From: Shaokun Zhang zhangshaokun@hisilicon.com
[ Upstream commit 961abd78adcb4c72c343fcd9f9dc5e2ebbe9b448 ]
In L3C uncore PMU drivers, bit16 is used to control all counters enable & disable. Wrong value is given in the driver and its default value is 1'b1, it can work because each PMU counter has its own control bits too. Let's fix the wrong value.
Fixes: 2940bc433370 ("perf: hisi: Add support for HiSilicon SoC L3C PMU driver") Signed-off-by: Shaokun Zhang zhangshaokun@hisilicon.com Cc: Will Deacon will@kernel.org Cc: Mark Rutland mark.rutland@arm.com Link: https://lore.kernel.org/r/1591350221-32275-1-git-send-email-zhangshaokun@his... Signed-off-by: Will Deacon will@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c index 6ce1d69c6319..57a6ba4d5c56 100644 --- a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c @@ -38,7 +38,7 @@ /* L3C has 8-counters */ #define L3C_NR_COUNTERS 0x8
-#define L3C_PERF_CTRL_EN 0x20000 +#define L3C_PERF_CTRL_EN 0x10000 #define L3C_EVTYPE_NONE 0xff
/*