]> nv-tegra.nvidia Code Review - linux-3.10.git/commit
[PATCH] i386: fix hpet for systems that don't support legacy replacement
authorjohn stultz <johnstul@us.ibm.com>
Sun, 1 May 2005 15:58:50 +0000 (08:58 -0700)
committerLinus Torvalds <torvalds@ppc970.osdl.org>
Sun, 1 May 2005 15:58:50 +0000 (08:58 -0700)
commit35492df5ae0f36f717448b2aea908d3a8891d1c4
tree4b9ebb20ec019daf301eef37fd6c7b75a7ea7de9
parent5b7abc6fdcaf103f15e06c518ef0aec02a9c00e7
[PATCH] i386: fix hpet for systems that don't support legacy replacement

Currently the i386 HPET code assumes the entire HPET implementation from
the spec is present.  This breaks on boxes that do not implement the
optional legacy timer replacement functionality portion of the spec.

This patch, which is very similar to my x86-64 patch for the same issue,
fixes the problem allowing i386 systems that cannot use the HPET for the
timer interrupt and RTC to still use the HPET as a time source.  I've
tested this patch on a system systems without HPET, with HPET but without
legacy timer replacement, as well as HPET with legacy timer replacement.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/i386/kernel/time.c
arch/i386/kernel/time_hpet.c
arch/i386/kernel/timers/timer_hpet.c
arch/i386/kernel/timers/timer_tsc.c
include/asm-i386/hpet.h