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Message-ID: <bf0c6477-7839-4154-a3f6-6508314aec3c@linux.intel.com>
Date: Wed, 20 Aug 2025 18:04:48 +0800
From: "Mi, Dapeng" <dapeng1.mi@...ux.intel.com>
To: kan.liang@...ux.intel.com, peterz@...radead.org, mingo@...hat.com,
 acme@...nel.org, namhyung@...nel.org, tglx@...utronix.de,
 dave.hansen@...ux.intel.com, irogers@...gle.com, adrian.hunter@...el.com,
 jolsa@...nel.org, alexander.shishkin@...ux.intel.com,
 linux-kernel@...r.kernel.org
Cc: ak@...ux.intel.com, zide.chen@...el.com, mark.rutland@....com,
 broonie@...nel.org, ravi.bangoria@....com, eranian@...gle.com
Subject: Re: [POC PATCH 16/17] perf parse-regs: Support the new SIMD format


On 8/16/2025 5:34 AM, kan.liang@...ux.intel.com wrote:
> From: Kan Liang <kan.liang@...ux.intel.com>
>
> Add has_cap_simd_regs() to check if the new SIMD format is available.
> If yes, get the possible mask and qwords.
>
> Add several __weak functions to return qwords and mask for vector and
> pred registers.
>
> Only support collecting the vector and pred as a whole, and only the
> superset. For example, -I XMM,YMM. Only collect all 16 YMMs.
>
> Examples:
>  $perf record -I?
>  available registers: AX BX CX DX SI DI BP SP IP FLAGS CS SS R8 R9 R10
>  R11 R12 R13 R14 R15 SSP XMM0-31 YMM0-31 ZMM0-31 OPMASK0-7

I still have no time to fully review this patch, but the output on SPR
seems incorrect.

./perf record -I?
available registers: AX BX CX DX SI DI BP SP IP FLAGS CS SS R8 R9 R10 R11
R12 R13 R14 R15 XMM0--1 YMM0--1 ZMM0--1


>
>  $perf record --user-regs=?
>  available registers: AX BX CX DX SI DI BP SP IP FLAGS CS SS R8 R9 R10
>  R11 R12 R13 R14 R15 SSP XMM0-31 YMM0-31 ZMM0-31 OPMASK0-7
>
> Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
> ---
>  tools/perf/arch/x86/util/perf_regs.c      | 257 +++++++++++++++++++++-
>  tools/perf/util/evsel.c                   |  25 +++
>  tools/perf/util/parse-regs-options.c      |  60 ++++-
>  tools/perf/util/perf_event_attr_fprintf.c |   6 +
>  tools/perf/util/perf_regs.c               |  29 +++
>  tools/perf/util/perf_regs.h               |  13 +-
>  tools/perf/util/record.h                  |   6 +
>  7 files changed, 381 insertions(+), 15 deletions(-)
>
> diff --git a/tools/perf/arch/x86/util/perf_regs.c b/tools/perf/arch/x86/util/perf_regs.c
> index 12fd93f04802..78027df1af9a 100644
> --- a/tools/perf/arch/x86/util/perf_regs.c
> +++ b/tools/perf/arch/x86/util/perf_regs.c
> @@ -13,6 +13,49 @@
>  #include "../../../util/pmu.h"
>  #include "../../../util/pmus.h"
>  
> +static const struct sample_reg sample_reg_masks_ext[] = {
> +	SMPL_REG(AX, PERF_REG_X86_AX),
> +	SMPL_REG(BX, PERF_REG_X86_BX),
> +	SMPL_REG(CX, PERF_REG_X86_CX),
> +	SMPL_REG(DX, PERF_REG_X86_DX),
> +	SMPL_REG(SI, PERF_REG_X86_SI),
> +	SMPL_REG(DI, PERF_REG_X86_DI),
> +	SMPL_REG(BP, PERF_REG_X86_BP),
> +	SMPL_REG(SP, PERF_REG_X86_SP),
> +	SMPL_REG(IP, PERF_REG_X86_IP),
> +	SMPL_REG(FLAGS, PERF_REG_X86_FLAGS),
> +	SMPL_REG(CS, PERF_REG_X86_CS),
> +	SMPL_REG(SS, PERF_REG_X86_SS),
> +#ifdef HAVE_ARCH_X86_64_SUPPORT
> +	SMPL_REG(R8, PERF_REG_X86_R8),
> +	SMPL_REG(R9, PERF_REG_X86_R9),
> +	SMPL_REG(R10, PERF_REG_X86_R10),
> +	SMPL_REG(R11, PERF_REG_X86_R11),
> +	SMPL_REG(R12, PERF_REG_X86_R12),
> +	SMPL_REG(R13, PERF_REG_X86_R13),
> +	SMPL_REG(R14, PERF_REG_X86_R14),
> +	SMPL_REG(R15, PERF_REG_X86_R15),
> +	SMPL_REG(R16, PERF_REG_X86_R16),
> +	SMPL_REG(R17, PERF_REG_X86_R17),
> +	SMPL_REG(R18, PERF_REG_X86_R18),
> +	SMPL_REG(R19, PERF_REG_X86_R19),
> +	SMPL_REG(R20, PERF_REG_X86_R20),
> +	SMPL_REG(R21, PERF_REG_X86_R21),
> +	SMPL_REG(R22, PERF_REG_X86_R22),
> +	SMPL_REG(R23, PERF_REG_X86_R23),
> +	SMPL_REG(R24, PERF_REG_X86_R24),
> +	SMPL_REG(R25, PERF_REG_X86_R25),
> +	SMPL_REG(R26, PERF_REG_X86_R26),
> +	SMPL_REG(R27, PERF_REG_X86_R27),
> +	SMPL_REG(R28, PERF_REG_X86_R28),
> +	SMPL_REG(R29, PERF_REG_X86_R29),
> +	SMPL_REG(R30, PERF_REG_X86_R30),
> +	SMPL_REG(R31, PERF_REG_X86_R31),
> +	SMPL_REG(SSP, PERF_REG_X86_SSP),
> +#endif
> +	SMPL_REG_END
> +};
> +
>  static const struct sample_reg sample_reg_masks[] = {
>  	SMPL_REG(AX, PERF_REG_X86_AX),
>  	SMPL_REG(BX, PERF_REG_X86_BX),
> @@ -276,27 +319,159 @@ int arch_sdt_arg_parse_op(char *old_op, char **new_op)
>  	return SDT_ARG_VALID;
>  }
>  
> +static bool support_simd_reg(u64 sample_type, u16 qwords, u64 mask, bool pred)
> +{
> +	struct perf_event_attr attr = {
> +		.type				= PERF_TYPE_HARDWARE,
> +		.config				= PERF_COUNT_HW_CPU_CYCLES,
> +		.sample_type			= sample_type,
> +		.disabled 			= 1,
> +		.exclude_kernel			= 1,
> +		.sample_simd_regs_enabled	= 1,
> +	};
> +	int fd;
> +
> +	attr.sample_period = 1;
> +
> +	if (!pred) {
> +		attr.sample_simd_vec_reg_qwords = qwords;
> +		if (sample_type == PERF_SAMPLE_REGS_INTR)
> +			attr.sample_simd_vec_reg_intr = mask;
> +		else
> +			attr.sample_simd_vec_reg_user = mask;
> +	} else {
> +		attr.sample_simd_pred_reg_qwords = PERF_X86_OPMASK_QWORDS;
> +		if (sample_type == PERF_SAMPLE_REGS_INTR)
> +			attr.sample_simd_pred_reg_intr = PERF_X86_SIMD_PRED_MASK;
> +		else
> +			attr.sample_simd_pred_reg_user = PERF_X86_SIMD_PRED_MASK;
> +	}
> +
> +	if (perf_pmus__num_core_pmus() > 1) {
> +		struct perf_pmu *pmu = NULL;
> +		__u64 type = PERF_TYPE_RAW;
> +
> +		/*
> +		 * The same register set is supported among different hybrid PMUs.
> +		 * Only check the first available one.
> +		 */
> +		while ((pmu = perf_pmus__scan_core(pmu)) != NULL) {
> +			type = pmu->type;
> +			break;
> +		}
> +		attr.config |= type << PERF_PMU_TYPE_SHIFT;
> +	}
> +
> +	event_attr_init(&attr);
> +
> +	fd = sys_perf_event_open(&attr, 0, -1, -1, 0);
> +	if (fd != -1) {
> +		close(fd);
> +		return true;
> +	}
> +
> +	return false;
> +}
> +
> +static uint64_t intr_simd_mask, user_simd_mask, pred_mask;
> +static u16	intr_simd_qwords, user_simd_qwords, pred_qwords;
> +
> +static bool get_simd_reg_mask(u64 sample_type)
> +{
> +	u64 mask = GENMASK_ULL(PERF_X86_H16ZMM_BASE - 1, 0);
> +	u16 qwords = PERF_X86_ZMM_QWORDS;
> +
> +	if (support_simd_reg(sample_type, qwords, mask, false)) {
> +		if (support_simd_reg(sample_type, qwords, PERF_X86_SIMD_VEC_MASK, false))
> +			mask = PERF_X86_SIMD_VEC_MASK;
> +	} else {
> +		qwords = PERF_X86_YMM_QWORDS;
> +		if (!support_simd_reg(sample_type, qwords, mask, false)) {
> +			qwords = PERF_X86_XMM_QWORDS;
> +			if (!support_simd_reg(sample_type, qwords, mask, false)) {
> +				qwords = 0;
> +				mask = 0;
> +			}
> +		}
> +	}
> +
> +	if (sample_type == PERF_SAMPLE_REGS_INTR) {
> +		intr_simd_mask = mask;
> +		intr_simd_qwords = qwords;
> +	} else {
> +		user_simd_mask = mask;
> +		user_simd_qwords = qwords;
> +	}
> +
> +	if (support_simd_reg(sample_type, qwords, mask, true)) {
> +		pred_mask = PERF_X86_SIMD_PRED_MASK;
> +		pred_qwords = PERF_X86_OPMASK_QWORDS;
> +	}
> +
> +	return true;
> +}
> +
> +static bool has_cap_simd_regs(void)
> +{
> +	static bool has_cap_simd_regs;
> +	static bool cached;
> +
> +	if (cached)
> +		return has_cap_simd_regs;
> +
> +	cached = true;
> +	has_cap_simd_regs = get_simd_reg_mask(PERF_SAMPLE_REGS_INTR);
> +	has_cap_simd_regs |= get_simd_reg_mask(PERF_SAMPLE_REGS_USER);
> +
> +	return has_cap_simd_regs;
> +}
> +
>  const struct sample_reg *arch__sample_reg_masks(void)
>  {
> +	if (has_cap_simd_regs())
> +		return sample_reg_masks_ext;
>  	return sample_reg_masks;
>  }
>  
> -uint64_t arch__intr_reg_mask(void)
> +static const struct sample_reg sample_simd_reg_masks_empty[] = {
> +	SMPL_REG_END
> +};
> +
> +static const struct sample_reg sample_simd_reg_masks[] = {
> +	SMPL_REG(XMM, 1),
> +	SMPL_REG(YMM, 2),
> +	SMPL_REG(ZMM, 3),
> +	SMPL_REG(OPMASK, 32),
> +	SMPL_REG_END
> +};
> +
> +const struct sample_reg *arch__sample_simd_reg_masks(void)
> +{
> +	if (has_cap_simd_regs())
> +		return sample_simd_reg_masks;
> +	return sample_simd_reg_masks_empty;
> +}
> +
> +static uint64_t __arch__reg_mask(u64 sample_type, u64 mask, bool has_simd_regs)
>  {
>  	struct perf_event_attr attr = {
> -		.type			= PERF_TYPE_HARDWARE,
> -		.config			= PERF_COUNT_HW_CPU_CYCLES,
> -		.sample_type		= PERF_SAMPLE_REGS_INTR,
> -		.sample_regs_intr	= PERF_REG_EXTENDED_MASK,
> -		.precise_ip		= 1,
> -		.disabled 		= 1,
> -		.exclude_kernel		= 1,
> +		.type				= PERF_TYPE_HARDWARE,
> +		.config				= PERF_COUNT_HW_CPU_CYCLES,
> +		.sample_type			= sample_type,
> +		.precise_ip			= 1,
> +		.disabled 			= 1,
> +		.exclude_kernel			= 1,
> +		.sample_simd_regs_enabled	= has_simd_regs,
>  	};
>  	int fd;
>  	/*
>  	 * In an unnamed union, init it here to build on older gcc versions
>  	 */
>  	attr.sample_period = 1;
> +	if (sample_type == PERF_SAMPLE_REGS_INTR)
> +		attr.sample_regs_intr = mask;
> +	else
> +		attr.sample_regs_user = mask;
>  
>  	if (perf_pmus__num_core_pmus() > 1) {
>  		struct perf_pmu *pmu = NULL;
> @@ -318,13 +493,73 @@ uint64_t arch__intr_reg_mask(void)
>  	fd = sys_perf_event_open(&attr, 0, -1, -1, 0);
>  	if (fd != -1) {
>  		close(fd);
> -		return (PERF_REG_EXTENDED_MASK | PERF_REGS_MASK);
> +		return mask;
>  	}
>  
> -	return PERF_REGS_MASK;
> +	return 0;
> +}
> +
> +uint64_t arch__intr_reg_mask(void)
> +{
> +	uint64_t mask = PERF_REGS_MASK;
> +
> +	if (has_cap_simd_regs()) {
> +		mask |= __arch__reg_mask(PERF_SAMPLE_REGS_INTR,
> +					 GENMASK_ULL(PERF_REG_X86_R31, PERF_REG_X86_R16),
> +					 true);
> +		mask |= __arch__reg_mask(PERF_SAMPLE_REGS_INTR,
> +					 BIT_ULL(PERF_REG_X86_SSP),
> +					 true);
> +	} else
> +		mask |= __arch__reg_mask(PERF_SAMPLE_REGS_INTR, PERF_REG_EXTENDED_MASK, false);
> +
> +	return mask;
>  }
>  
>  uint64_t arch__user_reg_mask(void)
>  {
> -	return PERF_REGS_MASK;
> +	uint64_t mask = PERF_REGS_MASK;
> +
> +	if (has_cap_simd_regs()) {
> +		mask |= __arch__reg_mask(PERF_SAMPLE_REGS_USER,
> +					 GENMASK_ULL(PERF_REG_X86_R31, PERF_REG_X86_R16),
> +					 true);
> +		mask |= __arch__reg_mask(PERF_SAMPLE_REGS_USER,
> +					 BIT_ULL(PERF_REG_X86_SSP),
> +					 true);
> +	}
> +
> +	return mask;
> +}
> +
> +uint64_t arch__intr_simd_reg_mask(u16 *qwords)
> +{
> +	if (!has_cap_simd_regs())
> +		return 0;
> +	*qwords = intr_simd_qwords;
> +	return intr_simd_mask;
> +}
> +
> +uint64_t arch__user_simd_reg_mask(u16 *qwords)
> +{
> +	if (!has_cap_simd_regs())
> +		return 0;
> +	*qwords = user_simd_qwords;
> +	return user_simd_mask;
> +}
> +
> +uint64_t arch__intr_pred_reg_mask(u16 *qwords)
> +{
> +	if (!has_cap_simd_regs())
> +		return 0;
> +	*qwords = pred_qwords;
> +	return pred_mask;
> +}
> +
> +uint64_t arch__user_pred_reg_mask(u16 *qwords)
> +{
> +	if (!has_cap_simd_regs())
> +		return 0;
> +	*qwords = pred_qwords;
> +	return pred_mask;
>  }
> diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
> index d55482f094bf..af6e1c843fc5 100644
> --- a/tools/perf/util/evsel.c
> +++ b/tools/perf/util/evsel.c
> @@ -1402,12 +1402,37 @@ void evsel__config(struct evsel *evsel, struct record_opts *opts,
>  		evsel__set_sample_bit(evsel, REGS_INTR);
>  	}
>  
> +	if ((opts->sample_intr_vec_regs || opts->sample_intr_pred_regs) &&
> +	    !evsel->no_aux_samples && !evsel__is_dummy_event(evsel)) {
> +		/* The pred qwords is to implies the set of SIMD registers is used */
> +		if (opts->sample_pred_regs_qwords)
> +			attr->sample_simd_pred_reg_qwords = opts->sample_pred_regs_qwords;
> +		else
> +			attr->sample_simd_pred_reg_qwords = 1;
> +		attr->sample_simd_vec_reg_intr = opts->sample_intr_vec_regs;
> +		attr->sample_simd_vec_reg_qwords = opts->sample_vec_regs_qwords;
> +		attr->sample_simd_pred_reg_intr = opts->sample_intr_pred_regs;
> +		evsel__set_sample_bit(evsel, REGS_INTR);
> +	}
> +
>  	if (opts->sample_user_regs && !evsel->no_aux_samples &&
>  	    !evsel__is_dummy_event(evsel)) {
>  		attr->sample_regs_user |= opts->sample_user_regs;
>  		evsel__set_sample_bit(evsel, REGS_USER);
>  	}
>  
> +	if ((opts->sample_user_vec_regs || opts->sample_user_pred_regs) &&
> +	    !evsel->no_aux_samples && !evsel__is_dummy_event(evsel)) {
> +		if (opts->sample_pred_regs_qwords)
> +			attr->sample_simd_pred_reg_qwords = opts->sample_pred_regs_qwords;
> +		else
> +			attr->sample_simd_pred_reg_qwords = 1;
> +		attr->sample_simd_vec_reg_user = opts->sample_user_vec_regs;
> +		attr->sample_simd_vec_reg_qwords = opts->sample_vec_regs_qwords;
> +		attr->sample_simd_pred_reg_user = opts->sample_user_pred_regs;
> +		evsel__set_sample_bit(evsel, REGS_USER);
> +	}
> +
>  	if (target__has_cpu(&opts->target) || opts->sample_cpu)
>  		evsel__set_sample_bit(evsel, CPU);
>  
> diff --git a/tools/perf/util/parse-regs-options.c b/tools/perf/util/parse-regs-options.c
> index cda1c620968e..27266038352f 100644
> --- a/tools/perf/util/parse-regs-options.c
> +++ b/tools/perf/util/parse-regs-options.c
> @@ -4,20 +4,26 @@
>  #include <stdint.h>
>  #include <string.h>
>  #include <stdio.h>
> +#include <linux/bitops.h>
>  #include "util/debug.h"
>  #include <subcmd/parse-options.h>
>  #include "util/perf_regs.h"
>  #include "util/parse-regs-options.h"
> +#include "record.h"
>  
>  static int
>  __parse_regs(const struct option *opt, const char *str, int unset, bool intr)
>  {
>  	uint64_t *mode = (uint64_t *)opt->value;
>  	const struct sample_reg *r = NULL;
> +	u16 simd_qwords, pred_qwords;
> +	u64 simd_mask, pred_mask;
> +	struct record_opts *opts;
>  	char *s, *os = NULL, *p;
>  	int ret = -1;
>  	uint64_t mask;
>  
> +
>  	if (unset)
>  		return 0;
>  
> @@ -27,10 +33,17 @@ __parse_regs(const struct option *opt, const char *str, int unset, bool intr)
>  	if (*mode)
>  		return -1;
>  
> -	if (intr)
> +	if (intr) {
> +		opts = container_of(opt->value, struct record_opts, sample_intr_regs);
>  		mask = arch__intr_reg_mask();
> -	else
> +		simd_mask = arch__intr_simd_reg_mask(&simd_qwords);
> +		pred_mask = arch__intr_pred_reg_mask(&pred_qwords);
> +	} else {
> +		opts = container_of(opt->value, struct record_opts, sample_user_regs);
>  		mask = arch__user_reg_mask();
> +		simd_mask = arch__user_simd_reg_mask(&simd_qwords);
> +		pred_mask = arch__user_pred_reg_mask(&pred_qwords);
> +	}
>  
>  	/* str may be NULL in case no arg is passed to -I */
>  	if (str) {
> @@ -50,10 +63,51 @@ __parse_regs(const struct option *opt, const char *str, int unset, bool intr)
>  					if (r->mask & mask)
>  						fprintf(stderr, "%s ", r->name);
>  				}
> +				for (r = arch__sample_simd_reg_masks(); r->name; r++) {
> +					if (pred_qwords == r->qwords.pred) {
> +						fprintf(stderr, "%s0-%d ", r->name, fls64(pred_mask) - 1);
> +						continue;
> +					}
> +					if (simd_qwords >= r->mask)
> +						fprintf(stderr, "%s0-%d ", r->name, fls64(simd_mask) - 1);
> +				}
> +
>  				fputc('\n', stderr);
>  				/* just printing available regs */
>  				goto error;
>  			}
> +
> +			if (simd_mask || pred_mask) {
> +				u16 vec_regs_qwords = 0, pred_regs_qwords = 0;
> +
> +				for (r = arch__sample_simd_reg_masks(); r->name; r++) {
> +					if (!strcasecmp(s, r->name)) {
> +						vec_regs_qwords = r->qwords.vec;
> +						pred_regs_qwords = r->qwords.pred;
> +						break;
> +					}
> +				}
> +
> +				/* Just need the highest qwords */
> +				if (vec_regs_qwords > opts->sample_vec_regs_qwords) {
> +					opts->sample_vec_regs_qwords = vec_regs_qwords;
> +					if (intr)
> +						opts->sample_intr_vec_regs = simd_mask;
> +					else
> +						opts->sample_user_vec_regs = simd_mask;
> +				}
> +				if (pred_regs_qwords > opts->sample_pred_regs_qwords) {
> +					opts->sample_pred_regs_qwords = pred_regs_qwords;
> +					if (intr)
> +						opts->sample_intr_pred_regs = pred_mask;
> +					else
> +						opts->sample_user_pred_regs = pred_mask;
> +				}
> +
> +				if (r->name)
> +					goto next;
> +			}
> +
>  			for (r = arch__sample_reg_masks(); r->name; r++) {
>  				if ((r->mask & mask) && !strcasecmp(s, r->name))
>  					break;
> @@ -65,7 +119,7 @@ __parse_regs(const struct option *opt, const char *str, int unset, bool intr)
>  			}
>  
>  			*mode |= r->mask;
> -
> +next:
>  			if (!p)
>  				break;
>  
> diff --git a/tools/perf/util/perf_event_attr_fprintf.c b/tools/perf/util/perf_event_attr_fprintf.c
> index 66b666d9ce64..fb0366d050cf 100644
> --- a/tools/perf/util/perf_event_attr_fprintf.c
> +++ b/tools/perf/util/perf_event_attr_fprintf.c
> @@ -360,6 +360,12 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr,
>  	PRINT_ATTRf(aux_start_paused, p_unsigned);
>  	PRINT_ATTRf(aux_pause, p_unsigned);
>  	PRINT_ATTRf(aux_resume, p_unsigned);
> +	PRINT_ATTRf(sample_simd_pred_reg_qwords, p_unsigned);
> +	PRINT_ATTRf(sample_simd_pred_reg_intr, p_hex);
> +	PRINT_ATTRf(sample_simd_pred_reg_user, p_hex);
> +	PRINT_ATTRf(sample_simd_vec_reg_qwords, p_unsigned);
> +	PRINT_ATTRf(sample_simd_vec_reg_intr, p_hex);
> +	PRINT_ATTRf(sample_simd_vec_reg_user, p_hex);
>  
>  	return ret;
>  }
> diff --git a/tools/perf/util/perf_regs.c b/tools/perf/util/perf_regs.c
> index 44b90bbf2d07..0744c77b4ac8 100644
> --- a/tools/perf/util/perf_regs.c
> +++ b/tools/perf/util/perf_regs.c
> @@ -21,6 +21,30 @@ uint64_t __weak arch__user_reg_mask(void)
>  	return 0;
>  }
>  
> +uint64_t __weak arch__intr_simd_reg_mask(u16 *qwords)
> +{
> +	*qwords = 0;
> +	return 0;
> +}
> +
> +uint64_t __weak arch__user_simd_reg_mask(u16 *qwords)
> +{
> +	*qwords = 0;
> +	return 0;
> +}
> +
> +uint64_t __weak arch__intr_pred_reg_mask(u16 *qwords)
> +{
> +	*qwords = 0;
> +	return 0;
> +}
> +
> +uint64_t __weak arch__user_pred_reg_mask(u16 *qwords)
> +{
> +	*qwords = 0;
> +	return 0;
> +}
> +
>  static const struct sample_reg sample_reg_masks[] = {
>  	SMPL_REG_END
>  };
> @@ -30,6 +54,11 @@ const struct sample_reg * __weak arch__sample_reg_masks(void)
>  	return sample_reg_masks;
>  }
>  
> +const struct sample_reg * __weak arch__sample_simd_reg_masks(void)
> +{
> +	return sample_reg_masks;
> +}
> +
>  const char *perf_reg_name(int id, const char *arch)
>  {
>  	const char *reg_name = NULL;
> diff --git a/tools/perf/util/perf_regs.h b/tools/perf/util/perf_regs.h
> index f2d0736d65cc..b932caa73a8a 100644
> --- a/tools/perf/util/perf_regs.h
> +++ b/tools/perf/util/perf_regs.h
> @@ -9,7 +9,13 @@ struct regs_dump;
>  
>  struct sample_reg {
>  	const char *name;
> -	uint64_t mask;
> +	union {
> +		struct {
> +			uint32_t vec;
> +			uint32_t pred;
> +		} qwords;
> +		uint64_t mask;
> +	};
>  };
>  
>  #define SMPL_REG_MASK(b) (1ULL << (b))
> @@ -27,6 +33,11 @@ int arch_sdt_arg_parse_op(char *old_op, char **new_op);
>  uint64_t arch__intr_reg_mask(void);
>  uint64_t arch__user_reg_mask(void);
>  const struct sample_reg *arch__sample_reg_masks(void);
> +const struct sample_reg *arch__sample_simd_reg_masks(void);
> +uint64_t arch__intr_simd_reg_mask(u16 *qwords);
> +uint64_t arch__user_simd_reg_mask(u16 *qwords);
> +uint64_t arch__intr_pred_reg_mask(u16 *qwords);
> +uint64_t arch__user_pred_reg_mask(u16 *qwords);
>  
>  const char *perf_reg_name(int id, const char *arch);
>  int perf_reg_value(u64 *valp, struct regs_dump *regs, int id);
> diff --git a/tools/perf/util/record.h b/tools/perf/util/record.h
> index ea3a6c4657ee..825ffb4cc53f 100644
> --- a/tools/perf/util/record.h
> +++ b/tools/perf/util/record.h
> @@ -59,7 +59,13 @@ struct record_opts {
>  	unsigned int  user_freq;
>  	u64	      branch_stack;
>  	u64	      sample_intr_regs;
> +	u64	      sample_intr_vec_regs;
>  	u64	      sample_user_regs;
> +	u64	      sample_user_vec_regs;
> +	u16	      sample_pred_regs_qwords;
> +	u16	      sample_vec_regs_qwords;
> +	u16	      sample_intr_pred_regs;
> +	u16	      sample_user_pred_regs;
>  	u64	      default_interval;
>  	u64	      user_interval;
>  	size_t	      auxtrace_snapshot_size;

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