From: James Clark Date: Tue, 14 Apr 2026 12:48:02 +0000 (+0100) Subject: perf arm_spe: Turn event name mappings into an array X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=96b4910c3c6c6e9cad9a90f2e01486faef108ca1;p=thirdparty%2Flinux.git perf arm_spe: Turn event name mappings into an array This is so we can have a single function that prints events and can be used with multiple mappings from different CPUs. Remove any bit that was printed so that later we can print out the remaining unknown impdef bits. No functional changes intended. Reviewed-by: Leo Yan Signed-off-by: James Clark Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Ian Rogers Cc: Ingo Molnar Cc: Jiri Olsa Cc: John Garry Cc: Leo Yan Cc: Mark Rutland Cc: Mike Leach Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Arnaldo Carvalho de Melo --- 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 718022aecec30..67ca356100e53 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 @@ -277,6 +277,48 @@ static int arm_spe_pkt_out_string(int *err, char **buf_p, size_t *blen, return ret; } +struct ev_string { + u8 event; + const char *desc; +}; + +static const struct ev_string common_ev_strings[] = { + { .event = EV_EXCEPTION_GEN, .desc = "EXCEPTION-GEN" }, + { .event = EV_RETIRED, .desc = "RETIRED" }, + { .event = EV_L1D_ACCESS, .desc = "L1D-ACCESS" }, + { .event = EV_L1D_REFILL, .desc = "L1D-REFILL" }, + { .event = EV_TLB_ACCESS, .desc = "TLB-ACCESS" }, + { .event = EV_TLB_WALK, .desc = "TLB-REFILL" }, + { .event = EV_NOT_TAKEN, .desc = "NOT-TAKEN" }, + { .event = EV_MISPRED, .desc = "MISPRED" }, + { .event = EV_LLC_ACCESS, .desc = "LLC-ACCESS" }, + { .event = EV_LLC_MISS, .desc = "LLC-REFILL" }, + { .event = EV_REMOTE_ACCESS, .desc = "REMOTE-ACCESS" }, + { .event = EV_ALIGNMENT, .desc = "ALIGNMENT" }, + { .event = EV_TRANSACTIONAL, .desc = "TXN" }, + { .event = EV_PARTIAL_PREDICATE, .desc = "SVE-PARTIAL-PRED" }, + { .event = EV_EMPTY_PREDICATE, .desc = "SVE-EMPTY-PRED" }, + { .event = EV_L2D_ACCESS, .desc = "L2D-ACCESS" }, + { .event = EV_L2D_MISS, .desc = "L2D-MISS" }, + { .event = EV_CACHE_DATA_MODIFIED, .desc = "HITM" }, + { .event = EV_RECENTLY_FETCHED, .desc = "LFB" }, + { .event = EV_DATA_SNOOPED, .desc = "SNOOPED" }, + { .event = EV_STREAMING_SVE_MODE, .desc = "STREAMING-SVE" }, + { .event = EV_SMCU, .desc = "SMCU" }, + { .event = 0, .desc = NULL }, +}; + +static u64 print_event_list(int *err, char **buf, size_t *buf_len, + const struct ev_string *ev_strings, u64 payload) +{ + for (const struct ev_string *ev = ev_strings; ev->desc != NULL; ev++) { + if (payload & BIT_ULL(ev->event)) + arm_spe_pkt_out_string(err, buf, buf_len, " %s", ev->desc); + payload &= ~BIT_ULL(ev->event); + } + return payload; +} + static int arm_spe_pkt_desc_event(const struct arm_spe_pkt *packet, char *buf, size_t buf_len) { @@ -284,51 +326,7 @@ static int arm_spe_pkt_desc_event(const struct arm_spe_pkt *packet, int err = 0; arm_spe_pkt_out_string(&err, &buf, &buf_len, "EV"); - - if (payload & BIT(EV_EXCEPTION_GEN)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " EXCEPTION-GEN"); - if (payload & BIT(EV_RETIRED)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " RETIRED"); - if (payload & BIT(EV_L1D_ACCESS)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " L1D-ACCESS"); - if (payload & BIT(EV_L1D_REFILL)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " L1D-REFILL"); - if (payload & BIT(EV_TLB_ACCESS)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " TLB-ACCESS"); - if (payload & BIT(EV_TLB_WALK)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " TLB-REFILL"); - if (payload & BIT(EV_NOT_TAKEN)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " NOT-TAKEN"); - if (payload & BIT(EV_MISPRED)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " MISPRED"); - if (payload & BIT(EV_LLC_ACCESS)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " LLC-ACCESS"); - if (payload & BIT(EV_LLC_MISS)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " LLC-REFILL"); - if (payload & BIT(EV_REMOTE_ACCESS)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " REMOTE-ACCESS"); - if (payload & BIT(EV_ALIGNMENT)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " ALIGNMENT"); - if (payload & BIT(EV_TRANSACTIONAL)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " TXN"); - if (payload & BIT(EV_PARTIAL_PREDICATE)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " SVE-PARTIAL-PRED"); - if (payload & BIT(EV_EMPTY_PREDICATE)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " SVE-EMPTY-PRED"); - if (payload & BIT(EV_L2D_ACCESS)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " L2D-ACCESS"); - if (payload & BIT(EV_L2D_MISS)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " L2D-MISS"); - if (payload & BIT(EV_CACHE_DATA_MODIFIED)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " HITM"); - if (payload & BIT(EV_RECENTLY_FETCHED)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " LFB"); - if (payload & BIT(EV_DATA_SNOOPED)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " SNOOPED"); - if (payload & BIT(EV_STREAMING_SVE_MODE)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " STREAMING-SVE"); - if (payload & BIT(EV_SMCU)) - arm_spe_pkt_out_string(&err, &buf, &buf_len, " SMCU"); + print_event_list(&err, &buf, &buf_len, common_ev_strings, payload); return err; }