Date: Fri, 19 Nov 2010 15:07:36 +0000 (UTC) From: Andriy Gapon <avg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r215524 - in head/sys: amd64/include i386/include Message-ID: <201011191507.oAJF7ai1077993@svn.freebsd.org>
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Author: avg Date: Fri Nov 19 15:07:36 2010 New Revision: 215524 URL: http://svn.freebsd.org/changeset/base/215524 Log: specialreg.h: add definitions for MPERF/APERF pair of MSRs These MSRs can be used to determine actual (average) performance as compared to a maximum defined performance. Availability of these MSRs is indicated by bit0 in CPUID.6.ECX on both Intel and AMD processors. MFC after: 5 days Modified: head/sys/amd64/include/specialreg.h head/sys/i386/include/specialreg.h Modified: head/sys/amd64/include/specialreg.h ============================================================================== --- head/sys/amd64/include/specialreg.h Fri Nov 19 15:00:20 2010 (r215523) +++ head/sys/amd64/include/specialreg.h Fri Nov 19 15:07:36 2010 (r215524) @@ -240,6 +240,8 @@ #define MSR_BIOS_SIGN 0x08b #define MSR_PERFCTR0 0x0c1 #define MSR_PERFCTR1 0x0c2 +#define MSR_MPERF 0x0e7 +#define MSR_APERF 0x0e8 #define MSR_IA32_EXT_CONFIG 0x0ee /* Undocumented. Core Solo/Duo only */ #define MSR_MTRRcap 0x0fe #define MSR_BBL_CR_ADDR 0x116 Modified: head/sys/i386/include/specialreg.h ============================================================================== --- head/sys/i386/include/specialreg.h Fri Nov 19 15:00:20 2010 (r215523) +++ head/sys/i386/include/specialreg.h Fri Nov 19 15:07:36 2010 (r215524) @@ -246,6 +246,8 @@ #define MSR_BIOS_SIGN 0x08b #define MSR_PERFCTR0 0x0c1 #define MSR_PERFCTR1 0x0c2 +#define MSR_MPERF 0x0e7 +#define MSR_APERF 0x0e8 #define MSR_IA32_EXT_CONFIG 0x0ee /* Undocumented. Core Solo/Duo only */ #define MSR_MTRRcap 0x0fe #define MSR_BBL_CR_ADDR 0x116
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