diff mbox series

[v7,04/24] drivers/perf: riscv: Use BIT macro for shifting operations

Message ID 20240416184421.3693802-5-atishp@rivosinc.com (mailing list archive)
State New
Headers show
Series RISC-V SBI v2.0 PMU improvements and Perf sampling in KVM guest | expand

Commit Message

Atish Patra April 16, 2024, 6:44 p.m. UTC 
It is a good practice to use BIT() instead of (1 << x).
Replace the current usages with BIT().

Take this opportunity to replace few (1UL << x) with BIT() as well
for consistency.

Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Atish Patra <atishp@rivosinc.com>
---
 arch/riscv/include/asm/sbi.h | 20 ++++++++++----------
 drivers/perf/riscv_pmu_sbi.c |  2 +-
 2 files changed, 11 insertions(+), 11 deletions(-)
diff mbox series

Patch

diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index ef8311dafb91..4afa2cd01bae 100644
--- a/arch/riscv/include/asm/sbi.h
+++ b/arch/riscv/include/asm/sbi.h
@@ -233,20 +233,20 @@  enum sbi_pmu_ctr_type {
 #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_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)
+#define SBI_PMU_CFG_FLAG_SKIP_MATCH	BIT(0)
+#define SBI_PMU_CFG_FLAG_CLEAR_VALUE	BIT(1)
+#define SBI_PMU_CFG_FLAG_AUTO_START	BIT(2)
+#define SBI_PMU_CFG_FLAG_SET_VUINH	BIT(3)
+#define SBI_PMU_CFG_FLAG_SET_VSINH	BIT(4)
+#define SBI_PMU_CFG_FLAG_SET_UINH	BIT(5)
+#define SBI_PMU_CFG_FLAG_SET_SINH	BIT(6)
+#define SBI_PMU_CFG_FLAG_SET_MINH	BIT(7)
 
 /* Flags defined for counter start function */
-#define SBI_PMU_START_FLAG_SET_INIT_VALUE (1 << 0)
+#define SBI_PMU_START_FLAG_SET_INIT_VALUE BIT(0)
 
 /* Flags defined for counter stop function */
-#define SBI_PMU_STOP_FLAG_RESET (1 << 0)
+#define SBI_PMU_STOP_FLAG_RESET BIT(0)
 
 enum sbi_ext_dbcn_fid {
 	SBI_EXT_DBCN_CONSOLE_WRITE = 0,
diff --git a/drivers/perf/riscv_pmu_sbi.c b/drivers/perf/riscv_pmu_sbi.c
index 1823ffb25d35..f23501898657 100644
--- a/drivers/perf/riscv_pmu_sbi.c
+++ b/drivers/perf/riscv_pmu_sbi.c
@@ -386,7 +386,7 @@  static int pmu_sbi_ctr_get_idx(struct perf_event *event)
 			cmask = 1;
 		} else if (event->attr.config == PERF_COUNT_HW_INSTRUCTIONS) {
 			cflags |= SBI_PMU_CFG_FLAG_SKIP_MATCH;
-			cmask = 1UL << (CSR_INSTRET - CSR_CYCLE);
+			cmask = BIT(CSR_INSTRET - CSR_CYCLE);
 		}
 	}