From: Atish Patra Date: Tue, 9 Sep 2025 07:03:20 +0000 (-0700) Subject: drivers/perf: riscv: Add SBI v3.0 flag X-Git-Tag: v6.18-rc1~95^2~4^2~7 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=8c8d0f002b769dbef26c93d68e49d1d0ba54d094;p=thirdparty%2Flinux.git drivers/perf: riscv: Add SBI v3.0 flag There are new PMU related features introduced in SBI v3.0. 1. Raw Event v2 which allows mhpmeventX value to be 56 bit wide. 2. Get Event info function to do a bulk query at one shot. Reviewed-by: Anup Patel Signed-off-by: Atish Patra Acked-by: Paul Walmsley Link: https://lore.kernel.org/r/20250909-pmu_event_info-v6-1-d8f80cacb884@rivosinc.com Signed-off-by: Anup Patel --- diff --git a/drivers/perf/riscv_pmu_sbi.c b/drivers/perf/riscv_pmu_sbi.c index 698de8ddf895b..cfd6946fca42e 100644 --- a/drivers/perf/riscv_pmu_sbi.c +++ b/drivers/perf/riscv_pmu_sbi.c @@ -63,6 +63,7 @@ PMU_FORMAT_ATTR(event, "config:0-47"); PMU_FORMAT_ATTR(firmware, "config:62-63"); static bool sbi_v2_available; +static bool sbi_v3_available; static DEFINE_STATIC_KEY_FALSE(sbi_pmu_snapshot_available); #define sbi_pmu_snapshot_available() \ static_branch_unlikely(&sbi_pmu_snapshot_available) @@ -1452,6 +1453,9 @@ static int __init pmu_sbi_devinit(void) if (sbi_spec_version >= sbi_mk_version(2, 0)) sbi_v2_available = true; + if (sbi_spec_version >= sbi_mk_version(3, 0)) + sbi_v3_available = true; + ret = cpuhp_setup_state_multi(CPUHP_AP_PERF_RISCV_STARTING, "perf/riscv/pmu:starting", pmu_sbi_starting_cpu, pmu_sbi_dying_cpu);