From: Anup Patel <apatel@ventanamicro.com>
To: opensbi@lists.infradead.org
Subject: [PATCH 3/7] lib: sbi_pmu: Firmware counters are always 64 bits wide
Date: Thu, 25 Aug 2022 10:21:40 +0530 [thread overview]
Message-ID: <20220825045144.752619-4-apatel@ventanamicro.com> (raw)
In-Reply-To: <20220825045144.752619-1-apatel@ventanamicro.com>
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>
---
lib/sbi/sbi_pmu.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/lib/sbi/sbi_pmu.c b/lib/sbi/sbi_pmu.c
index 250808e..1c01d34 100644
--- a/lib/sbi/sbi_pmu.c
+++ b/lib/sbi/sbi_pmu.c
@@ -36,7 +36,7 @@ struct sbi_pmu_hw_event {
/** Representation of a firmware event */
struct sbi_pmu_fw_event {
/* Current value of the counter */
- unsigned long curr_count;
+ uint64_t curr_count;
/* A flag indicating pmu event monitoring is started */
bool bStarted;
@@ -719,8 +719,8 @@ int sbi_pmu_ctr_get_info(uint32_t cidx, unsigned long *ctr_info)
} else {
/* it's a firmware counter */
cinfo.type = SBI_PMU_CTR_TYPE_FW;
- /* Firmware counters are XLEN bits wide */
- cinfo.width = BITS_PER_LONG - 1;
+ /* Firmware counters are always 64 bits wide */
+ cinfo.width = 63;
}
*ctr_info = cinfo.value;
--
2.34.1
next prev parent reply other threads:[~2022-08-25 4:51 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-25 4:51 [PATCH 0/7] OpenSBI PMU improvements Anup Patel
2022-08-25 4:51 ` [PATCH 1/7] lib: sbi_pmu: Remove "event_idx" member from struct sbi_pmu_fw_event Anup Patel
2022-08-25 4:51 ` [PATCH 2/7] lib: sbi_pmu: Replace sbi_pmu_ctr_read() with sbi_pmu_ctr_fw_read() Anup Patel
2022-08-25 4:51 ` Anup Patel [this message]
2022-08-25 4:51 ` [PATCH 4/7] lib: sbi_pmu: Simplify FW counters to reduce memory usage Anup Patel
2022-08-25 4:51 ` [PATCH 5/7] lib: sbi_pmu: Add custom PMU device operations Anup Patel
2022-08-25 8:05 ` Andrew Jones
2022-08-25 4:51 ` [PATCH 6/7] lib: sbi: Print platform PMU device at boot-time Anup Patel
[not found] ` <CAOnJCUL2kD_8dbwyBOX1XbaGizUqRAymPUhRWddavtG=aLojMA@mail.gmail.com>
2022-09-01 11:29 ` Anup Patel
2022-08-25 4:51 ` [PATCH 7/7] include: sbi: Reduce includes in sbi_pmu.h Anup Patel
2022-09-01 11:30 ` [PATCH 0/7] OpenSBI PMU improvements Anup Patel
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