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Message-ID: <97a7b5b2-2bed-1044-a5c3-14d875e3b888@arm.com>
Date: Sat, 24 Oct 2020 01:32:14 +0100
From: André Przywara <andre.przywara@....com>
To: Leo Yan <leo.yan@...aro.org>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...hat.com>,
Namhyung Kim <namhyung@...nel.org>,
Wei Li <liwei391@...wei.com>,
James Clark <james.clark@....com>, Al Grant <Al.Grant@....com>,
Dave Martin <Dave.Martin@....com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 14/20] perf arm-spe: Refactor event type handling
On 22/10/2020 15:58, Leo Yan wrote:
Hi,
> Move the enums of event types to arm-spe-pkt-decoder.h, thus function
> arm_spe_pkt_desc() can them for bitmasks.
>
> Suggested-by: Andre Przywara <andre.przywara@....com>
> Signed-off-by: Leo Yan <leo.yan@...aro.org>
The move is fine, and I checked the bitmasks as well.
Reviewed-by: Andre Przywara <andre.przywara@....com>
Cheers,
Andre
> ---
> .../util/arm-spe-decoder/arm-spe-decoder.h | 17 --------------
> .../arm-spe-decoder/arm-spe-pkt-decoder.c | 22 +++++++++----------
> .../arm-spe-decoder/arm-spe-pkt-decoder.h | 18 +++++++++++++++
> 3 files changed, 29 insertions(+), 28 deletions(-)
>
> diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
> index a5111a8d4360..24727b8ca7ff 100644
> --- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
> +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
> @@ -13,23 +13,6 @@
>
> #include "arm-spe-pkt-decoder.h"
>
> -enum arm_spe_events {
> - EV_EXCEPTION_GEN = 0,
> - EV_RETIRED = 1,
> - EV_L1D_ACCESS = 2,
> - EV_L1D_REFILL = 3,
> - EV_TLB_ACCESS = 4,
> - EV_TLB_WALK = 5,
> - EV_NOT_TAKEN = 6,
> - EV_MISPRED = 7,
> - EV_LLC_ACCESS = 8,
> - EV_LLC_MISS = 9,
> - EV_REMOTE_ACCESS = 10,
> - EV_ALIGNMENT = 11,
> - EV_PARTIAL_PREDICATE = 17,
> - EV_EMPTY_PREDICATE = 18,
> -};
> -
> enum arm_spe_sample_type {
> ARM_SPE_L1D_ACCESS = 1 << 0,
> ARM_SPE_L1D_MISS = 1 << 1,
> diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
> index 8a6b50f32a52..58a1390b7a43 100644
> --- a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
> +++ b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
> @@ -277,58 +277,58 @@ static int arm_spe_pkt_desc_event(const struct arm_spe_pkt *packet,
> if (ret < 0)
> return ret;
>
> - if (payload & 0x1) {
> + if (payload & BIT(EV_EXCEPTION_GEN)) {
> ret = arm_spe_pkt_snprintf(&buf, &blen, " EXCEPTION-GEN");
> if (ret < 0)
> return ret;
> }
> - if (payload & 0x2) {
> + if (payload & BIT(EV_RETIRED)) {
> ret = arm_spe_pkt_snprintf(&buf, &blen, " RETIRED");
> if (ret < 0)
> return ret;
> }
> - if (payload & 0x4) {
> + if (payload & BIT(EV_L1D_ACCESS)) {
> ret = arm_spe_pkt_snprintf(&buf, &blen, " L1D-ACCESS");
> if (ret < 0)
> return ret;
> }
> - if (payload & 0x8) {
> + if (payload & BIT(EV_L1D_REFILL)) {
> ret = arm_spe_pkt_snprintf(&buf, &blen, " L1D-REFILL");
> if (ret < 0)
> return ret;
> }
> - if (payload & 0x10) {
> + if (payload & BIT(EV_TLB_ACCESS)) {
> ret = arm_spe_pkt_snprintf(&buf, &blen, " TLB-ACCESS");
> if (ret < 0)
> return ret;
> }
> - if (payload & 0x20) {
> + if (payload & BIT(EV_TLB_WALK)) {
> ret = arm_spe_pkt_snprintf(&buf, &blen, " TLB-REFILL");
> if (ret < 0)
> return ret;
> }
> - if (payload & 0x40) {
> + if (payload & BIT(EV_NOT_TAKEN)) {
> ret = arm_spe_pkt_snprintf(&buf, &blen, " NOT-TAKEN");
> if (ret < 0)
> return ret;
> }
> - if (payload & 0x80) {
> + if (payload & BIT(EV_MISPRED)) {
> ret = arm_spe_pkt_snprintf(&buf, &blen, " MISPRED");
> if (ret < 0)
> return ret;
> }
> if (packet->index > 1) {
> - if (payload & 0x100) {
> + if (payload & BIT(EV_LLC_ACCESS)) {
> ret = arm_spe_pkt_snprintf(&buf, &blen, " LLC-ACCESS");
> if (ret < 0)
> return ret;
> }
> - if (payload & 0x200) {
> + if (payload & BIT(EV_LLC_MISS)) {
> ret = arm_spe_pkt_snprintf(&buf, &blen, " LLC-REFILL");
> if (ret < 0)
> return ret;
> }
> - if (payload & 0x400) {
> + if (payload & BIT(EV_REMOTE_ACCESS)) {
> ret = arm_spe_pkt_snprintf(&buf, &blen, " REMOTE-ACCESS");
> if (ret < 0)
> return ret;
> diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
> index 8a291f451ef8..12c344454cf1 100644
> --- a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
> +++ b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
> @@ -92,6 +92,24 @@ struct arm_spe_pkt {
> #define SPE_CNT_PKT_HDR_INDEX_ISSUE_LAT 0x1
> #define SPE_CNT_PKT_HDR_INDEX_TRANS_LAT 0x2
>
> +/* Event packet payload */
> +enum arm_spe_events {
> + EV_EXCEPTION_GEN = 0,
> + EV_RETIRED = 1,
> + EV_L1D_ACCESS = 2,
> + EV_L1D_REFILL = 3,
> + EV_TLB_ACCESS = 4,
> + EV_TLB_WALK = 5,
> + EV_NOT_TAKEN = 6,
> + EV_MISPRED = 7,
> + EV_LLC_ACCESS = 8,
> + EV_LLC_MISS = 9,
> + EV_REMOTE_ACCESS = 10,
> + EV_ALIGNMENT = 11,
> + EV_PARTIAL_PREDICATE = 17,
> + EV_EMPTY_PREDICATE = 18,
> +};
> +
> const char *arm_spe_pkt_name(enum arm_spe_pkt_type);
>
> int arm_spe_get_packet(const unsigned char *buf, size_t len,
>
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