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2007-07-13[CPUFREQ] Fix typos in powernow-k8 printk's.Dave Jones
Based on a patch from Joachim which didn't apply, so I fixed it up by hand, and also corrected the surrounding indentation a little. Signed-off-by: Joachim.Deguara <joachim.deguara@amd.com> Acked-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
2007-07-13[CPUFREQ] powernow-k8 compile fix.Andrew Morton
Make it compile on UP. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Jones <davej@redhat.com>
2007-07-13[CPUFREQ] the overdue removal of X86_SPEEDSTEP_CENTRINO_ACPIAdrian Bunk
This patch contains the overdue removal of X86_SPEEDSTEP_CENTRINO_ACPI. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
2007-07-13[CPUFREQ] Longhaul - Option to disable ACPI C3 supportRafał Bilski
On some motherboards ACPI C3 is available, but it isn't causing frequency transition on VIA Nehemiah. Longhaul wasn't working at all earlier, but due to scaling_cur_speed returning true CPU frequency now, it looks like CPU is getting stuck at highest frequency since 2.6.21. I didn't find a reason. Halt is causing frequency transition. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
2007-07-12Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreqLinus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Fix sysfs_create_file return value handling [CPUFREQ] ondemand: fix tickless accounting and software coordination bug [CPUFREQ] ondemand: add a check to avoid negative load calculation [CPUFREQ] Keep userspace governor quiet when it is not being used [CPUFREQ] Longhaul - Proper register access [CPUFREQ] Kconfig powernow-k8 driver should depend on ACPI P-States driver [CPUFREQ] Longhaul - Replace ACPI functions with direct I/O [CPUFREQ] Longhaul - Remove duplicate multipliers [CPUFREQ] Longhaul - Embedded "conservative" [CPUFREQ] acpi-cpufreq: Proper ReadModifyWrite of PERF_CTL MSR [CPUFREQ] check return value of sysfs_create_file [CPUFREQ] Longhaul - Check ACPI "BM DMA in progress" bit [CPUFREQ] Longhaul - Move old_ratio to correct place [CPUFREQ] Longhaul - VT8237 support [CPUFREQ] Longhaul - Use all kinds of support [CPUFREQ] powernow-k8: clarify number of cores.
2007-07-12Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (34 commits) PCI: Only build PCI syscalls on architectures that want them PCI: limit pci_get_bus_and_slot to domain 0 PCI: hotplug: acpiphp: avoid acpiphp "cannot get bridge info" PCI hotplug failure PCI: hotplug: acpiphp: remove hot plug parameter write to PCI host bridge PCI: hotplug: acpiphp: fix slot poweroff problem on systems without _PS3 PCI: hotplug: pciehp: wait for 1 second after power off slot PCI: pci_set_power_state(): check for PM capabilities earlier PCI: cpci_hotplug: Convert to use the kthread API PCI: add pci_try_set_mwi PCI: pcie: remove SPIN_LOCK_UNLOCKED PCI: ROUND_UP macro cleanup in drivers/pci PCI: remove pci_dac_dma_... APIs PCI: pci-x-pci-express-read-control-interfaces cleanups PCI: Fix typo in include/linux/pci.h PCI: pci_ids, remove double or more empty lines PCI: pci_ids, add atheros and 3com_2 vendors PCI: pci_ids, reorder some entries PCI: i386: traps, change VENDOR to DEVICE PCI: ATM: lanai, change VENDOR to DEVICE PCI: Change all drivers to use pci_device->revision ...
2007-07-12Use a new CPU feature word to cover features that are spread aroundVenki Pallipadi
Some Intel features are spread around in different CPUID leafs like 0x5, 0x6 and 0xA. Make this feature detection code common across i386 and x86_64. Display Intel Dynamic Acceleration feature in /proc/cpuinfo. This feature will be enabled automatically by current acpi-cpufreq driver. Refer to Intel Software Developer's Manual for more details about the feature. Thanks to hpa (H Peter Anvin) for the making the actual code detecting the scattered features data-driven. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-12Unify the CPU features vectors between i386 and x86-64H. Peter Anvin
Unify the handling of the CPU features vectors between i386 and x86-64. This also adopts the collapsing of features which are required at compile-time into constant tests from x86-64 to i386. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-11PCI: Change all drivers to use pci_device->revisionAuke Kok
Instead of all drivers reading pci config space to get the revision ID, they can now use the pci_device->revision member. This exposes some issues where drivers where reading a word or a dword for the revision number, and adding useless error-handling around the read. Some drivers even just read it for no purpose of all. In devices where the revision ID is being copied over and used in what appears to be the equivalent of hotpath, I have left the copy code and the cached copy as not to influence the driver's performance. Compile tested with make all{yes,mod}config on x86_64 and i386. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-06MTRR: Fix race causing set_mtrr to go into infinite loopLoic Prylli
Processors synchronization in set_mtrr requires the .gate field to be set after .count field is properly initialized. Without an explicit barrier, the compiler was reordering those memory stores. That was sometimes causing a processor (in ipi_handler) to see the .gate change and decrement .count before the latter is set by set_mtrr() (which then hangs in a infinite loop with irqs disabled). Signed-off-by: Loic Prylli <loic@myri.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-03Revert perfctr reservation to 2.6.21 stateAndi Kleen
With this change it works again when the nmi watchdog is disabled. Signed-off-by: Andi Kleen <ak@suse.de> Cc: Björn Steinbrink <B.Steinbrink@gmx.de> Cc: Stephane Eranian <eranian@hpl.hp.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-01i386: mtrr crash fixAndrew Morton
Commit 3ebad5905609476a4ff1151a66b21d9794009961 ("[PATCH] x86: Save and restore the fixed-range MTRRs of the BSP when suspending") added mtrr operations without verifying that the CPU has MTRRs. Crashes transmeta CPUs. Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: <linux@horizon.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-01i386: remove bogus mtrr range checkLinus Torvalds
Commit 9215da33209b861b01c51382254b178a3fe92a30 "fixed" the MTRR range check to not allow any MTRR's under the 1MB mark (since that's where the fixed MTRR's are active). However, that was totally bogus, since it's normal (and almost required) to have a large variable MTRR that starts at 0, and covers some large percentage of the whole RAM, and then using the fixed MTRR's to override that large MTRR to handle the special ISA hole in the 640k-1M region. The old check was bogus too (checking that no variable MTRR is used that is entirely under the 1MB range), but at least it wasn't actively detrimental, because no sane situation would ever trigger such MTRR usage in the first place. That said, the whole notion of not allowing variable MTRR's in the low 1MB is just stupid, so rather than revert the commit, this just removes the whole sad and unnecessary check entirely. Cc: Jan Beulich <jbeulich@novell.com> Cc: Andi Kleen <ak@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Tested-by: Luca Palermo <darkmage@sabayonlinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-28mtrr/cyrix: fix sectionsRandy Dunlap
main.c::mtrr_add() or mtrr_del() [exported] calls main.c::mtrr_add_page() or mtrr_del_page() or mtrr_restore() [resume] calls main.c::set_mtrr() calls main.c::ipi_handler() calls main.c::mtrr_if->set_all() == which can be cyrix_set_all WARNING: arch/i386/kernel/built-in.o(.text+0x8657): Section mismatch: reference to .init.data: (between 'cyrix_set_all' and 'centaur_get_free_region') WARNING: arch/i386/kernel/built-in.o(.text+0x866b): Section mismatch: reference to .init.data: (between 'cyrix_set_all' and 'centaur_get_free_region') WARNING: arch/i386/kernel/built-in.o(.text+0x867e): Section mismatch: reference to .init.data: (between 'cyrix_set_all' and 'centaur_get_free_region') WARNING: arch/i386/kernel/built-in.o(.text+0x8684): Section mismatch: reference to .init.data: (between 'cyrix_set_all' and 'centaur_get_free_region') WARNING: arch/i386/kernel/built-in.o(.text+0x868a): Section mismatch: reference to .init.data: (between 'cyrix_set_all' and 'centaur_get_free_region') Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-21[CPUFREQ] Longhaul - Proper register accessRafał Bilski
In previous commit I used u32 for u16 register. This code will work only when ACPI block address is set. For now it is only for VT8235 and VT8237. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
2007-06-20x86_64: fix link warning between for .text and .init.textYinghai Lu
WARNING: arch/x86_64/kernel/built-in.o(.text+0xace9): Section mismatch: reference to .init.text: (between 'get_mtrr_state' and 'mtrr_wrmsr') WARNING: arch/x86_64/kernel/built-in.o(.text+0xad09): Section mismatch: reference to .init.text: (between 'get_mtrr_state' and 'mtrr_wrmsr') WARNING: arch/x86_64/kernel/built-in.o(.text+0xad38): Section mismatch: reference to .init.text: (between 'get_mtrr_state' and 'mtrr_wrmsr') WARNING: drivers/built-in.o(.text+0x3a680): Section mismatch: reference to .init.text:acpi_map_pxm_to_node (between 'acpi_get_node' and 'acpi_lock_ac_dir') AK: also marked mtrr_bp_init __init to avoid some more warnings Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Andi Kleen <ak@suse.de> Acked-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-16perfctr-watchdog: fix interchanged parameters to release_{evntsel,perfctr}_nmiBjörn Steinbrink
Fix oops triggered during: echo 0 > /proc/sys/kernel/nmi_watchdog The culprit seems to be 09198e68501a7e34737cd9264d266f42429abcdc: [PATCH] i386: Clean up NMI watchdog code In two places, the parameters to release_{evntsel,perfctr}_nmi got interchanged during the cleanup. Fix interchanged parameters to release_{evntsel,perfctr}_nmi. Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de> Cc: Stephane Eranian <eranian@hpl.hp.com> Cc: Andi Kleen <ak@suse.de> Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-16i386: use the right wrapper to disable the NMI watchdogBjörn Steinbrink
When disabled through /proc/sys/kernel/nmi_watchdog, the NMI watchdog uses the stop() method directly, which does not decrement the activity counter, leading to a BUG(). Use the wrapper function instead to fix that. Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-16i386: fix NMI watchdog not reserving its MSRsBjörn Steinbrink
At system boot time, the NMI watchdog no longer reserved its MSRs, allowing other subsystems to mess with them. Fix that. Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-06[CPUFREQ] Kconfig powernow-k8 driver should depend on ACPI P-States driverJoshua Hoblitt
powernow-k8 really needs to use ACPI to function on SMP systems. The current Kconfig allows us to build kernels which fail mysteriously for some users due to us trying to automatically enable this, and getting it wrong. It's easier to just present this as an option to the user. Signed-off-by: Joshua Hoblitt <jhoblitt@ifa.hawaii.edu> Signed-off-by: Dave Jones <davej@redhat.com>
2007-06-06[CPUFREQ] Longhaul - Replace ACPI functions with direct I/ORafał Bilski
Current version of "bm status" bit test works as long as no USB device is in use. When USB device is plugged in ACPI function in this context is always returning 1. Until reboot. Direct I/O is working fine even when many USB devices are connected. Change bm_timeout value to less annoying. 1000 is still much more then worst case observed and it is much better when status bit gets stuck. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
2007-06-04mtrr atomicity fixAndrew Morton
Rafael gets this on an SMP box with kernel preemption enabled, during hibernation and restore (100% of the time): Enabling non-boot CPUs ... BUG: using smp_processor_id() in preemptible [00000001] code: bash/4514 caller is mtrr_save_state+0x9/0x40 Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-29[CPUFREQ] Longhaul - Remove duplicate multipliersRafał Bilski
Remove duplicate multipliers in clock_ratio table. On 1,4GHz Nehemiah two frequencies are present twice in table. It isn't fatal, but with voltage scaling enabled each will be set twice. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
2007-05-29[CPUFREQ] Longhaul - Embedded "conservative"Rafał Bilski
Longhaul with voltage scaling enabled works great on Ezra CPU (Longhaul ver. 2). As long as "conservative" governor is used. Both "ondemand" and "userspace" can change voltage from min to max at once. Motherboard unfortunatly turns off when vid difference is big. Longhaul was printing warning message, but it is not enough. Now driver will have "conservative" governor built in and will split bigger changes to smaller ones. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
2007-05-29[CPUFREQ] acpi-cpufreq: Proper ReadModifyWrite of PERF_CTL MSRVenki Pallipadi
During recent acpi-cpufreq changes, writing to PERF_CTL msr changed from RMW of entire 64 bit to RMW of low 32 bit and clearing of upper 32 bit. Fix it back to do a proper RMW of the MSR. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
2007-05-29[CPUFREQ] Longhaul - Check ACPI "BM DMA in progress" bitRafał Bilski
It is good idea to wait for PCI bus to become idle before frequency change. Thanks to ACPI it is possible. It makes sense only when northbridge support is in use because it is only case in which we can disable arbiter after check if PCI bus is busy. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
2007-05-29[CPUFREQ] Longhaul - Move old_ratio to correct placeRafał Bilski
Move one line where it should be. After first transition Longhaul will skip frequency transition if destination frequency is already set. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
2007-05-29[CPUFREQ] Longhaul - VT8237 supportRafał Bilski
Looks like VT8237 has the same bits which VT8235 has. Poke registers if it is found. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
2007-05-29[CPUFREQ] Longhaul - Use all kinds of supportRafał Bilski
This patch is removing southbridge support as separate kind of support. Instead it is used to make other kinds of support more stable. Also northbridge and ACPI C3 support both will be used if both are available. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
2007-05-21i386: fix PGE maskBrian Gerst
cr4 is a 32-bit register, so casting the mask to an unsigned char is wrong, as it clears more than the PGE bit. Signed-off-by: Brian Gerst <bgerst@didntduck.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21i386: Clear MCE flag on AMD K6Andi Kleen
It reports machine check capability in CPUID, but doesn't actually implement all the necessary MSRs of the standard Intel machine check architecture. This fixes a boot failure on K6s recently introduced. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Detach sched.h from mm.hAlexey Dobriyan
First thing mm.h does is including sched.h solely for can_do_mlock() inline function which has "current" dereference inside. By dealing with can_do_mlock() mm.h can be detached from sched.h which is good. See below, why. This patch a) removes unconditional inclusion of sched.h from mm.h b) makes can_do_mlock() normal function in mm/mlock.c c) exports can_do_mlock() to not break compilation d) adds sched.h inclusions back to files that were getting it indirectly. e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were getting them indirectly Net result is: a) mm.h users would get less code to open, read, preprocess, parse, ... if they don't need sched.h b) sched.h stops being dependency for significant number of files: on x86_64 allmodconfig touching sched.h results in recompile of 4083 files, after patch it's only 3744 (-8.3%). Cross-compile tested on all arm defconfigs, all mips defconfigs, all powerpc defconfigs, alpha alpha-up arm i386 i386-up i386-defconfig i386-allnoconfig ia64 ia64-up m68k mips parisc parisc-up powerpc powerpc-up s390 s390-up sparc sparc-up sparc64 sparc64-up um-x86_64 x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig as well as my two usual configs. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-18[CPUFREQ] powernow-k8: clarify number of cores.Dave Jones
Indicate number of processors and cores more cleanly in startup messages. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
2007-05-17i386/x86-64: fix section mismatchBernhard Walle
WARNING: arch/x86_64/kernel/built-in.o - Section mismatch: reference to .init.text:mtrr_bp_init from .text between 'id entify_cpu' (at offset 0x6571) and 'IRQ0x20_interrupt' It's because identify_cpu() which is __cpuinit calls mtrr_bp_init() which is __init(). __cpuinit() expands to nothing if CONFIG_HOTPLUG_CPU=y and so the call is illegal. Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-14[CPUFREQ] Correct revision mask for powernow-k8Dave Jones
Mark Langsdorf points out that the correct define for this revision bump is 0x80000. Also to save us having to keep renaming the #define, give it a more meaningful name. Signed-off-by: Dave Jones <davej@redhat.com>
2007-05-13[CPUFREQ] powernow-k7: fix MHz rounding issue with perflibDaniel Drake
When the PST tables are broken, powernow-k7 uses ACPI's processor_perflib to deduce the available frequency multipliers from the _PSS tables. Upon frequency change, processor_perflib performs some verification on the frequency (checks that it's within allowable bounds). powernow-k7 deals with absolute frequencies in KHz, whereas perflib only deals with MHz values. When performing the above verification, perflib multiplies the MHz values by 1000 to obtain the KHz value. We then end up with situations like the following: - powernow-k7 multiplies the multiplier by the FSB, and obtains a value such as 1266768 KHz - perflib belives the same state has frequency of 1266 MHz - acpi_processor_ppc_notifier calls cpufreq_verify_within_limits to verify that 1266768 is in the allowable range of 0 to 1266000 (i.e. 1266 * 1000) - it's not, so that frequency is rejected - the maximum CPU frequency is not reachable This patch solves the problem by rounding up the MHz values stored in perflib's tables. Additionally it corrects a broken URL. It also fixes http://bugzilla.kernel.org/show_bug.cgi?id=8255 although this case is a bit different: the frequencies in the _PSS tables are wildly wrong, but we get better results if we force ACPI to respect the fsb * multiplier calculations (even though it seems that the multiplier values aren't entirely correct either). Signed-off-by: Daniel Drake <dsd@gentoo.org> Signed-off-by: Dave Jones <davej@redhat.com>
2007-05-13[CPUFREQ] Support rev H AMD64s in powernow-k8Dave Jones
Reported-by: Calvin Dodge <caldodge@gmail.com> Signed-off-by: Dave Jones <davej@redhat.com>
2007-05-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (25 commits) sound: convert "sound" subdirectory to UTF-8 MAINTAINERS: Add cxacru website/mailing list include files: convert "include" subdirectory to UTF-8 general: convert "kernel" subdirectory to UTF-8 documentation: convert the Documentation directory to UTF-8 Convert the toplevel files CREDITS and MAINTAINERS to UTF-8. remove broken URLs from net drivers' output Magic number prefix consistency change to Documentation/magic-number.txt trivial: s/i_sem /i_mutex/ fix file specification in comments drivers/base/platform.c: fix small typo in doc misc doc and kconfig typos Remove obsolete fat_cvf help text Fix occurrences of "the the " Fix minor typoes in kernel/module.c Kconfig: Remove reference to external mqueue library Kconfig: A couple of grammatical fixes in arch/i386/Kconfig Correct comments in genrtc.c to refer to correct /proc file. Fix more "deprecated" spellos. Fix "deprecated" typoes. ... Fix trivial comment conflict in kernel/relay.c.
2007-05-09i386: cpu/transmeta.c: fix definition of USER686H. Peter Anvin
The definition of USER686 is supposed to be a mask of feature bits, not an OR of feature numbers! It happened to work anyway on the only processor affected, simply by pure coincidence. Fix. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09Add suspend-related notifications for CPU hotplugRafael J. Wysocki
Since nonboot CPUs are now disabled after tasks and devices have been frozen and the CPU hotplug infrastructure is used for this purpose, we need special CPU hotplug notifications that will help the CPU-hotplug-aware subsystems distinguish normal CPU hotplug events from CPU hotplug events related to a system-wide suspend or resume operation in progress. This patch introduces such notifications and causes them to be used during suspend and resume transitions. It also changes all of the CPU-hotplug-aware subsystems to take these notifications into consideration (for now they are handled in the same way as the corresponding "normal" ones). [oleg@tv-sign.ru: cleanups] Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Gautham R Shenoy <ego@in.ibm.com> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09fix file specification in commentsUwe Kleine-König
Many files include the filename at the beginning, serveral used a wrong one. Signed-off-by: Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-05-05Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6Linus Torvalds
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (231 commits) [PATCH] i386: Don't delete cpu_devs data to identify different x86 types in late_initcall [PATCH] i386: type may be unused [PATCH] i386: Some additional chipset register values validation. [PATCH] i386: Add missing !X86_PAE dependincy to the 2G/2G split. [PATCH] x86-64: Don't exclude asm-offsets.c in Documentation/dontdiff [PATCH] i386: avoid redundant preempt_disable in __unlazy_fpu [PATCH] i386: white space fixes in i387.h [PATCH] i386: Drop noisy e820 debugging printks [PATCH] x86-64: Fix allnoconfig error in genapic_flat.c [PATCH] x86-64: Shut up warnings for vfat compat ioctls on other file systems [PATCH] x86-64: Share identical video.S between i386 and x86-64 [PATCH] x86-64: Remove CONFIG_REORDER [PATCH] x86-64: Print type and size correctly for unknown compat ioctls [PATCH] i386: Remove copy_*_user BUG_ONs for (size < 0) [PATCH] i386: Little cleanups in smpboot.c [PATCH] x86-64: Don't enable NUMA for a single node in K8 NUMA scanning [PATCH] x86: Use RDTSCP for synchronous get_cycles if possible [PATCH] i386: Add X86_FEATURE_RDTSCP [PATCH] i386: Implement X86_FEATURE_SYNC_RDTSC on i386 [PATCH] i386: Implement alternative_io for i386 ... Fix up trivial conflict in include/linux/highmem.h manually. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-04Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (59 commits) PCI: Free resource files in error path of pci_create_sysfs_dev_files() pci-quirks: disable MSI on RS400-200 and RS480 PCI hotplug: Use menuconfig objects PCI: ZT5550 CPCI Hotplug driver fix PCI: rpaphp: Remove semaphores PCI: rpaphp: Ensure more pcibios_add/pcibios_remove symmetry PCI: rpaphp: Use pcibios_remove_pci_devices() symmetrically PCI: rpaphp: Document is_php_dn() PCI: rpaphp: Document find_php_slot() PCI: rpaphp: Rename rpaphp_register_pci_slot() to rpaphp_enable_slot() PCI: rpaphp: refactor tail call to rpaphp_register_slot() PCI: rpaphp: remove rpaphp_set_attention_status() PCI: rpaphp: remove print_slot_pci_funcs() PCI: rpaphp: Remove setup_pci_slot() PCI: rpaphp: remove a call that does nothing but a pointer lookup PCI: rpaphp: Remove another wrappered function PCI: rpaphp: Remve another call that is a wrapper PCI: rpaphp: remove a function that does nothing but wrap debug printks PCI: rpaphp: Remove un-needed goto PCI: rpaphp: Fix a memleak; slot->location string was never freed ...
2007-05-02PCI: Cleanup the includes of <linux/pci.h>Jean Delvare
I noticed that many source files include <linux/pci.h> while they do not appear to need it. Here is an attempt to clean it all up. In order to find all possibly affected files, I searched for all files including <linux/pci.h> but without any other occurence of "pci" or "PCI". I removed the include statement from all of these, then I compiled an allmodconfig kernel on both i386 and x86_64 and fixed the false positives manually. My tests covered 66% of the affected files, so there could be false positives remaining. Untested files are: arch/alpha/kernel/err_common.c arch/alpha/kernel/err_ev6.c arch/alpha/kernel/err_ev7.c arch/ia64/sn/kernel/huberror.c arch/ia64/sn/kernel/xpnet.c arch/m68knommu/kernel/dma.c arch/mips/lib/iomap.c arch/powerpc/platforms/pseries/ras.c arch/ppc/8260_io/enet.c arch/ppc/8260_io/fcc_enet.c arch/ppc/8xx_io/enet.c arch/ppc/syslib/ppc4xx_sgdma.c arch/sh64/mach-cayman/iomap.c arch/xtensa/kernel/xtensa_ksyms.c arch/xtensa/platform-iss/setup.c drivers/i2c/busses/i2c-at91.c drivers/i2c/busses/i2c-mpc.c drivers/media/video/saa711x.c drivers/misc/hdpuftrs/hdpu_cpustate.c drivers/misc/hdpuftrs/hdpu_nexus.c drivers/net/au1000_eth.c drivers/net/fec_8xx/fec_main.c drivers/net/fec_8xx/fec_mii.c drivers/net/fs_enet/fs_enet-main.c drivers/net/fs_enet/mac-fcc.c drivers/net/fs_enet/mac-fec.c drivers/net/fs_enet/mac-scc.c drivers/net/fs_enet/mii-bitbang.c drivers/net/fs_enet/mii-fec.c drivers/net/ibm_emac/ibm_emac_core.c drivers/net/lasi_82596.c drivers/parisc/hppb.c drivers/sbus/sbus.c drivers/video/g364fb.c drivers/video/platinumfb.c drivers/video/stifb.c drivers/video/valkyriefb.c include/asm-arm/arch-ixp4xx/dma.h sound/oss/au1550_ac97.c I would welcome test reports for these files. I am fine with removing the untested files from the patch if the general opinion is that these changes aren't safe. The tested part would still be nice to have. Note that this patch depends on another header fixup patch I submitted to LKML yesterday: [PATCH] scatterlist.h needs types.h http://lkml.org/lkml/2007/3/01/141 Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-02[PATCH] i386: Don't delete cpu_devs data to identify different x86 types in ↵Thomas Renninger
late_initcall In arch/i386/cpu/common.c there is: cpu_devs[X86_VENDOR_INTEL] cpu_devs[X86_VENDOR_CYRIX] cpu_devs[X86_VENDOR_AMD] ... They are all filled with data early. The data (struct) got set to NULL for all, but Intel in different late_initcall (exit_cpu_vendor) calls. I don't see what sense this makes at all, maybe something that got forgotten with the HOTPLUG_CPU extenstions? Please check/review whether initdata, cpuinitdata is still ok and this still works with HOTPLUG_CPU and without, it should... Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Andi Kleen <ak@suse.de> Cc: davej@redhat.com
2007-05-02[PATCH] i386: Implement X86_FEATURE_SYNC_RDTSC on i386Andi Kleen
Syncs up with x86-64. Signed-off-by: Andi Kleen <ak@suse.de>
2007-05-02[PATCH] i386: Clean up NMI watchdog codeAndi Kleen
- Introduce a wd_ops structure - Convert the various nmi watchdogs over to it - This allows to split the perfctr reservation from the watchdog setup cleanly. - Do perfctr reservation globally as it should have always been - Remove dead code referenced only by unused EXPORT_SYMBOLs Signed-off-by: Andi Kleen <ak@suse.de>
2007-05-02[PATCH] i386: check capabilityJoachim Deguara
Currently the i386 architecture checks the family for mce capability and this removes that and uses the CPUID information. Tested on a K8 revE and a family10h processor. This eliminates checking of a set AMD procesor family if mce is allowed and relies on the information being in CPUID. Signed-off-by: Joachim Deguara <joachim.deguara@amd.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2007-05-02[PATCH] i386: fix mtrr sectionsRandy Dunlap
Fix section mismatch warnings in mtrr code. Fix line length on one source line. WARNING: arch/x86_64/kernel/built-in.o - Section mismatch: reference to .init.data: from .text.get_mtrr_state after 'get_mtrr_state' (at offset 0x103) WARNING: arch/x86_64/kernel/built-in.o - Section mismatch: reference to .init.text: from .text.get_mtrr_state after 'get_mtrr_state' (at offset 0x180) WARNING: arch/x86_64/kernel/built-in.o - Section mismatch: reference to .init.text: from .text.get_mtrr_state after 'get_mtrr_state' (at offset 0x199) WARNING: arch/x86_64/kernel/built-in.o - Section mismatch: reference to .init.text: from .text.get_mtrr_state after 'get_mtrr_state' (at offset 0x1c1) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2007-05-02[PATCH] i386: Enable support for fixed-range IORRs to keep RdMem & WrMem in syncBernhard Kaindl
If our copy of the MTRRs of the BSP has RdMem or WrMem set, and we are running on an AMD64/K8 system, the boot CPU must have had MtrrFixDramEn and MtrrFixDramModEn set (otherwise our RDMSR would have copied these bits cleared), so we set them on this CPU as well. This allows us to keep the AMD64/K8 RdMem and WrMem bits in sync across the CPUs of SMP systems in order to fullfill the duty of system software to "initialize and maintain MTRR consistency across all processors." as written in the AMD and Intel manuals. If an WRMSR instruction fails because MtrrFixDramModEn is not set, I expect that also the Intel-style MTRR bits are not updated. AK: minor cleanup, moved MSR defines around Signed-off-by: Bernhard Kaindl <bk@suse.de> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andi Kleen <ak@suse.de> Cc: Dave Jones <davej@codemonkey.org.uk>