linux/arch/x86_64
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] x86-64: Fix gcc 4 warnings about pointer signedness 2005-09-12 10:50:56 -07:00
crypto
ia32 [PATCH] Remove orphaned TIOCGDEV compat ioctl 2005-10-30 17:37:25 -08:00
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
mm [PATCH] mm: init_mm without ptlock 2005-10-29 21:40:40 -07:00
oprofile
pci [PATCH] x86-64: Use ACPI PXM to parse PCI<->node assignments 2005-09-12 10:49:57 -07:00
defconfig [PATCH] x86-64: Update defconfig 2005-09-12 10:49:55 -07:00
Kconfig [PATCH] update URL for HPET spec. 2005-09-21 10:12:18 -07:00
Kconfig.debug
Makefile