0213df7431
AMD recently discovered that on some hardware, there is a race condition possible when a C-state change request goes onto the bus at the same time as a P-state change request. Both requests happen, but the southbridge hardware only acknowledges the C-state change. The PowerNow! driver is then stuck in a loop, waiting for the P-state change acknowledgement. The driver eventually times out, but can no longer perform P-state changes. It turns out the solution is to resend the P-state change, which the southbridge will acknowledge normally. Thanks to Johannes Winkelmann for reporting this and testing the fix. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
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cpufreq | ||
mcheck | ||
mtrr | ||
amd.c | ||
centaur.c | ||
changelog | ||
common.c | ||
cpu.h | ||
cyrix.c | ||
intel_cacheinfo.c | ||
intel.c | ||
Makefile | ||
nexgen.c | ||
proc.c | ||
rise.c | ||
transmeta.c | ||
umc.c |