linux/arch/i386
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
..
boot [PATCH] fbdev: Resurrect hooks to get EDID from firmware 2005-09-09 13:57:59 -07:00
crypto [PATCH] arch/i386/crypto/aes.c: fix sparse warnings 2005-06-25 16:24:59 -07:00
kernel [PATCH] hpet-RTC: cache the comparator register 2005-10-30 17:37:30 -08:00
lib [LIB]: Consolidate _atomic_dec_and_lock() 2005-09-14 21:47:01 -07:00
mach-default [PATCH] useless includes of linux/irq.h in arch/i386 2005-09-26 18:29:50 -07:00
mach-es7000 [PATCH] ES7000 platform update 2005-10-30 17:37:12 -08:00
mach-generic [PATCH] x86: sutomatically enable bigsmp when we have more than 8 CPUs 2005-09-05 00:06:10 -07:00
mach-visws [PATCH] useless includes of linux/irq.h in arch/i386 2005-09-26 18:29:50 -07:00
mach-voyager [PATCH] useless includes of linux/irq.h in arch/i386 2005-09-26 18:29:50 -07:00
math-emu [PATCH] i386: inline assembler: cleanup and encapsulate descriptor and task register management 2005-09-05 00:06:11 -07:00
mm [PATCH] x86: add an accessor function for getting the per-CPU gdt 2005-10-30 17:37:12 -08:00
oprofile [PATCH] mm: kill check_user_page_readable 2005-10-29 21:40:41 -07:00
pci [PATCH] asus vt8235 router buggy bios workaround 2005-10-30 17:37:12 -08:00
power [PATCH] FPU context corrupted after resume 2005-10-30 17:37:11 -08:00
defconfig [ACPI] delete CONFIG_ACPI_PCI 2005-08-25 12:40:44 -04:00
Kconfig [PATCH] uml: reuse i386 cpu-specific tuning 2005-10-30 17:37:16 -08:00
Kconfig.cpu [PATCH] uml: reuse i386 cpu-specific tuning 2005-10-30 17:37:16 -08:00
Kconfig.debug [PATCH] i386: add missing Kconfig help text 2005-07-27 16:25:58 -07:00
Makefile [PATCH] uml: reuse i386 cpu-specific tuning 2005-10-30 17:37:16 -08:00
Makefile.cpu [PATCH] i386: use -mcpu, not -mtune, for GCCs older than 3.4 2005-10-30 17:37:16 -08:00