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    Subject[PATCH v9 15/16] perf arm_spe: Decode memory tagging properties
    Date
    From: Andre Przywara <andre.przywara@arm.com>

    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>
    ---
    tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c | 6 +++++-
    tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h | 2 ++
    2 files changed, 7 insertions(+), 1 deletion(-)

    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 84d661aab54f..57c01ce27915 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
    @@ -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 */
    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 7032fc141ad4..1ad14885c2a1 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
    @@ -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
    --
    2.17.1
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