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authorShaokun Zhang <zhangshaokun@hisilicon.com>2021-03-08 07:50:29 +0100
committerWill Deacon <will@kernel.org>2021-03-25 14:03:45 +0100
commit4e4cb8ca48bd68c00df67c10ff867016abb7391f (patch)
treeae311802703d9fcea919dde129d4a41546641bd2 /drivers/perf
parentdrivers/perf: Simplify the SMMUv3 PMU event attributes (diff)
downloadlinux-4e4cb8ca48bd68c00df67c10ff867016abb7391f.tar.xz
linux-4e4cb8ca48bd68c00df67c10ff867016abb7391f.zip
drivers/perf: hisi: Remove unnecessary check of counter index
The sanity check for counter index has been done in the function hisi_uncore_pmu_get_event_idx, so remove the redundant interface hisi_uncore_pmu_counter_valid() and sanity check. Cc: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Co-developed-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Link: https://lore.kernel.org/r/1615186237-22263-2-git-send-email-zhangshaokun@hisilicon.com Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/perf')
-rw-r--r--drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c20
-rw-r--r--drivers/perf/hisilicon/hisi_uncore_hha_pmu.c18
-rw-r--r--drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c18
-rw-r--r--drivers/perf/hisilicon/hisi_uncore_pmu.c11
-rw-r--r--drivers/perf/hisilicon/hisi_uncore_pmu.h1
5 files changed, 7 insertions, 61 deletions
diff --git a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c
index ac1a8c120a00..38344b49d7af 100644
--- a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c
@@ -65,29 +65,15 @@ static u32 hisi_ddrc_pmu_get_counter_offset(int cntr_idx)
static u64 hisi_ddrc_pmu_read_counter(struct hisi_pmu *ddrc_pmu,
struct hw_perf_event *hwc)
{
- /* Use event code as counter index */
- u32 idx = GET_DDRC_EVENTID(hwc);
-
- if (!hisi_uncore_pmu_counter_valid(ddrc_pmu, idx)) {
- dev_err(ddrc_pmu->dev, "Unsupported event index:%d!\n", idx);
- return 0;
- }
-
- return readl(ddrc_pmu->base + hisi_ddrc_pmu_get_counter_offset(idx));
+ return readl(ddrc_pmu->base +
+ hisi_ddrc_pmu_get_counter_offset(hwc->idx));
}
static void hisi_ddrc_pmu_write_counter(struct hisi_pmu *ddrc_pmu,
struct hw_perf_event *hwc, u64 val)
{
- u32 idx = GET_DDRC_EVENTID(hwc);
-
- if (!hisi_uncore_pmu_counter_valid(ddrc_pmu, idx)) {
- dev_err(ddrc_pmu->dev, "Unsupported event index:%d!\n", idx);
- return;
- }
-
writel((u32)val,
- ddrc_pmu->base + hisi_ddrc_pmu_get_counter_offset(idx));
+ ddrc_pmu->base + hisi_ddrc_pmu_get_counter_offset(hwc->idx));
}
/*
diff --git a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
index 3402f1a395a8..a4b8c7daefa6 100644
--- a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
@@ -51,29 +51,15 @@ static u32 hisi_hha_pmu_get_counter_offset(int cntr_idx)
static u64 hisi_hha_pmu_read_counter(struct hisi_pmu *hha_pmu,
struct hw_perf_event *hwc)
{
- u32 idx = hwc->idx;
-
- if (!hisi_uncore_pmu_counter_valid(hha_pmu, idx)) {
- dev_err(hha_pmu->dev, "Unsupported event index:%d!\n", idx);
- return 0;
- }
-
/* Read 64 bits and like L3C, top 16 bits are RAZ */
- return readq(hha_pmu->base + hisi_hha_pmu_get_counter_offset(idx));
+ return readq(hha_pmu->base + hisi_hha_pmu_get_counter_offset(hwc->idx));
}
static void hisi_hha_pmu_write_counter(struct hisi_pmu *hha_pmu,
struct hw_perf_event *hwc, u64 val)
{
- u32 idx = hwc->idx;
-
- if (!hisi_uncore_pmu_counter_valid(hha_pmu, idx)) {
- dev_err(hha_pmu->dev, "Unsupported event index:%d!\n", idx);
- return;
- }
-
/* Write 64 bits and like L3C, top 16 bits are WI */
- writeq(val, hha_pmu->base + hisi_hha_pmu_get_counter_offset(idx));
+ writeq(val, hha_pmu->base + hisi_hha_pmu_get_counter_offset(hwc->idx));
}
static void hisi_hha_pmu_write_evtype(struct hisi_pmu *hha_pmu, int idx,
diff --git a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
index 7d792435c2aa..f73be6d76abc 100644
--- a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
@@ -50,29 +50,15 @@ static u32 hisi_l3c_pmu_get_counter_offset(int cntr_idx)
static u64 hisi_l3c_pmu_read_counter(struct hisi_pmu *l3c_pmu,
struct hw_perf_event *hwc)
{
- u32 idx = hwc->idx;
-
- if (!hisi_uncore_pmu_counter_valid(l3c_pmu, idx)) {
- dev_err(l3c_pmu->dev, "Unsupported event index:%d!\n", idx);
- return 0;
- }
-
/* Read 64-bits and the upper 16 bits are RAZ */
- return readq(l3c_pmu->base + hisi_l3c_pmu_get_counter_offset(idx));
+ return readq(l3c_pmu->base + hisi_l3c_pmu_get_counter_offset(hwc->idx));
}
static void hisi_l3c_pmu_write_counter(struct hisi_pmu *l3c_pmu,
struct hw_perf_event *hwc, u64 val)
{
- u32 idx = hwc->idx;
-
- if (!hisi_uncore_pmu_counter_valid(l3c_pmu, idx)) {
- dev_err(l3c_pmu->dev, "Unsupported event index:%d!\n", idx);
- return;
- }
-
/* Write 64-bits and the upper 16 bits are WI */
- writeq(val, l3c_pmu->base + hisi_l3c_pmu_get_counter_offset(idx));
+ writeq(val, l3c_pmu->base + hisi_l3c_pmu_get_counter_offset(hwc->idx));
}
static void hisi_l3c_pmu_write_evtype(struct hisi_pmu *l3c_pmu, int idx,
diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pmu.c
index 5e2b5e12777f..44b7553a3e42 100644
--- a/drivers/perf/hisilicon/hisi_uncore_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_pmu.c
@@ -96,12 +96,6 @@ static bool hisi_validate_event_group(struct perf_event *event)
return counters <= hisi_pmu->num_counters;
}
-int hisi_uncore_pmu_counter_valid(struct hisi_pmu *hisi_pmu, int idx)
-{
- return idx >= 0 && idx < hisi_pmu->num_counters;
-}
-EXPORT_SYMBOL_GPL(hisi_uncore_pmu_counter_valid);
-
int hisi_uncore_pmu_get_event_idx(struct perf_event *event)
{
struct hisi_pmu *hisi_pmu = to_hisi_pmu(event->pmu);
@@ -131,11 +125,6 @@ EXPORT_SYMBOL_GPL(hisi_uncore_pmu_identifier_attr_show);
static void hisi_uncore_pmu_clear_event_idx(struct hisi_pmu *hisi_pmu, int idx)
{
- if (!hisi_uncore_pmu_counter_valid(hisi_pmu, idx)) {
- dev_err(hisi_pmu->dev, "Unsupported event index:%d!\n", idx);
- return;
- }
-
clear_bit(idx, hisi_pmu->pmu_events.used_mask);
}
diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.h b/drivers/perf/hisilicon/hisi_uncore_pmu.h
index 25b7cbe1f818..6a7f5491ef7d 100644
--- a/drivers/perf/hisilicon/hisi_uncore_pmu.h
+++ b/drivers/perf/hisilicon/hisi_uncore_pmu.h
@@ -78,7 +78,6 @@ struct hisi_pmu {
u32 identifier;
};
-int hisi_uncore_pmu_counter_valid(struct hisi_pmu *hisi_pmu, int idx);
int hisi_uncore_pmu_get_event_idx(struct perf_event *event);
void hisi_uncore_pmu_read(struct perf_event *event);
int hisi_uncore_pmu_add(struct perf_event *event, int flags);