From c2b49a3237869213ef154da05570365af23408ad Mon Sep 17 00:00:00 2001 From: Jia Qingtong Date: Fri, 1 Jan 2021 17:32:00 +0800 Subject: [PATCH] MIPS: perf: Add support for OCTEON III perf events. According to Hardware Reference Manual, OCTEON III are mostly same as previous OCTEON models. So just enable them and extend supported event code. 0x3e and 0x3f still reserved. Signed-off-by: Jia Qingtong Signed-off-by: Thomas Bogendoerfer --- arch/mips/kernel/perf_event_mipsxx.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c index 011eb6bb..22e22c2 100644 --- a/arch/mips/kernel/perf_event_mipsxx.c +++ b/arch/mips/kernel/perf_event_mipsxx.c @@ -1919,19 +1919,22 @@ static const struct mips_perf_event *mipsxx_pmu_map_raw_event(u64 config) static const struct mips_perf_event *octeon_pmu_map_raw_event(u64 config) { - unsigned int raw_id = config & 0xff; - unsigned int base_id = raw_id & 0x7f; + unsigned int base_id = config & 0x7f; + unsigned int event_max; raw_event.cntr_mask = CNTR_ALL; raw_event.event_id = base_id; - if (current_cpu_type() == CPU_CAVIUM_OCTEON2) { - if (base_id > 0x42) - return ERR_PTR(-EOPNOTSUPP); - } else { - if (base_id > 0x3a) - return ERR_PTR(-EOPNOTSUPP); + if (current_cpu_type() == CPU_CAVIUM_OCTEON3) + event_max = 0x5f; + else if (current_cpu_type() == CPU_CAVIUM_OCTEON2) + event_max = 0x42; + else + event_max = 0x3a; + + if (base_id > event_max) { + return ERR_PTR(-EOPNOTSUPP); } switch (base_id) { @@ -1941,7 +1944,7 @@ static const struct mips_perf_event *octeon_pmu_map_raw_event(u64 config) case 0x1f: case 0x2f: case 0x34: - case 0x3b ... 0x3f: + case 0x3e ... 0x3f: return ERR_PTR(-EOPNOTSUPP); default: break; @@ -2077,6 +2080,7 @@ init_hw_perf_events(void) case CPU_CAVIUM_OCTEON: case CPU_CAVIUM_OCTEON_PLUS: case CPU_CAVIUM_OCTEON2: + case CPU_CAVIUM_OCTEON3: mipspmu.name = "octeon"; mipspmu.general_event_map = &octeon_event_map; mipspmu.cache_event_map = &octeon_cache_map; -- 2.7.4