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lib: sbi_pmu: Firmware counters are always 64 bits wide

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As-per SBI specification, all firmware counters are always 64 bits
wide so let us update the SBI PMU implementation to reflect this fact.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
This commit is contained in:
Anup Patel
2022-08-24 11:44:40 +05:30
committed by Anup Patel
parent 1664d0efce
commit e238459fab
1 changed files with 3 additions and 3 deletions
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6
lib/sbi/sbi_pmu.c
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@@ -36,7 +36,7 @@ struct sbi_pmu_hw_event {
/** Representation of a firmware event */ /** Representation of a firmware event */
struct sbi_pmu_fw_event { struct sbi_pmu_fw_event {
/* Current value of the counter */ /* Current value of the counter */
unsigned long curr_count; uint64_t curr_count;
/* A flag indicating pmu event monitoring is started */ /* A flag indicating pmu event monitoring is started */
bool bStarted; bool bStarted;
@@ -719,8 +719,8 @@ int sbi_pmu_ctr_get_info(uint32_t cidx, unsigned long *ctr_info)
} else { } else {
/* it's a firmware counter */ /* it's a firmware counter */
cinfo.type = SBI_PMU_CTR_TYPE_FW; cinfo.type = SBI_PMU_CTR_TYPE_FW;
/* Firmware counters are XLEN bits wide */ /* Firmware counters are always 64 bits wide */
cinfo.width = BITS_PER_LONG - 1; cinfo.width = 63;
} }
*ctr_info = cinfo.value; *ctr_info = cinfo.value;