[PATCH 0/2] Add support for ARM Cortex-A78 PMU

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Revision v1 of 2 in this series.

3 messages, 1 author, 2021-02-03 · open the first message on its own page

[PATCH 0/2] Add support for ARM Cortex-A78 PMU

From: Seiya Wang <hidden>
Date: 2021-02-03 02:59:58 

Add support for ARM Cortex-A78 PMU since it will be used in
new Mediatek SoC.

Based on v5.11-rc6

Seiya Wang (2):
  arm64: perf: add support for Cortex-A78
  dt-bindings: arm: add Cortex-A78 binding

 Documentation/devicetree/bindings/arm/pmu.yaml | 1 +
 arch/arm64/kernel/perf_event.c                 | 7 +++++++
 2 files changed, 8 insertions(+)

--
2.14.1
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[PATCH 1/2] arm64: perf: add support for Cortex-A78

From: Seiya Wang <hidden>
Date: 2021-02-03 03:06:16 

Add support for Cortex-A78 using generic PMUv3 for now.

Signed-off-by: Seiya Wang <redacted>
---
 arch/arm64/kernel/perf_event.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 38bb07eff872..62ec2b4ea403 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -1190,6 +1190,12 @@ static int armv8_a77_pmu_init(struct arm_pmu *cpu_pmu)
 				       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",
@@ -1227,6 +1233,7 @@ static const struct of_device_id armv8_pmu_of_device_ids[] = {
 	{.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 = "cavium,thunder-pmu",	.data = armv8_thunder_pmu_init},
-- 
2.14.1
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[PATCH 2/2] dt-bindings: arm: add Cortex-A78 binding

From: Seiya Wang <hidden>
Date: 2021-02-03 03:07:04 

Add compatible for Cortex-A78 PMU

Change-Id: I427a047d10673105692353da4f5c6f6083f21665
Signed-off-by: Seiya Wang <redacted>
---
 Documentation/devicetree/bindings/arm/pmu.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/arm/pmu.yaml b/Documentation/devicetree/bindings/arm/pmu.yaml
index 693ef3f185a8..e17ac049e890 100644
--- a/Documentation/devicetree/bindings/arm/pmu.yaml
+++ b/Documentation/devicetree/bindings/arm/pmu.yaml
@@ -43,6 +43,7 @@ properties:
           - arm,cortex-a75-pmu
           - arm,cortex-a76-pmu
           - arm,cortex-a77-pmu
+          - arm,cortex-a78-pmu
           - arm,neoverse-e1-pmu
           - arm,neoverse-n1-pmu
           - brcm,vulcan-pmu
-- 
2.14.1
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