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From: Stephane Eranian <eranian@google.com>
To: linux-kernel@vger.kernel.org
Cc: peterz@infradead.org, acme@redhat.com, jolsa@redhat.com,
	kim.phillips@amd.com, namhyung@kernel.org, irogers@google.com
Subject: [PATCH v1 02/13] x86/cpufeatures: add AMD Fam19h Branch Sampling feature
Date: Thu,  9 Sep 2021 00:56:49 -0700	[thread overview]
Message-ID: <20210909075700.4025355-3-eranian@google.com> (raw)
In-Reply-To: <20210909075700.4025355-1-eranian@google.com>

This patch adds a cpu feature for AMD Fam19h Branch Sampling feature as bit 31
of EBX on CPUID leaf function 0x80000008.

Signed-off-by: Stephane Eranian <eranian@google.com>
---
 arch/x86/include/asm/cpufeatures.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index d0ce5cfd3ac1..74fd7ab7d74d 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -313,6 +313,7 @@
 #define X86_FEATURE_AMD_SSBD		(13*32+24) /* "" Speculative Store Bypass Disable */
 #define X86_FEATURE_VIRT_SSBD		(13*32+25) /* Virtualized Speculative Store Bypass Disable */
 #define X86_FEATURE_AMD_SSB_NO		(13*32+26) /* "" Speculative Store Bypass is fixed in hardware. */
+#define X86_FEATURE_AMD_BRS		(13*32+31) /* Branch Sampling available */
 
 /* Thermal and Power Management Leaf, CPUID level 0x00000006 (EAX), word 14 */
 #define X86_FEATURE_DTHERM		(14*32+ 0) /* Digital Thermal Sensor */
-- 
2.33.0.153.gba50c8fa24-goog


  parent reply	other threads:[~2021-09-09  7:58 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-09  7:56 [PATCH v1 00/13] perf/x86/amd: Add AMD Fam19h Branch Sampling support Stephane Eranian
2021-09-09  7:56 ` [PATCH v1 01/13] perf/core: add union to struct perf_branch_entry Stephane Eranian
2021-09-09 19:03   ` Peter Zijlstra
2021-09-10 12:09     ` Michael Ellerman
2021-09-10 14:16       ` Michael Ellerman
2021-09-15  6:03         ` Stephane Eranian
2021-09-17  6:37           ` Madhavan Srinivasan
2021-09-17  6:48             ` Stephane Eranian
2021-09-17  7:05               ` Michael Ellerman
2021-09-17  7:39                 ` Stephane Eranian
2021-09-17 12:38                   ` Michael Ellerman
2021-09-17 16:42                     ` Stephane Eranian
2021-09-19 10:27                       ` Michael Ellerman
2021-09-09  7:56 ` Stephane Eranian [this message]
2021-09-09  7:56 ` [PATCH v1 03/13] perf/x86/amd: add AMD Fam19h Branch Sampling support Stephane Eranian
2021-09-09 10:44   ` kernel test robot
2021-09-09 15:33   ` kernel test robot
2021-09-09  7:56 ` [PATCH v1 04/13] perf/x86/amd: add branch-brs helper event for Fam19h BRS Stephane Eranian
2021-09-09  7:56 ` [PATCH v1 05/13] perf/x86/amd: enable branch sampling priv level filtering Stephane Eranian
2021-09-09  7:56 ` [PATCH v1 06/13] perf/x86/amd: add AMD branch sampling period adjustment Stephane Eranian
2021-09-09  7:56 ` [PATCH v1 07/13] perf/core: add idle hooks Stephane Eranian
2021-09-09  9:15   ` Peter Zijlstra
2021-09-09 10:42   ` kernel test robot
2021-09-09 11:02   ` kernel test robot
2021-09-09  7:56 ` [PATCH v1 08/13] perf/x86/core: " Stephane Eranian
2021-09-09  9:16   ` Peter Zijlstra
2021-09-09  7:56 ` [PATCH v1 09/13] perf/x86/amd: add idle hooks for branch sampling Stephane Eranian
2021-09-09  9:20   ` Peter Zijlstra
2021-09-09  7:56 ` [PATCH v1 10/13] perf tools: add branch-brs as a new event Stephane Eranian
2021-09-09  7:56 ` [PATCH v1 11/13] perf tools: improve IBS error handling Stephane Eranian
2021-09-13 19:34   ` Arnaldo Carvalho de Melo
2021-10-04 21:57     ` Kim Phillips
2021-10-04 23:44       ` Arnaldo Carvalho de Melo
2021-09-09  7:56 ` [PATCH v1 12/13] perf tools: improve error handling of AMD Branch Sampling Stephane Eranian
2021-10-04 21:57   ` Kim Phillips
2021-09-09  7:57 ` [PATCH v1 13/13] perf report: add addr_from/addr_to sort dimensions Stephane Eranian
2021-09-09  8:55 ` [PATCH v1 00/13] perf/x86/amd: Add AMD Fam19h Branch Sampling support Peter Zijlstra
2021-09-15  5:55   ` Stephane Eranian
2021-09-15  9:04     ` Peter Zijlstra
2021-10-28 18:30       ` Stephane Eranian
2021-09-27 20:17     ` Song Liu

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