mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-12-27 12:21:22 -05:00
Code Issues Packages Projects Releases Wiki Activity

drivers/perf: hisi: Extract the event filter check of L3C PMU

Browse Source 
L3C PMU has 4 filter options which are sharing perf_event_attr::config1.
Driver will check config1 to see whether a certain event has a filter
setting. It'll be incorrect if we make use of other bits in config1
for non-filter options. So check whether each filter options are set
directly in a separate function instead.

Acked-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Signed-off-by: Yushan Wang <wangyushan12@huawei.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Yicong Yang
2025-08-29 18:14:22 +08:00
committed by Will Deacon
parent 0960e535be
commit 2271f16342
1 changed files with 8 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
View File

@@ -204,9 +204,15 @@ static void hisi_l3c_pmu_clear_core_tracetag(struct perf_event *event)
}
}
static bool hisi_l3c_pmu_have_filter(struct perf_event *event)
{
return hisi_get_tt_req(event) || hisi_get_tt_core(event) ||
hisi_get_datasrc_cfg(event) || hisi_get_datasrc_skt(event);
}
static void hisi_l3c_pmu_enable_filter(struct perf_event *event)
{
if (event->attr.config1 != 0x0) {
if (hisi_l3c_pmu_have_filter(event)) {
hisi_l3c_pmu_config_req_tracetag(event);
hisi_l3c_pmu_config_core_tracetag(event);
hisi_l3c_pmu_config_ds(event);
@@ -215,7 +221,7 @@ static void hisi_l3c_pmu_enable_filter(struct perf_event *event)
static void hisi_l3c_pmu_disable_filter(struct perf_event *event)
{
if (event->attr.config1 != 0x0) {
if (hisi_l3c_pmu_have_filter(event)) {
hisi_l3c_pmu_clear_ds(event);
hisi_l3c_pmu_clear_core_tracetag(event);
hisi_l3c_pmu_clear_req_tracetag(event);