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| author | Palmer Dabbelt <palmer@rivosinc.com> | 2022-08-12 00:04:02 +0200 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2022-08-12 16:17:38 +0200 |
| commit | 9801002f76c63327cae6e90097d3d0afb1e1b562 (patch) | |
| tree | 5ed9a44c151cb710b7c7e8343cb2e59e27443f8d /arch | |
| parent | RISC-V: Add Sstc extension support (diff) | |
| parent | RISC-V: Improve SBI definitions (diff) | |
| download | linux-9801002f76c63327cae6e90097d3d0afb1e1b562.tar.xz linux-9801002f76c63327cae6e90097d3d0afb1e1b562.zip | |
perf: riscv_pmu{,_sbi}: Miscallenous improvement & fixes
A series of mostly-independent fixes and cleanups for the RISC-V PMU
drivers.
Link: https://lore.kernel.org/lkml/CAAhSdy23vE8+HxU5Jxy2rBMjy3rBTrJt_4sriuROac_sEESSVw@mail.gmail.com/T/#m9de15aef1b65ae6155fa33ea1239578ef463c2a2
* palmer/riscv-pmu:
RISC-V: Improve SBI definitions
RISC-V: Move counter info definition to sbi header file
RISC-V: Fix SBI PMU calls for RV32
RISC-V: Update user page mapping only once during start
RISC-V: Fix counter restart during overflow for RV32
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/include/asm/sbi.h | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h index 9e3c2cf1edaf..2a0ef738695e 100644 --- a/arch/riscv/include/asm/sbi.h +++ b/arch/riscv/include/asm/sbi.h @@ -122,7 +122,21 @@ enum sbi_ext_pmu_fid { SBI_EXT_PMU_COUNTER_FW_READ, }; -#define RISCV_PMU_RAW_EVENT_MASK GENMASK_ULL(55, 0) +union sbi_pmu_ctr_info { + unsigned long value; + struct { + unsigned long csr:12; + unsigned long width:6; +#if __riscv_xlen == 32 + unsigned long reserved:13; +#else + unsigned long reserved:45; +#endif + unsigned long type:1; + }; +}; + +#define RISCV_PMU_RAW_EVENT_MASK GENMASK_ULL(47, 0) #define RISCV_PMU_RAW_EVENT_IDX 0x20000 /** General pmu event codes specified in SBI PMU extension */ @@ -189,12 +203,26 @@ enum sbi_pmu_ctr_type { SBI_PMU_CTR_TYPE_FW, }; +/* Helper macros to decode event idx */ +#define SBI_PMU_EVENT_IDX_OFFSET 20 +#define SBI_PMU_EVENT_IDX_MASK 0xFFFFF +#define SBI_PMU_EVENT_IDX_CODE_MASK 0xFFFF +#define SBI_PMU_EVENT_IDX_TYPE_MASK 0xF0000 +#define SBI_PMU_EVENT_RAW_IDX 0x20000 +#define SBI_PMU_FIXED_CTR_MASK 0x07 + +#define SBI_PMU_EVENT_CACHE_ID_CODE_MASK 0xFFF8 +#define SBI_PMU_EVENT_CACHE_OP_ID_CODE_MASK 0x06 +#define SBI_PMU_EVENT_CACHE_RESULT_ID_CODE_MASK 0x01 + +#define SBI_PMU_EVENT_IDX_INVALID 0xFFFFFFFF + /* Flags defined for config matching function */ #define SBI_PMU_CFG_FLAG_SKIP_MATCH (1 << 0) #define SBI_PMU_CFG_FLAG_CLEAR_VALUE (1 << 1) #define SBI_PMU_CFG_FLAG_AUTO_START (1 << 2) #define SBI_PMU_CFG_FLAG_SET_VUINH (1 << 3) -#define SBI_PMU_CFG_FLAG_SET_VSNH (1 << 4) +#define SBI_PMU_CFG_FLAG_SET_VSINH (1 << 4) #define SBI_PMU_CFG_FLAG_SET_UINH (1 << 5) #define SBI_PMU_CFG_FLAG_SET_SINH (1 << 6) #define SBI_PMU_CFG_FLAG_SET_MINH (1 << 7) |