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From: kan.liang@linux.intel.com
To: peterz@infradead.org, mingo@redhat.com, acme@kernel.org,
	namhyung@kernel.org, tglx@linutronix.de,
	dave.hansen@linux.intel.com, irogers@google.com,
	adrian.hunter@intel.com, jolsa@kernel.org,
	alexander.shishkin@linux.intel.com, linux-kernel@vger.kernel.org
Cc: dapeng1.mi@linux.intel.com, ak@linux.intel.com,
	zide.chen@intel.com, mark.rutland@arm.com, broonie@kernel.org,
	ravi.bangoria@amd.com, eranian@google.com,
	Kan Liang <kan.liang@linux.intel.com>
Subject: [POC PATCH 15/17] tools headers: Sync with the kernel sources
Date: Fri, 15 Aug 2025 14:34:33 -0700	[thread overview]
Message-ID: <20250815213435.1702022-16-kan.liang@linux.intel.com> (raw)
In-Reply-To: <20250815213435.1702022-1-kan.liang@linux.intel.com>

From: Kan Liang <kan.liang@linux.intel.com>

Update include/uapi/linux/perf_event.h and
arch/x86/include/uapi/asm/perf_regs.h to support extended regs.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
---
 tools/arch/x86/include/uapi/asm/perf_regs.h | 44 ++++++++++++++++++-
 tools/include/uapi/linux/perf_event.h       | 47 ++++++++++++++++++---
 2 files changed, 84 insertions(+), 7 deletions(-)

diff --git a/tools/arch/x86/include/uapi/asm/perf_regs.h b/tools/arch/x86/include/uapi/asm/perf_regs.h
index 7c9d2bb3833b..4d88cb18acb9 100644
--- a/tools/arch/x86/include/uapi/asm/perf_regs.h
+++ b/tools/arch/x86/include/uapi/asm/perf_regs.h
@@ -27,11 +27,34 @@ enum perf_event_x86_regs {
 	PERF_REG_X86_R13,
 	PERF_REG_X86_R14,
 	PERF_REG_X86_R15,
+	/* Extended GPRs (EGPRs) */
+	PERF_REG_X86_R16,
+	PERF_REG_X86_R17,
+	PERF_REG_X86_R18,
+	PERF_REG_X86_R19,
+	PERF_REG_X86_R20,
+	PERF_REG_X86_R21,
+	PERF_REG_X86_R22,
+	PERF_REG_X86_R23,
+	PERF_REG_X86_R24,
+	PERF_REG_X86_R25,
+	PERF_REG_X86_R26,
+	PERF_REG_X86_R27,
+	PERF_REG_X86_R28,
+	PERF_REG_X86_R29,
+	PERF_REG_X86_R30,
+	PERF_REG_X86_R31,
 	/* These are the limits for the GPRs. */
 	PERF_REG_X86_32_MAX = PERF_REG_X86_GS + 1,
-	PERF_REG_X86_64_MAX = PERF_REG_X86_R15 + 1,
+	PERF_REG_X86_64_MAX = PERF_REG_X86_R31 + 1,
 
-	/* These all need two bits set because they are 128bit */
+	PERF_REG_X86_SSP,
+	PERF_REG_MISC_MAX = PERF_REG_X86_SSP + 1,
+
+	/*
+	 * These all need two bits set because they are 128bit.
+	 * These are only available when !PERF_SAMPLE_REGS_ABI_SIMD
+	 */
 	PERF_REG_X86_XMM0  = 32,
 	PERF_REG_X86_XMM1  = 34,
 	PERF_REG_X86_XMM2  = 36,
@@ -55,4 +78,21 @@ enum perf_event_x86_regs {
 
 #define PERF_REG_EXTENDED_MASK	(~((1ULL << PERF_REG_X86_XMM0) - 1))
 
+#define PERF_X86_EGPRS_MASK		GENMASK_ULL(PERF_REG_X86_R31, PERF_REG_X86_R16)
+
+#define PERF_X86_SIMD_PRED_REGS_MAX	8
+#define PERF_X86_SIMD_PRED_MASK		GENMASK(PERF_X86_SIMD_PRED_REGS_MAX - 1, 0)
+#define PERF_X86_SIMD_VEC_REGS_MAX	32
+#define PERF_X86_SIMD_VEC_MASK		GENMASK_ULL(PERF_X86_SIMD_VEC_REGS_MAX - 1, 0)
+
+#define PERF_X86_H16ZMM_BASE		16
+
+#define PERF_X86_OPMASK_QWORDS		1
+#define PERF_X86_XMM_QWORDS		2
+#define PERF_X86_YMM_QWORDS		4
+#define PERF_X86_YMMH_QWORDS		(PERF_X86_YMM_QWORDS / 2)
+#define PERF_X86_ZMM_QWORDS		8
+#define PERF_X86_ZMMH_QWORDS		(PERF_X86_ZMM_QWORDS / 2)
+#define PERF_X86_SIMD_QWORDS_MAX	PERF_X86_ZMM_QWORDS
+
 #endif /* _ASM_X86_PERF_REGS_H */
diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index 78a362b80027..2e9b16acbed6 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -313,9 +313,10 @@ enum {
  * Values to determine ABI of the registers dump.
  */
 enum perf_sample_regs_abi {
-	PERF_SAMPLE_REGS_ABI_NONE		= 0,
-	PERF_SAMPLE_REGS_ABI_32			= 1,
-	PERF_SAMPLE_REGS_ABI_64			= 2,
+	PERF_SAMPLE_REGS_ABI_NONE		= 0x00,
+	PERF_SAMPLE_REGS_ABI_32			= 0x01,
+	PERF_SAMPLE_REGS_ABI_64			= 0x02,
+	PERF_SAMPLE_REGS_ABI_SIMD		= 0x04,
 };
 
 /*
@@ -382,6 +383,7 @@ enum perf_event_read_format {
 #define PERF_ATTR_SIZE_VER6			120	/* Add: aux_sample_size */
 #define PERF_ATTR_SIZE_VER7			128	/* Add: sig_data */
 #define PERF_ATTR_SIZE_VER8			136	/* Add: config3 */
+#define PERF_ATTR_SIZE_VER9			168	/* Add: sample_simd_{pred,vec}_reg_* */
 
 /*
  * 'struct perf_event_attr' contains various attributes that define
@@ -543,6 +545,25 @@ struct perf_event_attr {
 	__u64	sig_data;
 
 	__u64	config3; /* extension of config2 */
+
+
+	/*
+	 * Defines set of SIMD registers to dump on samples.
+	 * The sample_simd_regs_enabled !=0 implies the
+	 * set of SIMD registers is used to config all SIMD registers.
+	 * If !sample_simd_regs_enabled, sample_regs_XXX may be used to
+	 * config some SIMD registers on X86.
+	 */
+	union {
+		__u16 sample_simd_regs_enabled;
+		__u16 sample_simd_pred_reg_qwords;
+	};
+	__u32 sample_simd_pred_reg_intr;
+	__u32 sample_simd_pred_reg_user;
+	__u16 sample_simd_vec_reg_qwords;
+	__u64 sample_simd_vec_reg_intr;
+	__u64 sample_simd_vec_reg_user;
+	__u32 __reserved_4;
 };
 
 /*
@@ -1016,7 +1037,15 @@ enum perf_event_type {
 	 *      } && PERF_SAMPLE_BRANCH_STACK
 	 *
 	 *	{ u64			abi; # enum perf_sample_regs_abi
-	 *	  u64			regs[weight(mask)]; } && PERF_SAMPLE_REGS_USER
+	 *	  u64			regs[weight(mask)];
+	 *	  struct {
+	 *		u16 nr_vectors;
+	 *		u16 vector_qwords;
+	 *		u16 nr_pred;
+	 *		u16 pred_qwords;
+	 *		u64 data[nr_vectors * vector_qwords + nr_pred * pred_qwords];
+	 *	  } && (abi & PERF_SAMPLE_REGS_ABI_SIMD)
+	 *	} && PERF_SAMPLE_REGS_USER
 	 *
 	 *	{ u64			size;
 	 *	  char			data[size];
@@ -1043,7 +1072,15 @@ enum perf_event_type {
 	 *	{ u64			data_src; } && PERF_SAMPLE_DATA_SRC
 	 *	{ u64			transaction; } && PERF_SAMPLE_TRANSACTION
 	 *	{ u64			abi; # enum perf_sample_regs_abi
-	 *	  u64			regs[weight(mask)]; } && PERF_SAMPLE_REGS_INTR
+	 *	  u64			regs[weight(mask)];
+	 *	  struct {
+	 *		u16 nr_vectors;
+	 *		u16 vector_qwords;
+	 *		u16 nr_pred;
+	 *		u16 pred_qwords;
+	 *		u64 data[nr_vectors * vector_qwords + nr_pred * pred_qwords];
+	 *	  } && (abi & PERF_SAMPLE_REGS_ABI_SIMD)
+	 *	} && PERF_SAMPLE_REGS_INTR
 	 *	{ u64			phys_addr;} && PERF_SAMPLE_PHYS_ADDR
 	 *	{ u64			cgroup;} && PERF_SAMPLE_CGROUP
 	 *	{ u64			data_page_size;} && PERF_SAMPLE_DATA_PAGE_SIZE
-- 
2.38.1


  parent reply	other threads:[~2025-08-15 21:35 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-15 21:34 [PATCH V3 00/17] Support vector and more extended registers in perf kan.liang
2025-08-15 21:34 ` [PATCH V3 01/17] perf/x86: Use x86_perf_regs in the x86 nmi handler kan.liang
2025-08-15 21:34 ` [PATCH V3 02/17] perf/x86: Setup the regs data kan.liang
2025-08-15 21:34 ` [PATCH V3 03/17] x86/fpu/xstate: Add xsaves_nmi kan.liang
2025-08-15 21:34 ` [PATCH V3 04/17] perf: Move has_extended_regs() to header file kan.liang
2025-08-15 21:34 ` [PATCH V3 05/17] perf/x86: Support XMM register for non-PEBS and REGS_USER kan.liang
2025-08-19 13:39   ` Peter Zijlstra
2025-08-19 15:55     ` Liang, Kan
2025-08-20  9:46       ` Mi, Dapeng
2025-08-20 18:03         ` Liang, Kan
2025-08-21  1:00           ` Mi, Dapeng
2025-08-15 21:34 ` [PATCH V3 06/17] perf: Support SIMD registers kan.liang
2025-08-20  9:55   ` Mi, Dapeng
2025-08-20 18:08     ` Liang, Kan
2025-08-15 21:34 ` [PATCH V3 07/17] perf/x86: Move XMM to sample_simd_vec_regs kan.liang
2025-08-15 21:34 ` [PATCH V3 08/17] perf/x86: Add YMM into sample_simd_vec_regs kan.liang
2025-08-20  9:59   ` Mi, Dapeng
2025-08-20 18:10     ` Liang, Kan
2025-08-15 21:34 ` [PATCH V3 09/17] perf/x86: Add ZMM " kan.liang
2025-08-15 21:34 ` [PATCH V3 10/17] perf/x86: Add OPMASK into sample_simd_pred_reg kan.liang
2025-08-15 21:34 ` [PATCH V3 11/17] perf/x86: Add eGPRs into sample_regs kan.liang
2025-08-20 10:01   ` Mi, Dapeng
2025-08-15 21:34 ` [PATCH V3 12/17] perf/x86: Add SSP " kan.liang
2025-08-15 21:34 ` [PATCH V3 13/17] perf/x86/intel: Enable PERF_PMU_CAP_SIMD_REGS kan.liang
2025-08-15 21:34 ` [POC PATCH 14/17] perf/x86/regs: Only support legacy regs for the PT and PERF_REGS_MASK for now kan.liang
2025-08-25  9:07   ` Adrian Hunter
2025-08-15 21:34 ` kan.liang [this message]
2025-08-15 21:34 ` [POC PATCH 16/17] perf parse-regs: Support the new SIMD format kan.liang
2025-08-20 10:04   ` Mi, Dapeng
2025-08-20 18:18     ` Liang, Kan
2025-08-21  3:35   ` Mi, Dapeng
2025-08-15 21:34 ` [POC PATCH 17/17] perf regs: Support the PERF_SAMPLE_REGS_ABI_SIMD kan.liang

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