OGAWA Hirofumi dbffa47161 [PATCH] PM-Timer: don't use workaround if chipset is not buggy ... Current timer_pm.c reads I/O port triple times, in order to avoid the bug of chipset. But I/O port is slow. 2.6.16 (pmtmr) Simple gettimeofday: 3.6532 microseconds 2.6.16+patch (pmtmr) Simple gettimeofday: 1.4582 microseconds [if chip is buggy, probably it will be 7us or more in 4.2% of probability.] This patch adds blacklist of buggy chip, and if chip is not buggy, this uses fast normal version instead of slow workaround version. If chip is buggy, warnings "pmtmr is slow". But sounds like there is gray zone. I found the PIIX4 errata, but I couldn't find the ICH4 errata. But some motherboard seems to have problem. So, if we found a ICH4, generate warnings, and use a workaround version. If user's ICH4 is good, the user can specify the "pmtmr_good" boot parameter to use fast version. Acked-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-03-27 08:44:37 -08:00
..
boot	[PATCH] x86: "make isoimage" support; FDINITRD= support; minor cleanups	2006-03-26 08:56:53 -08:00
crypto	[CRYPTO] aes-i586: Remove unused variable ls_tab	2006-01-09 14:15:53 -08:00
kernel	[PATCH] PM-Timer: don't use workaround if chipset is not buggy	2006-03-27 08:44:37 -08:00
lib	[LIB]: Consolidate _atomic_dec_and_lock()	2005-09-14 21:47:01 -07:00
mach-default	[PATCH] Fix topology.c location	2006-02-24 14:31:39 -08:00
mach-es7000	[PATCH] Compilation fix for ES7000 when no ACPI is specified in config (i386)	2006-03-23 07:38:04 -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] kill include/linux/platform.h, default_idle() cleanup	2006-03-24 07:33:21 -08:00
mach-voyager	[PATCH] fix voyager after topology.c move	2006-02-26 19:10:30 -08:00
math-emu	[PATCH] i386: inline assembler: cleanup and encapsulate descriptor and task register management	2005-09-05 00:06:11 -07:00
mm	[PATCH] pause_on_oops command line option	2006-03-23 07:38:16 -08:00
oprofile	[PATCH] more for_each_cpu() conversions	2006-03-23 07:38:17 -08:00
pci	[PATCH] PCI: PCI/Cardbus cards hidden, needs pci=assign-busses to fix	2006-03-23 14:35:14 -08:00
power	[PATCH] x86: add MCE resume	2005-11-07 07:53:30 -08:00
defconfig	update the i386 defconfig	2006-03-20 20:14:06 +01:00
Kconfig	[PATCH] bitops: i386: use generic bitops	2006-03-26 08:57:12 -08:00
Kconfig.cpu	[PATCH] Base support for AMD Geode GX/LX processors	2006-01-06 08:33:38 -08:00
Kconfig.debug	[PATCH] kconfig: clarify memory debug options	2006-03-25 08:22:54 -08:00
Makefile	[PATCH] x86: "make isoimage" support; FDINITRD= support; minor cleanups	2006-03-26 08:56:53 -08:00
Makefile.cpu	[PATCH] x86-64: Use -mtune=generic for generic kernels	2006-03-25 09:10:52 -08:00