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* Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2008-10-2317-84/+89
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: fix section mismatch warning - apic_x2apic_phys x86: fix section mismatch warning - apic_x2apic_cluster x86: fix section mismatch warning - apic_x2apic_uv_x x86: fix section mismatch warning - apic_physflat x86: fix section mismatch warning - apic_flat x86: memtest fix use of reserve_early() x86 syscall.h: fix argument order x86/tlb_uv: remove strange mc146818rtc include x86: remove redundant KERN_DEBUG on pr_debug x86: do_boot_cpu - check if we have ESR register x86: MAINTAINERS change for AMD microcode patch loader x86/proc: fix /proc/cpuinfo cpu offline bug x86: call dmi-quirks for HP Laptops after early-quirks are executed x86, kexec: fix hang on i386 when panic occurs while console_sem is held MCE: Don't run 32bit machine checks with interrupts on x86: SB600: skip IRQ0 override if it is not routed to INT2 of IOAPIC x86: make variables static
| * x86: fix section mismatch warning - apic_x2apic_physMarcin Slusarz2008-10-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | Impact: cleanup only, no functionality changed WARNING: vmlinux.o(.data+0xc008): Section mismatch in reference from the variable apic_x2apic_phys to the function .init.text:x2apic_acpi_madt_oem_check() The variable apic_x2apic_phys references the function __init x2apic_acpi_madt_oem_check() Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix section mismatch warning - apic_x2apic_clusterMarcin Slusarz2008-10-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | Impact: cleanup only, no functionality changed WARNING: vmlinux.o(.data+0xbf88): Section mismatch in reference from the variable apic_x2apic_cluster to the function .init.text:x2apic_acpi_madt_oem_check() The variable apic_x2apic_cluster references the function __init x2apic_acpi_madt_oem_check() Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix section mismatch warning - apic_x2apic_uv_xMarcin Slusarz2008-10-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | Impact: cleanup only, no functionality changed WARNING: vmlinux.o(.data+0xbf08): Section mismatch in reference from the variable apic_x2apic_uv_x to the function .init.text:uv_acpi_madt_oem_check() The variable apic_x2apic_uv_x references the function __init uv_acpi_madt_oem_check() Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix section mismatch warning - apic_physflatMarcin Slusarz2008-10-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | Impact: cleanup only, no functionality changed WARNING: vmlinux.o(.data+0xbe88): Section mismatch in reference from the variable apic_physflat to the function .init.text:physflat_acpi_madt_oem_check() The variable apic_physflat references the function __init physflat_acpi_madt_oem_check() Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix section mismatch warning - apic_flatMarcin Slusarz2008-10-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup only, no functionality changed WARNING: vmlinux.o(.data+0xbe08): Section mismatch in reference from the variable apic_flat to the function .init.text:flat_acpi_madt_oem_check() The variable apic_flat references the function __init flat_acpi_madt_oem_check() This is harmless, because the .acpi_madt_oem_check is only called during init time. But we keep the function pointer around in a .data function pointer template, so it's better we do not keep that stale - so mark this function non-__init. Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: memtest fix use of reserve_early()Daniele Calore2008-10-221-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hi all, Wrong usage of 2nd parameter in reserve_early call. 66/75: reserve_early(start_bad, last_bad - start_bad, "BAD RAM"); ^^^^^^^^^^^^^^^^^^^^ The correct way is to use 'end' address and not 'size'. As a bonus a fix to the printk format. Signed-off-by: Daniele Calore <orkaan@orkaan.org> Acked-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86/tlb_uv: remove strange mc146818rtc includeJeremy Fitzhardinge2008-10-221-1/+1
| | | | | | | | | | | | | | | | | | For some reason tlb_uv was including linux/mc146818rtc.h. It really just needs linux/seq_file.h Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citix.com> Cc: Cliff Wickman <cpw@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: remove redundant KERN_DEBUG on pr_debugGustavo F. Padovan2008-10-222-2/+2
| | | | | | | | | | | | | | pr_debug don't need KERN_DEBUG. Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: do_boot_cpu - check if we have ESR registerCyrill Gorcunov2008-10-221-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: fix APIC IRQ irregularities on certain older boxes We should touch the APIC ESR register if only we have it. The patch fixes the problem mentioned by Max Kellermann: http://lkml.org/lkml/2008/10/17/147 Bisected-by: Max Kellermann <mk@cm4all.com> Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> [ mingo@elte.hu: build fix ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86/proc: fix /proc/cpuinfo cpu offline bugLai Jiangshan2008-10-221-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: fix missing CPUs in /proc/cpuinfo after CPU hotunplug/hotreplug In my test, I found that if a cpu has been offline, the next cpus may not be shown in the /proc/cpuinfo. if one read() cannot consume the whole /proc/cpuinfo, c_start() will be called again in the next read() calls. And *pos has been increased by 1 by the caller(seq_read()). if this time the cpu#*pos is offline, c_start() will return NULL, and the next cpus can not be shown. this fix use next_cpu_nr(*pos - 1, cpu_online_map) to search the next unshown cpu. the most easy way to reproduce this bug: 1) offline cpu#1 (cpu#0 is online) 2) dd ibs=2 if=/proc/cpuinfo the result is that only cpu#0 is shown. cpu#2 and cpu#3 .... cannot be shown in /proc/cpuinfo it's bug. Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: call dmi-quirks for HP Laptops after early-quirks are executedAndreas Herrmann2008-10-221-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: make warning message disappear - functionality unchanged Problems with bogus IRQ0 override of those laptops should be fixed with commits x86: SB600: skip IRQ0 override if it is not routed to INT2 of IOAPIC x86: SB450: skip IRQ0 override if it is not routed to INT2 of IOAPIC that introduce early-quirks based on chipset configuration. For further information, see http://bugzilla.kernel.org/show_bug.cgi?id=11516 Instead of removing the related dmi-quirks completely we'd like to keep them for (at least) one kernel version -- to double-check whether the early-quirks really took effect. But the dmi-quirks need to be called after early-quirks are executed. With this patch calling sequence for dmi-quriks is changed as follows: acpi_boot_table_init() (dmi-quirks) ... early_quirks() (detect bogus IRQ0 override) ... acpi_boot_init() (late dmi-quirks and setup IO APIC) Note: Plan is to remove the "late dmi-quirks" with next kernel version. Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86, kexec: fix hang on i386 when panic occurs while console_sem is heldNeil Horman2008-10-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's a corner case in 32 bit x86 kdump at the moment. When the box panics via nmi, we call bust_spinlocks(1) to disable sensitivity to the console_sem (allowing us to print to the console in all cases), but we don't call crash_kexec, until after we call bust_spinlocks(0), which re-enables console_sem sensitivity. The result is that, if we get an nmi while the console_sem is held and kdump is configured, and we try to print something to the console during kdump shutdown (which we often do) we deadlock the box. The fix is to simply do what 64 bit die_nmi does which is to not call bust_spinlocks(0) until after we call crash_kexec. Patch below tested successfully by me. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * MCE: Don't run 32bit machine checks with interrupts onAndi Kleen2008-10-222-9/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Running machine checks with interrupt on is a extremly bad idea. The machine check handler only runs when the system is broken and needs to finish as quickly as possible. Remove the respective bogus post 2.6.27 regression and call the machine check vector directly again. This removes only code. Signed-off-by: Andi Kleen <ak@linux.intel.com> [Cherry-picked from x86/mce] Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: SB600: skip IRQ0 override if it is not routed to INT2 of IOAPICAndreas Herrmann2008-10-221-3/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: fix hung bootup and other misbehavior on certain laptops On some more HP laptops BIOS reports an IRQ0 override but the SB600 chipset is configured such that timer interrupts go to INT0 of IOAPIC. Check IRQ0 routing and if it is routed to INT0 of IOAPIC skip the timer override. See following bug reports: http://bugzilla.kernel.org/show_bug.cgi?id=11715 http://bugzilla.kernel.org/show_bug.cgi?id=11516 Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: <stable@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: make variables staticroel kluin2008-10-223-5/+5
| | | | | | | | | | | | | | These variables are only used in their source files, so make them static. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | Merge branch 'proc' of ↵Linus Torvalds2008-10-232-7/+7
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc * 'proc' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc: (35 commits) proc: remove fs/proc/proc_misc.c proc: move /proc/vmcore creation to fs/proc/vmcore.c proc: move pagecount stuff to fs/proc/page.c proc: move all /proc/kcore stuff to fs/proc/kcore.c proc: move /proc/schedstat boilerplate to kernel/sched_stats.h proc: move /proc/modules boilerplate to kernel/module.c proc: move /proc/diskstats boilerplate to block/genhd.c proc: move /proc/zoneinfo boilerplate to mm/vmstat.c proc: move /proc/vmstat boilerplate to mm/vmstat.c proc: move /proc/pagetypeinfo boilerplate to mm/vmstat.c proc: move /proc/buddyinfo boilerplate to mm/vmstat.c proc: move /proc/vmallocinfo to mm/vmalloc.c proc: move /proc/slabinfo boilerplate to mm/slub.c, mm/slab.c proc: move /proc/slab_allocators boilerplate to mm/slab.c proc: move /proc/interrupts boilerplate code to fs/proc/interrupts.c proc: move /proc/stat to fs/proc/stat.c proc: move rest of /proc/partitions code to block/genhd.c proc: move /proc/cpuinfo code to fs/proc/cpuinfo.c proc: move /proc/devices code to fs/proc/devices.c proc: move rest of /proc/locks to fs/locks.c ...
| * | proc: switch /proc/meminfo to seq_fileAlexey Dobriyan2008-10-231-6/+5
| |/ | | | | | | | | | | and move it to fs/proc/meminfo.c while I'm at it. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
* | Merge branch 'v28-range-hrtimers-for-linus-v2' of ↵Linus Torvalds2008-10-232-8/+6
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'v28-range-hrtimers-for-linus-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (37 commits) hrtimers: add missing docbook comments to struct hrtimer hrtimers: simplify hrtimer_peek_ahead_timers() hrtimers: fix docbook comments DECLARE_PER_CPU needs linux/percpu.h hrtimers: fix typo rangetimers: fix the bug reported by Ingo for real rangetimer: fix BUG_ON reported by Ingo rangetimer: fix x86 build failure for the !HRTIMERS case select: fix alpha OSF wrapper select: fix alpha OSF wrapper hrtimer: peek at the timer queue just before going idle hrtimer: make the futex() system call use the per process slack value hrtimer: make the nanosleep() syscall use the per process slack hrtimer: fix signed/unsigned bug in slack estimator hrtimer: show the timer ranges in /proc/timer_list hrtimer: incorporate feedback from Peter Zijlstra hrtimer: add a hrtimer_start_range() function hrtimer: another build fix hrtimer: fix build bug found by Ingo hrtimer: make select() and poll() use the hrtimer range feature ...
| * \ Merge branch 'timers/range-hrtimers' into v28-range-hrtimers-for-linus-v2Thomas Gleixner2008-10-222-8/+6
| |\ \ | | |/ | |/| | | | | | | | | | | | | | | | Conflicts: kernel/time/tick-sched.c Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| | * Merge commit 'linus/master' into merge-linusArjan van de Ven2008-10-17229-9459/+17032
| | |\ | | | | | | | | | | | | | | | | | | | | Conflicts: arch/x86/kvm/i8254.c
| | * | hrtimer: convert kvm to the new hrtimer apisArjan van de Ven2008-09-052-7/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to be able to do range hrtimers we need to use accessor functions to the "expire" member of the hrtimer struct. This patch converts KVM to these accessors. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* | | | Merge branch 'x86/um-header' of ↵Linus Torvalds2008-10-23338-8/+38685
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86/um-header' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (26 commits) x86: canonicalize remaining header guards x86: drop double underscores from header guards x86: Fix ASM_X86__ header guards x86, um: get rid of uml-config.h x86, um: get rid of arch/um/Kconfig.arch x86, um: get rid of arch/um/os symlink x86, um: get rid of excessive includes of uml-config.h x86, um: get rid of header symlinks x86, um: merge Kconfig.i386 and Kconfig.x86_64 x86, um: get rid of sysdep symlink x86, um: trim the junk from uml ptrace-*.h x86, um: take vm-flags.h to sysdep x86, um: get rid of uml asm/arch x86, um: get rid of uml highmem.h x86, um: get rid of uml unistd.h x86, um: get rid of system.h -> system.h include x86, um: uml atomic.h is not needed anymore x86, um: untangle uml ldt.h x86, um: get rid of more uml asm/arch uses x86, um: remove dead header (uml module-generic.h; never used these days) ...
| * | | | x86: canonicalize remaining header guardsH. Peter Anvin2008-10-233-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Canonicalize a few remaining header guards, with the exception for those which are still in subarchitecture directories. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | | x86: drop double underscores from header guardsH. Peter Anvin2008-10-2332-96/+96
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Drop double underscores from header guards in arch/x86/include. They are used inconsistently, and are not necessary. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | | x86: Fix ASM_X86__ header guardsH. Peter Anvin2008-10-22270-803/+803
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change header guards named "ASM_X86__*" to "_ASM_X86_*" since: a. the double underscore is ugly and pointless. b. no leading underscore violates namespace constraints. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | | x86, um: ... and asm-x86 moveAl Viro2008-10-22335-4/+38676
| |/ / / | | | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | | | Merge branch 'release' of ↵Linus Torvalds2008-10-237-25/+96
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (123 commits) dock: make dock driver not a module ACPI: fix ia64 build warning ACPI: hack around sysfs warning with link order ACPI suspend: fix build warning when CONFIG_ACPI_SLEEP=n intel_menlo: fix build warning panasonic-laptop: fix build ACPICA: Update version to 20080926 ACPICA: Add support for zero-length buffer-to-string conversions ACPICA: New: Validation for predefined ACPI methods/objects ACPICA: Fix for implicit return compatibility ACPICA: Fixed a couple memory leaks associated with "implicit return" ACPICA: Optimize buffer allocation procedure ACPICA: Fix possible memory leak, error exit path ACPICA: Fix fault after mem allocation failure in AML parser ACPICA: Remove unused ACPI register bit definition ACPICA: Update version to 20080829 ACPICA: Fix possible memory leak in acpi_ns_get_external_pathname ACPICA: Cleanup for internal Reference Object ACPICA: Update comments - no functional changes ACPICA: Update for Reference ACPI_OPERAND_OBJECT ...
| * \ \ \ Merge branch 'bugzilla-11715' into testLen Brown2008-10-231-3/+52
| |\ \ \ \
| | * | | | x86: SB600: skip ACPI IRQ0 override if it is not routed to INT2 of IOAPICAndreas Herrmann2008-10-161-3/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On some more HP laptops BIOS reports an IRQ0 override but the SB600 chipset is configured such that timer interrupts go to INT0 of IOAPIC. Check IRQ0 routing and if it is routed to INT0 of IOAPIC skip the timer override. http://bugzilla.kernel.org/show_bug.cgi?id=11715 http://bugzilla.kernel.org/show_bug.cgi?id=11516 Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * | | | | Merge branch 'linus' into testLen Brown2008-10-23240-14616/+19247
| |\ \ \ \ \ | | | |/ / / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: MAINTAINERS arch/x86/kernel/acpi/boot.c arch/x86/kernel/acpi/sleep.c drivers/acpi/Kconfig drivers/pnp/Makefile drivers/pnp/quirks.c Signed-off-by: Len Brown <len.brown@intel.com>
| * | | | | Merge branch 'yinghai' into testLen Brown2008-10-221-0/+3
| |\ \ \ \ \
| | * | | | | ACPI: don't load acpi_cpufreq if acpi=offYinghai Lu2008-10-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * | | | | | Merge branch 'misc' into testLen Brown2008-10-222-3/+5
| |\ \ \ \ \ \
| | * | | | | | fix CONFIG_MMCONFIG=n build warningPavel Vasilyev2008-10-151-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/x86/kernel/acpi/boot.c:100: warning: 'acpi_mcfg_64bit_base_addr' defined but not used http://bugzilla.kernel.org/show_bug.cgi?id=11743 Signed-off-by: Pavel Vasilyev <linuxoid@tochka.ru> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | | | | x86: trim ACPI sleep stack bufferMatt Mackall2008-10-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | x86_64 SMP suspend to RAM uses a 10k temporary stack for saving the kernel state, but only 4k of it is used. Shrink it to 4k. Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | | | | x86: remove magic number from ACPI sleep stack bufferMatt Mackall2008-10-101-1/+1
| | |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | x86_64 SMP suspend to RAM uses a 10k temporary stack for saving the kernel state, but only 4k of it is used. Shrink it to 4k. Signed-off-by: Matt Mackall <mpm@selenic.com> Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Len Brown <len.brown@intel.com>
| * | | | | | Merge branch 'i7300_idle' into testLen Brown2008-10-222-0/+9
| |\ \ \ \ \ \
| | * | | | | | i7300_idle driver v1.55Andy Henroid2008-10-211-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Intel 7300 Memory Controller supports dynamic throttling of memory which can be used to save power when system is idle. This driver does the memory throttling when all CPUs are idle on such a system. Refer to "Intel 7300 Memory Controller Hub (MCH)" datasheet for the config space description. Signed-off-by: Andy Henroid <andrew.d.henroid@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
| | * | | | | | x86 allow modules to register idle notifiersVenkatesh Pallipadi2008-10-211-0/+7
| | |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | needed if the i7300_idle driver is to be modular. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Len Brown <len.brown@intel.com>
| * | | | | | Merge branch 'cpuidle' into testLen Brown2008-10-221-0/+3
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| | * | | | | | cpuidle: upon BIOS bug, default to default_idle rather than pollingVenkatesh Pallipadi2008-10-161-0/+3
| | |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=11345 Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * | | | | | Merge branch 'FW_BUG' into testLen Brown2008-10-221-18/+24
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| | * | | | | CPUFREQ: powernow-k8: Try to detect old BIOS, not supporting CPU freq on a ↵Thomas Renninger2008-09-221-18/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | recent AMD CPUs. Make use of FW_BUG interface to give vendors and users the ability to automatically check for powernow-k8 related BIOS bugs by: dmesg |grep "Firmware Bug" Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | | | | | | Merge branch 'for-linus' of ↵Linus Torvalds2008-10-237-174/+244
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile: (21 commits) OProfile: Fix buffer synchronization for IBS oprofile: hotplug cpu fix oprofile: fixing whitespaces in arch/x86/oprofile/* oprofile: fixing whitespaces in arch/x86/oprofile/* oprofile: fixing whitespaces in drivers/oprofile/* x86/oprofile: add the logic for enabling additional IBS bits x86/oprofile: reordering functions in nmi_int.c x86/oprofile: removing unused function parameter in add_ibs_begin() oprofile: more whitespace fixes oprofile: whitespace fixes OProfile: Rename IBS sysfs dir into "ibs_op" OProfile: Rework string handling in setup_ibs_files() OProfile: Rework oprofile_add_ibs_sample() function oprofile: discover counters for op ppro too oprofile: Implement Intel architectural perfmon support oprofile: Don't report Nehalem as core_2 oprofile: drop const in num counters field Revert "Oprofile Multiplexing Patch" x86, oprofile: BUG: using smp_processor_id() in preemptible code x86/oprofile: fix on_each_cpu build error ... Manually fixed trivial conflicts in drivers/oprofile/{cpu_buffer.c,event_buffer.h}
| * | | | | | | oprofile: fixing whitespaces in arch/x86/oprofile/*Robert Richter2008-10-162-11/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Robert Richter <robert.richter@amd.com>
| * | | | | | | Merge branch 'oprofile/x86-oprofile-for-tip' into oprofile/oprofile-for-tipRobert Richter2008-10-153-35/+108
| |\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/x86/oprofile/op_model_ppro.c
| | * | | | | | | oprofile: discover counters for op ppro tooAndi Kleen2008-10-132-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Discover number of counters for all family 6 models even when not in arch perfmon mode. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
| | * | | | | | | oprofile: Implement Intel architectural perfmon supportAndi Kleen2008-10-133-28/+102
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Newer Intel CPUs (Core1+) have support for architectural events described in CPUID 0xA. See the IA32 SDM Vol3b.18 for details. The advantage of this is that it can be done without knowing about the specific CPU, because the CPU describes by itself what performance events are supported. This is only a fallback because only a limited set of 6 events are supported. This allows to do profiling on Nehalem and on Atom systems (later not tested) This patch implements support for that in oprofile's Intel Family 6 profiling module. It also has the advantage of supporting an arbitary number of events now as reported by the CPU. Also allow arbitary counter widths >32bit while we're at it. Requires a patched oprofile userland to support the new architecture. v2: update for latest oprofile tree remove force_arch_perfmon Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
| | * | | | | | | oprofile: Don't report Nehalem as core_2Andi Kleen2008-10-131-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This essentially reverts Linus' earlier 4b9f12a3779c548b68bc9af7d94030868ad3aa1b commit. Nehalem is not core_2, so it shouldn't be reported as such. However with the earlier arch perfmon patch it will fall back to arch perfmon mode now, so there is no need to fake it as core_2. The only drawback is that Linus will need to patch the arch perfmon support into his oprofile binary now, but I think he can do that. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
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