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lib: sbi_pmu: Rename fw_counter_value

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Rename and reuse fw_counter_value array to save both the counter values
for the SBI firmware events and event data for the SBI platform specific
firmware events.

Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
This commit is contained in:
Mayuresh Chitale 2023-03-09 18:43:54 +05:30 • committed by Anup Patel
parent 60c358e677
commit 548e4b4b28
1 changed files with 13 additions and 9 deletions
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22
lib/sbi/sbi_pmu.c
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@ -65,8 +65,12 @@ static uint32_t active_events[SBI_HARTMASK_MAX_BITS][SBI_PMU_HW_CTR_MAX + SBI_PM
#endif
static unsigned long fw_counters_started[SBI_HARTMASK_MAX_BITS];
/* Values of firmwares counters on each HART */
static uint64_t fw_counters_value[SBI_HARTMASK_MAX_BITS][SBI_PMU_FW_CTR_MAX] = {0};
/*
* Counter values for SBI firmware events and event codes for platform
* firmware events. Both are mutually exclusive and hence can optimally share
* the same memory.
*/
static uint64_t fw_counters_data[SBI_HARTMASK_MAX_BITS][SBI_PMU_FW_CTR_MAX] = {0};
/* Maximum number of hardware events available */
static uint32_t num_hw_events;
@ -185,10 +189,10 @@ int sbi_pmu_ctr_fw_read(uint32_t cidx, uint64_t *cval)
if (SBI_PMU_FW_MAX <= event_code &&
pmu_dev && pmu_dev->fw_counter_read_value)
fw_counters_value[hartid][cidx - num_hw_ctrs] =
fw_counters_data[hartid][cidx - num_hw_ctrs] =
pmu_dev->fw_counter_read_value(cidx - num_hw_ctrs);
*cval = fw_counters_value[hartid][cidx - num_hw_ctrs];
*cval = fw_counters_data[hartid][cidx - num_hw_ctrs];
return 0;
}
@ -372,7 +376,7 @@ static int pmu_ctr_start_fw(uint32_t cidx, uint32_t event_code,
}
if (ival_update)
fw_counters_value[hartid][cidx - num_hw_ctrs] = ival;
fw_counters_data[hartid][cidx - num_hw_ctrs] = ival;
fw_counters_started[hartid] |= BIT(cidx - num_hw_ctrs);
return 0;
@ -711,13 +715,13 @@ skip_match:
pmu_ctr_start_hw(ctr_idx, 0, false);
} else if (event_type == SBI_PMU_EVENT_TYPE_FW) {
if (flags & SBI_PMU_CFG_FLAG_CLEAR_VALUE)
fw_counters_value[hartid][ctr_idx - num_hw_ctrs] = 0;
fw_counters_data[hartid][ctr_idx - num_hw_ctrs] = 0;
if (flags & SBI_PMU_CFG_FLAG_AUTO_START) {
if (SBI_PMU_FW_MAX <= event_code &&
pmu_dev && pmu_dev->fw_counter_start) {
ret = pmu_dev->fw_counter_start(
ctr_idx - num_hw_ctrs, event_code,
fw_counters_value[hartid][ctr_idx - num_hw_ctrs],
fw_counters_data[hartid][ctr_idx - num_hw_ctrs],
true);
if (ret)
return ret;
@ -743,7 +747,7 @@ int sbi_pmu_ctr_incr_fw(enum sbi_pmu_fw_event_code_id fw_id)
for (cidx = num_hw_ctrs; cidx < total_ctrs; cidx++) {
if (get_cidx_code(active_events[hartid][cidx]) == fw_id &&
(fw_counters_started[hartid] & BIT(cidx - num_hw_ctrs))) {
fcounter = &fw_counters_value[hartid][cidx - num_hw_ctrs];
fcounter = &fw_counters_data[hartid][cidx - num_hw_ctrs];
break;
}
}
@ -803,7 +807,7 @@ static void pmu_reset_event_map(u32 hartid)
for (j = 3; j < total_ctrs; j++)
active_events[hartid][j] = SBI_PMU_EVENT_IDX_INVALID;
for (j = 0; j < SBI_PMU_FW_CTR_MAX; j++)
fw_counters_value[hartid][j] = 0;
fw_counters_data[hartid][j] = 0;
fw_counters_started[hartid] = 0;
}