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| author | Yicong Yang <yangyicong@hisilicon.com> | 2024-08-29 11:03:31 +0200 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2024-08-30 12:43:10 +0200 |
| commit | 17bf68aeb3642221e3e770399b5a52f370747ac1 (patch) | |
| tree | 411dbf6292484093df16568520344e18ae4e9268 /drivers/perf | |
| parent | drivers/perf: hisi_pcie: Record hardware counts correctly (diff) | |
| download | linux-17bf68aeb3642221e3e770399b5a52f370747ac1.tar.xz linux-17bf68aeb3642221e3e770399b5a52f370747ac1.zip | |
drivers/perf: hisi_pcie: Fix TLP headers bandwidth counting
We make the initial value of event ctrl register as HISI_PCIE_INIT_SET
and modify according to the user options. This will make TLP headers
bandwidth only counting never take effect since HISI_PCIE_INIT_SET
configures to count the TLP payloads bandwidth. Fix this by making
the initial value of event ctrl register as 0.
Fixes: 17d573984d4d ("drivers/perf: hisi: Add TLP filter support")
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240829090332.28756-3-yangyicong@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/perf')
| -rw-r--r-- | drivers/perf/hisilicon/hisi_pcie_pmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/perf/hisilicon/hisi_pcie_pmu.c b/drivers/perf/hisilicon/hisi_pcie_pmu.c index fba569a8640c..f7d6c59d9930 100644 --- a/drivers/perf/hisilicon/hisi_pcie_pmu.c +++ b/drivers/perf/hisilicon/hisi_pcie_pmu.c @@ -208,7 +208,7 @@ static void hisi_pcie_pmu_writeq(struct hisi_pcie_pmu *pcie_pmu, u32 reg_offset, static u64 hisi_pcie_pmu_get_event_ctrl_val(struct perf_event *event) { u64 port, trig_len, thr_len, len_mode; - u64 reg = HISI_PCIE_INIT_SET; + u64 reg = 0; /* Config HISI_PCIE_EVENT_CTRL according to event. */ reg |= FIELD_PREP(HISI_PCIE_EVENT_M, hisi_pcie_get_real_event(event)); |