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authorDavid S. Miller <davem@davemloft.net>2013-05-04 18:34:13 -0700
committerDavid S. Miller <davem@davemloft.net>2013-05-04 18:34:13 -0700
commit048c9acca90ca7da42b92745445fe008a48add88 (patch)
treee2e551a565a7dcdca0fc398aa659231745e5a901 /arch/powerpc/kernel
parent07df841877195765d958df146f614fc7bdedd5e3 (diff)
parentad348cc5349be4ef4abe08819afbb63386585413 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Merge sparc bug fixes that didn't make it into v3.9 into sparc-next. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r--arch/powerpc/kernel/asm-offsets.c3
-rw-r--r--arch/powerpc/kernel/cpu_setup_fsl_booke.S16
-rw-r--r--arch/powerpc/kernel/cpu_setup_power.S31
-rw-r--r--arch/powerpc/kernel/cputable.c9
-rw-r--r--arch/powerpc/kernel/crash_dump.c5
-rw-r--r--arch/powerpc/kernel/dbell.c2
-rw-r--r--arch/powerpc/kernel/entry_64.S24
-rw-r--r--arch/powerpc/kernel/epapr_hcalls.S2
-rw-r--r--arch/powerpc/kernel/epapr_paravirt.c6
-rw-r--r--arch/powerpc/kernel/exceptions-64e.S47
-rw-r--r--arch/powerpc/kernel/exceptions-64s.S166
-rw-r--r--arch/powerpc/kernel/fadump.c5
-rw-r--r--arch/powerpc/kernel/head_44x.S2
-rw-r--r--arch/powerpc/kernel/head_64.S1
-rw-r--r--arch/powerpc/kernel/head_booke.h21
-rw-r--r--arch/powerpc/kernel/head_fsl_booke.S2
-rw-r--r--arch/powerpc/kernel/idle.c89
-rw-r--r--arch/powerpc/kernel/idle_book3e.S32
-rw-r--r--arch/powerpc/kernel/iommu.c2
-rw-r--r--arch/powerpc/kernel/irq.c12
-rw-r--r--arch/powerpc/kernel/kgdb.c2
-rw-r--r--arch/powerpc/kernel/kvm.c7
-rw-r--r--arch/powerpc/kernel/lparcfg.c12
-rw-r--r--arch/powerpc/kernel/nvram_64.c3
-rw-r--r--arch/powerpc/kernel/pci-common.c56
-rw-r--r--arch/powerpc/kernel/proc_powerpc.c21
-rw-r--r--arch/powerpc/kernel/process.c24
-rw-r--r--arch/powerpc/kernel/prom_init.c98
-rw-r--r--arch/powerpc/kernel/ptrace.c31
-rw-r--r--arch/powerpc/kernel/ptrace32.c15
-rw-r--r--arch/powerpc/kernel/rtas_flash.c497
-rw-r--r--arch/powerpc/kernel/rtas_pci.c4
-rw-r--r--arch/powerpc/kernel/rtasd.c49
-rw-r--r--arch/powerpc/kernel/setup-common.c6
-rw-r--r--arch/powerpc/kernel/setup_64.c4
-rw-r--r--arch/powerpc/kernel/signal_32.c2
-rw-r--r--arch/powerpc/kernel/signal_64.c2
-rw-r--r--arch/powerpc/kernel/smp.c2
-rw-r--r--arch/powerpc/kernel/sys_ppc32.c109
-rw-r--r--arch/powerpc/kernel/time.c4
-rw-r--r--arch/powerpc/kernel/tm.S2
-rw-r--r--arch/powerpc/kernel/udbg.c6
-rw-r--r--arch/powerpc/kernel/uprobes.c29
-rw-r--r--arch/powerpc/kernel/vdso.c4
-rw-r--r--arch/powerpc/kernel/vdso32/gettimeofday.S26
-rw-r--r--arch/powerpc/kernel/vdso32/vdso32.lds.S1
-rw-r--r--arch/powerpc/kernel/vdso64/gettimeofday.S26
-rw-r--r--arch/powerpc/kernel/vdso64/vdso64.lds.S1
48 files changed, 803 insertions, 717 deletions
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index b6c17ec9b16..172233eab79 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -124,6 +124,9 @@ int main(void)
#ifdef CONFIG_PPC_BOOK3S_64
DEFINE(THREAD_TAR, offsetof(struct thread_struct, tar));
+ DEFINE(THREAD_BESCR, offsetof(struct thread_struct, bescr));
+ DEFINE(THREAD_EBBHR, offsetof(struct thread_struct, ebbhr));
+ DEFINE(THREAD_EBBRR, offsetof(struct thread_struct, ebbrr));
#endif
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
DEFINE(PACATMSCRATCH, offsetof(struct paca_struct, tm_scratch));
diff --git a/arch/powerpc/kernel/cpu_setup_fsl_booke.S b/arch/powerpc/kernel/cpu_setup_fsl_booke.S
index dcd881937f7..0b9af015bed 100644
--- a/arch/powerpc/kernel/cpu_setup_fsl_booke.S
+++ b/arch/powerpc/kernel/cpu_setup_fsl_booke.S
@@ -53,6 +53,15 @@ _GLOBAL(__e500_dcache_setup)
isync
blr
+_GLOBAL(__setup_cpu_e6500)
+ mflr r6
+#ifdef CONFIG_PPC64
+ bl .setup_altivec_ivors
+#endif
+ bl __setup_cpu_e5500
+ mtlr r6
+ blr
+
#ifdef CONFIG_PPC32
_GLOBAL(__setup_cpu_e200)
/* enable dedicated debug exception handling resources (Debug APU) */
@@ -107,6 +116,13 @@ _GLOBAL(__setup_cpu_e5500)
#endif
#ifdef CONFIG_PPC_BOOK3E_64
+_GLOBAL(__restore_cpu_e6500)
+ mflr r5
+ bl .setup_altivec_ivors
+ bl __restore_cpu_e5500
+ mtlr r5
+ blr
+
_GLOBAL(__restore_cpu_e5500)
mflr r4
bl __e500_icache_setup
diff --git a/arch/powerpc/kernel/cpu_setup_power.S b/arch/powerpc/kernel/cpu_setup_power.S
index ea847abb0d0..a283b6442b2 100644
--- a/arch/powerpc/kernel/cpu_setup_power.S
+++ b/arch/powerpc/kernel/cpu_setup_power.S
@@ -49,6 +49,7 @@ _GLOBAL(__restore_cpu_power7)
_GLOBAL(__setup_cpu_power8)
mflr r11
bl __init_FSCR
+ bl __init_PMU
bl __init_hvmode_206
mtlr r11
beqlr
@@ -57,22 +58,28 @@ _GLOBAL(__setup_cpu_power8)
mfspr r3,SPRN_LPCR
oris r3, r3, LPCR_AIL_3@h
bl __init_LPCR
+ bl __init_HFSCR
bl __init_TLB
+ bl __init_PMU_HV
mtlr r11
blr
_GLOBAL(__restore_cpu_power8)
mflr r11
bl __init_FSCR
+ bl __init_PMU
mfmsr r3
rldicl. r0,r3,4,63
+ mtlr r11
beqlr
li r0,0
mtspr SPRN_LPID,r0
mfspr r3,SPRN_LPCR
oris r3, r3, LPCR_AIL_3@h
bl __init_LPCR
+ bl __init_HFSCR
bl __init_TLB
+ bl __init_PMU_HV
mtlr r11
blr
@@ -116,10 +123,17 @@ __init_LPCR:
__init_FSCR:
mfspr r3,SPRN_FSCR
- ori r3,r3,FSCR_TAR|FSCR_DSCR
+ ori r3,r3,FSCR_TAR|FSCR_DSCR|FSCR_EBB
mtspr SPRN_FSCR,r3
blr
+__init_HFSCR:
+ mfspr r3,SPRN_HFSCR
+ ori r3,r3,HFSCR_TAR|HFSCR_TM|HFSCR_BHRB|HFSCR_PM|\
+ HFSCR_DSCR|HFSCR_VECVSX|HFSCR_FP|HFSCR_EBB
+ mtspr SPRN_HFSCR,r3
+ blr
+
__init_TLB:
/* Clear the TLB */
li r6,128
@@ -131,3 +145,18 @@ __init_TLB:
bdnz 2b
ptesync
1: blr
+
+__init_PMU_HV:
+ li r5,0
+ mtspr SPRN_MMCRC,r5
+ mtspr SPRN_MMCRH,r5
+ blr
+
+__init_PMU:
+ li r5,0
+ mtspr SPRN_MMCRS,r5
+ mtspr SPRN_MMCRA,r5
+ mtspr SPRN_MMCR0,r5
+ mtspr SPRN_MMCR1,r5
+ mtspr SPRN_MMCR2,r5
+ blr
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 19599ef352b..ae9f433daab 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -74,7 +74,9 @@ extern void __restore_cpu_a2(void);
#endif /* CONFIG_PPC64 */
#if defined(CONFIG_E500)
extern void __setup_cpu_e5500(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_e6500(unsigned long offset, struct cpu_spec* spec);
extern void __restore_cpu_e5500(void);
+extern void __restore_cpu_e6500(void);
#endif /* CONFIG_E500 */
/* This table only contains "desktop" CPUs, it need to be filled with embedded
@@ -2065,7 +2067,8 @@ static struct cpu_spec __initdata cpu_specs[] = {
.pvr_value = 0x80400000,
.cpu_name = "e6500",
.cpu_features = CPU_FTRS_E6500,
- .cpu_user_features = COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU,
+ .cpu_user_features = COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU |
+ PPC_FEATURE_HAS_ALTIVEC_COMP,
.mmu_features = MMU_FTR_TYPE_FSL_E | MMU_FTR_BIG_PHYS |
MMU_FTR_USE_TLBILX,
.icache_bsize = 64,
@@ -2073,9 +2076,9 @@ static struct cpu_spec __initdata cpu_specs[] = {
.num_pmcs = 4,
.oprofile_cpu_type = "ppc/e6500",
.oprofile_type = PPC_OPROFILE_FSL_EMB,
- .cpu_setup = __setup_cpu_e5500,
+ .cpu_setup = __setup_cpu_e6500,
#ifndef CONFIG_PPC32
- .cpu_restore = __restore_cpu_e5500,
+ .cpu_restore = __restore_cpu_e6500,
#endif
.machine_check = machine_check_e500mc,
.platform = "ppce6500",
diff --git a/arch/powerpc/kernel/crash_dump.c b/arch/powerpc/kernel/crash_dump.c
index b3ba5163eae..9ec3fe174cb 100644
--- a/arch/powerpc/kernel/crash_dump.c
+++ b/arch/powerpc/kernel/crash_dump.c
@@ -150,10 +150,7 @@ void crash_free_reserved_phys_range(unsigned long begin, unsigned long end)
if (addr <= rtas_end && ((addr + PAGE_SIZE) > rtas_start))
continue;
- ClearPageReserved(pfn_to_page(addr >> PAGE_SHIFT));
- init_page_count(pfn_to_page(addr >> PAGE_SHIFT));
- free_page((unsigned long)__va(addr));
- totalram_pages++;
+ free_reserved_page(pfn_to_page(addr >> PAGE_SHIFT));
}
}
#endif
diff --git a/arch/powerpc/kernel/dbell.c b/arch/powerpc/kernel/dbell.c
index 9ebbc24bb23..d55c76c571f 100644
--- a/arch/powerpc/kernel/dbell.c
+++ b/arch/powerpc/kernel/dbell.c
@@ -41,6 +41,8 @@ void doorbell_exception(struct pt_regs *regs)
may_hard_irq_enable();
+ __get_cpu_var(irq_stat).doorbell_irqs++;
+
smp_ipi_demux();
irq_exit();
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 256c5bf0adb..3fe5259e2fe 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -304,7 +304,7 @@ syscall_exit_work:
subi r12,r12,TI_FLAGS
4: /* Anything else left to do? */
- SET_DEFAULT_THREAD_PPR(r3, r9) /* Set thread.ppr = 3 */
+ SET_DEFAULT_THREAD_PPR(r3, r10) /* Set thread.ppr = 3 */
andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
beq .ret_from_except_lite
@@ -458,7 +458,15 @@ BEGIN_FTR_SECTION
*/
mfspr r0,SPRN_TAR
std r0,THREAD_TAR(r3)
-END_FTR_SECTION_IFSET(CPU_FTR_BCTAR)
+
+ /* Event based branch registers */
+ mfspr r0, SPRN_BESCR
+ std r0, THREAD_BESCR(r3)
+ mfspr r0, SPRN_EBBHR
+ std r0, THREAD_EBBHR(r3)
+ mfspr r0, SPRN_EBBRR
+ std r0, THREAD_EBBRR(r3)
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
#endif
#ifdef CONFIG_SMP
@@ -545,9 +553,17 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT)
#ifdef CONFIG_PPC_BOOK3S_64
BEGIN_FTR_SECTION
+ /* Event based branch registers */
+ ld r0, THREAD_BESCR(r4)
+ mtspr SPRN_BESCR, r0
+ ld r0, THREAD_EBBHR(r4)
+ mtspr SPRN_EBBHR, r0
+ ld r0, THREAD_EBBRR(r4)
+ mtspr SPRN_EBBRR, r0
+
ld r0,THREAD_TAR(r4)
mtspr SPRN_TAR,r0
-END_FTR_SECTION_IFSET(CPU_FTR_BCTAR)
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
#endif
#ifdef CONFIG_ALTIVEC
@@ -657,7 +673,7 @@ resume_kernel:
/* Clear _TIF_EMULATE_STACK_STORE flag */
lis r11,_TIF_EMULATE_STACK_STORE@h
addi r5,r9,TI_FLAGS
- ldarx r4,0,r5
+0: ldarx r4,0,r5
andc r4,r4,r11
stdcx. r4,0,r5
bne- 0b
diff --git a/arch/powerpc/kernel/epapr_hcalls.S b/arch/powerpc/kernel/epapr_hcalls.S
index 62c0dc23782..9f1ebf7338f 100644
--- a/arch/powerpc/kernel/epapr_hcalls.S
+++ b/arch/powerpc/kernel/epapr_hcalls.S
@@ -17,6 +17,7 @@
#include <asm/asm-compat.h>
#include <asm/asm-offsets.h>
+#ifndef CONFIG_PPC64
/* epapr_ev_idle() was derived from e500_idle() */
_GLOBAL(epapr_ev_idle)
CURRENT_THREAD_INFO(r3, r1)
@@ -42,6 +43,7 @@ epapr_ev_idle_start:
* _TLF_NAPPING.
*/
b idle_loop
+#endif
/* Hypercall entry point. Will be patched with device tree instructions. */
.global epapr_hypercall_start
diff --git a/arch/powerpc/kernel/epapr_paravirt.c b/arch/powerpc/kernel/epapr_paravirt.c
index f3eab8594d9..d44a571e45a 100644
--- a/arch/powerpc/kernel/epapr_paravirt.c
+++ b/arch/powerpc/kernel/epapr_paravirt.c
@@ -23,8 +23,10 @@
#include <asm/code-patching.h>
#include <asm/machdep.h>
+#if !defined(CONFIG_64BIT) || defined(CONFIG_PPC_BOOK3E_64)
extern void epapr_ev_idle(void);
extern u32 epapr_ev_idle_start[];
+#endif
bool epapr_paravirt_enabled;
@@ -47,11 +49,15 @@ static int __init epapr_paravirt_init(void)
for (i = 0; i < (len / 4); i++) {
patch_instruction(epapr_hypercall_start + i, insts[i]);
+#if !defined(CONFIG_64BIT) || defined(CONFIG_PPC_BOOK3E_64)
patch_instruction(epapr_ev_idle_start + i, insts[i]);
+#endif
}
+#if !defined(CONFIG_64BIT) || defined(CONFIG_PPC_BOOK3E_64)
if (of_get_property(hyper_node, "has-idle", NULL))
ppc_md.power_save = epapr_ev_idle;
+#endif
epapr_paravirt_enabled = true;
diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
index ae54553eacd..42a756eec9f 100644
--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S
@@ -299,6 +299,8 @@ interrupt_base_book3e: /* fake trap */
EXCEPTION_STUB(0x1a0, watchdog) /* 0x09f0 */
EXCEPTION_STUB(0x1c0, data_tlb_miss)
EXCEPTION_STUB(0x1e0, instruction_tlb_miss)
+ EXCEPTION_STUB(0x200, altivec_unavailable) /* 0x0f20 */
+ EXCEPTION_STUB(0x220, altivec_assist) /* 0x1700 */
EXCEPTION_STUB(0x260, perfmon)
EXCEPTION_STUB(0x280, doorbell)
EXCEPTION_STUB(0x2a0, doorbell_crit)
@@ -395,6 +397,45 @@ interrupt_end_book3e:
bl .kernel_fp_unavailable_exception
b .ret_from_except
+/* Altivec Unavailable Interrupt */
+ START_EXCEPTION(altivec_unavailable);
+ NORMAL_EXCEPTION_PROLOG(0x200, BOOKE_INTERRUPT_ALTIVEC_UNAVAIL,
+ PROLOG_ADDITION_NONE)
+ /* we can probably do a shorter exception entry for that one... */
+ EXCEPTION_COMMON(0x200, PACA_EXGEN, INTS_KEEP)
+#ifdef CONFIG_ALTIVEC
+BEGIN_FTR_SECTION
+ ld r12,_MSR(r1)
+ andi. r0,r12,MSR_PR;
+ beq- 1f
+ bl .load_up_altivec
+ b fast_exception_return
+1:
+END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
+#endif
+ INTS_DISABLE
+ bl .save_nvgprs
+ addi r3,r1,STACK_FRAME_OVERHEAD
+ bl .altivec_unavailable_exception
+ b .ret_from_except
+
+/* AltiVec Assist */
+ START_EXCEPTION(altivec_assist);
+ NORMAL_EXCEPTION_PROLOG(0x220, BOOKE_INTERRUPT_ALTIVEC_ASSIST,
+ PROLOG_ADDITION_NONE)
+ EXCEPTION_COMMON(0x220, PACA_EXGEN, INTS_DISABLE)
+ bl .save_nvgprs
+ addi r3,r1,STACK_FRAME_OVERHEAD
+#ifdef CONFIG_ALTIVEC
+BEGIN_FTR_SECTION
+ bl .altivec_assist_exception
+END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
+#else
+ bl .unknown_exception
+#endif
+ b .ret_from_except
+
+
/* Decrementer Interrupt */
MASKABLE_EXCEPTION(0x900, BOOKE_INTERRUPT_DECREMENTER,
decrementer, .timer_interrupt, ACK_DEC)
@@ -807,6 +848,7 @@ fast_exception_return:
BAD_STACK_TRAMPOLINE(0x000)
BAD_STACK_TRAMPOLINE(0x100)
BAD_STACK_TRAMPOLINE(0x200)
+BAD_STACK_TRAMPOLINE(0x220)
BAD_STACK_TRAMPOLINE(0x260)
BAD_STACK_TRAMPOLINE(0x280)
BAD_STACK_TRAMPOLINE(0x2a0)
@@ -1350,6 +1392,11 @@ _GLOBAL(__setup_base_ivors)
blr
+_GLOBAL(setup_altivec_ivors)
+ SET_IVOR(32, 0x200) /* AltiVec Unavailable */
+ SET_IVOR(33, 0x220) /* AltiVec Assist */
+ blr
+
_GLOBAL(setup_perfmon_ivor)
SET_IVOR(35, 0x260) /* Performance Monitor */
blr
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 200afa5bcfb..e6eba1bf61a 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -235,6 +235,7 @@ instruction_access_slb_pSeries:
.globl hardware_interrupt_hv;
hardware_interrupt_pSeries:
hardware_interrupt_hv:
+ HMT_MEDIUM_PPR_DISCARD
BEGIN_FTR_SECTION
_MASKABLE_EXCEPTION_PSERIES(0x502, hardware_interrupt,
EXC_HV, SOFTEN_TEST_HV)
@@ -254,7 +255,11 @@ hardware_interrupt_hv:
STD_EXCEPTION_PSERIES(0x800, 0x800, fp_unavailable)
KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0x800)
- MASKABLE_EXCEPTION_PSERIES(0x900, 0x900, decrementer)
+ . = 0x900
+ .globl decrementer_pSeries
+decrementer_pSeries:
+ _MASKABLE_EXCEPTION_PSERIES(0x900, decrementer, EXC_STD, SOFTEN_TEST_PR)
+
STD_EXCEPTION_HV(0x980, 0x982, hdecrementer)
MASKABLE_EXCEPTION_PSERIES(0xa00, 0xa00, doorbell_super)
@@ -688,9 +693,18 @@ slb_miss_user_pseries:
.align 7
.globl machine_check_common
machine_check_common:
+
+ mfspr r10,SPRN_DAR
+ std r10,PACA_EXGEN+EX_DAR(r13)
+ mfspr r10,SPRN_DSISR
+ stw r10,PACA_EXGEN+EX_DSISR(r13)
EXCEPTION_PROLOG_COMMON(0x200, PACA_EXMC)
FINISH_NAP
DISABLE_INTS
+ ld r3,PACA_EXGEN+EX_DAR(r13)
+ lwz r4,PACA_EXGEN+EX_DSISR(r13)
+ std r3,_DAR(r1)
+ std r4,_DSISR(r1)
bl .save_nvgprs
addi r3,r1,STACK_FRAME_OVERHEAD
bl .machine_check_exception
@@ -797,7 +811,7 @@ hardware_interrupt_relon_hv:
_MASKABLE_RELON_EXCEPTION_PSERIES(0x502, hardware_interrupt, EXC_HV, SOFTEN_TEST_HV)
FTR_SECTION_ELSE
_MASKABLE_RELON_EXCEPTION_PSERIES(0x500, hardware_interrupt, EXC_STD, SOFTEN_TEST_PR)
- ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_206)
+ ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE)
STD_RELON_EXCEPTION_PSERIES(0x4600, 0x600, alignment)
STD_RELON_EXCEPTION_PSERIES(0x4700, 0x700, program_check)
STD_RELON_EXCEPTION_PSERIES(0x4800, 0x800, fp_unavailable)
@@ -870,10 +884,6 @@ tm_unavailable_relon_pSeries_1:
. = 0x5500
b denorm_exception_hv
#endif
-#ifdef CONFIG_HVC_SCOM
- STD_RELON_EXCEPTION_HV(0x5600, 0x1600, maintence_interrupt)
- KVM_HANDLER_SKIP(PACA_EXGEN, EXC_HV, 0x1600)
-#endif /* CONFIG_HVC_SCOM */
STD_RELON_EXCEPTION_PSERIES(0x5700, 0x1700, altivec_assist)
/* Other future vectors */
@@ -1066,78 +1076,6 @@ unrecov_user_slb:
#endif /* __DISABLED__ */
-/*
- * r13 points to the PACA, r9 contains the saved CR,
- * r12 contain the saved SRR1, SRR0 is still ready for return
- * r3 has the faulting address
- * r9 - r13 are saved in paca->exslb.
- * r3 is saved in paca->slb_r3
- * We assume we aren't going to take any exceptions during this procedure.
- */
-_GLOBAL(slb_miss_realmode)
- mflr r10
-#ifdef CONFIG_RELOCATABLE
- mtctr r11
-#endif
-
- stw r9,PACA_EXSLB+EX_CCR(r13) /* save CR in exc. frame */
- std r10,PACA_EXSLB+EX_LR(r13) /* save LR */
-
- bl .slb_allocate_realmode
-
- /* All done -- return from exception. */
-
- ld r10,PACA_EXSLB+EX_LR(r13)
- ld r3,PACA_EXSLB+EX_R3(r13)
- lwz r9,PACA_EXSLB+EX_CCR(r13) /* get saved CR */
-
- mtlr r10
-
- andi. r10,r12,MSR_RI /* check for unrecoverable exception */
- beq- 2f
-
-.machine push
-.machine "power4"
- mtcrf 0x80,r9
- mtcrf 0x01,r9 /* slb_allocate uses cr0 and cr7 */
-.machine pop
-
- RESTORE_PPR_PACA(PACA_EXSLB, r9)
- ld r9,PACA_EXSLB+EX_R9(r13)
- ld r10,PACA_EXSLB+EX_R10(r13)
- ld r11,PACA_EXSLB+EX_R11(r13)
- ld r12,PACA_EXSLB+EX_R12(r13)
- ld r13,PACA_EXSLB+EX_R13(r13)
- rfid
- b . /* prevent speculative execution */
-
-2: mfspr r11,SPRN_SRR0
- ld r10,PACAKBASE(r13)
- LOAD_HANDLER(r10,unrecov_slb)
- mtspr SPRN_SRR0,r10
- ld r10,PACAKMSR(r13)
- mtspr SPRN_SRR1,r10
- rfid
- b .
-
-unrecov_slb:
- EXCEPTION_PROLOG_COMMON(0x4100, PACA_EXSLB)
- DISABLE_INTS
- bl .save_nvgprs
-1: addi r3,r1,STACK_FRAME_OVERHEAD
- bl .unrecoverable_exception
- b 1b
-
-
-#ifdef CONFIG_PPC_970_NAP
-power4_fixup_nap:
- andc r9,r9,r10
- std r9,TI_LOCAL_FLAGS(r11)
- ld r10,_LINK(r1) /* make idle task do the */
- std r10,_NIP(r1) /* equivalent of a blr */
- blr
-#endif
-
.align 7
.globl alignment_common
alignment_common:
@@ -1336,6 +1274,78 @@ _GLOBAL(opal_mc_secondary_handler)
/*
+ * r13 points to the PACA, r9 contains the saved CR,
+ * r12 contain the saved SRR1, SRR0 is still ready for return
+ * r3 has the faulting address
+ * r9 - r13 are saved in paca->exslb.
+ * r3 is saved in paca->slb_r3
+ * We assume we aren't going to take any exceptions during this procedure.
+ */
+_GLOBAL(slb_miss_realmode)
+ mflr r10
+#ifdef CONFIG_RELOCATABLE
+ mtctr r11
+#endif
+
+ stw r9,PACA_EXSLB+EX_CCR(r13) /* save CR in exc. frame */
+ std r10,PACA_EXSLB+EX_LR(r13) /* save LR */
+
+ bl .slb_allocate_realmode
+
+ /* All done -- return from exception. */
+
+ ld r10,PACA_EXSLB+EX_LR(r13)
+ ld r3,PACA_EXSLB+EX_R3(r13)
+ lwz r9,PACA_EXSLB+EX_CCR(r13) /* get saved CR */
+
+ mtlr r10
+
+ andi. r10,r12,MSR_RI /* check for unrecoverable exception */
+ beq- 2f
+
+.machine push
+.machine "power4"
+ mtcrf 0x80,r9
+ mtcrf 0x01,r9 /* slb_allocate uses cr0 and cr7 */
+.machine pop
+
+ RESTORE_PPR_PACA(PACA_EXSLB, r9)
+ ld r9,PACA_EXSLB+EX_R9(r13)
+ ld r10,PACA_EXSLB+EX_R10(r13)
+ ld r11,PACA_EXSLB+EX_R11(r13)
+ ld r12,PACA_EXSLB+EX_R12(r13)
+ ld r13,PACA_EXSLB+EX_R13(r13)
+ rfid
+ b . /* prevent speculative execution */
+
+2: mfspr r11,SPRN_SRR0
+ ld r10,PACAKBASE(r13)
+ LOAD_HANDLER(r10,unrecov_slb)
+ mtspr SPRN_SRR0,r10
+ ld r10,PACAKMSR(r13)
+ mtspr SPRN_SRR1,r10
+ rfid
+ b .
+
+unrecov_slb:
+ EXCEPTION_PROLOG_COMMON(0x4100, PACA_EXSLB)
+ DISABLE_INTS
+ bl .save_nvgprs
+1: addi r3,r1,STACK_FRAME_OVERHEAD
+ bl .unrecoverable_exception
+ b 1b
+
+
+#ifdef CONFIG_PPC_970_NAP
+power4_fixup_nap:
+ andc r9,r9,r10
+ std r9,TI_LOCAL_FLAGS(r11)
+ ld r10,_LINK(r1) /* make idle task do the */
+ std r10,_NIP(r1) /* equivalent of a blr */
+ blr
+#endif
+
+/*
* Hash table stuff
*/
.align 7
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index 06c8202a69c..2230fd0ca3e 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -1045,10 +1045,7 @@ static void fadump_release_memory(unsigned long begin, unsigned long end)
if (addr <= ra_end && ((addr + PAGE_SIZE) > ra_start))
continue;
- ClearPageReserved(pfn_to_page(addr >> PAGE_SHIFT));
- init_page_count(pfn_to_page(addr >> PAGE_SHIFT));
- free_page((unsigned long)__va(addr));
- totalram_pages++;
+ free_reserved_page(pfn_to_page(addr >> PAGE_SHIFT));
}
}
diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S
index 7a2e5e421ab..97e2671cde7 100644
--- a/arch/powerpc/kernel/head_44x.S
+++ b/arch/powerpc/kernel/head_44x.S
@@ -769,6 +769,8 @@ finish_tlb_load_47x:
*/
DEBUG_CRIT_EXCEPTION
+interrupt_end:
+
/*
* Global functions
*/
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 0886ae6dd5b..b61363d557b 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -509,6 +509,7 @@ _GLOBAL(copy_and_flush)
sync
addi r5,r5,8
addi r6,r6,8
+ isync
blr
.align 8
diff --git a/arch/powerpc/kernel/head_booke.h b/arch/powerpc/kernel/head_booke.h
index 5f051eeb93a..a620203f7de 100644
--- a/arch/powerpc/kernel/head_booke.h
+++ b/arch/powerpc/kernel/head_booke.h
@@ -199,11 +199,6 @@
.align 5; \
label:
-#define FINISH_EXCEPTION(func) \
- bl transfer_to_handler_full; \
- .long func; \
- .long ret_from_except_full
-
#define EXCEPTION(n, intno, label, hdlr, xfer) \
START_EXCEPTION(label); \
NORMAL_EXCEPTION_PROLOG(intno); \
@@ -286,13 +281,13 @@ label:
andis. r10,r10,(DBSR_IC|DBSR_BT)@h; \
beq+ 2f; \
\
- lis r10,KERNELBASE@h; /* check if exception in vectors */ \
- ori r10,r10,KERNELBASE@l; \
+ lis r10,interrupt_base@h; /* check if exception in vectors */ \
+ ori r10,r10,interrupt_base@l; \
cmplw r12,r10; \
blt+ 2f; /* addr below exception vectors */ \
\
- lis r10,DebugDebug@h; \
- ori r10,r10,DebugDebug@l; \
+ lis r10,interrupt_end@h; \
+ ori r10,r10,interrupt_end@l; \
cmplw r12,r10; \
bgt+ 2f; /* addr above exception vectors */ \
\
@@ -339,13 +334,13 @@ label:
andis. r10,r10,(DBSR_IC|DBSR_BT)@h; \
beq+ 2f; \
\
- lis r10,KERNELBASE@h; /* check if exception in vectors */ \
- ori r10,r10,KERNELBASE@l; \
+ lis r10,interrupt_base@h; /* check if exception in vectors */ \
+ ori r10,r10,interrupt_base@l; \
cmplw r12,r10; \
blt+ 2f; /* addr below exception vectors */ \
\
- lis r10,DebugCrit@h; \
- ori r10,r10,DebugCrit@l; \
+ lis r10,interrupt_end@h; \
+ ori r10,r10,interrupt_end@l; \
cmplw r12,r10; \
bgt+ 2f; /* addr above exception vectors */ \
\
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
index 6f62a737f60..d10a7cacccd 100644
--- a/arch/powerpc/kernel/head_fsl_booke.S
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -605,6 +605,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_EMB_HV)
/* Embedded Hypervisor Privilege */
EXCEPTION(0, HV_PRIV, Ehvpriv, unknown_exception, EXC_XFER_EE)
+interrupt_end:
+
/*
* Local functions
*/
diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c
index ea78761aa16..939ea7ef0dc 100644
--- a/arch/powerpc/kernel/idle.c
+++ b/arch/powerpc/kernel/idle.c
@@ -33,11 +33,6 @@
#include <asm/runlatch.h>
#include <asm/smp.h>
-#ifdef CONFIG_HOTPLUG_CPU
-#define cpu_should_die() cpu_is_offline(smp_processor_id())
-#else
-#define cpu_should_die() 0
-#endif
unsigned long cpuidle_disable = IDLE_NO_OVERRIDE;
EXPORT_SYMBOL(cpuidle_disable);
@@ -50,64 +45,38 @@ static int __init powersave_off(char *arg)
}
__setup("powersave=off", powersave_off);
-/*
- * The body of the idle task.
- */
-void cpu_idle(void)
+#ifdef CONFIG_HOTPLUG_CPU
+void arch_cpu_idle_dead(void)
{
- set_thread_flag(TIF_POLLING_NRFLAG);
- while (1) {
- tick_nohz_idle_enter();
- rcu_idle_enter();
-
- while (!need_resched() && !cpu_should_die()) {
- ppc64_runlatch_off();
-
- if (ppc_md.power_save) {
- clear_thread_flag(TIF_POLLING_NRFLAG);
- /*
- * smp_mb is so clearing of TIF_POLLING_NRFLAG
- * is ordered w.r.t. need_resched() test.
- */
- smp_mb();
- local_irq_disable();
-
- /* Don't trace irqs off for idle */
- stop_critical_timings();
-
- /* check again after disabling irqs */
- if (!need_resched() && !cpu_should_die())
- ppc_md.power_save();
-
- start_critical_timings();
-
- /* Some power_save functions return with
- * interrupts enabled, some don't.
- */
- if (irqs_disabled())
- local_irq_enable();
- set_thread_flag(TIF_POLLING_NRFLAG);
-
- } else {
- /*
- * Go into low thread priority and possibly
- * low power mode.
- */
- HMT_low();
- HMT_very_low();
- }
- }
+ sched_preempt_enable_no_resched();
+ cpu_die();
+}
+#endif
- HMT_medium();
- ppc64_runlatch_on();
- rcu_idle_exit();
- tick_nohz_idle_exit();
- if (cpu_should_die()) {
- sched_preempt_enable_no_resched();
- cpu_die();
- }
- schedule_preempt_disabled();
+void arch_cpu_idle(void)
+{
+ ppc64_runlatch_off();
+
+ if (ppc_md.power_save) {
+ ppc_md.power_save();
+ /*
+ * Some power_save functions return with
+ * interrupts enabled, some don't.
+ */
+ if (irqs_disabled())
+ local_irq_enable();
+ } else {
+ local_irq_enable();
+ /*
+ * Go into low thread priority and possibly
+ * low power mode.
+ */
+ HMT_low();
+ HMT_very_low();
}
+
+ HMT_medium();
+ ppc64_runlatch_on();
}
int powersave_nap;
diff --git a/arch/powerpc/kernel/idle_book3e.S b/arch/powerpc/kernel/idle_book3e.S
index 4c7cb400858..bfb73cc209c 100644
--- a/arch/powerpc/kernel/idle_book3e.S
+++ b/arch/powerpc/kernel/idle_book3e.S
@@ -16,11 +16,13 @@
#include <asm/ppc-opcode.h>
#include <asm/processor.h>
#include <asm/thread_info.h>
+#include <asm/epapr_hcalls.h>
/* 64-bit version only for now */
#ifdef CONFIG_PPC64
-_GLOBAL(book3e_idle)
+.macro BOOK3E_IDLE name loop
+_GLOBAL(\name)
/* Save LR for later */
mflr r0
std r0,16(r1)
@@ -67,7 +69,33 @@ _GLOBAL(book3e_idle)
/* We can now re-enable hard interrupts and go to sleep */
wrteei 1
-1: PPC_WAIT(0)
+ \loop
+
+.endm
+
+.macro BOOK3E_IDLE_LOOP
+1:
+ PPC_WAIT(0)
b 1b
+.endm
+
+/* epapr_ev_idle_start below is patched with the proper hcall
+ opcodes during kernel initialization */
+.macro EPAPR_EV_IDLE_LOOP
+idle_loop:
+ LOAD_REG_IMMEDIATE(r11, EV_HCALL_TOKEN(EV_IDLE))
+
+.global epapr_ev_idle_start
+epapr_ev_idle_start:
+ li r3, -1
+ nop
+ nop
+ nop
+ b idle_loop
+.endm
+
+BOOK3E_IDLE epapr_ev_idle EPAPR_EV_IDLE_LOOP
+
+BOOK3E_IDLE book3e_idle BOOK3E_IDLE_LOOP
#endif /* CONFIG_PPC64 */
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index 31c4fdc6859..c0d0dbddfba 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -102,7 +102,7 @@ static int __init fail_iommu_debugfs(void)
struct dentry *dir = fault_create_debugfs_attr("fail_iommu",
NULL, &fail_iommu);
- return IS_ERR(dir) ? PTR_ERR(dir) : 0;
+ return PTR_RET(dir);
}
late_initcall(fail_iommu_debugfs);
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 4f97fe34552..5cbcf4d5a80 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -374,6 +374,15 @@ int arch_show_interrupts(struct seq_file *p, int prec)
seq_printf(p, "%10u ", per_cpu(irq_stat, j).mce_exceptions);
seq_printf(p, " Machine check exceptions\n");
+#ifdef CONFIG_PPC_DOORBELL
+ if (cpu_has_feature(CPU_FTR_DBELL)) {
+ seq_printf(p, "%*s: ", prec, "DBL");
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", per_cpu(irq_stat, j).doorbell_irqs);
+ seq_printf(p, " Doorbell interrupts\n");
+ }
+#endif
+
return 0;
}
@@ -387,6 +396,9 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
sum += per_cpu(irq_stat, cpu).pmu_irqs;
sum += per_cpu(irq_stat, cpu).mce_exceptions;
sum += per_cpu(irq_stat, cpu).spurious_irqs;
+#ifdef CONFIG_PPC_DOORBELL
+ sum += per_cpu(irq_stat, cpu).doorbell_irqs;
+#endif
return sum;
}
diff --git a/arch/powerpc/kernel/kgdb.c b/arch/powerpc/kernel/kgdb.c
index 5ca82cd4a37..c1eef241017 100644
--- a/arch/powerpc/kernel/kgdb.c
+++ b/arch/powerpc/kernel/kgdb.c
@@ -159,7 +159,7 @@ static int kgdb_singlestep(struct pt_regs *regs)
if (user_mode(regs))
return 0;
- backup_current_thread_info = (struct thread_info *)kmalloc(sizeof(struct thread_info), GFP_KERNEL);
+ backup_current_thread_info = kmalloc(sizeof(struct thread_info), GFP_KERNEL);
/*
* On Book E and perhaps other processors, singlestep is handled on
* the critical exception stack. This causes current_thread_info()
diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c
index a61b133c4f9..6782221d49b 100644
--- a/arch/powerpc/kernel/kvm.c
+++ b/arch/powerpc/kernel/kvm.c
@@ -756,12 +756,7 @@ static __init void kvm_free_tmp(void)
end = (ulong)&kvm_tmp[ARRAY_SIZE(kvm_tmp)] & PAGE_MASK;
/* Free the tmp space we don't need */
- for (; start < end; start += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(start));
- init_page_count(virt_to_page(start));
- free_page(start);
- totalram_pages++;
- }
+ free_reserved_area(start, end, 0, NULL);
}
static int __init kvm_guest_init(void)
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index f5725bce9ed..d92f3871e9c 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -41,8 +41,6 @@
/* #define LPARCFG_DEBUG */
-static struct proc_dir_entry *proc_ppc64_lparcfg;
-
/*
* Track sum of all purrs across all processors. This is used to further
* calculate usage values by different applications
@@ -301,6 +299,7 @@ static void parse_system_parameter_string(struct seq_file *m)
__pa(rtas_data_buf),
RTAS_DATA_BUF_SIZE);
memcpy(local_buffer, rtas_data_buf, SPLPAR_MAXLENGTH);
+ local_buffer[SPLPAR_MAXLENGTH - 1] = '\0';
spin_unlock(&rtas_data_buf_lock);
if (call_status != 0) {
@@ -688,27 +687,22 @@ static const struct file_operations lparcfg_fops = {
static int __init lparcfg_init(void)
{
- struct proc_dir_entry *ent;
umode_t mode = S_IRUSR | S_IRGRP | S_IROTH;
/* Allow writing if we have FW_FEATURE_SPLPAR */
if (firmware_has_feature(FW_FEATURE_SPLPAR))
mode |= S_IWUSR;
- ent = proc_create("powerpc/lparcfg", mode, NULL, &lparcfg_fops);
- if (!ent) {
+ if (!proc_create("powerpc/lparcfg", mode, NULL, &lparcfg_fops)) {
printk(KERN_ERR "Failed to create powerpc/lparcfg\n");
return -EIO;
}
-
- proc_ppc64_lparcfg = ent;
return 0;
}
static void __exit lparcfg_cleanup(void)
{
- if (proc_ppc64_lparcfg)
- remove_proc_entry("lparcfg", proc_ppc64_lparcfg->parent);
+ remove_proc_subtree("powerpc/lparcfg", NULL);
}
module_init(lparcfg_init);
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index bec1e930ed7..48fbc2b97e9 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -511,8 +511,7 @@ int __init nvram_scan_partitions(void)
"detected: 0-length partition\n");
goto out;
}
- tmp_part = (struct nvram_partition *)
- kmalloc(sizeof(struct nvram_partition), GFP_KERNEL);
+ tmp_part = kmalloc(sizeof(struct nvram_partition), GFP_KERNEL);
err = -ENOMEM;
if (!tmp_part) {
printk(KERN_ERR "nvram_scan_partitions: kmalloc failed\n");
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index fa12ae42d98..f325dc92340 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -30,6 +30,7 @@
#include <linux/irq.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
+#include <linux/vgaarb.h>
#include <asm/processor.h>
#include <asm/io.h>
@@ -1023,6 +1024,27 @@ void pcibios_setup_bus_self(struct pci_bus *bus)
ppc_md.pci_dma_bus_setup(bus);
}
+void pcibios_setup_device(struct pci_dev *dev)
+{
+ /* Fixup NUMA node as it may not be setup yet by the generic
+ * code and is needed by the DMA init
+ */
+ set_dev_node(&dev->dev, pcibus_to_node(dev->bus));
+
+ /* Hook up default DMA ops */
+ set_dma_ops(&dev->dev, pci_dma_ops);
+ set_dma_offset(&dev->dev, PCI_DRAM_OFFSET);
+
+ /* Additional platform DMA/iommu setup */
+ if (ppc_md.pci_dma_dev_setup)
+ ppc_md.pci_dma_dev_setup(dev);
+
+ /* Read default IRQs and fixup if necessary */
+ pci_read_irq_line(dev);
+ if (ppc_md.pci_irq_fixup)
+ ppc_md.pci_irq_fixup(dev);
+}
+
void pcibios_setup_bus_devices(struct pci_bus *bus)
{
struct pci_dev *dev;
@@ -1037,23 +1059,7 @@ void pcibios_setup_bus_devices(struct pci_bus *bus)
if (dev->is_added)
continue;
- /* Fixup NUMA node as it may not be setup yet by the generic
- * code and is needed by the DMA init
- */
- set_dev_node(&dev->dev, pcibus_to_node(dev->bus));
-
- /* Hook up default DMA ops */
- set_dma_ops(&dev->dev, pci_dma_ops);
- set_dma_offset(&dev->dev, PCI_DRAM_OFFSET);
-
- /* Additional platform DMA/iommu setup */
- if (ppc_md.pci_dma_dev_setup)
- ppc_md.pci_dma_dev_setup(dev);
-
- /* Read default IRQs and fixup if necessary */
- pci_read_irq_line(dev);
- if (ppc_md.pci_irq_fixup)
- ppc_md.pci_irq_fixup(dev);
+ pcibios_setup_device(dev);
}
}
@@ -1494,6 +1500,10 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
if (ppc_md.pcibios_enable_device_hook(dev))
return -EINVAL;
+ /* avoid pcie irq fix up impact on cardbus */
+ if (dev->hdr_type != PCI_HEADER_TYPE_CARDBUS)
+ pcibios_setup_device(dev);
+
return pci_enable_resources(dev, mask);
}
@@ -1725,3 +1735,15 @@ static void fixup_hide_host_resource_fsl(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MOTOROLA, PCI_ANY_ID, fixup_hide_host_resource_fsl);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_FREESCALE, PCI_ANY_ID, fixup_hide_host_resource_fsl);
+
+static void fixup_vga(struct pci_dev *pdev)
+{
+ u16 cmd;
+
+ pci_read_config_word(pdev, PCI_COMMAND, &cmd);
+ if ((cmd & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) || !vga_default_device())
+ vga_set_default_device(pdev);
+
+}
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID,
+ PCI_CLASS_DISPLAY_VGA, 8, fixup_vga);
diff --git a/arch/powerpc/kernel/proc_powerpc.c b/arch/powerpc/kernel/proc_powerpc.c
index f19d0bdc324..feb8580fdc8 100644
--- a/arch/powerpc/kernel/proc_powerpc.c
+++ b/arch/powerpc/kernel/proc_powerpc.c
@@ -32,8 +32,6 @@
static loff_t page_map_seek( struct file *file, loff_t off, int whence)
{
loff_t new;
- struct proc_dir_entry *dp = PDE(file_inode(file));
-
switch(whence) {
case 0:
new = off;
@@ -42,12 +40,12 @@ static loff_t page_map_seek( struct file *file, loff_t off, int whence)
new = file->f_pos + off;
break;
case 2:
- new = dp->size + off;
+ new = PAGE_SIZE + off;
break;
default:
return -EINVAL;
}
- if ( new < 0 || new > dp->size )
+ if ( new < 0 || new > PAGE_SIZE )
return -EINVAL;
return (file->f_pos = new);
}
@@ -55,19 +53,18 @@ static loff_t page_map_seek( struct file *file, loff_t off, int whence)
static ssize_t page_map_read( struct file *file, char __user *buf, size_t nbytes,
loff_t *ppos)
{
- struct proc_dir_entry *dp = PDE(file_inode(file));
- return simple_read_from_buffer(buf, nbytes, ppos, dp->data, dp->size);
+ return simple_read_from_buffer(buf, nbytes, ppos,
+ PDE_DATA(file_inode(file)), PAGE_SIZE);
}
static int page_map_mmap( struct file *file, struct vm_area_struct *vma )
{
- struct proc_dir_entry *dp = PDE(file_inode(file));
-
- if ((vma->vm_end - vma->vm_start) > dp->size)
+ if ((vma->vm_end - vma->vm_start) > PAGE_SIZE)
return -EINVAL;
- remap_pfn_range(vma, vma->vm_start, __pa(dp->data) >> PAGE_SHIFT,
- dp->size, vma->vm_page_prot);
+ remap_pfn_range(vma, vma->vm_start,
+ __pa(PDE_DATA(file_inode(file))) >> PAGE_SHIFT,
+ PAGE_SIZE, vma->vm_page_prot);
return 0;
}
@@ -86,7 +83,7 @@ static int __init proc_ppc64_init(void)
&page_map_fops, vdso_data);
if (!pde)
return 1;
- pde->size = PAGE_SIZE;
+ proc_set_size(pde, PAGE_SIZE);
return 0;
}
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 59dd545fdde..ceb4e7b62cf 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -555,10 +555,12 @@ static inline void tm_recheckpoint_new_task(struct task_struct *new)
new->thread.regs->msr |=
(MSR_FP | new->thread.fpexc_mode);
}
+#ifdef CONFIG_ALTIVEC
if (msr & MSR_VEC) {
do_load_up_transact_altivec(&new->thread);
new->thread.regs->msr |= MSR_VEC;
}
+#endif
/* We may as well turn on VSX too since all the state is restored now */
if (msr & MSR_VSX)
new->thread.regs->msr |= MSR_VSX;
@@ -829,6 +831,8 @@ void show_regs(struct pt_regs * regs)
{
int i, trap;
+ show_regs_print_info(KERN_DEFAULT);
+
printk("NIP: "REG" LR: "REG" CTR: "REG"\n",
regs->nip, regs->link, regs->ctr);
printk("REGS: %p TRAP: %04lx %s (%s)\n",
@@ -848,12 +852,6 @@ void show_regs(struct pt_regs * regs)
#else
printk("DAR: "REG", DSISR: %08lx\n", regs->dar, regs->dsisr);
#endif
- printk("TASK = %p[%d] '%s' THREAD: %p",
- current, task_pid_nr(current), current->comm, task_thread_info(current));
-
-#ifdef CONFIG_SMP
- printk(" CPU: %d", raw_smp_processor_id());
-#endif /* CONFIG_SMP */
for (i = 0; i < 32; i++) {
if ((i % REGS_PER_LINE) == 0)
@@ -910,10 +908,6 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
flush_altivec_to_thread(src);
flush_vsx_to_thread(src);
flush_spe_to_thread(src);
-#ifdef CONFIG_HAVE_HW_BREAKPOINT
- flush_ptrace_hw_breakpoint(src);
-#endif /* CONFIG_HAVE_HW_BREAKPOINT */
-
*dst = *src;
return 0;
}
@@ -984,6 +978,10 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
p->thread.ksp_limit = (unsigned long)task_stack_page(p) +
_ALIGN_UP(sizeof(struct thread_info), 16);
+#ifdef CONFIG_HAVE_HW_BREAKPOINT
+ p->thread.ptrace_bps[0] = NULL;
+#endif
+
#ifdef CONFIG_PPC_STD_MMU_64
if (mmu_has_feature(MMU_FTR_SLB)) {
unsigned long sp_vsid;
@@ -1360,12 +1358,6 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
} while (count++ < kstack_depth_to_print);
}
-void dump_stack(void)
-{
- show_stack(current, NULL);
-}
-EXPORT_SYMBOL(dump_stack);
-
#ifdef CONFIG_PPC64
/* Called with hard IRQs off */
void __ppc64_runlatch_on(void)
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 13f8d168b3f..5eccda9fd33 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -627,16 +627,11 @@ static void __init early_cmdline_parse(void)
#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV)
/*
- * There are two methods for telling firmware what our capabilities are.
- * Newer machines have an "ibm,client-architecture-support" method on the
- * root node. For older machines, we have to call the "process-elf-header"
- * method in the /packages/elf-loader node, passing it a fake 32-bit
- * ELF header containing a couple of PT_NOTE sections that contain
- * structures that contain various information.
- */
-
-/*
- * New method - extensible architecture description vector.
+ * The architecture vector has an array of PVR mask/value pairs,
+ * followed by # option vectors - 1, followed by the option vectors.
+ *
+ * See prom.h for the definition of the bits specified in the
+ * architecture vector.
*
* Because the description vector contains a mix of byte and word
* values, we declare it as an unsigned char array, and use this
@@ -645,65 +640,7 @@ static void __init early_cmdline_parse(void)
#define W(x) ((x) >> 24) & 0xff, ((x) >> 16) & 0xff, \
((x) >> 8) & 0xff, (x) & 0xff
-/* Option vector bits - generic bits in byte 1 */
-#define OV_IGNORE 0x80 /* ignore this vector */
-#define OV_CESSATION_POLICY 0x40 /* halt if unsupported option present*/
-
-/* Option vector 1: processor architectures supported */
-#define OV1_PPC_2_00 0x80 /* set if we support PowerPC 2.00 */
-#define OV1_PPC_2_01 0x40 /* set if we support PowerPC 2.01 */
-#define OV1_PPC_2_02 0x20 /* set if we support PowerPC 2.02 */
-#define OV1_PPC_2_03 0x10 /* set if we support PowerPC 2.03 */
-#define OV1_PPC_2_04 0x08 /* set if we support PowerPC 2.04 */
-#define OV1_PPC_2_05 0x04 /* set if we support PowerPC 2.05 */
-#define OV1_PPC_2_06 0x02 /* set if we support PowerPC 2.06 */
-#define OV1_PPC_2_07 0x01 /* set if we support PowerPC 2.07 */
-
-/* Option vector 2: Open Firmware options supported */
-#define OV2_REAL_MODE 0x20 /* set if we want OF in real mode */
-
-/* Option vector 3: processor options supported */
-#define OV3_FP 0x80 /* floating point */
-#define OV3_VMX 0x40 /* VMX/Altivec */
-#define OV3_DFP 0x20 /* decimal FP */
-
-/* Option vector 4: IBM PAPR implementation */
-#define OV4_MIN_ENT_CAP 0x01 /* minimum VP entitled capacity */
-
-/* Option vector 5: PAPR/OF options supported */
-#define OV5_LPAR 0x80 /* logical partitioning supported */
-#define OV5_SPLPAR 0x40 /* shared-processor LPAR supported */
-/* ibm,dynamic-reconfiguration-memory property supported */
-#define OV5_DRCONF_MEMORY 0x20
-#define OV5_LARGE_PAGES 0x10 /* large pages supported */
-#define OV5_DONATE_DEDICATE_CPU 0x02 /* donate dedicated CPU support */
-/* PCIe/MSI support. Without MSI full PCIe is not supported */
-#ifdef CONFIG_PCI_MSI
-#define OV5_MSI 0x01 /* PCIe/MSI support */
-#else
-#define OV5_MSI 0x00
-#endif /* CONFIG_PCI_MSI */
-#ifdef CONFIG_PPC_SMLPAR
-#define OV5_CMO 0x80 /* Cooperative Memory Overcommitment */
-#define OV5_XCMO 0x40 /* Page Coalescing */
-#else
-#define OV5_CMO 0x00
-#define OV5_XCMO 0x00
-#endif
-#define OV5_TYPE1_AFFINITY 0x80 /* Type 1 NUMA affinity */
-#define OV5_PFO_HW_RNG 0x80 /* PFO Random Number Generator */
-#define OV5_PFO_HW_842 0x40 /* PFO Compression Accelerator */
-#define OV5_PFO_HW_ENCR 0x20 /* PFO Encryption Accelerator */
-#define OV5_SUB_PROCESSORS 0x01 /* 1,2,or 4 Sub-Processors supported */
-
-/* Option Vector 6: IBM PAPR hints */
-#define OV6_LINUX 0x02 /* Linux is our OS */
-
-/*
- * The architecture vector has an array of PVR mask/value pairs,
- * followed by # option vectors - 1, followed by the option vectors.
- */
-static unsigned char ibm_architecture_vec[] = {
+unsigned char ibm_architecture_vec[] = {
W(0xfffe0000), W(0x003a0000), /* POWER5/POWER5+ */
W(0xffff0000), W(0x003e0000), /* POWER6 */
W(0xffff0000), W(0x003f0000), /* POWER7 */
@@ -747,11 +684,21 @@ static unsigned char ibm_architecture_vec[] = {
/* option vector 5: PAPR/OF options */
19 - 2, /* length */
0, /* don't ignore, don't halt */
- OV5_LPAR | OV5_SPLPAR | OV5_LARGE_PAGES | OV5_DRCONF_MEMORY |
- OV5_DONATE_DEDICATE_CPU | OV5_MSI,
+ OV5_FEAT(OV5_LPAR) | OV5_FEAT(OV5_SPLPAR) | OV5_FEAT(OV5_LARGE_PAGES) |
+ OV5_FEAT(OV5_DRCONF_MEMORY) | OV5_FEAT(OV5_DONATE_DEDICATE_CPU) |
+#ifdef CONFIG_PCI_MSI
+ /* PCIe/MSI support. Without MSI full PCIe is not supported */
+ OV5_FEAT(OV5_MSI),
+#else
0,
- OV5_CMO | OV5_XCMO,
- OV5_TYPE1_AFFINITY,
+#endif
+ 0,
+#ifdef CONFIG_PPC_SMLPAR
+ OV5_FEAT(OV5_CMO) | OV5_FEAT(OV5_XCMO),
+#else
+ 0,
+#endif
+ OV5_FEAT(OV5_TYPE1_AFFINITY) | OV5_FEAT(OV5_PRRN),
0,
0,
0,
@@ -765,8 +712,9 @@ static unsigned char ibm_architecture_vec[] = {
0,
0,
0,
- OV5_PFO_HW_RNG | OV5_PFO_HW_ENCR | OV5_PFO_HW_842,
- OV5_SUB_PROCESSORS,
+ OV5_FEAT(OV5_PFO_HW_RNG) | OV5_FEAT(OV5_PFO_HW_ENCR) |
+ OV5_FEAT(OV5_PFO_HW_842),
+ OV5_FEAT(OV5_SUB_PROCESSORS),
/* option vector 6: IBM PAPR hints */
4 - 2, /* length */
0,
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index f9b30c68ba4..3b14d320e69 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -180,9 +180,10 @@ static int set_user_msr(struct task_struct *task, unsigned long msr)
}
#ifdef CONFIG_PPC64
-static unsigned long get_user_dscr(struct task_struct *task)
+static int get_user_dscr(struct task_struct *task, unsigned long *data)
{
- return task->thread.dscr;
+ *data = task->thread.dscr;
+ return 0;
}
static int set_user_dscr(struct task_struct *task, unsigned long dscr)
@@ -192,7 +193,7 @@ static int set_user_dscr(struct task_struct *task, unsigned long dscr)
return 0;
}
#else
-static unsigned long get_user_dscr(struct task_struct *task)
+static int get_user_dscr(struct task_struct *task, unsigned long *data)
{
return -EIO;
}
@@ -216,19 +217,23 @@ static int set_user_trap(struct task_struct *task, unsigned long trap)
/*
* Get contents of register REGNO in task TASK.
*/
-unsigned long ptrace_get_reg(struct task_struct *task, int regno)
+int ptrace_get_reg(struct task_struct *task, int regno, unsigned long *data)
{
- if (task->thread.regs == NULL)
+ if ((task->thread.regs == NULL) || !data)
return -EIO;
- if (regno == PT_MSR)
- return get_user_msr(task);
+ if (regno == PT_MSR) {
+ *data = get_user_msr(task);
+ return 0;
+ }
if (regno == PT_DSCR)
- return get_user_dscr(task);
+ return get_user_dscr(task, data);
- if (regno < (sizeof(struct pt_regs) / sizeof(unsigned long)))
- return ((unsigned long *)task->thread.regs)[regno];
+ if (regno < (sizeof(struct pt_regs) / sizeof(unsigned long))) {
+ *data = ((unsigned long *)task->thread.regs)[regno];
+ return 0;
+ }
return -EIO;
}
@@ -1560,7 +1565,9 @@ long arch_ptrace(struct task_struct *child, long request,
CHECK_FULL_REGS(child->thread.regs);
if (index < PT_FPR0) {
- tmp = ptrace_get_reg(child, (int) index);
+ ret = ptrace_get_reg(child, (int) index, &tmp);
+ if (ret)
+ break;
} else {
unsigned int fpidx = index - PT_FPR0;
@@ -1637,6 +1644,8 @@ long arch_ptrace(struct task_struct *child, long request,
dbginfo.sizeof_condition = 0;
#ifdef CONFIG_HAVE_HW_BREAKPOINT
dbginfo.features = PPC_DEBUG_FEATURE_DATA_BP_RANGE;
+ if (cpu_has_feature(CPU_FTR_DAWR))
+ dbginfo.features |= PPC_DEBUG_FEATURE_DATA_BP_DAWR;
#else
dbginfo.features = 0;
#endif /* CONFIG_HAVE_HW_BREAKPOINT */
diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c
index c0244e76683..f51599e941c 100644
--- a/arch/powerpc/kernel/ptrace32.c
+++ b/arch/powerpc/kernel/ptrace32.c
@@ -95,7 +95,9 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
CHECK_FULL_REGS(child->thread.regs);
if (index < PT_FPR0) {
- tmp = ptrace_get_reg(child, index);
+ ret = ptrace_get_reg(child, index, &tmp);
+ if (ret)
+ break;
} else {
flush_fp_to_thread(child);
/*
@@ -148,7 +150,11 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
tmp = ((u64 *)child->thread.fpr)
[FPRINDEX_3264(numReg)];
} else { /* register within PT_REGS struct */
- tmp = ptrace_get_reg(child, numReg);
+ unsigned long tmp2;
+ ret = ptrace_get_reg(child, numReg, &tmp2);
+ if (ret)
+ break;
+ tmp = tmp2;
}
reg32bits = ((u32*)&tmp)[part];
ret = put_user(reg32bits, (u32 __user *)data);
@@ -232,7 +238,10 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
break;
CHECK_FULL_REGS(child->thread.regs);
if (numReg < PT_FPR0) {
- unsigned long freg = ptrace_get_reg(child, numReg);
+ unsigned long freg;
+ ret = ptrace_get_reg(child, numReg, &freg);
+ if (ret)
+ break;
if (index % 2)
freg = (freg & ~0xfffffffful) | (data & 0xfffffffful);
else
diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c
index c642f013298..5b302247012 100644
--- a/arch/powerpc/kernel/rtas_flash.c
+++ b/arch/powerpc/kernel/rtas_flash.c
@@ -57,13 +57,31 @@
#define VALIDATE_READY -1001 /* Firmware image ready for validation */
#define VALIDATE_PARAM_ERR -3 /* RTAS Parameter Error */
#define VALIDATE_HW_ERR -1 /* RTAS Hardware Error */
-#define VALIDATE_TMP_UPDATE 0 /* Validate Return Status */
-#define VALIDATE_FLASH_AUTH 1 /* Validate Return Status */
-#define VALIDATE_INVALID_IMG 2 /* Validate Return Status */
-#define VALIDATE_CUR_UNKNOWN 3 /* Validate Return Status */
-#define VALIDATE_TMP_COMMIT_DL 4 /* Validate Return Status */
-#define VALIDATE_TMP_COMMIT 5 /* Validate Return Status */
-#define VALIDATE_TMP_UPDATE_DL 6 /* Validate Return Status */
+
+/* ibm,validate-flash-image update result tokens */
+#define VALIDATE_TMP_UPDATE 0 /* T side will be updated */
+#define VALIDATE_FLASH_AUTH 1 /* Partition does not have authority */
+#define VALIDATE_INVALID_IMG 2 /* Candidate image is not valid */
+#define VALIDATE_CUR_UNKNOWN 3 /* Current fixpack level is unknown */
+/*
+ * Current T side will be committed to P side before being replace with new
+ * image, and the new image is downlevel from current image
+ */
+#define VALIDATE_TMP_COMMIT_DL 4
+/*
+ * Current T side will be committed to P side before being replaced with new
+ * image
+ */
+#define VALIDATE_TMP_COMMIT 5
+/*
+ * T side will be updated with a downlevel image
+ */
+#define VALIDATE_TMP_UPDATE_DL 6
+/*
+ * The candidate image's release date is later than the system's firmware
+ * service entitlement date - service warranty period has expired
+ */
+#define VALIDATE_OUT_OF_WRNTY 7
/* ibm,manage-flash-image operation tokens */
#define RTAS_REJECT_TMP_IMG 0
@@ -102,9 +120,10 @@ static struct kmem_cache *flash_block_cache = NULL;
#define FLASH_BLOCK_LIST_VERSION (1UL)
-/* Local copy of the flash block list.
- * We only allow one open of the flash proc file and create this
- * list as we go. The rtas_firmware_flash_list varable will be
+/*
+ * Local copy of the flash block list.
+ *
+ * The rtas_firmware_flash_list varable will be
* set once the data is fully read.
*
* For convenience as we build the list we use virtual addrs,
@@ -125,23 +144,23 @@ struct rtas_update_flash_t
struct rtas_manage_flash_t
{
int status; /* Returned status */
- unsigned int op; /* Reject or commit image */
};
/* Status int must be first member of struct */
struct rtas_validate_flash_t
{
int status; /* Returned status */
- char buf[VALIDATE_BUF_SIZE]; /* Candidate image buffer */
+ char *buf; /* Candidate image buffer */
unsigned int buf_size; /* Size of image buf */
unsigned int update_results; /* Update results token */
};
-static DEFINE_SPINLOCK(flash_file_open_lock);
-static struct proc_dir_entry *firmware_flash_pde;
-static struct proc_dir_entry *firmware_update_pde;
-static struct proc_dir_entry *validate_pde;
-static struct proc_dir_entry *manage_pde;
+static struct rtas_update_flash_t rtas_update_flash_data;
+static struct rtas_manage_flash_t rtas_manage_flash_data;
+static struct rtas_validate_flash_t rtas_validate_flash_data;
+static DEFINE_MUTEX(rtas_update_flash_mutex);
+static DEFINE_MUTEX(rtas_manage_flash_mutex);
+static DEFINE_MUTEX(rtas_validate_flash_mutex);
/* Do simple sanity checks on the flash image. */
static int flash_list_valid(struct flash_block_list *flist)
@@ -191,10 +210,10 @@ static void free_flash_list(struct flash_block_list *f)
static int rtas_flash_release(struct inode *inode, struct file *file)
{
- struct proc_dir_entry *dp = PDE(file_inode(file));
- struct rtas_update_flash_t *uf;
-
- uf = (struct rtas_update_flash_t *) dp->data;
+ struct rtas_update_flash_t *const uf = &rtas_update_flash_data;
+
+ mutex_lock(&rtas_update_flash_mutex);
+
if (uf->flist) {
/* File was opened in write mode for a new flash attempt */
/* Clear saved list */
@@ -214,13 +233,14 @@ static int rtas_flash_release(struct inode *inode, struct file *file)
uf->flist = NULL;
}
- atomic_dec(&dp->count);
+ mutex_unlock(&rtas_update_flash_mutex);
return 0;
}
-static void get_flash_status_msg(int status, char *buf)
+static size_t get_flash_status_msg(int status, char *buf)
{
- char *msg;
+ const char *msg;
+ size_t len;
switch (status) {
case FLASH_AUTH:
@@ -242,36 +262,47 @@ static void get_flash_status_msg(int status, char *buf)
msg = "ready: firmware image ready for flash on reboot\n";
break;
default:
- sprintf(buf, "error: unexpected status value %d\n", status);
- return;
+ return sprintf(buf, "error: unexpected status value %d\n",
+ status);
}
- strcpy(buf, msg);
+ len = strlen(msg);
+ memcpy(buf, msg, len + 1);
+ return len;
}
/* Reading the proc file will show status (not the firmware contents) */
-static ssize_t rtas_flash_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
+static ssize_t rtas_flash_read_msg(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
{
- struct proc_dir_entry *dp = PDE(file_inode(file));
- struct rtas_update_flash_t *uf;
+ struct rtas_update_flash_t *const uf = &rtas_update_flash_data;
char msg[RTAS_MSG_MAXLEN];
+ size_t len;
+ int status;
- uf = dp->data;
-
- if (!strcmp(dp->name, FIRMWARE_FLASH_NAME)) {
- get_flash_status_msg(uf->status, msg);
- } else { /* FIRMWARE_UPDATE_NAME */
- sprintf(msg, "%d\n", uf->status);
- }
+ mutex_lock(&rtas_update_flash_mutex);
+ status = uf->status;
+ mutex_unlock(&rtas_update_flash_mutex);
- return simple_read_from_buffer(buf, count, ppos, msg, strlen(msg));
+ /* Read as text message */
+ len = get_flash_status_msg(status, msg);
+ return simple_read_from_buffer(buf, count, ppos, msg, len);
}
-/* constructor for flash_block_cache */
-void rtas_block_ctor(void *ptr)
+static ssize_t rtas_flash_read_num(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
{
- memset(ptr, 0, RTAS_BLK_SIZE);
+ struct rtas_update_flash_t *const uf = &rtas_update_flash_data;
+ char msg[RTAS_MSG_MAXLEN];
+ int status;
+
+ mutex_lock(&rtas_update_flash_mutex);
+ status = uf->status;
+ mutex_unlock(&rtas_update_flash_mutex);
+
+ /* Read as number */
+ sprintf(msg, "%d\n", status);
+ return simple_read_from_buffer(buf, count, ppos, msg, strlen(msg));
}
/* We could be much more efficient here. But to keep this function
@@ -282,25 +313,24 @@ void rtas_block_ctor(void *ptr)
static ssize_t rtas_flash_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off)
{
- struct proc_dir_entry *dp = PDE(file_inode(file));
- struct rtas_update_flash_t *uf;
+ struct rtas_update_flash_t *const uf = &rtas_update_flash_data;
char *p;
- int next_free;
+ int next_free, rc;
struct flash_block_list *fl;
- uf = (struct rtas_update_flash_t *) dp->data;
+ mutex_lock(&rtas_update_flash_mutex);
if (uf->status == FLASH_AUTH || count == 0)
- return count; /* discard data */
+ goto out; /* discard data */
/* In the case that the image is not ready for flashing, the memory
* allocated for the block list will be freed upon the release of the
* proc file
*/
if (uf->flist == NULL) {
- uf->flist = kmem_cache_alloc(flash_block_cache, GFP_KERNEL);
+ uf->flist = kmem_cache_zalloc(flash_block_cache, GFP_KERNEL);
if (!uf->flist)
- return -ENOMEM;
+ goto nomem;
}
fl = uf->flist;
@@ -309,63 +339,48 @@ static ssize_t rtas_flash_write(struct file *file, const char __user *buffer,
next_free = fl->num_blocks;
if (next_free == FLASH_BLOCKS_PER_NODE) {
/* Need to allocate another block_list */
- fl->next = kmem_cache_alloc(flash_block_cache, GFP_KERNEL);
+ fl->next = kmem_cache_zalloc(flash_block_cache, GFP_KERNEL);
if (!fl->next)
- return -ENOMEM;
+ goto nomem;
fl = fl->next;
next_free = 0;
}
if (count > RTAS_BLK_SIZE)
count = RTAS_BLK_SIZE;
- p = kmem_cache_alloc(flash_block_cache, GFP_KERNEL);
+ p = kmem_cache_zalloc(flash_block_cache, GFP_KERNEL);
if (!p)
- return -ENOMEM;
+ goto nomem;
if(copy_from_user(p, buffer, count)) {
kmem_cache_free(flash_block_cache, p);
- return -EFAULT;
+ rc = -EFAULT;
+ goto error;
}
fl->blocks[next_free].data = p;
fl->blocks[next_free].length = count;
fl->num_blocks++;
-
+out:
+ mutex_unlock(&rtas_update_flash_mutex);
return count;
-}
-static int rtas_excl_open(struct inode *inode, struct file *file)
-{
- struct proc_dir_entry *dp = PDE(inode);
-
- /* Enforce exclusive open with use count of PDE */
- spin_lock(&flash_file_open_lock);
- if (atomic_read(&dp->count) > 2) {
- spin_unlock(&flash_file_open_lock);
- return -EBUSY;
- }
-
- atomic_inc(&dp->count);
- spin_unlock(&flash_file_open_lock);
-
- return 0;
-}
-
-static int rtas_excl_release(struct inode *inode, struct file *file)
-{
- struct proc_dir_entry *dp = PDE(inode);
-
- atomic_dec(&dp->count);
-
- return 0;
+nomem:
+ rc = -ENOMEM;
+error:
+ mutex_unlock(&rtas_update_flash_mutex);
+ return rc;
}
-static void manage_flash(struct rtas_manage_flash_t *args_buf)
+/*
+ * Flash management routines.
+ */
+static void manage_flash(struct rtas_manage_flash_t *args_buf, unsigned int op)
{
s32 rc;
do {
- rc = rtas_call(rtas_token("ibm,manage-flash-image"), 1,
- 1, NULL, args_buf->op);
+ rc = rtas_call(rtas_token("ibm,manage-flash-image"), 1, 1,
+ NULL, op);
} while (rtas_busy_delay(rc));
args_buf->status = rc;
@@ -374,55 +389,62 @@ static void manage_flash(struct rtas_manage_flash_t *args_buf)
static ssize_t manage_flash_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
- struct proc_dir_entry *dp = PDE(file_inode(file));
- struct rtas_manage_flash_t *args_buf;
+ struct rtas_manage_flash_t *const args_buf = &rtas_manage_flash_data;
char msg[RTAS_MSG_MAXLEN];
- int msglen;
+ int msglen, status;
- args_buf = dp->data;
- if (args_buf == NULL)
- return 0;
-
- msglen = sprintf(msg, "%d\n", args_buf->status);
+ mutex_lock(&rtas_manage_flash_mutex);
+ status = args_buf->status;
+ mutex_unlock(&rtas_manage_flash_mutex);
+ msglen = sprintf(msg, "%d\n", status);
return simple_read_from_buffer(buf, count, ppos, msg, msglen);
}
static ssize_t manage_flash_write(struct file *file, const char __user *buf,
size_t count, loff_t *off)
{
- struct proc_dir_entry *dp = PDE(file_inode(file));
- struct rtas_manage_flash_t *args_buf;
- const char reject_str[] = "0";
- const char commit_str[] = "1";
+ struct rtas_manage_flash_t *const args_buf = &rtas_manage_flash_data;
+ static const char reject_str[] = "0";
+ static const char commit_str[] = "1";
char stkbuf[10];
- int op;
+ int op, rc;
+
+ mutex_lock(&rtas_manage_flash_mutex);
- args_buf = (struct rtas_manage_flash_t *) dp->data;
if ((args_buf->status == MANAGE_AUTH) || (count == 0))
- return count;
+ goto out;
op = -1;
if (buf) {
if (count > 9) count = 9;
- if (copy_from_user (stkbuf, buf, count)) {
- return -EFAULT;
- }
+ rc = -EFAULT;
+ if (copy_from_user (stkbuf, buf, count))
+ goto error;
if (strncmp(stkbuf, reject_str, strlen(reject_str)) == 0)
op = RTAS_REJECT_TMP_IMG;
else if (strncmp(stkbuf, commit_str, strlen(commit_str)) == 0)
op = RTAS_COMMIT_TMP_IMG;
}
- if (op == -1) /* buf is empty, or contains invalid string */
- return -EINVAL;
-
- args_buf->op = op;
- manage_flash(args_buf);
+ if (op == -1) { /* buf is empty, or contains invalid string */
+ rc = -EINVAL;
+ goto error;
+ }
+ manage_flash(args_buf, op);
+out:
+ mutex_unlock(&rtas_manage_flash_mutex);
return count;
+
+error:
+ mutex_unlock(&rtas_manage_flash_mutex);
+ return rc;
}
+/*
+ * Validation routines.
+ */
static void validate_flash(struct rtas_validate_flash_t *args_buf)
{
int token = rtas_token("ibm,validate-flash-image");
@@ -462,14 +484,14 @@ static int get_validate_flash_msg(struct rtas_validate_flash_t *args_buf,
static ssize_t validate_flash_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
- struct proc_dir_entry *dp = PDE(file_inode(file));
- struct rtas_validate_flash_t *args_buf;
+ struct rtas_validate_flash_t *const args_buf =
+ &rtas_validate_flash_data;
char msg[RTAS_MSG_MAXLEN];
int msglen;
- args_buf = dp->data;
-
+ mutex_lock(&rtas_validate_flash_mutex);
msglen = get_validate_flash_msg(args_buf, msg);
+ mutex_unlock(&rtas_validate_flash_mutex);
return simple_read_from_buffer(buf, count, ppos, msg, msglen);
}
@@ -477,24 +499,18 @@ static ssize_t validate_flash_read(struct file *file, char __user *buf,
static ssize_t validate_flash_write(struct file *file, const char __user *buf,
size_t count, loff_t *off)
{
- struct proc_dir_entry *dp = PDE(file_inode(file));
- struct rtas_validate_flash_t *args_buf;
+ struct rtas_validate_flash_t *const args_buf =
+ &rtas_validate_flash_data;
int rc;
- args_buf = (struct rtas_validate_flash_t *) dp->data;
-
- if (dp->data == NULL) {
- dp->data = kmalloc(sizeof(struct rtas_validate_flash_t),
- GFP_KERNEL);
- if (dp->data == NULL)
- return -ENOMEM;
- }
+ mutex_lock(&rtas_validate_flash_mutex);
/* We are only interested in the first 4K of the
* candidate image */
if ((*off >= VALIDATE_BUF_SIZE) ||
(args_buf->status == VALIDATE_AUTH)) {
*off += count;
+ mutex_unlock(&rtas_validate_flash_mutex);
return count;
}
@@ -517,31 +533,29 @@ static ssize_t validate_flash_write(struct file *file, const char __user *buf,
*off += count;
rc = count;
done:
- if (rc < 0) {
- kfree(dp->data);
- dp->data = NULL;
- }
+ mutex_unlock(&rtas_validate_flash_mutex);
return rc;
}
static int validate_flash_release(struct inode *inode, struct file *file)
{
- struct proc_dir_entry *dp = PDE(file_inode(file));
- struct rtas_validate_flash_t *args_buf;
+ struct rtas_validate_flash_t *const args_buf =
+ &rtas_validate_flash_data;
- args_buf = (struct rtas_validate_flash_t *) dp->data;
+ mutex_lock(&rtas_validate_flash_mutex);
if (args_buf->status == VALIDATE_READY) {
args_buf->buf_size = VALIDATE_BUF_SIZE;
validate_flash(args_buf);
}
- /* The matching atomic_inc was in rtas_excl_open() */
- atomic_dec(&dp->count);
-
+ mutex_unlock(&rtas_validate_flash_mutex);
return 0;
}
+/*
+ * On-reboot flash update applicator.
+ */
static void rtas_flash_firmware(int reboot_type)
{
unsigned long image_size;
@@ -634,75 +648,57 @@ static void rtas_flash_firmware(int reboot_type)
spin_unlock(&rtas_data_buf_lock);
}
-static void remove_flash_pde(struct proc_dir_entry *dp)
-{
- if (dp) {
- kfree(dp->data);
- remove_proc_entry(dp->name, dp->parent);
- }
-}
-
-static int initialize_flash_pde_data(const char *rtas_call_name,
- size_t buf_size,
- struct proc_dir_entry *dp)
-{
+/*
+ * Manifest of proc files to create
+ */
+struct rtas_flash_file {
+ const char *filename;
+ const char *rtas_call_name;
int *status;
- int token;
-
- dp->data = kzalloc(buf_size, GFP_KERNEL);
- if (dp->data == NULL)
- return -ENOMEM;
-
- /*
- * This code assumes that the status int is the first member of the
- * struct
- */
- status = (int *) dp->data;
- token = rtas_token(rtas_call_name);
- if (token == RTAS_UNKNOWN_SERVICE)
- *status = FLASH_AUTH;
- else
- *status = FLASH_NO_OP;
-
- return 0;
-}
-
-static struct proc_dir_entry *create_flash_pde(const char *filename,
- const struct file_operations *fops)
-{
- return proc_create(filename, S_IRUSR | S_IWUSR, NULL, fops);
-}
-
-static const struct file_operations rtas_flash_operations = {
- .owner = THIS_MODULE,
- .read = rtas_flash_read,
- .write = rtas_flash_write,
- .open = rtas_excl_open,
- .release = rtas_flash_release,
- .llseek = default_llseek,
-};
-
-static const struct file_operations manage_flash_operations = {
- .owner = THIS_MODULE,
- .read = manage_flash_read,
- .write = manage_flash_write,
- .open = rtas_excl_open,
- .release = rtas_excl_release,
- .llseek = default_llseek,
+ const struct file_operations fops;
};
-static const struct file_operations validate_flash_operations = {
- .owner = THIS_MODULE,
- .read = validate_flash_read,
- .write = validate_flash_write,
- .open = rtas_excl_open,
- .release = validate_flash_release,
- .llseek = default_llseek,
+static const struct rtas_flash_file rtas_flash_files[] = {
+ {
+ .filename = "powerpc/rtas/" FIRMWARE_FLASH_NAME,
+ .rtas_call_name = "ibm,update-flash-64-and-reboot",
+ .status = &rtas_update_flash_data.status,
+ .fops.read = rtas_flash_read_msg,
+ .fops.write = rtas_flash_write,
+ .fops.release = rtas_flash_release,
+ .fops.llseek = default_llseek,
+ },
+ {
+ .filename = "powerpc/rtas/" FIRMWARE_UPDATE_NAME,
+ .rtas_call_name = "ibm,update-flash-64-and-reboot",
+ .status = &rtas_update_flash_data.status,
+ .fops.read = rtas_flash_read_num,
+ .fops.write = rtas_flash_write,
+ .fops.release = rtas_flash_release,
+ .fops.llseek = default_llseek,
+ },
+ {
+ .filename = "powerpc/rtas/" VALIDATE_FLASH_NAME,
+ .rtas_call_name = "ibm,validate-flash-image",
+ .status = &rtas_validate_flash_data.status,
+ .fops.read = validate_flash_read,
+ .fops.write = validate_flash_write,
+ .fops.release = validate_flash_release,
+ .fops.llseek = default_llseek,
+ },
+ {
+ .filename = "powerpc/rtas/" MANAGE_FLASH_NAME,
+ .rtas_call_name = "ibm,manage-flash-image",
+ .status = &rtas_manage_flash_data.status,
+ .fops.read = manage_flash_read,
+ .fops.write = manage_flash_write,
+ .fops.llseek = default_llseek,
+ }
};
static int __init rtas_flash_init(void)
{
- int rc;
+ int i;
if (rtas_token("ibm,update-flash-64-and-reboot") ==
RTAS_UNKNOWN_SERVICE) {
@@ -710,93 +706,70 @@ static int __init rtas_flash_init(void)
return 1;
}
- firmware_flash_pde = create_flash_pde("powerpc/rtas/"
- FIRMWARE_FLASH_NAME,
- &rtas_flash_operations);
- if (firmware_flash_pde == NULL) {
- rc = -ENOMEM;
- goto cleanup;
- }
+ rtas_validate_flash_data.buf = kzalloc(VALIDATE_BUF_SIZE, GFP_KERNEL);
+ if (!rtas_validate_flash_data.buf)
+ return -ENOMEM;
- rc = initialize_flash_pde_data("ibm,update-flash-64-and-reboot",
- sizeof(struct rtas_update_flash_t),
- firmware_flash_pde);
- if (rc != 0)
- goto cleanup;
-
- firmware_update_pde = create_flash_pde("powerpc/rtas/"
- FIRMWARE_UPDATE_NAME,
- &rtas_flash_operations);
- if (firmware_update_pde == NULL) {
- rc = -ENOMEM;
- goto cleanup;
+ flash_block_cache = kmem_cache_create("rtas_flash_cache",
+ RTAS_BLK_SIZE, RTAS_BLK_SIZE, 0,
+ NULL);
+ if (!flash_block_cache) {
+ printk(KERN_ERR "%s: failed to create block cache\n",
+ __func__);
+ goto enomem_buf;
}
- rc = initialize_flash_pde_data("ibm,update-flash-64-and-reboot",
- sizeof(struct rtas_update_flash_t),
- firmware_update_pde);
- if (rc != 0)
- goto cleanup;
-
- validate_pde = create_flash_pde("powerpc/rtas/" VALIDATE_FLASH_NAME,
- &validate_flash_operations);
- if (validate_pde == NULL) {
- rc = -ENOMEM;
- goto cleanup;
- }
+ for (i = 0; i < ARRAY_SIZE(rtas_flash_files); i++) {
+ const struct rtas_flash_file *f = &rtas_flash_files[i];
+ int token;
- rc = initialize_flash_pde_data("ibm,validate-flash-image",
- sizeof(struct rtas_validate_flash_t),
- validate_pde);
- if (rc != 0)
- goto cleanup;
-
- manage_pde = create_flash_pde("powerpc/rtas/" MANAGE_FLASH_NAME,
- &manage_flash_operations);
- if (manage_pde == NULL) {
- rc = -ENOMEM;
- goto cleanup;
- }
+ if (!proc_create(f->filename, S_IRUSR | S_IWUSR, NULL, &f->fops))
+ goto enomem;
- rc = initialize_flash_pde_data("ibm,manage-flash-image",
- sizeof(struct rtas_manage_flash_t),
- manage_pde);
- if (rc != 0)
- goto cleanup;
+ /*
+ * This code assumes that the status int is the first member of the
+ * struct
+ */
+ token = rtas_token(f->rtas_call_name);
+ if (token == RTAS_UNKNOWN_SERVICE)
+ *f->status = FLASH_AUTH;
+ else
+ *f->status = FLASH_NO_OP;
+ }
rtas_flash_term_hook = rtas_flash_firmware;
-
- flash_block_cache = kmem_cache_create("rtas_flash_cache",
- RTAS_BLK_SIZE, RTAS_BLK_SIZE, 0,
- rtas_block_ctor);
- if (!flash_block_cache) {
- printk(KERN_ERR "%s: failed to create block cache\n",
- __func__);
- rc = -ENOMEM;
- goto cleanup;
- }
return 0;
-cleanup:
- remove_flash_pde(firmware_flash_pde);
- remove_flash_pde(firmware_update_pde);
- remove_flash_pde(validate_pde);
- remove_flash_pde(manage_pde);
+enomem:
+ while (--i >= 0) {
+ const struct rtas_flash_file *f = &rtas_flash_files[i];
+ remove_proc_entry(f->filename, NULL);
+ }
- return rc;
+ kmem_cache_destroy(flash_block_cache);
+enomem_buf:
+ kfree(rtas_validate_flash_data.buf);
+ return -ENOMEM;
}
static void __exit rtas_flash_cleanup(void)
{
+ int i;
+
rtas_flash_term_hook = NULL;
- if (flash_block_cache)
- kmem_cache_destroy(flash_block_cache);
+ if (rtas_firmware_flash_list) {
+ free_flash_list(rtas_firmware_flash_list);
+ rtas_firmware_flash_list = NULL;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(rtas_flash_files); i++) {
+ const struct rtas_flash_file *f = &rtas_flash_files[i];
+ remove_proc_entry(f->filename, NULL);
+ }
- remove_flash_pde(firmware_flash_pde);
- remove_flash_pde(firmware_update_pde);
- remove_flash_pde(validate_pde);
- remove_flash_pde(manage_pde);
+ kmem_cache_destroy(flash_block_cache);
+ kfree(rtas_validate_flash_data.buf);
}
module_init(rtas_flash_init);
diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index 71cb20d6ec6..6e7b7cdeec6 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -201,7 +201,7 @@ static void python_countermeasures(struct device_node *dev)
iounmap(chip_regs);
}
-void __init init_pci_config_tokens (void)
+void __init init_pci_config_tokens(void)
{
read_pci_config = rtas_token("read-pci-config");
write_pci_config = rtas_token("write-pci-config");
@@ -209,7 +209,7 @@ void __init init_pci_config_tokens (void)
ibm_write_pci_config = rtas_token("ibm,write-pci-config");
}
-unsigned long get_phb_buid (struct device_node *phb)
+unsigned long get_phb_buid(struct device_node *phb)
{
struct resource r;
diff --git a/arch/powerpc/kernel/rtasd.c b/arch/powerpc/kernel/rtasd.c
index 1045ff49cc6..1130c53ad65 100644
--- a/arch/powerpc/kernel/rtasd.c
+++ b/arch/powerpc/kernel/rtasd.c
@@ -29,6 +29,7 @@
#include <asm/nvram.h>
#include <linux/atomic.h>
#include <asm/machdep.h>
+#include <asm/topology.h>
static DEFINE_SPINLOCK(rtasd_log_lock);
@@ -87,6 +88,8 @@ static char *rtas_event_type(int type)
return "Resource Deallocation Event";
case RTAS_TYPE_DUMP:
return "Dump Notification Event";
+ case RTAS_TYPE_PRRN:
+ return "Platform Resource Reassignment Event";
}
return rtas_type[0];
@@ -265,9 +268,51 @@ void pSeries_log_error(char *buf, unsigned int err_type, int fatal)
spin_unlock_irqrestore(&rtasd_log_lock, s);
return;
}
+}
+
+#ifdef CONFIG_PPC_PSERIES
+static s32 prrn_update_scope;
+static void prrn_work_fn(struct work_struct *work)
+{
+ /*
+ * For PRRN, we must pass the negative of the scope value in
+ * the RTAS event.
+ */
+ pseries_devicetree_update(-prrn_update_scope);
}
+static DECLARE_WORK(prrn_work, prrn_work_fn);
+
+void prrn_schedule_update(u32 scope)
+{
+ flush_work(&prrn_work);
+ prrn_update_scope = scope;
+ schedule_work(&prrn_work);
+}
+
+static void handle_rtas_event(const struct rtas_error_log *log)
+{
+ if (log->type == RTAS_TYPE_PRRN) {
+ /* For PRRN Events the extended log length is used to denote
+ * the scope for calling rtas update-nodes.
+ */
+ if (prrn_is_enabled())
+ prrn_schedule_update(log->extended_log_length);
+ }
+
+ return;
+}
+
+#else
+
+static void handle_rtas_event(const struct rtas_error_log *log)
+{
+ return;
+}
+
+#endif
+
static int rtas_log_open(struct inode * inode, struct file * file)
{
return 0;
@@ -388,8 +433,10 @@ static void do_event_scan(void)
break;
}
- if (error == 0)
+ if (error == 0) {
pSeries_log_error(logdata, ERR_TYPE_RTAS_LOG, 0);
+ handle_rtas_event((struct rtas_error_log *)logdata);
+ }
} while(error == 0);
}
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index bdc499c1787..63d051f5b7a 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -621,12 +621,6 @@ int check_legacy_ioport(unsigned long base_port)
case FDC_BASE: /* FDC1 */
np = of_find_node_by_type(NULL, "fdc");
break;
-#ifdef CONFIG_PPC_PREP
- case _PIDXR:
- case _PNPWRP:
- case PNPBIOS_BASE:
- /* implement me */
-#endif
default:
/* ipmi is supposed to fail here */
break;
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 75fbaceb5c8..e379d3fd169 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -583,7 +583,9 @@ void __init setup_arch(char **cmdline_p)
init_mm.end_code = (unsigned long) _etext;
init_mm.end_data = (unsigned long) _edata;
init_mm.brk = klimit;
-
+#ifdef CONFIG_PPC_64K_PAGES
+ init_mm.context.pte_frag = NULL;
+#endif
irqstack_early_init();
exc_lvl_early_init();
emergency_stack_init();
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 3acb28e245b..95068bf569a 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -866,10 +866,12 @@ static long restore_tm_user_regs(struct pt_regs *regs,
do_load_up_transact_fpu(&current->thread);
regs->msr |= (MSR_FP | current->thread.fpexc_mode);
}
+#ifdef CONFIG_ALTIVEC
if (msr & MSR_VEC) {
do_load_up_transact_altivec(&current->thread);
regs->msr |= MSR_VEC;
}
+#endif
return 0;
}
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 995f8543cb5..c1794286098 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -522,10 +522,12 @@ static long restore_tm_sigcontexts(struct pt_regs *regs,
do_load_up_transact_fpu(&current->thread);
regs->msr |= (MSR_FP | current->thread.fpexc_mode);
}
+#ifdef CONFIG_ALTIVEC
if (msr & MSR_VEC) {
do_load_up_transact_altivec(&current->thread);
regs->msr |= MSR_VEC;
}
+#endif
return err;
}
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 76bd9da8cb7..ee7ac5e6e28 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -669,7 +669,7 @@ __cpuinit void start_secondary(void *unused)
local_irq_enable();
- cpu_idle();
+ cpu_startup_entry(CPUHP_ONLINE);
BUG();
}
diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
index d0bafc0cdf0..cd6e19d263b 100644
--- a/arch/powerpc/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -61,91 +61,6 @@ asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp,
return compat_sys_select((int)n, inp, outp, exp, compat_ptr(tvp_x));
}
-#ifdef CONFIG_SYSVIPC
-long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr,
- u32 fifth)
-{
- int version;
-
- version = call >> 16; /* hack for backward compatibility */
- call &= 0xffff;
-
- switch (call) {
-
- case SEMTIMEDOP:
- if (fifth)
- /* sign extend semid */
- return compat_sys_semtimedop((int)first,
- compat_ptr(ptr), second,
- compat_ptr(fifth));
- /* else fall through for normal semop() */
- case SEMOP:
- /* struct sembuf is the same on 32 and 64bit :)) */
- /* sign extend semid */
- return sys_semtimedop((int)first, compat_ptr(ptr), second,
- NULL);
- case SEMGET:
- /* sign extend key, nsems */
- return sys_semget((int)first, (int)second, third);
- case SEMCTL:
- /* sign extend semid, semnum */
- return compat_sys_semctl((int)first, (int)second, third,
- compat_ptr(ptr));
-
- case MSGSND:
- /* sign extend msqid */
- return compat_sys_msgsnd((int)first, (int)second, third,
- compat_ptr(ptr));
- case MSGRCV:
- /* sign extend msqid, msgtyp */
- return compat_sys_msgrcv((int)first, second, (int)fifth,
- third, version, compat_ptr(ptr));
- case MSGGET:
- /* sign extend key */
- return sys_msgget((int)first, second);
- case MSGCTL:
- /* sign extend msqid */
- return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
-
- case SHMAT:
- /* sign extend shmid */
- return compat_sys_shmat((int)first, second, third, version,
- compat_ptr(ptr));
- case SHMDT:
- return sys_shmdt(compat_ptr(ptr));
- case SHMGET:
- /* sign extend key_t */
- return sys_shmget((int)first, second, third);
- case SHMCTL:
- /* sign extend shmid */
- return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
-
- default:
- return -ENOSYS;
- }
-
- return -ENOSYS;
-}
-#endif
-
-/* Note: it is necessary to treat out_fd and in_fd as unsigned ints,
- * with the corresponding cast to a signed int to insure that the
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_sendfile_wrapper(u32 out_fd, u32 in_fd,
- compat_off_t __user *offset, u32 count)
-{
- return compat_sys_sendfile((int)out_fd, (int)in_fd, offset, count);
-}
-
-asmlinkage long compat_sys_sendfile64_wrapper(u32 out_fd, u32 in_fd,
- compat_loff_t __user *offset, u32 count)
-{
- return sys_sendfile((int)out_fd, (int)in_fd,
- (off_t __user *)offset, count);
-}
-
unsigned long compat_sys_mmap2(unsigned long addr, size_t len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long pgoff)
@@ -195,13 +110,6 @@ asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long h
return sys_ftruncate(fd, (high << 32) | low);
}
-long ppc32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf,
- size_t len)
-{
- return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low,
- buf, len);
-}
-
long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low,
size_t len, int advice)
{
@@ -209,23 +117,6 @@ long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low,
advice);
}
-asmlinkage long compat_sys_add_key(const char __user *_type,
- const char __user *_description,
- const void __user *_payload,
- u32 plen,
- u32 ringid)
-{
- return sys_add_key(_type, _description, _payload, plen, ringid);
-}
-
-asmlinkage long compat_sys_request_key(const char __user *_type,
- const char __user *_description,
- const char __user *_callout_info,
- u32 destringid)
-{
- return sys_request_key(_type, _description, _callout_info, destringid);
-}
-
asmlinkage long compat_sys_sync_file_range2(int fd, unsigned int flags,
unsigned offset_hi, unsigned offset_lo,
unsigned nbytes_hi, unsigned nbytes_lo)
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index f77fa22754b..5fc29ad7e26 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -1049,10 +1049,8 @@ static int __init rtc_init(void)
return -ENODEV;
pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
- if (IS_ERR(pdev))
- return PTR_ERR(pdev);
- return 0;
+ return PTR_RET(pdev);
}
module_init(rtc_init);
diff --git a/arch/powerpc/kernel/tm.S b/arch/powerpc/kernel/tm.S
index 84dbace657c..2da67e7a16d 100644
--- a/arch/powerpc/kernel/tm.S
+++ b/arch/powerpc/kernel/tm.S
@@ -309,6 +309,7 @@ _GLOBAL(tm_recheckpoint)
or r5, r6, r5 /* Set MSR.FP+.VSX/.VEC */
mtmsr r5
+#ifdef CONFIG_ALTIVEC
/* FP and VEC registers: These are recheckpointed from thread.fpr[]
* and thread.vr[] respectively. The thread.transact_fpr[] version
* is more modern, and will be loaded subsequently by any FPUnavailable
@@ -323,6 +324,7 @@ _GLOBAL(tm_recheckpoint)
REST_32VRS(0, r5, r3) /* r5 scratch, r3 THREAD ptr */
ld r5, THREAD_VRSAVE(r3)
mtspr SPRN_VRSAVE, r5
+#endif
dont_restore_vec:
andi. r0, r4, MSR_FP
diff --git a/arch/powerpc/kernel/udbg.c b/arch/powerpc/kernel/udbg.c
index f9748498fe5..13b86709349 100644
--- a/arch/powerpc/kernel/udbg.c
+++ b/arch/powerpc/kernel/udbg.c
@@ -156,15 +156,13 @@ static struct console udbg_console = {
.index = 0,
};
-static int early_console_initialized;
-
/*
* Called by setup_system after ppc_md->probe and ppc_md->early_init.
* Call it again after setting udbg_putc in ppc_md->setup_arch.
*/
void __init register_early_udbg_console(void)
{
- if (early_console_initialized)
+ if (early_console)
return;
if (!udbg_putc)
@@ -174,7 +172,7 @@ void __init register_early_udbg_console(void)
printk(KERN_INFO "early console immortal !\n");
udbg_console.flags &= ~CON_BOOT;
}
- early_console_initialized = 1;
+ early_console = &udbg_console;
register_console(&udbg_console);
}
diff --git a/arch/powerpc/kernel/uprobes.c b/arch/powerpc/kernel/uprobes.c
index bc77834dbf4..59f419b935f 100644
--- a/arch/powerpc/kernel/uprobes.c
+++ b/arch/powerpc/kernel/uprobes.c
@@ -31,6 +31,16 @@
#define UPROBE_TRAP_NR UINT_MAX
/**
+ * is_trap_insn - check if the instruction is a trap variant
+ * @insn: instruction to be checked.
+ * Returns true if @insn is a trap variant.
+ */
+bool is_trap_insn(uprobe_opcode_t *insn)
+{
+ return (is_trap(*insn));
+}
+
+/**
* arch_uprobe_analyze_insn
* @mm: the probed address space.
* @arch_uprobe: the probepoint information.
@@ -43,12 +53,6 @@ int arch_uprobe_analyze_insn(struct arch_uprobe *auprobe,
if (addr & 0x03)
return -EINVAL;
- /*
- * We currently don't support a uprobe on an already
- * existing breakpoint instruction underneath
- */
- if (is_trap(auprobe->ainsn))
- return -ENOTSUPP;
return 0;
}
@@ -188,3 +192,16 @@ bool arch_uprobe_skip_sstep(struct arch_uprobe *auprobe, struct pt_regs *regs)
return false;
}
+
+unsigned long
+arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs *regs)
+{
+ unsigned long orig_ret_vaddr;
+
+ orig_ret_vaddr = regs->link;
+
+ /* Replace the return addr with trampoline addr */
+ regs->link = trampoline_vaddr;
+
+ return orig_ret_vaddr;
+}
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index 1b2076f049c..d4f463ac65b 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -113,6 +113,10 @@ static struct vdso_patch_def vdso_patches[] = {
CPU_FTR_USE_TB, 0,
"__kernel_get_tbfreq", NULL
},
+ {
+ CPU_FTR_USE_TB, 0,
+ "__kernel_time", NULL
+ },
};
/*
diff --git a/arch/powerpc/kernel/vdso32/gettimeofday.S b/arch/powerpc/kernel/vdso32/gettimeofday.S
index 4ee09ee2e83..27e2f623210 100644
--- a/arch/powerpc/kernel/vdso32/gettimeofday.S
+++ b/arch/powerpc/kernel/vdso32/gettimeofday.S
@@ -181,6 +181,32 @@ V_FUNCTION_END(__kernel_clock_getres)
/*
+ * Exact prototype of time()
+ *
+ * time_t time(time *t);
+ *
+ */
+V_FUNCTION_BEGIN(__kernel_time)
+ .cfi_startproc
+ mflr r12
+ .cfi_register lr,r12
+
+ mr r11,r3 /* r11 holds t */
+ bl __get_datapage@local
+ mr r9, r3 /* datapage ptr in r9 */
+
+ lwz r3,STAMP_XTIME+TSPEC_TV_SEC(r9)
+
+ cmplwi r11,0 /* check if t is NULL */
+ beq 2f
+ stw r3,0(r11) /* store result at *t */
+2: mtlr r12
+ crclr cr0*4+so
+ blr
+ .cfi_endproc
+V_FUNCTION_END(__kernel_time)
+
+/*
* This is the core of clock_gettime() and gettimeofday(),
* it returns the current time in r3 (seconds) and r4.
* On entry, r7 gives the resolution of r4, either USEC_PER_SEC
diff --git a/arch/powerpc/kernel/vdso32/vdso32.lds.S b/arch/powerpc/kernel/vdso32/vdso32.lds.S
index 43200ba2e57..f223409629b 100644
--- a/arch/powerpc/kernel/vdso32/vdso32.lds.S
+++ b/arch/powerpc/kernel/vdso32/vdso32.lds.S
@@ -150,6 +150,7 @@ VERSION
#ifdef CONFIG_PPC64
__kernel_getcpu;
#endif
+ __kernel_time;
local: *;
};
diff --git a/arch/powerpc/kernel/vdso64/gettimeofday.S b/arch/powerpc/kernel/vdso64/gettimeofday.S
index e97a9a0dc4a..a76b4af37ef 100644
--- a/arch/powerpc/kernel/vdso64/gettimeofday.S
+++ b/arch/powerpc/kernel/vdso64/gettimeofday.S
@@ -164,6 +164,32 @@ V_FUNCTION_BEGIN(__kernel_clock_getres)
.cfi_endproc
V_FUNCTION_END(__kernel_clock_getres)
+/*
+ * Exact prototype of time()
+ *
+ * time_t time(time *t);
+ *
+ */
+V_FUNCTION_BEGIN(__kernel_time)
+ .cfi_startproc
+ mflr r12
+ .cfi_register lr,r12
+
+ mr r11,r3 /* r11 holds t */
+ bl V_LOCAL_FUNC(__get_datapage)
+
+ ld r4,STAMP_XTIME+TSPC64_TV_SEC(r3)
+
+ cmpldi r11,0 /* check if t is NULL */
+ beq 2f
+ std r4,0(r11) /* store result at *t */
+2: mtlr r12
+ crclr cr0*4+so
+ mr r3,r4
+ blr
+ .cfi_endproc
+V_FUNCTION_END(__kernel_time)
+
/*
* This is the core of clock_gettime() and gettimeofday(),
diff --git a/arch/powerpc/kernel/vdso64/vdso64.lds.S b/arch/powerpc/kernel/vdso64/vdso64.lds.S
index e6c1758f358..e4863819663 100644
--- a/arch/powerpc/kernel/vdso64/vdso64.lds.S
+++ b/arch/powerpc/kernel/vdso64/vdso64.lds.S
@@ -147,6 +147,7 @@ VERSION
__kernel_sync_dicache_p5;
__kernel_sigtramp_rt64;
__kernel_getcpu;
+ __kernel_time;
local: *;
};