2020-10-22 17:51:31

by Leo Yan

[permalink] [raw]
Subject: [PATCH v3 14/20] perf arm-spe: Refactor event type handling

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 <[email protected]>
Signed-off-by: Leo Yan <[email protected]>
---
.../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,
--
2.17.1


2020-10-24 02:10:15

by Andre Przywara

[permalink] [raw]
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 <[email protected]>
> Signed-off-by: Leo Yan <[email protected]>

The move is fine, and I checked the bitmasks as well.

Reviewed-by: Andre Przywara <[email protected]>

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,
>