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From: Robin Murphy <robin.murphy@arm.com>
To: will@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com
Cc: catalin.marinas@arm.com, suzuki.poulose@arm.com,
	thierry.reding@gmail.com, linux-arm-kernel@lists.infradead.org,
	devicetree@vger.kernel.org
Subject: [PATCH v2 2/5] arm64: perf: Simplify registration boilerplate
Date: Tue, 14 Dec 2021 14:16:14 +0000	[thread overview]
Message-ID: <b79477ea3b97f685d00511d4ecd2f686184dca34.1639490264.git.robin.murphy@arm.com> (raw)
In-Reply-To: <cover.1639490264.git.robin.murphy@arm.com>

With the trend for per-core events moving to userspace JSON, registering
names for PMUv3 implementations is increasingly a pure boilerplate
exercise. Let's wrap things a step further so we can generate the basic
PMUv3 init function with a macro invocation, and reduce further new
addition to just 2 lines each.

Suggested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
 arch/arm64/kernel/perf_event.c | 113 +++++++++------------------------
 1 file changed, 31 insertions(+), 82 deletions(-)

v2: Rewrite per Mark's suggestion, cover new NVIDIA PMUs too

diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 035da52e04bf..ed6d8cd2f88f 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -1145,17 +1145,26 @@ static int armv8_pmu_init_nogroups(struct arm_pmu *cpu_pmu, char *name,
 	return armv8_pmu_init(cpu_pmu, name, map_event, NULL, NULL, NULL);
 }
 
-static int armv8_pmuv3_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_pmuv3",
-				       armv8_pmuv3_map_event);
+#define PMUV3_INIT_SIMPLE(name)						\
+static int name##_pmu_init(struct arm_pmu *cpu_pmu)			\
+{									\
+	return armv8_pmu_init_nogroups(cpu_pmu, #name, armv8_pmuv3_map_event);\
 }
 
-static int armv8_a34_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a34",
-				       armv8_pmuv3_map_event);
-}
+PMUV3_INIT_SIMPLE(armv8_pmuv3)
+
+PMUV3_INIT_SIMPLE(armv8_cortex_a34)
+PMUV3_INIT_SIMPLE(armv8_cortex_a55)
+PMUV3_INIT_SIMPLE(armv8_cortex_a65)
+PMUV3_INIT_SIMPLE(armv8_cortex_a75)
+PMUV3_INIT_SIMPLE(armv8_cortex_a76)
+PMUV3_INIT_SIMPLE(armv8_cortex_a77)
+PMUV3_INIT_SIMPLE(armv8_cortex_a78)
+PMUV3_INIT_SIMPLE(armv8_neoverse_e1)
+PMUV3_INIT_SIMPLE(armv8_neoverse_n1)
+
+PMUV3_INIT_SIMPLE(armv8_nvidia_carmel)
+PMUV3_INIT_SIMPLE(armv8_nvidia_denver)
 
 static int armv8_a35_pmu_init(struct arm_pmu *cpu_pmu)
 {
@@ -1169,24 +1178,12 @@ static int armv8_a53_pmu_init(struct arm_pmu *cpu_pmu)
 				       armv8_a53_map_event);
 }
 
-static int armv8_a55_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a55",
-				       armv8_pmuv3_map_event);
-}
-
 static int armv8_a57_pmu_init(struct arm_pmu *cpu_pmu)
 {
 	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a57",
 				       armv8_a57_map_event);
 }
 
-static int armv8_a65_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a65",
-				       armv8_pmuv3_map_event);
-}
-
 static int armv8_a72_pmu_init(struct arm_pmu *cpu_pmu)
 {
 	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a72",
@@ -1199,42 +1196,6 @@ static int armv8_a73_pmu_init(struct arm_pmu *cpu_pmu)
 				       armv8_a73_map_event);
 }
 
-static int armv8_a75_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a75",
-				       armv8_pmuv3_map_event);
-}
-
-static int armv8_a76_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a76",
-				       armv8_pmuv3_map_event);
-}
-
-static int armv8_a77_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a77",
-				       armv8_pmuv3_map_event);
-}
-
-static int armv8_a78_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a78",
-				       armv8_pmuv3_map_event);
-}
-
-static int armv8_e1_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_neoverse_e1",
-				       armv8_pmuv3_map_event);
-}
-
-static int armv8_n1_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_neoverse_n1",
-				       armv8_pmuv3_map_event);
-}
-
 static int armv8_thunder_pmu_init(struct arm_pmu *cpu_pmu)
 {
 	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cavium_thunder",
@@ -1247,38 +1208,26 @@ static int armv8_vulcan_pmu_init(struct arm_pmu *cpu_pmu)
 				       armv8_vulcan_map_event);
 }
 
-static int armv8_carmel_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_nvidia_carmel",
-				       armv8_pmuv3_map_event);
-}
-
-static int armv8_denver_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_nvidia_denver",
-				       armv8_pmuv3_map_event);
-}
-
 static const struct of_device_id armv8_pmu_of_device_ids[] = {
-	{.compatible = "arm,armv8-pmuv3",	.data = armv8_pmuv3_init},
-	{.compatible = "arm,cortex-a34-pmu",	.data = armv8_a34_pmu_init},
+	{.compatible = "arm,armv8-pmuv3",	.data = armv8_pmuv3_pmu_init},
+	{.compatible = "arm,cortex-a34-pmu",	.data = armv8_cortex_a34_pmu_init},
 	{.compatible = "arm,cortex-a35-pmu",	.data = armv8_a35_pmu_init},
 	{.compatible = "arm,cortex-a53-pmu",	.data = armv8_a53_pmu_init},
-	{.compatible = "arm,cortex-a55-pmu",	.data = armv8_a55_pmu_init},
+	{.compatible = "arm,cortex-a55-pmu",	.data = armv8_cortex_a55_pmu_init},
 	{.compatible = "arm,cortex-a57-pmu",	.data = armv8_a57_pmu_init},
-	{.compatible = "arm,cortex-a65-pmu",	.data = armv8_a65_pmu_init},
+	{.compatible = "arm,cortex-a65-pmu",	.data = armv8_cortex_a65_pmu_init},
 	{.compatible = "arm,cortex-a72-pmu",	.data = armv8_a72_pmu_init},
 	{.compatible = "arm,cortex-a73-pmu",	.data = armv8_a73_pmu_init},
-	{.compatible = "arm,cortex-a75-pmu",	.data = armv8_a75_pmu_init},
-	{.compatible = "arm,cortex-a76-pmu",	.data = armv8_a76_pmu_init},
-	{.compatible = "arm,cortex-a77-pmu",	.data = armv8_a77_pmu_init},
-	{.compatible = "arm,cortex-a78-pmu",	.data = armv8_a78_pmu_init},
-	{.compatible = "arm,neoverse-e1-pmu",	.data = armv8_e1_pmu_init},
-	{.compatible = "arm,neoverse-n1-pmu",	.data = armv8_n1_pmu_init},
+	{.compatible = "arm,cortex-a75-pmu",	.data = armv8_cortex_a75_pmu_init},
+	{.compatible = "arm,cortex-a76-pmu",	.data = armv8_cortex_a76_pmu_init},
+	{.compatible = "arm,cortex-a77-pmu",	.data = armv8_cortex_a77_pmu_init},
+	{.compatible = "arm,cortex-a78-pmu",	.data = armv8_cortex_a78_pmu_init},
+	{.compatible = "arm,neoverse-e1-pmu",	.data = armv8_neoverse_e1_pmu_init},
+	{.compatible = "arm,neoverse-n1-pmu",	.data = armv8_neoverse_n1_pmu_init},
 	{.compatible = "cavium,thunder-pmu",	.data = armv8_thunder_pmu_init},
 	{.compatible = "brcm,vulcan-pmu",	.data = armv8_vulcan_pmu_init},
-	{.compatible = "nvidia,carmel-pmu",	.data = armv8_carmel_pmu_init},
-	{.compatible = "nvidia,denver-pmu",	.data = armv8_denver_pmu_init},
+	{.compatible = "nvidia,carmel-pmu",	.data = armv8_nvidia_carmel_pmu_init},
+	{.compatible = "nvidia,denver-pmu",	.data = armv8_nvidia_denver_pmu_init},
 	{},
 };
 
@@ -1301,7 +1250,7 @@ static int __init armv8_pmu_driver_init(void)
 	if (acpi_disabled)
 		return platform_driver_register(&armv8_pmu_driver);
 	else
-		return arm_pmu_acpi_probe(armv8_pmuv3_init);
+		return arm_pmu_acpi_probe(armv8_pmuv3_pmu_init);
 }
 device_initcall(armv8_pmu_driver_init)
 
-- 
2.28.0.dirty


WARNING: multiple messages have this Message-ID (diff)
From: Robin Murphy <robin.murphy@arm.com>
To: will@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com
Cc: catalin.marinas@arm.com, suzuki.poulose@arm.com,
	thierry.reding@gmail.com, linux-arm-kernel@lists.infradead.org,
	devicetree@vger.kernel.org
Subject: [PATCH v2 2/5] arm64: perf: Simplify registration boilerplate
Date: Tue, 14 Dec 2021 14:16:14 +0000	[thread overview]
Message-ID: <b79477ea3b97f685d00511d4ecd2f686184dca34.1639490264.git.robin.murphy@arm.com> (raw)
In-Reply-To: <cover.1639490264.git.robin.murphy@arm.com>

With the trend for per-core events moving to userspace JSON, registering
names for PMUv3 implementations is increasingly a pure boilerplate
exercise. Let's wrap things a step further so we can generate the basic
PMUv3 init function with a macro invocation, and reduce further new
addition to just 2 lines each.

Suggested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
 arch/arm64/kernel/perf_event.c | 113 +++++++++------------------------
 1 file changed, 31 insertions(+), 82 deletions(-)

v2: Rewrite per Mark's suggestion, cover new NVIDIA PMUs too

diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 035da52e04bf..ed6d8cd2f88f 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -1145,17 +1145,26 @@ static int armv8_pmu_init_nogroups(struct arm_pmu *cpu_pmu, char *name,
 	return armv8_pmu_init(cpu_pmu, name, map_event, NULL, NULL, NULL);
 }
 
-static int armv8_pmuv3_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_pmuv3",
-				       armv8_pmuv3_map_event);
+#define PMUV3_INIT_SIMPLE(name)						\
+static int name##_pmu_init(struct arm_pmu *cpu_pmu)			\
+{									\
+	return armv8_pmu_init_nogroups(cpu_pmu, #name, armv8_pmuv3_map_event);\
 }
 
-static int armv8_a34_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a34",
-				       armv8_pmuv3_map_event);
-}
+PMUV3_INIT_SIMPLE(armv8_pmuv3)
+
+PMUV3_INIT_SIMPLE(armv8_cortex_a34)
+PMUV3_INIT_SIMPLE(armv8_cortex_a55)
+PMUV3_INIT_SIMPLE(armv8_cortex_a65)
+PMUV3_INIT_SIMPLE(armv8_cortex_a75)
+PMUV3_INIT_SIMPLE(armv8_cortex_a76)
+PMUV3_INIT_SIMPLE(armv8_cortex_a77)
+PMUV3_INIT_SIMPLE(armv8_cortex_a78)
+PMUV3_INIT_SIMPLE(armv8_neoverse_e1)
+PMUV3_INIT_SIMPLE(armv8_neoverse_n1)
+
+PMUV3_INIT_SIMPLE(armv8_nvidia_carmel)
+PMUV3_INIT_SIMPLE(armv8_nvidia_denver)
 
 static int armv8_a35_pmu_init(struct arm_pmu *cpu_pmu)
 {
@@ -1169,24 +1178,12 @@ static int armv8_a53_pmu_init(struct arm_pmu *cpu_pmu)
 				       armv8_a53_map_event);
 }
 
-static int armv8_a55_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a55",
-				       armv8_pmuv3_map_event);
-}
-
 static int armv8_a57_pmu_init(struct arm_pmu *cpu_pmu)
 {
 	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a57",
 				       armv8_a57_map_event);
 }
 
-static int armv8_a65_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a65",
-				       armv8_pmuv3_map_event);
-}
-
 static int armv8_a72_pmu_init(struct arm_pmu *cpu_pmu)
 {
 	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a72",
@@ -1199,42 +1196,6 @@ static int armv8_a73_pmu_init(struct arm_pmu *cpu_pmu)
 				       armv8_a73_map_event);
 }
 
-static int armv8_a75_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a75",
-				       armv8_pmuv3_map_event);
-}
-
-static int armv8_a76_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a76",
-				       armv8_pmuv3_map_event);
-}
-
-static int armv8_a77_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a77",
-				       armv8_pmuv3_map_event);
-}
-
-static int armv8_a78_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a78",
-				       armv8_pmuv3_map_event);
-}
-
-static int armv8_e1_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_neoverse_e1",
-				       armv8_pmuv3_map_event);
-}
-
-static int armv8_n1_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_neoverse_n1",
-				       armv8_pmuv3_map_event);
-}
-
 static int armv8_thunder_pmu_init(struct arm_pmu *cpu_pmu)
 {
 	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cavium_thunder",
@@ -1247,38 +1208,26 @@ static int armv8_vulcan_pmu_init(struct arm_pmu *cpu_pmu)
 				       armv8_vulcan_map_event);
 }
 
-static int armv8_carmel_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_nvidia_carmel",
-				       armv8_pmuv3_map_event);
-}
-
-static int armv8_denver_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_nvidia_denver",
-				       armv8_pmuv3_map_event);
-}
-
 static const struct of_device_id armv8_pmu_of_device_ids[] = {
-	{.compatible = "arm,armv8-pmuv3",	.data = armv8_pmuv3_init},
-	{.compatible = "arm,cortex-a34-pmu",	.data = armv8_a34_pmu_init},
+	{.compatible = "arm,armv8-pmuv3",	.data = armv8_pmuv3_pmu_init},
+	{.compatible = "arm,cortex-a34-pmu",	.data = armv8_cortex_a34_pmu_init},
 	{.compatible = "arm,cortex-a35-pmu",	.data = armv8_a35_pmu_init},
 	{.compatible = "arm,cortex-a53-pmu",	.data = armv8_a53_pmu_init},
-	{.compatible = "arm,cortex-a55-pmu",	.data = armv8_a55_pmu_init},
+	{.compatible = "arm,cortex-a55-pmu",	.data = armv8_cortex_a55_pmu_init},
 	{.compatible = "arm,cortex-a57-pmu",	.data = armv8_a57_pmu_init},
-	{.compatible = "arm,cortex-a65-pmu",	.data = armv8_a65_pmu_init},
+	{.compatible = "arm,cortex-a65-pmu",	.data = armv8_cortex_a65_pmu_init},
 	{.compatible = "arm,cortex-a72-pmu",	.data = armv8_a72_pmu_init},
 	{.compatible = "arm,cortex-a73-pmu",	.data = armv8_a73_pmu_init},
-	{.compatible = "arm,cortex-a75-pmu",	.data = armv8_a75_pmu_init},
-	{.compatible = "arm,cortex-a76-pmu",	.data = armv8_a76_pmu_init},
-	{.compatible = "arm,cortex-a77-pmu",	.data = armv8_a77_pmu_init},
-	{.compatible = "arm,cortex-a78-pmu",	.data = armv8_a78_pmu_init},
-	{.compatible = "arm,neoverse-e1-pmu",	.data = armv8_e1_pmu_init},
-	{.compatible = "arm,neoverse-n1-pmu",	.data = armv8_n1_pmu_init},
+	{.compatible = "arm,cortex-a75-pmu",	.data = armv8_cortex_a75_pmu_init},
+	{.compatible = "arm,cortex-a76-pmu",	.data = armv8_cortex_a76_pmu_init},
+	{.compatible = "arm,cortex-a77-pmu",	.data = armv8_cortex_a77_pmu_init},
+	{.compatible = "arm,cortex-a78-pmu",	.data = armv8_cortex_a78_pmu_init},
+	{.compatible = "arm,neoverse-e1-pmu",	.data = armv8_neoverse_e1_pmu_init},
+	{.compatible = "arm,neoverse-n1-pmu",	.data = armv8_neoverse_n1_pmu_init},
 	{.compatible = "cavium,thunder-pmu",	.data = armv8_thunder_pmu_init},
 	{.compatible = "brcm,vulcan-pmu",	.data = armv8_vulcan_pmu_init},
-	{.compatible = "nvidia,carmel-pmu",	.data = armv8_carmel_pmu_init},
-	{.compatible = "nvidia,denver-pmu",	.data = armv8_denver_pmu_init},
+	{.compatible = "nvidia,carmel-pmu",	.data = armv8_nvidia_carmel_pmu_init},
+	{.compatible = "nvidia,denver-pmu",	.data = armv8_nvidia_denver_pmu_init},
 	{},
 };
 
@@ -1301,7 +1250,7 @@ static int __init armv8_pmu_driver_init(void)
 	if (acpi_disabled)
 		return platform_driver_register(&armv8_pmu_driver);
 	else
-		return arm_pmu_acpi_probe(armv8_pmuv3_init);
+		return arm_pmu_acpi_probe(armv8_pmuv3_pmu_init);
 }
 device_initcall(armv8_pmu_driver_init)
 
-- 
2.28.0.dirty


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  parent reply	other threads:[~2021-12-14 14:16 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-14 14:16 [PATCH v2 0/5] arm64: PMU updates Robin Murphy
2021-12-14 14:16 ` Robin Murphy
2021-12-14 14:16 ` [PATCH v2 1/5] arm64: perf: Support Denver and Carmel PMUs Robin Murphy
2021-12-14 14:16   ` Robin Murphy
2021-12-14 14:16 ` Robin Murphy [this message]
2021-12-14 14:16   ` [PATCH v2 2/5] arm64: perf: Simplify registration boilerplate Robin Murphy
2021-12-14 14:16 ` [PATCH v2 3/5] arm64: perf: Support new DT compatibles Robin Murphy
2021-12-14 14:16   ` Robin Murphy
2021-12-14 14:16 ` [PATCH v2 4/5] dt-bindings: perf: Convert Arm DSU to schema Robin Murphy
2021-12-14 14:16   ` Robin Murphy
2021-12-14 14:36   ` Suzuki K Poulose
2021-12-14 14:36     ` Suzuki K Poulose
2021-12-14 20:38   ` Rob Herring
2021-12-14 20:38     ` Rob Herring
2021-12-14 14:16 ` [PATCH v2 5/5] dt-bindings: perf: Add compatible for Arm DSU-110 Robin Murphy
2021-12-14 14:16   ` Robin Murphy
2021-12-14 14:42   ` Suzuki K Poulose
2021-12-14 14:42     ` Suzuki K Poulose
2021-12-14 14:59     ` Robin Murphy
2021-12-14 14:59       ` Robin Murphy
2021-12-14 18:54       ` Suzuki K Poulose
2021-12-14 18:54         ` Suzuki K Poulose
2021-12-14 20:41   ` Rob Herring
2021-12-14 20:41     ` Rob Herring
2021-12-14 18:33 ` [PATCH v2 0/5] arm64: PMU updates Will Deacon
2021-12-14 18:33   ` Will Deacon
2021-12-14 19:02   ` Robin Murphy
2021-12-14 19:02     ` Robin Murphy
2021-12-14 19:32     ` Will Deacon
2021-12-14 19:32       ` Will Deacon

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