kevin/linux
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b0423a0d9c
linux/arch/i386/kernel
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Clemens Ladisch 7811fb8f40 [PATCH] hpet-RTC: cache the comparator register 
Reads from an HPET register require a round trip to the south bridge and are
almost as slow as PCI reads.  By caching the last value we've written to the
comparator register, we can eliminate all HPET reads from the fast path in the
emulated RTC interrupt handler.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-30 17:37:30 -08:00
..
acpi [PATCH] i386: include linux/irq.h rather than asm/hw_irq.h 2005-09-30 10:58:37 -07:00
cpu [PATCH] create and destroy cache sysfs entries based on cpu notifiers 2005-10-30 17:37:14 -08:00
timers [PATCH] i386 and x86_64 TSC set_cyc2ns_scale imprecision 2005-10-30 17:37:11 -08:00
apic.c [PATCH] kdump/i386: apic verification failure fix 2005-10-30 17:37:13 -08:00
apm.c [PATCH] x86: add an accessor function for getting the per-CPU gdt 2005-10-30 17:37:12 -08:00
asm-offsets.c
bootflag.c
cpuid.c [PATCH] Driver Core: fix up all callers of class_device_create() 2005-10-28 09:52:52 -07:00
crash.c [PATCH] i386 kexec-on-panic: Don't shutdown the apics. 2005-10-30 17:37:13 -08:00
dmi_scan.c [PATCH] fix: dmi_check_system 2005-09-07 16:57:44 -07:00
doublefault.c [PATCH] i386: inline assembler: cleanup and encapsulate descriptor and task register management 2005-09-05 00:06:11 -07:00
early_printk.c
efi_stub.S
efi.c [PATCH] i386: inline assembler: cleanup and encapsulate descriptor and task register management 2005-09-05 00:06:11 -07:00
entry.S [PATCH] i386: Don't miss pending signals returning to user mode after signal processing 2005-09-12 07:52:16 -07:00
head.S kbuild: full dependency check on asm-offsets.h 2005-09-09 19:28:28 +02:00
i386_ksyms.c
i387.c x86: make restore_fpu() use alternative assembler instructions 2005-07-22 16:06:16 -04:00
i8237.c [PATCH] ISA DMA suspend for i386 2005-09-05 00:06:14 -07:00
i8259.c [PATCH] i386: move apic init in init_IRQs 2005-10-30 17:37:13 -08:00
init_task.c
io_apic.c [PATCH] i386: move apic init in init_IRQs 2005-10-30 17:37:13 -08:00
ioport.c [PATCH] x86: make IOPL explicit 2005-09-05 00:06:12 -07:00
irq.c [PATCH] x86: hot plug CPU to support physical add of new processors 2005-10-30 17:37:12 -08:00
kprobes.c [PATCH] kprobes: fix bug when probed on task and isr functions 2005-09-07 16:58:01 -07:00
ldt.c [PATCH] x86: introduce a write acessor for updating the current LDT 2005-09-05 00:06:13 -07:00
machine_kexec.c [PATCH] x86: more asm cleanups 2005-09-05 00:06:12 -07:00
Makefile Merge linux-2.6 with linux-acpi-2.6 2005-09-08 01:45:47 -04:00
mca.c
microcode.c [PATCH] i386: cleanup serialize msr 2005-09-05 00:06:11 -07:00
module.c
mpparse.c [PATCH] i386 mpparse: Only ignore lapic information we can't store 2005-10-30 17:37:13 -08:00
msr.c [PATCH] Driver Core: fix up all callers of class_device_create() 2005-10-28 09:52:52 -07:00
nmi.c [PATCH] i386 nmi_watchdog: Merge check_nmi_watchdog fixes from x86_64 2005-10-30 17:37:13 -08:00
numaq.c [PATCH] re-disable TSC on NUMAQ 2005-07-28 21:46:05 -07:00
pci-dma.c [PATCH] gfp flags annotations - part 1 2005-10-08 15:00:57 -07:00
process.c [PATCH] useless includes of linux/irq.h in arch/i386 2005-09-26 18:29:50 -07:00
ptrace.c [PATCH] unify sys_ptrace prototype 2005-10-30 17:37:20 -08:00
quirks.c
reboot_fixups.c [PATCH] sparse cleanups: NULL pointers, C99 struct init. 2005-10-30 17:37:29 -08:00
reboot.c [PATCH] arch/i386: Replace custom macro with isdigit() 2005-09-13 08:22:33 -07:00
relocate_kernel.S [PATCH] kexec: x86 kexec core 2005-06-25 16:24:49 -07:00
scx200.c
semaphore.c [PATCH] unify x86/x86-64 semaphore code 2005-09-05 00:06:14 -07:00
setup.c [PATCH] fixup bogus e820 entry with mem= 2005-10-30 17:37:12 -08:00
sigframe.h [PATCH] __user annotations for pointers in i386 sigframe 2005-09-09 10:31:59 -07:00
signal.c [PATCH] i386: fix stack alignment for signal handlers 2005-10-10 08:45:06 -07:00
smp.c [PATCH] useless includes of linux/irq.h in arch/i386 2005-09-26 18:29:50 -07:00
smpboot.c [PATCH] i386: move apic init in init_IRQs 2005-10-30 17:37:13 -08:00
srat.c [PATCH] i386: srat on non-acpi hw fix 2005-10-30 17:37:13 -08:00
summit.c
sys_i386.c
syscall_table.S [PATCH] remove sys_set_zone_reclaim() 2005-08-01 10:03:56 -07:00
sysenter.c
time_hpet.c [PATCH] hpet-RTC: cache the comparator register 2005-10-30 17:37:30 -08:00
time.c [PATCH] jiffies_64 cleanup 2005-10-30 17:37:25 -08:00
trampoline.S
traps.c [PATCH] x86: initialise tss->io_bitmap_owner to something 2005-10-30 17:37:11 -08:00
vm86.c [PATCH] mm: i386 sh sh64 ready for split ptlock 2005-10-29 21:40:41 -07:00
vmlinux.lds.S [PATCH] i386 / uml: add dwarf sections to static link script 2005-09-10 12:00:17 -07:00
vsyscall-int80.S
vsyscall-note.S
vsyscall-sigreturn.S kbuild: full dependency check on asm-offsets.h 2005-09-09 19:28:28 +02:00
vsyscall-sysenter.S
vsyscall.lds.S kbuild: full dependency check on asm-offsets.h 2005-09-09 19:28:28 +02:00
vsyscall.S