drivers/perf: hisi: Fix data source control

mainline inclusion
from mainline-v5.13-rc3
commit 814be609
category: bugfix
bugzilla: 175148
CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=814be609baae62aaa6c02fa6f3ad66cff32a6d15

------------------------------------------------------------------------

'Data source' is a new function for HHA PMU and config / clear
interface was wrong by mistake. 'HHA_DATSRC_CTRL' register is
mainly used for data source configuration, if we enable bit0
as driver, it will go on count the event and we didn't check
it carefully. So fix the issue and do as the initial purpose.

Fixes: 932f6a99 ("drivers/perf: hisi: Add new functions for HHA PMU")
Reported-by: Nkernel test robot <lkp@intel.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: NShaokun Zhang <zhangshaokun@hisilicon.com>
Link: https://lore.kernel.org/r/1622709291-37996-1-git-send-email-zhangshaokun@hisilicon.comSigned-off-by: NWill Deacon <will@kernel.org>
Reviewed-by: NShaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/perf/hisilicon/hisi_uncore_hha_pmu.c

@@ -90,7 +90,7 @@ static void hisi_hha_pmu_config_ds(struct perf_event *event)
 
 		val = readl(hha_pmu->base + HHA_DATSRC_CTRL);
 		val |= HHA_DATSRC_SKT_EN;
-		writel(ds_skt, hha_pmu->base + HHA_DATSRC_CTRL);
+		writel(val, hha_pmu->base + HHA_DATSRC_CTRL);
 	}
 }
 
@@ -104,7 +104,7 @@ static void hisi_hha_pmu_clear_ds(struct perf_event *event)
 
 		val = readl(hha_pmu->base + HHA_DATSRC_CTRL);
 		val &= ~HHA_DATSRC_SKT_EN;
-		writel(ds_skt, hha_pmu->base + HHA_DATSRC_CTRL);
+		writel(val, hha_pmu->base + HHA_DATSRC_CTRL);
 	}
 }