diff options
Diffstat (limited to 'drivers/perf')
| -rw-r--r-- | drivers/perf/hisilicon/hisi_uncore_pmu.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pmu.c index 79f76f8dda8e..96183e31b96a 100644 --- a/drivers/perf/hisilicon/hisi_uncore_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_pmu.c @@ -15,6 +15,7 @@ #include <linux/errno.h> #include <linux/interrupt.h> +#include <asm/cputype.h> #include <asm/local64.h> #include "hisi_uncore_pmu.h" @@ -338,8 +339,10 @@ void hisi_uncore_pmu_disable(struct pmu *pmu) /* * Read Super CPU cluster and CPU cluster ID from MPIDR_EL1. - * If multi-threading is supported, CCL_ID is the low 3-bits in MPIDR[Aff2] - * and SCCL_ID is the upper 5-bits of Aff2 field; if not, SCCL_ID + * If multi-threading is supported, On Huawei Kunpeng 920 SoC whose cpu + * core is tsv110, CCL_ID is the low 3-bits in MPIDR[Aff2] and SCCL_ID + * is the upper 5-bits of Aff2 field; while for other cpu types, SCCL_ID + * is in MPIDR[Aff3] and CCL_ID is in MPIDR[Aff2], if not, SCCL_ID * is in MPIDR[Aff2] and CCL_ID is in MPIDR[Aff1]. */ static void hisi_read_sccl_and_ccl_id(int *sccl_id, int *ccl_id) @@ -347,12 +350,19 @@ static void hisi_read_sccl_and_ccl_id(int *sccl_id, int *ccl_id) u64 mpidr = read_cpuid_mpidr(); if (mpidr & MPIDR_MT_BITMASK) { - int aff2 = MPIDR_AFFINITY_LEVEL(mpidr, 2); - - if (sccl_id) - *sccl_id = aff2 >> 3; - if (ccl_id) - *ccl_id = aff2 & 0x7; + if (read_cpuid_part_number() == HISI_CPU_PART_TSV110) { + int aff2 = MPIDR_AFFINITY_LEVEL(mpidr, 2); + + if (sccl_id) + *sccl_id = aff2 >> 3; + if (ccl_id) + *ccl_id = aff2 & 0x7; + } else { + if (sccl_id) + *sccl_id = MPIDR_AFFINITY_LEVEL(mpidr, 3); + if (ccl_id) + *ccl_id = MPIDR_AFFINITY_LEVEL(mpidr, 2); + } } else { if (sccl_id) *sccl_id = MPIDR_AFFINITY_LEVEL(mpidr, 2); |