Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1199550

[tip:perf/core] x86: Add new MSRs and MSR bits used for Intel Skylake PMU support

From tip-bot for Andi Kleen <tipbot@zytor.com>
Newsgroups linux.kernel
Subject [tip:perf/core] x86: Add new MSRs and MSR bits used for Intel Skylake PMU support
Date 2015-08-04 11:00 +0200
Message-ID <pTGeL-5Af-27@gated-at.bofh.it> (permalink)
References <poF5f-29E-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


Commit-ID:  b83ff1c8617aac03a1cf807aafa848fe0f0908f2
Gitweb:     http://git.kernel.org/tip/b83ff1c8617aac03a1cf807aafa848fe0f0908f2
Author:     Andi Kleen <ak@linux.intel.com>
AuthorDate: Sun, 10 May 2015 12:22:41 -0700
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Tue, 4 Aug 2015 10:16:56 +0200

x86: Add new MSRs and MSR bits used for Intel Skylake PMU support

Add new MSRs (LBR_INFO) and some new MSR bits used by the Intel Skylake
PMU driver.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: eranian@google.com
Link: http://lkml.kernel.org/r/1431285767-27027-4-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/msr-index.h  | 6 ++++++
 arch/x86/include/asm/perf_event.h | 7 +++++++
 2 files changed, 13 insertions(+)

diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index c665d34..fcd17c1 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -73,6 +73,12 @@
 #define MSR_LBR_CORE_FROM		0x00000040
 #define MSR_LBR_CORE_TO			0x00000060
 
+#define MSR_LBR_INFO_0			0x00000dc0 /* ... 0xddf for _31 */
+#define LBR_INFO_MISPRED		BIT_ULL(63)
+#define LBR_INFO_IN_TX			BIT_ULL(62)
+#define LBR_INFO_ABORT			BIT_ULL(61)
+#define LBR_INFO_CYCLES			0xffff
+
 #define MSR_IA32_PEBS_ENABLE		0x000003f1
 #define MSR_IA32_DS_AREA		0x00000600
 #define MSR_IA32_PERF_CAPABILITIES	0x00000345
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h
index dc0f6ed..7bcb861 100644
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -159,6 +159,13 @@ struct x86_pmu_capability {
  */
 #define INTEL_PMC_IDX_FIXED_BTS				(INTEL_PMC_IDX_FIXED + 16)
 
+#define GLOBAL_STATUS_COND_CHG				BIT_ULL(63)
+#define GLOBAL_STATUS_BUFFER_OVF			BIT_ULL(62)
+#define GLOBAL_STATUS_UNC_OVF				BIT_ULL(61)
+#define GLOBAL_STATUS_ASIF				BIT_ULL(60)
+#define GLOBAL_STATUS_COUNTERS_FROZEN			BIT_ULL(59)
+#define GLOBAL_STATUS_LBRS_FROZEN			BIT_ULL(58)
+
 /*
  * IBS cpuid feature detection
  */
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next | Find similar | Unroll thread


Thread

[tip:perf/core] x86:   Add new MSRs and MSR bits used for Intel Skylake PMU support tip-bot for Andi Kleen <tipbot@zytor.com> - 2015-08-04 11:00 +0200

csiph-web