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* crypto: skcipher - Fix skcipher_dequeue_givcrypt NULL testHerbert Xu2009-08-293-4/+12
| | | | | | | | | | | | | | As struct skcipher_givcrypt_request includes struct crypto_request at a non-zero offset, testing for NULL after converting the pointer returned by crypto_dequeue_request does not work. This can result in IPsec crashes when the queue is depleted. This patch fixes it by doing the pointer conversion only when the return value is non-NULL. In particular, we create a new function __crypto_dequeue_request that does the pointer conversion. Reported-by: Brad Bosch <bradbosch@comcast.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: aes-ni - Remove CRYPTO_TFM_REQ_MAY_SLEEP from fpu templateHuang Ying2009-06-181-2/+2
| | | | | | | | kernel_fpu_begin/end used preempt_disable/enable, so sleep should be prevented between kernel_fpu_begin/end. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: aes-ni - Do not sleep when using the FPUHuang Ying2009-06-181-0/+4
| | | | | | | | | | Because AES-NI instructions will touch XMM state, corresponding code must be enclosed within kernel_fpu_begin/end, which used preempt_disable/enable. So sleep should be prevented between kernel_fpu_begin/end. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: aes-ni - Fix cbc mode IV savingHuang Ying2009-06-181-2/+3
| | | | | | | | Original implementation of aesni_cbc_dec do not save IV if input length % 4 == 0. This will make decryption of next block failed. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: padlock-aes - work around Nano CPU errata in CBC modeChuck Ebbert2009-06-181-18/+65
| | | | | | | | | Extend previous workarounds for the prefetch bug to cover CBC mode, clean up the code a bit. Signed-off-by: Chuck Ebbert <cebbert@redhat.com> Acked-by: Harald Welte <HaraldWelte@viatech.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: padlock-aes - work around Nano CPU errata in ECB modeChuck Ebbert2009-06-181-35/+46
| | | | | | | | | | | The VIA Nano processor has a bug that makes it prefetch extra data during encryption operations, causing spurious page faults. Extend existing workarounds for ECB mode to copy the data to an temporary buffer to avoid the problem. Signed-off-by: Chuck Ebbert <cebbert@redhat.com> Acked-by: Harald Welte <HaraldWelte@viatech.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* ia64: Fix resource assignment for root bussesMatthew Wilcox2009-06-171-2/+2
| | | | | | | | | | | ia64 was assigning resources to root busses after allocations had been made for child busses. Calling pcibios_setup_root_windows() from pcibios_fixup_bus() solves this problem by assigning the resources to the root bus before child busses are scanned. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Tested-by: Andrew Patterson <andrew.patterson@hp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86: Use pci_claim_resourceMatthew Wilcox2009-06-171-10/+7
| | | | | | | | Instead of open-coding pci_find_parent_resource and request_resource, just call pci_claim_resource. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Delete pcibios_select_rootMatthew Wilcox2009-06-1711-132/+0
| | | | | | | | This function was only used by pci_claim_resource(), and the last commit deleted that use. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Fix pci_claim_resourceMatthew Wilcox2009-06-171-2/+2
| | | | | | | | | | Instead of starting from the iomem or ioport roots, start from the parent bus' resources. This fixes a bug where child resources would appear above their parents resources if they had the same size. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Tested-by: Andrew Patterson <andrew.patterson@hp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'release' of ↵Linus Torvalds2009-06-1749-231/+238
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Convert ia64 to use int-ll64.h [IA64] Fix build error in paravirt_patchlist.c [IA64] ia64 does not need umount2() syscall [IA64] hook up new rt_tgsigqueueinfo syscall [IA64] msi_ia64.c dmar_msi_type should be static [IA64] remove obsolete hw_interrupt_type [IA64] remove obsolete irq_desc_t typedef [IA64] remove obsolete no_irq_type [IA64] unexport fpswa.h
| * Pull for-2.6.31 into releaseTony Luck2009-06-1748-231/+236
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| | * [IA64] Convert ia64 to use int-ll64.hMatthew Wilcox2009-06-1736-209/+212
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is generally agreed that it would be beneficial for u64 to be an unsigned long long on all architectures. ia64 (in common with several other 64-bit architectures) currently uses unsigned long. Migrating piecemeal is too painful; this giant patch fixes all compilation warnings and errors that come as a result of switching to use int-ll64.h. Note that userspace will still see __u64 defined as unsigned long. This is important as it affects C++ name mangling. [Updated by Tony Luck to change efi.h:efi_freemem_callback_t to use u64 for start/end rather than unsigned long] Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] ia64 does not need umount2() syscallTony Luck2009-06-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ia64 doesn't have old and new versions of the umount system call. It just has the new version. Fixes this build warning: <stdin>:395:2: warning: #warning syscall umount2 not implemented Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] hook up new rt_tgsigqueueinfo syscallTony Luck2009-06-162-1/+3
| | | | | | | | | | | | | | | | | | Assign syscall #1321 for rt_tgsigqueueinfo. Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] msi_ia64.c dmar_msi_type should be staticJaswinder Singh Rajput2009-06-151-1/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] remove obsolete hw_interrupt_typeThomas Gleixner2009-06-154-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The defines and typedefs (hw_interrupt_type, no_irq_type, irq_desc_t) have been kept around for migration reasons. After more than two years it's time to remove them finally. This patch cleans up one of the remaining users. When all such patches hit mainline we can remove the defines and typedefs finally. Impact: cleanup Convert the last remaining users to struct irq_chip and remove the define. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] remove obsolete irq_desc_t typedefThomas Gleixner2009-06-159-12/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The defines and typedefs (hw_interrupt_type, no_irq_type, irq_desc_t) have been kept around for migration reasons. After more than two years it's time to remove them finally. This patch cleans up one of the remaining users. When all such patches hit mainline we can remove the defines and typedefs finally. Impact: cleanup Convert the last remaining users and remove the typedef. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] remove obsolete no_irq_typeThomas Gleixner2009-06-153-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The defines and typedefs (hw_interrupt_type, no_irq_type, irq_desc_t) have been kept around for migration reasons. After more than two years it's time to remove them finally. This patch cleans up one of the remaining users. When all such patches hit mainline we can remove the defines and typedefs finally. Impact: cleanup convert the last remaining users to no_irq_chip Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] unexport fpswa.hSam Ravnborg2009-06-151-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | fpswa.h is not relevant for userspace, so do not export it. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | [IA64] Fix build error in paravirt_patchlist.cJes Sorensen2009-06-171-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Andrew cleaned up some #include tangles in: commit 0d9c25dde878a636ee9a9b53923569171bf9a55b headers: move module_bug_finalize()/module_bug_cleanup() definitions into module.h which resulted in this build error for ia64: CC arch/ia64/kernel/paravirt_patchlist.o arch/ia64/kernel/paravirt_patchlist.c:43: error: expected '=', ',', ';', 'asm' or '__attribute__' before '__initdata' arch/ia64/kernel/paravirt_patchlist.c:54: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'paravirt_get_gate_patchlist' arch/ia64/kernel/paravirt_patchlist.c:76: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'paravirt_get_gate_section' make[1]: *** [arch/ia64/kernel/paravirt_patchlist.o] Error 1 The problem was that paravirt_patchlist.c was relying on some of the nested includes (specifically that linux/bug.h included linux/module.h Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | Merge branch 'for-next' of ↵Linus Torvalds2009-06-1719-238/+2219
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: mfd: early init for MFD running regulators mfd: fix tmio related warnings mfd: asic3: enable SD/SDIO cell mfd: asic3: enable DS1WM cell mfd: asic3: remove SD/SDIO controller register definitions mfd: asic3: use resource_size macro instead of local variable mfd: add ASIC3 IRQ numbers mfd: asic3: add clock handling for MFD cells mfd: asic3: add asic3_set_register common operation mfd: Fix Kconfig help text for WM8350 mfd: add PCAP driver mfd: add U300 AB3100 core support drivers/mfd: remove obsolete irq_desc_t typedef mfd/pcf50633-gpio.c: add MODULE_LICENSE mfd: Mark WM8350 mask revision as readable to match silicon mfd: Mark clocks_init as non-init in twl4030-core.c mfd: Correct readability of WM8350 register 227
| * | | mfd: early init for MFD running regulatorsSamuel Ortiz2009-06-173-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For MFDs running regulator cores, we really want them to be brought up early during boot. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Mike Rapoport <mike@compulab.co.il>
| * | | mfd: fix tmio related warningsSamuel Ortiz2009-06-174-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can not have .driver_data as const since platform_set_drvdata() doesnt take a const. The hclk mmc_data field can be const though. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: asic3: enable SD/SDIO cellPhilipp Zabel2009-06-171-1/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This enables the ASIC3's SD/SDIO MFD cell, supported by the tmio_mmc driver. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: asic3: enable DS1WM cellPhilipp Zabel2009-06-172-0/+100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This enables the ASIC3's DS1WM MFD cell, supported by the ds1wm driver. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: asic3: remove SD/SDIO controller register definitionsPhilipp Zabel2009-06-171-216/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Only the base addresses remain, as they are needed to set up the IOMEM resources. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: asic3: use resource_size macro instead of local variablePhilipp Zabel2009-06-171-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This should make the code a little bit easier to read. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: add ASIC3 IRQ numbersPhilipp Zabel2009-06-171-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | IRQ number definitions for PWM, LED, SPI and OWM (ds1wm). Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: asic3: add clock handling for MFD cellsPhilipp Zabel2009-06-171-0/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since ASIC3 has to work on both PXA and S3C and since their struct clk implementations differ, we can't register out clocks with the clkdev mechanism (yet?). For now we have to keep clock handling internal to this driver and enable/disable the clocks via the mfd_cell->enable/disable functions. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: asic3: add asic3_set_register common operationPhilipp Zabel2009-06-172-5/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Used to configure single bits of the SDHWCTRL_SDCONF and EXTCF_RESET/SELECT registers needed for DS1WM, MMC/SDIO and PCMCIA functionality. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: Fix Kconfig help text for WM8350Mark Brown2009-06-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | More with the grammar. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: add PCAP driverDaniel Ribeiro2009-06-174-0/+770
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PCAP Asic as present on EZX phones is a multi function device with voltage regulators, ADC, touch screen controller, RTC, USB transceiver, leds controller, and audio codec. It has two SPI ports, typically one is connected to the application processor and another to the baseband, this driver provides read/write functions to its registers, irq demultiplexer and ADC queueing/abstraction. This chip is used on a lot of Motorola phones, it was manufactured by TI as a custom product with the name PTWL93017, later this design evolved into the ATLAS PMIC from Freescale (MC13783). Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: add U300 AB3100 core supportLinus Walleij2009-06-174-1/+1110
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a core driver for the AB3100 mixed-signal circuit found in the ST-Ericsson U300 series platforms. This driver is a singleton proxy for all accesses to the AB3100 sub-drivers which will be merged on top of this one, RTC, regulators, battery and system power control, vibrator, LEDs, and an ALSA codec. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Reviewed-by: Mike Rapoport <mike@compulab.co.il> Reviewed-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | drivers/mfd: remove obsolete irq_desc_t typedefThomas Gleixner2009-06-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The defines and typedefs (hw_interrupt_type, no_irq_type, irq_desc_t) have been kept around for migration reasons. After more than two years it's time to remove them finally. This patch cleans up one of the remaining users. When all such patches hit mainline we can remove the defines and typedefs finally. Impact: cleanup Convert the last remaining users and remove the typedef. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd/pcf50633-gpio.c: add MODULE_LICENSEAdrian Bunk2009-06-171-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the missing MODULE_LICENSE("GPL"). Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Balaji Rao <balajirrao@openmoko.org> Cc: Andy Green <andy@openmoko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: Mark WM8350 mask revision as readable to match siliconMark Brown2009-06-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | No impact unless someone has written additional kernel code. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: Mark clocks_init as non-init in twl4030-core.cRakib Mullick2009-06-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: Fix section mismatch. clocks_init() has been called from twl4030_probe() which is a non-init function. Since probing can be done anytime so clocks_init will be called anytime too. So we mark clock_init() as non-init. LD drivers/mfd/built-in.o WARNING: drivers/mfd/built-in.o(.text+0x8dd9): Section mismatch in reference from the function twl4030_probe() to the function .init.text:clocks_init() The function twl4030_probe() references the function __init clocks_init(). This is often because twl4030_probe lacks a __init annotation or the annotation of clocks_init is wrong. Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: Correct readability of WM8350 register 227Mark Brown2009-06-171-1/+1
| |/ / | | | | | | | | | | | | | | | | | | | | | This includes the USB current limit status override which is used in the power management driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* | | Merge branch 'kmemleak' of git://linux-arm.org/linux-2.6Linus Torvalds2009-06-171-12/+15
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | * 'kmemleak' of git://linux-arm.org/linux-2.6: kmemleak: Fix some typos in comments kmemleak: Rename kmemleak_panic to kmemleak_stop kmemleak: Only use GFP_KERNEL|GFP_ATOMIC for the internal allocations
| * | | kmemleak: Fix some typos in commentsCatalin Marinas2009-06-171-4/+4
| | | | | | | | | | | | | | | | Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| * | | kmemleak: Rename kmemleak_panic to kmemleak_stopCatalin Marinas2009-06-171-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This is to avoid the confusion created by the "panic" word. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
| * | | kmemleak: Only use GFP_KERNEL|GFP_ATOMIC for the internal allocationsCatalin Marinas2009-06-171-2/+5
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kmemleak allocates memory for pointer tracking and it tries to avoid using GFP_ATOMIC if the caller doesn't require it. However other gfp flags may be passed by the caller which aren't required by kmemleak. This patch filters the gfp flags so that only GFP_KERNEL | GFP_ATOMIC are used. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
* | | Merge branch 'fixes' of ↵Linus Torvalds2009-06-1711-287/+235
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] cpumask: new cpumask operators for arch/x86/kernel/cpu/cpufreq/powernow-k8.c [CPUFREQ] cpumask: avoid playing with cpus_allowed in powernow-k8.c [CPUFREQ] cpumask: avoid cpumask games in arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c [CPUFREQ] cpumask: avoid playing with cpus_allowed in speedstep-ich.c [CPUFREQ] powernow-k8: get drv data for correct CPU [CPUFREQ] powernow-k8: read P-state from HW [CPUFREQ] reduce scope of ACPI_PSS_BIOS_BUG_MSG[] [CPUFREQ] Clean up convoluted code in arch/x86/kernel/tsc.c:time_cpufreq_notifier() [CPUFREQ] minor correction to cpu-freq documentation [CPUFREQ] powernow-k8.c: mess cleanup [CPUFREQ] Only set sampling_rate_max deprecated, sampling_rate_min is useful [CPUFREQ] powernow-k8: Set transition latency to 1 if ACPI tables export 0 [CPUFREQ] ondemand: Uncouple minimal sampling rate from HZ in NO_HZ case
| * | | [CPUFREQ] cpumask: new cpumask operators for ↵Rusty Russell2009-06-152-15/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/x86/kernel/cpu/cpufreq/powernow-k8.c Remove all old-style cpumask operators, and cpumask_t. Also: get rid of the unused define_siblings function. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Mark Langsdorf <mark.langsdorf@amd.com> Tested-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
| * | | [CPUFREQ] cpumask: avoid playing with cpus_allowed in powernow-k8.cRusty Russell2009-06-151-58/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cpumask: avoid playing with cpus_allowed in powernow-k8.c It's generally a very bad idea to mug some process's cpumask: it could legitimately and reasonably be changed by root, which could break us (if done before our code) or them (if we restore the wrong value). I did not replace powernowk8_target; it needs fixing, but it grabs a mutex (so no smp_call_function_single here) but Mark points out it can be called multiple times per second, so work_on_cpu is too heavy. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> To: cpufreq@vger.kernel.org Acked-by: Mark Langsdorf <mark.langsdorf@amd.com> Tested-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
| * | | [CPUFREQ] cpumask: avoid cpumask games in ↵Rusty Russell2009-06-151-43/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c Impact: don't play with current's cpumask It's generally a very bad idea to mug some process's cpumask: it could legitimately and reasonably be changed by root, which could break us (if done before our code) or them (if we restore the wrong value). Use rdmsr_on_cpu and wrmsr_on_cpu instead. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> To: cpufreq@vger.kernel.org Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Dave Jones <davej@redhat.com>
| * | | [CPUFREQ] cpumask: avoid playing with cpus_allowed in speedstep-ich.cRusty Russell2009-06-152-39/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: don't play with current's cpumask It's generally a very bad idea to mug some process's cpumask: it could legitimately and reasonably be changed by root, which could break us (if done before our code) or them (if we restore the wrong value). We use smp_call_function_single: this had the advantage of being more efficient, too. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> To: cpufreq@vger.kernel.org Cc: Dominik Brodowski <linux@brodo.de> Signed-off-by: Dave Jones <davej@redhat.com>
| * | | [CPUFREQ] powernow-k8: get drv data for correct CPUNaga Chumbalkar2009-06-151-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make powernowk8_get() similar to powernowk8_target() and powernowk8_verify() in the way it obtains "powernow_data" for a given CPU. Cc: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: Langsdorf, Mark <mark.langsdorf@amd.com> Cc: Thomas Renninger <trenn@suse.de> Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com> Reviewed-by: Andreas Herrmann <andreas.herrmann3@amd.com> Tested-by: Andreas Herrmann <andreas.herrmann3@amd.com> Acked-by: Langsdorf, Mark <mark.langsdorf@amd.com> Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Dave Jones <davej@redhat.com>
| * | | [CPUFREQ] powernow-k8: read P-state from HWNaga Chumbalkar2009-06-151-14/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By definition, "cpuinfo_cur_freq" should report the value from HW. So, don't depend on the cached value. Instead read P-state directly from HW, while taking into account the erratum 311 workaround for Fam 11h processors. Cc: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: Langsdorf, Mark <mark.langsdorf@amd.com> Cc: Thomas Renninger <trenn@suse.de> Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com> Reviewed-by: Andreas Herrmann <andreas.herrmann3@amd.com> Tested-by: Andreas Herrmann <andreas.herrmann3@amd.com> Acked-by: Langsdorf, Mark <mark.langsdorf@amd.com> Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Dave Jones <davej@redhat.com>
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