From 9f828bc3fb900c5d39ec13ea150341d28fb1f158 Mon Sep 17 00:00:00 2001
From: Mayuresh Chitale <mchitale@ventanamicro.com>
Date: Wed, 8 Feb 2023 13:13:14 +0530
Subject: [PATCH] drivers/perf: RISC-V: Allow programming custom firmware
events
Applications need to be able to program the SBI implementation specific
or custom firmware events in addition to the standard firmware events.
Remove a check in the driver that prohibits the programming of the custom
firmware events.
Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20230208074314.3661406-1-mchitale@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
---
drivers/perf/riscv_pmu_sbi.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/perf/riscv_pmu_sbi.c b/drivers/perf/riscv_pmu_sbi.c
index 7b2288d4b1eca..8bd27d795253c 100644
--- a/drivers/perf/riscv_pmu_sbi.c
+++ b/drivers/perf/riscv_pmu_sbi.c
@@ -385,11 +385,8 @@ static int pmu_sbi_event_map(struct perf_event *event, u64 *econfig)
bSoftware = config >> 63;
raw_config_val = config & RISCV_PMU_RAW_EVENT_MASK;
if (bSoftware) {
- if (raw_config_val < SBI_PMU_FW_MAX)
- ret = (raw_config_val & 0xFFFF) |
- (SBI_PMU_EVENT_TYPE_FW << 16);
- else
- return -EINVAL;
+ ret = (raw_config_val & 0xFFFF) |
+ (SBI_PMU_EVENT_TYPE_FW << 16);
} else {
ret = RISCV_PMU_RAW_EVENT_IDX;
*econfig = raw_config_val;
--
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