From c69f9cb0595ff91759b1ff361d19068e16574229 Mon Sep 17 00:00:00 2001
From: Atish Patra <atishp@rivosinc.com>
Date: Sat, 20 Apr 2024 08:17:20 -0700
Subject: [PATCH] drivers/perf: riscv: Use BIT macro for shifting operations
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>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20240420151741.962500-5-atishp@rivosinc.com
Signed-off-by: Anup Patel <anup@brainfault.org>
---
arch/riscv/include/asm/sbi.h | 20 ++++++++++----------
drivers/perf/riscv_pmu_sbi.c | 2 +-
2 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index ef8311dafb918..4afa2cd01bae4 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 1823ffb25d358..f235018986575 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);
}
}
--
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