The user can set event and counter in cmdline and the driver need to parse it using 'config' attr value. This will add macro definitions to avoid hard-code in driver. Reviewed-by: Frank Li <Frank.Li@xxxxxxx> Signed-off-by: Xu Yang <xu.yang_2@xxxxxxx> --- Changes in v4: - new patch Changes in v5: - move this patch earlier Changes in v6: - no changes Changes in v7: - use FIELD_* Changes in v8: - add Rb tag Changes in v9: - add Rb tag --- drivers/perf/fsl_imx9_ddr_perf.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/perf/fsl_imx9_ddr_perf.c b/drivers/perf/fsl_imx9_ddr_perf.c index 72c2d3074cde..0017f2c9ef91 100644 --- a/drivers/perf/fsl_imx9_ddr_perf.c +++ b/drivers/perf/fsl_imx9_ddr_perf.c @@ -42,6 +42,9 @@ #define NUM_COUNTERS 11 #define CYCLES_COUNTER 0 +#define CONFIG_EVENT GENMASK(7, 0) +#define CONFIG_COUNTER GENMASK(15, 8) + #define to_ddr_pmu(p) container_of(p, struct ddr_pmu, pmu) #define DDR_PERF_DEV_NAME "imx9_ddr" @@ -339,8 +342,10 @@ static void ddr_perf_counter_local_config(struct ddr_pmu *pmu, int config, int counter, bool enable) { u32 ctrl_a; + int event; ctrl_a = readl_relaxed(pmu->base + PMLCA(counter)); + event = FIELD_GET(CONFIG_EVENT, config); if (enable) { ctrl_a |= PMLCA_FC; @@ -352,7 +357,7 @@ static void ddr_perf_counter_local_config(struct ddr_pmu *pmu, int config, ctrl_a &= ~PMLCA_FC; ctrl_a |= PMLCA_CE; ctrl_a &= ~FIELD_PREP(PMLCA_EVENT, 0x7F); - ctrl_a |= FIELD_PREP(PMLCA_EVENT, (config & 0x000000FF)); + ctrl_a |= FIELD_PREP(PMLCA_EVENT, event); writel(ctrl_a, pmu->base + PMLCA(counter)); } else { /* Freeze counter. */ @@ -366,8 +371,8 @@ static void ddr_perf_monitor_config(struct ddr_pmu *pmu, int cfg, int cfg1, int u32 pmcfg1, pmcfg2; int event, counter; - event = cfg & 0x000000FF; - counter = (cfg & 0x0000FF00) >> 8; + event = FIELD_GET(CONFIG_EVENT, cfg); + counter = FIELD_GET(CONFIG_COUNTER, cfg); pmcfg1 = readl_relaxed(pmu->base + PMCFG1); @@ -469,7 +474,7 @@ static int ddr_perf_event_add(struct perf_event *event, int flags) int cfg2 = event->attr.config2; int counter; - counter = (cfg & 0x0000FF00) >> 8; + counter = FIELD_GET(CONFIG_COUNTER, cfg); pmu->events[counter] = event; pmu->active_events++; -- 2.34.1