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Andi Kleen 0c3749c41f [PATCH] x86_64: Calibrate APIC timer using PM timer 
On some broken motherboards (at least one NForce3 based AMD64 laptop)
the PIT timer runs at a incorrect frequency.  This patch adds a new
option "apicpmtimer" that allows to use the APIC timer and calibrate it
using the PMTimer.  It requires the earlier patch that allows to run the
main timer from the APIC.

Specifying apicpmtimer implies apicmaintimer.

The option defaults to off for now.

I tested it on a few systems and the resulting APIC timer frequencies
were usually a bit off, but always <1%, which should be tolerable.

TBD figure out heuristic to enable this automatically on the affected
systems TBD perhaps do it on all NForce3s or using DMI?

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-04 16:43:15 -08:00
..
8253pit.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
a.out.h [PATCH] x86_64: TASK_SIZE fixes for compatibility mode processes 2005-06-21 18:46:12 -07:00
acpi.h [ACPI] delete CONFIG_ACPI_PCI 2005-08-25 12:40:44 -04:00
agp.h [PATCH] AGP fix for Xen VMM 2005-06-07 12:35:43 -07:00
apic.h [PATCH] x86_64: Allow to run main time keeping from the local APIC interrupt 2006-02-04 16:43:13 -08:00
apicdef.h [PATCH] x86_64: x86_64 write apic id fix 2006-01-11 19:04:57 -08:00
atomic.h [PATCH] EDAC: core EDAC support code 2006-01-18 19:20:31 -08:00
auxvec.h [PATCH] auxiliary vector cleanups 2005-09-07 16:57:21 -07:00
bitops.h [PATCH] x86_64: fls in asm for x86_64 2006-01-11 19:04:50 -08:00
boot.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bootsetup.h [PATCH] Increase number of e820 entries hard limit from 32 to 128 2005-05-01 08:58:51 -07:00
bug.h [PATCH] x86-64: reduce x86-64 bug frame by 4 bytes 2005-09-12 10:50:58 -07:00
bugs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
byteorder.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cache.h [PATCH] x86_64: Inclusion of ScaleMP vSMP architecture patches - vsmp_align 2006-01-11 19:05:01 -08:00
cacheflush.h [PATCH] x86/x86_64: mark rodata section read-only: x86-64 support 2006-01-06 08:33:36 -08:00
calling.h [PATCH] x86-64: Fix CFI information 2005-09-12 10:50:56 -07:00
checksum.h [NET]: Fix ipl=>ihl typo in ip_fast_csum 2005-08-29 16:02:48 -07:00
compat.h [PATCH] amd64: task_pt_regs() 2006-01-12 09:08:51 -08:00
cpu.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cpufeature.h [PATCH] x86_64: Undo the earlier changes to remove unrolled copy/memset functions 2006-02-04 16:43:13 -08:00
cputime.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
current.h kbuild: alpha,x86_64 use generic asm-offsets.h support 2005-09-09 21:28:48 +02:00
debugreg.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
delay.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
desc.h [PATCH] x86_64: Align and pad x86_64 GDT on page boundary 2006-01-11 19:04:53 -08:00
div64.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dma-mapping.h [PATCH] x86_64: Use function pointers to call DMA mapping functions 2006-01-11 19:04:55 -08:00
dma.h [PATCH] x86_64: Add 4GB DMA32 zone 2005-11-14 19:55:13 -08:00
dwarf2.h [PATCH] x86_64: Separate CONFIG_UNWIND_INFO from CONFIG_DEBUG_INFO 2006-01-11 19:01:10 -08:00
e820.h [PATCH] kdump: x86_64: add memmmap command line option 2006-01-10 08:01:27 -08:00
edac.h [PATCH] EDAC: core EDAC support code 2006-01-18 19:20:31 -08:00
elf.h [PATCH] fix remaining missing includes 2005-11-07 07:53:41 -08:00
emergency-restart.h [PATCH] x86_64: Implemenent machine_emergency_restart 2005-07-26 14:35:42 -07:00
errno.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fcntl.h [PATCH] Clean up struct flock definitions 2005-09-07 16:57:38 -07:00
fixmap.h [PATCH] mark several functions __always_inline 2006-01-14 18:27:15 -08:00
floppy.h [PATCH] make some things static 2005-05-05 16:36:47 -07:00
fpu32.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
futex.h [PATCH] FUTEX_WAKE_OP: pthread_cond_signal() speedup 2005-09-07 16:57:17 -07:00
gart-mapping.h [PATCH] x86_64: Use function pointers to call DMA mapping functions 2006-01-11 19:04:55 -08:00
genapic.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hardirq.h [PATCH] x86-64: Some cleanup and optimization to the processor data area. 2005-09-12 10:49:58 -07:00
hpet.h [PATCH] x86_64: Adjust, correct, and complete the HPET definitions for x86-64. 2005-11-14 19:55:13 -08:00
hw_irq.h [PATCH] x86_64: Remove useless KDB vector 2006-01-11 19:05:00 -08:00
i387.h [PATCH] amd64: task_thread_info() 2006-01-12 09:08:51 -08:00
ia32.h [PATCH] x86_64: Flexmap for 32bit and randomized mappings for 64bit 2006-01-16 23:18:35 -08:00
ia32_unistd.h [PATCH] prototypes for *at functions & typo fix 2006-02-01 08:53:09 -08:00
ide.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
idle.h [PATCH] x86_64: Add idle notifiers 2006-01-11 19:04:55 -08:00
io.h [PATCH] x86_64: Generalize DMI and enable for x86-64 2006-01-11 19:04:51 -08:00
io_apic.h [ACPI] delete CONFIG_ACPI_BOOT 2005-08-24 12:08:54 -04:00
ioctl.h [PATCH] Generic ioctl.h 2006-01-10 08:01:34 -08:00
ioctls.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipcbuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipi.h [PATCH] x86_64: Remove useless KDB vector 2006-01-11 19:05:00 -08:00
irq.h [PATCH] x86_64: Increase NR_IRQ_VECTORS to 32 * NR_CPUS 2006-01-16 11:27:59 -08:00
kdebug.h [PATCH] x86_64: make trap information available to die notification handlers 2006-01-11 19:01:10 -08:00
kexec.h [PATCH] Compilation of kexec/kdump broken 2006-02-03 08:32:09 -08:00
kmap_types.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
kprobes.h [PATCH] kprobes: fix build breakage 2006-01-10 08:01:40 -08:00
ldt.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
linkage.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
local.h [PATCH] x86-64: clean up local_add/sub arguments 2005-09-12 10:50:59 -07:00
mach_apic.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mc146818rtc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mce.h [PATCH] x86_64: Support for AMD specific MCE Threshold. 2005-11-14 19:55:13 -08:00
mman.h [PATCH] madvise(MADV_REMOVE): remove pages from tmpfs shm backing store 2006-01-06 08:33:22 -08:00
mmsegment.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mmu.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mmu_context.h [PATCH] x86_64: cleanup enter_lazy_tlb() 2006-01-11 19:05:00 -08:00
mmx.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mmzone.h [PATCH] x86_64: Move NUMA page_to_pfn/pfn_to_page functions out of line 2006-01-11 19:05:01 -08:00
module.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mpspec.h Pull pnpacpi into acpica branch 2006-01-07 03:50:18 -05:00
msgbuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
msi.h [PATCH] PCI: Change MSI to use physical delivery mode always 2005-11-10 16:09:18 -08:00
msr.h [PATCH] Fix x86_64/msr.h interface to agree with i386/msr.h 2005-11-20 11:52:59 -08:00
mtrr.h [PATCH] Clean up mtrr compat ioctl code 2005-10-30 17:37:13 -08:00
mutex.h Fix mutex_trylock() copy-and-paste bug (x86, x86-64, generic mutex-dec.h) 2006-01-11 15:50:47 -08:00
namei.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nmi.h [PATCH] x86_64: Collected NMI watchdog fixes. 2005-05-17 07:59:16 -07:00
node.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
numa.h [PATCH] x86_64: Fix the node cpumask of a cpu going down 2006-02-04 16:43:13 -08:00
numnodes.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
page.h [PATCH] x86_64: Allow nesting of int3 by default for kprobes 2006-01-16 11:27:58 -08:00
param.h [PATCH] Avoid namespace pollution in <asm/param.h> 2006-01-02 08:38:38 -08:00
parport.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci-direct.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci.h [PATCH] x86_64: Use function pointers to call DMA mapping functions 2006-01-11 19:04:55 -08:00
pda.h [PATCH] x86_64: Allocate PDAs in the local node 2006-01-11 19:04:59 -08:00
percpu.h [PATCH] x86_64: Node local pda take 2 -- cpu_pda preparation 2006-01-11 19:04:59 -08:00
pgalloc.h [PATCH] Replace extern inline with static inline in asm-x86_64/* 2005-09-12 10:50:56 -07:00
pgtable.h [PATCH] x86_64: "extern inline" -> "static inline" in pgtable.h 2006-01-11 19:04:53 -08:00
poll.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
posix_types.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
prctl.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
processor.h [PATCH] x86_64: Flexmap for 32bit and randomized mappings for 64bit 2006-01-16 23:18:35 -08:00
proto.h [PATCH] x86_64: Calibrate APIC timer using PM timer 2006-02-04 16:43:15 -08:00
ptrace.h [PATCH] xen: x86: Rename usermode macro 2005-06-23 09:45:14 -07:00
resource.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rtc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rwlock.h [PATCH] Fix typo in x86_64 __build_write_lock_const assembly 2005-12-24 12:30:22 -08:00
scatterlist.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
seccomp.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sections.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
segment.h [PATCH] x86_64: Remove unused segments 2006-01-11 19:05:01 -08:00
semaphore.h [PATCH] semaphore: Remove __MUTEX_INITIALIZER() 2005-10-30 17:37:27 -08:00
sembuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
serial.h [PATCH] Serial: Split 8250 port table (part 2) 2005-06-29 18:45:19 +01:00
setup.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
shmbuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
shmparam.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sigcontext.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sigcontext32.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
siginfo.h [PATCH] consolidate SIGEV_PAD_SIZE 2005-05-01 08:59:08 -07:00
signal.h [PATCH] Replace extern inline with static inline in asm-x86_64/* 2005-09-12 10:50:56 -07:00
smp.h [PATCH] x86_64: Fix compile error with !CONFIG_COMPAT 2006-01-11 19:04:57 -08:00
socket.h [NET]: Introduce SO_{SND,RCV}BUFFORCE socket options 2005-08-29 15:31:35 -07:00
sockios.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sparsemem.h [PATCH] add x86-64 specific support for sparsemem 2005-06-23 09:45:07 -07:00
spinlock.h [PATCH] x86_64: Use int operations in spinlocks to support more than 128 CPUs spinning. 2005-11-14 19:55:15 -08:00
spinlock_types.h [PATCH] spinlock consolidation 2005-09-10 10:06:21 -07:00
stat.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
statfs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
string.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
suspend.h [PATCH] swsusp: clean assembly parts 2005-06-25 16:24:33 -07:00
swiotlb.h [PATCH] x86_64: Use function pointers to call DMA mapping functions 2006-01-11 19:04:55 -08:00
system.h [PATCH] x86_64: Fix VSMP build 2006-01-16 23:18:35 -08:00
termbits.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
termios.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
thread_info.h [PATCH] death of get_thread_info/put_thread_info 2006-01-12 09:08:59 -08:00
timex.h [PATCH] x86_64: On Intel CPUs don't do an additional CPU sync before RDTSC 2006-01-11 19:04:58 -08:00
tlb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tlbflush.h [PATCH] x86-64: Increase TLB flush array size 2005-09-12 10:49:58 -07:00
topology.h [PATCH] Export cpu topology in sysfs 2006-02-03 08:32:09 -08:00
types.h [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
uaccess.h [PATCH] mark several functions __always_inline 2006-01-14 18:27:15 -08:00
ucontext.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unaligned.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unistd.h [PATCH] vfs: *at functions: x86_64 2006-01-18 19:20:29 -08:00
user.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
user32.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vga.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vsyscall.h [PATCH] x86_64: sparse warning cleanups 2006-01-11 19:05:02 -08:00
vsyscall32.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xor.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00