From 58cda884ecc87dcce18d463b0c8bd928dae63ad8 Mon Sep 17 00:00:00 2001 From: Jean Pihet Date: Fri, 24 Jul 2009 19:43:25 -0600 Subject: OMAP3 SDRC: add support for 2 SDRAM chip selects Some OMAP3 boards (Beagle Cx, Overo, RX51, Pandora) have 2 SDRAM parts connected to the SDRC. This patch adds the following: - add a new argument of type omap_sdrc_params struct* to omap2_init_common_hw and omap2_sdrc_init for the 2nd CS params - adapted the OMAP boards files to the new prototype of omap2_init_common_hw - add the SDRC 2nd CS registers offsets defines - adapt the sram sleep code to configure the SDRC for the 2nd CS Note: If the 2nd param to omap2_init_common_hw is NULL, then the parameters are not programmed into the SDRC CS1 registers Tested on 3430 SDP and Beagleboard rev C2 and B5, with suspend/resume and frequency changes (cpufreq). Signed-off-by: Jean Pihet Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/board-2430sdp.c | 2 +- arch/arm/mach-omap2/board-3430sdp.c | 2 +- arch/arm/mach-omap2/board-4430sdp.c | 2 +- arch/arm/mach-omap2/board-apollon.c | 2 +- arch/arm/mach-omap2/board-generic.c | 2 +- arch/arm/mach-omap2/board-h4.c | 2 +- arch/arm/mach-omap2/board-ldp.c | 2 +- arch/arm/mach-omap2/board-omap3beagle.c | 3 +- arch/arm/mach-omap2/board-omap3evm.c | 2 +- arch/arm/mach-omap2/board-omap3pandora.c | 3 +- arch/arm/mach-omap2/board-overo.c | 3 +- arch/arm/mach-omap2/board-rx51.c | 2 +- arch/arm/mach-omap2/board-zoom2.c | 2 +- arch/arm/mach-omap2/clock34xx.c | 37 +++++++-- arch/arm/mach-omap2/io.c | 5 +- arch/arm/mach-omap2/sdrc.c | 63 +++++++++----- arch/arm/mach-omap2/sram34xx.S | 137 ++++++++++++++++++++++++------- arch/arm/plat-omap/include/mach/io.h | 3 +- arch/arm/plat-omap/include/mach/sdrc.h | 11 ++- arch/arm/plat-omap/include/mach/sram.h | 23 +++--- arch/arm/plat-omap/sram.c | 30 ++++--- 21 files changed, 236 insertions(+), 102 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c index 9c3fdcdf76c..8ec2a132904 100644 --- a/arch/arm/mach-omap2/board-2430sdp.c +++ b/arch/arm/mach-omap2/board-2430sdp.c @@ -141,7 +141,7 @@ static inline void board_smc91x_init(void) static void __init omap_2430sdp_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); omap_init_irq(); omap_gpio_init(); } diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c index 496a90e4ea7..ac262cd7450 100644 --- a/arch/arm/mach-omap2/board-3430sdp.c +++ b/arch/arm/mach-omap2/board-3430sdp.c @@ -169,7 +169,7 @@ static struct platform_device *sdp3430_devices[] __initdata = { static void __init omap_3430sdp_init_irq(void) { - omap2_init_common_hw(hyb18m512160af6_sdrc_params); + omap2_init_common_hw(hyb18m512160af6_sdrc_params, NULL); omap_init_irq(); omap_gpio_init(); } diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c index 57e477bd89c..b0c7402248f 100644 --- a/arch/arm/mach-omap2/board-4430sdp.c +++ b/arch/arm/mach-omap2/board-4430sdp.c @@ -59,7 +59,7 @@ static void __init gic_init_irq(void) static void __init omap_4430sdp_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); #ifdef CONFIG_OMAP_32K_TIMER omap2_gp_clockevent_set_gptimer(1); #endif diff --git a/arch/arm/mach-omap2/board-apollon.c b/arch/arm/mach-omap2/board-apollon.c index 06dfba888b0..dcfc20d0389 100644 --- a/arch/arm/mach-omap2/board-apollon.c +++ b/arch/arm/mach-omap2/board-apollon.c @@ -250,7 +250,7 @@ out: static void __init omap_apollon_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); omap_init_irq(); omap_gpio_init(); apollon_init_smc91x(); diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index 3492162a65c..fd00aa03690 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -33,7 +33,7 @@ static void __init omap_generic_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); omap_init_irq(); } diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c index e7d017cdc43..7b1d61d5bb2 100644 --- a/arch/arm/mach-omap2/board-h4.c +++ b/arch/arm/mach-omap2/board-h4.c @@ -270,7 +270,7 @@ static void __init h4_init_flash(void) static void __init omap_h4_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); omap_init_irq(); omap_gpio_init(); h4_init_flash(); diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c index d8bc0a7dcb8..ea383f88cb1 100644 --- a/arch/arm/mach-omap2/board-ldp.c +++ b/arch/arm/mach-omap2/board-ldp.c @@ -270,7 +270,7 @@ static inline void __init ldp_init_smsc911x(void) static void __init omap_ldp_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); omap_init_irq(); omap_gpio_init(); ldp_init_smsc911x(); diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index 991ac9c3803..4abefd9566e 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -282,7 +282,8 @@ static int __init omap3_beagle_i2c_init(void) static void __init omap3_beagle_init_irq(void) { - omap2_init_common_hw(mt46h32m32lf6_sdrc_params); + omap2_init_common_hw(mt46h32m32lf6_sdrc_params, + mt46h32m32lf6_sdrc_params); omap_init_irq(); #ifdef CONFIG_OMAP_32K_TIMER omap2_gp_clockevent_set_gptimer(12); diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c index d3cc145814d..217e5a2861d 100644 --- a/arch/arm/mach-omap2/board-omap3evm.c +++ b/arch/arm/mach-omap2/board-omap3evm.c @@ -279,7 +279,7 @@ struct spi_board_info omap3evm_spi_board_info[] = { static void __init omap3_evm_init_irq(void) { - omap2_init_common_hw(mt46h32m32lf6_sdrc_params); + omap2_init_common_hw(mt46h32m32lf6_sdrc_params, NULL); omap_init_irq(); omap_gpio_init(); omap3evm_init_smc911x(); diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c index e32aa23ce96..9b991ced382 100644 --- a/arch/arm/mach-omap2/board-omap3pandora.c +++ b/arch/arm/mach-omap2/board-omap3pandora.c @@ -310,7 +310,8 @@ static int __init omap3pandora_i2c_init(void) static void __init omap3pandora_init_irq(void) { - omap2_init_common_hw(mt46h32m32lf6_sdrc_params); + omap2_init_common_hw(mt46h32m32lf6_sdrc_params, + mt46h32m32lf6_sdrc_params); omap_init_irq(); omap_gpio_init(); } diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c index dff5528fbfb..44bc1c54cd0 100644 --- a/arch/arm/mach-omap2/board-overo.c +++ b/arch/arm/mach-omap2/board-overo.c @@ -360,7 +360,8 @@ static int __init overo_i2c_init(void) static void __init overo_init_irq(void) { - omap2_init_common_hw(mt46h32m32lf6_sdrc_params); + omap2_init_common_hw(mt46h32m32lf6_sdrc_params, + mt46h32m32lf6_sdrc_params); omap_init_irq(); omap_gpio_init(); } diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c index 374ff63c3eb..591ae8a5805 100644 --- a/arch/arm/mach-omap2/board-rx51.c +++ b/arch/arm/mach-omap2/board-rx51.c @@ -61,7 +61,7 @@ static struct omap_board_config_kernel rx51_config[] = { static void __init rx51_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); omap_init_irq(); omap_gpio_init(); } diff --git a/arch/arm/mach-omap2/board-zoom2.c b/arch/arm/mach-omap2/board-zoom2.c index bcc0f7632de..427b7b8b123 100644 --- a/arch/arm/mach-omap2/board-zoom2.c +++ b/arch/arm/mach-omap2/board-zoom2.c @@ -25,7 +25,7 @@ static void __init omap_zoom2_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); omap_init_irq(); omap_gpio_init(); } diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c index 045da923e75..1c6480d3ad6 100644 --- a/arch/arm/mach-omap2/clock34xx.c +++ b/arch/arm/mach-omap2/clock34xx.c @@ -725,7 +725,9 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate) u32 unlock_dll = 0; u32 c; unsigned long validrate, sdrcrate, mpurate; - struct omap_sdrc_params *sp; + struct omap_sdrc_params *sdrc_cs0; + struct omap_sdrc_params *sdrc_cs1; + int ret; if (!clk || !rate) return -EINVAL; @@ -743,8 +745,8 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate) else sdrcrate >>= ((clk->rate / rate) >> 1); - sp = omap2_sdrc_get_params(sdrcrate); - if (!sp) + ret = omap2_sdrc_get_params(sdrcrate, &sdrc_cs0, &sdrc_cs1); + if (ret) return -EINVAL; if (sdrcrate < MIN_SDRC_DLL_LOCK_FREQ) { @@ -765,12 +767,29 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate) pr_debug("clock: changing CORE DPLL rate from %lu to %lu\n", clk->rate, validrate); - pr_debug("clock: SDRC timing params used: %08x %08x %08x\n", - sp->rfr_ctrl, sp->actim_ctrla, sp->actim_ctrlb); - - omap3_configure_core_dpll(sp->rfr_ctrl, sp->actim_ctrla, - sp->actim_ctrlb, new_div, unlock_dll, c, - sp->mr, rate > clk->rate); + pr_debug("clock: SDRC CS0 timing params used:" + " RFR %08x CTRLA %08x CTRLB %08x MR %08x\n", + sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla, + sdrc_cs0->actim_ctrlb, sdrc_cs0->mr); + if (sdrc_cs1) + pr_debug("clock: SDRC CS1 timing params used: " + " RFR %08x CTRLA %08x CTRLB %08x MR %08x\n", + sdrc_cs1->rfr_ctrl, sdrc_cs1->actim_ctrla, + sdrc_cs1->actim_ctrlb, sdrc_cs1->mr); + + if (sdrc_cs1) + omap3_configure_core_dpll( + new_div, unlock_dll, c, rate > clk->rate, + sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla, + sdrc_cs0->actim_ctrlb, sdrc_cs0->mr, + sdrc_cs1->rfr_ctrl, sdrc_cs1->actim_ctrla, + sdrc_cs1->actim_ctrlb, sdrc_cs1->mr); + else + omap3_configure_core_dpll( + new_div, unlock_dll, c, rate > clk->rate, + sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla, + sdrc_cs0->actim_ctrlb, sdrc_cs0->mr, + 0, 0, 0, 0); return 0; } diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 3a86b0f6603..e9b9bcb19b4 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -276,14 +276,15 @@ static int __init _omap2_init_reprogram_sdrc(void) return v; } -void __init omap2_init_common_hw(struct omap_sdrc_params *sp) +void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1) { omap2_mux_init(); #ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once the clkdev is ready */ pwrdm_init(powerdomains_omap); clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps); omap2_clk_init(); - omap2_sdrc_init(sp); + omap2_sdrc_init(sdrc_cs0, sdrc_cs1); _omap2_init_reprogram_sdrc(); #endif gpmc_init(); diff --git a/arch/arm/mach-omap2/sdrc.c b/arch/arm/mach-omap2/sdrc.c index 2045441e838..2e9e38db30e 100644 --- a/arch/arm/mach-omap2/sdrc.c +++ b/arch/arm/mach-omap2/sdrc.c @@ -32,7 +32,7 @@ #include #include "sdrc.h" -static struct omap_sdrc_params *sdrc_init_params; +static struct omap_sdrc_params *sdrc_init_params_cs0, *sdrc_init_params_cs1; void __iomem *omap2_sdrc_base; void __iomem *omap2_sms_base; @@ -45,33 +45,49 @@ void __iomem *omap2_sms_base; /** * omap2_sdrc_get_params - return SDRC register values for a given clock rate * @r: SDRC clock rate (in Hz) + * @sdrc_cs0: chip select 0 ram timings ** + * @sdrc_cs1: chip select 1 ram timings ** * * Return pre-calculated values for the SDRC_ACTIM_CTRLA, - * SDRC_ACTIM_CTRLB, SDRC_RFR_CTRL, and SDRC_MR registers, for a given - * SDRC clock rate 'r'. These parameters control various timing - * delays in the SDRAM controller that are expressed in terms of the - * number of SDRC clock cycles to wait; hence the clock rate - * dependency. Note that sdrc_init_params must be sorted rate - * descending. Also assumes that both chip-selects use the same - * timing parameters. Returns a struct omap_sdrc_params * upon - * success, or NULL upon failure. + * SDRC_ACTIM_CTRLB, SDRC_RFR_CTRL and SDRC_MR registers in sdrc_cs[01] + * structs,for a given SDRC clock rate 'r'. + * These parameters control various timing delays in the SDRAM controller + * that are expressed in terms of the number of SDRC clock cycles to + * wait; hence the clock rate dependency. + * + * Supports 2 different timing parameters for both chip selects. + * + * Note 1: the sdrc_init_params_cs[01] must be sorted rate descending. + * Note 2: If sdrc_init_params_cs_1 is not NULL it must be of same size + * as sdrc_init_params_cs_0. + * + * Fills in the struct omap_sdrc_params * for each chip select. + * Returns 0 upon success or -1 upon failure. */ -struct omap_sdrc_params *omap2_sdrc_get_params(unsigned long r) +int omap2_sdrc_get_params(unsigned long r, + struct omap_sdrc_params **sdrc_cs0, + struct omap_sdrc_params **sdrc_cs1) { - struct omap_sdrc_params *sp; + struct omap_sdrc_params *sp0, *sp1; - if (!sdrc_init_params) - return NULL; + if (!sdrc_init_params_cs0) + return -1; - sp = sdrc_init_params; + sp0 = sdrc_init_params_cs0; + sp1 = sdrc_init_params_cs1; - while (sp->rate && sp->rate != r) - sp++; + while (sp0->rate && sp0->rate != r) { + sp0++; + if (sdrc_init_params_cs1) + sp1++; + } - if (!sp->rate) - return NULL; + if (!sp0->rate) + return -1; - return sp; + *sdrc_cs0 = sp0; + *sdrc_cs1 = sp1; + return 0; } @@ -83,13 +99,15 @@ void __init omap2_set_globals_sdrc(struct omap_globals *omap2_globals) /** * omap2_sdrc_init - initialize SMS, SDRC devices on boot - * @sp: pointer to a null-terminated list of struct omap_sdrc_params + * @sdrc_cs[01]: pointers to a null-terminated list of struct omap_sdrc_params + * Support for 2 chip selects timings * * Turn on smart idle modes for SDRAM scheduler and controller. * Program a known-good configuration for the SDRC to deal with buggy * bootloaders. */ -void __init omap2_sdrc_init(struct omap_sdrc_params *sp) +void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1) { u32 l; @@ -103,7 +121,8 @@ void __init omap2_sdrc_init(struct omap_sdrc_params *sp) l |= (0x2 << 3); sdrc_write_reg(l, SDRC_SYSCONFIG); - sdrc_init_params = sp; + sdrc_init_params_cs0 = sdrc_cs0; + sdrc_init_params_cs1 = sdrc_cs1; /* XXX Enable SRFRONIDLEREQ here also? */ l = (1 << SDRC_POWER_EXTCLKDIS_SHIFT) | diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S index f41f8d96ddb..3aef7448b2a 100644 --- a/arch/arm/mach-omap2/sram34xx.S +++ b/arch/arm/mach-omap2/sram34xx.S @@ -36,7 +36,7 @@ .text -/* r4 parameters */ +/* r1 parameters */ #define SDRC_NO_UNLOCK_DLL 0x0 #define SDRC_UNLOCK_DLL 0x1 @@ -71,40 +71,71 @@ /* * omap3_sram_configure_core_dpll - change DPLL3 M2 divider - * r0 = new SDRC_RFR_CTRL register contents - * r1 = new SDRC_ACTIM_CTRLA register contents - * r2 = new SDRC_ACTIM_CTRLB register contents - * r3 = new M2 divider setting (only 1 and 2 supported right now) - * r4 = unlock SDRC DLL? (1 = yes, 0 = no). Only unlock DLL for + * + * Params passed in registers: + * r0 = new M2 divider setting (only 1 and 2 supported right now) + * r1 = unlock SDRC DLL? (1 = yes, 0 = no). Only unlock DLL for * SDRC rates < 83MHz - * r5 = number of MPU cycles to wait for SDRC to stabilize after + * r2 = number of MPU cycles to wait for SDRC to stabilize after * reprogramming the SDRC when switching to a slower MPU speed - * r6 = new SDRC_MR_0 register value - * r7 = increasing SDRC rate? (1 = yes, 0 = no) + * r3 = increasing SDRC rate? (1 = yes, 0 = no) + * + * Params passed via the stack. The needed params will be copied in SRAM + * before use by the code in SRAM (SDRAM is not accessible during SDRC + * reconfiguration): + * new SDRC_RFR_CTRL_0 register contents + * new SDRC_ACTIM_CTRL_A_0 register contents + * new SDRC_ACTIM_CTRL_B_0 register contents + * new SDRC_MR_0 register value + * new SDRC_RFR_CTRL_1 register contents + * new SDRC_ACTIM_CTRL_A_1 register contents + * new SDRC_ACTIM_CTRL_B_1 register contents + * new SDRC_MR_1 register value * + * If the param SDRC_RFR_CTRL_1 is 0, the parameters + * are not programmed into the SDRC CS1 registers */ ENTRY(omap3_sram_configure_core_dpll) stmfd sp!, {r1-r12, lr} @ store regs to stack - ldr r4, [sp, #52] @ pull extra args off the stack - ldr r5, [sp, #56] @ load extra args from the stack - ldr r6, [sp, #60] @ load extra args from the stack - ldr r7, [sp, #64] @ load extra args from the stack + + @ pull the extra args off the stack + @ and store them in SRAM + ldr r4, [sp, #52] + str r4, omap_sdrc_rfr_ctrl_0_val + ldr r4, [sp, #56] + str r4, omap_sdrc_actim_ctrl_a_0_val + ldr r4, [sp, #60] + str r4, omap_sdrc_actim_ctrl_b_0_val + ldr r4, [sp, #64] + str r4, omap_sdrc_mr_0_val + ldr r4, [sp, #68] + str r4, omap_sdrc_rfr_ctrl_1_val + cmp r4, #0 @ if SDRC_RFR_CTRL_1 is 0, + beq skip_cs1_params @ do not use cs1 params + ldr r4, [sp, #72] + str r4, omap_sdrc_actim_ctrl_a_1_val + ldr r4, [sp, #76] + str r4, omap_sdrc_actim_ctrl_b_1_val + ldr r4, [sp, #80] + str r4, omap_sdrc_mr_1_val +skip_cs1_params: dsb @ flush buffered writes to interconnect - cmp r7, #1 @ if increasing SDRC clk rate, + + cmp r3, #1 @ if increasing SDRC clk rate, bleq configure_sdrc @ program the SDRC regs early (for RFR) - cmp r4, #SDRC_UNLOCK_DLL @ set the intended DLL state + cmp r1, #SDRC_UNLOCK_DLL @ set the intended DLL state bleq unlock_dll blne lock_dll bl sdram_in_selfrefresh @ put SDRAM in self refresh, idle SDRC bl configure_core_dpll @ change the DPLL3 M2 divider bl enable_sdrc @ take SDRC out of idle - cmp r4, #SDRC_UNLOCK_DLL @ wait for DLL status to change + cmp r1, #SDRC_UNLOCK_DLL @ wait for DLL status to change bleq wait_dll_unlock blne wait_dll_lock - cmp r7, #1 @ if increasing SDRC clk rate, + cmp r3, #1 @ if increasing SDRC clk rate, beq return_to_sdram @ return to SDRAM code, otherwise, bl configure_sdrc @ reprogram SDRC regs now - mov r12, r5 + mov r12, r2 bl wait_clk_stable @ wait for SDRC to stabilize return_to_sdram: isb @ prevent speculative exec past here @@ -149,7 +180,7 @@ configure_core_dpll: ldr r12, [r11] ldr r10, core_m2_mask_val @ modify m2 for core dpll and r12, r12, r10 - orr r12, r12, r3, lsl #CORE_DPLL_CLKOUT_DIV_SHIFT + orr r12, r12, r0, lsl #CORE_DPLL_CLKOUT_DIV_SHIFT str r12, [r11] ldr r12, [r11] @ posted-write barrier for CM bx lr @@ -187,15 +218,34 @@ wait_dll_unlock: bne wait_dll_unlock bx lr configure_sdrc: - ldr r11, omap3_sdrc_rfr_ctrl - str r0, [r11] - ldr r11, omap3_sdrc_actim_ctrla - str r1, [r11] - ldr r11, omap3_sdrc_actim_ctrlb - str r2, [r11] + ldr r12, omap_sdrc_rfr_ctrl_0_val @ fetch value from SRAM + ldr r11, omap3_sdrc_rfr_ctrl_0 @ fetch addr from SRAM + str r12, [r11] @ store + ldr r12, omap_sdrc_actim_ctrl_a_0_val + ldr r11, omap3_sdrc_actim_ctrl_a_0 + str r12, [r11] + ldr r12, omap_sdrc_actim_ctrl_b_0_val + ldr r11, omap3_sdrc_actim_ctrl_b_0 + str r12, [r11] + ldr r12, omap_sdrc_mr_0_val ldr r11, omap3_sdrc_mr_0 - str r6, [r11] - ldr r6, [r11] @ posted-write barrier for SDRC + str r12, [r11] + ldr r12, omap_sdrc_rfr_ctrl_1_val + cmp r12, #0 @ if SDRC_RFR_CTRL_1 is 0, + beq skip_cs1_prog @ do not program cs1 params + ldr r11, omap3_sdrc_rfr_ctrl_1 + str r12, [r11] + ldr r12, omap_sdrc_actim_ctrl_a_1_val + ldr r11, omap3_sdrc_actim_ctrl_a_1 + str r12, [r11] + ldr r12, omap_sdrc_actim_ctrl_b_1_val + ldr r11, omap3_sdrc_actim_ctrl_b_1 + str r12, [r11] + ldr r12, omap_sdrc_mr_1_val + ldr r11, omap3_sdrc_mr_1 + str r12, [r11] +skip_cs1_prog: + ldr r12, [r11] @ posted-write barrier for SDRC bx lr omap3_sdrc_power: @@ -206,14 +256,40 @@ omap3_cm_idlest1_core: .word OMAP34XX_CM_REGADDR(CORE_MOD, CM_IDLEST) omap3_cm_iclken1_core: .word OMAP34XX_CM_REGADDR(CORE_MOD, CM_ICLKEN1) -omap3_sdrc_rfr_ctrl: + +omap3_sdrc_rfr_ctrl_0: .word OMAP34XX_SDRC_REGADDR(SDRC_RFR_CTRL_0) -omap3_sdrc_actim_ctrla: +omap3_sdrc_rfr_ctrl_1: + .word OMAP34XX_SDRC_REGADDR(SDRC_RFR_CTRL_1) +omap3_sdrc_actim_ctrl_a_0: .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_A_0) -omap3_sdrc_actim_ctrlb: +omap3_sdrc_actim_ctrl_a_1: + .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_A_1) +omap3_sdrc_actim_ctrl_b_0: .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_B_0) +omap3_sdrc_actim_ctrl_b_1: + .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_B_1) omap3_sdrc_mr_0: .word OMAP34XX_SDRC_REGADDR(SDRC_MR_0) +omap3_sdrc_mr_1: + .word OMAP34XX_SDRC_REGADDR(SDRC_MR_1) +omap_sdrc_rfr_ctrl_0_val: + .word 0xDEADBEEF +omap_sdrc_rfr_ctrl_1_val: + .word 0xDEADBEEF +omap_sdrc_actim_ctrl_a_0_val: + .word 0xDEADBEEF +omap_sdrc_actim_ctrl_a_1_val: + .word 0xDEADBEEF +omap_sdrc_actim_ctrl_b_0_val: + .word 0xDEADBEEF +omap_sdrc_actim_ctrl_b_1_val: + .word 0xDEADBEEF +omap_sdrc_mr_0_val: + .word 0xDEADBEEF +omap_sdrc_mr_1_val: + .word 0xDEADBEEF + omap3_sdrc_dlla_status: .word OMAP34XX_SDRC_REGADDR(SDRC_DLLA_STATUS) omap3_sdrc_dlla_ctrl: @@ -223,3 +299,4 @@ core_m2_mask_val: ENTRY(omap3_sram_configure_core_dpll_sz) .word . - omap3_sram_configure_core_dpll + diff --git a/arch/arm/plat-omap/include/mach/io.h b/arch/arm/plat-omap/include/mach/io.h index 73f483d56ca..21fb0efdda8 100644 --- a/arch/arm/plat-omap/include/mach/io.h +++ b/arch/arm/plat-omap/include/mach/io.h @@ -228,7 +228,8 @@ extern void omap1_map_common_io(void); extern void omap1_init_common_hw(void); extern void omap2_map_common_io(void); -extern void omap2_init_common_hw(struct omap_sdrc_params *sp); +extern void omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1); #define __arch_ioremap(p,s,t) omap_ioremap(p,s,t) #define __arch_iounmap(v) omap_iounmap(v) diff --git a/arch/arm/plat-omap/include/mach/sdrc.h b/arch/arm/plat-omap/include/mach/sdrc.h index adc73522491..0be18e4ff18 100644 --- a/arch/arm/plat-omap/include/mach/sdrc.h +++ b/arch/arm/plat-omap/include/mach/sdrc.h @@ -30,6 +30,10 @@ #define SDRC_ACTIM_CTRL_A_0 0x09c #define SDRC_ACTIM_CTRL_B_0 0x0a0 #define SDRC_RFR_CTRL_0 0x0a4 +#define SDRC_MR_1 0x0B4 +#define SDRC_ACTIM_CTRL_A_1 0x0C4 +#define SDRC_ACTIM_CTRL_B_1 0x0C8 +#define SDRC_RFR_CTRL_1 0x0D4 /* * These values represent the number of memory clock cycles between @@ -102,8 +106,11 @@ struct omap_sdrc_params { u32 mr; }; -void __init omap2_sdrc_init(struct omap_sdrc_params *sp); -struct omap_sdrc_params *omap2_sdrc_get_params(unsigned long r); +void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1); +int omap2_sdrc_get_params(unsigned long r, + struct omap_sdrc_params **sdrc_cs0, + struct omap_sdrc_params **sdrc_cs1); #ifdef CONFIG_ARCH_OMAP2 diff --git a/arch/arm/plat-omap/include/mach/sram.h b/arch/arm/plat-omap/include/mach/sram.h index 4d53cc59d7a..8974e3fc269 100644 --- a/arch/arm/plat-omap/include/mach/sram.h +++ b/arch/arm/plat-omap/include/mach/sram.h @@ -21,11 +21,12 @@ extern void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, u32 mem_type); extern u32 omap2_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass); -extern u32 omap3_configure_core_dpll(u32 sdrc_rfr_ctrl, - u32 sdrc_actim_ctrla, - u32 sdrc_actim_ctrlb, u32 m2, - u32 unlock_dll, u32 f, u32 sdrc_mr, - u32 inc); +extern u32 omap3_configure_core_dpll( + u32 m2, u32 unlock_dll, u32 f, u32 inc, + u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, + u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, + u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, + u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1); /* Do not use these */ extern void omap1_sram_reprogram_clock(u32 ckctl, u32 dpllctl); @@ -59,12 +60,12 @@ extern void omap243x_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, u32 mem_type); extern unsigned long omap243x_sram_reprogram_sdrc_sz; - -extern u32 omap3_sram_configure_core_dpll(u32 sdrc_rfr_ctrl, - u32 sdrc_actim_ctrla, - u32 sdrc_actim_ctrlb, u32 m2, - u32 unlock_dll, u32 f, u32 sdrc_mr, - u32 inc); +extern u32 omap3_sram_configure_core_dpll( + u32 m2, u32 unlock_dll, u32 f, u32 inc, + u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, + u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, + u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, + u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1); extern unsigned long omap3_sram_configure_core_dpll_sz; #endif diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index 4ea73804d21..4e781c99f0e 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c @@ -373,20 +373,26 @@ static inline int omap243x_sram_init(void) #ifdef CONFIG_ARCH_OMAP3 -static u32 (*_omap3_sram_configure_core_dpll)(u32 sdrc_rfr_ctrl, - u32 sdrc_actim_ctrla, - u32 sdrc_actim_ctrlb, - u32 m2, u32 unlock_dll, - u32 f, u32 sdrc_mr, u32 inc); -u32 omap3_configure_core_dpll(u32 sdrc_rfr_ctrl, u32 sdrc_actim_ctrla, - u32 sdrc_actim_ctrlb, u32 m2, u32 unlock_dll, - u32 f, u32 sdrc_mr, u32 inc) +static u32 (*_omap3_sram_configure_core_dpll)( + u32 m2, u32 unlock_dll, u32 f, u32 inc, + u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, + u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, + u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, + u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1); + +u32 omap3_configure_core_dpll(u32 m2, u32 unlock_dll, u32 f, u32 inc, + u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, + u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, + u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, + u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1) { BUG_ON(!_omap3_sram_configure_core_dpll); - return _omap3_sram_configure_core_dpll(sdrc_rfr_ctrl, - sdrc_actim_ctrla, - sdrc_actim_ctrlb, m2, - unlock_dll, f, sdrc_mr, inc); + return _omap3_sram_configure_core_dpll( + m2, unlock_dll, f, inc, + sdrc_rfr_ctrl_0, sdrc_actim_ctrl_a_0, + sdrc_actim_ctrl_b_0, sdrc_mr_0, + sdrc_rfr_ctrl_1, sdrc_actim_ctrl_a_1, + sdrc_actim_ctrl_b_1, sdrc_mr_1); } /* REVISIT: Should this be same as omap34xx_sram_init() after off-idle? */ -- cgit v1.2.3-70-g09d2 From 9fb97412c3be5d0d1dd0e9d7c5268469e4c942aa Mon Sep 17 00:00:00 2001 From: Jean Pihet Date: Fri, 24 Jul 2009 19:43:25 -0600 Subject: OMAP3: Setup MUX settings for SDRC CKE signals This patches ensures the MUX settings are correct for the SDRC CKE signals to SDRAM. This allows the self-refresh to work when 2 chip-selects are in use. A warning is thrown away in case the initial muxing is incorrect, in order to track faulty or old-dated bootloaders. Note: The CONFIG_OMAP_MUX and CONFIG_OMAP_MUX_WARNINGS options must be enabled for the mux code to have effect. Signed-off-by: Jean Pihet Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/board-omap3beagle.c | 4 ++++ arch/arm/mach-omap2/board-omap3pandora.c | 5 +++++ arch/arm/mach-omap2/board-overo.c | 5 +++++ arch/arm/mach-omap2/board-rx51.c | 4 ++++ arch/arm/mach-omap2/mux.c | 6 ++++++ arch/arm/plat-omap/include/mach/mux.h | 4 ++++ 6 files changed, 28 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index 4abefd9566e..e00ba128cec 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -409,6 +409,10 @@ static void __init omap3_beagle_init(void) usb_musb_init(); omap3beagle_flash_init(); + + /* Ensure SDRC pins are mux'd for self-refresh */ + omap_cfg_reg(H16_34XX_SDRC_CKE0); + omap_cfg_reg(H17_34XX_SDRC_CKE1); } static void __init omap3_beagle_map_io(void) diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c index 9b991ced382..864ee3d021f 100644 --- a/arch/arm/mach-omap2/board-omap3pandora.c +++ b/arch/arm/mach-omap2/board-omap3pandora.c @@ -40,6 +40,7 @@ #include #include #include +#include #include "sdram-micron-mt46h32m32lf-6.h" #include "mmc-twl4030.h" @@ -398,6 +399,10 @@ static void __init omap3pandora_init(void) omap3pandora_ads7846_init(); pandora_keys_gpio_init(); usb_musb_init(); + + /* Ensure SDRC pins are mux'd for self-refresh */ + omap_cfg_reg(H16_34XX_SDRC_CKE0); + omap_cfg_reg(H17_34XX_SDRC_CKE1); } static void __init omap3pandora_map_io(void) diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c index 44bc1c54cd0..6b171b338ec 100644 --- a/arch/arm/mach-omap2/board-overo.c +++ b/arch/arm/mach-omap2/board-overo.c @@ -44,6 +44,7 @@ #include #include #include +#include #include #include "sdram-micron-mt46h32m32lf-6.h" @@ -396,6 +397,10 @@ static void __init overo_init(void) overo_ads7846_init(); overo_init_smsc911x(); + /* Ensure SDRC pins are mux'd for self-refresh */ + omap_cfg_reg(H16_34XX_SDRC_CKE0); + omap_cfg_reg(H17_34XX_SDRC_CKE1); + if ((gpio_request(OVERO_GPIO_W2W_NRESET, "OVERO_GPIO_W2W_NRESET") == 0) && (gpio_direction_output(OVERO_GPIO_W2W_NRESET, 1) == 0)) { diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c index 591ae8a5805..1c9e07fe826 100644 --- a/arch/arm/mach-omap2/board-rx51.c +++ b/arch/arm/mach-omap2/board-rx51.c @@ -75,6 +75,10 @@ static void __init rx51_init(void) omap_serial_init(); usb_musb_init(); rx51_peripherals_init(); + + /* Ensure SDRC pins are mux'd for self-refresh */ + omap_cfg_reg(H16_34XX_SDRC_CKE0); + omap_cfg_reg(H17_34XX_SDRC_CKE1); } static void __init rx51_map_io(void) diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c index 026c4fc883a..43d6b92b65f 100644 --- a/arch/arm/mach-omap2/mux.c +++ b/arch/arm/mach-omap2/mux.c @@ -486,6 +486,12 @@ MUX_CFG_34XX("H19_34XX_GPIO164_OUT", 0x19c, OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_OUTPUT) MUX_CFG_34XX("J25_34XX_GPIO170", 0x1c6, OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT) + +/* OMAP3 SDRC CKE signals to SDR/DDR ram chips */ +MUX_CFG_34XX("H16_34XX_SDRC_CKE0", 0x262, + OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_OUTPUT) +MUX_CFG_34XX("H17_34XX_SDRC_CKE1", 0x264, + OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_OUTPUT) }; #define OMAP34XX_PINS_SZ ARRAY_SIZE(omap34xx_pins) diff --git a/arch/arm/plat-omap/include/mach/mux.h b/arch/arm/plat-omap/include/mach/mux.h index 85a62170576..80281c458ba 100644 --- a/arch/arm/plat-omap/include/mach/mux.h +++ b/arch/arm/plat-omap/include/mach/mux.h @@ -853,6 +853,10 @@ enum omap34xx_index { AE5_34XX_GPIO143, H19_34XX_GPIO164_OUT, J25_34XX_GPIO170, + + /* OMAP3 SDRC CKE signals to SDR/DDR ram chips */ + H16_34XX_SDRC_CKE0, + H17_34XX_SDRC_CKE1, }; struct omap_mux_cfg { -- cgit v1.2.3-70-g09d2 From 75f251e3d0803b028f3474fdc75be0994c377ab5 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Fri, 24 Jul 2009 19:44:01 -0600 Subject: OMAP2/3 SDRC: don't set SDRC_POWER.PWDENA on boot Stop setting SDRC_POWER.PWDENA on boot. There is a nasty erratum (34xx erratum 1.150) that can cause memory corruption if PWDENA is enabled. Based originally on a patch from Samu P. Onkalo . Tested on BeagleBoard rev C2. Signed-off-by: Paul Walmsley Cc: Samu P. Onkalo --- arch/arm/mach-omap2/sdrc.c | 5 ++++- arch/arm/mach-omap2/sram34xx.S | 2 -- 2 files changed, 4 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/sdrc.c b/arch/arm/mach-omap2/sdrc.c index 2e9e38db30e..9e3bd4fa781 100644 --- a/arch/arm/mach-omap2/sdrc.c +++ b/arch/arm/mach-omap2/sdrc.c @@ -125,8 +125,11 @@ void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, sdrc_init_params_cs1 = sdrc_cs1; /* XXX Enable SRFRONIDLEREQ here also? */ + /* + * PWDENA should not be set due to 34xx erratum 1.150 - PWDENA + * can cause random memory corruption + */ l = (1 << SDRC_POWER_EXTCLKDIS_SHIFT) | - (1 << SDRC_POWER_PWDENA_SHIFT) | (1 << SDRC_POWER_PAGEPOLICY_SHIFT); sdrc_write_reg(l, SDRC_POWER); } diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S index 3aef7448b2a..9c2d0465a83 100644 --- a/arch/arm/mach-omap2/sram34xx.S +++ b/arch/arm/mach-omap2/sram34xx.S @@ -58,7 +58,6 @@ /* SDRC_POWER bit settings */ #define SRFRONIDLEREQ_MASK 0x40 -#define PWDENA_MASK 0x4 /* CM_IDLEST1_CORE bit settings */ #define ST_SDRC_MASK 0x2 @@ -160,7 +159,6 @@ sdram_in_selfrefresh: ldr r12, [r11] @ read the contents of SDRC_POWER mov r9, r12 @ keep a copy of SDRC_POWER bits orr r12, r12, #SRFRONIDLEREQ_MASK @ enable self refresh on idle - bic r12, r12, #PWDENA_MASK @ clear PWDENA str r12, [r11] @ write back to SDRC_POWER register ldr r12, [r11] @ posted-write barrier for SDRC idle_sdrc: -- cgit v1.2.3-70-g09d2 From 8ff120e5303e27e03aba7b774e86fd43eaf90376 Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Fri, 24 Jul 2009 19:44:01 -0600 Subject: OMAP3 SDRC: Fix freeze when scaling CORE dpll to < 83Mhz This patch fixes a bug in the CORE dpll scaling sequence which was errouneously clearing some bits in the SDRC DLLA CTRL register and hence causing a freeze. The issue was observed only on platforms which scale CORE dpll to < 83Mhz and hence program the DLL in fixed delay mode. Issue reported by Limei Wang , with debugging assistance from Richard Woodruff and Girish Ghongdemath . Signed-off-by: Rajendra Nayak Cc: Limei Wang Cc: Richard Woodruff Cc: Girish Ghongdemath Signed-off-by: Paul Walmsley [paul@pwsan.com: updated patch description to include collaboration credits] --- arch/arm/mach-omap2/sram34xx.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S index 9c2d0465a83..e6b112590d7 100644 --- a/arch/arm/mach-omap2/sram34xx.S +++ b/arch/arm/mach-omap2/sram34xx.S @@ -143,7 +143,7 @@ return_to_sdram: unlock_dll: ldr r11, omap3_sdrc_dlla_ctrl ldr r12, [r11] - and r12, r12, #FIXEDDELAY_MASK + bic r12, r12, #FIXEDDELAY_MASK orr r12, r12, #FIXEDDELAY_DEFAULT orr r12, r12, #DLLIDLE_MASK str r12, [r11] @ (no OCP barrier needed) -- cgit v1.2.3-70-g09d2 From df56556e571234cf26072cd58c01ac3520986b44 Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Fri, 24 Jul 2009 19:44:02 -0600 Subject: OMAP3 SDRC: Move the clk stabilization delay to the right place The clock stabilization delay post a M2 divider change is needed even before a SDRC interface clock re-enable and not only before jumping back to SDRAM. Signed-off-by: Rajendra Nayak Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/sram34xx.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S index e6b112590d7..82aa4a3d160 100644 --- a/arch/arm/mach-omap2/sram34xx.S +++ b/arch/arm/mach-omap2/sram34xx.S @@ -127,6 +127,8 @@ skip_cs1_params: blne lock_dll bl sdram_in_selfrefresh @ put SDRAM in self refresh, idle SDRC bl configure_core_dpll @ change the DPLL3 M2 divider + mov r12, r2 + bl wait_clk_stable @ wait for SDRC to stabilize bl enable_sdrc @ take SDRC out of idle cmp r1, #SDRC_UNLOCK_DLL @ wait for DLL status to change bleq wait_dll_unlock @@ -134,8 +136,6 @@ skip_cs1_params: cmp r3, #1 @ if increasing SDRC clk rate, beq return_to_sdram @ return to SDRAM code, otherwise, bl configure_sdrc @ reprogram SDRC regs now - mov r12, r2 - bl wait_clk_stable @ wait for SDRC to stabilize return_to_sdram: isb @ prevent speculative exec past here mov r0, #0 @ return value -- cgit v1.2.3-70-g09d2 From 72350b29a4c0debfc27c2edbeed9b4ff3f935dd4 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Fri, 24 Jul 2009 19:44:03 -0600 Subject: OMAP2/3 clock: split, rename omap2_wait_clock_ready() Some OMAP2/3 hardware modules have CM_IDLEST attributes that are not handled by the current omap2_wait_clock_ready() code. In preparation for patches that fix the unusual devices, rename the function omap2_wait_clock_ready() to omap2_wait_module_ready() and split it into three parts: 1. A clkops-specific companion clock return function (by default, omap2_clk_dflt_find_companion()) 2. A clkops-specific CM_IDLEST register address and bit shift return function (by default, omap2_clk_dflt_find_idlest()) 3. Code to wait for the CM to indicate that the module is ready (omap2_cm_wait_idlest()) Clocks can now specify their own custom find_companion() and find_idlest() functions; used in subsequent patches. Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/clock.c | 156 ++++++++++++++++---------------- arch/arm/mach-omap2/clock.h | 6 ++ arch/arm/mach-omap2/prcm.c | 43 +++++++++ arch/arm/plat-omap/include/mach/clock.h | 2 + arch/arm/plat-omap/include/mach/prcm.h | 1 + 5 files changed, 131 insertions(+), 77 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c index b0665f161c0..456e2ad5f62 100644 --- a/arch/arm/mach-omap2/clock.c +++ b/arch/arm/mach-omap2/clock.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include @@ -38,8 +39,6 @@ #include "cm-regbits-24xx.h" #include "cm-regbits-34xx.h" -#define MAX_CLOCK_ENABLE_WAIT 100000 - /* DPLL rate rounding: minimum DPLL multiplier, divider values */ #define DPLL_MIN_MULTIPLIER 1 #define DPLL_MIN_DIVIDER 1 @@ -274,83 +273,97 @@ unsigned long omap2_fixed_divisor_recalc(struct clk *clk) } /** - * omap2_wait_clock_ready - wait for clock to enable - * @reg: physical address of clock IDLEST register - * @mask: value to mask against to determine if the clock is active - * @name: name of the clock (for printk) + * omap2_clk_dflt_find_companion - find companion clock to @clk + * @clk: struct clk * to find the companion clock of + * @other_reg: void __iomem ** to return the companion clock CM_*CLKEN va in + * @other_bit: u8 ** to return the companion clock bit shift in + * + * Note: We don't need special code here for INVERT_ENABLE for the + * time being since INVERT_ENABLE only applies to clocks enabled by + * CM_CLKEN_PLL * - * Returns 1 if the clock enabled in time, or 0 if it failed to enable - * in roughly MAX_CLOCK_ENABLE_WAIT microseconds. + * Convert CM_ICLKEN* <-> CM_FCLKEN*. This conversion assumes it's + * just a matter of XORing the bits. + * + * Some clocks don't have companion clocks. For example, modules with + * only an interface clock (such as MAILBOXES) don't have a companion + * clock. Right now, this code relies on the hardware exporting a bit + * in the correct companion register that indicates that the + * nonexistent 'companion clock' is active. Future patches will + * associate this type of code with per-module data structures to + * avoid this issue, and remove the casts. No return value. */ -int omap2_wait_clock_ready(void __iomem *reg, u32 mask, const char *name) +void omap2_clk_dflt_find_companion(struct clk *clk, void __iomem **other_reg, + u8 *other_bit) { - int i = 0; - int ena = 0; + u32 r; /* - * 24xx uses 0 to indicate not ready, and 1 to indicate ready. - * 34xx reverses this, just to keep us on our toes + * Convert CM_ICLKEN* <-> CM_FCLKEN*. This conversion assumes + * it's just a matter of XORing the bits. */ - if (cpu_mask & (RATE_IN_242X | RATE_IN_243X)) - ena = mask; - else if (cpu_mask & RATE_IN_343X) - ena = 0; - - /* Wait for lock */ - while (((__raw_readl(reg) & mask) != ena) && - (i++ < MAX_CLOCK_ENABLE_WAIT)) { - udelay(1); - } - - if (i <= MAX_CLOCK_ENABLE_WAIT) - pr_debug("Clock %s stable after %d loops\n", name, i); - else - printk(KERN_ERR "Clock %s didn't enable in %d tries\n", - name, MAX_CLOCK_ENABLE_WAIT); - - - return (i < MAX_CLOCK_ENABLE_WAIT) ? 1 : 0; -}; + r = ((__force u32)clk->enable_reg ^ (CM_FCLKEN ^ CM_ICLKEN)); + *other_reg = (__force void __iomem *)r; + *other_bit = clk->enable_bit; +} -/* - * Note: We don't need special code here for INVERT_ENABLE - * for the time being since INVERT_ENABLE only applies to clocks enabled by - * CM_CLKEN_PLL +/** + * omap2_clk_dflt_find_idlest - find CM_IDLEST reg va, bit shift for @clk + * @clk: struct clk * to find IDLEST info for + * @idlest_reg: void __iomem ** to return the CM_IDLEST va in + * @idlest_bit: u8 ** to return the CM_IDLEST bit shift in + * + * Return the CM_IDLEST register address and bit shift corresponding + * to the module that "owns" this clock. This default code assumes + * that the CM_IDLEST bit shift is the CM_*CLKEN bit shift, and that + * the IDLEST register address ID corresponds to the CM_*CLKEN + * register address ID (e.g., that CM_FCLKEN2 corresponds to + * CM_IDLEST2). This is not true for all modules. No return value. */ -static void omap2_clk_wait_ready(struct clk *clk) +void omap2_clk_dflt_find_idlest(struct clk *clk, void __iomem **idlest_reg, + u8 *idlest_bit) { - void __iomem *reg, *other_reg, *st_reg; - u32 bit; + u32 r; - /* - * REVISIT: This code is pretty ugly. It would be nice to generalize - * it and pull it into struct clk itself somehow. - */ - reg = clk->enable_reg; + r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); + *idlest_reg = (__force void __iomem *)r; + *idlest_bit = clk->enable_bit; +} - /* - * Convert CM_ICLKEN* <-> CM_FCLKEN*. This conversion assumes - * it's just a matter of XORing the bits. - */ - other_reg = (void __iomem *)((u32)reg ^ (CM_FCLKEN ^ CM_ICLKEN)); +/** + * omap2_module_wait_ready - wait for an OMAP module to leave IDLE + * @clk: struct clk * belonging to the module + * + * If the necessary clocks for the OMAP hardware IP block that + * corresponds to clock @clk are enabled, then wait for the module to + * indicate readiness (i.e., to leave IDLE). This code does not + * belong in the clock code and will be moved in the medium term to + * module-dependent code. No return value. + */ +static void omap2_module_wait_ready(struct clk *clk) +{ + void __iomem *companion_reg, *idlest_reg; + u8 other_bit, idlest_bit; + + /* Not all modules have multiple clocks that their IDLEST depends on */ + if (clk->ops->find_companion) { + clk->ops->find_companion(clk, &companion_reg, &other_bit); + if (!(__raw_readl(companion_reg) & (1 << other_bit))) + return; + } - /* Check if both functional and interface clocks - * are running. */ - bit = 1 << clk->enable_bit; - if (!(__raw_readl(other_reg) & bit)) - return; - st_reg = (void __iomem *)(((u32)other_reg & ~0xf0) | 0x20); /* CM_IDLEST* */ + clk->ops->find_idlest(clk, &idlest_reg, &idlest_bit); - omap2_wait_clock_ready(st_reg, bit, clk->name); + omap2_cm_wait_idlest(idlest_reg, (1 << idlest_bit), clk->name); } -static int omap2_dflt_clk_enable(struct clk *clk) +int omap2_dflt_clk_enable(struct clk *clk) { u32 v; if (unlikely(clk->enable_reg == NULL)) { - printk(KERN_ERR "clock.c: Enable for %s without enable code\n", + pr_err("clock.c: Enable for %s without enable code\n", clk->name); return 0; /* REVISIT: -EINVAL */ } @@ -363,26 +376,13 @@ static int omap2_dflt_clk_enable(struct clk *clk) __raw_writel(v, clk->enable_reg); v = __raw_readl(clk->enable_reg); /* OCP barrier */ - return 0; -} + if (clk->ops->find_idlest) + omap2_module_wait_ready(clk); -static int omap2_dflt_clk_enable_wait(struct clk *clk) -{ - int ret; - - if (!clk->enable_reg) { - printk(KERN_ERR "clock.c: Enable for %s without enable code\n", - clk->name); - return 0; /* REVISIT: -EINVAL */ - } - - ret = omap2_dflt_clk_enable(clk); - if (ret == 0) - omap2_clk_wait_ready(clk); - return ret; + return 0; } -static void omap2_dflt_clk_disable(struct clk *clk) +void omap2_dflt_clk_disable(struct clk *clk) { u32 v; @@ -406,8 +406,10 @@ static void omap2_dflt_clk_disable(struct clk *clk) } const struct clkops clkops_omap2_dflt_wait = { - .enable = omap2_dflt_clk_enable_wait, + .enable = omap2_dflt_clk_enable, .disable = omap2_dflt_clk_disable, + .find_companion = omap2_clk_dflt_find_companion, + .find_idlest = omap2_clk_dflt_find_idlest, }; const struct clkops clkops_omap2_dflt = { diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h index 2679ddfa642..9ae7540f8af 100644 --- a/arch/arm/mach-omap2/clock.h +++ b/arch/arm/mach-omap2/clock.h @@ -65,6 +65,12 @@ int omap2_clksel_set_rate(struct clk *clk, unsigned long rate); u32 omap2_get_dpll_rate(struct clk *clk); int omap2_wait_clock_ready(void __iomem *reg, u32 cval, const char *name); void omap2_clk_prepare_for_reboot(void); +int omap2_dflt_clk_enable(struct clk *clk); +void omap2_dflt_clk_disable(struct clk *clk); +void omap2_clk_dflt_find_companion(struct clk *clk, void __iomem **other_reg, + u8 *other_bit); +void omap2_clk_dflt_find_idlest(struct clk *clk, void __iomem **idlest_reg, + u8 *idlest_bit); extern const struct clkops clkops_omap2_dflt_wait; extern const struct clkops clkops_omap2_dflt; diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c index f945156d558..ced555a4cd1 100644 --- a/arch/arm/mach-omap2/prcm.c +++ b/arch/arm/mach-omap2/prcm.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -28,6 +29,8 @@ static void __iomem *prm_base; static void __iomem *cm_base; +#define MAX_MODULE_ENABLE_WAIT 100000 + u32 omap_prcm_get_reset_sources(void) { /* XXX This presumably needs modification for 34XX */ @@ -120,6 +123,46 @@ u32 cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx) } EXPORT_SYMBOL(cm_rmw_mod_reg_bits); +/** + * omap2_cm_wait_idlest - wait for IDLEST bit to indicate module readiness + * @reg: physical address of module IDLEST register + * @mask: value to mask against to determine if the module is active + * @name: name of the clock (for printk) + * + * Returns 1 if the module indicated readiness in time, or 0 if it + * failed to enable in roughly MAX_MODULE_ENABLE_WAIT microseconds. + */ +int omap2_cm_wait_idlest(void __iomem *reg, u32 mask, const char *name) +{ + int i = 0; + int ena = 0; + + /* + * 24xx uses 0 to indicate not ready, and 1 to indicate ready. + * 34xx reverses this, just to keep us on our toes + */ + if (cpu_is_omap24xx()) + ena = mask; + else if (cpu_is_omap34xx()) + ena = 0; + else + BUG(); + + /* Wait for lock */ + while (((__raw_readl(reg) & mask) != ena) && + (i++ < MAX_MODULE_ENABLE_WAIT)) + udelay(1); + + if (i < MAX_MODULE_ENABLE_WAIT) + pr_debug("cm: Module associated with clock %s ready after %d " + "loops\n", name, i); + else + pr_err("cm: Module associated with clock %s didn't enable in " + "%d tries\n", name, MAX_MODULE_ENABLE_WAIT); + + return (i < MAX_MODULE_ENABLE_WAIT) ? 1 : 0; +}; + void __init omap2_set_globals_prcm(struct omap_globals *omap2_globals) { prm_base = omap2_globals->prm; diff --git a/arch/arm/plat-omap/include/mach/clock.h b/arch/arm/plat-omap/include/mach/clock.h index f9f65e1ba3f..4b8b0d65cbf 100644 --- a/arch/arm/plat-omap/include/mach/clock.h +++ b/arch/arm/plat-omap/include/mach/clock.h @@ -20,6 +20,8 @@ struct clockdomain; struct clkops { int (*enable)(struct clk *); void (*disable)(struct clk *); + void (*find_idlest)(struct clk *, void __iomem **, u8 *); + void (*find_companion)(struct clk *, void __iomem **, u8 *); }; #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) || \ diff --git a/arch/arm/plat-omap/include/mach/prcm.h b/arch/arm/plat-omap/include/mach/prcm.h index 24ac3c71591..cda2a70397b 100644 --- a/arch/arm/plat-omap/include/mach/prcm.h +++ b/arch/arm/plat-omap/include/mach/prcm.h @@ -25,6 +25,7 @@ u32 omap_prcm_get_reset_sources(void); void omap_prcm_arch_reset(char mode); +int omap2_cm_wait_idlest(void __iomem *reg, u32 mask, const char *name); #endif -- cgit v1.2.3-70-g09d2 From 3dc2197579089c5b74c7fba666c8ccf1a449afb4 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Fri, 24 Jul 2009 19:44:04 -0600 Subject: OMAP2 clock: 2430 I2CHS uses non-standard CM_IDLEST register OMAP2430 I2CHS CM_IDLEST bits are in CM_IDLEST1_CORE, but the CM_*CLKEN bits are in CM_{I,F}CLKEN2_CORE [1]. Fix by implementing a custom clkops .find_idlest function to return the correct slave IDLEST register. ... 1. OMAP2430 Multimedia Device Package-on-Package (POP) Silicon Revision 2.1 (Rev. V) Technical Reference Manual, tables 4-99 and 4-105. Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/clock24xx.c | 37 +++++++++++++++++++++++++++++++++++-- arch/arm/mach-omap2/clock24xx.h | 4 ++-- 2 files changed, 37 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/clock24xx.c b/arch/arm/mach-omap2/clock24xx.c index 44de0271fc2..bc5d3ac6661 100644 --- a/arch/arm/mach-omap2/clock24xx.c +++ b/arch/arm/mach-omap2/clock24xx.c @@ -30,6 +30,7 @@ #include #include +#include #include #include @@ -43,6 +44,18 @@ static const struct clkops clkops_oscck; static const struct clkops clkops_fixed; +static void omap2430_clk_i2chs_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit); + +/* 2430 I2CHS has non-standard IDLEST register */ +static const struct clkops clkops_omap2430_i2chs_wait = { + .enable = omap2_dflt_clk_enable, + .disable = omap2_dflt_clk_disable, + .find_idlest = omap2430_clk_i2chs_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; + #include "clock24xx.h" struct omap_clk { @@ -239,6 +252,26 @@ static void __iomem *prcm_clksrc_ctrl; * Omap24xx specific clock functions *-------------------------------------------------------------------------*/ +/** + * omap2430_clk_i2chs_find_idlest - return CM_IDLEST info for 2430 I2CHS + * @clk: struct clk * being enabled + * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into + * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into + * + * OMAP2430 I2CHS CM_IDLEST bits are in CM_IDLEST1_CORE, but the + * CM_*CLKEN bits are in CM_{I,F}CLKEN2_CORE. This custom function + * passes back the correct CM_IDLEST register address for I2CHS + * modules. No return value. + */ +static void omap2430_clk_i2chs_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit) +{ + *idlest_reg = OMAP_CM_REGADDR(CORE_MOD, CM_IDLEST); + *idlest_bit = clk->enable_bit; +} + + /** * omap2xxx_clk_get_core_rate - return the CORE_CLK rate * @clk: pointer to the combined dpll_ck + core_ck (currently "dpll_ck") @@ -325,8 +358,8 @@ static int omap2_clk_fixed_enable(struct clk *clk) else if (clk == &apll54_ck) cval = OMAP24XX_ST_54M_APLL; - omap2_wait_clock_ready(OMAP_CM_REGADDR(PLL_MOD, CM_IDLEST), cval, - clk->name); + omap2_cm_wait_idlest(OMAP_CM_REGADDR(PLL_MOD, CM_IDLEST), cval, + clk->name); /* * REVISIT: Should we return an error code if omap2_wait_clock_ready() diff --git a/arch/arm/mach-omap2/clock24xx.h b/arch/arm/mach-omap2/clock24xx.h index 458f00cdcbe..d19cf7a7d8d 100644 --- a/arch/arm/mach-omap2/clock24xx.h +++ b/arch/arm/mach-omap2/clock24xx.h @@ -2337,7 +2337,7 @@ static struct clk i2c2_fck = { static struct clk i2chs2_fck = { .name = "i2c_fck", - .ops = &clkops_omap2_dflt_wait, + .ops = &clkops_omap2430_i2chs_wait, .id = 2, .parent = &func_96m_ck, .clkdm_name = "core_l4_clkdm", @@ -2370,7 +2370,7 @@ static struct clk i2c1_fck = { static struct clk i2chs1_fck = { .name = "i2c_fck", - .ops = &clkops_omap2_dflt_wait, + .ops = &clkops_omap2430_i2chs_wait, .id = 1, .parent = &func_96m_ck, .clkdm_name = "core_l4_clkdm", -- cgit v1.2.3-70-g09d2 From 3c82e229f09a6acc8d24dc27c5e0e60b1d7161c2 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Fri, 24 Jul 2009 19:44:06 -0600 Subject: OMAP3 clock: correct module IDLEST bits: SSI; DSS; USBHOST; HSOTGUSB Fix two bugs in the OMAP3 clock tree pertaining to the SSI, DSS, USBHOST, and HSOTGUSB devices. These devices are both interconnect initiators and targets. Without this patch, clk_enable()s on clocks for these modules can be very high latency (potentially up to ~200 milliseconds) and message such as the following are generated: Clock usbhost_48m_fck didn't enable in 100000 tries Two bugs are fixed by this patch. First, OMAP hardware only supports target CM_IDLEST register bits on ES2+ chips and beyond. ES1 chips should not wait for these clocks to enable. So, split the appropriate clocks into ES1 and ES2+ variants, so that kernels running on ES1 devices won't try to wait. Second, the current heuristic in omap2_clk_dflt_find_idlest() will fail for these clocks. It assumes that the CM_IDLEST bit to wait upon is the same as the CM_*CLKEN bit, which is false[1]. Fix by implementing custom clkops .find_idlest function pointers for the appropriate clocks that return the correct slave IDLEST bit shift. This was originally fixed in the linux-omap kernel during 2.6.29 in a slightly different manner[2][3]. In the medium-term future, all of the module IDLEST code will eventually be moved to the omap_hwmod code. Problem reported by Jarkko Nikula : http://marc.info/?l=linux-omap&m=124306184903679&w=2 ... 1. See for example 34xx TRM Revision P Table 4-213 and 4-217 (for the DSS case). 2. http://www.spinics.net/lists/linux-omap/msg05512.html et seq. 3. http://lkml.indiana.edu/hypermail/linux/kernel/0901.3/01498.html Signed-off-by: Paul Walmsley Cc: Jarkko Nikula --- arch/arm/mach-omap2/clock34xx.c | 118 +++++++++++++++++++++++++++++++++++++--- arch/arm/mach-omap2/clock34xx.h | 85 +++++++++++++++++++++++++---- 2 files changed, 185 insertions(+), 18 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c index 1c6480d3ad6..cd7819cc0c9 100644 --- a/arch/arm/mach-omap2/clock34xx.c +++ b/arch/arm/mach-omap2/clock34xx.c @@ -2,7 +2,7 @@ * OMAP3-specific clock framework functions * * Copyright (C) 2007-2008 Texas Instruments, Inc. - * Copyright (C) 2007-2008 Nokia Corporation + * Copyright (C) 2007-2009 Nokia Corporation * * Written by Paul Walmsley * Testing and integration fixes by Jouni Högander @@ -41,6 +41,37 @@ static const struct clkops clkops_noncore_dpll_ops; +static void omap3430es2_clk_ssi_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit); +static void omap3430es2_clk_hsotgusb_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit); +static void omap3430es2_clk_dss_usbhost_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit); + +static const struct clkops clkops_omap3430es2_ssi_wait = { + .enable = omap2_dflt_clk_enable, + .disable = omap2_dflt_clk_disable, + .find_idlest = omap3430es2_clk_ssi_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; + +static const struct clkops clkops_omap3430es2_hsotgusb_wait = { + .enable = omap2_dflt_clk_enable, + .disable = omap2_dflt_clk_disable, + .find_idlest = omap3430es2_clk_hsotgusb_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; + +static const struct clkops clkops_omap3430es2_dss_usbhost_wait = { + .enable = omap2_dflt_clk_enable, + .disable = omap2_dflt_clk_disable, + .find_idlest = omap3430es2_clk_dss_usbhost_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; + #include "clock34xx.h" struct omap_clk { @@ -157,10 +188,13 @@ static struct omap_clk omap34xx_clks[] = { CLK(NULL, "fshostusb_fck", &fshostusb_fck, CK_3430ES1), CLK(NULL, "core_12m_fck", &core_12m_fck, CK_343X), CLK("omap_hdq.0", "fck", &hdq_fck, CK_343X), - CLK(NULL, "ssi_ssr_fck", &ssi_ssr_fck, CK_343X), - CLK(NULL, "ssi_sst_fck", &ssi_sst_fck, CK_343X), + CLK(NULL, "ssi_ssr_fck", &ssi_ssr_fck_3430es1, CK_3430ES1), + CLK(NULL, "ssi_ssr_fck", &ssi_ssr_fck_3430es2, CK_3430ES2), + CLK(NULL, "ssi_sst_fck", &ssi_sst_fck_3430es1, CK_3430ES1), + CLK(NULL, "ssi_sst_fck", &ssi_sst_fck_3430es2, CK_3430ES2), CLK(NULL, "core_l3_ick", &core_l3_ick, CK_343X), - CLK("musb_hdrc", "ick", &hsotgusb_ick, CK_343X), + CLK("musb_hdrc", "ick", &hsotgusb_ick_3430es1, CK_3430ES1), + CLK("musb_hdrc", "ick", &hsotgusb_ick_3430es2, CK_3430ES2), CLK(NULL, "sdrc_ick", &sdrc_ick, CK_343X), CLK(NULL, "gpmc_fck", &gpmc_fck, CK_343X), CLK(NULL, "security_l3_ick", &security_l3_ick, CK_343X), @@ -193,18 +227,21 @@ static struct omap_clk omap34xx_clks[] = { CLK(NULL, "mailboxes_ick", &mailboxes_ick, CK_343X), CLK(NULL, "omapctrl_ick", &omapctrl_ick, CK_343X), CLK(NULL, "ssi_l4_ick", &ssi_l4_ick, CK_343X), - CLK(NULL, "ssi_ick", &ssi_ick, CK_343X), + CLK(NULL, "ssi_ick", &ssi_ick_3430es1, CK_3430ES1), + CLK(NULL, "ssi_ick", &ssi_ick_3430es2, CK_3430ES2), CLK(NULL, "usb_l4_ick", &usb_l4_ick, CK_3430ES1), CLK(NULL, "security_l4_ick2", &security_l4_ick2, CK_343X), CLK(NULL, "aes1_ick", &aes1_ick, CK_343X), CLK("omap_rng", "ick", &rng_ick, CK_343X), CLK(NULL, "sha11_ick", &sha11_ick, CK_343X), CLK(NULL, "des1_ick", &des1_ick, CK_343X), - CLK("omapfb", "dss1_fck", &dss1_alwon_fck, CK_343X), + CLK("omapfb", "dss1_fck", &dss1_alwon_fck_3430es1, CK_3430ES1), + CLK("omapfb", "dss1_fck", &dss1_alwon_fck_3430es2, CK_3430ES2), CLK("omapfb", "tv_fck", &dss_tv_fck, CK_343X), CLK("omapfb", "video_fck", &dss_96m_fck, CK_343X), CLK("omapfb", "dss2_fck", &dss2_alwon_fck, CK_343X), - CLK("omapfb", "ick", &dss_ick, CK_343X), + CLK("omapfb", "ick", &dss_ick_3430es1, CK_3430ES1), + CLK("omapfb", "ick", &dss_ick_3430es2, CK_3430ES2), CLK(NULL, "cam_mclk", &cam_mclk, CK_343X), CLK(NULL, "cam_ick", &cam_ick, CK_343X), CLK(NULL, "csi2_96m_fck", &csi2_96m_fck, CK_343X), @@ -300,6 +337,73 @@ static struct omap_clk omap34xx_clks[] = { */ #define SDRC_MPURATE_LOOPS 96 +/** + * omap3430es2_clk_ssi_find_idlest - return CM_IDLEST info for SSI + * @clk: struct clk * being enabled + * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into + * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into + * + * The OMAP3430ES2 SSI target CM_IDLEST bit is at a different shift + * from the CM_{I,F}CLKEN bit. Pass back the correct info via + * @idlest_reg and @idlest_bit. No return value. + */ +static void omap3430es2_clk_ssi_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit) +{ + u32 r; + + r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); + *idlest_reg = (__force void __iomem *)r; + *idlest_bit = OMAP3430ES2_ST_SSI_IDLE_SHIFT; +} + +/** + * omap3430es2_clk_dss_usbhost_find_idlest - CM_IDLEST info for DSS, USBHOST + * @clk: struct clk * being enabled + * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into + * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into + * + * Some OMAP modules on OMAP3 ES2+ chips have both initiator and + * target IDLEST bits. For our purposes, we are concerned with the + * target IDLEST bits, which exist at a different bit position than + * the *CLKEN bit position for these modules (DSS and USBHOST) (The + * default find_idlest code assumes that they are at the same + * position.) No return value. + */ +static void omap3430es2_clk_dss_usbhost_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit) +{ + u32 r; + + r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); + *idlest_reg = (__force void __iomem *)r; + /* USBHOST_IDLE has same shift */ + *idlest_bit = OMAP3430ES2_ST_DSS_IDLE_SHIFT; +} + +/** + * omap3430es2_clk_hsotgusb_find_idlest - return CM_IDLEST info for HSOTGUSB + * @clk: struct clk * being enabled + * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into + * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into + * + * The OMAP3430ES2 HSOTGUSB target CM_IDLEST bit is at a different + * shift from the CM_{I,F}CLKEN bit. Pass back the correct info via + * @idlest_reg and @idlest_bit. No return value. + */ +static void omap3430es2_clk_hsotgusb_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit) +{ + u32 r; + + r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); + *idlest_reg = (__force void __iomem *)r; + *idlest_bit = OMAP3430ES2_ST_HSOTGUSB_IDLE_SHIFT; +} + /** * omap3_dpll_recalc - recalculate DPLL rate * @clk: DPLL struct clk diff --git a/arch/arm/mach-omap2/clock34xx.h b/arch/arm/mach-omap2/clock34xx.h index e433aec4efd..57cc2725b92 100644 --- a/arch/arm/mach-omap2/clock34xx.h +++ b/arch/arm/mach-omap2/clock34xx.h @@ -1568,7 +1568,7 @@ static const struct clksel ssi_ssr_clksel[] = { { .parent = NULL } }; -static struct clk ssi_ssr_fck = { +static struct clk ssi_ssr_fck_3430es1 = { .name = "ssi_ssr_fck", .ops = &clkops_omap2_dflt, .init = &omap2_init_clksel_parent, @@ -1581,10 +1581,31 @@ static struct clk ssi_ssr_fck = { .recalc = &omap2_clksel_recalc, }; -static struct clk ssi_sst_fck = { +static struct clk ssi_ssr_fck_3430es2 = { + .name = "ssi_ssr_fck", + .ops = &clkops_omap3430es2_ssi_wait, + .init = &omap2_init_clksel_parent, + .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1), + .enable_bit = OMAP3430_EN_SSI_SHIFT, + .clksel_reg = OMAP_CM_REGADDR(CORE_MOD, CM_CLKSEL), + .clksel_mask = OMAP3430_CLKSEL_SSI_MASK, + .clksel = ssi_ssr_clksel, + .clkdm_name = "core_l4_clkdm", + .recalc = &omap2_clksel_recalc, +}; + +static struct clk ssi_sst_fck_3430es1 = { .name = "ssi_sst_fck", .ops = &clkops_null, - .parent = &ssi_ssr_fck, + .parent = &ssi_ssr_fck_3430es1, + .fixed_div = 2, + .recalc = &omap2_fixed_divisor_recalc, +}; + +static struct clk ssi_sst_fck_3430es2 = { + .name = "ssi_sst_fck", + .ops = &clkops_null, + .parent = &ssi_ssr_fck_3430es2, .fixed_div = 2, .recalc = &omap2_fixed_divisor_recalc, }; @@ -1606,9 +1627,19 @@ static struct clk core_l3_ick = { .recalc = &followparent_recalc, }; -static struct clk hsotgusb_ick = { +static struct clk hsotgusb_ick_3430es1 = { .name = "hsotgusb_ick", - .ops = &clkops_omap2_dflt_wait, + .ops = &clkops_omap2_dflt, + .parent = &core_l3_ick, + .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN1), + .enable_bit = OMAP3430_EN_HSOTGUSB_SHIFT, + .clkdm_name = "core_l3_clkdm", + .recalc = &followparent_recalc, +}; + +static struct clk hsotgusb_ick_3430es2 = { + .name = "hsotgusb_ick", + .ops = &clkops_omap3430es2_hsotgusb_wait, .parent = &core_l3_ick, .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN1), .enable_bit = OMAP3430_EN_HSOTGUSB_SHIFT, @@ -1947,7 +1978,7 @@ static struct clk ssi_l4_ick = { .recalc = &followparent_recalc, }; -static struct clk ssi_ick = { +static struct clk ssi_ick_3430es1 = { .name = "ssi_ick", .ops = &clkops_omap2_dflt, .parent = &ssi_l4_ick, @@ -1957,6 +1988,16 @@ static struct clk ssi_ick = { .recalc = &followparent_recalc, }; +static struct clk ssi_ick_3430es2 = { + .name = "ssi_ick", + .ops = &clkops_omap3430es2_ssi_wait, + .parent = &ssi_l4_ick, + .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN1), + .enable_bit = OMAP3430_EN_SSI_SHIFT, + .clkdm_name = "core_l4_clkdm", + .recalc = &followparent_recalc, +}; + /* REVISIT: Technically the TRM claims that this is CORE_CLK based, * but l4_ick makes more sense to me */ @@ -2024,7 +2065,7 @@ static struct clk des1_ick = { }; /* DSS */ -static struct clk dss1_alwon_fck = { +static struct clk dss1_alwon_fck_3430es1 = { .name = "dss1_alwon_fck", .ops = &clkops_omap2_dflt, .parent = &dpll4_m4x2_ck, @@ -2034,6 +2075,16 @@ static struct clk dss1_alwon_fck = { .recalc = &followparent_recalc, }; +static struct clk dss1_alwon_fck_3430es2 = { + .name = "dss1_alwon_fck", + .ops = &clkops_omap3430es2_dss_usbhost_wait, + .parent = &dpll4_m4x2_ck, + .enable_reg = OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_FCLKEN), + .enable_bit = OMAP3430_EN_DSS1_SHIFT, + .clkdm_name = "dss_clkdm", + .recalc = &followparent_recalc, +}; + static struct clk dss_tv_fck = { .name = "dss_tv_fck", .ops = &clkops_omap2_dflt, @@ -2067,7 +2118,7 @@ static struct clk dss2_alwon_fck = { .recalc = &followparent_recalc, }; -static struct clk dss_ick = { +static struct clk dss_ick_3430es1 = { /* Handles both L3 and L4 clocks */ .name = "dss_ick", .ops = &clkops_omap2_dflt, @@ -2079,6 +2130,18 @@ static struct clk dss_ick = { .recalc = &followparent_recalc, }; +static struct clk dss_ick_3430es2 = { + /* Handles both L3 and L4 clocks */ + .name = "dss_ick", + .ops = &clkops_omap3430es2_dss_usbhost_wait, + .parent = &l4_ick, + .init = &omap2_init_clk_clkdm, + .enable_reg = OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_ICLKEN), + .enable_bit = OMAP3430_CM_ICLKEN_DSS_EN_DSS_SHIFT, + .clkdm_name = "dss_clkdm", + .recalc = &followparent_recalc, +}; + /* CAM */ static struct clk cam_mclk = { @@ -2118,7 +2181,7 @@ static struct clk csi2_96m_fck = { static struct clk usbhost_120m_fck = { .name = "usbhost_120m_fck", - .ops = &clkops_omap2_dflt_wait, + .ops = &clkops_omap2_dflt, .parent = &dpll5_m2_ck, .init = &omap2_init_clk_clkdm, .enable_reg = OMAP_CM_REGADDR(OMAP3430ES2_USBHOST_MOD, CM_FCLKEN), @@ -2129,7 +2192,7 @@ static struct clk usbhost_120m_fck = { static struct clk usbhost_48m_fck = { .name = "usbhost_48m_fck", - .ops = &clkops_omap2_dflt_wait, + .ops = &clkops_omap3430es2_dss_usbhost_wait, .parent = &omap_48m_fck, .init = &omap2_init_clk_clkdm, .enable_reg = OMAP_CM_REGADDR(OMAP3430ES2_USBHOST_MOD, CM_FCLKEN), @@ -2141,7 +2204,7 @@ static struct clk usbhost_48m_fck = { static struct clk usbhost_ick = { /* Handles both L3 and L4 clocks */ .name = "usbhost_ick", - .ops = &clkops_omap2_dflt_wait, + .ops = &clkops_omap3430es2_dss_usbhost_wait, .parent = &l4_ick, .init = &omap2_init_clk_clkdm, .enable_reg = OMAP_CM_REGADDR(OMAP3430ES2_USBHOST_MOD, CM_ICLKEN), -- cgit v1.2.3-70-g09d2 From 505d62d073b528859b43bfb463a6ceaf3581469e Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Sun, 26 Jul 2009 14:57:54 +0200 Subject: avr32/lib: fix unaligned memcpy() memcpy(p, unaligned, 4..) returns (p + num_of_unaligned_by_copied) instead of p because p is not preserved in the unaligned case. Noticed by Herbert Xu's superior parameter recycling coding technique which let the md4 self-test fail on avr32. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Haavard Skinnemoen --- arch/avr32/lib/memcpy.S | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/avr32/lib/memcpy.S b/arch/avr32/lib/memcpy.S index 0abb26142b6..93e74b6fcdb 100644 --- a/arch/avr32/lib/memcpy.S +++ b/arch/avr32/lib/memcpy.S @@ -24,8 +24,8 @@ memcpy: brne 1f /* At this point, "from" is word-aligned */ -2: sub r10, 4 - mov r9, r12 +2: mov r9, r12 +5: sub r10, 4 brlt 4f 3: ld.w r8, r11++ @@ -59,4 +59,13 @@ memcpy: st.b r12++, r8 ld.ub r8, r11++ st.b r12++, r8 - rjmp 2b + mov r8, r12 + add pc, pc, r9 + sub r8, 1 + nop + sub r8, 1 + nop + sub r8, 1 + nop + mov r9, r8 + rjmp 5b -- cgit v1.2.3-70-g09d2 From 251ab1a37d9ba810593d5fbf2482bc4ba773fab2 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Sun, 26 Jul 2009 14:58:34 +0200 Subject: avr32/lib: fix unaligned memcpy where len < 4 in case of memcpy(p, unaligned, 1..3) we get 1..3 as the return value instead of p Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Haavard Skinnemoen --- arch/avr32/lib/memcpy.S | 1 + 1 file changed, 1 insertion(+) (limited to 'arch') diff --git a/arch/avr32/lib/memcpy.S b/arch/avr32/lib/memcpy.S index 93e74b6fcdb..c2ca49d705a 100644 --- a/arch/avr32/lib/memcpy.S +++ b/arch/avr32/lib/memcpy.S @@ -49,6 +49,7 @@ memcpy: /* Handle unaligned "from" pointer */ 1: sub r10, 4 + movlt r9, r12 brlt 4b add r10, r9 lsl r9, 2 -- cgit v1.2.3-70-g09d2 From 92c548cd35d50df398f442b07021150094578460 Mon Sep 17 00:00:00 2001 From: Ben Nizette Date: Mon, 20 Apr 2009 12:36:53 +1000 Subject: favr32: improve touchscreen response The ezLCD+101 board (to which an favr-32 is fitted) has a long, unshielded, nasty lead between the touch panel and the ads7843 touch controller. In order to get satisfactory response then, we need to employ every noise-reduction trick in the driver's arsenal. After extensive fiddling I've found some good settings: 1) We keep vref on all the time to dramatically reduce settling times (at the cost of a tiny increase in power consumption). 2) Despite 1 the settling time is still non-zero. 500uS is plenty of time for the signals to settle 3) Despite 1 and 2 there's still a little bit of noise around. By setting a pen recheck delay we make the panel feel less touchy and twitchy. Someone with more time and patience myself might be able to tune this numbers further but these settings are now perfectly acceptable for normal use. Tested on ezLCD+101 though should only improve response on other ezLCD+/ favr-32 boards too. Signed-off-by: Ben Nizette Signed-off-by: Haavard Skinnemoen --- arch/avr32/boards/favr-32/setup.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch') diff --git a/arch/avr32/boards/favr-32/setup.c b/arch/avr32/boards/favr-32/setup.c index 46c9b0a224c..75f19f47fb2 100644 --- a/arch/avr32/boards/favr-32/setup.c +++ b/arch/avr32/boards/favr-32/setup.c @@ -72,6 +72,10 @@ static struct ads7846_platform_data ads7843_data = { .debounce_max = 20, .debounce_rep = 4, .debounce_tol = 5, + + .keep_vref_on = true, + .settle_delay_usecs = 500, + .penirq_recheck_delay_usecs = 100, }; static struct spi_board_info __initdata spi1_board_info[] = { -- cgit v1.2.3-70-g09d2 From 9a926d86b29a25456f1dd8c9df938e151b1c3978 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 27 Jul 2009 18:10:28 -0700 Subject: sparc64: Sign extend length arg to truncate syscalls when compat. The first thing sys_truncate() and sys_ftruncate() do is sign extend the unsigned length arg to a signed type. Thanks to Benjamin Herrenschmidt for the tip. Signed-off-by: David S. Miller --- arch/sparc/kernel/sys32.S | 2 ++ arch/sparc/kernel/systbls_64.S | 4 ++-- 2 files changed, 4 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S index f061c4dda9e..577f8fab8b6 100644 --- a/arch/sparc/kernel/sys32.S +++ b/arch/sparc/kernel/sys32.S @@ -138,6 +138,8 @@ SIGN2(sys32_splice, sys_splice, %o0, %o1) SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) SIGN2(sys32_tee, sys_tee, %o0, %o1) SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) +SIGN1(sys32_truncate, sys_truncate, %o1) +SIGN1(sys32_ftruncate, sys_ftruncate, %o1) .globl sys32_mmap2 sys32_mmap2: diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index 6b3ee88e253..2ee7250ba7a 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -43,8 +43,8 @@ sys_call_table32: /*110*/ .word sys_setresgid, sys_getresgid, sys_setregid, sys_nis_syscall, sys_nis_syscall .word sys32_getgroups, compat_sys_gettimeofday, sys32_getrusage, sys_nis_syscall, sys_getcwd /*120*/ .word compat_sys_readv, compat_sys_writev, compat_sys_settimeofday, sys_fchown16, sys_fchmod - .word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, sys_truncate -/*130*/ .word sys_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall + .word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, sys32_truncate +/*130*/ .word sys32_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall .word sys_nis_syscall, sys32_mkdir, sys_rmdir, compat_sys_utimes, compat_sys_stat64 /*140*/ .word sys32_sendfile64, sys_nis_syscall, sys32_futex, sys_gettid, compat_sys_getrlimit .word compat_sys_setrlimit, sys_pivot_root, sys32_prctl, sys_pciconfig_read, sys_pciconfig_write -- cgit v1.2.3-70-g09d2 From ff46a474ca2566d79e8d7454442b56d82bce37c1 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 31 Jul 2009 15:42:09 +0200 Subject: mx3: Fix double pin allocation in pcm037_eet.c SPI pins are now allocated in pcm037.c, remove them from EET. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Sascha Hauer --- arch/arm/mach-mx3/pcm037_eet.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-mx3/pcm037_eet.c b/arch/arm/mach-mx3/pcm037_eet.c index fe52fb1bb8b..8d386000fc4 100644 --- a/arch/arm/mach-mx3/pcm037_eet.c +++ b/arch/arm/mach-mx3/pcm037_eet.c @@ -24,15 +24,6 @@ #include "devices.h" static unsigned int pcm037_eet_pins[] = { - /* SPI #1 */ - MX31_PIN_CSPI1_MISO__MISO, - MX31_PIN_CSPI1_MOSI__MOSI, - MX31_PIN_CSPI1_SCLK__SCLK, - MX31_PIN_CSPI1_SPI_RDY__SPI_RDY, - MX31_PIN_CSPI1_SS0__SS0, - MX31_PIN_CSPI1_SS1__SS1, - MX31_PIN_CSPI1_SS2__SS2, - /* Reserve and hardwire GPIO 57 high - S6E63D6 chipselect */ IOMUX_MODE(MX31_PIN_KEY_COL7, IOMUX_CONFIG_GPIO), /* GPIO keys */ -- cgit v1.2.3-70-g09d2 From a923c28fc538a4161b15e9b5d7d48248d73d3e6f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 2 Aug 2009 19:17:15 -0700 Subject: sparc: Use page_fault_out_of_memory() for VM_FAULT_OOM. As noted by Nick Piggin. Signed-off-by: David S. Miller --- arch/sparc/mm/fault_32.c | 7 ++++--- arch/sparc/mm/fault_64.c | 7 ++++--- 2 files changed, 8 insertions(+), 6 deletions(-) (limited to 'arch') diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c index a5e30c642ee..b99f81c4906 100644 --- a/arch/sparc/mm/fault_32.c +++ b/arch/sparc/mm/fault_32.c @@ -319,9 +319,10 @@ no_context: */ out_of_memory: up_read(&mm->mmap_sem); - printk("VM: killing process %s\n", tsk->comm); - if (from_user) - do_group_exit(SIGKILL); + if (from_user) { + pagefault_out_of_memory(); + return; + } goto no_context; do_sigbus: diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c index e5620b27c8b..43b0da96a4f 100644 --- a/arch/sparc/mm/fault_64.c +++ b/arch/sparc/mm/fault_64.c @@ -447,9 +447,10 @@ handle_kernel_fault: out_of_memory: insn = get_fault_insn(regs, insn); up_read(&mm->mmap_sem); - printk("VM: killing process %s\n", current->comm); - if (!(regs->tstate & TSTATE_PRIV)) - do_group_exit(SIGKILL); + if (!(regs->tstate & TSTATE_PRIV)) { + pagefault_out_of_memory(); + return; + } goto handle_kernel_fault; intr_or_no_mm: -- cgit v1.2.3-70-g09d2 From b37c45b8c27c049dc44673e40fd63820fd9a9d91 Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Wed, 5 Aug 2009 16:53:24 +0300 Subject: OMAP: GPIO: Fix incorrect gpio_get logic for output GPIOs gpio_get() should return DATAIN register value when the GPIO is configured as input whereas it should return DATAOUT register value when the GPIO is configured as output. Now /sys/kernel/debug/gpio shows proper values for output GPIOs Signed-off-by: Roger Quadros Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/gpio.c | 121 ++++++++++++++++++++++++++++++++++------------ 1 file changed, 89 insertions(+), 32 deletions(-) (limited to 'arch') diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index 26b387c1242..9c16ca8d293 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -476,14 +476,12 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable) __raw_writel(l, reg); } -static int __omap_get_gpio_datain(int gpio) +static int _get_gpio_datain(struct gpio_bank *bank, int gpio) { - struct gpio_bank *bank; void __iomem *reg; if (check_gpio(gpio) < 0) return -EINVAL; - bank = get_gpio_bank(gpio); reg = bank->base; switch (bank->method) { #ifdef CONFIG_ARCH_OMAP1 @@ -524,6 +522,53 @@ static int __omap_get_gpio_datain(int gpio) & (1 << get_gpio_index(gpio))) != 0; } +static int _get_gpio_dataout(struct gpio_bank *bank, int gpio) +{ + void __iomem *reg; + + if (check_gpio(gpio) < 0) + return -EINVAL; + reg = bank->base; + + switch (bank->method) { +#ifdef CONFIG_ARCH_OMAP1 + case METHOD_MPUIO: + reg += OMAP_MPUIO_OUTPUT; + break; +#endif +#ifdef CONFIG_ARCH_OMAP15XX + case METHOD_GPIO_1510: + reg += OMAP1510_GPIO_DATA_OUTPUT; + break; +#endif +#ifdef CONFIG_ARCH_OMAP16XX + case METHOD_GPIO_1610: + reg += OMAP1610_GPIO_DATAOUT; + break; +#endif +#ifdef CONFIG_ARCH_OMAP730 + case METHOD_GPIO_730: + reg += OMAP730_GPIO_DATA_OUTPUT; + break; +#endif +#ifdef CONFIG_ARCH_OMAP850 + case METHOD_GPIO_850: + reg += OMAP850_GPIO_DATA_OUTPUT; + break; +#endif +#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \ + defined(CONFIG_ARCH_OMAP4) + case METHOD_GPIO_24XX: + reg += OMAP24XX_GPIO_DATAOUT; + break; +#endif + default: + return -EINVAL; + } + + return (__raw_readl(reg) & (1 << get_gpio_index(gpio))) != 0; +} + #define MOD_REG_BIT(reg, bit_mask, set) \ do { \ int l = __raw_readl(base + reg); \ @@ -1350,9 +1395,49 @@ static int gpio_input(struct gpio_chip *chip, unsigned offset) return 0; } +static int gpio_is_input(struct gpio_bank *bank, int mask) +{ + void __iomem *reg = bank->base; + + switch (bank->method) { + case METHOD_MPUIO: + reg += OMAP_MPUIO_IO_CNTL; + break; + case METHOD_GPIO_1510: + reg += OMAP1510_GPIO_DIR_CONTROL; + break; + case METHOD_GPIO_1610: + reg += OMAP1610_GPIO_DIRECTION; + break; + case METHOD_GPIO_730: + reg += OMAP730_GPIO_DIR_CONTROL; + break; + case METHOD_GPIO_850: + reg += OMAP850_GPIO_DIR_CONTROL; + break; + case METHOD_GPIO_24XX: + reg += OMAP24XX_GPIO_OE; + break; + } + return __raw_readl(reg) & mask; +} + static int gpio_get(struct gpio_chip *chip, unsigned offset) { - return __omap_get_gpio_datain(chip->base + offset); + struct gpio_bank *bank; + void __iomem *reg; + int gpio; + u32 mask; + + gpio = chip->base + offset; + bank = get_gpio_bank(gpio); + reg = bank->base; + mask = 1 << get_gpio_index(gpio); + + if (gpio_is_input(bank, mask)) + return _get_gpio_datain(bank, gpio); + else + return _get_gpio_dataout(bank, gpio); } static int gpio_output(struct gpio_chip *chip, unsigned offset, int value) @@ -1886,34 +1971,6 @@ arch_initcall(omap_gpio_sysinit); #include #include -static int gpio_is_input(struct gpio_bank *bank, int mask) -{ - void __iomem *reg = bank->base; - - switch (bank->method) { - case METHOD_MPUIO: - reg += OMAP_MPUIO_IO_CNTL; - break; - case METHOD_GPIO_1510: - reg += OMAP1510_GPIO_DIR_CONTROL; - break; - case METHOD_GPIO_1610: - reg += OMAP1610_GPIO_DIRECTION; - break; - case METHOD_GPIO_730: - reg += OMAP730_GPIO_DIR_CONTROL; - break; - case METHOD_GPIO_850: - reg += OMAP850_GPIO_DIR_CONTROL; - break; - case METHOD_GPIO_24XX: - reg += OMAP24XX_GPIO_OE; - break; - } - return __raw_readl(reg) & mask; -} - - static int dbg_gpio_show(struct seq_file *s, void *unused) { unsigned i, j, gpio; -- cgit v1.2.3-70-g09d2 From 7cc515f74d2871daff106a17714bfd16bcb045ca Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Wed, 10 Jun 2009 09:02:25 -0700 Subject: OMAP2/3: PM: make PM __init calls static Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/pm.h | 3 --- arch/arm/mach-omap2/pm24xx.c | 2 +- arch/arm/mach-omap2/pm34xx.c | 2 +- 3 files changed, 2 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h index f7b3baf7667..21201cd4117 100644 --- a/arch/arm/mach-omap2/pm.h +++ b/arch/arm/mach-omap2/pm.h @@ -11,9 +11,6 @@ #ifndef __ARCH_ARM_MACH_OMAP2_PM_H #define __ARCH_ARM_MACH_OMAP2_PM_H -extern int omap2_pm_init(void); -extern int omap3_pm_init(void); - #ifdef CONFIG_PM_DEBUG extern void omap2_pm_dump(int mode, int resume, unsigned int us); extern int omap2_pm_debug; diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c index db1025562fb..528dbdc26e2 100644 --- a/arch/arm/mach-omap2/pm24xx.c +++ b/arch/arm/mach-omap2/pm24xx.c @@ -470,7 +470,7 @@ static void __init prcm_setup_regs(void) WKUP_MOD, PM_WKEN); } -int __init omap2_pm_init(void) +static int __init omap2_pm_init(void) { u32 l; diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 841d4c5ed8b..765cdc0cd7a 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -652,7 +652,7 @@ static int __init clkdms_setup(struct clockdomain *clkdm) return 0; } -int __init omap3_pm_init(void) +static int __init omap3_pm_init(void) { struct power_state *pwrst, *tmp; int ret; -- cgit v1.2.3-70-g09d2 From 364dd47466ff7a7749bf037df4bf3b7aedbfe6f4 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Tue, 9 Jun 2009 11:45:30 -0700 Subject: OMAP3: PM: CM_REGADDR macros using wrong name Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/cm.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h index 1d3c93bf86d..f3c91a1ca39 100644 --- a/arch/arm/mach-omap2/cm.h +++ b/arch/arm/mach-omap2/cm.h @@ -29,9 +29,9 @@ * These registers appear once per CM module. */ -#define OMAP3430_CM_REVISION OMAP_CM_REGADDR(OCP_MOD, 0x0000) -#define OMAP3430_CM_SYSCONFIG OMAP_CM_REGADDR(OCP_MOD, 0x0010) -#define OMAP3430_CM_POLCTRL OMAP_CM_REGADDR(OCP_MOD, 0x009c) +#define OMAP3430_CM_REVISION OMAP34XX_CM_REGADDR(OCP_MOD, 0x0000) +#define OMAP3430_CM_SYSCONFIG OMAP34XX_CM_REGADDR(OCP_MOD, 0x0010) +#define OMAP3430_CM_POLCTRL OMAP34XX_CM_REGADDR(OCP_MOD, 0x009c) #define OMAP3_CM_CLKOUT_CTRL_OFFSET 0x0070 #define OMAP3430_CM_CLKOUT_CTRL OMAP_CM_REGADDR(OMAP3430_CCR_MOD, 0x0070) -- cgit v1.2.3-70-g09d2 From 3a6667acf916b3e32be4682196882fc2ed0ec23e Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 27 Apr 2009 07:50:23 -0700 Subject: OMAP3: PM: Ensure PRCM interrupts are cleared at boot Any pending PRCM interrupts can prevent retention. Ensure they are cleared during boot. Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/pm34xx.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 765cdc0cd7a..cc83dfc39a8 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -613,6 +613,9 @@ static void __init prcm_setup_regs(void) /* Clear any pending PRCM interrupts */ prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + /* Clear any pending PRCM interrupts */ + prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + omap3_iva_idle(); omap3_d2d_idle(); } -- cgit v1.2.3-70-g09d2 From 3a07ae30a0bfa93ff2b242acf670c6d8e2de35de Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 27 Apr 2009 16:14:54 -0700 Subject: OMAP3: PM: Clear pending PRCM reset flags on init Any pending reset flags can prevent retention. Ensure they are all cleared during boot. Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/pm34xx.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index cc83dfc39a8..1422e931f57 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -613,6 +613,15 @@ static void __init prcm_setup_regs(void) /* Clear any pending PRCM interrupts */ prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + /* Clear any pending 'reset' flags */ + prm_write_mod_reg(0xffffffff, MPU_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, CORE_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, OMAP3430_PER_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, OMAP3430_EMU_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, OMAP3430_NEON_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, OMAP3430_DSS_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, OMAP3430ES2_USBHOST_MOD, RM_RSTST); + /* Clear any pending PRCM interrupts */ prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); -- cgit v1.2.3-70-g09d2 From 040fed059c34da5115790609f1a038fc9aec88d1 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Tue, 5 May 2009 16:34:25 -0700 Subject: OMAP3: PM: prevent module wakeups from waking IVA2 By default, prevent functional wakeups from inside a module from waking up the IVA2. Let DSP Bridge code handle this when loaded. Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/pm34xx.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 1422e931f57..c813a081c3c 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -613,6 +613,12 @@ static void __init prcm_setup_regs(void) /* Clear any pending PRCM interrupts */ prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + /* Don't attach IVA interrupts */ + prm_write_mod_reg(0, WKUP_MOD, OMAP3430_PM_IVAGRPSEL); + prm_write_mod_reg(0, CORE_MOD, OMAP3430_PM_IVAGRPSEL1); + prm_write_mod_reg(0, CORE_MOD, OMAP3430ES2_PM_IVAGRPSEL3); + prm_write_mod_reg(0, OMAP3430_PER_MOD, OMAP3430_PM_IVAGRPSEL); + /* Clear any pending 'reset' flags */ prm_write_mod_reg(0xffffffff, MPU_MOD, RM_RSTST); prm_write_mod_reg(0xffffffff, CORE_MOD, RM_RSTST); -- cgit v1.2.3-70-g09d2 From 10f90ed2d727c0f344d910c02c9726d0481d9b00 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Wed, 24 Jun 2009 11:39:18 -0700 Subject: OMAP3: PM: Do not build suspend code if SUSPEND is not enabled Signed-off-by: Jouni Hogander Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/pm34xx.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index c813a081c3c..528f725722a 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -39,7 +39,9 @@ struct power_state { struct powerdomain *pwrdm; u32 next_state; +#ifdef CONFIG_SUSPEND u32 saved_state; +#endif struct list_head node; }; @@ -293,6 +295,7 @@ out: local_irq_enable(); } +#ifdef CONFIG_SUSPEND static int omap3_pm_prepare(void) { disable_hlt(); @@ -366,6 +369,7 @@ static struct platform_suspend_ops omap_pm_ops = { .finish = omap3_pm_finish, .valid = suspend_valid_only_mem, }; +#endif /* CONFIG_SUSPEND */ /** @@ -710,7 +714,9 @@ static int __init omap3_pm_init(void) _omap_sram_idle = omap_sram_push(omap34xx_cpu_suspend, omap34xx_cpu_suspend_sz); +#ifdef CONFIG_SUSPEND suspend_set_ops(&omap_pm_ops); +#endif /* CONFIG_SUSPEND */ pm_idle = omap3_pm_idle; -- cgit v1.2.3-70-g09d2 From 4789998a30d845d94a7595076d1392ffd5a9d39e Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Wed, 24 Jun 2009 10:32:03 -0700 Subject: OMAP4: UART: cleanup special case IRQ handling Streamline the OMAP4 special IRQ assignments by putting inside normal init loop instead of having a separate loop. Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/serial.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index b094c15bfe4..c82ec95cd79 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -496,10 +496,6 @@ void __init omap_serial_init(void) if (info == NULL) return; - if (cpu_is_omap44xx()) { - for (i = 0; i < OMAP_MAX_NR_PORTS; i++) - serial_platform_data[i].irq += 32; - } for (i = 0; i < OMAP_MAX_NR_PORTS; i++) { struct plat_serial8250_port *p = serial_platform_data + i; @@ -533,6 +529,9 @@ void __init omap_serial_init(void) uart->p = p; list_add(&uart->node, &uart_list); + if (cpu_is_omap44xx()) + p->irq += 32; + omap_uart_enable_clocks(uart); omap_uart_reset(uart); omap_uart_idle_init(uart); -- cgit v1.2.3-70-g09d2 From 2466211e5debd205fc550d871fe0ab9b9a6d02ed Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Thu, 5 Mar 2009 16:32:23 +0200 Subject: OMAP3: Fixed crash bug with serial + suspend It was possible for an unhandled interrupt to occur if there was incoming serial traffic during wakeup from suspend. This was caused by the code in arch-arm/mach-omap2/serial.c keeping interrupt enabled all the time, but not acking its interrupts. Applies on top of PM branch. Use the PM begin/end hooks to ensure that the "serial idle" interrupts are disabled during the suspend path. Also, since begin/end hooks are now used, use the suspend_state that is passed in the begin hook instead of the enter hook as per the platform_suspend_ops docs. Signed-off-by: Tero Kristo Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/pm34xx.c | 23 +++++++++++++++++++++-- arch/arm/mach-omap2/serial.c | 14 ++++++++++++++ arch/arm/plat-omap/include/mach/serial.h | 1 + 3 files changed, 36 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 528f725722a..b07efb26de1 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -296,6 +296,8 @@ out: } #ifdef CONFIG_SUSPEND +static suspend_state_t suspend_state; + static int omap3_pm_prepare(void) { disable_hlt(); @@ -342,11 +344,11 @@ restore: return ret; } -static int omap3_pm_enter(suspend_state_t state) +static int omap3_pm_enter(suspend_state_t unused) { int ret = 0; - switch (state) { + switch (suspend_state) { case PM_SUSPEND_STANDBY: case PM_SUSPEND_MEM: ret = omap3_pm_suspend(); @@ -363,7 +365,24 @@ static void omap3_pm_finish(void) enable_hlt(); } +/* Hooks to enable / disable UART interrupts during suspend */ +static int omap3_pm_begin(suspend_state_t state) +{ + suspend_state = state; + omap_uart_enable_irqs(0); + return 0; +} + +static void omap3_pm_end(void) +{ + suspend_state = PM_SUSPEND_ON; + omap_uart_enable_irqs(1); + return; +} + static struct platform_suspend_ops omap_pm_ops = { + .begin = omap3_pm_begin, + .end = omap3_pm_end, .prepare = omap3_pm_prepare, .enter = omap3_pm_enter, .finish = omap3_pm_finish, diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index c82ec95cd79..5352d05b42d 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -435,6 +435,20 @@ static void omap_uart_idle_init(struct omap_uart_state *uart) WARN_ON(ret); } +void omap_uart_enable_irqs(int enable) +{ + int ret; + struct omap_uart_state *uart; + + list_for_each_entry(uart, &uart_list, node) { + if (enable) + ret = request_irq(uart->p->irq, omap_uart_interrupt, + IRQF_SHARED, "serial idle", (void *)uart); + else + free_irq(uart->p->irq, (void *)uart); + } +} + static ssize_t sleep_timeout_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) diff --git a/arch/arm/plat-omap/include/mach/serial.h b/arch/arm/plat-omap/include/mach/serial.h index 13abd02d152..def0529c75e 100644 --- a/arch/arm/plat-omap/include/mach/serial.h +++ b/arch/arm/plat-omap/include/mach/serial.h @@ -59,6 +59,7 @@ extern void omap_uart_check_wakeup(void); extern void omap_uart_prepare_suspend(void); extern void omap_uart_prepare_idle(int num); extern void omap_uart_resume_idle(int num); +extern void omap_uart_enable_irqs(int enable); #endif #endif -- cgit v1.2.3-70-g09d2 From fd455ea899b5a14a8cdd276e15f3b47696526f92 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 27 Apr 2009 12:27:36 -0700 Subject: OMAP2/3/4: UART: Allow per-UART disabling wakeup for serial ports This patch causes the OMAP uarts to honor the sysfs power/wakeup file for IOPAD wakeups. Before the OMAP was always woken up from off mode on a rs232 signal change. This patch also creates a different platform device for each serial port so that the wakeup properties can be control per port. By default, IOPAD wakeups are enabled for each UART. To disable, # echo disabled > /sys/devices/platform/serial8250.0/power/wakeup Where serial8250.0 can be replaced by .1, or .2 to control the other ports. Original idea and original patch from Russ Dill Cc: Russ Dill Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/serial.c | 174 ++++++++++++++++++++++++++++--------------- 1 file changed, 116 insertions(+), 58 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 5352d05b42d..6f35a7e4893 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -54,6 +54,7 @@ struct omap_uart_state { struct plat_serial8250_port *p; struct list_head node; + struct platform_device pdev; #if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) int context_valid; @@ -68,10 +69,9 @@ struct omap_uart_state { #endif }; -static struct omap_uart_state omap_uart[OMAP_MAX_NR_PORTS]; static LIST_HEAD(uart_list); -static struct plat_serial8250_port serial_platform_data[] = { +static struct plat_serial8250_port serial_platform_data0[] = { { .membase = IO_ADDRESS(OMAP_UART1_BASE), .mapbase = OMAP_UART1_BASE, @@ -81,6 +81,12 @@ static struct plat_serial8250_port serial_platform_data[] = { .regshift = 2, .uartclk = OMAP24XX_BASE_BAUD * 16, }, { + .flags = 0 + } +}; + +static struct plat_serial8250_port serial_platform_data1[] = { + { .membase = IO_ADDRESS(OMAP_UART2_BASE), .mapbase = OMAP_UART2_BASE, .irq = 73, @@ -89,6 +95,12 @@ static struct plat_serial8250_port serial_platform_data[] = { .regshift = 2, .uartclk = OMAP24XX_BASE_BAUD * 16, }, { + .flags = 0 + } +}; + +static struct plat_serial8250_port serial_platform_data2[] = { + { .membase = IO_ADDRESS(OMAP_UART3_BASE), .mapbase = OMAP_UART3_BASE, .irq = 74, @@ -217,6 +229,40 @@ static inline void omap_uart_disable_clocks(struct omap_uart_state *uart) clk_disable(uart->fck); } +static void omap_uart_enable_wakeup(struct omap_uart_state *uart) +{ + /* Set wake-enable bit */ + if (uart->wk_en && uart->wk_mask) { + u32 v = __raw_readl(uart->wk_en); + v |= uart->wk_mask; + __raw_writel(v, uart->wk_en); + } + + /* Ensure IOPAD wake-enables are set */ + if (cpu_is_omap34xx() && uart->padconf) { + u16 v = omap_ctrl_readw(uart->padconf); + v |= OMAP3_PADCONF_WAKEUPENABLE0; + omap_ctrl_writew(v, uart->padconf); + } +} + +static void omap_uart_disable_wakeup(struct omap_uart_state *uart) +{ + /* Clear wake-enable bit */ + if (uart->wk_en && uart->wk_mask) { + u32 v = __raw_readl(uart->wk_en); + v &= ~uart->wk_mask; + __raw_writel(v, uart->wk_en); + } + + /* Ensure IOPAD wake-enables are cleared */ + if (cpu_is_omap34xx() && uart->padconf) { + u16 v = omap_ctrl_readw(uart->padconf); + v &= ~OMAP3_PADCONF_WAKEUPENABLE0; + omap_ctrl_writew(v, uart->padconf); + } +} + static void omap_uart_smart_idle_enable(struct omap_uart_state *uart, int enable) { @@ -246,6 +292,11 @@ static void omap_uart_block_sleep(struct omap_uart_state *uart) static void omap_uart_allow_sleep(struct omap_uart_state *uart) { + if (device_may_wakeup(&uart->pdev.dev)) + omap_uart_enable_wakeup(uart); + else + omap_uart_disable_wakeup(uart); + if (!uart->clocked) return; @@ -292,7 +343,6 @@ void omap_uart_resume_idle(int num) /* Check for normal UART wakeup */ if (__raw_readl(uart->wk_st) & uart->wk_mask) omap_uart_block_sleep(uart); - return; } } @@ -346,16 +396,13 @@ static irqreturn_t omap_uart_interrupt(int irq, void *dev_id) return IRQ_NONE; } -static u32 sleep_timeout = DEFAULT_TIMEOUT; - static void omap_uart_idle_init(struct omap_uart_state *uart) { - u32 v; struct plat_serial8250_port *p = uart->p; int ret; uart->can_sleep = 0; - uart->timeout = sleep_timeout; + uart->timeout = DEFAULT_TIMEOUT; setup_timer(&uart->timer, omap_uart_idle_timer, (unsigned long) uart); mod_timer(&uart->timer, jiffies + uart->timeout); @@ -413,22 +460,6 @@ static void omap_uart_idle_init(struct omap_uart_state *uart) uart->padconf = 0; } - /* Set wake-enable bit */ - if (uart->wk_en && uart->wk_mask) { - v = __raw_readl(uart->wk_en); - v |= uart->wk_mask; - __raw_writel(v, uart->wk_en); - } - - /* Ensure IOPAD wake-enables are set */ - if (cpu_is_omap34xx() && uart->padconf) { - u16 v; - - v = omap_ctrl_readw(uart->padconf); - v |= OMAP3_PADCONF_WAKEUPENABLE0; - omap_ctrl_writew(v, uart->padconf); - } - p->flags |= UPF_SHARE_IRQ; ret = request_irq(p->irq, omap_uart_interrupt, IRQF_SHARED, "serial idle", (void *)uart); @@ -449,54 +480,81 @@ void omap_uart_enable_irqs(int enable) } } -static ssize_t sleep_timeout_show(struct kobject *kobj, - struct kobj_attribute *attr, +static ssize_t sleep_timeout_show(struct device *dev, + struct device_attribute *attr, char *buf) { - return sprintf(buf, "%u\n", sleep_timeout / HZ); + struct platform_device *pdev = container_of(dev, + struct platform_device, dev); + struct omap_uart_state *uart = container_of(pdev, + struct omap_uart_state, pdev); + + return sprintf(buf, "%u\n", uart->timeout / HZ); } -static ssize_t sleep_timeout_store(struct kobject *kobj, - struct kobj_attribute *attr, +static ssize_t sleep_timeout_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t n) { - struct omap_uart_state *uart; + struct platform_device *pdev = container_of(dev, + struct platform_device, dev); + struct omap_uart_state *uart = container_of(pdev, + struct omap_uart_state, pdev); unsigned int value; if (sscanf(buf, "%u", &value) != 1) { printk(KERN_ERR "sleep_timeout_store: Invalid value\n"); return -EINVAL; } - sleep_timeout = value * HZ; - list_for_each_entry(uart, &uart_list, node) { - uart->timeout = sleep_timeout; - if (uart->timeout) - mod_timer(&uart->timer, jiffies + uart->timeout); - else - /* A zero value means disable timeout feature */ - omap_uart_block_sleep(uart); - } + + uart->timeout = value * HZ; + if (uart->timeout) + mod_timer(&uart->timer, jiffies + uart->timeout); + else + /* A zero value means disable timeout feature */ + omap_uart_block_sleep(uart); + return n; } -static struct kobj_attribute sleep_timeout_attr = - __ATTR(sleep_timeout, 0644, sleep_timeout_show, sleep_timeout_store); - +DEVICE_ATTR(sleep_timeout, 0644, sleep_timeout_show, sleep_timeout_store); +#define DEV_CREATE_FILE(dev, attr) WARN_ON(device_create_file(dev, attr)) #else static inline void omap_uart_idle_init(struct omap_uart_state *uart) {} +#define DEV_CREATE_FILE(dev, attr) #endif /* CONFIG_PM */ -static struct platform_device serial_device = { - .name = "serial8250", - .id = PLAT8250_DEV_PLATFORM, - .dev = { - .platform_data = serial_platform_data, +static struct omap_uart_state omap_uart[OMAP_MAX_NR_PORTS] = { + { + .pdev = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev = { + .platform_data = serial_platform_data0, + }, + }, + }, { + .pdev = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM1, + .dev = { + .platform_data = serial_platform_data1, + }, + }, + }, { + .pdev = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM2, + .dev = { + .platform_data = serial_platform_data2, + }, + }, }, }; void __init omap_serial_init(void) { - int i, err; + int i; const struct omap_uart_config *info; char name[16]; @@ -512,8 +570,10 @@ void __init omap_serial_init(void) return; for (i = 0; i < OMAP_MAX_NR_PORTS; i++) { - struct plat_serial8250_port *p = serial_platform_data + i; struct omap_uart_state *uart = &omap_uart[i]; + struct platform_device *pdev = &uart->pdev; + struct device *dev = &pdev->dev; + struct plat_serial8250_port *p = dev->platform_data; if (!(info->enabled_uarts & (1 << i))) { p->membase = NULL; @@ -549,15 +609,13 @@ void __init omap_serial_init(void) omap_uart_enable_clocks(uart); omap_uart_reset(uart); omap_uart_idle_init(uart); - } - - err = platform_device_register(&serial_device); - -#ifdef CONFIG_PM - if (!err) - err = sysfs_create_file(&serial_device.dev.kobj, - &sleep_timeout_attr.attr); -#endif + if (WARN_ON(platform_device_register(pdev))) + continue; + if ((cpu_is_omap34xx() && uart->padconf) || + (uart->wk_en && uart->wk_mask)) { + device_init_wakeup(dev, true); + DEV_CREATE_FILE(dev, &dev_attr_sleep_timeout); + } + } } - -- cgit v1.2.3-70-g09d2 From bcf396c48012a5e4c7ab77be5c40df10d6bdb8ad Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Tue, 30 Jun 2009 21:02:45 -0700 Subject: OMAP2/3/4: UART: allow in-order port traversal Use list_add_tail() when adding discovered UART ports. This is so traversal using list_for_each_entry() will traverse the list in the order they were found. Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/serial.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 6f35a7e4893..a7421a50410 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -601,7 +601,7 @@ void __init omap_serial_init(void) uart->num = i; p->private_data = uart; uart->p = p; - list_add(&uart->node, &uart_list); + list_add_tail(&uart->node, &uart_list); if (cpu_is_omap44xx()) p->irq += 32; -- cgit v1.2.3-70-g09d2 From 60c45ae1107c4ec47d2c84e5984ea59d02b2863d Mon Sep 17 00:00:00 2001 From: Eero Nurkkala Date: Tue, 23 Jun 2009 12:53:29 +0300 Subject: OMAP: PM: CPUfreq: obey min/max settings of policy Use the min/max settings from CPUfreq policy rather than processor defined min/max settings. Without this patch, it's possible to scale frequency outside the current policy range. Signed-off-by: Eero Nurkkala Signed-off-by: Kevin Hilman --- arch/arm/plat-omap/cpu-omap.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/arm/plat-omap/cpu-omap.c b/arch/arm/plat-omap/cpu-omap.c index 843e8af6406..1868c0d8f9b 100644 --- a/arch/arm/plat-omap/cpu-omap.c +++ b/arch/arm/plat-omap/cpu-omap.c @@ -78,10 +78,10 @@ static int omap_target(struct cpufreq_policy *policy, /* Ensure desired rate is within allowed range. Some govenors * (ondemand) will just pass target_freq=0 to get the minimum. */ - if (target_freq < policy->cpuinfo.min_freq) - target_freq = policy->cpuinfo.min_freq; - if (target_freq > policy->cpuinfo.max_freq) - target_freq = policy->cpuinfo.max_freq; + if (target_freq < policy->min) + target_freq = policy->min; + if (target_freq > policy->max) + target_freq = policy->max; freqs.old = omap_getspeed(0); freqs.new = clk_round_rate(mpu_clk, target_freq * 1000) / 1000; -- cgit v1.2.3-70-g09d2 From 6c5f80393b107b0c9e2a54b03b65d1880e706655 Mon Sep 17 00:00:00 2001 From: Jouni Hogander Date: Wed, 29 Oct 2008 12:06:04 +0200 Subject: OMAP3: PM: Fix wrong sequence in suspend. Powerdomain previous state is checked after restoring new states in suspend. This patch fixes this problem. Signed-off-by: Jouni Hogander Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/pm34xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index b07efb26de1..488d595d8e4 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -326,7 +326,6 @@ static int omap3_pm_suspend(void) restore: /* Restore next_pwrsts */ list_for_each_entry(pwrst, &pwrst_list, node) { - set_pwrdm_state(pwrst->pwrdm, pwrst->saved_state); state = pwrdm_read_prev_pwrst(pwrst->pwrdm); if (state > pwrst->next_state) { printk(KERN_INFO "Powerdomain (%s) didn't enter " @@ -334,6 +333,7 @@ restore: pwrst->pwrdm->name, pwrst->next_state); ret = -1; } + set_pwrdm_state(pwrst->pwrdm, pwrst->saved_state); } if (ret) printk(KERN_ERR "Could not enter target state in pm_suspend\n"); -- cgit v1.2.3-70-g09d2 From 55b6019ae29456e0f1e4087546bf4221c48622a0 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Thu, 4 Jun 2009 15:57:10 -0700 Subject: OMAP: GPIO: clear/restore level/edge detect settings on mask/unmask If IRQ triggering is enabled, it can trigger a pending interrupt even for masked interrupts. Any pending GPIO interrupts can prevent the powerdomain from hitting retention. Problem found, reported and additional review and testing by Chunquiu Wang. Tested-by: Chunquiu Wang Signed-off-by: Kevin Hilman --- arch/arm/plat-omap/gpio.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch') diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index 26b387c1242..77bad14633e 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -1189,6 +1189,7 @@ static void gpio_mask_irq(unsigned int irq) struct gpio_bank *bank = get_irq_chip_data(irq); _set_gpio_irqenable(bank, gpio, 0); + _set_gpio_triggering(bank, get_gpio_index(gpio), IRQ_TYPE_NONE); } static void gpio_unmask_irq(unsigned int irq) @@ -1196,6 +1197,11 @@ static void gpio_unmask_irq(unsigned int irq) unsigned int gpio = irq - IH_GPIO_BASE; struct gpio_bank *bank = get_irq_chip_data(irq); unsigned int irq_mask = 1 << get_gpio_index(gpio); + struct irq_desc *desc = irq_to_desc(irq); + u32 trigger = desc->status & IRQ_TYPE_SENSE_MASK; + + if (trigger) + _set_gpio_triggering(bank, get_gpio_index(gpio), trigger); /* For level-triggered GPIOs, the clearing must be done after * the HW source is cleared, thus after the handler has run */ -- cgit v1.2.3-70-g09d2 From 6fd210a9cc398ecbff7bcdbe220651b73b654f56 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 20 Jul 2009 09:09:23 -0700 Subject: OMAP3: Overo: add missing pen-down GPIO definition Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/board-overo.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch') diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c index dff5528fbfb..e26af837510 100644 --- a/arch/arm/mach-omap2/board-overo.c +++ b/arch/arm/mach-omap2/board-overo.c @@ -51,6 +51,7 @@ #define OVERO_GPIO_BT_XGATE 15 #define OVERO_GPIO_W2W_NRESET 16 +#define OVERO_GPIO_PENDOWN 114 #define OVERO_GPIO_BT_NRESET 164 #define OVERO_GPIO_USBH_CPEN 168 #define OVERO_GPIO_USBH_NRESET 183 -- cgit v1.2.3-70-g09d2 From cd92204924fafbd5c7241dfd12ca3176d542e0c5 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Mon, 10 Aug 2009 14:49:50 +0300 Subject: OMAP: Fix testing of cpu defines for mach-omap1 There's no need to keep these defines limited in the ifdef block for mach-omap2. It will just cause problems testing for the CPU revision in the common code, like the next patch does for the DMA errata. Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/include/mach/cpu.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'arch') diff --git a/arch/arm/plat-omap/include/mach/cpu.h b/arch/arm/plat-omap/include/mach/cpu.h index 285eaa3a827..11e73d9e892 100644 --- a/arch/arm/plat-omap/include/mach/cpu.h +++ b/arch/arm/plat-omap/include/mach/cpu.h @@ -378,9 +378,6 @@ IS_OMAP_TYPE(3430, 0x3430) #define cpu_class_is_omap2() (cpu_is_omap24xx() || cpu_is_omap34xx() || \ cpu_is_omap44xx()) -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) || \ - defined(CONFIG_ARCH_OMAP4) - /* Various silicon revisions for omap2 */ #define OMAP242X_CLASS 0x24200024 #define OMAP2420_REV_ES1_0 0x24200024 @@ -436,5 +433,3 @@ IS_OMAP_TYPE(3430, 0x3430) int omap_chip_is(struct omap_chip_id oci); void omap2_check_revision(void); - -#endif /* defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) */ -- cgit v1.2.3-70-g09d2 From 284119c48f4a0c469b3e0237b500e536b4bc7b6f Mon Sep 17 00:00:00 2001 From: Vikram Pandita Date: Mon, 10 Aug 2009 14:49:50 +0300 Subject: OMAP2/3: DMA errata correction This errata is valid for: OMAP2420 Errata 1.85 Impacts all 2420 ES rev OMAP2430 Errata 1.10 Impacts only ES1.0 Description: DMA may hang when several channels are used in parallel OMAP3430: Not impacted, so remove the errata fix for omap3 Fixed issue reported on cpu_is_omap24xx check reported by Nishant Kamat Signed-off-by: Vikram Pandita Reviewed-by: Nishant Kamat Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/dma.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index 7677a4a1cef..e3ac94f0900 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -946,7 +946,9 @@ void omap_start_dma(int lch) cur_lch = next_lch; } while (next_lch != -1); - } else if (cpu_class_is_omap2()) { + } else if (cpu_is_omap242x() || + (cpu_is_omap243x() && omap_type() <= OMAP2430_REV_ES1_0)) { + /* Errata: Need to write lch even if not using chaining */ dma_write(lch, CLNK_CTRL(lch)); } -- cgit v1.2.3-70-g09d2 From 370bc1fdefb8a30018d98aca2fdfd6b6701082e7 Mon Sep 17 00:00:00 2001 From: Janboe Ye Date: Mon, 10 Aug 2009 14:49:50 +0300 Subject: OMAP3: Fix omap3 sram virtual addres overlap vmalloc space after increasing vmalloc size commit e85c205ac1427f2405021a36f083280ff0d0a35e increase vmalloc size. vmalloc space will overlap with OMAP3 sram virtual address. Signed-off-by: Li Hong Mei Signed-off-by: Janboe Ye Reviewed-by: Paul Walmsley --- arch/arm/plat-omap/sram.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index 4ea73804d21..2890b11f238 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c @@ -44,9 +44,9 @@ #define OMAP2_SRAM_VA 0xe3000000 #define OMAP2_SRAM_PUB_VA (OMAP2_SRAM_VA + 0x800) #define OMAP3_SRAM_PA 0x40200000 -#define OMAP3_SRAM_VA 0xd7000000 +#define OMAP3_SRAM_VA 0xe3000000 #define OMAP3_SRAM_PUB_PA 0x40208000 -#define OMAP3_SRAM_PUB_VA 0xd7008000 +#define OMAP3_SRAM_PUB_VA (OMAP3_SRAM_VA + 0x8000) #define OMAP4_SRAM_PA 0x40200000 /*0x402f0000*/ #define OMAP4_SRAM_VA 0xd7000000 /*0xd70f0000*/ -- cgit v1.2.3-70-g09d2 From 5032902c331acc71956e47abd90d090181c5ef4a Mon Sep 17 00:00:00 2001 From: Sergio Aguirre Date: Mon, 10 Aug 2009 14:49:50 +0300 Subject: OMAP3: Overo: Fix smsc911x platform device resource value Fixes a wrong setting of resource parameter list in SMSC911x platform driver data structure for Overo case. This fixes folowing warning when compiling for Overo board: warning: initialization from incompatible pointer type Introduced since commit id: commit 172ef275444efa12d834fb9d1b1acdac92db47f7 Author: Steve Sakoman Date: Mon Feb 2 06:27:49 2009 +0000 ARM: Add SMSC911X support to Overo platform (V2) Signed-off-by: Sergio Aguirre Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-overo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c index dff5528fbfb..fec1bb19b9f 100644 --- a/arch/arm/mach-omap2/board-overo.c +++ b/arch/arm/mach-omap2/board-overo.c @@ -146,7 +146,7 @@ static struct platform_device overo_smsc911x_device = { .name = "smsc911x", .id = -1, .num_resources = ARRAY_SIZE(overo_smsc911x_resources), - .resource = &overo_smsc911x_resources, + .resource = overo_smsc911x_resources, .dev = { .platform_data = &overo_smsc911x_config, }, -- cgit v1.2.3-70-g09d2 From dfc27b34496923b5f552eb9cdf20468045114ada Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Mon, 10 Aug 2009 14:49:51 +0300 Subject: OMAP3: RX51: Define TWL4030 USB transceiver in board file Add OTG transceiver to RX51 platform data to prevent kernel NULL pointer dereference during MUSB initialisation. Signed-off-by: Roger Quadros Signed-off-by: Felipe Balbi Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-rx51-peripherals.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c index 9a0bf6744a0..56d931a425f 100644 --- a/arch/arm/mach-omap2/board-rx51-peripherals.c +++ b/arch/arm/mach-omap2/board-rx51-peripherals.c @@ -278,6 +278,10 @@ static struct twl4030_gpio_platform_data rx51_gpio_data = { .setup = rx51_twlgpio_setup, }; +static struct twl4030_usb_data rx51_usb_data = { + .usb_mode = T2_USB_MODE_ULPI, +}; + static struct twl4030_platform_data rx51_twldata = { .irq_base = TWL4030_IRQ_BASE, .irq_end = TWL4030_IRQ_END, @@ -286,6 +290,7 @@ static struct twl4030_platform_data rx51_twldata = { .gpio = &rx51_gpio_data, .keypad = &rx51_kp_data, .madc = &rx51_madc_data, + .usb = &rx51_usb_data, .vaux1 = &rx51_vaux1, .vaux2 = &rx51_vaux2, -- cgit v1.2.3-70-g09d2 From 22833044fbe2764d44ae03f58508e671652ca186 Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Mon, 10 Aug 2009 14:49:51 +0300 Subject: OMAP2/3: mmc-twl4030: Free up MMC regulators while cleaning up twl_mmc_cleanup() must free up the regulators that were allocated by twl_mmc_late_init(). This eliminates the below error when 'omap_hsmmc' module is repeatedly loaded and unloaded. "sysfs: cannot create duplicate filename '/devices/platform /mmci-omap-hs.0/microamps_requested_vmmc'" Signed-off-by: Roger Quadros Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/mmc-twl4030.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-omap2/mmc-twl4030.c b/arch/arm/mach-omap2/mmc-twl4030.c index 1541fd4c8d0..3c04c2f1b23 100644 --- a/arch/arm/mach-omap2/mmc-twl4030.c +++ b/arch/arm/mach-omap2/mmc-twl4030.c @@ -119,6 +119,7 @@ static int twl_mmc_late_init(struct device *dev) if (i != 0) break; ret = PTR_ERR(reg); + hsmmc[i].vcc = NULL; goto err; } hsmmc[i].vcc = reg; @@ -165,8 +166,13 @@ done: static void twl_mmc_cleanup(struct device *dev) { struct omap_mmc_platform_data *mmc = dev->platform_data; + int i; gpio_free(mmc->slots[0].switch_pin); + for(i = 0; i < ARRAY_SIZE(hsmmc); i++) { + regulator_put(hsmmc[i].vcc); + regulator_put(hsmmc[i].vcc_aux); + } } #ifdef CONFIG_PM -- cgit v1.2.3-70-g09d2 From 4177662ec9f5e50b69ef074369fdb429dd48d97e Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Mon, 10 Aug 2009 14:49:52 +0300 Subject: OMAP3: RX51: Updated rx51_defconfig Added REGULATOR, MMC and updated default CMDLINE so RX51 now boots. Note that the regulator code should be moved from mmc-twl4030.c to omap_hsmmc.c so it can be a module. Signed-off-by: Roger Quadros Signed-off-by: Tony Lindgren --- arch/arm/configs/rx51_defconfig | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/arm/configs/rx51_defconfig b/arch/arm/configs/rx51_defconfig index eb2cb31825c..f238df66efd 100644 --- a/arch/arm/configs/rx51_defconfig +++ b/arch/arm/configs/rx51_defconfig @@ -282,7 +282,7 @@ CONFIG_ALIGNMENT_TRAP=y # CONFIG_ZBOOT_ROM_TEXT=0x0 CONFIG_ZBOOT_ROM_BSS=0x0 -CONFIG_CMDLINE="init=/sbin/preinit ubi.mtd=rootfs root=ubi0:rootfs rootfstype=ubifs rootflags=bulk_read,no_chk_data_crc rw console=ttyMTD,log console=tty0" +CONFIG_CMDLINE="init=/sbin/preinit ubi.mtd=rootfs root=ubi0:rootfs rootfstype=ubifs rootflags=bulk_read,no_chk_data_crc rw console=ttyMTD,log console=tty0 console=ttyS2,115200n8" # CONFIG_XIP_KERNEL is not set # CONFIG_KEXEC is not set @@ -1354,7 +1354,7 @@ CONFIG_USB_OTG_UTILS=y # CONFIG_USB_GPIO_VBUS is not set # CONFIG_ISP1301_OMAP is not set CONFIG_TWL4030_USB=y -CONFIG_MMC=m +CONFIG_MMC=y # CONFIG_MMC_DEBUG is not set # CONFIG_MMC_UNSAFE_RESUME is not set @@ -1449,7 +1449,8 @@ CONFIG_RTC_DRV_TWL4030=m # on-CPU RTC drivers # # CONFIG_DMADEVICES is not set -# CONFIG_REGULATOR is not set +CONFIG_REGULATOR=y +CONFIG_REGULATOR_TWL4030=y # CONFIG_UIO is not set # CONFIG_STAGING is not set -- cgit v1.2.3-70-g09d2 From 3e03bbeac541856aaaf1ce1ab0250b6a490e4099 Mon Sep 17 00:00:00 2001 From: Shunichi Fuji Date: Tue, 11 Aug 2009 03:34:40 +0900 Subject: x86: Add reboot quirk for every 5 series MacBook/Pro MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reboot does not work on my MacBook Pro 13 inch (MacBookPro5,5) too. It seems all unibody MacBook and MacBookPro require PCI reboot handling, i guess. Following model/machine ID list shows unibody MacBook/Pro have the 5 series of model number: http://www.everymac.com/systems/by_capability/macs-by-machine-model-machine-id.html Signed-off-by: Shunichi Fuji Cc: Ozan Çağlayan LKML-Reference: <30046e3b0908101134p6487ddbftd8776e4ddef204be@mail.gmail.com> Signed-off-by: Ingo Molnar --- arch/x86/kernel/reboot.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'arch') diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index 9eb89760370..a06e8d10184 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -418,20 +418,20 @@ static int __init set_pci_reboot(const struct dmi_system_id *d) } static struct dmi_system_id __initdata pci_reboot_dmi_table[] = { - { /* Handle problems with rebooting on Apple MacBook5,2 */ + { /* Handle problems with rebooting on Apple MacBook5 */ .callback = set_pci_reboot, - .ident = "Apple MacBook", + .ident = "Apple MacBook5", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5,2"), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5"), }, }, - { /* Handle problems with rebooting on Apple MacBookPro5,1 */ + { /* Handle problems with rebooting on Apple MacBookPro5 */ .callback = set_pci_reboot, - .ident = "Apple MacBookPro5,1", + .ident = "Apple MacBookPro5", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5,1"), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5"), }, }, { } -- cgit v1.2.3-70-g09d2 From 0d01f31439c1e4d602bf9fdc924ab66f407f5e38 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Sun, 9 Aug 2009 21:44:49 -0700 Subject: x86, mce: therm_throt - change when we print messages My Latitude d630 seems to be handling thermal events in SMI by lowering the max frequency of the CPU till it cools down but still leaks the "everything is normal" events. This spams the console and with high priority printks. Adjust therm_throt driver to only print messages about the fact that temperatire returned back to normal when leaving the throttling state. Also lower the severity of "back to normal" message from KERN_CRIT to KERN_INFO. Signed-off-by: Dmitry Torokhov Acked-by: H. Peter Anvin LKML-Reference: <20090810051513.0558F526EC9@mailhub.coreip.homeip.net> Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/mcheck/therm_throt.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) (limited to 'arch') diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c index bff8dd191dd..8bc64cfbe93 100644 --- a/arch/x86/kernel/cpu/mcheck/therm_throt.c +++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c @@ -36,6 +36,7 @@ static DEFINE_PER_CPU(__u64, next_check) = INITIAL_JIFFIES; static DEFINE_PER_CPU(unsigned long, thermal_throttle_count); +static DEFINE_PER_CPU(bool, thermal_throttle_active); static atomic_t therm_throt_en = ATOMIC_INIT(0); @@ -96,24 +97,27 @@ static int therm_throt_process(int curr) { unsigned int cpu = smp_processor_id(); __u64 tmp_jiffs = get_jiffies_64(); + bool was_throttled = __get_cpu_var(thermal_throttle_active); + bool is_throttled = __get_cpu_var(thermal_throttle_active) = curr; - if (curr) + if (is_throttled) __get_cpu_var(thermal_throttle_count)++; - if (time_before64(tmp_jiffs, __get_cpu_var(next_check))) + if (!(was_throttled ^ is_throttled) && + time_before64(tmp_jiffs, __get_cpu_var(next_check))) return 0; __get_cpu_var(next_check) = tmp_jiffs + CHECK_INTERVAL; /* if we just entered the thermal event */ - if (curr) { + if (is_throttled) { printk(KERN_CRIT "CPU%d: Temperature above threshold, " - "cpu clock throttled (total events = %lu)\n", cpu, - __get_cpu_var(thermal_throttle_count)); + "cpu clock throttled (total events = %lu)\n", + cpu, __get_cpu_var(thermal_throttle_count)); add_taint(TAINT_MACHINE_CHECK); - } else { - printk(KERN_CRIT "CPU%d: Temperature/speed normal\n", cpu); + } else if (was_throttled) { + printk(KERN_INFO "CPU%d: Temperature/speed normal\n", cpu); } return 1; -- cgit v1.2.3-70-g09d2 From 3c581a7f94542341bf0da496a226b44ac63521a8 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 11 Aug 2009 10:47:36 +0200 Subject: perf_counter, x86: Fix lapic printk message Instead of this garbled bootup on UP Pentium-M systems: [ 0.015048] Performance Counters: [ 0.016004] no Local APIC, try rebooting with lapicno PMU driver, software counters only. Print: [ 0.015050] Performance Counters: [ 0.016004] no APIC, boot with the "lapic" boot parameter to force-enable it. [ 0.017003] no PMU driver, software counters only. Cf: Frederic Weisbecker Cc: Peter Zijlstra Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/perf_counter.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c index a7aa8f90095..40e233a24d9 100644 --- a/arch/x86/kernel/cpu/perf_counter.c +++ b/arch/x86/kernel/cpu/perf_counter.c @@ -1590,7 +1590,7 @@ static int p6_pmu_init(void) } if (!cpu_has_apic) { - pr_info("no Local APIC, try rebooting with lapic"); + pr_info("no APIC, boot with the \"lapic\" boot parameter to force-enable it.\n"); return -ENODEV; } -- cgit v1.2.3-70-g09d2 From f64ccccb8afa43abdd63fcbd230f818d6ea0883f Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 11 Aug 2009 10:26:33 +0200 Subject: perf_counter, x86: Fix generic cache events on P6-mobile CPUs Johannes Stezenbach reported that 'perf stat' does not count cache-miss and cache-references events on his Pentium-M based laptop. This is because we left them blank in p6_perfmon_event_map[], fill them in. Reported-by: Johannes Stezenbach Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/perf_counter.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c index 40e233a24d9..fffc126dbdf 100644 --- a/arch/x86/kernel/cpu/perf_counter.c +++ b/arch/x86/kernel/cpu/perf_counter.c @@ -72,8 +72,8 @@ static const u64 p6_perfmon_event_map[] = { [PERF_COUNT_HW_CPU_CYCLES] = 0x0079, [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0, - [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0000, - [PERF_COUNT_HW_CACHE_MISSES] = 0x0000, + [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0f2e, + [PERF_COUNT_HW_CACHE_MISSES] = 0x012e, [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4, [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5, [PERF_COUNT_HW_BUS_CYCLES] = 0x0062, -- cgit v1.2.3-70-g09d2 From fbd8b1819e80ac5a176d085fdddc3a34d1499318 Mon Sep 17 00:00:00 2001 From: Kevin Winchester Date: Mon, 10 Aug 2009 19:56:45 -0300 Subject: x86: Clear incorrectly forced X86_FEATURE_LAHF_LM flag Due to an erratum with certain AMD Athlon 64 processors, the BIOS may need to force enable the LAHF_LM capability. Unfortunately, in at least one case, the BIOS does this even for processors that do not support the functionality. Add a specific check that will clear the feature bit for processors known not to support the LAHF/SAHF instructions. Signed-off-by: Kevin Winchester Acked-by: Borislav Petkov LKML-Reference: <4A80A5AD.2000209@gmail.com> Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/amd.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch') diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index e2485b03f1c..63fddcd082c 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -400,6 +400,13 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) level = cpuid_eax(1); if((level >= 0x0f48 && level < 0x0f50) || level >= 0x0f58) set_cpu_cap(c, X86_FEATURE_REP_GOOD); + + /* + * Some BIOSes incorrectly force this feature, but only K8 + * revision D (model = 0x14) and later actually support it. + */ + if (c->x86_model < 0x14) + clear_cpu_cap(c, X86_FEATURE_LAHF_LM); } if (c->x86 == 0x10 || c->x86 == 0x11) set_cpu_cap(c, X86_FEATURE_REP_GOOD); -- cgit v1.2.3-70-g09d2 From dee2b904a1f93c275a015b67cd693038d74b18e8 Mon Sep 17 00:00:00 2001 From: Mikael Pettersson Date: Sun, 9 Aug 2009 21:21:57 +0200 Subject: IXP4xx: Fix IO_SPACE_LIMIT for 2.6.31-rc core PCI changes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 2.6.31-rc kernels don't boot on my ixp4xx box (ds101), because the libata driver doesn't find the PCI IDE controller any more. 2.6.30 was fine. I traced this to a PCI update (1f82de10d6b1d845155363c895c552e61b36b51a) in 2.6.30-git19. Diffing the kernel boot logs from 2.6.30-git18 and 2.6.30-git19 illustrates the breakage: > --- dmesg-2.6.30-git18 2009-08-04 01:45:22.000000000 +0200 > +++ dmesg-2.6.30-git19 2009-08-04 01:45:46.000000000 +0200 > @@ -26,6 +26,13 @@ > pci 0000:00:02.2: PME# supported from D0 D1 D2 D3hot > pci 0000:00:02.2: PME# disabled > PCI: bus0: Fast back to back transfers disabled > +pci 0000:00:01.0: BAR 0: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:01.0: BAR 1: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:01.0: BAR 2: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:01.0: BAR 3: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:01.0: BAR 4: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:02.0: BAR 4: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:02.1: BAR 4: can't allocate I/O resource [0x10000-0xffff] > bio: create slab at 0 > SCSI subsystem initialized > NET: Registered protocol family 2 > @@ -44,11 +51,7 @@ > console [ttyS0] enabled > serial8250.0: ttyS1 at MMIO 0xc8001000 (irq = 13) is a XScale > Driver 'sd' needs updating - please use bus_type methods > -PCI: enabling device 0000:00:01.0 (0140 -> 0141) > -scsi0 : pata_artop > -scsi1 : pata_artop > -ata1: PATA max UDMA/100 cmd 0x1050 ctl 0x1060 bmdma 0x1040 irq 28 > -ata2: PATA max UDMA/100 cmd 0x1058 ctl 0x1064 bmdma 0x1048 irq 28 > +pata_artop 0000:00:01.0: no available native port > Using configured DiskOnChip probe address 0x50000000 > DiskOnChip found at 0x50000000 > NAND device: Manufacturer ID: 0x98, Chip ID: 0x73 (Toshiba NAND 16MiB 3,3V 8-bit) The specific change in 1f82de10d6b1d845155363c895c552e61b36b51a responsible for this failure turned out to be the following: > --- a/drivers/pci/probe.c > +++ b/drivers/pci/probe.c > @@ -193,7 +193,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, > res->flags |= pci_calc_resource_flags(l) | IORESOURCE_SIZEALIGN; > if (type == pci_bar_io) { > l &= PCI_BASE_ADDRESS_IO_MASK; > - mask = PCI_BASE_ADDRESS_IO_MASK & 0xffff; > + mask = PCI_BASE_ADDRESS_IO_MASK & IO_SPACE_LIMIT; > } else { > l &= PCI_BASE_ADDRESS_MEM_MASK; > mask = (u32)PCI_BASE_ADDRESS_MEM_MASK; Every arch except arm's ixp4xx defines IO_SPACE_LIMIT as an all-bits-one bitmask, typically -1UL but sometimes only a 16-bit 0x0000ffff. But ixp4xx defines it as 0xffff0000, which is now causing the PCI failures. Russell King noted that ixp4xx has 64KB PCI IO space, so IO_SPACE_LIMIT should be 0x0000ffff. This patch makes that change, which fixes the PCI failures on my ixp4xx box. Signed-off-by: Mikael Pettersson Signed-off-by: Krzysztof Hałasa --- arch/arm/mach-ixp4xx/include/mach/io.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/mach-ixp4xx/include/mach/io.h b/arch/arm/mach-ixp4xx/include/mach/io.h index ce63048d45e..8a947d42a6f 100644 --- a/arch/arm/mach-ixp4xx/include/mach/io.h +++ b/arch/arm/mach-ixp4xx/include/mach/io.h @@ -17,7 +17,7 @@ #include -#define IO_SPACE_LIMIT 0xffff0000 +#define IO_SPACE_LIMIT 0x0000ffff extern int (*ixp4xx_pci_read)(u32 addr, u32 cmd, u32* data); extern int ixp4xx_pci_write(u32 addr, u32 cmd, u32 data); -- cgit v1.2.3-70-g09d2 From 51b89f7a6615eca184aa0b85db5781d931e9c8d1 Mon Sep 17 00:00:00 2001 From: Fenghua Yu <[fenghua.yu@intel.com]> Date: Tue, 11 Aug 2009 14:52:10 -0700 Subject: Bug Fix arch/ia64/kernel/pci-dma.c: fix recursive dma_supported() call in iommu_dma_supported() In commit 160c1d8e40866edfeae7d68816b7005d70acf391, dma_ops->dma_supported = iommu_dma_supported; This dma_ops->dma_supported is first called in platform_dma_init() during kernel boot. Then dma_ops->dma_supported will be called recursively in iommu_dma_supported. Kernel can not boot because kernel can not get out of iommu_dma_supported until it runs out of stack memory. Signed-off-by: Fenghua Yu --- arch/ia64/kernel/pci-dma.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'arch') diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c index 05695962fe4..f6b1ff0aea7 100644 --- a/arch/ia64/kernel/pci-dma.c +++ b/arch/ia64/kernel/pci-dma.c @@ -69,11 +69,6 @@ iommu_dma_init(void) int iommu_dma_supported(struct device *dev, u64 mask) { - struct dma_map_ops *ops = platform_dma_get_ops(dev); - - if (ops->dma_supported) - return ops->dma_supported(dev, mask); - /* Copied from i386. Doesn't make much sense, because it will only work for pci_alloc_coherent. The caller just has to use GFP_DMA in this case. */ -- cgit v1.2.3-70-g09d2 From 8d6f9af91959256244878cd801c1c969e66cd093 Mon Sep 17 00:00:00 2001 From: Johannes Weiner <[hannes@cmpxchg.org]> Date: Tue, 11 Aug 2009 14:52:10 -0700 Subject: ia64: boolean __test_and_clear_bit __test_and_clear_bit() returns a bitfield with the tested-for bit set. Make it consistent with the other bitops - of ia64 but also every other architecture - and return a boolean value. Signed-off-by: Johannes Weiner Acked-by: Fenghua Yu --- arch/ia64/include/asm/bitops.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/ia64/include/asm/bitops.h b/arch/ia64/include/asm/bitops.h index e2ca8003733..57a2787bc9f 100644 --- a/arch/ia64/include/asm/bitops.h +++ b/arch/ia64/include/asm/bitops.h @@ -286,7 +286,7 @@ __test_and_clear_bit(int nr, volatile void * addr) { __u32 *p = (__u32 *) addr + (nr >> 5); __u32 m = 1 << (nr & 31); - int oldbitset = *p & m; + int oldbitset = (*p & m) != 0; *p &= ~m; return oldbitset; -- cgit v1.2.3-70-g09d2 From cfa5f809e399c699974ba6018eefa022bbc2e16e Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput <[jaswinder@kernel.org]> Date: Tue, 11 Aug 2009 14:52:10 -0700 Subject: IA64: includecheck fix: ia64, ia64_ksyms.c fix the following 'make includecheck' warning: arch/ia64/kernel/ia64_ksyms.c: asm/page.h is included more than once. Signed-off-by: Jaswinder Singh Rajput Acked-by: Fenghua Yu --- arch/ia64/kernel/ia64_ksyms.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c index 2d311864e35..8ebccb589e1 100644 --- a/arch/ia64/kernel/ia64_ksyms.c +++ b/arch/ia64/kernel/ia64_ksyms.c @@ -21,6 +21,7 @@ EXPORT_SYMBOL(csum_ipv6_magic); #include EXPORT_SYMBOL(clear_page); +EXPORT_SYMBOL(copy_page); #ifdef CONFIG_VIRTUAL_MEM_MAP #include @@ -60,9 +61,6 @@ EXPORT_SYMBOL(__udivdi3); EXPORT_SYMBOL(__moddi3); EXPORT_SYMBOL(__umoddi3); -#include -EXPORT_SYMBOL(copy_page); - #if defined(CONFIG_MD_RAID456) || defined(CONFIG_MD_RAID456_MODULE) extern void xor_ia64_2(void); extern void xor_ia64_3(void); -- cgit v1.2.3-70-g09d2 From b5a8879347bbe68bd24c8870503bf6a0362da26b Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput <[jaswinder@kernel.org]> Date: Tue, 11 Aug 2009 14:52:11 -0700 Subject: IA64: includecheck fix: ia64, pgtable.h fix the following 'make includecheck' warning: arch/ia64/include/asm/pgtable.h: asm/processor.h is included more than once. Signed-off-by: Jaswinder Singh Rajput Acked-by: Fenghua Yu --- arch/ia64/include/asm/pgtable.h | 1 - 1 file changed, 1 deletion(-) (limited to 'arch') diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h index 0a9cc73d35c..8840a690d1e 100644 --- a/arch/ia64/include/asm/pgtable.h +++ b/arch/ia64/include/asm/pgtable.h @@ -155,7 +155,6 @@ #include #include #include -#include /* * Next come the mappings that determine how mmap() protection bits -- cgit v1.2.3-70-g09d2 From bf2a4c7270b9a22243a91ab5efcc47aaf997c66b Mon Sep 17 00:00:00 2001 From: Fenghua Yu <[fenghua.yu@intel.com]> Date: Tue, 11 Aug 2009 14:52:11 -0700 Subject: arch/ia64/Makefile: Remove -mtune=merced in IA64 kernel build Between GCC version 3.4.0 and 4.3.3 (including 3.4.0 and 4.3.3), -mtune=merced is implemented in GCC. Starting from 4.4.0, -mtune=merced is deprecated. Even implemented in versions between 3.4.0 and 4.3.3, the -mtune=merced feature has been broken in some of the versions. For example, GCC 4.1.2 reports interanl tuning function errors during kernel building with -mtune=merced. Or GCC Bugzilla 16130 reports another -mtune=merced issue on GCC 3.4.1. So I would remove the -mtune=merced from IA64 kernel build. Without this option, kernel on Merced will remain the same except losing an unstable and out-of-date performance tunning feature. Since GCC version 3.4.0, -mtune=mckinley has been implemented. The -mtune=mckinley option functions the same as mtune=itanium2. And mtune=itanium2 is the default option. So we don't need to add mtune=mckinley either since its been the default option in any GCC version which implements this option. Signed-off-by: Fenghua Yu --- arch/ia64/Makefile | 5 ----- 1 file changed, 5 deletions(-) (limited to 'arch') diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile index 58a7e46affd..e7cbaa02cd0 100644 --- a/arch/ia64/Makefile +++ b/arch/ia64/Makefile @@ -41,11 +41,6 @@ $(error Sorry, you need a newer version of the assember, one that is built from ftp://ftp.hpl.hp.com/pub/linux-ia64/gas-030124.tar.gz) endif -ifeq ($(call cc-version),0304) - cflags-$(CONFIG_ITANIUM) += -mtune=merced - cflags-$(CONFIG_MCKINLEY) += -mtune=mckinley -endif - KBUILD_CFLAGS += $(cflags-y) head-y := arch/ia64/kernel/head.o arch/ia64/kernel/init_task.o -- cgit v1.2.3-70-g09d2 From 5359dffd4396f281c5b77de1acbee6fb1b333b23 Mon Sep 17 00:00:00 2001 From: Fenghua Yu Date: Tue, 11 Aug 2009 14:52:11 -0700 Subject: ia64/topology.c: exit cache_add_dev when kobject_init_and_add fails Make cache_add_dev exit sysfs when kobject_init_and_add returns an error. Signed-off-by: Xiaotian Feng Signed-off-by: Fenghua Yu --- arch/ia64/kernel/topology.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c index bc80dff1df7..8f060352e12 100644 --- a/arch/ia64/kernel/topology.c +++ b/arch/ia64/kernel/topology.c @@ -372,6 +372,10 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev) retval = kobject_init_and_add(&all_cpu_cache_info[cpu].kobj, &cache_ktype_percpu_entry, &sys_dev->kobj, "%s", "cache"); + if (unlikely(retval < 0)) { + cpu_cache_sysfs_exit(cpu); + return retval; + } for (i = 0; i < all_cpu_cache_info[cpu].num_cache_leaves; i++) { this_object = LEAF_KOBJECT_PTR(cpu,i); @@ -385,7 +389,7 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev) } kobject_put(&all_cpu_cache_info[cpu].kobj); cpu_cache_sysfs_exit(cpu); - break; + return retval; } kobject_uevent(&(this_object->kobj), KOBJ_ADD); } -- cgit v1.2.3-70-g09d2 From e7369e01eb85550ed60dd1b0e120b69dfb03dc23 Mon Sep 17 00:00:00 2001 From: Roel Kluin <[roel.kluin@gmail.com]> Date: Tue, 11 Aug 2009 14:52:11 -0700 Subject: arch/ia64/kernel/iosapic: missing test after ioremap() Missing test after ioremap() Signed-off-by: Roel Kluin Acked-by: Fenghua Yu --- arch/ia64/kernel/iosapic.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch') diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c index c48b03f2b61..dab4d393908 100644 --- a/arch/ia64/kernel/iosapic.c +++ b/arch/ia64/kernel/iosapic.c @@ -1072,6 +1072,10 @@ iosapic_init (unsigned long phys_addr, unsigned int gsi_base) } addr = ioremap(phys_addr, 0); + if (addr == NULL) { + spin_unlock_irqrestore(&iosapic_lock, flags); + return -ENOMEM; + } ver = iosapic_version(addr); if ((err = iosapic_check_gsi_range(gsi_base, ver))) { iounmap(addr); -- cgit v1.2.3-70-g09d2 From e8055139d996e85722984968472868d6dccb1490 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Tue, 11 Aug 2009 20:00:11 +0200 Subject: x86: Fix oops in identify_cpu() on CPUs without CPUID Kernel is broken for x86 CPUs without CPUID since 2.6.28. It crashes with NULL pointer dereference in identify_cpu(): 766 generic_identify(c); 767 768--> if (this_cpu->c_identify) 769 this_cpu->c_identify(c); this_cpu is NULL. This is because it's only initialized in get_cpu_vendor() function, which is not called if the CPU has no CPUID instruction. Signed-off-by: Ondrej Zary LKML-Reference: <200908112000.15993.linux@rainbow-software.org> Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/common.c | 48 ++++++++++++++++++++++---------------------- 1 file changed, 24 insertions(+), 24 deletions(-) (limited to 'arch') diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index f1961c07af9..5ce60a88027 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -59,7 +59,30 @@ void __init setup_cpu_local_masks(void) alloc_bootmem_cpumask_var(&cpu_sibling_setup_mask); } -static const struct cpu_dev *this_cpu __cpuinitdata; +static void __cpuinit default_init(struct cpuinfo_x86 *c) +{ +#ifdef CONFIG_X86_64 + display_cacheinfo(c); +#else + /* Not much we can do here... */ + /* Check if at least it has cpuid */ + if (c->cpuid_level == -1) { + /* No cpuid. It must be an ancient CPU */ + if (c->x86 == 4) + strcpy(c->x86_model_id, "486"); + else if (c->x86 == 3) + strcpy(c->x86_model_id, "386"); + } +#endif +} + +static const struct cpu_dev __cpuinitconst default_cpu = { + .c_init = default_init, + .c_vendor = "Unknown", + .c_x86_vendor = X86_VENDOR_UNKNOWN, +}; + +static const struct cpu_dev *this_cpu __cpuinitdata = &default_cpu; DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = { #ifdef CONFIG_X86_64 @@ -332,29 +355,6 @@ void switch_to_new_gdt(int cpu) static const struct cpu_dev *__cpuinitdata cpu_devs[X86_VENDOR_NUM] = {}; -static void __cpuinit default_init(struct cpuinfo_x86 *c) -{ -#ifdef CONFIG_X86_64 - display_cacheinfo(c); -#else - /* Not much we can do here... */ - /* Check if at least it has cpuid */ - if (c->cpuid_level == -1) { - /* No cpuid. It must be an ancient CPU */ - if (c->x86 == 4) - strcpy(c->x86_model_id, "486"); - else if (c->x86 == 3) - strcpy(c->x86_model_id, "386"); - } -#endif -} - -static const struct cpu_dev __cpuinitconst default_cpu = { - .c_init = default_init, - .c_vendor = "Unknown", - .c_x86_vendor = X86_VENDOR_UNKNOWN, -}; - static void __cpuinit get_model_name(struct cpuinfo_x86 *c) { unsigned int *v; -- cgit v1.2.3-70-g09d2 From 04da8a43da804723a550f00dd158fd5b5e25ae35 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 11 Aug 2009 10:40:08 +0200 Subject: perf_counter, x86: Fix/improve apic fallback Johannes Stezenbach reported that his Pentium-M based laptop does not have the local APIC enabled by default, and hence perfcounters do not get initialized. Add a fallback for this case: allow non-sampled counters and return with an error on sampled counters. This allows 'perf stat' to work out of box - and allows 'perf top' and 'perf record' to fall back on a hrtimer based sampling method. ( Passing 'lapic' on the boot line will allow hardware sampling to occur - but if the APIC is disabled permanently by the hardware then this fallback still allows more systems to use perfcounters. ) Also decouple perfcounter support from X86_LOCAL_APIC. -v2: fix typo breaking counters on all other systems ... Reported-by: Johannes Stezenbach Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: Signed-off-by: Ingo Molnar --- arch/x86/Kconfig | 2 +- arch/x86/kernel/cpu/perf_counter.c | 34 ++++++++++++++++++++++++++++++---- 2 files changed, 31 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 738bdc6b0f8..13ffa5df37d 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -24,6 +24,7 @@ config X86 select HAVE_UNSTABLE_SCHED_CLOCK select HAVE_IDE select HAVE_OPROFILE + select HAVE_PERF_COUNTERS if (!M386 && !M486) select HAVE_IOREMAP_PROT select HAVE_KPROBES select ARCH_WANT_OPTIONAL_GPIOLIB @@ -742,7 +743,6 @@ config X86_UP_IOAPIC config X86_LOCAL_APIC def_bool y depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_APIC - select HAVE_PERF_COUNTERS if (!M386 && !M486) config X86_IO_APIC def_bool y diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c index fffc126dbdf..900332b800f 100644 --- a/arch/x86/kernel/cpu/perf_counter.c +++ b/arch/x86/kernel/cpu/perf_counter.c @@ -55,6 +55,7 @@ struct x86_pmu { int num_counters_fixed; int counter_bits; u64 counter_mask; + int apic; u64 max_period; u64 intel_ctrl; }; @@ -613,6 +614,7 @@ static DEFINE_MUTEX(pmc_reserve_mutex); static bool reserve_pmc_hardware(void) { +#ifdef CONFIG_X86_LOCAL_APIC int i; if (nmi_watchdog == NMI_LOCAL_APIC) @@ -627,9 +629,11 @@ static bool reserve_pmc_hardware(void) if (!reserve_evntsel_nmi(x86_pmu.eventsel + i)) goto eventsel_fail; } +#endif return true; +#ifdef CONFIG_X86_LOCAL_APIC eventsel_fail: for (i--; i >= 0; i--) release_evntsel_nmi(x86_pmu.eventsel + i); @@ -644,10 +648,12 @@ perfctr_fail: enable_lapic_nmi_watchdog(); return false; +#endif } static void release_pmc_hardware(void) { +#ifdef CONFIG_X86_LOCAL_APIC int i; for (i = 0; i < x86_pmu.num_counters; i++) { @@ -657,6 +663,7 @@ static void release_pmc_hardware(void) if (nmi_watchdog == NMI_LOCAL_APIC) enable_lapic_nmi_watchdog(); +#endif } static void hw_perf_counter_destroy(struct perf_counter *counter) @@ -748,6 +755,15 @@ static int __hw_perf_counter_init(struct perf_counter *counter) hwc->sample_period = x86_pmu.max_period; hwc->last_period = hwc->sample_period; atomic64_set(&hwc->period_left, hwc->sample_period); + } else { + /* + * If we have a PMU initialized but no APIC + * interrupts, we cannot sample hardware + * counters (user-space has to fall back and + * sample via a hrtimer based software counter): + */ + if (!x86_pmu.apic) + return -EOPNOTSUPP; } counter->destroy = hw_perf_counter_destroy; @@ -1449,18 +1465,22 @@ void smp_perf_pending_interrupt(struct pt_regs *regs) void set_perf_counter_pending(void) { +#ifdef CONFIG_X86_LOCAL_APIC apic->send_IPI_self(LOCAL_PENDING_VECTOR); +#endif } void perf_counters_lapic_init(void) { - if (!x86_pmu_initialized()) +#ifdef CONFIG_X86_LOCAL_APIC + if (!x86_pmu.apic || !x86_pmu_initialized()) return; /* * Always use NMI for PMU */ apic_write(APIC_LVTPC, APIC_DM_NMI); +#endif } static int __kprobes @@ -1484,7 +1504,9 @@ perf_counter_nmi_handler(struct notifier_block *self, regs = args->regs; +#ifdef CONFIG_X86_LOCAL_APIC apic_write(APIC_LVTPC, APIC_DM_NMI); +#endif /* * Can't rely on the handled return value to say it was our NMI, two * counters could trigger 'simultaneously' raising two back-to-back NMIs. @@ -1515,6 +1537,7 @@ static struct x86_pmu p6_pmu = { .event_map = p6_pmu_event_map, .raw_event = p6_pmu_raw_event, .max_events = ARRAY_SIZE(p6_perfmon_event_map), + .apic = 1, .max_period = (1ULL << 31) - 1, .version = 0, .num_counters = 2, @@ -1541,6 +1564,7 @@ static struct x86_pmu intel_pmu = { .event_map = intel_pmu_event_map, .raw_event = intel_pmu_raw_event, .max_events = ARRAY_SIZE(intel_perfmon_event_map), + .apic = 1, /* * Intel PMCs cannot be accessed sanely above 32 bit width, * so we install an artificial 1<<31 period regardless of @@ -1564,6 +1588,7 @@ static struct x86_pmu amd_pmu = { .num_counters = 4, .counter_bits = 48, .counter_mask = (1ULL << 48) - 1, + .apic = 1, /* use highest bit to detect overflow */ .max_period = (1ULL << 47) - 1, }; @@ -1589,13 +1614,14 @@ static int p6_pmu_init(void) return -ENODEV; } + x86_pmu = p6_pmu; + if (!cpu_has_apic) { pr_info("no APIC, boot with the \"lapic\" boot parameter to force-enable it.\n"); - return -ENODEV; + pr_info("no hardware sampling interrupt available.\n"); + x86_pmu.apic = 0; } - x86_pmu = p6_pmu; - return 0; } -- cgit v1.2.3-70-g09d2 From ba9a633787eed1e90d587282642580ad3d44f7fd Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Wed, 22 Jul 2009 15:14:29 +0000 Subject: sh: convert processor device setup functions to arch_initcall() Convert the processor platform device setup functions from __initcall() and sometimes device_initcall() to arch_initcall(). This makes sure that the platform devices are registered a bit earlier so the devices are available when drivers register using initcall levels earlier than device_initcall(). A good example is platform devices needed by i2c-sh_mobile.c which registers a bit earlier using subsys_initcall(). Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/sh2/setup-sh7619.c | 2 +- arch/sh/kernel/cpu/sh2a/setup-mxg.c | 2 +- arch/sh/kernel/cpu/sh2a/setup-sh7201.c | 2 +- arch/sh/kernel/cpu/sh2a/setup-sh7203.c | 2 +- arch/sh/kernel/cpu/sh2a/setup-sh7206.c | 2 +- arch/sh/kernel/cpu/sh3/setup-sh7705.c | 2 +- arch/sh/kernel/cpu/sh3/setup-sh770x.c | 2 +- arch/sh/kernel/cpu/sh3/setup-sh7710.c | 2 +- arch/sh/kernel/cpu/sh3/setup-sh7720.c | 2 +- arch/sh/kernel/cpu/sh4/setup-sh4-202.c | 2 +- arch/sh/kernel/cpu/sh4/setup-sh7750.c | 2 +- arch/sh/kernel/cpu/sh4/setup-sh7760.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7343.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7366.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7722.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7723.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7724.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7763.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7770.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7780.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7785.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7786.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-shx3.c | 2 +- arch/sh/kernel/cpu/sh5/setup-sh5.c | 2 +- 24 files changed, 24 insertions(+), 24 deletions(-) (limited to 'arch') diff --git a/arch/sh/kernel/cpu/sh2/setup-sh7619.c b/arch/sh/kernel/cpu/sh2/setup-sh7619.c index 13798733f2d..8555c05e866 100644 --- a/arch/sh/kernel/cpu/sh2/setup-sh7619.c +++ b/arch/sh/kernel/cpu/sh2/setup-sh7619.c @@ -187,7 +187,7 @@ static int __init sh7619_devices_setup(void) return platform_add_devices(sh7619_devices, ARRAY_SIZE(sh7619_devices)); } -__initcall(sh7619_devices_setup); +arch_initcall(sh7619_devices_setup); void __init plat_irq_setup(void) { diff --git a/arch/sh/kernel/cpu/sh2a/setup-mxg.c b/arch/sh/kernel/cpu/sh2a/setup-mxg.c index 869c2da4820..b6737644531 100644 --- a/arch/sh/kernel/cpu/sh2a/setup-mxg.c +++ b/arch/sh/kernel/cpu/sh2a/setup-mxg.c @@ -238,7 +238,7 @@ static int __init mxg_devices_setup(void) return platform_add_devices(mxg_devices, ARRAY_SIZE(mxg_devices)); } -__initcall(mxg_devices_setup); +arch_initcall(mxg_devices_setup); void __init plat_irq_setup(void) { diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7201.c b/arch/sh/kernel/cpu/sh2a/setup-sh7201.c index d8febe12806..fbde5b75deb 100644 --- a/arch/sh/kernel/cpu/sh2a/setup-sh7201.c +++ b/arch/sh/kernel/cpu/sh2a/setup-sh7201.c @@ -357,7 +357,7 @@ static int __init sh7201_devices_setup(void) return platform_add_devices(sh7201_devices, ARRAY_SIZE(sh7201_devices)); } -__initcall(sh7201_devices_setup); +arch_initcall(sh7201_devices_setup); void __init plat_irq_setup(void) { diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c index 62e3039d239..d3fd536c9a8 100644 --- a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c +++ b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c @@ -367,7 +367,7 @@ static int __init sh7203_devices_setup(void) return platform_add_devices(sh7203_devices, ARRAY_SIZE(sh7203_devices)); } -__initcall(sh7203_devices_setup); +arch_initcall(sh7203_devices_setup); void __init plat_irq_setup(void) { diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c index 3e6f3d7a58b..a9ccc5e8d9e 100644 --- a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c +++ b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c @@ -338,7 +338,7 @@ static int __init sh7206_devices_setup(void) return platform_add_devices(sh7206_devices, ARRAY_SIZE(sh7206_devices)); } -__initcall(sh7206_devices_setup); +arch_initcall(sh7206_devices_setup); void __init plat_irq_setup(void) { diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7705.c b/arch/sh/kernel/cpu/sh3/setup-sh7705.c index 88f742fed9e..c2310598387 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh7705.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh7705.c @@ -222,7 +222,7 @@ static int __init sh7705_devices_setup(void) return platform_add_devices(sh7705_devices, ARRAY_SIZE(sh7705_devices)); } -__initcall(sh7705_devices_setup); +arch_initcall(sh7705_devices_setup); static struct platform_device *sh7705_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c index c5630679858..347ab35d069 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c @@ -250,7 +250,7 @@ static int __init sh770x_devices_setup(void) return platform_add_devices(sh770x_devices, ARRAY_SIZE(sh770x_devices)); } -__initcall(sh770x_devices_setup); +arch_initcall(sh770x_devices_setup); static struct platform_device *sh770x_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7710.c b/arch/sh/kernel/cpu/sh3/setup-sh7710.c index efa76c8148f..717e90ae109 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh7710.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh7710.c @@ -226,7 +226,7 @@ static int __init sh7710_devices_setup(void) return platform_add_devices(sh7710_devices, ARRAY_SIZE(sh7710_devices)); } -__initcall(sh7710_devices_setup); +arch_initcall(sh7710_devices_setup); static struct platform_device *sh7710_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7720.c b/arch/sh/kernel/cpu/sh3/setup-sh7720.c index 5b2107798ed..74d8baaf8e9 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh7720.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh7720.c @@ -388,7 +388,7 @@ static int __init sh7720_devices_setup(void) return platform_add_devices(sh7720_devices, ARRAY_SIZE(sh7720_devices)); } -__initcall(sh7720_devices_setup); +arch_initcall(sh7720_devices_setup); static struct platform_device *sh7720_early_devices[] __initdata = { &cmt0_device, diff --git a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c index 6d088d12359..de4827df19a 100644 --- a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c +++ b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c @@ -138,7 +138,7 @@ static int __init sh4202_devices_setup(void) return platform_add_devices(sh4202_devices, ARRAY_SIZE(sh4202_devices)); } -__initcall(sh4202_devices_setup); +arch_initcall(sh4202_devices_setup); static struct platform_device *sh4202_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c index 851672d15cf..1b8b122e8f3 100644 --- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c +++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c @@ -239,7 +239,7 @@ static int __init sh7750_devices_setup(void) return platform_add_devices(sh7750_devices, ARRAY_SIZE(sh7750_devices)); } -__initcall(sh7750_devices_setup); +arch_initcall(sh7750_devices_setup); static struct platform_device *sh7750_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7760.c b/arch/sh/kernel/cpu/sh4/setup-sh7760.c index 5b822519bd9..7fbb7be9284 100644 --- a/arch/sh/kernel/cpu/sh4/setup-sh7760.c +++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c @@ -265,7 +265,7 @@ static int __init sh7760_devices_setup(void) return platform_add_devices(sh7760_devices, ARRAY_SIZE(sh7760_devices)); } -__initcall(sh7760_devices_setup); +arch_initcall(sh7760_devices_setup); static struct platform_device *sh7760_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7343.c b/arch/sh/kernel/cpu/sh4a/setup-sh7343.c index 6307e087c86..ac4d5672ec1 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7343.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7343.c @@ -325,7 +325,7 @@ static int __init sh7343_devices_setup(void) return platform_add_devices(sh7343_devices, ARRAY_SIZE(sh7343_devices)); } -__initcall(sh7343_devices_setup); +arch_initcall(sh7343_devices_setup); static struct platform_device *sh7343_early_devices[] __initdata = { &cmt_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c index c18f7d09281..1a956b1becc 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c @@ -318,7 +318,7 @@ static int __init sh7366_devices_setup(void) return platform_add_devices(sh7366_devices, ARRAY_SIZE(sh7366_devices)); } -__initcall(sh7366_devices_setup); +arch_initcall(sh7366_devices_setup); static struct platform_device *sh7366_early_devices[] __initdata = { &cmt_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c index ea524a2da3e..cda76ebf87c 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c @@ -359,7 +359,7 @@ static int __init sh7722_devices_setup(void) return platform_add_devices(sh7722_devices, ARRAY_SIZE(sh7722_devices)); } -__initcall(sh7722_devices_setup); +arch_initcall(sh7722_devices_setup); static struct platform_device *sh7722_early_devices[] __initdata = { &cmt_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c index e1bb80b2a27..b45dace9539 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c @@ -473,7 +473,7 @@ static int __init sh7723_devices_setup(void) return platform_add_devices(sh7723_devices, ARRAY_SIZE(sh7723_devices)); } -__initcall(sh7723_devices_setup); +arch_initcall(sh7723_devices_setup); static struct platform_device *sh7723_early_devices[] __initdata = { &cmt_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c index e5ac9eb11c6..a04edaab9a2 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c @@ -508,7 +508,7 @@ static int __init sh7724_devices_setup(void) return platform_add_devices(sh7724_devices, ARRAY_SIZE(sh7724_devices)); } -device_initcall(sh7724_devices_setup); +arch_initcall(sh7724_devices_setup); static struct platform_device *sh7724_early_devices[] __initdata = { &cmt_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c index f1e0c0d36da..4659fff6b84 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c @@ -314,7 +314,7 @@ static int __init sh7763_devices_setup(void) return platform_add_devices(sh7763_devices, ARRAY_SIZE(sh7763_devices)); } -__initcall(sh7763_devices_setup); +arch_initcall(sh7763_devices_setup); static struct platform_device *sh7763_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c index 1e86209db28..eead08d89d3 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c @@ -368,7 +368,7 @@ static int __init sh7770_devices_setup(void) return platform_add_devices(sh7770_devices, ARRAY_SIZE(sh7770_devices)); } -__initcall(sh7770_devices_setup); +arch_initcall(sh7770_devices_setup); static struct platform_device *sh7770_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c index 715e05b431e..2c901f44695 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c @@ -256,7 +256,7 @@ static int __init sh7780_devices_setup(void) return platform_add_devices(sh7780_devices, ARRAY_SIZE(sh7780_devices)); } -__initcall(sh7780_devices_setup); +arch_initcall(sh7780_devices_setup); static struct platform_device *sh7780_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c index af561402570..7f6c718b6c3 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c @@ -263,7 +263,7 @@ static int __init sh7785_devices_setup(void) return platform_add_devices(sh7785_devices, ARRAY_SIZE(sh7785_devices)); } -__initcall(sh7785_devices_setup); +arch_initcall(sh7785_devices_setup); static struct platform_device *sh7785_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c index b70049470a0..0104a8ec536 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c @@ -547,7 +547,7 @@ static int __init sh7786_devices_setup(void) return platform_add_devices(sh7786_devices, ARRAY_SIZE(sh7786_devices)); } -device_initcall(sh7786_devices_setup); +arch_initcall(sh7786_devices_setup); void __init plat_early_device_setup(void) { diff --git a/arch/sh/kernel/cpu/sh4a/setup-shx3.c b/arch/sh/kernel/cpu/sh4a/setup-shx3.c index 53c65fd9cce..07f078961c7 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-shx3.c +++ b/arch/sh/kernel/cpu/sh4a/setup-shx3.c @@ -256,7 +256,7 @@ static int __init shx3_devices_setup(void) return platform_add_devices(shx3_devices, ARRAY_SIZE(shx3_devices)); } -__initcall(shx3_devices_setup); +arch_initcall(shx3_devices_setup); void __init plat_early_device_setup(void) { diff --git a/arch/sh/kernel/cpu/sh5/setup-sh5.c b/arch/sh/kernel/cpu/sh5/setup-sh5.c index f5ff1ac57fc..6a0f82f7003 100644 --- a/arch/sh/kernel/cpu/sh5/setup-sh5.c +++ b/arch/sh/kernel/cpu/sh5/setup-sh5.c @@ -186,7 +186,7 @@ static int __init sh5_devices_setup(void) return platform_add_devices(sh5_devices, ARRAY_SIZE(sh5_devices)); } -__initcall(sh5_devices_setup); +arch_initcall(sh5_devices_setup); void __init plat_early_device_setup(void) { -- cgit v1.2.3-70-g09d2 From ba3a17019181af5d6ab898760620c4e9916396c2 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Thu, 13 Aug 2009 11:39:02 +0900 Subject: sh: fix i2c init order on Migo-R V2 Convert the Migo-R board code to register devices at arch_initcall() time instead of __initcall(). This fix unbreaks migor_ts touch screen driver support. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/sh/boards/mach-migor/setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c index f70f4644deb..f9b2e4df35b 100644 --- a/arch/sh/boards/mach-migor/setup.c +++ b/arch/sh/boards/mach-migor/setup.c @@ -608,7 +608,7 @@ static int __init migor_devices_setup(void) return platform_add_devices(migor_devices, ARRAY_SIZE(migor_devices)); } -__initcall(migor_devices_setup); +arch_initcall(migor_devices_setup); /* Return the board specific boot mode pin configuration */ static int migor_mode_pins(void) -- cgit v1.2.3-70-g09d2 From dbefd606a3b3634799b625f4900336e61c89e868 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Fri, 7 Aug 2009 03:52:18 +0000 Subject: sh: fix i2c init order on ap325rxa V2 Convert the AP325RXA board code to register devices at arch_initcall() time instead of device_initcall(). This fix unbreaks pcf8563 RTC driver support. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/sh/boards/board-ap325rxa.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/sh/boards/board-ap325rxa.c b/arch/sh/boards/board-ap325rxa.c index 7ffd1b4315b..b9c88cc519e 100644 --- a/arch/sh/boards/board-ap325rxa.c +++ b/arch/sh/boards/board-ap325rxa.c @@ -547,7 +547,7 @@ static int __init ap325rxa_devices_setup(void) return platform_add_devices(ap325rxa_devices, ARRAY_SIZE(ap325rxa_devices)); } -device_initcall(ap325rxa_devices_setup); +arch_initcall(ap325rxa_devices_setup); /* Return the board specific boot mode pin configuration */ static int ap325rxa_mode_pins(void) -- cgit v1.2.3-70-g09d2 From 48ec45e725aa385d72bced73b267dfaf13351876 Mon Sep 17 00:00:00 2001 From: Davide Rizzo Date: Thu, 13 Aug 2009 11:53:53 +0200 Subject: ARM: S3C24XX: Fix clkout mpx error Bug correction: CLK Outputs cannot have XTAL as parent Signed-off-by: Davide Rizzo [ben-linux@fluff.org: updated patch subject] Signed-off-by: Ben Dooks --- arch/arm/plat-s3c24xx/clock-dclk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/plat-s3c24xx/clock-dclk.c b/arch/arm/plat-s3c24xx/clock-dclk.c index 5b75a797b5a..0afb217a775 100644 --- a/arch/arm/plat-s3c24xx/clock-dclk.c +++ b/arch/arm/plat-s3c24xx/clock-dclk.c @@ -129,7 +129,7 @@ static int s3c24xx_clkout_setparent(struct clk *clk, struct clk *parent) /* calculate the MISCCR setting for the clock */ - if (parent == &clk_xtal) + if (parent == &clk_mpll) source = S3C2410_MISCCR_CLK0_MPLL; else if (parent == &clk_upll) source = S3C2410_MISCCR_CLK0_UPLL; -- cgit v1.2.3-70-g09d2 From 74d46d6b2d23d44d72c37df4c6a5d2e782f7b088 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 21 Jul 2009 17:11:50 +0900 Subject: percpu, sparc64: fix sparse possible cpu map handling percpu code has been assuming num_possible_cpus() == nr_cpu_ids which is incorrect if cpu_possible_map contains holes. This causes percpu code to access beyond allocated memories and vmalloc areas. On a sparc64 machine with cpus 0 and 2 (u60), this triggers the following warning or fails boot. WARNING: at /devel/tj/os/work/mm/vmalloc.c:106 vmap_page_range_noflush+0x1f0/0x240() Modules linked in: Call Trace: [00000000004b17d0] vmap_page_range_noflush+0x1f0/0x240 [00000000004b1840] map_vm_area+0x20/0x60 [00000000004b1950] __vmalloc_area_node+0xd0/0x160 [0000000000593434] deflate_init+0x14/0xe0 [0000000000583b94] __crypto_alloc_tfm+0xd4/0x1e0 [00000000005844f0] crypto_alloc_base+0x50/0xa0 [000000000058b898] alg_test_comp+0x18/0x80 [000000000058dad4] alg_test+0x54/0x180 [000000000058af00] cryptomgr_test+0x40/0x60 [0000000000473098] kthread+0x58/0x80 [000000000042b590] kernel_thread+0x30/0x60 [0000000000472fd0] kthreadd+0xf0/0x160 ---[ end trace 429b268a213317ba ]--- This patch fixes generic percpu functions and sparc64 setup_per_cpu_areas() so that they handle sparse cpu_possible_map properly. Please note that on x86, cpu_possible_map() doesn't contain holes and thus num_possible_cpus() == nr_cpu_ids and this patch doesn't cause any behavior difference. Signed-off-by: Tejun Heo Acked-by: David S. Miller Cc: Ingo Molnar --- arch/sparc/kernel/smp_64.c | 4 ++-- arch/x86/kernel/setup_percpu.c | 14 +++++++------- mm/percpu.c | 33 ++++++++++++++++++--------------- 3 files changed, 27 insertions(+), 24 deletions(-) (limited to 'arch') diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index fa44eaf8d89..3691907a43b 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -1499,7 +1499,7 @@ void __init setup_per_cpu_areas(void) dyn_size = pcpur_size - static_size - PERCPU_MODULE_RESERVE; - ptrs_size = PFN_ALIGN(num_possible_cpus() * sizeof(pcpur_ptrs[0])); + ptrs_size = PFN_ALIGN(nr_cpu_ids * sizeof(pcpur_ptrs[0])); pcpur_ptrs = alloc_bootmem(ptrs_size); for_each_possible_cpu(cpu) { @@ -1514,7 +1514,7 @@ void __init setup_per_cpu_areas(void) /* allocate address and map */ vm.flags = VM_ALLOC; - vm.size = num_possible_cpus() * PCPU_CHUNK_SIZE; + vm.size = nr_cpu_ids * PCPU_CHUNK_SIZE; vm_area_register_early(&vm, PCPU_CHUNK_SIZE); for_each_possible_cpu(cpu) { diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index 29a3eef7cf4..07d81916f21 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -165,7 +165,7 @@ static ssize_t __init setup_pcpu_lpage(size_t static_size, bool chosen) if (!chosen) { size_t vm_size = VMALLOC_END - VMALLOC_START; - size_t tot_size = num_possible_cpus() * PMD_SIZE; + size_t tot_size = nr_cpu_ids * PMD_SIZE; /* on non-NUMA, embedding is better */ if (!pcpu_need_numa()) @@ -199,7 +199,7 @@ static ssize_t __init setup_pcpu_lpage(size_t static_size, bool chosen) dyn_size = pcpul_size - static_size - PERCPU_FIRST_CHUNK_RESERVE; /* allocate pointer array and alloc large pages */ - map_size = PFN_ALIGN(num_possible_cpus() * sizeof(pcpul_map[0])); + map_size = PFN_ALIGN(nr_cpu_ids * sizeof(pcpul_map[0])); pcpul_map = alloc_bootmem(map_size); for_each_possible_cpu(cpu) { @@ -228,7 +228,7 @@ static ssize_t __init setup_pcpu_lpage(size_t static_size, bool chosen) /* allocate address and map */ pcpul_vm.flags = VM_ALLOC; - pcpul_vm.size = num_possible_cpus() * PMD_SIZE; + pcpul_vm.size = nr_cpu_ids * PMD_SIZE; vm_area_register_early(&pcpul_vm, PMD_SIZE); for_each_possible_cpu(cpu) { @@ -250,8 +250,8 @@ static ssize_t __init setup_pcpu_lpage(size_t static_size, bool chosen) PMD_SIZE, pcpul_vm.addr, NULL); /* sort pcpul_map array for pcpu_lpage_remapped() */ - for (i = 0; i < num_possible_cpus() - 1; i++) - for (j = i + 1; j < num_possible_cpus(); j++) + for (i = 0; i < nr_cpu_ids - 1; i++) + for (j = i + 1; j < nr_cpu_ids; j++) if (pcpul_map[i].ptr > pcpul_map[j].ptr) { struct pcpul_ent tmp = pcpul_map[i]; pcpul_map[i] = pcpul_map[j]; @@ -288,7 +288,7 @@ void *pcpu_lpage_remapped(void *kaddr) { void *pmd_addr = (void *)((unsigned long)kaddr & PMD_MASK); unsigned long offset = (unsigned long)kaddr & ~PMD_MASK; - int left = 0, right = num_possible_cpus() - 1; + int left = 0, right = nr_cpu_ids - 1; int pos; /* pcpul in use at all? */ @@ -377,7 +377,7 @@ static ssize_t __init setup_pcpu_4k(size_t static_size) pcpu4k_nr_static_pages = PFN_UP(static_size); /* unaligned allocations can't be freed, round up to page size */ - pages_size = PFN_ALIGN(pcpu4k_nr_static_pages * num_possible_cpus() + pages_size = PFN_ALIGN(pcpu4k_nr_static_pages * nr_cpu_ids * sizeof(pcpu4k_pages[0])); pcpu4k_pages = alloc_bootmem(pages_size); diff --git a/mm/percpu.c b/mm/percpu.c index b70f2acd885..e0be1146f61 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -8,12 +8,12 @@ * * This is percpu allocator which can handle both static and dynamic * areas. Percpu areas are allocated in chunks in vmalloc area. Each - * chunk is consisted of num_possible_cpus() units and the first chunk - * is used for static percpu variables in the kernel image (special - * boot time alloc/init handling necessary as these areas need to be - * brought up before allocation services are running). Unit grows as - * necessary and all units grow or shrink in unison. When a chunk is - * filled up, another chunk is allocated. ie. in vmalloc area + * chunk is consisted of nr_cpu_ids units and the first chunk is used + * for static percpu variables in the kernel image (special boot time + * alloc/init handling necessary as these areas need to be brought up + * before allocation services are running). Unit grows as necessary + * and all units grow or shrink in unison. When a chunk is filled up, + * another chunk is allocated. ie. in vmalloc area * * c0 c1 c2 * ------------------- ------------------- ------------ @@ -558,7 +558,7 @@ static void pcpu_free_area(struct pcpu_chunk *chunk, int freeme) static void pcpu_unmap(struct pcpu_chunk *chunk, int page_start, int page_end, bool flush_tlb) { - unsigned int last = num_possible_cpus() - 1; + unsigned int last = nr_cpu_ids - 1; unsigned int cpu; /* unmap must not be done on immutable chunk */ @@ -643,7 +643,7 @@ static void pcpu_depopulate_chunk(struct pcpu_chunk *chunk, int off, int size, */ static int pcpu_map(struct pcpu_chunk *chunk, int page_start, int page_end) { - unsigned int last = num_possible_cpus() - 1; + unsigned int last = nr_cpu_ids - 1; unsigned int cpu; int err; @@ -1067,9 +1067,9 @@ size_t __init pcpu_setup_first_chunk(pcpu_get_page_fn_t get_page_fn, PFN_UP(size_sum)); pcpu_unit_size = pcpu_unit_pages << PAGE_SHIFT; - pcpu_chunk_size = num_possible_cpus() * pcpu_unit_size; + pcpu_chunk_size = nr_cpu_ids * pcpu_unit_size; pcpu_chunk_struct_size = sizeof(struct pcpu_chunk) - + num_possible_cpus() * pcpu_unit_pages * sizeof(struct page *); + + nr_cpu_ids * pcpu_unit_pages * sizeof(struct page *); if (dyn_size < 0) dyn_size = pcpu_unit_size - static_size - reserved_size; @@ -1248,7 +1248,7 @@ ssize_t __init pcpu_embed_first_chunk(size_t static_size, size_t reserved_size, } else pcpue_unit_size = max_t(size_t, pcpue_size, PCPU_MIN_UNIT_SIZE); - chunk_size = pcpue_unit_size * num_possible_cpus(); + chunk_size = pcpue_unit_size * nr_cpu_ids; pcpue_ptr = __alloc_bootmem_nopanic(chunk_size, PAGE_SIZE, __pa(MAX_DMA_ADDRESS)); @@ -1259,12 +1259,15 @@ ssize_t __init pcpu_embed_first_chunk(size_t static_size, size_t reserved_size, } /* return the leftover and copy */ - for_each_possible_cpu(cpu) { + for (cpu = 0; cpu < nr_cpu_ids; cpu++) { void *ptr = pcpue_ptr + cpu * pcpue_unit_size; - free_bootmem(__pa(ptr + pcpue_size), - pcpue_unit_size - pcpue_size); - memcpy(ptr, __per_cpu_load, static_size); + if (cpu_possible(cpu)) { + free_bootmem(__pa(ptr + pcpue_size), + pcpue_unit_size - pcpue_size); + memcpy(ptr, __per_cpu_load, static_size); + } else + free_bootmem(__pa(ptr), pcpue_unit_size); } /* we're ready, commit */ -- cgit v1.2.3-70-g09d2 From 563abb4be1a79e7b64784d43beb9d0cacb1bad6f Mon Sep 17 00:00:00 2001 From: Valentin Longchamp Date: Tue, 11 Aug 2009 17:29:21 +0200 Subject: mx31moboard: invert sdhc ro signal sense Small confusion with our hardware engineer, the WP signal (RO) is active low on our boards, the signal has to inverted. This is a pretty straightforward patch, it could even go to -rc, but if not, then push it for 2.6.32. Signed-off-by: Valentin Longchamp Signed-off-by: Sascha Hauer --- arch/arm/mach-mx3/mx31moboard-devboard.c | 2 +- arch/arm/mach-mx3/mx31moboard-marxbot.c | 2 +- arch/arm/mach-mx3/mx31moboard.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-mx3/mx31moboard-devboard.c b/arch/arm/mach-mx3/mx31moboard-devboard.c index 4704405165a..b48581e7ded 100644 --- a/arch/arm/mach-mx3/mx31moboard-devboard.c +++ b/arch/arm/mach-mx3/mx31moboard-devboard.c @@ -63,7 +63,7 @@ static struct imxuart_platform_data uart_pdata = { static int devboard_sdhc2_get_ro(struct device *dev) { - return gpio_get_value(SDHC2_WP); + return !gpio_get_value(SDHC2_WP); } static int devboard_sdhc2_init(struct device *dev, irq_handler_t detect_irq, diff --git a/arch/arm/mach-mx3/mx31moboard-marxbot.c b/arch/arm/mach-mx3/mx31moboard-marxbot.c index 641c3d6153a..901fb0166c0 100644 --- a/arch/arm/mach-mx3/mx31moboard-marxbot.c +++ b/arch/arm/mach-mx3/mx31moboard-marxbot.c @@ -67,7 +67,7 @@ static unsigned int marxbot_pins[] = { static int marxbot_sdhc2_get_ro(struct device *dev) { - return gpio_get_value(SDHC2_WP); + return !gpio_get_value(SDHC2_WP); } static int marxbot_sdhc2_init(struct device *dev, irq_handler_t detect_irq, diff --git a/arch/arm/mach-mx3/mx31moboard.c b/arch/arm/mach-mx3/mx31moboard.c index a17f2e41160..2a2da4739ec 100644 --- a/arch/arm/mach-mx3/mx31moboard.c +++ b/arch/arm/mach-mx3/mx31moboard.c @@ -94,7 +94,7 @@ static struct imxi2c_platform_data moboard_i2c1_pdata = { static int moboard_sdhc1_get_ro(struct device *dev) { - return gpio_get_value(SDHC1_WP); + return !gpio_get_value(SDHC1_WP); } static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq, -- cgit v1.2.3-70-g09d2 From 9747e78b304b44d6fb73e2c8071406d55aa8bb75 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Sat, 15 Aug 2009 02:53:34 +0000 Subject: sh: use in-soc KEYSC on se7724 This patch updates the Solution Engine 7724 board code to use in-SoC KEYSC resources for the keyboard platform device. Using the in-SoC key scan controller fixes a crash-during-resume issue. Without this patch the KEYSC hardware block located in the board specific FPGA is used together with an external IRQ which is routed through the FPGA and handled by some board specific demux code. This board specific FPGA interrupt code does not implement desc->set_wake() so the enable_irq_wake() call in the sh_keysc driver will fail at suspend-to-ram time and the disable_irq_wake() will bomb out when resuming. Changing the platform data to use the in-SoC KEYSC hardware makes the se7724 board support code less special which is a good thing. Also, the board specific KEYSC pin setup code selects in-SoC pin functions already which makes the current FPGA platform device data look like a typo. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/sh/boards/mach-se/7724/setup.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c index 8fed45a2fb8..15456a0773b 100644 --- a/arch/sh/boards/mach-se/7724/setup.c +++ b/arch/sh/boards/mach-se/7724/setup.c @@ -238,7 +238,7 @@ static struct platform_device ceu1_device = { }, }; -/* KEYSC */ +/* KEYSC in SoC (Needs SW33-2 set to ON) */ static struct sh_keysc_info keysc_info = { .mode = SH_KEYSC_MODE_1, .scan_timing = 10, @@ -255,12 +255,13 @@ static struct sh_keysc_info keysc_info = { static struct resource keysc_resources[] = { [0] = { - .start = 0x1a204000, - .end = 0x1a20400f, + .name = "KEYSC", + .start = 0x044b0000, + .end = 0x044b000f, .flags = IORESOURCE_MEM, }, [1] = { - .start = IRQ0_KEY, + .start = 79, .flags = IORESOURCE_IRQ, }, }; -- cgit v1.2.3-70-g09d2 From 237674e050ae8ea40a432412df6c15d60b7ae8a6 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Sat, 15 Aug 2009 02:53:42 +0000 Subject: sh: sh7724 ddr self-refresh changes This patch updates the SuperH Mobile sleep assembly code with support for DBSC memory controller found in the sh7724 processor. Without this fix the memory hooked up to the sh7724 processor will never enter self-refresh mode before suspending to ram. The effect of this is that the memory contents most likeley will be lost upon resume which may or may not be what you want. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/shmobile/sleep.S | 70 +++++++++++++++++++++++++++++++++++-- 1 file changed, 68 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/sh/kernel/cpu/shmobile/sleep.S b/arch/sh/kernel/cpu/shmobile/sleep.S index 5d888ef53d8..baf2d7d46b0 100644 --- a/arch/sh/kernel/cpu/shmobile/sleep.S +++ b/arch/sh/kernel/cpu/shmobile/sleep.S @@ -26,8 +26,30 @@ ENTRY(sh_mobile_standby) tst #SUSP_SH_SF, r0 bt skip_set_sf +#ifdef CONFIG_CPU_SUBTYPE_SH7724 + /* DBSC: put memory in self-refresh mode */ - /* SDRAM: disable power down and put in self-refresh mode */ + mov.l dben_reg, r4 + mov.l dben_data0, r1 + mov.l r1, @r4 + + mov.l dbrfpdn0_reg, r4 + mov.l dbrfpdn0_data0, r1 + mov.l r1, @r4 + + mov.l dbcmdcnt_reg, r4 + mov.l dbcmdcnt_data0, r1 + mov.l r1, @r4 + + mov.l dbcmdcnt_reg, r4 + mov.l dbcmdcnt_data1, r1 + mov.l r1, @r4 + + mov.l dbrfpdn0_reg, r4 + mov.l dbrfpdn0_data1, r1 + mov.l r1, @r4 +#else + /* SBSC: disable power down and put in self-refresh mode */ mov.l 1f, r4 mov.l 2f, r1 mov.l @r4, r2 @@ -35,6 +57,7 @@ ENTRY(sh_mobile_standby) mov.l 3f, r3 and r3, r2 mov.l r2, @r4 +#endif skip_set_sf: tst #SUSP_SH_SLEEP, r0 @@ -84,7 +107,36 @@ done_sleep: tst #SUSP_SH_SF, r0 bt skip_restore_sf - /* SDRAM: set auto-refresh mode */ +#ifdef CONFIG_CPU_SUBTYPE_SH7724 + /* DBSC: put memory in auto-refresh mode */ + + mov.l dbrfpdn0_reg, r4 + mov.l dbrfpdn0_data0, r1 + mov.l r1, @r4 + + /* sleep 140 ns */ + nop + nop + nop + nop + + mov.l dbcmdcnt_reg, r4 + mov.l dbcmdcnt_data0, r1 + mov.l r1, @r4 + + mov.l dbcmdcnt_reg, r4 + mov.l dbcmdcnt_data1, r1 + mov.l r1, @r4 + + mov.l dben_reg, r4 + mov.l dben_data1, r1 + mov.l r1, @r4 + + mov.l dbrfpdn0_reg, r4 + mov.l dbrfpdn0_data2, r1 + mov.l r1, @r4 +#else + /* SBSC: set auto-refresh mode */ mov.l 1f, r4 mov.l @r4, r2 mov.l 4f, r3 @@ -98,15 +150,29 @@ done_sleep: add r4, r3 or r2, r3 mov.l r3, @r1 +#endif skip_restore_sf: rts nop .balign 4 +#ifdef CONFIG_CPU_SUBTYPE_SH7724 +dben_reg: .long 0xfd000010 /* DBEN */ +dben_data0: .long 0 +dben_data1: .long 1 +dbrfpdn0_reg: .long 0xfd000040 /* DBRFPDN0 */ +dbrfpdn0_data0: .long 0 +dbrfpdn0_data1: .long 1 +dbrfpdn0_data2: .long 0x00010000 +dbcmdcnt_reg: .long 0xfd000014 /* DBCMDCNT */ +dbcmdcnt_data0: .long 2 +dbcmdcnt_data1: .long 4 +#else 1: .long 0xfe400008 /* SDCR0 */ 2: .long 0x00000400 3: .long 0xffff7fff 4: .long 0xfffffbff +#endif 5: .long 0xa4150020 /* STBCR */ 6: .long 0xfe40001c /* RTCOR */ 7: .long 0xfe400018 /* RTCNT */ -- cgit v1.2.3-70-g09d2 From 3ef12c3c97603bad405d30c989718cc9405e2759 Mon Sep 17 00:00:00 2001 From: Cliff Wickman Date: Fri, 14 Aug 2009 13:56:37 -0500 Subject: x86: Fix UV BAU destination subnode id The SGI UV Broadcast Assist Unit is used to send TLB shootdown messages to remote nodes of the system. The header of the message must contain the subnode id of the block in the receiving hub that handles such messages. It should always be 0x10, the id of the "LB" block. It had previously been documented as a "must be zero" field. Signed-off-by: Cliff Wickman Acked-by: Jack Steiner LKML-Reference: Signed-off-by: Ingo Molnar --- arch/x86/include/asm/uv/uv_bau.h | 2 +- arch/x86/kernel/tlb_uv.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/x86/include/asm/uv/uv_bau.h b/arch/x86/include/asm/uv/uv_bau.h index bddd44f2f0a..80e2984f521 100644 --- a/arch/x86/include/asm/uv/uv_bau.h +++ b/arch/x86/include/asm/uv/uv_bau.h @@ -133,7 +133,7 @@ struct bau_msg_payload { * see table 4.2.3.0.1 in broacast_assist spec. */ struct bau_msg_header { - unsigned int dest_subnodeid:6; /* must be zero */ + unsigned int dest_subnodeid:6; /* must be 0x10, for the LB */ /* bits 5:0 */ unsigned int base_dest_nodeid:15; /* nasid>>1 (pnode) of */ /* bits 20:6 */ /* first bit in node_map */ diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c index 8ccabb8a2f6..77b9689f8ed 100644 --- a/arch/x86/kernel/tlb_uv.c +++ b/arch/x86/kernel/tlb_uv.c @@ -744,6 +744,7 @@ uv_activation_descriptor_init(int node, int pnode) * note that base_dest_nodeid is actually a nasid. */ ad2->header.base_dest_nodeid = uv_partition_base_pnode << 1; + ad2->header.dest_subnodeid = 0x10; /* the LB */ ad2->header.command = UV_NET_ENDPOINT_INTD; ad2->header.int_both = 1; /* -- cgit v1.2.3-70-g09d2 From dde5828f56cb2c1aa70365c476e6830482127258 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 15 Aug 2009 12:36:00 +0100 Subject: ARM: Fix broken highmem support Currently, highmem is selectable, and you can request an increased vmalloc area. However, none of this has any effect on the memory layout since a patch in the highmem series was accidentally dropped. Moreover, even if you did want highmem, all memory would still be registered as lowmem, possibly resulting in overflow of the available virtual mapping space. The highmem boundary is determined by the highest allowed beginning of the vmalloc area, which depends on its configurable minimum size (see commit 60296c71f6c5063e3c1f1d2619ca0b60940162e7 for details on this). We should create mappings and initialize bootmem only for low memory, while the zone allocator must still be told about highmem. Currently, memory nodes which are completely located in high memory are not supported. This is not a huge limitation since systems relying on highmem support are unlikely to have discontiguous memory with large holes. [ A similar patch was meant to be merged before commit 5f0fbf9ecaf3 and be available in Linux v2.6.30, however some git rebase screw-up of mine dropped the first commit of the series, and that goofage escaped testing somehow as well. -- Nico ] Signed-off-by: Russell King Reviewed-by: Nicolas Pitre --- arch/arm/include/asm/setup.h | 3 +- arch/arm/mm/init.c | 118 ++++++++++++++++++++++++++----------------- arch/arm/mm/mmu.c | 9 +++- 3 files changed, 83 insertions(+), 47 deletions(-) (limited to 'arch') diff --git a/arch/arm/include/asm/setup.h b/arch/arm/include/asm/setup.h index ee1304f22f9..5ccce0a9b03 100644 --- a/arch/arm/include/asm/setup.h +++ b/arch/arm/include/asm/setup.h @@ -201,7 +201,8 @@ static struct tagtable __tagtable_##fn __tag = { tag, fn } struct membank { unsigned long start; unsigned long size; - int node; + unsigned short node; + unsigned short highmem; }; struct meminfo { diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 8277802ec85..3a7279c1ce5 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -120,6 +120,32 @@ void show_mem(void) printk("%d pages swap cached\n", cached); } +static void __init find_node_limits(int node, struct meminfo *mi, + unsigned long *min, unsigned long *max_low, unsigned long *max_high) +{ + int i; + + *min = -1UL; + *max_low = *max_high = 0; + + for_each_nodebank(i, mi, node) { + struct membank *bank = &mi->bank[i]; + unsigned long start, end; + + start = bank_pfn_start(bank); + end = bank_pfn_end(bank); + + if (*min > start) + *min = start; + if (*max_high < end) + *max_high = end; + if (bank->highmem) + continue; + if (*max_low < end) + *max_low = end; + } +} + /* * FIXME: We really want to avoid allocating the bootmap bitmap * over the top of the initrd. Hopefully, this is located towards @@ -210,40 +236,24 @@ static inline void map_memory_bank(struct membank *bank) #endif } -static unsigned long __init bootmem_init_node(int node, struct meminfo *mi) +static void __init bootmem_init_node(int node, struct meminfo *mi, + unsigned long start_pfn, unsigned long end_pfn) { - unsigned long start_pfn, end_pfn, boot_pfn; + unsigned long boot_pfn; unsigned int boot_pages; pg_data_t *pgdat; int i; - start_pfn = -1UL; - end_pfn = 0; - /* - * Calculate the pfn range, and map the memory banks for this node. + * Map the memory banks for this node. */ for_each_nodebank(i, mi, node) { struct membank *bank = &mi->bank[i]; - unsigned long start, end; - start = bank_pfn_start(bank); - end = bank_pfn_end(bank); - - if (start_pfn > start) - start_pfn = start; - if (end_pfn < end) - end_pfn = end; - - map_memory_bank(bank); + if (!bank->highmem) + map_memory_bank(bank); } - /* - * If there is no memory in this node, ignore it. - */ - if (end_pfn == 0) - return end_pfn; - /* * Allocate the bootmem bitmap page. */ @@ -260,7 +270,8 @@ static unsigned long __init bootmem_init_node(int node, struct meminfo *mi) for_each_nodebank(i, mi, node) { struct membank *bank = &mi->bank[i]; - free_bootmem_node(pgdat, bank_phys_start(bank), bank_phys_size(bank)); + if (!bank->highmem) + free_bootmem_node(pgdat, bank_phys_start(bank), bank_phys_size(bank)); memory_present(node, bank_pfn_start(bank), bank_pfn_end(bank)); } @@ -269,8 +280,6 @@ static unsigned long __init bootmem_init_node(int node, struct meminfo *mi) */ reserve_bootmem_node(pgdat, boot_pfn << PAGE_SHIFT, boot_pages << PAGE_SHIFT, BOOTMEM_DEFAULT); - - return end_pfn; } static void __init bootmem_reserve_initrd(int node) @@ -297,33 +306,39 @@ static void __init bootmem_reserve_initrd(int node) static void __init bootmem_free_node(int node, struct meminfo *mi) { unsigned long zone_size[MAX_NR_ZONES], zhole_size[MAX_NR_ZONES]; - unsigned long start_pfn, end_pfn; - pg_data_t *pgdat = NODE_DATA(node); + unsigned long min, max_low, max_high; int i; - start_pfn = pgdat->bdata->node_min_pfn; - end_pfn = pgdat->bdata->node_low_pfn; + find_node_limits(node, mi, &min, &max_low, &max_high); /* * initialise the zones within this node. */ memset(zone_size, 0, sizeof(zone_size)); - memset(zhole_size, 0, sizeof(zhole_size)); /* * The size of this node has already been determined. If we need * to do anything fancy with the allocation of this memory to the * zones, now is the time to do it. */ - zone_size[0] = end_pfn - start_pfn; + zone_size[0] = max_low - min; +#ifdef CONFIG_HIGHMEM + zone_size[ZONE_HIGHMEM] = max_high - max_low; +#endif /* * For each bank in this node, calculate the size of the holes. * holes = node_size - sum(bank_sizes_in_node) */ - zhole_size[0] = zone_size[0]; - for_each_nodebank(i, mi, node) - zhole_size[0] -= bank_pfn_size(&mi->bank[i]); + memcpy(zhole_size, zone_size, sizeof(zhole_size)); + for_each_nodebank(i, mi, node) { + int idx = 0; +#ifdef CONFIG_HIGHMEM + if (mi->bank[i].highmem) + idx = ZONE_HIGHMEM; +#endif + zhole_size[idx] -= bank_pfn_size(&mi->bank[i]); + } /* * Adjust the sizes according to any special requirements for @@ -331,13 +346,13 @@ static void __init bootmem_free_node(int node, struct meminfo *mi) */ arch_adjust_zones(node, zone_size, zhole_size); - free_area_init_node(node, zone_size, start_pfn, zhole_size); + free_area_init_node(node, zone_size, min, zhole_size); } void __init bootmem_init(void) { struct meminfo *mi = &meminfo; - unsigned long memend_pfn = 0; + unsigned long min, max_low, max_high; int node, initrd_node; /* @@ -345,11 +360,29 @@ void __init bootmem_init(void) */ initrd_node = check_initrd(mi); + max_low = max_high = 0; + /* * Run through each node initialising the bootmem allocator. */ for_each_node(node) { - unsigned long end_pfn = bootmem_init_node(node, mi); + unsigned long node_low, node_high; + + find_node_limits(node, mi, &min, &node_low, &node_high); + + if (node_low > max_low) + max_low = node_low; + if (node_high > max_high) + max_high = node_high; + + /* + * If there is no memory in this node, ignore it. + * (We can't have nodes which have no lowmem) + */ + if (node_low == 0) + continue; + + bootmem_init_node(node, mi, min, node_low); /* * Reserve any special node zero regions. @@ -362,12 +395,6 @@ void __init bootmem_init(void) */ if (node == initrd_node) bootmem_reserve_initrd(node); - - /* - * Remember the highest memory PFN. - */ - if (end_pfn > memend_pfn) - memend_pfn = end_pfn; } /* @@ -383,7 +410,7 @@ void __init bootmem_init(void) for_each_node(node) bootmem_free_node(node, mi); - high_memory = __va((memend_pfn << PAGE_SHIFT) - 1) + 1; + high_memory = __va((max_low << PAGE_SHIFT) - 1) + 1; /* * This doesn't seem to be used by the Linux memory manager any @@ -393,7 +420,8 @@ void __init bootmem_init(void) * Note: max_low_pfn and max_pfn reflect the number of _pages_ in * the system, not the maximum PFN. */ - max_pfn = max_low_pfn = memend_pfn - PHYS_PFN_OFFSET; + max_low_pfn = max_low - PHYS_PFN_OFFSET; + max_pfn = max_high - PHYS_PFN_OFFSET; } static inline int free_area(unsigned long pfn, unsigned long end, char *s) diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 4722582b17b..4426ee67cec 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -687,13 +687,19 @@ __early_param("vmalloc=", early_vmalloc); static void __init sanity_check_meminfo(void) { - int i, j; + int i, j, highmem = 0; for (i = 0, j = 0; i < meminfo.nr_banks; i++) { struct membank *bank = &meminfo.bank[j]; *bank = meminfo.bank[i]; #ifdef CONFIG_HIGHMEM + if (__va(bank->start) > VMALLOC_MIN || + __va(bank->start) < (void *)PAGE_OFFSET) + highmem = 1; + + bank->highmem = highmem; + /* * Split those memory banks which are partially overlapping * the vmalloc area greatly simplifying things later. @@ -714,6 +720,7 @@ static void __init sanity_check_meminfo(void) i++; bank[1].size -= VMALLOC_MIN - __va(bank->start); bank[1].start = __pa(VMALLOC_MIN - 1) + 1; + bank[1].highmem = highmem = 1; j++; } bank->size = VMALLOC_MIN - __va(bank->start); -- cgit v1.2.3-70-g09d2 From a2bb9f4d6a5a589b481595207ac3588cc08d1b60 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 13 Aug 2009 21:57:22 +0100 Subject: ARM: 5673/1: U300 fix initsection compile warning The u300_init_check_chip() function was not properly tagged with the __init macro and provided a initsection mismatch on compilation. Signed-off-by: Linus Walleij Signed-off-by: Russell King --- arch/arm/mach-u300/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c index 7936085dd75..2e9b8ccd8ec 100644 --- a/arch/arm/mach-u300/core.c +++ b/arch/arm/mach-u300/core.c @@ -510,7 +510,7 @@ static struct db_chip db_chips[] __initdata = { } }; -static void u300_init_check_chip(void) +static void __init u300_init_check_chip(void) { u16 val; -- cgit v1.2.3-70-g09d2 From 4e5c25d405e18a2f279ca2bfc855508ec3a0186b Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Sun, 16 Aug 2009 15:54:37 +0100 Subject: x86, mce: therm_throt: Don't log redundant normality 0d01f31439c1e4d602bf9fdc924ab66f407f5e38 "x86, mce: therm_throt - change when we print messages" removed redundant announcements of "Temperature/speed normal". They're not worth logging and remove their accompanying "Machine check events logged" messages as well from the console. Signed-off-by: Hugh Dickins Cc: Hidetoshi Seto Cc: Andi Kleen Cc: Dmitry Torokhov LKML-Reference: Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/mcheck/therm_throt.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c index 8bc64cfbe93..5957a93e517 100644 --- a/arch/x86/kernel/cpu/mcheck/therm_throt.c +++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c @@ -116,11 +116,14 @@ static int therm_throt_process(int curr) cpu, __get_cpu_var(thermal_throttle_count)); add_taint(TAINT_MACHINE_CHECK); - } else if (was_throttled) { + return 1; + } + if (was_throttled) { printk(KERN_INFO "CPU%d: Temperature/speed normal\n", cpu); + return 1; } - return 1; + return 0; } #ifdef CONFIG_SYSFS -- cgit v1.2.3-70-g09d2 From 52459ab91363343af8ae252766e9da762344a2e7 Mon Sep 17 00:00:00 2001 From: Leonardo Potenza Date: Sun, 16 Aug 2009 18:55:48 +0200 Subject: x86: Annotate section mismatch warnings in kernel/apic/x2apic_uv_x.c The function uv_acpi_madt_oem_check() has been marked __init, the struct apic_x2apic_uv_x has been marked __refdata. The aim is to address the following section mismatch messages: WARNING: arch/x86/kernel/apic/built-in.o(.data+0x1368): Section mismatch in reference from the variable apic_x2apic_uv_x to the function .cpuinit.text:uv_wakeup_secondary() The variable apic_x2apic_uv_x references the function __cpuinit uv_wakeup_secondary() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: arch/x86/kernel/built-in.o(.data+0x68e8): Section mismatch in reference from the variable apic_x2apic_uv_x to the function .cpuinit.text:uv_wakeup_secondary() The variable apic_x2apic_uv_x references the function __cpuinit uv_wakeup_secondary() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: arch/x86/built-in.o(.text+0x7b36f): Section mismatch in reference from the function uv_acpi_madt_oem_check() to the function .init.text:early_ioremap() The function uv_acpi_madt_oem_check() references the function __init early_ioremap(). This is often because uv_acpi_madt_oem_check lacks a __init annotation or the annotation of early_ioremap is wrong. WARNING: arch/x86/built-in.o(.text+0x7b38d): Section mismatch in reference from the function uv_acpi_madt_oem_check() to the function .init.text:early_iounmap() The function uv_acpi_madt_oem_check() references the function __init early_iounmap(). This is often because uv_acpi_madt_oem_check lacks a __init annotation or the annotation of early_iounmap is wrong. WARNING: arch/x86/built-in.o(.data+0x8668): Section mismatch in reference from the variable apic_x2apic_uv_x to the function .cpuinit.text:uv_wakeup_secondary() The variable apic_x2apic_uv_x references the function __cpuinit uv_wakeup_secondary() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, Signed-off-by: Leonardo Potenza LKML-Reference: <200908161855.48302.lpotenza@inwind.it> Signed-off-by: Ingo Molnar --- arch/x86/kernel/apic/x2apic_uv_x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index 832e908adcb..601159374e8 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -46,7 +46,7 @@ static int early_get_nodeid(void) return node_id.s.node_id; } -static int uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id) +static int __init uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id) { if (!strcmp(oem_id, "SGI")) { if (!strcmp(oem_table_id, "UVL")) @@ -253,7 +253,7 @@ static void uv_send_IPI_self(int vector) apic_write(APIC_SELF_IPI, vector); } -struct apic apic_x2apic_uv_x = { +struct apic __refdata apic_x2apic_uv_x = { .name = "UV large system", .probe = NULL, -- cgit v1.2.3-70-g09d2 From c7f6fa44115d401e89db730f357629d39f8e4ba6 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 28 Jul 2009 23:52:54 +0200 Subject: x86, mce: don't log boot MCEs on Pentium M (model == 13) CPUs On my legacy Pentium M laptop (Acer Extensa 2900) I get bogus MCE on a cold boot with CONFIG_X86_NEW_MCE enabled, i.e. (after decoding it with mcelog): MCE 0 HARDWARE ERROR. This is *NOT* a software problem! Please contact your hardware vendor CPU 0 BANK 1 MCG status: MCi status: Error overflow Uncorrected error Error enabled Processor context corrupt MCA: Data CACHE Level-1 UNKNOWN Error STATUS f200000000000195 MCGSTATUS 0 [ The other STATUS values observed: f2000000000001b5 (... UNKNOWN error) and f200000000000115 (... READ Error). To verify that this is not a CONFIG_X86_NEW_MCE bug I also modified the CONFIG_X86_OLD_MCE code (which doesn't log any MCEs) to dump content of STATUS MSR before it is cleared during initialization. ] Since the bogus MCE results in a kernel taint (which in turn disables lockdep support) don't log boot MCEs on Pentium M (model == 13) CPUs by default ("mce=bootlog" boot parameter can be be used to get the old behavior). Signed-off-by: Bartlomiej Zolnierkiewicz Reviewed-by: Andi Kleen Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/mcheck/mce.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch') diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 1cfb623ce11..a0c2910d96a 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -1273,6 +1273,10 @@ static void mce_cpu_quirks(struct cpuinfo_x86 *c) if ((c->x86 > 6 || (c->x86 == 6 && c->x86_model >= 0xe)) && monarch_timeout < 0) monarch_timeout = USEC_PER_SEC; + + /* There are also broken BIOSes on some Pentium M systems. */ + if (c->x86 == 6 && c->x86_model == 13 && mce_bootlog < 0) + mce_bootlog = 0; } if (monarch_timeout < 0) monarch_timeout = 0; -- cgit v1.2.3-70-g09d2 From e412cd257e0d51e0ecbb89f50953835b5a0681b2 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 17 Aug 2009 10:19:00 +0200 Subject: x86, mce: Don't initialize MCEs on unknown CPUs An older test-box started hanging at the following point during bootup: [ 0.022996] Mount-cache hash table entries: 512 [ 0.024996] Initializing cgroup subsys debug [ 0.025996] Initializing cgroup subsys cpuacct [ 0.026995] Initializing cgroup subsys devices [ 0.027995] Initializing cgroup subsys freezer [ 0.028995] mce: CPU supports 5 MCE banks I've bisected it down to commit 4efc0670 ("x86, mce: use 64bit machine check code on 32bit"), which utilizes the MCE code on 32-bit systems too. The problem is caused by this detail in my config: # CONFIG_CPU_SUP_INTEL is not set This disables the quirks in mce_cpu_quirks() but still enables MCE support - which then hangs due to the missing quirk workaround needed on this CPU: if (c->x86 == 6 && c->x86_model < 0x1A && banks > 0) mce_banks[0].init = 0; The safe solution is to not initialize MCEs if we dont know on what CPU we are running (or if that CPU's support code got disabled in the config). Also be a bit more defensive on 32-bit systems: dont do a boot-time dump of pending MCEs not just on the specific system that we found a problem with (Pentium-M), but earlier ones as well. Now this problem is probably not common and disabling CPU support is rare - but still being more defensive in something we turned on for a wide range of CPUs is prudent. Cc: Hidetoshi Seto LKML-Reference: Message-ID: <4A88E3E4.40506@jp.fujitsu.com> Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/mcheck/mce.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index a0c2910d96a..01213048f62 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -1226,8 +1226,13 @@ static void mce_init(void) } /* Add per CPU specific workarounds here */ -static void mce_cpu_quirks(struct cpuinfo_x86 *c) +static int mce_cpu_quirks(struct cpuinfo_x86 *c) { + if (c->x86_vendor == X86_VENDOR_UNKNOWN) { + pr_info("MCE: unknown CPU type - not enabling MCE support.\n"); + return -EOPNOTSUPP; + } + /* This should be disabled by the BIOS, but isn't always */ if (c->x86_vendor == X86_VENDOR_AMD) { if (c->x86 == 15 && banks > 4) { @@ -1274,14 +1279,19 @@ static void mce_cpu_quirks(struct cpuinfo_x86 *c) monarch_timeout < 0) monarch_timeout = USEC_PER_SEC; - /* There are also broken BIOSes on some Pentium M systems. */ - if (c->x86 == 6 && c->x86_model == 13 && mce_bootlog < 0) + /* + * There are also broken BIOSes on some Pentium M and + * earlier systems: + */ + if (c->x86 == 6 && c->x86_model <= 13 && mce_bootlog < 0) mce_bootlog = 0; } if (monarch_timeout < 0) monarch_timeout = 0; if (mce_bootlog != 0) mce_panic_timeout = 30; + + return 0; } static void __cpuinit mce_ancient_init(struct cpuinfo_x86 *c) @@ -1342,11 +1352,10 @@ void __cpuinit mcheck_init(struct cpuinfo_x86 *c) if (!mce_available(c)) return; - if (mce_cap_init() < 0) { + if (mce_cap_init() < 0 || mce_cpu_quirks(c) < 0) { mce_disabled = 1; return; } - mce_cpu_quirks(c); machine_check_vector = do_machine_check; -- cgit v1.2.3-70-g09d2 From 87c62a66edd645a9b1ff1f9b00ab20c5a93d8845 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Tue, 14 Jul 2009 22:37:09 +0900 Subject: MIPS: Fix HPAGE_SIZE redefinition This patch fixes warnings like this: CC fs/proc/meminfo.o In file included from /work/linux/include/linux/mmzone.h:20, from /work/linux/include/linux/gfp.h:4, from /work/linux/include/linux/mm.h:8, from /work/linux/fs/proc/meminfo.c:5: /work/linux/arch/mips/include/asm/page.h:36:1: warning: "HPAGE_SIZE" redefined In file included from /work/linux/fs/proc/meminfo.c:2: /work/linux/include/linux/hugetlb.h:107:1: warning: this is the location of the previous definition Signed-off-by: Atsushi Nemoto Acked-by: David Daney Signed-off-by: Ralf Baechle --- arch/mips/include/asm/page.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch') diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index 96a14a426a7..4320239cf4e 100644 --- a/arch/mips/include/asm/page.h +++ b/arch/mips/include/asm/page.h @@ -32,10 +32,12 @@ #define PAGE_SIZE (1UL << PAGE_SHIFT) #define PAGE_MASK (~((1 << PAGE_SHIFT) - 1)) +#ifdef CONFIG_HUGETLB_PAGE #define HPAGE_SHIFT (PAGE_SHIFT + PAGE_SHIFT - 3) #define HPAGE_SIZE ((1UL) << HPAGE_SHIFT) #define HPAGE_MASK (~(HPAGE_SIZE - 1)) #define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) +#endif /* CONFIG_HUGETLB_PAGE */ #ifndef __ASSEMBLY__ -- cgit v1.2.3-70-g09d2 From 1adcaafe7414c5731f758b158aa0525057225deb Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Mon, 17 Aug 2009 13:23:50 -0700 Subject: x86, pat: Allow ISA memory range uncacheable mapping requests Max Vozeler reported: > Bug 13877 - bogl-term broken with CONFIG_X86_PAT=y, works with =n > > strace of bogl-term: > 814 mmap2(NULL, 65536, PROT_READ|PROT_WRITE, MAP_SHARED, 4, 0) > = -1 EAGAIN (Resource temporarily unavailable) > 814 write(2, "bogl: mmaping /dev/fb0: Resource temporarily unavailable\n", > 57) = 57 PAT code maps the ISA memory range as WB in the PAT attribute, so that fixed range MTRR registers define the actual memory type (UC/WC/WT etc). But the upper level is_new_memtype_allowed() API checks are failing, as the request here is for UC and the return tracked type is WB (Tracked type is WB as MTRR type for this legacy range potentially will be different for each 4k page). Fix is_new_memtype_allowed() by always succeeding the ISA address range checks, as the null PAT (WB) and def MTRR fixed range register settings satisfy the memory type needs of the applications that map the ISA address range. Reported-and-Tested-by: Max Vozeler Signed-off-by: Suresh Siddha Signed-off-by: Venkatesh Pallipadi Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/pgtable.h | 12 ++++++++++-- arch/x86/mm/pat.c | 3 ++- 2 files changed, 12 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 3cc06e3fceb..16748077559 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -2,6 +2,7 @@ #define _ASM_X86_PGTABLE_H #include +#include #include @@ -269,9 +270,16 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot) #define canon_pgprot(p) __pgprot(massage_pgprot(p)) -static inline int is_new_memtype_allowed(unsigned long flags, - unsigned long new_flags) +static inline int is_new_memtype_allowed(u64 paddr, unsigned long size, + unsigned long flags, + unsigned long new_flags) { + /* + * PAT type is always WB for ISA. So no need to check. + */ + if (is_ISA_range(paddr, paddr + size - 1)) + return 1; + /* * Certain new memtypes are not allowed with certain * requested memtype: diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index e6718bb2806..352aa9e927e 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -623,7 +623,8 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot, return ret; if (flags != want_flags) { - if (strict_prot || !is_new_memtype_allowed(want_flags, flags)) { + if (strict_prot || + !is_new_memtype_allowed(paddr, size, want_flags, flags)) { free_memtype(paddr, paddr + size); printk(KERN_ERR "%s:%d map pfn expected mapping type %s" " for %Lx-%Lx, got %s\n", -- cgit v1.2.3-70-g09d2 From 6b99ecec25c8fd501e74306f5d23dd0365065e2a Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 6 Aug 2009 23:00:38 +0200 Subject: microblaze: use the generic ack_bad_irq implementation Signed-off-by: Christoph Hellwig Signed-off-by: Michal Simek --- arch/microblaze/include/asm/hardirq.h | 2 -- arch/microblaze/kernel/irq.c | 9 --------- 2 files changed, 11 deletions(-) (limited to 'arch') diff --git a/arch/microblaze/include/asm/hardirq.h b/arch/microblaze/include/asm/hardirq.h index 41e1e1aa36a..cd1ac9aad56 100644 --- a/arch/microblaze/include/asm/hardirq.h +++ b/arch/microblaze/include/asm/hardirq.h @@ -12,8 +12,6 @@ /* should be defined in each interrupt controller driver */ extern unsigned int get_irq(struct pt_regs *regs); -#define ack_bad_irq ack_bad_irq -void ack_bad_irq(unsigned int irq); #include #endif /* _ASM_MICROBLAZE_HARDIRQ_H */ diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c index f688ee93e3b..7d5ddd62d4d 100644 --- a/arch/microblaze/kernel/irq.c +++ b/arch/microblaze/kernel/irq.c @@ -30,15 +30,6 @@ unsigned int irq_of_parse_and_map(struct device_node *dev, int index) } EXPORT_SYMBOL_GPL(irq_of_parse_and_map); -/* - * 'what should we do if we get a hw irq event on an illegal vector'. - * each architecture has to answer this themselves. - */ -void ack_bad_irq(unsigned int irq) -{ - printk(KERN_WARNING "unexpected IRQ trap at vector %02x\n", irq); -} - static u32 concurrent_irq; void do_IRQ(struct pt_regs *regs) -- cgit v1.2.3-70-g09d2 From 892ee92b81b6e7fa5f6147c96e11c6c1b9802fc6 Mon Sep 17 00:00:00 2001 From: John Williams Date: Wed, 29 Jul 2009 22:08:40 +1000 Subject: microblaze: Sane handling of missing timer/intc in device tree This code path doesn't test any returned pointers for NULL, leading to a bad kernel page fault if there's no timer/intc found. Slightly better is to BUG(), but even better still would be a printk beforehand. Signed-off-by: John Williams Signed-off-by: Michal Simek --- arch/microblaze/kernel/intc.c | 2 ++ arch/microblaze/kernel/timer.c | 2 ++ 2 files changed, 4 insertions(+) (limited to 'arch') diff --git a/arch/microblaze/kernel/intc.c b/arch/microblaze/kernel/intc.c index b15605299a5..6eea6f92b84 100644 --- a/arch/microblaze/kernel/intc.c +++ b/arch/microblaze/kernel/intc.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include @@ -130,6 +131,7 @@ void __init init_IRQ(void) if (intc) break; } + BUG_ON(!intc); intc_baseaddr = *(int *) of_get_property(intc, "reg", NULL); intc_baseaddr = (unsigned long) ioremap(intc_baseaddr, PAGE_SIZE); diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c index bdfa2f9f0c8..5499deae7fa 100644 --- a/arch/microblaze/kernel/timer.c +++ b/arch/microblaze/kernel/timer.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -234,6 +235,7 @@ void __init time_init(void) if (timer) break; } + BUG_ON(!timer); timer_baseaddr = *(int *) of_get_property(timer, "reg", NULL); timer_baseaddr = (unsigned long) ioremap(timer_baseaddr, PAGE_SIZE); -- cgit v1.2.3-70-g09d2 From 2856ed35ead295a7cc8788d9ba860e746dfc92bb Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Thu, 6 Aug 2009 16:00:52 +0200 Subject: microblaze: Enable ppoll syscall Signed-off-by: Michal Simek --- arch/microblaze/kernel/syscall_table.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S index 216db817beb..457216097df 100644 --- a/arch/microblaze/kernel/syscall_table.S +++ b/arch/microblaze/kernel/syscall_table.S @@ -313,7 +313,7 @@ ENTRY(sys_call_table) .long sys_fchmodat .long sys_faccessat .long sys_ni_syscall /* pselect6 */ - .long sys_ni_syscall /* sys_ppoll */ + .long sys_ppoll .long sys_unshare /* 310 */ .long sys_set_robust_list .long sys_get_robust_list -- cgit v1.2.3-70-g09d2 From 8f37b6c9852ff79cc8472c44ea6f6485dfd58bd2 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Tue, 11 Aug 2009 12:36:12 +0200 Subject: microblaze: Use klimit instead of _end for memory init For noMMU system when you use larger rootfs image there is problem with using _end label because we increase klimit but in memory initialization we use still _end which is wrong. Larger mtd rootfs was rewritten by init_bootmem_node. MMU kernel use static initialization where klimit is setup to _end. There is no any other hanling with klimit. Signed-off-by: Michal Simek --- arch/microblaze/mm/init.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index 8d92c4efe9a..f207f1a94db 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -130,13 +130,13 @@ void __init setup_memory(void) * (in case the address isn't page-aligned). */ #ifndef CONFIG_MMU - map_size = init_bootmem_node(NODE_DATA(0), PFN_UP(TOPHYS((u32)_end)), + map_size = init_bootmem_node(NODE_DATA(0), PFN_UP(TOPHYS((u32)klimit)), min_low_pfn, max_low_pfn); #else map_size = init_bootmem_node(&contig_page_data, - PFN_UP(TOPHYS((u32)_end)), min_low_pfn, max_low_pfn); + PFN_UP(TOPHYS((u32)klimit)), min_low_pfn, max_low_pfn); #endif - lmb_reserve(PFN_UP(TOPHYS((u32)_end)) << PAGE_SHIFT, map_size); + lmb_reserve(PFN_UP(TOPHYS((u32)klimit)) << PAGE_SHIFT, map_size); /* free bootmem is whole main memory */ free_bootmem(memory_start, memory_size); -- cgit v1.2.3-70-g09d2 From 1fef7891755d99039592aa8d1ed02e981f38de15 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Tue, 18 Aug 2009 11:05:11 +0200 Subject: microblaze: Update Microblaze defconfigs Signed-off-by: Michal Simek --- arch/microblaze/configs/mmu_defconfig | 70 +++++++++++++------------ arch/microblaze/configs/nommu_defconfig | 91 ++++++++++++++++++++------------- 2 files changed, 91 insertions(+), 70 deletions(-) (limited to 'arch') diff --git a/arch/microblaze/configs/mmu_defconfig b/arch/microblaze/configs/mmu_defconfig index bd0b85ec38f..09c32962b66 100644 --- a/arch/microblaze/configs/mmu_defconfig +++ b/arch/microblaze/configs/mmu_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc6 -# Fri May 22 10:02:33 2009 +# Linux kernel version: 2.6.31-rc6 +# Tue Aug 18 11:00:02 2009 # CONFIG_MICROBLAZE=y # CONFIG_SWAP is not set @@ -18,7 +18,11 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y CONFIG_GENERIC_GPIO=y +CONFIG_GENERIC_CSUM=y +# CONFIG_PCI is not set +CONFIG_NO_DMA=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -59,8 +63,8 @@ CONFIG_INITRAMFS_ROOT_GID=0 CONFIG_RD_GZIP=y # CONFIG_RD_BZIP2 is not set # CONFIG_RD_LZMA is not set -CONFIG_INITRAMFS_COMPRESSION_NONE=y -# CONFIG_INITRAMFS_COMPRESSION_GZIP is not set +# CONFIG_INITRAMFS_COMPRESSION_NONE is not set +CONFIG_INITRAMFS_COMPRESSION_GZIP=y # CONFIG_INITRAMFS_COMPRESSION_BZIP2 is not set # CONFIG_INITRAMFS_COMPRESSION_LZMA is not set # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set @@ -71,7 +75,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_EXTRA_PASS=y -# CONFIG_STRIP_ASM_SYMS is not set # CONFIG_HOTPLUG is not set CONFIG_PRINTK=y CONFIG_BUG=y @@ -84,13 +87,22 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y # CONFIG_SHMEM is not set CONFIG_AIO=y + +# +# Performance Counters +# CONFIG_VM_EVENT_COUNTERS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set # CONFIG_SLOB is not set # CONFIG_PROFILING is not set # CONFIG_MARKERS is not set + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -102,7 +114,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -194,9 +206,9 @@ CONFIG_SPLIT_PTLOCK_CPUS=4 # CONFIG_PHYS_ADDR_T_64BIT is not set CONFIG_ZONE_DMA_FLAG=0 CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 # # Exectuable file formats @@ -262,6 +274,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -325,7 +338,6 @@ CONFIG_MISC_DEVICES=y # CONFIG_ATA is not set # CONFIG_MD is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -344,7 +356,7 @@ CONFIG_NET_ETHERNET=y # CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set -# CONFIG_B44 is not set +# CONFIG_KS8842 is not set CONFIG_NETDEV_1000=y CONFIG_NETDEV_10000=y @@ -410,6 +422,11 @@ CONFIG_LEGACY_PTY_COUNT=256 # CONFIG_TCG_TPM is not set # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -418,12 +435,6 @@ CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_THERMAL is not set # CONFIG_THERMAL_HWMON is not set # CONFIG_WATCHDOG is not set -CONFIG_SSB_POSSIBLE=y - -# -# Sonics Silicon Backplane -# -# CONFIG_SSB is not set # # Multifunction device drivers @@ -433,22 +444,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -469,9 +465,12 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_NEW_LEDS is not set # CONFIG_ACCESSIBILITY is not set # CONFIG_RTC_CLASS is not set -# CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -485,12 +484,15 @@ CONFIG_EXT2_FS=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y # CONFIG_DNOTIFY is not set # CONFIG_INOTIFY is not set +CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set @@ -678,6 +680,7 @@ CONFIG_DEBUG_INFO=y # CONFIG_SYSCTL_SYSCALL_CHECK is not set # CONFIG_PAGE_POISONING is not set # CONFIG_SAMPLES is not set +# CONFIG_KMEMCHECK is not set CONFIG_EARLY_PRINTK=y CONFIG_HEART_BEAT=y CONFIG_DEBUG_BOOTMEM=y @@ -793,6 +796,5 @@ CONFIG_ZLIB_INFLATE=y CONFIG_DECOMPRESS_GZIP=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y -CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y diff --git a/arch/microblaze/configs/nommu_defconfig b/arch/microblaze/configs/nommu_defconfig index 4ef6af0a8f3..8b638615a97 100644 --- a/arch/microblaze/configs/nommu_defconfig +++ b/arch/microblaze/configs/nommu_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc5 -# Mon May 11 09:01:02 2009 +# Linux kernel version: 2.6.31-rc6 +# Tue Aug 18 10:35:30 2009 # CONFIG_MICROBLAZE=y # CONFIG_SWAP is not set @@ -17,9 +17,12 @@ CONFIG_GENERIC_TIME=y # CONFIG_GENERIC_TIME_VSYSCALL is not set CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y +CONFIG_GENERIC_GPIO=y +CONFIG_GENERIC_CSUM=y # CONFIG_PCI is not set -# CONFIG_NO_DMA is not set +CONFIG_NO_DMA=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -64,7 +67,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_EXTRA_PASS=y -# CONFIG_STRIP_ASM_SYMS is not set # CONFIG_HOTPLUG is not set CONFIG_PRINTK=y CONFIG_BUG=y @@ -76,13 +78,23 @@ CONFIG_SIGNALFD=y CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_AIO=y + +# +# Performance Counters +# CONFIG_VM_EVENT_COUNTERS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set # CONFIG_SLOB is not set # CONFIG_PROFILING is not set # CONFIG_MARKERS is not set + +# +# GCOV-based kernel profiling +# +# CONFIG_GCOV_KERNEL is not set # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -95,7 +107,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -156,8 +168,16 @@ CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="console=ttyUL0,115200" # CONFIG_CMDLINE_FORCE is not set CONFIG_OF=y -CONFIG_OF_DEVICE=y CONFIG_PROC_DEVICETREE=y + +# +# Advanced setup +# + +# +# Default settings for advanced configuration options are used +# +CONFIG_KERNEL_START=0x90000000 CONFIG_SELECT_MEMORY_MODEL=y CONFIG_FLATMEM_MANUAL=y # CONFIG_DISCONTIGMEM_MANUAL is not set @@ -169,7 +189,7 @@ CONFIG_SPLIT_PTLOCK_CPUS=4 # CONFIG_PHYS_ADDR_T_64BIT is not set CONFIG_ZONE_DMA_FLAG=0 CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_NOMMU_INITIAL_TRIM_EXCESS=1 # @@ -237,6 +257,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -254,7 +275,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -353,6 +378,7 @@ CONFIG_MTD_UCLINUX=y # UBI - Unsorted block images # # CONFIG_MTD_UBI is not set +CONFIG_OF_DEVICE=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_COW_COMMON is not set @@ -364,6 +390,7 @@ CONFIG_BLK_DEV_RAM_SIZE=4096 # CONFIG_BLK_DEV_XIP is not set # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set +# CONFIG_XILINX_SYSACE is not set CONFIG_MISC_DEVICES=y # CONFIG_ENCLOSURE_SERVICES is not set # CONFIG_C2PORT is not set @@ -383,7 +410,6 @@ CONFIG_MISC_DEVICES=y # CONFIG_ATA is not set # CONFIG_MD is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -402,7 +428,7 @@ CONFIG_NET_ETHERNET=y # CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set -# CONFIG_B44 is not set +# CONFIG_KS8842 is not set CONFIG_NETDEV_1000=y CONFIG_NETDEV_10000=y @@ -463,23 +489,25 @@ CONFIG_HW_RANDOM=y # CONFIG_HW_RANDOM_TIMERIOMEM is not set # CONFIG_RTC is not set # CONFIG_GEN_RTC is not set +# CONFIG_XILINX_HWICAP is not set # CONFIG_R3964 is not set # CONFIG_RAW_DRIVER is not set # CONFIG_TCG_TPM is not set # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set +CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y +# CONFIG_GPIOLIB is not set # CONFIG_W1 is not set # CONFIG_POWER_SUPPLY is not set # CONFIG_HWMON is not set # CONFIG_THERMAL is not set # CONFIG_THERMAL_HWMON is not set # CONFIG_WATCHDOG is not set -CONFIG_SSB_POSSIBLE=y - -# -# Sonics Silicon Backplane -# -# CONFIG_SSB is not set # # Multifunction device drivers @@ -489,22 +517,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -520,9 +533,10 @@ CONFIG_VIDEO_OUTPUT_CONTROL=y # CONFIG_DISPLAY_SUPPORT is not set # CONFIG_SOUND is not set CONFIG_USB_SUPPORT=y -# CONFIG_USB_ARCH_HAS_HCD is not set +CONFIG_USB_ARCH_HAS_HCD=y # CONFIG_USB_ARCH_HAS_OHCI is not set # CONFIG_USB_ARCH_HAS_EHCI is not set +# CONFIG_USB is not set # CONFIG_USB_OTG_WHITELIST is not set # CONFIG_USB_OTG_BLACKLIST_HUB is not set @@ -543,9 +557,12 @@ CONFIG_USB_SUPPORT=y # CONFIG_NEW_LEDS is not set # CONFIG_ACCESSIBILITY is not set # CONFIG_RTC_CLASS is not set -# CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -558,12 +575,15 @@ CONFIG_EXT2_FS=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y # CONFIG_DNOTIFY is not set # CONFIG_INOTIFY is not set +CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set @@ -813,6 +833,5 @@ CONFIG_GENERIC_FIND_LAST_BIT=y CONFIG_ZLIB_INFLATE=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y -CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y -- cgit v1.2.3-70-g09d2 From 78b89ecd731798f2fec8cc26ca90739253cec33c Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 18 Aug 2009 16:41:33 +0100 Subject: i386: Fix section mismatches for init code with !HOTPLUG_CPU Commit 0e83815be719d3391bf5ea24b7fe696c07dbd417 changed the section the initial_code variable gets allocated in, in an attempt to address a section conflict warning. This, however created a new section conflict when building without HOTPLUG_CPU. The apparently only (reasonable) way to address this is to always use __REFDATA. Once at it, also fix a second section mismatch when not using HOTPLUG_CPU. Signed-off-by: Jan Beulich Cc: Robert Richter LKML-Reference: <4A8AE7CD020000780001054B@vpn.id2.novell.com> Signed-off-by: Ingo Molnar --- arch/x86/kernel/head_32.S | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) (limited to 'arch') diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S index 0d98a01cbdb..cc827ac9e8d 100644 --- a/arch/x86/kernel/head_32.S +++ b/arch/x86/kernel/head_32.S @@ -261,9 +261,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20); * which will be freed later */ -#ifndef CONFIG_HOTPLUG_CPU -.section .init.text,"ax",@progbits -#endif +__CPUINIT #ifdef CONFIG_SMP ENTRY(startup_32_smp) @@ -602,11 +600,7 @@ ignore_int: #endif iret -#ifndef CONFIG_HOTPLUG_CPU - __CPUINITDATA -#else __REFDATA -#endif .align 4 ENTRY(initial_code) .long i386_start_kernel -- cgit v1.2.3-70-g09d2 From e2c6cbd9ace61039d3de39e717195e38f1492aee Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Tue, 18 Aug 2009 20:16:55 -0700 Subject: sparc: sys32.S incorrect compat-layer splice() system call I think arch/sparc/kernel/sys32.S has an incorrect splice definition: SIGN2(sys32_splice, sys_splice, %o0, %o1) The splice() prototype looks like : long splice(int fd_in, loff_t *off_in, int fd_out, loff_t *off_out, size_t len, unsigned int flags); So I think we should have : SIGN2(sys32_splice, sys_splice, %o0, %o2) Signed-off-by: Mathieu Desnoyers Signed-off-by: David S. Miller --- arch/sparc/kernel/sys32.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S index 577f8fab8b6..aed94869ad6 100644 --- a/arch/sparc/kernel/sys32.S +++ b/arch/sparc/kernel/sys32.S @@ -134,7 +134,7 @@ SIGN1(sys32_getpeername, sys_getpeername, %o0) SIGN1(sys32_getsockname, sys_getsockname, %o0) SIGN2(sys32_ioprio_get, sys_ioprio_get, %o0, %o1) SIGN3(sys32_ioprio_set, sys_ioprio_set, %o0, %o1, %o2) -SIGN2(sys32_splice, sys_splice, %o0, %o1) +SIGN2(sys32_splice, sys_splice, %o0, %o2) SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) SIGN2(sys32_tee, sys_tee, %o0, %o1) SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) -- cgit v1.2.3-70-g09d2 From a9919646d12a13bea7eb74b996686f900dffb120 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 18 Aug 2009 23:44:08 -0700 Subject: sparc32: Kill trap table freeing code. Normally, srmmu uses different trap table register values to allow determination of the cpu we're on. All of the trap tables have identical content, they just sit at different offsets from the first trap table, and the offset shifted down and masked out determines the cpu we are on. The code tries to free them up when they aren't actually used (don't have all 4 cpus, we're on sun4d, etc.) but that causes problems. For one thing it triggers false positives in the DMA debugging code. And fixing that up while preserving this relative offset thing isn't trivial. So just kill the freeing code, it costs us at most 3 pages, big deal... Signed-off-by: David S. Miller --- arch/sparc/kernel/sun4d_smp.c | 22 ---------------------- arch/sparc/kernel/sun4m_smp.c | 26 -------------------------- 2 files changed, 48 deletions(-) (limited to 'arch') diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c index 54fb02468f0..68791cad7b7 100644 --- a/arch/sparc/kernel/sun4d_smp.c +++ b/arch/sparc/kernel/sun4d_smp.c @@ -162,9 +162,6 @@ extern void cpu_panic(void); */ extern struct linux_prom_registers smp_penguin_ctable; -extern unsigned long trapbase_cpu1[]; -extern unsigned long trapbase_cpu2[]; -extern unsigned long trapbase_cpu3[]; void __init smp4d_boot_cpus(void) { @@ -235,25 +232,6 @@ void __init smp4d_smp_done(void) *prev = first; local_flush_cache_all(); - /* Free unneeded trap tables */ - ClearPageReserved(virt_to_page(trapbase_cpu1)); - init_page_count(virt_to_page(trapbase_cpu1)); - free_page((unsigned long)trapbase_cpu1); - totalram_pages++; - num_physpages++; - - ClearPageReserved(virt_to_page(trapbase_cpu2)); - init_page_count(virt_to_page(trapbase_cpu2)); - free_page((unsigned long)trapbase_cpu2); - totalram_pages++; - num_physpages++; - - ClearPageReserved(virt_to_page(trapbase_cpu3)); - init_page_count(virt_to_page(trapbase_cpu3)); - free_page((unsigned long)trapbase_cpu3); - totalram_pages++; - num_physpages++; - /* Ok, they are spinning and ready to go. */ smp_processors_ready = 1; sun4d_distribute_irqs(); diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c index 960b113d000..762d6eedd94 100644 --- a/arch/sparc/kernel/sun4m_smp.c +++ b/arch/sparc/kernel/sun4m_smp.c @@ -121,9 +121,6 @@ void __cpuinit smp4m_callin(void) */ extern struct linux_prom_registers smp_penguin_ctable; -extern unsigned long trapbase_cpu1[]; -extern unsigned long trapbase_cpu2[]; -extern unsigned long trapbase_cpu3[]; void __init smp4m_boot_cpus(void) { @@ -193,29 +190,6 @@ void __init smp4m_smp_done(void) *prev = first; local_flush_cache_all(); - /* Free unneeded trap tables */ - if (!cpu_isset(1, cpu_present_map)) { - ClearPageReserved(virt_to_page(trapbase_cpu1)); - init_page_count(virt_to_page(trapbase_cpu1)); - free_page((unsigned long)trapbase_cpu1); - totalram_pages++; - num_physpages++; - } - if (!cpu_isset(2, cpu_present_map)) { - ClearPageReserved(virt_to_page(trapbase_cpu2)); - init_page_count(virt_to_page(trapbase_cpu2)); - free_page((unsigned long)trapbase_cpu2); - totalram_pages++; - num_physpages++; - } - if (!cpu_isset(3, cpu_present_map)) { - ClearPageReserved(virt_to_page(trapbase_cpu3)); - init_page_count(virt_to_page(trapbase_cpu3)); - free_page((unsigned long)trapbase_cpu3); - totalram_pages++; - num_physpages++; - } - /* Ok, they are spinning and ready to go. */ } -- cgit v1.2.3-70-g09d2 From 2193aa276e2579d9c781c5269521d43f47da9959 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 18 Aug 2009 23:46:12 -0700 Subject: sparc32: Update defconfig. Signed-off-by: David S. Miller --- arch/sparc/configs/sparc32_defconfig | 74 +++++++++++++++++++++--------------- 1 file changed, 44 insertions(+), 30 deletions(-) (limited to 'arch') diff --git a/arch/sparc/configs/sparc32_defconfig b/arch/sparc/configs/sparc32_defconfig index 8bcd27af724..a0f62a808ed 100644 --- a/arch/sparc/configs/sparc32_defconfig +++ b/arch/sparc/configs/sparc32_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc2 -# Fri Apr 17 04:04:46 2009 +# Linux kernel version: 2.6.31-rc1 +# Tue Aug 18 23:45:52 2009 # # CONFIG_64BIT is not set CONFIG_SPARC=y @@ -17,6 +17,7 @@ CONFIG_GENERIC_ISA_DMA=y CONFIG_ARCH_NO_VIRT_TO_BUS=y CONFIG_OF=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -74,7 +75,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -87,8 +87,13 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y + +# +# Performance Counters +# CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -97,6 +102,10 @@ CONFIG_SLAB=y # CONFIG_MARKERS is not set CONFIG_HAVE_OPROFILE=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -109,7 +118,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -154,9 +163,9 @@ CONFIG_SPLIT_PTLOCK_CPUS=4 # CONFIG_PHYS_ADDR_T_64BIT is not set CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_SUN_PM=y # CONFIG_SPARC_LED is not set CONFIG_SERIAL_CONSOLE=y @@ -264,6 +273,7 @@ CONFIG_IPV6_TUNNEL=m # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -281,7 +291,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -335,6 +349,7 @@ CONFIG_MISC_DEVICES=y # EEPROM support # # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -358,10 +373,6 @@ CONFIG_BLK_DEV_SR=m # CONFIG_BLK_DEV_SR_VENDOR is not set CONFIG_CHR_DEV_SG=m # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -379,6 +390,7 @@ CONFIG_SCSI_SPI_ATTRS=y CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -387,6 +399,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_ARCMSR is not set # CONFIG_MEGARAID_NEWGEN is not set # CONFIG_MEGARAID_LEGACY is not set @@ -401,7 +414,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_QLOGIC_1280 is not set @@ -426,13 +438,16 @@ CONFIG_SCSI_SUNESP=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y CONFIG_DUMMY=m # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -463,6 +478,7 @@ CONFIG_SUNQE=m # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -482,6 +498,7 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -629,6 +646,11 @@ CONFIG_HW_RANDOM=m CONFIG_DEVPORT=y # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -668,22 +690,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -776,6 +783,10 @@ CONFIG_RTC_DRV_M48T59=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -799,10 +810,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -985,6 +998,7 @@ CONFIG_KGDB=y CONFIG_KGDB_SERIAL_CONSOLE=y CONFIG_KGDB_TESTS=y # CONFIG_KGDB_TESTS_ON_BOOT is not set +# CONFIG_KMEMCHECK is not set # CONFIG_DEBUG_STACK_USAGE is not set # CONFIG_STACK_DEBUG is not set -- cgit v1.2.3-70-g09d2 From 1ca3976d8ca8b0b44145994b1433f759a642615b Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 18 Aug 2009 23:56:21 -0700 Subject: sparc64: Update defconfig. Signed-off-by: David S. Miller --- arch/sparc/configs/sparc64_defconfig | 59 +++++++++++++++++++++--------------- 1 file changed, 34 insertions(+), 25 deletions(-) (limited to 'arch') diff --git a/arch/sparc/configs/sparc64_defconfig b/arch/sparc/configs/sparc64_defconfig index 0123a4c596c..fdddf7a6f72 100644 --- a/arch/sparc/configs/sparc64_defconfig +++ b/arch/sparc/configs/sparc64_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30 -# Tue Jun 16 04:59:36 2009 +# Linux kernel version: 2.6.31-rc1 +# Tue Aug 18 23:56:02 2009 # CONFIG_64BIT=y CONFIG_SPARC=y @@ -26,6 +26,7 @@ CONFIG_ARCH_NO_VIRT_TO_BUS=y CONFIG_OF=y CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -119,6 +120,11 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_USE_GENERIC_SMP_HELPERS=y + +# +# GCOV-based kernel profiling +# +# CONFIG_GCOV_KERNEL is not set # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -204,7 +210,6 @@ CONFIG_MIGRATION=y CONFIG_PHYS_ADDR_T_64BIT=y CONFIG_ZONE_DMA_FLAG=0 CONFIG_NR_QUICK=1 -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y CONFIG_DEFAULT_MMAP_MIN_ADDR=8192 @@ -410,6 +415,7 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set # CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y @@ -562,6 +568,7 @@ CONFIG_BLK_DEV_DM=m CONFIG_DM_CRYPT=m CONFIG_DM_SNAPSHOT=m CONFIG_DM_MIRROR=m +# CONFIG_DM_LOG_USERSPACE is not set CONFIG_DM_ZERO=m # CONFIG_DM_MULTIPATH is not set # CONFIG_DM_DELAY is not set @@ -573,7 +580,11 @@ CONFIG_DM_ZERO=m # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set @@ -667,6 +678,7 @@ CONFIG_E1000E=m # CONFIG_VIA_VELOCITY is not set CONFIG_TIGON3=m CONFIG_BNX2=m +# CONFIG_CNIC is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -773,6 +785,7 @@ CONFIG_MOUSE_SERIAL=y # CONFIG_MOUSE_APPLETOUCH is not set # CONFIG_MOUSE_BCM5974 is not set # CONFIG_MOUSE_VSXXXAA is not set +# CONFIG_MOUSE_SYNAPTICS_I2C is not set # CONFIG_INPUT_JOYSTICK is not set # CONFIG_INPUT_TABLET is not set # CONFIG_INPUT_TOUCHSCREEN is not set @@ -870,6 +883,7 @@ CONFIG_I2C_ALGOBIT=y # # I2C system bus drivers (mostly embedded / system-on-chip) # +# CONFIG_I2C_DESIGNWARE is not set # CONFIG_I2C_OCORES is not set # CONFIG_I2C_SIMTEC is not set @@ -898,13 +912,17 @@ CONFIG_I2C_ALGOBIT=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -959,6 +977,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -994,23 +1013,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1284,7 +1289,6 @@ CONFIG_USB=y # # Miscellaneous USB options # -CONFIG_USB_DEVICEFS=y # CONFIG_USB_DEVICE_CLASS is not set # CONFIG_USB_DYNAMIC_MINORS is not set # CONFIG_USB_OTG is not set @@ -1296,6 +1300,7 @@ CONFIG_USB_DEVICEFS=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=m # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1374,7 +1379,6 @@ CONFIG_USB_STORAGE=m # CONFIG_USB_LD is not set # CONFIG_USB_TRANCEVIBRATOR is not set # CONFIG_USB_IOWARRIOR is not set -# CONFIG_USB_TEST is not set # CONFIG_USB_ISIGHTFW is not set # CONFIG_USB_VST is not set # CONFIG_USB_GADGET is not set @@ -1420,6 +1424,7 @@ CONFIG_RTC_INTF_DEV=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1448,6 +1453,10 @@ CONFIG_RTC_DRV_STARFIRE=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1480,11 +1489,11 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y @@ -1560,7 +1569,7 @@ CONFIG_NETWORK_FILESYSTEMS=y # CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y CONFIG_SUN_PARTITION=y -CONFIG_NLS=m +CONFIG_NLS=y CONFIG_NLS_DEFAULT="iso8859-1" # CONFIG_NLS_CODEPAGE_437 is not set # CONFIG_NLS_CODEPAGE_737 is not set -- cgit v1.2.3-70-g09d2 From f833bab87fca5c3ce13778421b1365845843b976 Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Mon, 17 Aug 2009 14:34:59 -0700 Subject: clockevent: Prevent dead lock on clockevents_lock Currently clockevents_notify() is called with interrupts enabled at some places and interrupts disabled at some other places. This results in a deadlock in this scenario. cpu A holds clockevents_lock in clockevents_notify() with irqs enabled cpu B waits for clockevents_lock in clockevents_notify() with irqs disabled cpu C doing set_mtrr() which will try to rendezvous of all the cpus. This will result in C and A come to the rendezvous point and waiting for B. B is stuck forever waiting for the spinlock and thus not reaching the rendezvous point. Fix the clockevents code so that clockevents_lock is taken with interrupts disabled and thus avoid the above deadlock. Also call lapic_timer_propagate_broadcast() on the destination cpu so that we avoid calling smp_call_function() in the clockevents notifier chain. This issue left us wondering if we need to change the MTRR rendezvous logic to use stop machine logic (instead of smp_call_function) or add a check in spinlock debug code to see if there are other spinlocks which gets taken under both interrupts enabled/disabled conditions. Signed-off-by: Suresh Siddha Signed-off-by: Venkatesh Pallipadi Cc: "Pallipadi Venkatesh" Cc: "Brown Len" LKML-Reference: <1250544899.2709.210.camel@sbs-t61.sc.intel.com> Signed-off-by: Thomas Gleixner --- arch/x86/kernel/process.c | 6 +----- drivers/acpi/processor_idle.c | 6 ++++-- kernel/time/clockevents.c | 16 ++++++++++------ kernel/time/tick-broadcast.c | 7 +++---- 4 files changed, 18 insertions(+), 17 deletions(-) (limited to 'arch') diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 994dd6a4a2a..071166a4ba8 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -519,16 +519,12 @@ static void c1e_idle(void) if (!cpumask_test_cpu(cpu, c1e_mask)) { cpumask_set_cpu(cpu, c1e_mask); /* - * Force broadcast so ACPI can not interfere. Needs - * to run with interrupts enabled as it uses - * smp_function_call. + * Force broadcast so ACPI can not interfere. */ - local_irq_enable(); clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_FORCE, &cpu); printk(KERN_INFO "Switch to broadcast mode on CPU%d\n", cpu); - local_irq_disable(); } clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu); diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 0efa59e7e3a..66393d5c4c7 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -162,8 +162,9 @@ static void lapic_timer_check_state(int state, struct acpi_processor *pr, pr->power.timer_broadcast_on_state = state; } -static void lapic_timer_propagate_broadcast(struct acpi_processor *pr) +static void lapic_timer_propagate_broadcast(void *arg) { + struct acpi_processor *pr = (struct acpi_processor *) arg; unsigned long reason; reason = pr->power.timer_broadcast_on_state < INT_MAX ? @@ -635,7 +636,8 @@ static int acpi_processor_power_verify(struct acpi_processor *pr) working++; } - lapic_timer_propagate_broadcast(pr); + smp_call_function_single(pr->id, lapic_timer_propagate_broadcast, + pr, 1); return (working); } diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c index a6dcd67b041..620b58abdc3 100644 --- a/kernel/time/clockevents.c +++ b/kernel/time/clockevents.c @@ -137,11 +137,12 @@ int clockevents_program_event(struct clock_event_device *dev, ktime_t expires, */ int clockevents_register_notifier(struct notifier_block *nb) { + unsigned long flags; int ret; - spin_lock(&clockevents_lock); + spin_lock_irqsave(&clockevents_lock, flags); ret = raw_notifier_chain_register(&clockevents_chain, nb); - spin_unlock(&clockevents_lock); + spin_unlock_irqrestore(&clockevents_lock, flags); return ret; } @@ -178,16 +179,18 @@ static void clockevents_notify_released(void) */ void clockevents_register_device(struct clock_event_device *dev) { + unsigned long flags; + BUG_ON(dev->mode != CLOCK_EVT_MODE_UNUSED); BUG_ON(!dev->cpumask); - spin_lock(&clockevents_lock); + spin_lock_irqsave(&clockevents_lock, flags); list_add(&dev->list, &clockevent_devices); clockevents_do_notify(CLOCK_EVT_NOTIFY_ADD, dev); clockevents_notify_released(); - spin_unlock(&clockevents_lock); + spin_unlock_irqrestore(&clockevents_lock, flags); } EXPORT_SYMBOL_GPL(clockevents_register_device); @@ -235,8 +238,9 @@ void clockevents_exchange_device(struct clock_event_device *old, void clockevents_notify(unsigned long reason, void *arg) { struct list_head *node, *tmp; + unsigned long flags; - spin_lock(&clockevents_lock); + spin_lock_irqsave(&clockevents_lock, flags); clockevents_do_notify(reason, arg); switch (reason) { @@ -251,7 +255,7 @@ void clockevents_notify(unsigned long reason, void *arg) default: break; } - spin_unlock(&clockevents_lock); + spin_unlock_irqrestore(&clockevents_lock, flags); } EXPORT_SYMBOL_GPL(clockevents_notify); #endif diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index 877dbedc311..c2ec25087a3 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -205,11 +205,11 @@ static void tick_handle_periodic_broadcast(struct clock_event_device *dev) * Powerstate information: The system enters/leaves a state, where * affected devices might stop */ -static void tick_do_broadcast_on_off(void *why) +static void tick_do_broadcast_on_off(unsigned long *reason) { struct clock_event_device *bc, *dev; struct tick_device *td; - unsigned long flags, *reason = why; + unsigned long flags; int cpu, bc_stopped; spin_lock_irqsave(&tick_broadcast_lock, flags); @@ -276,8 +276,7 @@ void tick_broadcast_on_off(unsigned long reason, int *oncpu) printk(KERN_ERR "tick-broadcast: ignoring broadcast for " "offline CPU #%d\n", *oncpu); else - smp_call_function_single(*oncpu, tick_do_broadcast_on_off, - &reason, 1); + tick_do_broadcast_on_off(&reason); } /* -- cgit v1.2.3-70-g09d2 From 5416c2663517ebd0be0664c4d4ce3df0b116c059 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Mon, 17 Aug 2009 12:25:41 -0700 Subject: x86: make sure load_percpu_segment has no stackprotector load_percpu_segment() is used to set up the per-cpu segment registers, which are also used for -fstack-protector. Make sure that the load_percpu_segment() function doesn't have stackprotector enabled. [ Impact: allow percpu setup before calling stack-protected functions ] Signed-off-by: Jeremy Fitzhardinge --- arch/x86/kernel/cpu/Makefile | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch') diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile index 4e242f9a06e..8b5b9b625ed 100644 --- a/arch/x86/kernel/cpu/Makefile +++ b/arch/x86/kernel/cpu/Makefile @@ -7,6 +7,10 @@ ifdef CONFIG_FUNCTION_TRACER CFLAGS_REMOVE_common.o = -pg endif +# Make sure load_percpu_segment has no stackprotector +nostackp := $(call cc-option, -fno-stack-protector) +CFLAGS_common.o := $(nostackp) + obj-y := intel_cacheinfo.o addon_cpuid_features.o obj-y += proc.o capflags.o powerflags.o common.o obj-y += vmware.o hypervisor.o -- cgit v1.2.3-70-g09d2 From ce2eef33d35cd7b932492b5a81fb0febd2b323cd Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Mon, 17 Aug 2009 12:26:53 -0700 Subject: xen: rearrange things to fix stackprotector Make sure the stack-protector segment registers are properly set up before calling any functions which may have stack-protection compiled into them. [ Impact: prevent Xen early-boot crash when stack-protector is enabled ] Signed-off-by: Jeremy Fitzhardinge --- arch/x86/xen/Makefile | 4 ++++ arch/x86/xen/enlighten.c | 22 ++++++++++------------ 2 files changed, 14 insertions(+), 12 deletions(-) (limited to 'arch') diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile index 3b767d03fd6..a5b9288b7da 100644 --- a/arch/x86/xen/Makefile +++ b/arch/x86/xen/Makefile @@ -5,6 +5,10 @@ CFLAGS_REMOVE_time.o = -pg CFLAGS_REMOVE_irq.o = -pg endif +# Make sure early boot has no stackprotector +nostackp := $(call cc-option, -fno-stack-protector) +CFLAGS_enlighten.o := $(nostackp) + obj-y := enlighten.o setup.o multicalls.o mmu.o irq.o \ time.o xen-asm.o xen-asm_$(BITS).o \ grant-table.o suspend.o diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index f09e8c36ee8..edcf72a3c29 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -925,10 +925,6 @@ asmlinkage void __init xen_start_kernel(void) xen_domain_type = XEN_PV_DOMAIN; - BUG_ON(memcmp(xen_start_info->magic, "xen-3", 5) != 0); - - xen_setup_features(); - /* Install Xen paravirt ops */ pv_info = xen_info; pv_init_ops = xen_init_ops; @@ -937,8 +933,15 @@ asmlinkage void __init xen_start_kernel(void) pv_apic_ops = xen_apic_ops; pv_mmu_ops = xen_mmu_ops; - xen_init_irq_ops(); +#ifdef CONFIG_X86_64 + /* + * Setup percpu state. We only need to do this for 64-bit + * because 32-bit already has %fs set properly. + */ + load_percpu_segment(0); +#endif + xen_init_irq_ops(); xen_init_cpuid_mask(); #ifdef CONFIG_X86_LOCAL_APIC @@ -948,6 +951,8 @@ asmlinkage void __init xen_start_kernel(void) set_xen_basic_apic_ops(); #endif + xen_setup_features(); + if (xen_feature(XENFEAT_mmu_pt_update_preserve_ad)) { pv_mmu_ops.ptep_modify_prot_start = xen_ptep_modify_prot_start; pv_mmu_ops.ptep_modify_prot_commit = xen_ptep_modify_prot_commit; @@ -955,13 +960,6 @@ asmlinkage void __init xen_start_kernel(void) machine_ops = xen_machine_ops; -#ifdef CONFIG_X86_64 - /* - * Setup percpu state. We only need to do this for 64-bit - * because 32-bit already has %fs set properly. - */ - load_percpu_segment(0); -#endif /* * The only reliable way to retain the initial address of the * percpu gdt_page is to remember it here, so we can go and -- cgit v1.2.3-70-g09d2 From fc0ce23506d943b9eaa731a051769d0e0605eb03 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Thu, 20 Aug 2009 16:14:15 +0100 Subject: x86: add vmlinux.lds to targets in arch/x86/boot/compressed/Makefile The absence of vmlinux.lds here keeps .vmlinux.lds.cmd from being included, which in turn leads to it and all its dependents always getting rebuilt independent of whether they are already up-to-date. Signed-off-by: Jan Beulich LKML-Reference: <4A8D84670200007800010D31@vpn.id2.novell.com> Signed-off-by: H. Peter Anvin --- arch/x86/boot/compressed/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index e2ff504b4dd..f8ed0658404 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -4,7 +4,7 @@ # create a compressed vmlinux image from the original vmlinux # -targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma head_$(BITS).o misc.o piggy.o +targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma head_$(BITS).o misc.o piggy.o KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 KBUILD_CFLAGS += -fno-strict-aliasing -fPIC -- cgit v1.2.3-70-g09d2 From 83d349f35e1ae72268c5104dbf9ab2ae635425d4 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 21 Aug 2009 09:23:57 -0700 Subject: x86: don't send an IPI to the empty set of CPU's MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The default_send_IPI_mask_logical() function uses the "flat" APIC mode to send an IPI to a set of CPU's at once, but if that set happens to be empty, some older local APIC's will apparently be rather unhappy. So just warn if a caller gives us an empty mask, and ignore it. This fixes a regression in 2.6.30.x, due to commit 4595f9620 ("x86: change flush_tlb_others to take a const struct cpumask"), documented here: http://bugzilla.kernel.org/show_bug.cgi?id=13933 which causes a silent lock-up. It only seems to happen on PPro, P2, P3 and Athlon XP cores. Most developers sadly (or not so sadly, if you're a developer..) have more modern CPU's. Also, on x86-64 we don't use the flat APIC mode, so it would never trigger there even if the APIC didn't like sending an empty IPI mask. Reported-by: Pavel Vilim Reported-and-tested-by: Thomas Björnell Reported-and-tested-by: Martin Rogge Cc: Mike Travis Cc: Ingo Molnar Cc: stable@kernel.org Signed-off-by: Linus Torvalds --- arch/x86/kernel/apic/ipi.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch') diff --git a/arch/x86/kernel/apic/ipi.c b/arch/x86/kernel/apic/ipi.c index dbf5445727a..6ef00ba4c88 100644 --- a/arch/x86/kernel/apic/ipi.c +++ b/arch/x86/kernel/apic/ipi.c @@ -106,6 +106,9 @@ void default_send_IPI_mask_logical(const struct cpumask *cpumask, int vector) unsigned long mask = cpumask_bits(cpumask)[0]; unsigned long flags; + if (WARN_ONCE(!mask, "empty IPI mask")) + return; + local_irq_save(flags); WARN_ON(mask & ~cpumask_bits(cpu_online_mask)[0]); __default_send_IPI_dest_field(mask, vector, apic->dest_logical); -- cgit v1.2.3-70-g09d2 From b04e6373d694e977c95ae0ae000e2c1e2cf92d73 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 21 Aug 2009 09:48:10 -0700 Subject: x86: don't call '->send_IPI_mask()' with an empty mask MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit As noted in 83d349f35e1ae72268c5104dbf9ab2ae635425d4 ("x86: don't send an IPI to the empty set of CPU's"), some APIC's will be very unhappy with an empty destination mask. That commit added a WARN_ON() for that case, and avoided the resulting problem, but didn't fix the underlying reason for why those empty mask cases happened. This fixes that, by checking the result of 'cpumask_andnot()' of the current CPU actually has any other CPU's left in the set of CPU's to be sent a TLB flush, and not calling down to the IPI code if the mask is empty. The reason this started happening at all is that we started passing just the CPU mask pointers around in commit 4595f9620 ("x86: change flush_tlb_others to take a const struct cpumask"), and when we did that, the cpumask was no longer thread-local. Before that commit, flush_tlb_mm() used to create it's own copy of 'mm->cpu_vm_mask' and pass that copy down to the low-level flush routines after having tested that it was not empty. But after changing it to just pass down the CPU mask pointer, the lower level TLB flush routines would now get a pointer to that 'mm->cpu_vm_mask', and that could still change - and become empty - after the test due to other CPU's having flushed their own TLB's. See http://bugzilla.kernel.org/show_bug.cgi?id=13933 for details. Tested-by: Thomas Björnell Cc: stable@kernel.org Signed-off-by: Linus Torvalds --- arch/x86/mm/tlb.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) (limited to 'arch') diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c index 821e97017e9..c814e144a3f 100644 --- a/arch/x86/mm/tlb.c +++ b/arch/x86/mm/tlb.c @@ -183,18 +183,17 @@ static void flush_tlb_others_ipi(const struct cpumask *cpumask, f->flush_mm = mm; f->flush_va = va; - cpumask_andnot(to_cpumask(f->flush_cpumask), - cpumask, cpumask_of(smp_processor_id())); - - /* - * We have to send the IPI only to - * CPUs affected. - */ - apic->send_IPI_mask(to_cpumask(f->flush_cpumask), - INVALIDATE_TLB_VECTOR_START + sender); + if (cpumask_andnot(to_cpumask(f->flush_cpumask), cpumask, cpumask_of(smp_processor_id()))) { + /* + * We have to send the IPI only to + * CPUs affected. + */ + apic->send_IPI_mask(to_cpumask(f->flush_cpumask), + INVALIDATE_TLB_VECTOR_START + sender); - while (!cpumask_empty(to_cpumask(f->flush_cpumask))) - cpu_relax(); + while (!cpumask_empty(to_cpumask(f->flush_cpumask))) + cpu_relax(); + } f->flush_mm = NULL; f->flush_va = 0; -- cgit v1.2.3-70-g09d2 From 637952ca689013339b977558061fa4ca8e07e1c1 Mon Sep 17 00:00:00 2001 From: Hendrik Brueckner Date: Sun, 23 Aug 2009 18:09:06 +0200 Subject: [S390] set preferred console based on conmode setup_arch() unconditionally sets the preferred console to ttyS. This breaks the use of 3270 devices as the console. Provide a new function to set the default preferred console for s390. The preferred console depends on the conmode parameter that is used to switch between 3270 and 3215 terminal/console mode. Signed-off-by: Hendrik Brueckner Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/setup.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) (limited to 'arch') diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 9717717c6fe..cbb897bc50b 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -154,6 +154,20 @@ static int __init condev_setup(char *str) __setup("condev=", condev_setup); +static void __init set_preferred_console(void) +{ + if (MACHINE_IS_KVM) { + add_preferred_console("hvc", 0, NULL); + s390_virtio_console_init(); + return; + } + + if (CONSOLE_IS_3215 || CONSOLE_IS_SCLP) + add_preferred_console("ttyS", 0, NULL); + if (CONSOLE_IS_3270) + add_preferred_console("tty3270", 0, NULL); +} + static int __init conmode_setup(char *str) { #if defined(CONFIG_SCLP_CONSOLE) || defined(CONFIG_SCLP_VT220_CONSOLE) @@ -168,6 +182,7 @@ static int __init conmode_setup(char *str) if (strncmp(str, "3270", 5) == 0) SET_CONSOLE_3270; #endif + set_preferred_console(); return 1; } @@ -780,9 +795,6 @@ static void __init setup_hwcaps(void) void __init setup_arch(char **cmdline_p) { - /* set up preferred console */ - add_preferred_console("ttyS", 0, NULL); - /* * print what head.S has found out about the machine */ @@ -802,11 +814,9 @@ setup_arch(char **cmdline_p) if (MACHINE_IS_VM) pr_info("Linux is running as a z/VM " "guest operating system in 64-bit mode\n"); - else if (MACHINE_IS_KVM) { + else if (MACHINE_IS_KVM) pr_info("Linux is running under KVM in 64-bit mode\n"); - add_preferred_console("hvc", 0, NULL); - s390_virtio_console_init(); - } else + else pr_info("Linux is running natively in 64-bit mode\n"); #endif /* CONFIG_64BIT */ @@ -851,6 +861,7 @@ setup_arch(char **cmdline_p) /* Setup default console */ conmode_default(); + set_preferred_console(); /* Setup zfcpdump support */ setup_zfcpdump(console_devno); -- cgit v1.2.3-70-g09d2 From 3e475f579e56caf57cadc0cc995c152f9da641a9 Mon Sep 17 00:00:00 2001 From: Martin Michlmayr Date: Mon, 17 Aug 2009 23:34:10 -1000 Subject: [ARM] Kirkwood: __init requires linux/init.h MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Include linux/init.h for __init to fix this error: CC [M] drivers/net/wireless/wl12xx/boot.o In file included from arch/arm/mach-kirkwood/include/mach/gpio.h:13, from arch/arm/include/asm/gpio.h:5, from include/linux/gpio.h:7, from drivers/net/wireless/wl12xx/boot.c:24: arch/arm/plat-orion/include/plat/gpio.h:32: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘orion_gpio_init’ make[6]: *** [drivers/net/wireless/wl12xx/boot.o] Error 1 make[5]: *** [drivers/net/wireless/wl12xx] Error 2 Signed-off-by: Martin Michlmayr Signed-off-by: Nicolas Pitre --- arch/arm/plat-orion/include/plat/gpio.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch') diff --git a/arch/arm/plat-orion/include/plat/gpio.h b/arch/arm/plat-orion/include/plat/gpio.h index 9646a94ed3d..07c430fdc9e 100644 --- a/arch/arm/plat-orion/include/plat/gpio.h +++ b/arch/arm/plat-orion/include/plat/gpio.h @@ -11,6 +11,8 @@ #ifndef __PLAT_GPIO_H #define __PLAT_GPIO_H +#include + /* * GENERIC_GPIO primitives. */ -- cgit v1.2.3-70-g09d2 From c55bf102b675c94edef006ce487d909669221d90 Mon Sep 17 00:00:00 2001 From: John Holland Date: Wed, 19 Aug 2009 13:24:03 -1000 Subject: [ARM] Kirkwood: enable eSATA on QNAP TS-219P Initialize PCI/PCIe on the QNAP TS-119, TS-219 and TS-219P hardware allowing the use of the discrete eSATA controller connected to the PCIe bus in the TS-219P. Signed-off-by: John Holland Tested-by: Thomas Reitmayr Signed-off-by: Martin Michlmayr Signed-off-by: Nicolas Pitre --- arch/arm/configs/kirkwood_defconfig | 2 +- arch/arm/mach-kirkwood/ts219-setup.c | 9 +++++++++ 2 files changed, 10 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/configs/kirkwood_defconfig b/arch/arm/configs/kirkwood_defconfig index 0a1abb978d7..af74cc2de8b 100644 --- a/arch/arm/configs/kirkwood_defconfig +++ b/arch/arm/configs/kirkwood_defconfig @@ -629,7 +629,7 @@ CONFIG_SCSI_LOWLEVEL=y CONFIG_ATA=y # CONFIG_ATA_NONSTANDARD is not set CONFIG_SATA_PMP=y -# CONFIG_SATA_AHCI is not set +CONFIG_SATA_AHCI=y # CONFIG_SATA_SIL24 is not set CONFIG_ATA_SFF=y # CONFIG_SATA_SVW is not set diff --git a/arch/arm/mach-kirkwood/ts219-setup.c b/arch/arm/mach-kirkwood/ts219-setup.c index 01aa213c0a6..ec1a64f263d 100644 --- a/arch/arm/mach-kirkwood/ts219-setup.c +++ b/arch/arm/mach-kirkwood/ts219-setup.c @@ -206,6 +206,15 @@ static void __init qnap_ts219_init(void) } +static int __init ts219_pci_init(void) +{ + if (machine_is_ts219()) + kirkwood_pcie_init(); + + return 0; +} +subsys_initcall(ts219_pci_init); + MACHINE_START(TS219, "QNAP TS-119/TS-219") /* Maintainer: Martin Michlmayr */ .phys_io = KIRKWOOD_REGS_PHYS_BASE, -- cgit v1.2.3-70-g09d2 From a6a06f7b577f89d0b916c5ccaff67ca5ed444a78 Mon Sep 17 00:00:00 2001 From: Amerigo Wang Date: Fri, 21 Aug 2009 04:34:45 -0400 Subject: x86: Fix an incorrect argument of reserve_bootmem() This line looks suspicious, because if this is true, then the 'flags' parameter of function reserve_bootmem_generic() will be unused when !CONFIG_NUMA. I don't think this is what we want. Signed-off-by: WANG Cong Cc: Yinghai Lu Cc: akpm@linux-foundation.org LKML-Reference: <20090821083709.5098.52505.sendpatchset@localhost.localdomain> Signed-off-by: Ingo Molnar --- arch/x86/mm/init_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 6176fe8f29e..ea56b8cbb6a 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -796,7 +796,7 @@ int __init reserve_bootmem_generic(unsigned long phys, unsigned long len, return ret; #else - reserve_bootmem(phys, len, BOOTMEM_DEFAULT); + reserve_bootmem(phys, len, flags); #endif if (phys+len <= MAX_DMA_PFN*PAGE_SIZE) { -- cgit v1.2.3-70-g09d2 From c62e43202e7cf50ca24bce58b255df7bf5de69d0 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 25 Aug 2009 14:50:53 +0100 Subject: x86: Fix build with older binutils and consolidate linker script binutils prior to 2.17 can't deal with the currently possible situation of a new segment following the per-CPU segment, but that new segment being empty - objcopy misplaces the .bss (and perhaps also the .brk) sections outside of any segment. However, the current ordering of sections really just appears to be the effect of cumulative unrelated changes; re-ordering things allows to easily guarantee that the segment following the per-CPU one is non-empty, and at once eliminates the need for the bogus data.init2 segment. Once touching this code, also use the various data section helper macros from include/asm-generic/vmlinux.lds.h. -v2: fix !SMP builds. Signed-off-by: Jan Beulich Cc: LKML-Reference: <4A94085D02000078000119A5@vpn.id2.novell.com> Signed-off-by: Ingo Molnar --- arch/x86/kernel/vmlinux.lds.S | 126 ++++++++++++++++-------------------------- 1 file changed, 47 insertions(+), 79 deletions(-) (limited to 'arch') diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index 78d185d797d..9fc178255c0 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -46,11 +46,10 @@ PHDRS { data PT_LOAD FLAGS(7); /* RWE */ #ifdef CONFIG_X86_64 user PT_LOAD FLAGS(7); /* RWE */ - data.init PT_LOAD FLAGS(7); /* RWE */ #ifdef CONFIG_SMP percpu PT_LOAD FLAGS(7); /* RWE */ #endif - data.init2 PT_LOAD FLAGS(7); /* RWE */ + init PT_LOAD FLAGS(7); /* RWE */ #endif note PT_NOTE FLAGS(0); /* ___ */ } @@ -103,65 +102,43 @@ SECTIONS __stop___ex_table = .; } :text = 0x9090 - RODATA + RO_DATA(PAGE_SIZE) /* Data */ - . = ALIGN(PAGE_SIZE); .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Start of data section */ _sdata = .; - DATA_DATA - CONSTRUCTORS - } :data + + /* init_task */ + INIT_TASK_DATA(THREAD_SIZE) #ifdef CONFIG_X86_32 - /* 32 bit has nosave before _edata */ - . = ALIGN(PAGE_SIZE); - .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { - __nosave_begin = .; - *(.data.nosave) - . = ALIGN(PAGE_SIZE); - __nosave_end = .; - } + /* 32 bit has nosave before _edata */ + NOSAVE_DATA #endif - . = ALIGN(PAGE_SIZE); - .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) { - *(.data.page_aligned) + PAGE_ALIGNED_DATA(PAGE_SIZE) *(.data.idt) - } -#ifdef CONFIG_X86_32 - . = ALIGN(32); -#else - . = ALIGN(PAGE_SIZE); - . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); -#endif - .data.cacheline_aligned : - AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) { - *(.data.cacheline_aligned) - } + CACHELINE_ALIGNED_DATA(CONFIG_X86_L1_CACHE_BYTES) - /* rarely changed data like cpu maps */ -#ifdef CONFIG_X86_32 - . = ALIGN(32); -#else - . = ALIGN(CONFIG_X86_INTERNODE_CACHE_BYTES); -#endif - .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) { - *(.data.read_mostly) + DATA_DATA + CONSTRUCTORS + + /* rarely changed data like cpu maps */ + READ_MOSTLY_DATA(CONFIG_X86_INTERNODE_CACHE_BYTES) /* End of data section */ _edata = .; - } + } :data #ifdef CONFIG_X86_64 #define VSYSCALL_ADDR (-10*1024*1024) -#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data.read_mostly) + \ - SIZEOF(.data.read_mostly) + 4095) & ~(4095)) -#define VSYSCALL_VIRT_ADDR ((ADDR(.data.read_mostly) + \ - SIZEOF(.data.read_mostly) + 4095) & ~(4095)) +#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data) + SIZEOF(.data) + \ + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1)) +#define VSYSCALL_VIRT_ADDR ((ADDR(.data) + SIZEOF(.data) + \ + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1)) #define VLOAD_OFFSET (VSYSCALL_ADDR - VSYSCALL_PHYS_ADDR) #define VLOAD(x) (ADDR(x) - VLOAD_OFFSET) @@ -227,35 +204,29 @@ SECTIONS #endif /* CONFIG_X86_64 */ - /* init_task */ - . = ALIGN(THREAD_SIZE); - .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) { - *(.data.init_task) + /* Init code and data - will be freed after init */ + . = ALIGN(PAGE_SIZE); + .init.begin : AT(ADDR(.init.begin) - LOAD_OFFSET) { + __init_begin = .; /* paired with __init_end */ } -#ifdef CONFIG_X86_64 - :data.init -#endif +#if defined(CONFIG_X86_64) && defined(CONFIG_SMP) /* - * smp_locks might be freed after init - * start/end must be page aligned + * percpu offsets are zero-based on SMP. PERCPU_VADDR() changes the + * output PHDR, so the next output section - .init.text - should + * start another segment - init. */ - . = ALIGN(PAGE_SIZE); - .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { - __smp_locks = .; - *(.smp_locks) - __smp_locks_end = .; - . = ALIGN(PAGE_SIZE); - } + PERCPU_VADDR(0, :percpu) +#endif - /* Init code and data - will be freed after init */ - . = ALIGN(PAGE_SIZE); .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) { - __init_begin = .; /* paired with __init_end */ _sinittext = .; INIT_TEXT _einittext = .; } +#ifdef CONFIG_X86_64 + :init +#endif .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { INIT_DATA @@ -326,17 +297,7 @@ SECTIONS } #endif -#if defined(CONFIG_X86_64) && defined(CONFIG_SMP) - /* - * percpu offsets are zero-based on SMP. PERCPU_VADDR() changes the - * output PHDR, so the next output section - __data_nosave - should - * start another section data.init2. Also, pda should be at the head of - * percpu area. Preallocate it and define the percpu offset symbol - * so that it can be accessed as a percpu variable. - */ - . = ALIGN(PAGE_SIZE); - PERCPU_VADDR(0, :percpu) -#else +#if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP) PERCPU(PAGE_SIZE) #endif @@ -347,15 +308,22 @@ SECTIONS __init_end = .; } + /* + * smp_locks might be freed after init + * start/end must be page aligned + */ + . = ALIGN(PAGE_SIZE); + .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { + __smp_locks = .; + *(.smp_locks) + __smp_locks_end = .; + . = ALIGN(PAGE_SIZE); + } + #ifdef CONFIG_X86_64 .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { - . = ALIGN(PAGE_SIZE); - __nosave_begin = .; - *(.data.nosave) - . = ALIGN(PAGE_SIZE); - __nosave_end = .; - } :data.init2 - /* use another section data.init2, see PERCPU_VADDR() above */ + NOSAVE_DATA + } #endif /* BSS */ -- cgit v1.2.3-70-g09d2 From d8ed1d43e17898761c7221014a15a4c7501d2ff3 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 25 Aug 2009 16:47:46 -0700 Subject: sparc64: Validate linear D-TLB misses. When page alloc debugging is not enabled, we essentially accept any virtual address for linear kernel TLB misses. But with kgdb, kernel address probing, and other facilities we can try to access arbitrary crap. So, make sure the address we miss on will translate to physical memory that actually exists. In order to make this work we have to embed the valid address bitmap into the kernel image. And in order to make that less expensive we make an adjustment, in that the max physical memory address is decreased to "1 << 41", even on the chips that support a 42-bit physical address space. We can do this because bit 41 indicates "I/O space" and thus covers non-memory ranges. The result of this is that: 1) kpte_linear_bitmap shrinks from 2K to 1K in size 2) we need 64K more for the valid address bitmap We can't let the valid address bitmap be dynamically allocated once we start using it to validate TLB misses, otherwise we have crazy issues to deal with wrt. recursive TLB misses and such. If we're in a TLB miss it could be the deepest trap level that's legal inside of the cpu. So if we TLB miss referencing the bitmap, the cpu will be out of trap levels and enter RED state. To guard against out-of-range accesses to the bitmap, we have to check to make sure no bits in the physical address above bit 40 are set. We could export and use last_valid_pfn for this check, but that's just an unnecessary extra memory reference. On the plus side of all this, since we load all of these translations into the special 4MB mapping TSB, and we check the TSB first for TLB misses, there should be absolutely no real cost for these new checks in the TLB miss path. Reported-by: heyongli@gmail.com Signed-off-by: David S. Miller --- arch/sparc/include/asm/pgtable_64.h | 12 ++++++++--- arch/sparc/kernel/ktlb.S | 42 ++++++++++++++++++++++++++++++++---- arch/sparc/mm/init_64.c | 43 +++++++++++++++++++++---------------- arch/sparc/mm/init_64.h | 7 ++++-- 4 files changed, 76 insertions(+), 28 deletions(-) (limited to 'arch') diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h index b049abf9902..0ff92fa2206 100644 --- a/arch/sparc/include/asm/pgtable_64.h +++ b/arch/sparc/include/asm/pgtable_64.h @@ -726,11 +726,17 @@ extern unsigned long pte_file(pte_t); extern pte_t pgoff_to_pte(unsigned long); #define PTE_FILE_MAX_BITS (64UL - PAGE_SHIFT - 1UL) -extern unsigned long *sparc64_valid_addr_bitmap; +extern unsigned long sparc64_valid_addr_bitmap[]; /* Needs to be defined here and not in linux/mm.h, as it is arch dependent */ -#define kern_addr_valid(addr) \ - (test_bit(__pa((unsigned long)(addr))>>22, sparc64_valid_addr_bitmap)) +static inline bool kern_addr_valid(unsigned long addr) +{ + unsigned long paddr = __pa(addr); + + if ((paddr >> 41UL) != 0UL) + return false; + return test_bit(paddr >> 22, sparc64_valid_addr_bitmap); +} extern int page_in_phys_avail(unsigned long paddr); diff --git a/arch/sparc/kernel/ktlb.S b/arch/sparc/kernel/ktlb.S index cef8defcd7a..3ea6e8cde8c 100644 --- a/arch/sparc/kernel/ktlb.S +++ b/arch/sparc/kernel/ktlb.S @@ -151,12 +151,46 @@ kvmap_dtlb_4v: * Must preserve %g1 and %g6 (TAG). */ kvmap_dtlb_tsb4m_miss: - sethi %hi(kpte_linear_bitmap), %g2 - or %g2, %lo(kpte_linear_bitmap), %g2 + /* Clear the PAGE_OFFSET top virtual bits, shift + * down to get PFN, and make sure PFN is in range. + */ + sllx %g4, 21, %g5 - /* Clear the PAGE_OFFSET top virtual bits, then shift - * down to get a 256MB physical address index. + /* Check to see if we know about valid memory at the 4MB + * chunk this physical address will reside within. */ + srlx %g5, 21 + 41, %g2 + brnz,pn %g2, kvmap_dtlb_longpath + nop + + /* This unconditional branch and delay-slot nop gets patched + * by the sethi sequence once the bitmap is properly setup. + */ + .globl valid_addr_bitmap_insn +valid_addr_bitmap_insn: + ba,pt %xcc, 2f + nop + .subsection 2 + .globl valid_addr_bitmap_patch +valid_addr_bitmap_patch: + sethi %hi(sparc64_valid_addr_bitmap), %g7 + or %g7, %lo(sparc64_valid_addr_bitmap), %g7 + .previous + + srlx %g5, 21 + 22, %g2 + srlx %g2, 6, %g5 + and %g2, 63, %g2 + sllx %g5, 3, %g5 + ldx [%g7 + %g5], %g5 + mov 1, %g7 + sllx %g7, %g2, %g7 + andcc %g5, %g7, %g0 + be,pn %xcc, kvmap_dtlb_longpath + +2: sethi %hi(kpte_linear_bitmap), %g2 + or %g2, %lo(kpte_linear_bitmap), %g2 + + /* Get the 256MB physical address index. */ sllx %g4, 21, %g5 mov 1, %g7 srlx %g5, 21 + 28, %g5 diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index ed6be6ba2f4..a70a5e1904d 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -145,7 +145,8 @@ static void __init read_obp_memory(const char *property, cmp_p64, NULL); } -unsigned long *sparc64_valid_addr_bitmap __read_mostly; +unsigned long sparc64_valid_addr_bitmap[VALID_ADDR_BITMAP_BYTES / + sizeof(unsigned long)]; EXPORT_SYMBOL(sparc64_valid_addr_bitmap); /* Kernel physical address base and size in bytes. */ @@ -1874,7 +1875,7 @@ static int pavail_rescan_ents __initdata; * memory list again, and make sure it provides at least as much * memory as 'pavail' does. */ -static void __init setup_valid_addr_bitmap_from_pavail(void) +static void __init setup_valid_addr_bitmap_from_pavail(unsigned long *bitmap) { int i; @@ -1897,8 +1898,7 @@ static void __init setup_valid_addr_bitmap_from_pavail(void) if (new_start <= old_start && new_end >= (old_start + PAGE_SIZE)) { - set_bit(old_start >> 22, - sparc64_valid_addr_bitmap); + set_bit(old_start >> 22, bitmap); goto do_next_page; } } @@ -1919,20 +1919,21 @@ static void __init setup_valid_addr_bitmap_from_pavail(void) } } +static void __init patch_tlb_miss_handler_bitmap(void) +{ + extern unsigned int valid_addr_bitmap_insn[]; + extern unsigned int valid_addr_bitmap_patch[]; + + valid_addr_bitmap_insn[1] = valid_addr_bitmap_patch[1]; + mb(); + valid_addr_bitmap_insn[0] = valid_addr_bitmap_patch[0]; + flushi(&valid_addr_bitmap_insn[0]); +} + void __init mem_init(void) { unsigned long codepages, datapages, initpages; unsigned long addr, last; - int i; - - i = last_valid_pfn >> ((22 - PAGE_SHIFT) + 6); - i += 1; - sparc64_valid_addr_bitmap = (unsigned long *) alloc_bootmem(i << 3); - if (sparc64_valid_addr_bitmap == NULL) { - prom_printf("mem_init: Cannot alloc valid_addr_bitmap.\n"); - prom_halt(); - } - memset(sparc64_valid_addr_bitmap, 0, i << 3); addr = PAGE_OFFSET + kern_base; last = PAGE_ALIGN(kern_size) + addr; @@ -1941,15 +1942,19 @@ void __init mem_init(void) addr += PAGE_SIZE; } - setup_valid_addr_bitmap_from_pavail(); + setup_valid_addr_bitmap_from_pavail(sparc64_valid_addr_bitmap); + patch_tlb_miss_handler_bitmap(); high_memory = __va(last_valid_pfn << PAGE_SHIFT); #ifdef CONFIG_NEED_MULTIPLE_NODES - for_each_online_node(i) { - if (NODE_DATA(i)->node_spanned_pages != 0) { - totalram_pages += - free_all_bootmem_node(NODE_DATA(i)); + { + int i; + for_each_online_node(i) { + if (NODE_DATA(i)->node_spanned_pages != 0) { + totalram_pages += + free_all_bootmem_node(NODE_DATA(i)); + } } } #else diff --git a/arch/sparc/mm/init_64.h b/arch/sparc/mm/init_64.h index 16063870a48..c2f772dbd55 100644 --- a/arch/sparc/mm/init_64.h +++ b/arch/sparc/mm/init_64.h @@ -5,10 +5,13 @@ * marked non-static so that assembler code can get at them. */ -#define MAX_PHYS_ADDRESS (1UL << 42UL) -#define KPTE_BITMAP_CHUNK_SZ (256UL * 1024UL * 1024UL) +#define MAX_PHYS_ADDRESS (1UL << 41UL) +#define KPTE_BITMAP_CHUNK_SZ (256UL * 1024UL * 1024UL) #define KPTE_BITMAP_BYTES \ ((MAX_PHYS_ADDRESS / KPTE_BITMAP_CHUNK_SZ) / 8) +#define VALID_ADDR_BITMAP_CHUNK_SZ (4UL * 1024UL * 1024UL) +#define VALID_ADDR_BITMAP_BYTES \ + ((MAX_PHYS_ADDRESS / VALID_ADDR_BITMAP_CHUNK_SZ) / 8) extern unsigned long kern_linear_pte_xor[2]; extern unsigned long kpte_linear_bitmap[KPTE_BITMAP_BYTES / sizeof(unsigned long)]; -- cgit v1.2.3-70-g09d2 From d560bc61575efae43595cbcb56d0ba3b9450139c Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 25 Aug 2009 12:53:02 -0700 Subject: x86, xen: Suppress WP test on Xen Xen always runs on CPUs which properly support WP enforcement in privileged mode, so there's no need to test for it. This also works around a crash reported by Arnd Hannemann, though I think its just a band-aid for that case. Reported-by: Arnd Hannemann Signed-off-by: Jeremy Fitzhardinge Acked-by: Pekka Enberg Signed-off-by: H. Peter Anvin --- arch/x86/xen/enlighten.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch') diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index e90540a46a0..0b755cd7686 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1059,6 +1059,7 @@ asmlinkage void __init xen_start_kernel(void) /* set up basic CPUID stuff */ cpu_detect(&new_cpu_data); new_cpu_data.hard_math = 1; + new_cpu_data.wp_works_ok = 1; new_cpu_data.x86_capability[0] = cpuid_edx(1); #endif -- cgit v1.2.3-70-g09d2 From 7adb4df410966dfe43e4815256e3215110648fb8 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Tue, 25 Aug 2009 21:06:03 -0700 Subject: x86, xen: Initialize cx to suppress warning Initialize cx before calling xen_cpuid(), in order to suppress the "may be used uninitialized in this function" warning. Signed-off-by: H. Peter Anvin Cc: Jeremy Fitzhardinge --- arch/x86/xen/enlighten.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch') diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 0b755cd7686..eb33aaa8415 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -215,6 +215,7 @@ static __init void xen_init_cpuid_mask(void) (1 << X86_FEATURE_ACPI)); /* disable ACPI */ ax = 1; + cx = 0; xen_cpuid(&ax, &bx, &cx, &dx); /* cpuid claims we support xsave; try enabling it to see what happens */ -- cgit v1.2.3-70-g09d2 From 295594e9cf6ae2efd73371777aa8feba0f87f42f Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 25 Aug 2009 13:44:44 -0700 Subject: x86: Fix vSMP boot crash 2.6.31-rc7 does not boot on vSMP systems: [ 8.501108] CPU31: Thermal monitoring enabled (TM1) [ 8.501127] CPU 31 MCA banks SHD:2 SHD:3 SHD:5 SHD:6 SHD:8 [ 8.650254] CPU31: Intel(R) Xeon(R) CPU E5540 @ 2.53GHz stepping 04 [ 8.710324] Brought up 32 CPUs [ 8.713916] Total of 32 processors activated (162314.96 BogoMIPS). [ 8.721489] ERROR: parent span is not a superset of domain->span [ 8.727686] ERROR: domain->groups does not contain CPU0 [ 8.733091] ERROR: groups don't span domain->span [ 8.737975] ERROR: domain->cpu_power not set [ 8.742416] Ravikiran Thirumalai bisected it to: | commit 2759c3287de27266e06f1f4e82cbd2d65f6a044c | x86: don't call read_apic_id if !cpu_has_apic The problem is that on vSMP systems the CPUID derived initial-APICIDs are overlapping - so we need to fall back on hard_smp_processor_id() which reads the local APIC. Both come from the hardware (influenced by firmware though) so it's a tough call which one to trust. Doing the quirk expresses the vSMP property properly and also does not affect other systems, so we go for this solution instead of a revert. Reported-and-Tested-by: Ravikiran Thirumalai Signed-off-by: Yinghai Lu Cc: Linus Torvalds Cc: Cyrill Gorcunov Cc: Shai Fultheim Cc: Suresh Siddha LKML-Reference: <4A944D3C.5030100@kernel.org> Signed-off-by: Ingo Molnar --- arch/x86/kernel/apic/probe_64.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'arch') diff --git a/arch/x86/kernel/apic/probe_64.c b/arch/x86/kernel/apic/probe_64.c index bc3e880f9b8..fcec2f1d34a 100644 --- a/arch/x86/kernel/apic/probe_64.c +++ b/arch/x86/kernel/apic/probe_64.c @@ -44,6 +44,11 @@ static struct apic *apic_probe[] __initdata = { NULL, }; +static int apicid_phys_pkg_id(int initial_apic_id, int index_msb) +{ + return hard_smp_processor_id() >> index_msb; +} + /* * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode. */ @@ -69,6 +74,11 @@ void __init default_setup_apic_routing(void) printk(KERN_INFO "Setting APIC routing to %s\n", apic->name); } + if (is_vsmp_box()) { + /* need to update phys_pkg_id */ + apic->phys_pkg_id = apicid_phys_pkg_id; + } + /* * Now that apic routing model is selected, configure the * fault handling for intr remapping. -- cgit v1.2.3-70-g09d2 From 7515bf59f87f19b2a17972b74230d2f91756fe3c Mon Sep 17 00:00:00 2001 From: Hendrik Brueckner Date: Tue, 25 Aug 2009 14:31:11 +0200 Subject: tracing: Add syscall tracepoints - s390 arch update This patch includes s390 arch updates to synchronize with latest core changes in the syscalls tracing area. - tracing: Map syscall name to number (syscall_name_to_nr()) - tracing: Call arch_init_ftrace_syscalls at boot - tracing: add support tracepoint ids (set_syscall_{enter,exit}_id()) Signed-off-by: Hendrik Brueckner Cc: Jason Baron Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Lai Jiangshan Cc: Steven Rostedt Cc: Peter Zijlstra Cc: Mathieu Desnoyers Cc: Jiaying Zhang Cc: Martin Bligh Cc: Li Zefan Cc: Martin Schwidefsky Cc: Paul Mundt LKML-Reference: <20090825123111.GD4639@cetus.boeblingen.de.ibm.com> Signed-off-by: Frederic Weisbecker --- arch/s390/kernel/ftrace.c | 36 +++++++++++++++++++++++++++--------- 1 file changed, 27 insertions(+), 9 deletions(-) (limited to 'arch') diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c index 3e298e64f0d..57bdcb1e3cd 100644 --- a/arch/s390/kernel/ftrace.c +++ b/arch/s390/kernel/ftrace.c @@ -220,6 +220,29 @@ struct syscall_metadata *syscall_nr_to_meta(int nr) return syscalls_metadata[nr]; } +int syscall_name_to_nr(char *name) +{ + int i; + + if (!syscalls_metadata) + return -1; + for (i = 0; i < NR_syscalls; i++) + if (syscalls_metadata[i]) + if (!strcmp(syscalls_metadata[i]->name, name)) + return i; + return -1; +} + +void set_syscall_enter_id(int num, int id) +{ + syscalls_metadata[num]->enter_id = id; +} + +void set_syscall_exit_id(int num, int id) +{ + syscalls_metadata[num]->exit_id = id; +} + static struct syscall_metadata *find_syscall_meta(unsigned long syscall) { struct syscall_metadata *start; @@ -237,24 +260,19 @@ static struct syscall_metadata *find_syscall_meta(unsigned long syscall) return NULL; } -void arch_init_ftrace_syscalls(void) +static int __init arch_init_ftrace_syscalls(void) { struct syscall_metadata *meta; int i; - static atomic_t refs; - - if (atomic_inc_return(&refs) != 1) - goto out; syscalls_metadata = kzalloc(sizeof(*syscalls_metadata) * NR_syscalls, GFP_KERNEL); if (!syscalls_metadata) - goto out; + return -ENOMEM; for (i = 0; i < NR_syscalls; i++) { meta = find_syscall_meta((unsigned long)sys_call_table[i]); syscalls_metadata[i] = meta; } - return; -out: - atomic_dec(&refs); + return 0; } +arch_initcall(arch_init_ftrace_syscalls); #endif -- cgit v1.2.3-70-g09d2 From dd86dda24cc1dc70031a7d9250dc3c0c430a50e2 Mon Sep 17 00:00:00 2001 From: Jason Baron Date: Mon, 24 Aug 2009 17:40:14 -0400 Subject: tracing: Define NR_syscalls for x86 (32) Add a NR_syscalls #define for x86. This is used in the syscall events tracing code. Todo: make it dynamic like x86_64. NR_syscalls is the usual name used to determine the number of syscalls supported by the current arch. We want to unify the use of this number across archs that support the syscall tracing. This also prepare to move some of the arch code to core code in the syscall tracing area. Signed-off-by: Jason Baron Cc: Paul Mundt Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Lai Jiangshan Cc: Steven Rostedt Cc: Peter Zijlstra Cc: Mathieu Desnoyers Cc: Jiaying Zhang Cc: Martin Bligh Cc: Li Zefan Cc: Josh Stone Cc: Thomas Gleixner Cc: H. Peter Anwin Cc: Hendrik Brueckner Cc: Heiko Carstens LKML-Reference: <0f33c0f96d198fccc3ddd9ff7f5334ff5cb42706.1251146513.git.jbaron@redhat.com> Signed-off-by: Frederic Weisbecker --- arch/x86/include/asm/unistd_32.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch') diff --git a/arch/x86/include/asm/unistd_32.h b/arch/x86/include/asm/unistd_32.h index 732a3070615..8deaada61bc 100644 --- a/arch/x86/include/asm/unistd_32.h +++ b/arch/x86/include/asm/unistd_32.h @@ -345,6 +345,8 @@ #ifdef __KERNEL__ +#define NR_syscalls 337 + #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_OLD_STAT -- cgit v1.2.3-70-g09d2 From a5a2f8e2acb991327952c45a13f5441fc09dffd6 Mon Sep 17 00:00:00 2001 From: Jason Baron Date: Wed, 26 Aug 2009 12:09:10 -0400 Subject: tracing: Define NR_syscalls for x86_64 Express the available number of syscalls in a standard way by defining NR_syscalls. The common way to define it is to place its definition in asm/unistd.h However, the number of syscalls is defined using __NR_syscall_max in x86-64 after building a dynamic header file "asm-offsets.h" The source file that generates this header, asm-offsets-64.c includes unistd.h, then if we want to express NR_syscalls from __NR_syscall_max in unistd.h only after generating the dynamic header file, we need a watchguard. If unistd.h is included from asm-offsets-64.c, then we are generating asm-offset.h which defines __NR_syscall_max. At this time, we don't want to (we can't) define NR_syscalls, then we do nothing. Otherwise we define NR_syscalls because we know asm-offsets.h has been generated. Signed-off-by: Jason Baron Acked-by: Steven Rostedt Cc: Paul Mundt Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Lai Jiangshan Cc: Peter Zijlstra Cc: Mathieu Desnoyers Cc: Jiaying Zhang Cc: Martin Bligh Cc: Li Zefan Cc: Josh Stone Cc: Thomas Gleixner Cc: H. Peter Anwin Cc: Hendrik Brueckner Cc: Heiko Carstens LKML-Reference: <20090826160910.GB2658@redhat.com> Signed-off-by: Frederic Weisbecker --- arch/x86/include/asm/unistd_64.h | 6 ++++++ arch/x86/kernel/asm-offsets_64.c | 1 + 2 files changed, 7 insertions(+) (limited to 'arch') diff --git a/arch/x86/include/asm/unistd_64.h b/arch/x86/include/asm/unistd_64.h index 900e1617e67..b9f3c60de5f 100644 --- a/arch/x86/include/asm/unistd_64.h +++ b/arch/x86/include/asm/unistd_64.h @@ -688,6 +688,12 @@ __SYSCALL(__NR_perf_counter_open, sys_perf_counter_open) #endif /* __NO_STUBS */ #ifdef __KERNEL__ + +#ifndef COMPILE_OFFSETS +#include +#define NR_syscalls (__NR_syscall_max + 1) +#endif + /* * "Conditional" syscalls * diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c index 898ecc47e12..4a6aeedcd96 100644 --- a/arch/x86/kernel/asm-offsets_64.c +++ b/arch/x86/kernel/asm-offsets_64.c @@ -3,6 +3,7 @@ * This code generates raw asm output which is post-processed to extract * and format the required data. */ +#define COMPILE_OFFSETS #include #include -- cgit v1.2.3-70-g09d2 From 57421dbbdc932d65f0e6a41ebb027a2bfe3d0669 Mon Sep 17 00:00:00 2001 From: Jason Baron Date: Mon, 24 Aug 2009 17:40:22 -0400 Subject: tracing: Convert event tracing code to use NR_syscalls Convert the syscalls event tracing code to use NR_syscalls, instead of FTRACE_SYSCALL_MAX. NR_syscalls is standard accross most arches, and reduces code confusion/complexity. Signed-off-by: Jason Baron Cc: Paul Mundt Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Lai Jiangshan Cc: Steven Rostedt Cc: Peter Zijlstra Cc: Mathieu Desnoyers Cc: Jiaying Zhang Cc: Martin Bligh Cc: Li Zefan Cc: Josh Stone Cc: Thomas Gleixner Cc: H. Peter Anwin Cc: Hendrik Brueckner Cc: Heiko Carstens LKML-Reference: <9b4f1a84ecae57cc6599412772efa36f0d2b815b.1251146513.git.jbaron@redhat.com> Signed-off-by: Frederic Weisbecker --- arch/x86/kernel/ftrace.c | 8 ++++---- kernel/trace/trace_syscalls.c | 24 ++++++++++++------------ 2 files changed, 16 insertions(+), 16 deletions(-) (limited to 'arch') diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c index 3cff1214e17..9dbb527e165 100644 --- a/arch/x86/kernel/ftrace.c +++ b/arch/x86/kernel/ftrace.c @@ -494,7 +494,7 @@ static struct syscall_metadata *find_syscall_meta(unsigned long *syscall) struct syscall_metadata *syscall_nr_to_meta(int nr) { - if (!syscalls_metadata || nr >= FTRACE_SYSCALL_MAX || nr < 0) + if (!syscalls_metadata || nr >= NR_syscalls || nr < 0) return NULL; return syscalls_metadata[nr]; @@ -507,7 +507,7 @@ int syscall_name_to_nr(char *name) if (!syscalls_metadata) return -1; - for (i = 0; i < FTRACE_SYSCALL_MAX; i++) { + for (i = 0; i < NR_syscalls; i++) { if (syscalls_metadata[i]) { if (!strcmp(syscalls_metadata[i]->name, name)) return i; @@ -533,13 +533,13 @@ static int __init arch_init_ftrace_syscalls(void) unsigned long **psys_syscall_table = &sys_call_table; syscalls_metadata = kzalloc(sizeof(*syscalls_metadata) * - FTRACE_SYSCALL_MAX, GFP_KERNEL); + NR_syscalls, GFP_KERNEL); if (!syscalls_metadata) { WARN_ON(1); return -ENOMEM; } - for (i = 0; i < FTRACE_SYSCALL_MAX; i++) { + for (i = 0; i < NR_syscalls; i++) { meta = find_syscall_meta(psys_syscall_table[i]); syscalls_metadata[i] = meta; } diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c index cb7f600cb02..4f5fae6fad9 100644 --- a/kernel/trace/trace_syscalls.c +++ b/kernel/trace/trace_syscalls.c @@ -11,8 +11,8 @@ static DEFINE_MUTEX(syscall_trace_lock); static int sys_refcount_enter; static int sys_refcount_exit; -static DECLARE_BITMAP(enabled_enter_syscalls, FTRACE_SYSCALL_MAX); -static DECLARE_BITMAP(enabled_exit_syscalls, FTRACE_SYSCALL_MAX); +static DECLARE_BITMAP(enabled_enter_syscalls, NR_syscalls); +static DECLARE_BITMAP(enabled_exit_syscalls, NR_syscalls); enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags) @@ -289,7 +289,7 @@ int reg_event_syscall_enter(void *ptr) name = (char *)ptr; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return -ENOSYS; mutex_lock(&syscall_trace_lock); if (!sys_refcount_enter) @@ -312,7 +312,7 @@ void unreg_event_syscall_enter(void *ptr) name = (char *)ptr; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return; mutex_lock(&syscall_trace_lock); sys_refcount_enter--; @@ -330,7 +330,7 @@ int reg_event_syscall_exit(void *ptr) name = (char *)ptr; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return -ENOSYS; mutex_lock(&syscall_trace_lock); if (!sys_refcount_exit) @@ -353,7 +353,7 @@ void unreg_event_syscall_exit(void *ptr) name = (char *)ptr; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return; mutex_lock(&syscall_trace_lock); sys_refcount_exit--; @@ -373,8 +373,8 @@ struct trace_event event_syscall_exit = { #ifdef CONFIG_EVENT_PROFILE -static DECLARE_BITMAP(enabled_prof_enter_syscalls, FTRACE_SYSCALL_MAX); -static DECLARE_BITMAP(enabled_prof_exit_syscalls, FTRACE_SYSCALL_MAX); +static DECLARE_BITMAP(enabled_prof_enter_syscalls, NR_syscalls); +static DECLARE_BITMAP(enabled_prof_exit_syscalls, NR_syscalls); static int sys_prof_refcount_enter; static int sys_prof_refcount_exit; @@ -420,7 +420,7 @@ int reg_prof_syscall_enter(char *name) int num; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return -ENOSYS; mutex_lock(&syscall_trace_lock); @@ -442,7 +442,7 @@ void unreg_prof_syscall_enter(char *name) int num; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return; mutex_lock(&syscall_trace_lock); @@ -481,7 +481,7 @@ int reg_prof_syscall_exit(char *name) int num; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return -ENOSYS; mutex_lock(&syscall_trace_lock); @@ -503,7 +503,7 @@ void unreg_prof_syscall_exit(char *name) int num; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return; mutex_lock(&syscall_trace_lock); -- cgit v1.2.3-70-g09d2 From 117226d15850387b55fd01675917ee4fcb9699e8 Mon Sep 17 00:00:00 2001 From: Jason Baron Date: Mon, 24 Aug 2009 17:40:26 -0400 Subject: tracing: Remove FTRACE_SYSCALL_MAX definitions Remove the FTRACE_SYSCALL_MAX definitions now that we have converted the syscall event tracing code to use NR_syscalls. Signed-off-by: Jason Baron Cc: Paul Mundt Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Lai Jiangshan Cc: Steven Rostedt Cc: Peter Zijlstra Cc: Mathieu Desnoyers Cc: Jiaying Zhang Cc: Martin Bligh Cc: Li Zefan Cc: Josh Stone Cc: Thomas Gleixner Cc: H. Peter Anwin Cc: Hendrik Brueckner Cc: Heiko Carstens LKML-Reference: Signed-off-by: Frederic Weisbecker --- arch/x86/include/asm/ftrace.h | 7 ------- 1 file changed, 7 deletions(-) (limited to 'arch') diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h index 71136545187..db24c2278be 100644 --- a/arch/x86/include/asm/ftrace.h +++ b/arch/x86/include/asm/ftrace.h @@ -28,13 +28,6 @@ #endif -/* FIXME: I don't want to stay hardcoded */ -#ifdef CONFIG_X86_64 -# define FTRACE_SYSCALL_MAX 299 -#else -# define FTRACE_SYSCALL_MAX 337 -#endif - #ifdef CONFIG_FUNCTION_TRACER #define MCOUNT_ADDR ((long)(mcount)) #define MCOUNT_INSN_SIZE 5 /* sizeof mcount call */ -- cgit v1.2.3-70-g09d2 From dd9b3e84f2095ed19582f4df5d20e1e40c01ca3c Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Wed, 17 Jun 2009 13:13:57 -0700 Subject: m68k: cnt reaches -1, not 0 With the postfix decrement cnt reaches -1 rather than 0. Signed-off-by: Roel Kluin Cc: Geert Uytterhoeven Signed-off-by: Andrew Morton Signed-off-by: Geert Uytterhoeven --- arch/m68k/amiga/config.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c index 6e562751ad5..6c74751c7b8 100644 --- a/arch/m68k/amiga/config.c +++ b/arch/m68k/amiga/config.c @@ -574,10 +574,11 @@ static int a2000_hwclk(int op, struct rtc_time *t) tod_2000.cntrl1 = TOD2000_CNTRL1_HOLD; - while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) { + while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt) { tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; udelay(70); tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; + --cnt; } if (!cnt) @@ -649,10 +650,11 @@ static int amiga_set_clock_mmss(unsigned long nowtime) tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; - while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) { + while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt) { tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; udelay(70); tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; + --cnt; } if (!cnt) -- cgit v1.2.3-70-g09d2 From dc71c7d5dbd8cd8bb6e3b548ddc0454b64ded5f8 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Wed, 17 Jun 2009 13:13:58 -0700 Subject: arch/m68k/include/asm/motorola_pgalloc.h: fix kunmap arg arch/m68k/include/asm/motorola_pgalloc.h: In function 'pte_alloc_one': arch/m68k/include/asm/motorola_pgalloc.h:44: warning: passing argument 1 of 'kunmap' from incompatible pointer type Also, remove unneeded test for kmap() failure. Signed-off-by: Andrew Morton Signed-off-by: Geert Uytterhoeven --- arch/m68k/include/asm/motorola_pgalloc.h | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) (limited to 'arch') diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h index 15ee4c74a9f..2f02f264e69 100644 --- a/arch/m68k/include/asm/motorola_pgalloc.h +++ b/arch/m68k/include/asm/motorola_pgalloc.h @@ -36,12 +36,10 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addres return NULL; pte = kmap(page); - if (pte) { - __flush_page_to_ram(pte); - flush_tlb_kernel_page(pte); - nocache_page(pte); - } - kunmap(pte); + __flush_page_to_ram(pte); + flush_tlb_kernel_page(pte); + nocache_page(pte); + kunmap(page); pgtable_page_ctor(page); return page; } -- cgit v1.2.3-70-g09d2 From 9fd926b4ab1e38ac5e3eb3ba0afb56726d90aa88 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Thu, 9 Jul 2009 17:08:38 +0400 Subject: m68k: Fix redefinition of pgprot_noncached arch/m68k/include/asm/pgtable_mm.h:148:1: warning: "pgprot_noncached" redefined In file included from arch/m68k/include/asm/pgtable_mm.h:138, from arch/m68k/include/asm/pgtable.h:4, from include/linux/mm.h:40, from include/linux/pagemap.h:7, from include/linux/blkdev.h:12, from arch/m68k/emu/nfblock.c:17: include/asm-generic/pgtable.h:133:1: warning: this is the location of the previous definition pgprot_noncached() should be defined _before_ including asm-generic/pgtable.h Signed-off-by: Alexey Dobriyan Signed-off-by: Geert Uytterhoeven --- arch/m68k/include/asm/pgtable_mm.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/m68k/include/asm/pgtable_mm.h b/arch/m68k/include/asm/pgtable_mm.h index 0b604f0f192..fe60e1abaee 100644 --- a/arch/m68k/include/asm/pgtable_mm.h +++ b/arch/m68k/include/asm/pgtable_mm.h @@ -135,8 +135,6 @@ static inline void update_mmu_cache(struct vm_area_struct *vma, #endif #ifndef __ASSEMBLY__ -#include - /* * Macro to mark a page protection value as "uncacheable". */ @@ -154,6 +152,7 @@ static inline void update_mmu_cache(struct vm_area_struct *vma, ? (__pgprot((pgprot_val(prot) & _CACHEMASK040) | _PAGE_NOCACHE_S)) \ : (prot))) +#include #endif /* !__ASSEMBLY__ */ /* -- cgit v1.2.3-70-g09d2 From 9848484fad9ddeb18f18f02f9ecdcd330ac9a216 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 21 Aug 2009 22:03:54 +0200 Subject: m68k,m68knommu: Wire up rt_tgsigqueueinfo and perf_counter_open Signed-off-by: Geert Uytterhoeven Acked-by: Greg Ungerer --- arch/m68k/include/asm/unistd.h | 4 +++- arch/m68k/kernel/entry.S | 2 ++ arch/m68knommu/kernel/syscalltable.S | 2 ++ 3 files changed, 7 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h index aa29a8640f7..946d8691f2b 100644 --- a/arch/m68k/include/asm/unistd.h +++ b/arch/m68k/include/asm/unistd.h @@ -334,10 +334,12 @@ #define __NR_inotify_init1 328 #define __NR_preadv 329 #define __NR_pwritev 330 +#define __NR_rt_tgsigqueueinfo 331 +#define __NR_perf_counter_open 332 #ifdef __KERNEL__ -#define NR_syscalls 331 +#define NR_syscalls 333 #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S index 8744f60c07a..c3735cd6207 100644 --- a/arch/m68k/kernel/entry.S +++ b/arch/m68k/kernel/entry.S @@ -755,4 +755,6 @@ sys_call_table: .long sys_inotify_init1 .long sys_preadv .long sys_pwritev /* 330 */ + .long sys_rt_tgsigqueueinfo + .long sys_perf_counter_open diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S index c0b8782832f..0ae123e0898 100644 --- a/arch/m68knommu/kernel/syscalltable.S +++ b/arch/m68knommu/kernel/syscalltable.S @@ -349,6 +349,8 @@ ENTRY(sys_call_table) .long sys_inotify_init1 .long sys_preadv .long sys_pwritev /* 330 */ + .long sys_rt_tgsigqueueinfo + .long sys_perf_counter_open .rept NR_syscalls-(.-sys_call_table)/4 .long sys_ni_syscall -- cgit v1.2.3-70-g09d2 From 7b6a09f3d6aedeaac923824af2a5df30300b56e9 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sun, 23 Aug 2009 22:54:32 +0000 Subject: powerpc/ps3: Add missing check for PS3 to rtc-ps3 platform device registration On non-PS3, we get: | kernel BUG at drivers/rtc/rtc-ps3.c:36! because the rtc-ps3 platform device is registered unconditionally in a kernel with builtin support for PS3. Reported-by: Sachin Sant Signed-off-by: Geert Uytterhoeven Acked-by: Geoff Levand Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/ps3/time.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch') diff --git a/arch/powerpc/platforms/ps3/time.c b/arch/powerpc/platforms/ps3/time.c index b178a1e66c9..40b5cb43300 100644 --- a/arch/powerpc/platforms/ps3/time.c +++ b/arch/powerpc/platforms/ps3/time.c @@ -21,6 +21,7 @@ #include #include +#include #include #include #include @@ -84,6 +85,9 @@ static int __init ps3_rtc_init(void) { struct platform_device *pdev; + if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) + return -ENODEV; + pdev = platform_device_register_simple("rtc-ps3", -1, NULL, 0); if (IS_ERR(pdev)) return PTR_ERR(pdev); -- cgit v1.2.3-70-g09d2 From b080f187adb79bbcbe28814b07cbc1ead34c469a Mon Sep 17 00:00:00 2001 From: Geoff Levand Date: Tue, 25 Aug 2009 07:53:35 +0000 Subject: powerpc/ps3: Update ps3_defconfig Update ps3_defconfig. o Refresh for 2.6.31. o Remove MTD support. o Add more HID drivers. Signed-off-by: Geoff Levand Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/configs/ps3_defconfig | 211 +++++++++++++------------------------ 1 file changed, 75 insertions(+), 136 deletions(-) (limited to 'arch') diff --git a/arch/powerpc/configs/ps3_defconfig b/arch/powerpc/configs/ps3_defconfig index e28e65e7a0e..7de127e4cee 100644 --- a/arch/powerpc/configs/ps3_defconfig +++ b/arch/powerpc/configs/ps3_defconfig @@ -1,13 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc5 -# Fri May 15 10:37:00 2009 +# Linux kernel version: 2.6.31-rc7 +# Mon Aug 24 17:38:50 2009 # CONFIG_PPC64=y # # Processor support # +CONFIG_PPC_BOOK3S_64=y CONFIG_PPC_BOOK3S=y # CONFIG_POWER4_ONLY is not set CONFIG_POWER3=y @@ -20,6 +21,7 @@ CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_64=y CONFIG_PPC_MM_SLICES=y CONFIG_VIRT_CPU_ACCOUNTING=y +CONFIG_PPC_HAVE_PMU_SUPPORT=y CONFIG_SMP=y CONFIG_NR_CPUS=2 CONFIG_64BIT=y @@ -31,6 +33,7 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y CONFIG_HAVE_SETUP_PER_CPU_AREA=y CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y @@ -41,7 +44,6 @@ CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_ARCH_HAS_ILOG2_U64=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_ARCH_NO_VIRT_TO_BUS=y CONFIG_PPC=y @@ -62,6 +64,7 @@ CONFIG_DTC=y # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -113,7 +116,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_EXTRA_PASS=y -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -126,7 +128,14 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y +# CONFIG_STRIP_ASM_SYMS is not set # CONFIG_COMPAT_BRK is not set CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -145,6 +154,11 @@ CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_DMA_ATTRS=y CONFIG_USE_GENERIC_SMP_HELPERS=y + +# +# GCOV-based kernel profiling +# +# CONFIG_GCOV_KERNEL is not set # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -210,7 +224,7 @@ CONFIG_PPC_CELL=y # # Cell Broadband Engine options # -CONFIG_SPU_FS=y +CONFIG_SPU_FS=m CONFIG_SPU_FS_64K_LS=y # CONFIG_SPU_TRACE is not set CONFIG_SPU_BASE=y @@ -255,6 +269,7 @@ CONFIG_BINFMT_MISC=y CONFIG_HUGETLB_PAGE_SIZE_VARIABLE=y # CONFIG_IOMMU_VMERGE is not set CONFIG_IOMMU_HELPER=y +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -285,9 +300,9 @@ CONFIG_MIGRATION=y CONFIG_PHYS_ADDR_T_64BIT=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_ARCH_MEMORY_PROBE=y CONFIG_PPC_HAS_HASH_64K=y CONFIG_PPC_4K_PAGES=y @@ -399,6 +414,7 @@ CONFIG_IPV6_NDISC_NODETYPE=y # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -433,11 +449,14 @@ CONFIG_BT_HCIBTUSB=m CONFIG_WIRELESS=y CONFIG_CFG80211=m # CONFIG_CFG80211_REG_DEBUG is not set +# CONFIG_CFG80211_DEBUGFS is not set # CONFIG_WIRELESS_OLD_REGULATORY is not set CONFIG_WIRELESS_EXT=y # CONFIG_WIRELESS_EXT_SYSFS is not set # CONFIG_LIB80211 is not set CONFIG_MAC80211=m +CONFIG_MAC80211_DEFAULT_PS=y +CONFIG_MAC80211_DEFAULT_PS_VALUE=1 # # Rate control algorithm selection @@ -447,7 +466,6 @@ CONFIG_MAC80211_RC_PID=y CONFIG_MAC80211_RC_DEFAULT_PID=y # CONFIG_MAC80211_RC_DEFAULT_MINSTREL is not set CONFIG_MAC80211_RC_DEFAULT="pid" -# CONFIG_MAC80211_MESH is not set # CONFIG_MAC80211_LEDS is not set # CONFIG_MAC80211_DEBUGFS is not set # CONFIG_MAC80211_DEBUG_MENU is not set @@ -472,77 +490,7 @@ CONFIG_EXTRA_FIRMWARE="" # CONFIG_DEBUG_DEVRES is not set # CONFIG_SYS_HYPERVISOR is not set # CONFIG_CONNECTOR is not set -CONFIG_MTD=y -CONFIG_MTD_DEBUG=y -CONFIG_MTD_DEBUG_VERBOSE=0 -# CONFIG_MTD_CONCAT is not set -# CONFIG_MTD_PARTITIONS is not set -# CONFIG_MTD_TESTS is not set - -# -# User Modules And Translation Layers -# -# CONFIG_MTD_CHAR is not set -CONFIG_MTD_BLKDEVS=y -CONFIG_MTD_BLOCK=y -# CONFIG_FTL is not set -# CONFIG_NFTL is not set -# CONFIG_INFTL is not set -# CONFIG_RFD_FTL is not set -# CONFIG_SSFDC is not set -# CONFIG_MTD_OOPS is not set - -# -# RAM/ROM/Flash chip drivers -# -# CONFIG_MTD_CFI is not set -# CONFIG_MTD_JEDECPROBE is not set -CONFIG_MTD_MAP_BANK_WIDTH_1=y -CONFIG_MTD_MAP_BANK_WIDTH_2=y -CONFIG_MTD_MAP_BANK_WIDTH_4=y -# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set -# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set -# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set -CONFIG_MTD_CFI_I1=y -CONFIG_MTD_CFI_I2=y -# CONFIG_MTD_CFI_I4 is not set -# CONFIG_MTD_CFI_I8 is not set -# CONFIG_MTD_RAM is not set -# CONFIG_MTD_ROM is not set -# CONFIG_MTD_ABSENT is not set - -# -# Mapping drivers for chip access -# -# CONFIG_MTD_COMPLEX_MAPPINGS is not set -# CONFIG_MTD_PLATRAM is not set - -# -# Self-contained MTD device drivers -# -# CONFIG_MTD_SLRAM is not set -# CONFIG_MTD_PHRAM is not set -# CONFIG_MTD_MTDRAM is not set -# CONFIG_MTD_BLOCK2MTD is not set - -# -# Disk-On-Chip Device Drivers -# -# CONFIG_MTD_DOC2000 is not set -# CONFIG_MTD_DOC2001 is not set -# CONFIG_MTD_DOC2001PLUS is not set -# CONFIG_MTD_NAND is not set -# CONFIG_MTD_ONENAND is not set - -# -# LPDDR flash memory drivers -# -# CONFIG_MTD_LPDDR is not set - -# -# UBI - Unsorted block images -# -# CONFIG_MTD_UBI is not set +# CONFIG_MTD is not set CONFIG_OF_DEVICE=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y @@ -590,10 +538,6 @@ CONFIG_BLK_DEV_SR=y # CONFIG_BLK_DEV_SR_VENDOR is not set CONFIG_CHR_DEV_SG=m # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# CONFIG_SCSI_MULTI_LUN=y # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -626,7 +570,6 @@ CONFIG_BLK_DEV_DM=m # CONFIG_DM_UEVENT is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -646,10 +589,11 @@ CONFIG_MII=m # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set CONFIG_NETDEV_1000=y CONFIG_GELIC_NET=y CONFIG_GELIC_WIRELESS=y -CONFIG_GELIC_WIRELESS_OLD_PSK_INTERFACE=y +# CONFIG_GELIC_WIRELESS_OLD_PSK_INTERFACE is not set # CONFIG_NETDEV_10000 is not set # @@ -669,8 +613,7 @@ CONFIG_WLAN_80211=y # CONFIG_HOSTAP is not set # CONFIG_B43 is not set # CONFIG_B43LEGACY is not set -CONFIG_ZD1211RW=m -# CONFIG_ZD1211RW_DEBUG is not set +# CONFIG_ZD1211RW is not set # CONFIG_RT2X00 is not set # @@ -682,7 +625,7 @@ CONFIG_ZD1211RW=m # # CONFIG_USB_CATC is not set # CONFIG_USB_KAWETH is not set -CONFIG_USB_PEGASUS=m +# CONFIG_USB_PEGASUS is not set # CONFIG_USB_RTL8150 is not set CONFIG_USB_USBNET=m CONFIG_USB_NET_AX8817X=m @@ -693,10 +636,11 @@ CONFIG_USB_NET_AX8817X=m # CONFIG_USB_NET_GL620A is not set # CONFIG_USB_NET_NET1080 is not set # CONFIG_USB_NET_PLUSB is not set -CONFIG_USB_NET_MCS7830=m +# CONFIG_USB_NET_MCS7830 is not set # CONFIG_USB_NET_RNDIS_HOST is not set # CONFIG_USB_NET_CDC_SUBSET is not set # CONFIG_USB_NET_ZAURUS is not set +# CONFIG_USB_NET_INT51X1 is not set # CONFIG_WAN is not set CONFIG_PPP=m CONFIG_PPP_MULTILINK=y @@ -771,8 +715,7 @@ CONFIG_DEVKMEM=y # CONFIG_UNIX98_PTYS=y # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set -CONFIG_LEGACY_PTYS=y -CONFIG_LEGACY_PTY_COUNT=16 +# CONFIG_LEGACY_PTYS is not set # CONFIG_HVC_UDBG is not set # CONFIG_IPMI_HANDLER is not set # CONFIG_HW_RANDOM is not set @@ -782,6 +725,11 @@ CONFIG_LEGACY_PTY_COUNT=16 # CONFIG_TCG_TPM is not set # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -805,22 +753,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -898,6 +831,11 @@ CONFIG_SND_SUPPORT_OLD_API=y CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SND_VERBOSE_PRINTK is not set # CONFIG_SND_DEBUG is not set +# CONFIG_SND_RAWMIDI_SEQ is not set +# CONFIG_SND_OPL3_LIB_SEQ is not set +# CONFIG_SND_OPL4_LIB_SEQ is not set +# CONFIG_SND_SBAWE_SEQ is not set +# CONFIG_SND_EMU10K1_SEQ is not set # CONFIG_SND_DRIVERS is not set CONFIG_SND_PPC=y CONFIG_SND_PS3=m @@ -930,29 +868,34 @@ CONFIG_USB_HIDDEV=y # Special HID drivers # # CONFIG_HID_A4TECH is not set -# CONFIG_HID_APPLE is not set -# CONFIG_HID_BELKIN is not set -# CONFIG_HID_CHERRY is not set +CONFIG_HID_APPLE=m +CONFIG_HID_BELKIN=m +CONFIG_HID_CHERRY=m # CONFIG_HID_CHICONY is not set # CONFIG_HID_CYPRESS is not set -# CONFIG_DRAGONRISE_FF is not set -# CONFIG_HID_EZKEY is not set +# CONFIG_HID_DRAGONRISE is not set +CONFIG_HID_EZKEY=m # CONFIG_HID_KYE is not set # CONFIG_HID_GYRATION is not set # CONFIG_HID_KENSINGTON is not set -# CONFIG_HID_LOGITECH is not set -# CONFIG_HID_MICROSOFT is not set +CONFIG_HID_LOGITECH=m +# CONFIG_LOGITECH_FF is not set +# CONFIG_LOGIRUMBLEPAD2_FF is not set +CONFIG_HID_MICROSOFT=m # CONFIG_HID_MONTEREY is not set # CONFIG_HID_NTRIG is not set # CONFIG_HID_PANTHERLORD is not set # CONFIG_HID_PETALYNX is not set # CONFIG_HID_SAMSUNG is not set CONFIG_HID_SONY=m -# CONFIG_HID_SUNPLUS is not set -# CONFIG_GREENASIA_FF is not set +CONFIG_HID_SUNPLUS=m +# CONFIG_HID_GREENASIA is not set +CONFIG_HID_SMARTJOYPLUS=m +# CONFIG_SMARTJOYPLUS_FF is not set # CONFIG_HID_TOPSEED is not set -# CONFIG_THRUSTMASTER_FF is not set -# CONFIG_ZEROPLUS_FF is not set +# CONFIG_HID_THRUSTMASTER is not set +# CONFIG_HID_WACOM is not set +# CONFIG_HID_ZEROPLUS is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y @@ -988,6 +931,8 @@ CONFIG_USB_EHCI_BIG_ENDIAN_MMIO=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=m +# CONFIG_USB_OHCI_HCD_PPC_OF_BE is not set +# CONFIG_USB_OHCI_HCD_PPC_OF_LE is not set # CONFIG_USB_OHCI_HCD_PPC_OF is not set # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set CONFIG_USB_OHCI_BIG_ENDIAN_MMIO=y @@ -1115,6 +1060,10 @@ CONFIG_RTC_DRV_PS3=m # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1141,11 +1090,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1205,7 +1155,6 @@ CONFIG_MISC_FILESYSTEMS=y # CONFIG_BEFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EFS_FS is not set -# CONFIG_JFFS2_FS is not set # CONFIG_CRAMFS is not set # CONFIG_SQUASHFS is not set # CONFIG_VXFS_FS is not set @@ -1222,6 +1171,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1359,7 +1309,6 @@ CONFIG_DEBUG_MEMORY_INIT=y CONFIG_DEBUG_LIST=y # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1374,31 +1323,21 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_RING_BUFFER=y +CONFIG_EVENT_TRACING=y +CONFIG_CONTEXT_SWITCH_TRACER=y CONFIG_TRACING=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_IRQSOFF_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set -# CONFIG_FTRACE_STARTUP_TEST is not set +# CONFIG_FTRACE is not set # CONFIG_DYNAMIC_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 CONFIG_DEBUG_STACKOVERFLOW=y # CONFIG_DEBUG_STACK_USAGE is not set +# CONFIG_PPC_EMULATED_STATS is not set # CONFIG_CODE_PATCHING_SELFTEST is not set # CONFIG_FTR_FIXUP_SELFTEST is not set # CONFIG_MSI_BITMAP_SELFTEST is not set -- cgit v1.2.3-70-g09d2 From 825e1e23914b9c3dbc49ee8c5a1d1cb421c1270a Mon Sep 17 00:00:00 2001 From: Grant Grundler Date: Fri, 28 Aug 2009 15:00:36 -0400 Subject: parisc: fix warning in traps.c On Tue, Aug 18, 2009 at 01:45:17PM -0400, John David Anglin wrote: > CC arch/parisc/kernel/traps.o > arch/parisc/kernel/traps.c: In function 'handle_interruption': > arch/parisc/kernel/traps.c:535:18: warning: operation on 'regs->iasq[0]' > may be undefined Yes - Line 535 should use both [0] and [1]. Reported-by: John David Anglin Signed-off-by: Grant Grundler Signed-off-by: Kyle McMartin Signed-off-by: Linus Torvalds --- arch/parisc/kernel/traps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c index 528f0ff9b27..8b58bf0b7d5 100644 --- a/arch/parisc/kernel/traps.c +++ b/arch/parisc/kernel/traps.c @@ -532,7 +532,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs) /* Kill the user process later */ regs->iaoq[0] = 0 | 3; regs->iaoq[1] = regs->iaoq[0] + 4; - regs->iasq[0] = regs->iasq[0] = regs->sr[7]; + regs->iasq[0] = regs->iasq[1] = regs->sr[7]; regs->gr[0] &= ~PSW_B; return; } -- cgit v1.2.3-70-g09d2 From f2486f26692433ba27cc10991a085b503b0422a3 Mon Sep 17 00:00:00 2001 From: "Luck, Tony" Date: Mon, 31 Aug 2009 16:54:03 -0700 Subject: [IA64] Fix warning in dma-mapping.c arch/ia64/kernel/dma-mapping.c:14: warning: control reaches end of non-void function arch/ia64/kernel/dma-mapping.c:14: warning: no return statement in function returning non-void This warning was introduced by commit: 390bd132b2831a2ad0268e84bffbfc0680debfe5 Add dma_debug_init() for ia64 Signed-off-by: Tony Luck --- arch/ia64/kernel/dma-mapping.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c index 39a3cd0a417..f2c1600da09 100644 --- a/arch/ia64/kernel/dma-mapping.c +++ b/arch/ia64/kernel/dma-mapping.c @@ -10,7 +10,9 @@ EXPORT_SYMBOL(dma_ops); static int __init dma_init(void) { - dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES); + dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES); + + return 0; } fs_initcall(dma_init); -- cgit v1.2.3-70-g09d2 From 5afe18d2f58812f3924edbd215464e5e3e8545e7 Mon Sep 17 00:00:00 2001 From: Jiri Bohac Date: Wed, 2 Sep 2009 11:00:46 +0200 Subject: [IA64] fix csum_ipv6_magic() The 32-bit parameters (len and csum) of csum_ipv6_magic() are passed in 64-bit registers in2 and in4. The high order 32 bits of the registers were never cleared, and garbage was sometimes calculated into the checksum. Fix this by clearing the high order 32 bits of these registers. Signed-off-by: Jiri Bohac Signed-off-by: Tony Luck --- arch/ia64/lib/ip_fast_csum.S | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/ia64/lib/ip_fast_csum.S b/arch/ia64/lib/ip_fast_csum.S index 1f86aeb2c94..620d9dc5220 100644 --- a/arch/ia64/lib/ip_fast_csum.S +++ b/arch/ia64/lib/ip_fast_csum.S @@ -96,20 +96,22 @@ END(ip_fast_csum) GLOBAL_ENTRY(csum_ipv6_magic) ld4 r20=[in0],4 ld4 r21=[in1],4 - dep r15=in3,in2,32,16 + zxt4 in2=in2 ;; ld4 r22=[in0],4 ld4 r23=[in1],4 - mux1 r15=r15,@rev + dep r15=in3,in2,32,16 ;; ld4 r24=[in0],4 ld4 r25=[in1],4 - shr.u r15=r15,16 + mux1 r15=r15,@rev add r16=r20,r21 add r17=r22,r23 + zxt4 in4=in4 ;; ld4 r26=[in0],4 ld4 r27=[in1],4 + shr.u r15=r15,16 add r18=r24,r25 add r8=r16,r17 ;; -- cgit v1.2.3-70-g09d2 From a3df6f7d3090e611bcc774cd2cba45ae016d37e1 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Thu, 3 Sep 2009 11:52:02 +1000 Subject: perf_counter/powerpc: Fix cache event codes for POWER7 I had the codes for L1 D-cache load accesses and misses swapped around, and the wrong codes for LL-cache accesses and misses. This corrects them. Reported-by: Corey Ashford Signed-off-by: Paul Mackerras Cc: Peter Zijlstra Cc: LKML-Reference: <19103.8514.709300.585484@cargo.ozlabs.ibm.com> Signed-off-by: Ingo Molnar --- arch/powerpc/kernel/power7-pmu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/powerpc/kernel/power7-pmu.c b/arch/powerpc/kernel/power7-pmu.c index 388cf57ad82..018d094d92f 100644 --- a/arch/powerpc/kernel/power7-pmu.c +++ b/arch/powerpc/kernel/power7-pmu.c @@ -317,7 +317,7 @@ static int power7_generic_events[] = { */ static int power7_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { [C(L1D)] = { /* RESULT_ACCESS RESULT_MISS */ - [C(OP_READ)] = { 0x400f0, 0xc880 }, + [C(OP_READ)] = { 0xc880, 0x400f0 }, [C(OP_WRITE)] = { 0, 0x300f0 }, [C(OP_PREFETCH)] = { 0xd8b8, 0 }, }, @@ -327,8 +327,8 @@ static int power7_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { [C(OP_PREFETCH)] = { 0x408a, 0 }, }, [C(LL)] = { /* RESULT_ACCESS RESULT_MISS */ - [C(OP_READ)] = { 0x6080, 0x6084 }, - [C(OP_WRITE)] = { 0x6082, 0x6086 }, + [C(OP_READ)] = { 0x16080, 0x26080 }, + [C(OP_WRITE)] = { 0x16082, 0x26082 }, [C(OP_PREFETCH)] = { 0, 0 }, }, [C(DTLB)] = { /* RESULT_ACCESS RESULT_MISS */ -- cgit v1.2.3-70-g09d2 From e6617c6ec28a17cf2f90262b835ec05b9b861400 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 3 Sep 2009 02:35:20 -0700 Subject: sparc64: Kill spurious NMI watchdog triggers by increasing limit to 30 seconds. This is a compromise and a temporary workaround for bootup NMI watchdog triggers some people see with qla2xxx devices present. This happens when, for example: CPU 0 is in the driver init and looping submitting mailbox commands to load the firmware, then waiting for completion. CPU 1 is receiving the device interrupts. CPU 1 is where the NMI watchdog triggers. CPU 0 is submitting mailbox commands fast enough that by the time CPU 1 returns from the device interrupt handler, a new one is pending. This sequence runs for more than 5 seconds. The problematic case is CPU 1's timer interrupt running when the barrage of device interrupts begin. Then we have: timer interrupt return for softirq checking pending, thus enable interrupts qla2xxx interrupt return qla2xxx interrupt return ... 5+ seconds pass final qla2xxx interrupt for fw load return run timer softirq return At some point in the multi-second qla2xxx interrupt storm we trigger the NMI watchdog on CPU 1 from the NMI interrupt handler. The timer softirq, once we get back to running it, is smart enough to run the timer work enough times to make up for the missed timer interrupts. However, the NMI watchdogs (both x86 and sparc) use the timer interrupt count to notice the cpu is wedged. But in the above scenerio we'll receive only one such timer interrupt even if we last all the way back to running the timer softirq. The default watchdog trigger point is only 5 seconds, which is pretty low (the softwatchdog triggers at 60 seconds). So increase it to 30 seconds for now. Signed-off-by: David S. Miller --- arch/sparc/kernel/nmi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c index 2c0cc72d295..b75bf502cd4 100644 --- a/arch/sparc/kernel/nmi.c +++ b/arch/sparc/kernel/nmi.c @@ -103,7 +103,7 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs) } if (!touched && __get_cpu_var(last_irq_sum) == sum) { local_inc(&__get_cpu_var(alert_counter)); - if (local_read(&__get_cpu_var(alert_counter)) == 5 * nmi_hz) + if (local_read(&__get_cpu_var(alert_counter)) == 30 * nmi_hz) die_nmi("BUG: NMI Watchdog detected LOCKUP", regs, panic_on_timeout); } else { -- cgit v1.2.3-70-g09d2 From bd4352cadfacb9084c97c853b025fac010266c26 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 4 Sep 2009 03:38:54 -0700 Subject: sparc64: Fix bootup with mcount in some configs. Functions invoked early when booting up a cpu can't use tracing because mcount requires a valid 'current_thread_info()' and TLB mappings to be setup. The code path of sun4v_register_mondo_queues --> register_one_mondo is one such case. sun4v_register_mondo_queues already has the necessary 'notrace' annotation, but register_one_mondo does not. Normally register_one_mondo is inlined so the bug doesn't trigger, but with some config/compiler combinations, it won't be so we must properly mark it notrace. While we're here, add 'notrace' annoations to prom_printf and prom_halt so that early error handling won't have the same problem. Reported-by: Alexander Beregalov Reported-by: Leif Sawyer Signed-off-by: David S. Miller --- arch/sparc/kernel/irq_64.c | 2 +- arch/sparc/prom/misc_64.c | 2 +- arch/sparc/prom/printf.c | 7 +++---- 3 files changed, 5 insertions(+), 6 deletions(-) (limited to 'arch') diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c index f0ee7905540..8daab33fc17 100644 --- a/arch/sparc/kernel/irq_64.c +++ b/arch/sparc/kernel/irq_64.c @@ -886,7 +886,7 @@ void notrace init_irqwork_curcpu(void) * Therefore you cannot make any OBP calls, not even prom_printf, * from these two routines. */ -static void __cpuinit register_one_mondo(unsigned long paddr, unsigned long type, unsigned long qmask) +static void __cpuinit notrace register_one_mondo(unsigned long paddr, unsigned long type, unsigned long qmask) { unsigned long num_entries = (qmask + 1) / 64; unsigned long status; diff --git a/arch/sparc/prom/misc_64.c b/arch/sparc/prom/misc_64.c index eedffb4fec2..39fc6af21b7 100644 --- a/arch/sparc/prom/misc_64.c +++ b/arch/sparc/prom/misc_64.c @@ -88,7 +88,7 @@ void prom_cmdline(void) /* Drop into the prom, but completely terminate the program. * No chance of continuing. */ -void prom_halt(void) +void notrace prom_halt(void) { #ifdef CONFIG_SUN_LDOMS if (ldom_domaining_enabled) diff --git a/arch/sparc/prom/printf.c b/arch/sparc/prom/printf.c index 660943ee4c2..ca869266b9f 100644 --- a/arch/sparc/prom/printf.c +++ b/arch/sparc/prom/printf.c @@ -14,14 +14,14 @@ */ #include +#include #include #include static char ppbuf[1024]; -void -prom_write(const char *buf, unsigned int n) +void notrace prom_write(const char *buf, unsigned int n) { char ch; @@ -33,8 +33,7 @@ prom_write(const char *buf, unsigned int n) } } -void -prom_printf(const char *fmt, ...) +void notrace prom_printf(const char *fmt, ...) { va_list args; int i; -- cgit v1.2.3-70-g09d2 From 74a01180db4bbfd61304ae0ba1f60af55ffc803d Mon Sep 17 00:00:00 2001 From: Roderick Colenbrander Date: Thu, 3 Sep 2009 09:57:23 -0600 Subject: powerpc: Fix i8259 interrupt driver kernel crash on ML510 This patch fixes a null pointer exception caused by removal of 'ack()' for level interrupts in the Xilinx interrupt driver. A recent change to the xilinx interrupt controller removed the ack hook for level irqs. Signed-off-by: Roderick Colenbrander Signed-off-by: Grant Likely Acked-by: Benjamin Herrenschmidt Signed-off-by: Linus Torvalds --- arch/powerpc/sysdev/xilinx_intc.c | 1 - 1 file changed, 1 deletion(-) (limited to 'arch') diff --git a/arch/powerpc/sysdev/xilinx_intc.c b/arch/powerpc/sysdev/xilinx_intc.c index 3ee1fd37bbf..40edad52077 100644 --- a/arch/powerpc/sysdev/xilinx_intc.c +++ b/arch/powerpc/sysdev/xilinx_intc.c @@ -234,7 +234,6 @@ static void xilinx_i8259_cascade(unsigned int irq, struct irq_desc *desc) generic_handle_irq(cascade_irq); /* Let xilinx_intc end the interrupt */ - desc->chip->ack(irq); desc->chip->unmask(irq); } -- cgit v1.2.3-70-g09d2