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2011-09-21MIPS: Lantiq: Fix setting the PCI bus speed on AR9John Crispin
The bits used to set the PCI bus speed on AR9 are slightly different to those used on Danube. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2614/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-21MIPS: Lantiq: Fix external interrupt sourcesJohn Crispin
The irq base offset needs to be ignored when matching irqs to external interrupt pins. Taking the offset into account resulted in the EIU not being brought up properly. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2616/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-21MIPS: tlbex: Fix build error in R3000 code.Ralf Baechle
Only some GCC versions such as gcc 4.2 notice that the variable wr in build_r3000_tlb_modify_handler is used uninitialized. When using one of those GCCs the build will fail due to -Werror. GCC 4.6 does not warn about the uninitialized use of wr. This issue was introduced by 7211f4d7a3dcbe57c5d396c334dca525315dceb2 [MIPS: Close races in TLB modify handlers.] Reported-by: Ganesan Ramalingam <ganesan18@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-21MIPS: Alchemy: Include Au1100 in PM code.Manuel Lauss
The current code forgets the Au1100 when looking for the correct method to suspend the chip. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2675/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-21MIPS: Alchemy: Fix typo in MAC0 registrationManuel Lauss
Harmless typo which prints an error message although MAC0 was registered successfully. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2672/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-21MIPS: MSP71xx: Fix build error.Ralf Baechle
CC arch/mips/pmc-sierra/msp71xx/msp_irq.o /home/ralf/src/linux/linux-mips/arch/mips/pmc-sierra/msp71xx/msp_irq.c:112:2: error: request for member ‘flags’ in something not a structure or union /home/ralf/src/linux/linux-mips/arch/mips/pmc-sierra/msp71xx/msp_irq.c:118:2: error: request for member ‘flags’ in something not a structure or union make[4]: *** [arch/mips/pmc-sierra/msp71xx/msp_irq.o] Error 1 caused by 57336bc1056798d89714b7fb1b1d197e6bda6819 [MIPS: Mark cascade and low level interrupts IRQF_NO_THREAD]. Commas to separate struct initializers generally are considered useful to enhance the compilation experience of the user. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-21MIPS: Handle __put_user() sleeping.Ralf Baechle
do_signal() does __put_user() which can fault, resulting in a might_sleep() warning in down_read(&mm->mmap_sem) and a "scheduling while atomic" warning when mmap_sem is contented. On Swarm this also results in: WARNING: at kernel/smp.c:459 smp_call_function_many+0x148/0x398() Modules linked in: Call Trace: [<ffffffff804b48a4>] dump_stack+0x1c/0x50 [<ffffffff8013dc94>] warn_slowpath_common+0x8c/0xc8 [<ffffffff8013dcfc>] warn_slowpath_null+0x2c/0x40 [<ffffffff801864a0>] smp_call_function_many+0x148/0x398 [<ffffffff80186748>] smp_call_function+0x58/0xa8 [<ffffffff80119b5c>] r4k_flush_data_cache_page+0x54/0xd8 [<ffffffff801f39bc>] handle_pte_fault+0xa9c/0xad0 [<ffffffff801f40d0>] handle_mm_fault+0x158/0x200 [<ffffffff80115548>] do_page_fault+0x218/0x3b0 [<ffffffff80102744>] ret_from_exception+0x0/0x10 [<ffffffff8010eb18>] copy_siginfo_to_user32+0x50/0x298 [<ffffffff8010edf0>] setup_rt_frame_32+0x90/0x250 [<ffffffff80106414>] do_notify_resume+0x154/0x358 [<ffffffff80102930>] work_notifysig+0xc/0x14 Fixed by enabling interrupts in do_notify_resume before delivering signals. [ralf@linux-mips.org: Reported and original fix by tglx but I wanted to minimize the amount of code being run with interrupts disabled so I moved the local_irq_disable() call right into do_notify_resume. Which is saner than doing it in entry.S.] Reported-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-21MIPS: Allow forced irq threadingThomas Gleixner
All low level interrupts have been marked NO_THREAD, so MIPS can enjoy the wonderful world of forced threaded interrupt handlers. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2639/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-21MIPS: i8259: Mark cascade interrupt non-threadedLiming Wang
Cascade interrupts cannot be threaded. Signed-off-by: Liming Wang <liming.wang@windriver.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1314370804-21266-1-git-send-email-liming.wang@windriver.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2770/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-21MIPS: Loongson: Mark cascade interrupts IRQF_NO_THREADWu Zhangjin
There are two cascade interrupts in Loongson machines, one for bonito northbridge, another for the 8259A controller in the southbridge. Both want to be non threaded. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: linux-mips@linux-mips.org Cc: Wu Zhangjin <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/2638/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-21MIPS: Mark cascade and low level interrupts IRQF_NO_THREADWu Zhangjin
Mark interrupts with no_action handler, cascade interrupts, low level interrupts (bus error, halt ..) with IRQF_NO_THREAD to exclude them from forced threading. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: linux-mips@linux-mips.org Cc: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-21MIPS: Make the die_lock be rawWu Zhangjin
On preempt-rt this lock needs to be raw, so it does not get converted to a sleeping spinlock. Trying to sleep in a panic is not really desireable. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2636/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-21MIPS: Ftrace: Fix the CONFIG_DYNAMIC_FTRACE=n compileThomas Gleixner
arch/mips/kernel/ftrace.c: In function ‘ftrace_get_parent_ra_addr’: arch/mips/kernel/ftrace.c:212: error: implicit declaration of function ‘in_kernel_space’ arch/mips/kernel/ftrace.c: In function ‘prepare_ftrace_return’: arch/mips/kernel/ftrace.c:314: error: ‘MCOUNT_OFFSET_INSNS’ undeclared (first use in this function) arch/mips/kernel/ftrace.c:314: error: (Each undeclared identifier is reported only once arch/mips/kernel/ftrace.c:314: error: for each function it appears in.) Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2634/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-21MIPS: RC32434: Fix PCI build errorYoichi Yuasa
arch/mips/pci/pci-rc32434.c: In function 'rc32434_pci_init': arch/mips/pci/pci-rc32434.c:217:16: error: 'rcrc32434_res_pci_io1' undeclared (first use in this function) arch/mips/pci/pci-rc32434.c:217:16: note: each undeclared identifier is reported only once for each function it appears in make[1]: *** [arch/mips/pci/pci-rc32434.o] Error 1 This problem is included in the following commit. commit 28f65c11f2ffb3957259dece647a24f8ad2e241b Author: Joe Perches <joe@perches.com> Date: Thu Jun 9 09:13:32 2011 -0700 treewide: Convert uses of struct resource to resource_size(ptr) Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Cc: linux-mips <linux-mips@linux-mips.org> Cc: Joe Perches <joe@perches.com> Patchwork: https://patchwork.linux-mips.org/patch/2654/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-17MIPS: Remove unneeded version.h includes from arch/mips/Jesper Juhl
It was pointed out by 'make versioncheck' that some includes of linux/version.h are not needed in arch/mips/. This patch removes them. Signed-off-by: Jesper Juhl <jj@chaosbits.net> To: LKML <linux-kernel@vger.kernel.org> Cc: trivial@kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2540/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-17MIPS: Trivial style cleanups in mmap.cKevin Cernekee
Fix checkpatch warnings. Rename arch_get_unmapped_area_foo() to arch_get_unmapped_area_common(). Make indentations and spacing more consistent. Add <linux/compiler.h> for likely/unlikely. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Cc: Jian Peng <jipeng2005@gmail.com> Cc: David Daney <ddaney@caviumnetworks.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2506/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-17MIPS: i8259: Correct comment for i8259Hillf Danton
The comment for the slave PIC is changed from 8259A-1 to 8259A-2. Signed-off-by: Hillf Danton <dhillf@gmail.com> To: LKML <linux-kernel@vger.kernel.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2693/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-17MIPS: VPE: Select correct tcHillf Danton
If we could find tc on the tc list for @index, the found tc should be returned. Signed-off-by: Hillf Danton <dhillf@gmail.com> To: LKML <linux-kernel@vger.kernel.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2692/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-15net: consolidate and fix ethtool_ops->get_settings callingJiri Pirko
This patch does several things: - introduces __ethtool_get_settings which is called from ethtool code and from drivers as well. Put ASSERT_RTNL there. - dev_ethtool_get_settings() is replaced by __ethtool_get_settings() - changes calling in drivers so rtnl locking is respected. In iboe_get_rate was previously ->get_settings() called unlocked. This fixes it. Also prb_calc_retire_blk_tmo() in af_packet.c had the same problem. Also fixed by calling __dev_get_by_index() instead of dev_get_by_index() and holding rtnl_lock for both calls. - introduces rtnl_lock in bnx2fc_vport_create() and fcoe_vport_create() so bnx2fc_if_create() and fcoe_if_create() are called locked as they are from other places. - use __ethtool_get_settings() in bonding code Signed-off-by: Jiri Pirko <jpirko@redhat.com> v2->v3: -removed dev_ethtool_get_settings() -added ASSERT_RTNL into __ethtool_get_settings() -prb_calc_retire_blk_tmo - use __dev_get_by_index() and lock around it and __ethtool_get_settings() call v1->v2: add missing export_symbol Reviewed-by: Ben Hutchings <bhutchings@solarflare.com> [except FCoE bits] Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26All Arch: remove linkage for sys_nfsservctl system callNeilBrown
The nfsservctl system call is now gone, so we should remove all linkage for it. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-23mips: msp71xx/serial: add workaround for DW UARTJamie Iles
The Synopsys DesignWare UART in pmc-sierra msp71xx has an extra feature where the UART detects a write attempt to the LCR whilst busy and raises an interrupt. The driver needs to clear the interrupt and rewrite the LCR. Move this into platform code and out of the 8250 driver. Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23mips: msp71xx/serial: convert to pr_foo() helpersJamie Iles
Convert to pr_foo() helpers rather than printk(KERN_.*). Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Anoop P A<Anoop_P.A@pmc-sierra.com> Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-08bcm47xx: fix irq assignment for new SoCs.Hauke Mehrtens
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-08bcm47xx: add support for bcma busHauke Mehrtens
This patch add support for the bcma bus. Broadcom uses only Mips 74K CPUs on the new SoC and on the old ons using ssb bus there are no Mips 74K CPUs. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-08bcm47xx: make it possible to build bcm47xx without ssb.Hauke Mehrtens
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-08bcm47xx: prepare to support different busesHauke Mehrtens
Prepare bcm47xx to support different System buses. Before adding support for bcma it should be possible to build bcm47xx without the need of ssb. With this patch bcm47xx does not directly contain a ssb_bus, but a union contain all the supported system buses. As a SoC just uses one system bus a union is a good choice. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-08Merge branch 'for-3.1' into for-3.2Mark Brown
Conflict due to the fix for the register map failure - taken the for-3.1 version. Conflicts: sound/soc/codecs/sgtl5000.c
2011-07-27ASoC: au1x: update db1200 machine to the new way of thingsManuel Lauss
The use of the "soc-audio" platform device is no longer en vogue, update the code to the newer, simpler way of doing things. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-07-27ASoC: au1x: remove automatic DMA device registration from PSC driversManuel Lauss
The PSC audio drivers (psc-ac97/psc-i2s) register the DMA platform_device on their own. This is frowned upon, from now on board code must register a simple pcm dma platform device for each PSC with sound duties. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-07-27ASoC: Add a DB1x00 AC97 machine driverManuel Lauss
Add a machine driver suitable for the AC97 part on the DB1000/DB1500/DB1100 boards. Run-tested on DB1500. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-07-26atomic: cleanup asm-generic atomic*.h inclusionArun Sharma
After changing all consumers of atomics to include <linux/atomic.h>, we ran into some compile time errors due to this dependency chain: linux/atomic.h -> asm/atomic.h -> asm-generic/atomic-long.h where atomic-long.h could use funcs defined later in linux/atomic.h without a prototype. This patches moves the code that includes asm-generic/atomic*.h to linux/atomic.h. Archs that need <asm-generic/atomic64.h> need to select CONFIG_GENERIC_ATOMIC64 from now on (some of them used to include it unconditionally). Compile tested on i386 and x86_64 with allnoconfig. Signed-off-by: Arun Sharma <asharma@fb.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26atomic: move atomic_add_unless to generic codeArun Sharma
This is in preparation for more generic atomic primitives based on __atomic_add_unless. Signed-off-by: Arun Sharma <asharma@fb.com> Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26atomic: use <linux/atomic.h>Arun Sharma
This allows us to move duplicated code in <asm/atomic.h> (atomic_inc_not_zero() for now) to <linux/atomic.h> Signed-off-by: Arun Sharma <asharma@fb.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (31 commits) MIPS: Close races in TLB modify handlers. MIPS: Add uasm UASM_i_SRL_SAFE macro. MIPS: RB532: Use hex_to_bin() MIPS: Enable cpu_has_clo_clz for MIPS Technologies' platforms MIPS: PowerTV: Provide cpu-feature-overrides.h MIPS: Remove pointless return statement from empty void functions. MIPS: Limit fixrange_init() to the FIXMAP region MIPS: Install handlers for software IRQs MIPS: Move FIXADDR_TOP into spaces.h MIPS: Add SYNC after cacheflush MIPS: pfn_valid() is broken on low memory HIGHMEM systems MIPS: HIGHMEM DMA on noncoherent MIPS32 processors MIPS: topdown mmap support MIPS: Remove redundant addr_limit assignment on exec. MIPS: AR7: Replace __attribute__((__packed__)) with __packed MIPS: AR7: Remove 'space before tabs' in platform.c MIPS: Lantiq: Add missing clk_enable and clk_disable functions. MIPS: AR7: Fix trailing semicolon bug in clock.c MAINTAINERS: Update MIPS entry. MIPS: BCM63xx: Remove duplicate PERF_IRQSTAT_REG definition ...
2011-07-26MIPS: Close races in TLB modify handlers.David Daney
Page table entries are made invalid by writing a zero into the the PTE slot in a page table. This creates a race condition with the TLB modify handlers when they are updating the PTE. CPU0 CPU1 Test for _PAGE_PRESENT . set to not _PAGE_PRESENT (zero) Set to _PAGE_VALID So now the page not present value (zero) is suddenly valid and user space programs have access to physical page zero. We close the race by putting the test for _PAGE_PRESENT and setting of _PAGE_VALID into an atomic LL/SC section. This requires more registers than just K0 and K1 in the handlers, so we need to save some registers to a save area and then restore them when we are done. The save area is an array of cacheline aligned structures that should not suffer cache line bouncing as they are CPU private. [ralf@linux-mips.org: Fix !defined(CONFIG_MIPS_PGD_C0_CONTEXT) build error.] Signed-off-by: David Daney <david.daney@cavium.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2577/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-26MIPS: Add uasm UASM_i_SRL_SAFE macro.David Daney
This can be used from either 32-bit or 64-bit code to generate logical right shifts of any constant amount. Signed-off-by: David Daney <david.daney@cavium.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2576/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-25Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits) fs: Merge split strings treewide: fix potentially dangerous trailing ';' in #defined values/expressions uwb: Fix misspelling of neighbourhood in comment net, netfilter: Remove redundant goto in ebt_ulog_packet trivial: don't touch files that are removed in the staging tree lib/vsprintf: replace link to Draft by final RFC number doc: Kconfig: `to be' -> `be' doc: Kconfig: Typo: square -> squared doc: Konfig: Documentation/power/{pm => apm-acpi}.txt drivers/net: static should be at beginning of declaration drivers/media: static should be at beginning of declaration drivers/i2c: static should be at beginning of declaration XTENSA: static should be at beginning of declaration SH: static should be at beginning of declaration MIPS: static should be at beginning of declaration ARM: static should be at beginning of declaration rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check Update my e-mail address PCIe ASPM: forcedly -> forcibly gma500: push through device driver tree ... Fix up trivial conflicts: - arch/arm/mach-ep93xx/dma-m2p.c (deleted) - drivers/gpio/gpio-ep93xx.c (renamed and context nearby) - drivers/net/r8169.c (just context changes)
2011-07-25MIPS: RB532: Use hex_to_bin()Andy Shevchenko
Remove custom implementation of hex_to_bin(). Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org To: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1580/ Acked-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-25MIPS: Enable cpu_has_clo_clz for MIPS Technologies' platformsShinya Kuribayashi
Enable cpu_has_clo_clz only when CONFIG_CPU_MIPS32 or CONFIG_CPU_MIPS64 is selected. This will optimize fls() and __fls() to use CLZ insn, and eventually ffs() and __ffs() as well. Malta and MIPSSim are development platforms, and need to take care of various processor configurations, release rivisions and so on, even across different MIPS ISAs. For such platforms we have to be careful, for instance, with turning on cpu_has_mips{32,64}r[12] features. As for CLZ, all MIPS32/64 processors support it, regardless of release revisions. Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com> To: David VomLehn <dvomlehn@cisco.com> To: macro@linux-mips.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1453/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-25MIPS: PowerTV: Provide cpu-feature-overrides.hDavid VomLehn
This will optimize fls() and __fls() to use CLZ throughout the kernel, and any other optimizations that depend on constant cpu_has_* values will also be used. Signed-off-by: David VomLehn <dvomlehn@cisco.com> Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com> To: David VomLehn <dvomlehn@cisco.com> To: macro@linux-mips.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1452/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-25MIPS: Remove pointless return statement from empty void functions.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> To: Sergei Shtylyov <sshtylyov@mvista.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2391/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-25MIPS: Limit fixrange_init() to the FIXMAP regionKevin Cernekee
fixrange_init() allocates page tables for all addresses higher than FIXADDR_TOP. On processors that override the default FIXADDR_TOP address of 0xfffe_0000, this can consume up to 4 pages (1 page per 4MB) for pgd's that are never used. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1980/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-25MIPS: Install handlers for software IRQsKevin Cernekee
BMIPS4350/4380/5000 CMT/SMT all use SW INT0/INT1 for inter-thread signaling. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1709/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-25MIPS: Move FIXADDR_TOP into spaces.hKevin Cernekee
Memory maps and addressing quirks are normally defined in <spaces.h>. There are already three targets that need to override FIXADDR_TOP, and others exist. This will be a cleaner approach than adding lots of ifdefs in fixmap.h . Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1573/ Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-25MIPS: Add SYNC after cacheflushKevin Cernekee
On processors with deep write buffers, it is likely that many cycles will pass between a CACHE instruction and the time the data actually gets written out to DRAM. Add a SYNC instruction to ensure that the buffers get emptied before the flush functions return. Actual problem seen in the wild: 1) dma_alloc_coherent() allocates cached memory 2) memset() is called to clear the new pages 3) dma_cache_wback_inv() is called to flush the zero data out to memory 4) dma_alloc_coherent() returns an uncached (kseg1) pointer to the freshly allocated pages 5) Caller writes data through the kseg1 pointer 6) Buffered writeback data finally gets flushed out to DRAM 7) Part of caller's data is inexplicably zeroed out This patch adds SYNC between steps 3 and 4, which fixed the problem. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-25MIPS: pfn_valid() is broken on low memory HIGHMEM systemsKevin Cernekee
pfn_valid() compares the PFN to max_mapnr: __pfn >= min_low_pfn && __pfn < max_mapnr; On HIGHMEM kernels, highend_pfn is used to set the value of max_mapnr. Unfortunately, highend_pfn is left at zero if the system does not actually have enough RAM to reach into the HIGHMEM range. This causes pfn_valid() to always return false, and when debug checks are enabled the kernel will fail catastrophically: Memory: 22432k/32768k available (2249k kernel code, 10336k reserved, 653k data, 1352k init, 0k highmem) NR_IRQS:128 kfree_debugcheck: out of range ptr 81c02900h. Kernel bug detected[#1]: Cpu 0 $ 0 : 00000000 10008400 00000034 00000000 $ 4 : 8003e160 802a0000 8003e160 00000000 $ 8 : 00000000 0000003e 00000747 00000747 ... On such a configuration, max_low_pfn should be used to set max_mapnr. This was seen on 2.6.34. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> To: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1992/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-25MIPS: HIGHMEM DMA on noncoherent MIPS32 processorsDezhong Diao
[v4: Patch applies to linux-queue.git with kmap_atomic patches: https://patchwork.kernel.org/patch/189932/ https://patchwork.kernel.org/patch/194552/ https://patchwork.kernel.org/patch/189912/ ] The MIPS DMA coherency functions do not work properly (i.e. kernel oops) when HIGHMEM pages are passed in as arguments. Use kmap_atomic() to temporarily map high pages for cache maintenance operations. Tested on a 2.6.36-rc7 1GB HIGHMEM SMP no-alias system. Signed-off-by: Dezhong Diao <dediao@cisco.com> Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Cc: Dezhong Diao <dediao@cisco.com> Cc: David Daney <ddaney@caviumnetworks.com> Cc: David VomLehn <dvomlehn@cisco.com> Cc: Sergei Shtylyov <sshtylyov@mvista.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1695/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-25MIPS: topdown mmap supportJian Peng
This patch introduced topdown mmap support in user process address space allocation policy. Recently, we ran some large applications that use mmap heavily and lead to OOM due to inflexible mmap allocation policy on MIPS32. Since most other major archs supported it for years, it is reasonable to follow the trend and reduce the pain of porting applications. Due to cache aliasing concern, arch_get_unmapped_area_topdown() and other helper functions are implemented in arch/mips/kernel/syscall.c. Signed-off-by: Jian Peng <jipeng2005@gmail.com> Cc: David Daney <ddaney@caviumnetworks.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2389/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-25MIPS: Remove redundant addr_limit assignment on exec.Mathias Krause
The address limit is already set in flush_old_exec() via set_fs(USER_DS) so this assignment is redundant. [ralf@linux-mips.org: also see dac853ae89043f1b7752875300faf614de43c74b for further explanation.] Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/2466/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-25MIPS: AR7: Replace __attribute__((__packed__)) with __packedFlorian Fainelli
Signed-off-by: Florian Fainelli <florian@openwrt.org> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2491/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org
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