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* ACPI : Create "idle=nomwait" bootparamZhao Yakui2008-07-162-0/+13
| | | | | | | | | | | | | | | | | | | | | | "idle=nomwait" disables the use of the MWAIT instruction from both C1 (C1_FFH) and deeper (C2C3_FFH) C-states. When MWAIT is unavailable, the BIOS and OS generally negotiate to use the HALT instruction for C1, and use IO accesses for deeper C-states. This option is useful for power and performance comparisons, and also to work around BIOS bugs where broken MWAIT support is advertised. http://bugzilla.kernel.org/show_bug.cgi?id=10807 http://bugzilla.kernel.org/show_bug.cgi?id=10914 Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Li Shaohua <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
* ACPI: Create "idle=halt" bootparamZhao Yakui2008-07-162-1/+18
| | | | | | | | | | | | | | "idle=halt" limits the idle loop to using the halt instruction. No MWAIT, no IO accesses, no C-states deeper than C1. If something is broken in the idle code, "idle=halt" is a less severe workaround than "idle=poll" which disables all power savings. Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
* ACPI: Disable the C2C3_FFH access mode HW has no MWAIT supportZhao Yakui2008-07-161-0/+6
| | | | | | | | | | | | | | | | 991528d7348667924176f3e29addea0675298944 (ACPI: Processor native C-states using MWAIT) started passing C2C3_FFH to _PDC to tell the BIOS that Linux supports MWAIT for deep C-states. However, we should first double check with the hardware that it actually supports MWAIT before potentially exposing a BIOS bug of an MWAIT _CST on HW that doesn't support MWAIT. Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Li Shaohua <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
* ACPICA: Update DMAR and SRAT table definitionsBob Moore2008-07-161-2/+1
| | | | | | | | | Synchronized tables with current specifications. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
* powerpc/ep8248e: Fix compile problem if !CONFIG_FS_ENETKumar Gala2008-07-161-0/+4
| | | | | | | | | | | If we don't enable FS_ENET we get build issues: arch/powerpc/platforms/built-in.o: In function `ep8248e_mdio_probe': arch/powerpc/platforms/82xx/ep8248e.c:129: undefined reference to `alloc_mdio_bitbang' arch/powerpc/platforms/82xx/ep8248e.c:143: undefined reference to `mdiobus_register' Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge commit 'origin/master'Benjamin Herrenschmidt2008-07-16279-16329/+4126
|\ | | | | | | | | | | | | | | Manual merge of: arch/powerpc/Kconfig arch/powerpc/kernel/stacktrace.c arch/powerpc/mm/slice.c arch/ppc/kernel/smp.c
| * Merge branch 'x86/urgent' of ↵Linus Torvalds2008-07-151-0/+2
| |\ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: fix TSC build error on 32bit
| | * x86: fix TSC build error on 32bitThomas Gleixner2008-07-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dave Hansen reported a build error on 32bit which went unnoticed as newer gcc versions seem to optimize unused static functions away before compiling them. Make vread_tsc() depend on CONFIG_X86_64 Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2008-07-15174-14619/+3657
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (54 commits) [MIPS] Remove mips_machtype for LASAT machines [MIPS] Remove mips_machtype from EMMA2RH machines [MIPS] Remove mips_machtype from ARC based machines [MIPS] MTX-1 flash partition setup move to platform devices registration [MIPS] TXx9: cleanup and fix some sparse warnings [MIPS] TXx9: rename asm-mips/mach-jmr3927 to asm-mips/mach-tx39xx [MIPS] remove machtype for group Toshiba [MIPS] separate rbtx4927_time_init() and rbtx4937_time_init() [MIPS] separate rbtx4927_arch_init() and rbtx4937_arch_init() [MIPS] txx9_cpu_clock setup move to rbtx4927_time_init() [MIPS] txx9_board_vec set directly without mips_machtype [MIPS] IP22: Add platform device for Indy volume buttons [MIPS] cmbvr4133: Remove support [MIPS] remove wrppmc_machine_power_off() [MIPS] replace inline assembler to cpu_wait() [MIPS] IP22/28: Add platform devices for HAL2 [MIPS] TXx9: Update and merge defconfigs [MIPS] TXx9: Make single kernel can support multiple boards [MIPS] TXx9: Update defconfigs [MIPS] TXx9: Reorganize PCI code ...
| | * | [MIPS] Remove mips_machtype for LASAT machinesThomas Bogendoerfer2008-07-156-35/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the LASAT part of the mips_machtype removal. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] Remove mips_machtype from EMMA2RH machinesThomas Bogendoerfer2008-07-151-8/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the EMMA2RH part of the mips_machtype removal. [Ralf: Fixed to the #error statements] Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] Remove mips_machtype from ARC based machinesThomas Bogendoerfer2008-07-152-13/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the ARC part of the mips_machtype removal. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] MTX-1 flash partition setup move to platform devices registrationYoichi Yuasa2008-07-151-1/+50
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Acked-By: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] TXx9: cleanup and fix some sparse warningsAtsushi Nemoto2008-07-154-27/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Do not return void value * Make some functions static * Do not include unnecessary bootinfo.h Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] TXx9: rename asm-mips/mach-jmr3927 to asm-mips/mach-tx39xxAtsushi Nemoto2008-07-153-3/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename mach-jmr3927 directory to more proper name to make adding other platforms easier. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] remove machtype for group ToshibaYoichi Yuasa2008-07-153-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] separate rbtx4927_time_init() and rbtx4937_time_init()Yoichi Yuasa2008-07-151-33/+45
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] separate rbtx4927_arch_init() and rbtx4937_arch_init()Yoichi Yuasa2008-07-151-5/+8
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] txx9_cpu_clock setup move to rbtx4927_time_init()Yoichi Yuasa2008-07-151-49/+49
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] txx9_board_vec set directly without mips_machtypeYoichi Yuasa2008-07-151-26/+8
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] IP22: Add platform device for Indy volume buttonsThomas Bogendoerfer2008-07-152-49/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Create platform device for Indy volume buttons and remove button handling from ip22-reset.c Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] cmbvr4133: Remove supportYoichi Yuasa2008-07-159-675/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | It cannot be built for a long time and nobody maintains it. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] remove wrppmc_machine_power_off()Yoichi Yuasa2008-07-152-7/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | It can be replace wrppmc_machine_halt(). Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] replace inline assembler to cpu_wait()Yoichi Yuasa2008-07-151-5/+4
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] IP22/28: Add platform devices for HAL2Thomas Bogendoerfer2008-07-152-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Create platform devices for hal2 and add option for selecting HAL2 alsa driver. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] TXx9: Update and merge defconfigsAtsushi Nemoto2008-07-153-708/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge rbhma4200(RBTX4927/37) and rbhma4500(RBTX4938) defconfig into single rbtx49xx defconfig. And jmr3927 defconfig is also updated. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] TXx9: Make single kernel can support multiple boardsAtsushi Nemoto2008-07-1523-536/+470
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make single kernel can be used on RBTX4927/37/38. Also make some SoC-specific code independent from board-specific code. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] TXx9: Update defconfigsAtsushi Nemoto2008-07-153-189/+340
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] TXx9: Reorganize PCI codeAtsushi Nemoto2008-07-1520-1630/+1397
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Split out PCIC dependent code and SoC dependent code from board dependent code. Now TX4927 PCIC code is independent from TX4927/TX4938 SoC code. Also fix some build problems on CONFIG_PCI=n. As a bonus, "FPCIB0 Backplane Support" is available for all TX39/TX49 boards and PCI66 support is available for all TX49 boards. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] TXx9: Reorganize codeAtsushi Nemoto2008-07-1540-185/+77
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move arch/mips/{jmr3927,tx4927,tx4938} into arch/mips/txx9/ tree. This will help more code sharing and maintainance. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] txx9: Make gpio_txx9 entirely spinlock-safeAtsushi Nemoto2008-07-151-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TXx9 GPIO set/get routines are spinlock-safe. This patch make gpio_direction_{input,output} routines also spinlock-safe so that they can be used during early board setup. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] Malta: Cleanup organization of code into directories.Ralf Baechle2008-07-1519-59/+23
| | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] Remove always true ifdef conditions.Ralf Baechle2008-07-155-19/+2
| | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] MSC01: Cleanup configuration.Ralf Baechle2008-07-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | This shouldn't depend on CONFIG_MIPS_BOARDS_GEN which is about to go away. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] Remove impossible ifdef and code wrapped by it.Ralf Baechle2008-07-151-13/+0
| | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] SEAD: Remove support code.Ralf Baechle2008-07-1551-953/+2
| | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] Atlas: Remove support code.Ralf Baechle2008-07-1555-2159/+2
| | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] Enable -ffunction-sections sections.Ralf Baechle2008-07-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -ffunction-sections serves as a workaround for the problems caused by the limited branch range in some inline assembler fragments for very large compilation units. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] Bigsur: Make defconfig a bit more useful.Ralf Baechle2008-07-151-58/+104
| | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] Replace use of print_symbol with new %sP pointer format.Ralf Baechle2008-07-153-17/+12
| | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] rbtx4927: misc cleanupsAtsushi Nemoto2008-07-157-553/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Merge tx4927_pci.h into tx4927.h * Kill (broken) external PCI clock frequency reporting * Kill unnecessary wbflush() * Kill unnecessary includes * Kill debug garbages Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] Declare some pci variables in header fileAtsushi Nemoto2008-07-154-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Declare pci_probe_only, etc. in asm-mips/pci.h file. This will fix some sparse warnings. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] IP32: Add platform devices for audio and volume buttonThomas Bogendoerfer2008-07-151-0/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Create platform devices for audio and volume button driver. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] IP28: switch to "normal" mode after PROM no longer neededThomas Bogendoerfer2008-07-151-0/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SGI-IP28 is running in so called slow mode, when kernel is started from the PROM. PROM calls must be done in slow mode otherwise the PROM will issue an error. To get better memory performance we now switch to normal mode, when the PROM is no longer needed. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] Add an appropriate header into display.cDmitri Vorobiev2008-07-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following errors were caught by sparse: >>>>>>>>>>> arch/mips/mips-boards/generic/display.c:30:6: warning: symbol 'mips_display_message' was not declared. Should it be static? arch/mips/mips-boards/generic/display.c:58:6: warning: symbol 'mips_scroll_message' was not declared. Should it be static? >>>>>>>>>>> This patch includes the asm/mips-boards/prom.h header file into arch/mips/mips-boards/generic/display.c. This adds the needed function declarations, and the errors are gone. Compile-tested using defconfigs for Malta, Atlas and SEAD boards. Runtime test was successfully performed by booting a Malta 4Kc board up to the shell prompt. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] Make gcmp_probe() staticDmitri Vorobiev2008-07-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The gcmp_probe() function is needlessly defined global, and this patch makes it static. Tested by booting a Malta 4Kc board up to the shell prompt. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] A few cleanups in malta_int.cDmitri Vorobiev2008-07-151-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Both the fill_ipi_map() routine and the gic_intr_map array defined in arch/mips/mips-boards/malta/malta_int.c are not used outside of the latter file. Thus, these objects can become static. Moreover, these two objects are used by the MT code only, which is why this patch adds the appropriate ifdef. While at it, this patch removes an unnecessary preprocessing macro in favor of the commonly used ARRAY_SIZE. Successfully tested using a Qemu-emulated Malta board for both SMP and UP kernels. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] Namespace clean-up in arch/mips/pci/pci.cDmitri Vorobiev2008-07-151-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following symbols hose_head hose_tail are needlessly defined global in arch/mips/pci/pci.c, and this patch makes them static. The variable pci_isa_hose is not used, and is removed by this patch. Spotted by namespacecheck. Tested by booting a Malta 4Kc board up to the shell prompt. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] i8253: make the pit_clockevent variable staticDmitri Vorobiev2008-07-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The pit_clockevent symbol is needlessly defined global. This patch makes that variable static. Spotted by sparse. Compile-tested using Malta defconfig. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | [MIPS] Enable FAST-20 for onboard scsiThomas Bogendoerfer2008-07-151-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Both onboard controller of the O2 support FAST-20 transfer speeds, but the bit, which signals that to the aic driver, isn't set. Instead of adding detection code to the scsi driver, we just fake the missing bit in the PCI config space of the scsi chips. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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