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2aa44d0567
linux-next/arch/i386/kernel
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Ingo Molnar 2aa44d0567 sched: sched_clock_idle_[sleep|wakeup]_event() 
construct a more or less wall-clock time out of sched_clock(), by
using ACPI-idle's existing knowledge about how much time we spent
idling. This allows the rq clock to work around TSC-stops-in-C2,
TSC-gets-corrupted-in-C3 type of problems.

( Besides the scheduler's statistics this also benefits blktrace and
  printk-timestamps as well. )

Furthermore, the precise before-C2/C3-sleep and after-C2/C3-wakeup
callbacks allow the scheduler to get out the most of the period where
the CPU has a reliable TSC. This results in slightly more precise
task statistics.

the ACPI bits were acked by Len.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Len Brown <len.brown@intel.com>
2007-08-23 15:18:02 +02:00
..
acpi ACPI: restore CONFIG_ACPI_SLEEP 2007-07-29 16:53:59 -07:00
cpu Pull processor into release branch 2007-08-12 00:21:08 -04:00
.gitignore [PATCH] x86: gitignore some autogenerated files for i386 2006-02-14 16:09:35 -08:00
alternative.c x86: properly initialize temp insn buffer for paravirt patching 2007-08-18 15:15:54 -07:00
apic.c x86_64: Fix to keep watchdog disabled by default for i386/x86_64 2007-08-18 10:25:25 -07:00
apm.c arch/i386/kernel/apm.c: apm_init() warning fix 2007-07-31 15:39:39 -07:00
asm-offsets.c lguest: the asm offsets 2007-07-19 10:04:52 -07:00
bootflag.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
cpuid.c Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
crash_dump.c [PATCH] kdump: read previous kernel's memory 2006-01-10 08:01:28 -08:00
crash.c move die notifier handling to common code 2007-05-08 11:15:04 -07:00
doublefault.c i386: Fix double fault handler 2007-08-11 15:58:14 -07:00
e820.c Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION 2007-07-29 16:45:38 -07:00
early_printk.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
efi_stub.S [PATCH] x86: remove unused include from efi_stub.S 2006-09-26 08:48:56 -07:00
efi.c arch/i386/* fs/* ipc/*: mark variables with uninitialized_var() 2007-07-17 16:23:19 -04:00
entry.S i386: fixup TRACE_IRQ breakage 2007-07-18 12:09:01 -07:00
geode.c i386: basic infrastructure support for AMD geode-class machines 2007-07-21 18:37:14 -07:00
head.S i386: Fix start_kernel warning 2007-08-11 15:58:14 -07:00
hpet.c i386: hpet assumes boot cpu is 0 2007-07-21 18:37:14 -07:00
i386_ksyms.c [PATCH] i386: Convert PDA into the percpu section 2007-05-02 19:27:16 +02:00
i387.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
i8237.c [PATCH] mmc (mainly): add "or later" clause to licence statement. 2006-10-01 00:39:23 -07:00
i8253.c i386: move PIT function declarations and constants to correct header file 2007-07-21 18:37:14 -07:00
i8259.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
init_task.c use the new percpu interface for shared data 2007-07-19 10:04:45 -07:00
io_apic.c genirq: mark io_apic level interrupts to avoid resend 2007-08-12 11:05:45 -07:00
ioport.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
irq.c i386: Update alignment when 4K stacks are used. 2007-07-21 18:37:14 -07:00
kprobes.c x86: Fix alternatives and kprobes to remap write-protected kernel text 2007-07-22 11:03:37 -07:00
ldt.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
machine_kexec.c [PATCH] i386: Avoid overwriting the current pgd (V4, i386) 2006-09-26 10:52:38 +02:00
Makefile revert "x86, serial: convert legacy COM ports to platform devices" 2007-07-31 15:39:38 -07:00
mca.c [PATCH] i386: replace kmalloc+memset with kzalloc 2006-12-07 02:14:19 +01:00
microcode.c Remove fs.h from mm.h 2007-07-29 17:09:29 -07:00
module.c [PATCH] Generic BUG for i386 2006-12-08 08:28:39 -08:00
mpparse.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
msr.c Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
nmi.c x86_64: Fix to keep watchdog disabled by default for i386/x86_64 2007-08-18 10:25:25 -07:00
numaq.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
paravirt.c i386: Make patching more robust, fix paravirt issue 2007-08-11 15:58:13 -07:00
pci-dma.c x86: Disable DAC on VIA bridges 2007-06-20 14:27:25 -07:00
pcspeaker.c [PATCH] x86: Unify pcspeaker platform device code between i386/x86-64 2007-02-13 13:26:26 +01:00
process.c x86: Make Alt-SysRq-p display the debug register contents 2007-07-21 18:37:10 -07:00
ptrace.c Handle bogus %cs selector in single-step instruction decoding 2007-07-18 12:09:01 -07:00
quirks.c Clean up E7520/7320/7525 quirk printk. 2007-07-07 13:53:13 -07:00
reboot_fixups.c GEODE: reboot fixup for geode machines with CS5536 boards 2007-07-06 11:45:11 -07:00
reboot.c i386: DMI_MATCH patch in reboot.c for SFF Dell OptiPlex 745 - fixes hang on reboot 2007-07-21 18:37:12 -07:00
relocate_kernel.S [PATCH] i386: Avoid overwriting the current pgd (V4, i386) 2006-09-26 10:52:38 +02:00
scx200.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
setup.c ACPI: restore CONFIG_ACPI_SLEEP 2007-07-29 16:53:59 -07:00
sigframe.h [PATCH] __user annotations for pointers in i386 sigframe 2005-09-09 10:31:59 -07:00
signal.c x86: i386-show-unhandled-signals-v3 2007-07-22 11:03:37 -07:00
smp.c paravirt: unstatic leave_mm 2007-07-18 08:47:41 -07:00
smpboot.c i386: Fix cpu_llc_id section mismatch warning 2007-07-22 11:03:37 -07:00
smpcommon.c i386: Allow smp_call_function_single() to current cpu 2007-07-16 12:05:50 +03:00
srat.c ACPI: build fix for IBM x440 - CONFIG_X86_SUMMIT 2007-02-02 21:47:33 -05:00
summit.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sys_i386.c Remove fs.h from mm.h 2007-07-29 17:09:29 -07:00
syscall_table.S sys_fallocate() implementation on i386, x86_64 and powerpc 2007-07-17 21:42:44 -04:00
sysenter.c Remove fs.h from mm.h 2007-07-29 17:09:29 -07:00
time.c NTP: move the cmos update code into ntp.c 2007-07-21 17:49:15 -07:00
topology.c Replace remaining references to "driverfs" with "sysfs". 2007-02-17 19:13:42 +01:00
trampoline.S [PATCH] i386: Rename boot_gdt_table to boot_gdt 2007-05-02 19:27:10 +02:00
traps.c x86: Stop MCEs and NMIs during code patching 2007-07-22 11:03:37 -07:00
tsc_sync.c [PATCH] x86: rewrite SMP TSC sync code 2007-02-16 08:13:57 -08:00
tsc.c sched: sched_clock_idle_[sleep|wakeup]_event() 2007-08-23 15:18:02 +02:00
vm86.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
vmi.c i386: Make patching more robust, fix paravirt issue 2007-08-11 15:58:13 -07:00
vmiclock.c i386: move PIT function declarations and constants to correct header file 2007-07-21 18:37:14 -07:00
vmlinux.lds.S i386: Put allocated ELF notes in read-only data segment 2007-07-19 10:04:47 -07:00
vsyscall-int80.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vsyscall-note.S xen: disable vdso "nosegneg" on native boot 2007-07-20 08:44:19 -07:00
vsyscall-sigreturn.S [PATCH] Mark unwind info for signal trampolines in vDSOs 2006-03-31 12:18:52 -08:00
vsyscall-sysenter.S [PATCH] vdso: randomize the i386 vDSO by moving it into a vma 2006-06-27 17:32:38 -07:00
vsyscall.lds.S [PATCH] i386: VDSO_PRELINK warning fix 2007-05-02 19:27:09 +02:00
vsyscall.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00