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perf arm_spe: Decode memory tagging properties 

When SPE records a physical address, it can additionally tag the event
with information from the Memory Tagging architecture extension.

Decode the two additional fields in the SPE event payload.

[leoy: Refined patch to use predefined macros]

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wei Li <liwei391@huawei.com>
Link: https://lore.kernel.org/r/20201119152441.6972-16-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Andre Przywara 2020-11-19 23:24:40 +08:00 committed by Arnaldo Carvalho de Melo
parent 3d829724b1
commit 3601e60550
2 changed files with 7 additions and 1 deletions
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6
tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
View File

@ -385,6 +385,7 @@ static int arm_spe_pkt_desc_addr(const struct arm_spe_pkt *packet,
char *buf, size_t buf_len)
{
int ns, el, idx = packet->index;
int ch, pat;
u64 payload = packet->payload;
int err = 0;
@ -404,9 +405,12 @@ static int arm_spe_pkt_desc_addr(const struct arm_spe_pkt *packet,
break;
case SPE_ADDR_PKT_HDR_INDEX_DATA_PHYS:
ns = !!SPE_ADDR_PKT_GET_NS(payload);
ch = !!SPE_ADDR_PKT_GET_CH(payload);
pat = SPE_ADDR_PKT_GET_PAT(payload);
payload = SPE_ADDR_PKT_ADDR_GET_BYTES_0_6(payload);
arm_spe_pkt_out_string(&err, &buf, &buf_len,
"PA 0x%llx ns=%d", payload, ns);
"PA 0x%llx ns=%d ch=%d pat=%x",
payload, ns, ch, pat);
break;
default:
/* Unknown index */

2
tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
View File

@ -73,6 +73,8 @@ struct arm_spe_pkt {
#define SPE_ADDR_PKT_GET_NS(v) (((v) & BIT_ULL(63)) >> 63)
#define SPE_ADDR_PKT_GET_EL(v) (((v) & GENMASK_ULL(62, 61)) >> 61)
#define SPE_ADDR_PKT_GET_CH(v) (((v) & BIT_ULL(62)) >> 62)
#define SPE_ADDR_PKT_GET_PAT(v) (((v) & GENMASK_ULL(59, 56)) >> 56)
#define SPE_ADDR_PKT_EL0 0
#define SPE_ADDR_PKT_EL1 1