From: Sonny Rao Date: Wed, 2 Aug 2006 04:20:09 +0000 (-0400) Subject: [POWERPC] fix PMU initialization on pseries lpar X-Git-Tag: v3.12-rc1~34163^2~43 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=dcc42f483d6808ba4d04af9da35e7e47b711f6c2;p=kernel%2Fkernel-generic.git [POWERPC] fix PMU initialization on pseries lpar We should not be calling power4_enable_pmcs() in pseries_lpar_enable_pmcs(); just doing the hypercall is sufficient. Prior to 2.6.15 we did not call power4_enable_pmcs() for an lpar. power4_enable_pmcs() tries to read the hid0 register which is no longer legal for an lpar in newer Power processors. Signed-off-by: Paul Mackerras --- diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 71c634e..31867a7 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -213,8 +213,6 @@ static void pseries_lpar_enable_pmcs(void) { unsigned long set, reset; - power4_enable_pmcs(); - set = 1UL << 63; reset = 0; plpar_hcall_norets(H_PERFMON, set, reset);