[PATCH v3 0/9] drivers/perf: Use general macro to simplify event attributes

[PATCH v3 0/9] drivers/perf: Use general macro to simplify event attributes

[Qi Liu]

This patchset applies a general EVENT_ATTR_ID to simplify event
attributes in many PMU drivers.

Qi Liu (9):
  perf: Add EVENT_ATTR_ID to simplify event attributes
  drivers/perf: hisi: Simplify EVENT ATTR macro in HiSilicon PMU driver
  drivers/perf: Simplify EVENT ATTR macro in SMMU PMU driver
  drivers/perf: Simplify EVENT ATTR macro in qcom_l2_pmu.c
  drivers/perf: Simplify EVENT ATTR macro in qcom_l3_pmu.c
  drivers/perf: Simplify EVENT ATTR macro in xgene_pmu.c
  drivers/perf: Simplify EVENT ATTR macro in fsl_imx8_ddr_perf.c
  drivers/perf: Simpilfy EVENT ATTR macro in arm_dsu_pmu.c
  arm64: perf: Simplify EVENT ATTR macro in perf_event.c

 arch/arm64/kernel/perf_event.c           |  5 +----
 drivers/perf/arm_dsu_pmu.c               |  2 +-
 drivers/perf/arm_smmuv3_pmu.c            |  7 ++-----
 drivers/perf/fsl_imx8_ddr_perf.c         |  7 ++-----
 drivers/perf/hisilicon/hisi_uncore_pmu.c |  7 +++----
 drivers/perf/hisilicon/hisi_uncore_pmu.h |  2 +-
 drivers/perf/qcom_l2_pmu.c               |  7 ++-----
 drivers/perf/qcom_l3_pmu.c               |  5 +----
 drivers/perf/xgene_pmu.c                 | 11 ++++-------
 include/linux/perf_event.h               |  6 ++++++
 10 files changed, 23 insertions(+), 36 deletions(-)

-- 
2.7.4

[PATCH v3 0/9] drivers/perf: Use general macro to simplify event attributes

[Qi Liu]

This patchset applies a general EVENT_ATTR_ID to simplify event
attributes in many PMU drivers.

Qi Liu (9):
  perf: Add EVENT_ATTR_ID to simplify event attributes
  drivers/perf: hisi: Simplify EVENT ATTR macro in HiSilicon PMU driver
  drivers/perf: Simplify EVENT ATTR macro in SMMU PMU driver
  drivers/perf: Simplify EVENT ATTR macro in qcom_l2_pmu.c
  drivers/perf: Simplify EVENT ATTR macro in qcom_l3_pmu.c
  drivers/perf: Simplify EVENT ATTR macro in xgene_pmu.c
  drivers/perf: Simplify EVENT ATTR macro in fsl_imx8_ddr_perf.c
  drivers/perf: Simpilfy EVENT ATTR macro in arm_dsu_pmu.c
  arm64: perf: Simplify EVENT ATTR macro in perf_event.c

 arch/arm64/kernel/perf_event.c           |  5 +----
 drivers/perf/arm_dsu_pmu.c               |  2 +-
 drivers/perf/arm_smmuv3_pmu.c            |  7 ++-----
 drivers/perf/fsl_imx8_ddr_perf.c         |  7 ++-----
 drivers/perf/hisilicon/hisi_uncore_pmu.c |  7 +++----
 drivers/perf/hisilicon/hisi_uncore_pmu.h |  2 +-
 drivers/perf/qcom_l2_pmu.c               |  7 ++-----
 drivers/perf/qcom_l3_pmu.c               |  5 +----
 drivers/perf/xgene_pmu.c                 | 11 ++++-------
 include/linux/perf_event.h               |  6 ++++++
 10 files changed, 23 insertions(+), 36 deletions(-)

-- 
2.7.4


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[PATCH v3 1/9] perf: Add EVENT_ATTR_ID to simplify event attributes

[Qi Liu]

Similar EVENT_ATTR macros are defined in many PMU drivers,
like HiSilicon PMU driver, Arm PMU driver, Arm SMMU PMU
driver. So add a generic macro to simplify code.

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 include/linux/perf_event.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index f5a6a2f..2d510ad 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1576,6 +1576,12 @@ static struct perf_pmu_events_attr _var = {				    \
 	.event_str	= _str,						    \
 };
 
+#define PMU_EVENT_ATTR_ID(_name, _show, _id)				\
+	(&((struct perf_pmu_events_attr[]) {				\
+		{ .attr = __ATTR(_name, 0444, _show, NULL),		\
+		  .id = _id, }						\
+	})[0].attr.attr)
+
 #define PMU_FORMAT_ATTR(_name, _format)					\
 static ssize_t								\
 _name##_show(struct device *dev,					\
-- 
2.7.4

[PATCH v3 1/9] perf: Add EVENT_ATTR_ID to simplify event attributes

[Qi Liu]

Similar EVENT_ATTR macros are defined in many PMU drivers,
like HiSilicon PMU driver, Arm PMU driver, Arm SMMU PMU
driver. So add a generic macro to simplify code.

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 include/linux/perf_event.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index f5a6a2f..2d510ad 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1576,6 +1576,12 @@ static struct perf_pmu_events_attr _var = {				    \
 	.event_str	= _str,						    \
 };
 
+#define PMU_EVENT_ATTR_ID(_name, _show, _id)				\
+	(&((struct perf_pmu_events_attr[]) {				\
+		{ .attr = __ATTR(_name, 0444, _show, NULL),		\
+		  .id = _id, }						\
+	})[0].attr.attr)
+
 #define PMU_FORMAT_ATTR(_name, _format)					\
 static ssize_t								\
 _name##_show(struct device *dev,					\
-- 
2.7.4


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[PATCH v3 2/9] drivers/perf: hisi: Simplify EVENT ATTR macro in HiSilicon PMU driver

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify HISI_PMU_EVENT_ATTR.

Cc: Shaokun Zhang <zhangshaokun@hisilicon.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 drivers/perf/hisilicon/hisi_uncore_pmu.c | 7 +++----
 drivers/perf/hisilicon/hisi_uncore_pmu.h | 2 +-
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pmu.c
index 13c68b5..52e3bcb 100644
--- a/drivers/perf/hisilicon/hisi_uncore_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_pmu.c
@@ -43,11 +43,10 @@ EXPORT_SYMBOL_GPL(hisi_format_sysfs_show);
 ssize_t hisi_event_sysfs_show(struct device *dev,
 			      struct device_attribute *attr, char *page)
 {
-	struct dev_ext_attribute *eattr;
-
-	eattr = container_of(attr, struct dev_ext_attribute, attr);
+	struct perf_pmu_events_attr *pmu_attr =
+		container_of(attr, struct perf_pmu_events_attr, attr);
 
-	return sysfs_emit(page, "config=0x%lx\n", (unsigned long)eattr->var);
+	return sysfs_emit(page, "config=0x%llx\n", pmu_attr->id);
 }
 EXPORT_SYMBOL_GPL(hisi_event_sysfs_show);
 
diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.h b/drivers/perf/hisilicon/hisi_uncore_pmu.h
index ea9d89b..b2504d4 100644
--- a/drivers/perf/hisilicon/hisi_uncore_pmu.h
+++ b/drivers/perf/hisilicon/hisi_uncore_pmu.h
@@ -35,7 +35,7 @@
 #define HISI_PMU_FORMAT_ATTR(_name, _config)		\
 	HISI_PMU_ATTR(_name, hisi_format_sysfs_show, (void *)_config)
 #define HISI_PMU_EVENT_ATTR(_name, _config)		\
-	HISI_PMU_ATTR(_name, hisi_event_sysfs_show, (unsigned long)_config)
+	PMU_EVENT_ATTR_ID(_name, hisi_event_sysfs_show, _config)
 
 #define HISI_PMU_EVENT_ATTR_EXTRACTOR(name, config, hi, lo)        \
 	static inline u32 hisi_get_##name(struct perf_event *event)            \
-- 
2.7.4

[PATCH v3 2/9] drivers/perf: hisi: Simplify EVENT ATTR macro in HiSilicon PMU driver

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify HISI_PMU_EVENT_ATTR.

Cc: Shaokun Zhang <zhangshaokun@hisilicon.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 drivers/perf/hisilicon/hisi_uncore_pmu.c | 7 +++----
 drivers/perf/hisilicon/hisi_uncore_pmu.h | 2 +-
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pmu.c
index 13c68b5..52e3bcb 100644
--- a/drivers/perf/hisilicon/hisi_uncore_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_pmu.c
@@ -43,11 +43,10 @@ EXPORT_SYMBOL_GPL(hisi_format_sysfs_show);
 ssize_t hisi_event_sysfs_show(struct device *dev,
 			      struct device_attribute *attr, char *page)
 {
-	struct dev_ext_attribute *eattr;
-
-	eattr = container_of(attr, struct dev_ext_attribute, attr);
+	struct perf_pmu_events_attr *pmu_attr =
+		container_of(attr, struct perf_pmu_events_attr, attr);
 
-	return sysfs_emit(page, "config=0x%lx\n", (unsigned long)eattr->var);
+	return sysfs_emit(page, "config=0x%llx\n", pmu_attr->id);
 }
 EXPORT_SYMBOL_GPL(hisi_event_sysfs_show);
 
diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.h b/drivers/perf/hisilicon/hisi_uncore_pmu.h
index ea9d89b..b2504d4 100644
--- a/drivers/perf/hisilicon/hisi_uncore_pmu.h
+++ b/drivers/perf/hisilicon/hisi_uncore_pmu.h
@@ -35,7 +35,7 @@
 #define HISI_PMU_FORMAT_ATTR(_name, _config)		\
 	HISI_PMU_ATTR(_name, hisi_format_sysfs_show, (void *)_config)
 #define HISI_PMU_EVENT_ATTR(_name, _config)		\
-	HISI_PMU_ATTR(_name, hisi_event_sysfs_show, (unsigned long)_config)
+	PMU_EVENT_ATTR_ID(_name, hisi_event_sysfs_show, _config)
 
 #define HISI_PMU_EVENT_ATTR_EXTRACTOR(name, config, hi, lo)        \
 	static inline u32 hisi_get_##name(struct perf_event *event)            \
-- 
2.7.4


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[PATCH v3 3/9] drivers/perf: Simplify EVENT ATTR macro in SMMU PMU driver

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify SMMU_EVENT_ATTR.

Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 drivers/perf/arm_smmuv3_pmu.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/perf/arm_smmuv3_pmu.c b/drivers/perf/arm_smmuv3_pmu.c
index ff6fab4..da2ce30 100644
--- a/drivers/perf/arm_smmuv3_pmu.c
+++ b/drivers/perf/arm_smmuv3_pmu.c
@@ -509,11 +509,8 @@ static ssize_t smmu_pmu_event_show(struct device *dev,
 	return sysfs_emit(page, "event=0x%02llx\n", pmu_attr->id);
 }
 
-#define SMMU_EVENT_ATTR(name, config)					\
-	(&((struct perf_pmu_events_attr) {				\
-		.attr = __ATTR(name, 0444, smmu_pmu_event_show, NULL),	\
-		.id = config,						\
-	}).attr.attr)
+#define SMMU_EVENT_ATTR(name, config)			\
+	PMU_EVENT_ATTR_ID(name, smmu_pmu_event_show, config)
 
 static struct attribute *smmu_pmu_events[] = {
 	SMMU_EVENT_ATTR(cycles, 0),
-- 
2.7.4

[PATCH v3 3/9] drivers/perf: Simplify EVENT ATTR macro in SMMU PMU driver

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify SMMU_EVENT_ATTR.

Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 drivers/perf/arm_smmuv3_pmu.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/perf/arm_smmuv3_pmu.c b/drivers/perf/arm_smmuv3_pmu.c
index ff6fab4..da2ce30 100644
--- a/drivers/perf/arm_smmuv3_pmu.c
+++ b/drivers/perf/arm_smmuv3_pmu.c
@@ -509,11 +509,8 @@ static ssize_t smmu_pmu_event_show(struct device *dev,
 	return sysfs_emit(page, "event=0x%02llx\n", pmu_attr->id);
 }
 
-#define SMMU_EVENT_ATTR(name, config)					\
-	(&((struct perf_pmu_events_attr) {				\
-		.attr = __ATTR(name, 0444, smmu_pmu_event_show, NULL),	\
-		.id = config,						\
-	}).attr.attr)
+#define SMMU_EVENT_ATTR(name, config)			\
+	PMU_EVENT_ATTR_ID(name, smmu_pmu_event_show, config)
 
 static struct attribute *smmu_pmu_events[] = {
 	SMMU_EVENT_ATTR(cycles, 0),
-- 
2.7.4


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[PATCH v3 4/9] drivers/perf: Simplify EVENT ATTR macro in qcom_l2_pmu.c

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify L2CACHE_EVENT_ATTR.

Cc: Andy Gross <agross@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 drivers/perf/qcom_l2_pmu.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/perf/qcom_l2_pmu.c b/drivers/perf/qcom_l2_pmu.c
index fc54a80..2cf89de 100644
--- a/drivers/perf/qcom_l2_pmu.c
+++ b/drivers/perf/qcom_l2_pmu.c
@@ -679,11 +679,8 @@ static ssize_t l2cache_pmu_event_show(struct device *dev,
 	return sysfs_emit(page, "event=0x%02llx\n", pmu_attr->id);
 }
 
-#define L2CACHE_EVENT_ATTR(_name, _id)					     \
-	(&((struct perf_pmu_events_attr[]) {				     \
-		{ .attr = __ATTR(_name, 0444, l2cache_pmu_event_show, NULL), \
-		  .id = _id, }						     \
-	})[0].attr.attr)
+#define L2CACHE_EVENT_ATTR(_name, _id)			    \
+	PMU_EVENT_ATTR_ID(_name, l2cache_pmu_event_show, _id)
 
 static struct attribute *l2_cache_pmu_events[] = {
 	L2CACHE_EVENT_ATTR(cycles, L2_EVENT_CYCLES),
-- 
2.7.4

[PATCH v3 4/9] drivers/perf: Simplify EVENT ATTR macro in qcom_l2_pmu.c

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify L2CACHE_EVENT_ATTR.

Cc: Andy Gross <agross@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 drivers/perf/qcom_l2_pmu.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/perf/qcom_l2_pmu.c b/drivers/perf/qcom_l2_pmu.c
index fc54a80..2cf89de 100644
--- a/drivers/perf/qcom_l2_pmu.c
+++ b/drivers/perf/qcom_l2_pmu.c
@@ -679,11 +679,8 @@ static ssize_t l2cache_pmu_event_show(struct device *dev,
 	return sysfs_emit(page, "event=0x%02llx\n", pmu_attr->id);
 }
 
-#define L2CACHE_EVENT_ATTR(_name, _id)					     \
-	(&((struct perf_pmu_events_attr[]) {				     \
-		{ .attr = __ATTR(_name, 0444, l2cache_pmu_event_show, NULL), \
-		  .id = _id, }						     \
-	})[0].attr.attr)
+#define L2CACHE_EVENT_ATTR(_name, _id)			    \
+	PMU_EVENT_ATTR_ID(_name, l2cache_pmu_event_show, _id)
 
 static struct attribute *l2_cache_pmu_events[] = {
 	L2CACHE_EVENT_ATTR(cycles, L2_EVENT_CYCLES),
-- 
2.7.4


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[PATCH v3 5/9] drivers/perf: Simplify EVENT ATTR macro in qcom_l3_pmu.c

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify L3CACHE_EVENT_ATTR.

Cc: Andy Gross <agross@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 drivers/perf/qcom_l3_pmu.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/perf/qcom_l3_pmu.c b/drivers/perf/qcom_l3_pmu.c
index bba0780..2b18e44 100644
--- a/drivers/perf/qcom_l3_pmu.c
+++ b/drivers/perf/qcom_l3_pmu.c
@@ -647,10 +647,7 @@ static ssize_t l3cache_pmu_event_show(struct device *dev,
 }
 
 #define L3CACHE_EVENT_ATTR(_name, _id)					     \
-	(&((struct perf_pmu_events_attr[]) {				     \
-		{ .attr = __ATTR(_name, 0444, l3cache_pmu_event_show, NULL), \
-		  .id = _id, }						     \
-	})[0].attr.attr)
+	PMU_EVENT_ATTR_ID(_name, l3cache_pmu_event_show, _id)
 
 static struct attribute *qcom_l3_cache_pmu_events[] = {
 	L3CACHE_EVENT_ATTR(cycles, L3_EVENT_CYCLES),
-- 
2.7.4

[PATCH v3 5/9] drivers/perf: Simplify EVENT ATTR macro in qcom_l3_pmu.c

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify L3CACHE_EVENT_ATTR.

Cc: Andy Gross <agross@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 drivers/perf/qcom_l3_pmu.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/perf/qcom_l3_pmu.c b/drivers/perf/qcom_l3_pmu.c
index bba0780..2b18e44 100644
--- a/drivers/perf/qcom_l3_pmu.c
+++ b/drivers/perf/qcom_l3_pmu.c
@@ -647,10 +647,7 @@ static ssize_t l3cache_pmu_event_show(struct device *dev,
 }
 
 #define L3CACHE_EVENT_ATTR(_name, _id)					     \
-	(&((struct perf_pmu_events_attr[]) {				     \
-		{ .attr = __ATTR(_name, 0444, l3cache_pmu_event_show, NULL), \
-		  .id = _id, }						     \
-	})[0].attr.attr)
+	PMU_EVENT_ATTR_ID(_name, l3cache_pmu_event_show, _id)
 
 static struct attribute *qcom_l3_cache_pmu_events[] = {
 	L3CACHE_EVENT_ATTR(cycles, L3_EVENT_CYCLES),
-- 
2.7.4


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[PATCH v3 6/9] drivers/perf: Simplify EVENT ATTR macro in xgene_pmu.c

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify XGENE_PMU_EVENT_ATTR.

Cc: Khuong Dinh <khuong@os.amperecomputing.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 drivers/perf/xgene_pmu.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c
index ffe3bde..9b47bcd 100644
--- a/drivers/perf/xgene_pmu.c
+++ b/drivers/perf/xgene_pmu.c
@@ -278,17 +278,14 @@ static const struct attribute_group mc_pmu_v3_format_attr_group = {
 static ssize_t xgene_pmu_event_show(struct device *dev,
 				    struct device_attribute *attr, char *buf)
 {
-	struct dev_ext_attribute *eattr;
+	struct perf_pmu_events_attr *pmu_attr =
+		container_of(attr, struct perf_pmu_events_attr, attr);
 
-	eattr = container_of(attr, struct dev_ext_attribute, attr);
-	return sysfs_emit(buf, "config=0x%lx\n", (unsigned long) eattr->var);
+	return sysfs_emit(buf, "config=0x%llx\n", pmu_attr->id);
 }
 
 #define XGENE_PMU_EVENT_ATTR(_name, _config)		\
-	(&((struct dev_ext_attribute[]) {		\
-		{ .attr = __ATTR(_name, S_IRUGO, xgene_pmu_event_show, NULL), \
-		  .var = (void *) _config, }		\
-	 })[0].attr.attr)
+	PMU_EVENT_ATTR_ID(_name, xgene_pmu_event_show, _config)
 
 static struct attribute *l3c_pmu_events_attrs[] = {
 	XGENE_PMU_EVENT_ATTR(cycle-count,			0x00),
-- 
2.7.4

[PATCH v3 6/9] drivers/perf: Simplify EVENT ATTR macro in xgene_pmu.c

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify XGENE_PMU_EVENT_ATTR.

Cc: Khuong Dinh <khuong@os.amperecomputing.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 drivers/perf/xgene_pmu.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c
index ffe3bde..9b47bcd 100644
--- a/drivers/perf/xgene_pmu.c
+++ b/drivers/perf/xgene_pmu.c
@@ -278,17 +278,14 @@ static const struct attribute_group mc_pmu_v3_format_attr_group = {
 static ssize_t xgene_pmu_event_show(struct device *dev,
 				    struct device_attribute *attr, char *buf)
 {
-	struct dev_ext_attribute *eattr;
+	struct perf_pmu_events_attr *pmu_attr =
+		container_of(attr, struct perf_pmu_events_attr, attr);
 
-	eattr = container_of(attr, struct dev_ext_attribute, attr);
-	return sysfs_emit(buf, "config=0x%lx\n", (unsigned long) eattr->var);
+	return sysfs_emit(buf, "config=0x%llx\n", pmu_attr->id);
 }
 
 #define XGENE_PMU_EVENT_ATTR(_name, _config)		\
-	(&((struct dev_ext_attribute[]) {		\
-		{ .attr = __ATTR(_name, S_IRUGO, xgene_pmu_event_show, NULL), \
-		  .var = (void *) _config, }		\
-	 })[0].attr.attr)
+	PMU_EVENT_ATTR_ID(_name, xgene_pmu_event_show, _config)
 
 static struct attribute *l3c_pmu_events_attrs[] = {
 	XGENE_PMU_EVENT_ATTR(cycle-count,			0x00),
-- 
2.7.4


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[PATCH v3 7/9] drivers/perf: Simplify EVENT ATTR macro in fsl_imx8_ddr_perf.c

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify IMX8_DDR_PMU_EVENT_ATTR.

Cc: Frank Li <Frank.li@nxp.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Reviewed by Frank Li <Frank .li@nxp.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 drivers/perf/fsl_imx8_ddr_perf.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/perf/fsl_imx8_ddr_perf.c b/drivers/perf/fsl_imx8_ddr_perf.c
index 2bbb931..0406215 100644
--- a/drivers/perf/fsl_imx8_ddr_perf.c
+++ b/drivers/perf/fsl_imx8_ddr_perf.c
@@ -222,11 +222,8 @@ ddr_pmu_event_show(struct device *dev, struct device_attribute *attr,
 	return sysfs_emit(page, "event=0x%02llx\n", pmu_attr->id);
 }
 
-#define IMX8_DDR_PMU_EVENT_ATTR(_name, _id)				\
-	(&((struct perf_pmu_events_attr[]) {				\
-		{ .attr = __ATTR(_name, 0444, ddr_pmu_event_show, NULL),\
-		  .id = _id, }						\
-	})[0].attr.attr)
+#define IMX8_DDR_PMU_EVENT_ATTR(_name, _id)		\
+	PMU_EVENT_ATTR_ID(_name, ddr_pmu_event_show, _id)
 
 static struct attribute *ddr_perf_events_attrs[] = {
 	IMX8_DDR_PMU_EVENT_ATTR(cycles, EVENT_CYCLES_ID),
-- 
2.7.4

[PATCH v3 7/9] drivers/perf: Simplify EVENT ATTR macro in fsl_imx8_ddr_perf.c

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify IMX8_DDR_PMU_EVENT_ATTR.

Cc: Frank Li <Frank.li@nxp.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Reviewed by Frank Li <Frank .li@nxp.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 drivers/perf/fsl_imx8_ddr_perf.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/perf/fsl_imx8_ddr_perf.c b/drivers/perf/fsl_imx8_ddr_perf.c
index 2bbb931..0406215 100644
--- a/drivers/perf/fsl_imx8_ddr_perf.c
+++ b/drivers/perf/fsl_imx8_ddr_perf.c
@@ -222,11 +222,8 @@ ddr_pmu_event_show(struct device *dev, struct device_attribute *attr,
 	return sysfs_emit(page, "event=0x%02llx\n", pmu_attr->id);
 }
 
-#define IMX8_DDR_PMU_EVENT_ATTR(_name, _id)				\
-	(&((struct perf_pmu_events_attr[]) {				\
-		{ .attr = __ATTR(_name, 0444, ddr_pmu_event_show, NULL),\
-		  .id = _id, }						\
-	})[0].attr.attr)
+#define IMX8_DDR_PMU_EVENT_ATTR(_name, _id)		\
+	PMU_EVENT_ATTR_ID(_name, ddr_pmu_event_show, _id)
 
 static struct attribute *ddr_perf_events_attrs[] = {
 	IMX8_DDR_PMU_EVENT_ATTR(cycles, EVENT_CYCLES_ID),
-- 
2.7.4


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[PATCH v3 8/9] drivers/perf: Simpilfy EVENT ATTR macro in arm_dsu_pmu.c

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify DSU_EVENT_ATTR.

Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 drivers/perf/arm_dsu_pmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/perf/arm_dsu_pmu.c b/drivers/perf/arm_dsu_pmu.c
index 196faea..bed8376 100644
--- a/drivers/perf/arm_dsu_pmu.c
+++ b/drivers/perf/arm_dsu_pmu.c
@@ -82,7 +82,7 @@
 	})[0].attr.attr)
 
 #define DSU_EVENT_ATTR(_name, _config)		\
-	DSU_EXT_ATTR(_name, dsu_pmu_sysfs_event_show, (unsigned long)_config)
+	PMU_EVENT_ATTR_ID(_name, dsu_pmu_sysfs_event_show, _config)
 
 #define DSU_FORMAT_ATTR(_name, _config)		\
 	DSU_EXT_ATTR(_name, dsu_pmu_sysfs_format_show, (char *)_config)
-- 
2.7.4

[PATCH v3 8/9] drivers/perf: Simpilfy EVENT ATTR macro in arm_dsu_pmu.c

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify DSU_EVENT_ATTR.

Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 drivers/perf/arm_dsu_pmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/perf/arm_dsu_pmu.c b/drivers/perf/arm_dsu_pmu.c
index 196faea..bed8376 100644
--- a/drivers/perf/arm_dsu_pmu.c
+++ b/drivers/perf/arm_dsu_pmu.c
@@ -82,7 +82,7 @@
 	})[0].attr.attr)
 
 #define DSU_EVENT_ATTR(_name, _config)		\
-	DSU_EXT_ATTR(_name, dsu_pmu_sysfs_event_show, (unsigned long)_config)
+	PMU_EVENT_ATTR_ID(_name, dsu_pmu_sysfs_event_show, _config)
 
 #define DSU_FORMAT_ATTR(_name, _config)		\
 	DSU_EXT_ATTR(_name, dsu_pmu_sysfs_format_show, (char *)_config)
-- 
2.7.4


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Re: [PATCH v3 8/9] drivers/perf: Simpilfy EVENT ATTR macro in arm_dsu_pmu.c

[Will Deacon]

On Tue, Jun 08, 2021 at 11:33:20AM +0800, Qi Liu wrote:
> Use common macro PMU_EVENT_ATTR_ID to simplify DSU_EVENT_ATTR.
> 
> Cc: Will Deacon <will@kernel.org>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Signed-off-by: Qi Liu <liuqi115@huawei.com>
> ---
>  drivers/perf/arm_dsu_pmu.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/perf/arm_dsu_pmu.c b/drivers/perf/arm_dsu_pmu.c
> index 196faea..bed8376 100644
> --- a/drivers/perf/arm_dsu_pmu.c
> +++ b/drivers/perf/arm_dsu_pmu.c
> @@ -82,7 +82,7 @@
>  	})[0].attr.attr)
>  
>  #define DSU_EVENT_ATTR(_name, _config)		\
> -	DSU_EXT_ATTR(_name, dsu_pmu_sysfs_event_show, (unsigned long)_config)
> +	PMU_EVENT_ATTR_ID(_name, dsu_pmu_sysfs_event_show, _config)
>  
>  #define DSU_FORMAT_ATTR(_name, _config)		\
>  	DSU_EXT_ATTR(_name, dsu_pmu_sysfs_format_show, (char *)_config)

I'm not convinced this is any simpler. We still have two users of the
DSU_EXT_ATTR macro and the net effect is no change in line count.

Will

Re: [PATCH v3 8/9] drivers/perf: Simpilfy EVENT ATTR macro in arm_dsu_pmu.c

[Will Deacon]

On Tue, Jun 08, 2021 at 11:33:20AM +0800, Qi Liu wrote:
> Use common macro PMU_EVENT_ATTR_ID to simplify DSU_EVENT_ATTR.
> 
> Cc: Will Deacon <will@kernel.org>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Signed-off-by: Qi Liu <liuqi115@huawei.com>
> ---
>  drivers/perf/arm_dsu_pmu.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/perf/arm_dsu_pmu.c b/drivers/perf/arm_dsu_pmu.c
> index 196faea..bed8376 100644
> --- a/drivers/perf/arm_dsu_pmu.c
> +++ b/drivers/perf/arm_dsu_pmu.c
> @@ -82,7 +82,7 @@
>  	})[0].attr.attr)
>  
>  #define DSU_EVENT_ATTR(_name, _config)		\
> -	DSU_EXT_ATTR(_name, dsu_pmu_sysfs_event_show, (unsigned long)_config)
> +	PMU_EVENT_ATTR_ID(_name, dsu_pmu_sysfs_event_show, _config)
>  
>  #define DSU_FORMAT_ATTR(_name, _config)		\
>  	DSU_EXT_ATTR(_name, dsu_pmu_sysfs_format_show, (char *)_config)

I'm not convinced this is any simpler. We still have two users of the
DSU_EXT_ATTR macro and the net effect is no change in line count.

Will

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Re: [PATCH v3 8/9] drivers/perf: Simpilfy EVENT ATTR macro in arm_dsu_pmu.c

[liuqi (BA)]

Hi Will,
On 2021/6/8 16:52, Will Deacon wrote:
> On Tue, Jun 08, 2021 at 11:33:20AM +0800, Qi Liu wrote:
>> Use common macro PMU_EVENT_ATTR_ID to simplify DSU_EVENT_ATTR.
>>
>> Cc: Will Deacon <will@kernel.org>
>> Cc: Mark Rutland <mark.rutland@arm.com>
>> Signed-off-by: Qi Liu <liuqi115@huawei.com>
>> ---
>>   drivers/perf/arm_dsu_pmu.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/perf/arm_dsu_pmu.c b/drivers/perf/arm_dsu_pmu.c
>> index 196faea..bed8376 100644
>> --- a/drivers/perf/arm_dsu_pmu.c
>> +++ b/drivers/perf/arm_dsu_pmu.c
>> @@ -82,7 +82,7 @@
>>   	})[0].attr.attr)
>>   
>>   #define DSU_EVENT_ATTR(_name, _config)		\
>> -	DSU_EXT_ATTR(_name, dsu_pmu_sysfs_event_show, (unsigned long)_config)
>> +	PMU_EVENT_ATTR_ID(_name, dsu_pmu_sysfs_event_show, _config)
>>   
>>   #define DSU_FORMAT_ATTR(_name, _config)		\
>>   	DSU_EXT_ATTR(_name, dsu_pmu_sysfs_format_show, (char *)_config)
> 
> I'm not convinced this is any simpler. We still have two users of the
> DSU_EXT_ATTR macro and the net effect is no change in line count.
> 
Got it, I'll drop this patch and sent a new patchset.

Thanks,
Qi
> Will
> .
> 

Re: [PATCH v3 8/9] drivers/perf: Simpilfy EVENT ATTR macro in arm_dsu_pmu.c

[liuqi (BA)]

Hi Will,
On 2021/6/8 16:52, Will Deacon wrote:
> On Tue, Jun 08, 2021 at 11:33:20AM +0800, Qi Liu wrote:
>> Use common macro PMU_EVENT_ATTR_ID to simplify DSU_EVENT_ATTR.
>>
>> Cc: Will Deacon <will@kernel.org>
>> Cc: Mark Rutland <mark.rutland@arm.com>
>> Signed-off-by: Qi Liu <liuqi115@huawei.com>
>> ---
>>   drivers/perf/arm_dsu_pmu.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/perf/arm_dsu_pmu.c b/drivers/perf/arm_dsu_pmu.c
>> index 196faea..bed8376 100644
>> --- a/drivers/perf/arm_dsu_pmu.c
>> +++ b/drivers/perf/arm_dsu_pmu.c
>> @@ -82,7 +82,7 @@
>>   	})[0].attr.attr)
>>   
>>   #define DSU_EVENT_ATTR(_name, _config)		\
>> -	DSU_EXT_ATTR(_name, dsu_pmu_sysfs_event_show, (unsigned long)_config)
>> +	PMU_EVENT_ATTR_ID(_name, dsu_pmu_sysfs_event_show, _config)
>>   
>>   #define DSU_FORMAT_ATTR(_name, _config)		\
>>   	DSU_EXT_ATTR(_name, dsu_pmu_sysfs_format_show, (char *)_config)
> 
> I'm not convinced this is any simpler. We still have two users of the
> DSU_EXT_ATTR macro and the net effect is no change in line count.
> 
Got it, I'll drop this patch and sent a new patchset.

Thanks,
Qi
> Will
> .
> 


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[PATCH v3 9/9] arm64: perf: Simplify EVENT ATTR macro in perf_event.c

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify ARMV8_EVENT_ATTR.

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 arch/arm64/kernel/perf_event.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index f594957..3101c42 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -165,10 +165,7 @@ armv8pmu_events_sysfs_show(struct device *dev,
 }
 
 #define ARMV8_EVENT_ATTR(name, config)						\
-	(&((struct perf_pmu_events_attr) {					\
-		.attr = __ATTR(name, 0444, armv8pmu_events_sysfs_show, NULL),	\
-		.id = config,							\
-	}).attr.attr)
+	PMU_EVENT_ATTR_ID(name, armv8pmu_events_sysfs_show, config)
 
 static struct attribute *armv8_pmuv3_event_attrs[] = {
 	ARMV8_EVENT_ATTR(sw_incr, ARMV8_PMUV3_PERFCTR_SW_INCR),
-- 
2.7.4

[PATCH v3 9/9] arm64: perf: Simplify EVENT ATTR macro in perf_event.c

[Qi Liu]

Use common macro PMU_EVENT_ATTR_ID to simplify ARMV8_EVENT_ATTR.

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
---
 arch/arm64/kernel/perf_event.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index f594957..3101c42 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -165,10 +165,7 @@ armv8pmu_events_sysfs_show(struct device *dev,
 }
 
 #define ARMV8_EVENT_ATTR(name, config)						\
-	(&((struct perf_pmu_events_attr) {					\
-		.attr = __ATTR(name, 0444, armv8pmu_events_sysfs_show, NULL),	\
-		.id = config,							\
-	}).attr.attr)
+	PMU_EVENT_ATTR_ID(name, armv8pmu_events_sysfs_show, config)
 
 static struct attribute *armv8_pmuv3_event_attrs[] = {
 	ARMV8_EVENT_ATTR(sw_incr, ARMV8_PMUV3_PERFCTR_SW_INCR),
-- 
2.7.4


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Re: [PATCH v3 0/9] drivers/perf: Use general macro to simplify event attributes

[liuqi (BA)]

Hi Will,

Please ignore this patchset, as I forget to add changelog.
I'll resend this latter.

Thanks,
Qi

On 2021/6/8 11:33, Qi Liu wrote:
> This patchset applies a general EVENT_ATTR_ID to simplify event
> attributes in many PMU drivers.
> 
> Qi Liu (9):
>    perf: Add EVENT_ATTR_ID to simplify event attributes
>    drivers/perf: hisi: Simplify EVENT ATTR macro in HiSilicon PMU driver
>    drivers/perf: Simplify EVENT ATTR macro in SMMU PMU driver
>    drivers/perf: Simplify EVENT ATTR macro in qcom_l2_pmu.c
>    drivers/perf: Simplify EVENT ATTR macro in qcom_l3_pmu.c
>    drivers/perf: Simplify EVENT ATTR macro in xgene_pmu.c
>    drivers/perf: Simplify EVENT ATTR macro in fsl_imx8_ddr_perf.c
>    drivers/perf: Simpilfy EVENT ATTR macro in arm_dsu_pmu.c
>    arm64: perf: Simplify EVENT ATTR macro in perf_event.c
> 
>   arch/arm64/kernel/perf_event.c           |  5 +----
>   drivers/perf/arm_dsu_pmu.c               |  2 +-
>   drivers/perf/arm_smmuv3_pmu.c            |  7 ++-----
>   drivers/perf/fsl_imx8_ddr_perf.c         |  7 ++-----
>   drivers/perf/hisilicon/hisi_uncore_pmu.c |  7 +++----
>   drivers/perf/hisilicon/hisi_uncore_pmu.h |  2 +-
>   drivers/perf/qcom_l2_pmu.c               |  7 ++-----
>   drivers/perf/qcom_l3_pmu.c               |  5 +----
>   drivers/perf/xgene_pmu.c                 | 11 ++++-------
>   include/linux/perf_event.h               |  6 ++++++
>   10 files changed, 23 insertions(+), 36 deletions(-)
> 

Re: [PATCH v3 0/9] drivers/perf: Use general macro to simplify event attributes

[liuqi (BA)]

Hi Will,

Please ignore this patchset, as I forget to add changelog.
I'll resend this latter.

Thanks,
Qi

On 2021/6/8 11:33, Qi Liu wrote:
> This patchset applies a general EVENT_ATTR_ID to simplify event
> attributes in many PMU drivers.
> 
> Qi Liu (9):
>    perf: Add EVENT_ATTR_ID to simplify event attributes
>    drivers/perf: hisi: Simplify EVENT ATTR macro in HiSilicon PMU driver
>    drivers/perf: Simplify EVENT ATTR macro in SMMU PMU driver
>    drivers/perf: Simplify EVENT ATTR macro in qcom_l2_pmu.c
>    drivers/perf: Simplify EVENT ATTR macro in qcom_l3_pmu.c
>    drivers/perf: Simplify EVENT ATTR macro in xgene_pmu.c
>    drivers/perf: Simplify EVENT ATTR macro in fsl_imx8_ddr_perf.c
>    drivers/perf: Simpilfy EVENT ATTR macro in arm_dsu_pmu.c
>    arm64: perf: Simplify EVENT ATTR macro in perf_event.c
> 
>   arch/arm64/kernel/perf_event.c           |  5 +----
>   drivers/perf/arm_dsu_pmu.c               |  2 +-
>   drivers/perf/arm_smmuv3_pmu.c            |  7 ++-----
>   drivers/perf/fsl_imx8_ddr_perf.c         |  7 ++-----
>   drivers/perf/hisilicon/hisi_uncore_pmu.c |  7 +++----
>   drivers/perf/hisilicon/hisi_uncore_pmu.h |  2 +-
>   drivers/perf/qcom_l2_pmu.c               |  7 ++-----
>   drivers/perf/qcom_l3_pmu.c               |  5 +----
>   drivers/perf/xgene_pmu.c                 | 11 ++++-------
>   include/linux/perf_event.h               |  6 ++++++
>   10 files changed, 23 insertions(+), 36 deletions(-)
> 


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