RISC-V: Add a perf platform driver

Implement a perf platform driver that can support all the essential perf features in future. It can also accommodate both SBI based perf driver and legacy driver at the same time. Most of the common functionality between the two drivers are kept in this driver while SBI specific functionality will be implemented in SBI specific driver. Signed-off-by: Atish Patra <atish.patra@wdc.com>
atishp04 · Mar 18, 2021 · 5009c84a60b998b44c7c8481984b5553bfc0986c · 5009c84
1 parent 37bf8fd
commit 5009c84a60b998b44c7c8481984b5553bfc0986c
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diff --git a/drivers/perf/Kconfig b/drivers/perf/Kconfig
@@ -56,6 +56,14 @@ config ARM_PMU
 	  Say y if you want to use CPU performance monitors on ARM-based
 	  systems.
 
+config RISCV_PMU
+	depends on RISCV
+	bool "RISC-V PMU framework"
+	default y
+	help
+	  Say y if you want to use CPU performance monitors on RISCV-based
+	  systems.
+
 config ARM_PMU_ACPI
 	depends on ARM_PMU && ACPI
 	def_bool y

diff --git a/drivers/perf/Makefile b/drivers/perf/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_FSL_IMX8_DDR_PMU) += fsl_imx8_ddr_perf.o
 obj-$(CONFIG_HISI_PMU) += hisilicon/
 obj-$(CONFIG_QCOM_L2_PMU)	+= qcom_l2_pmu.o
 obj-$(CONFIG_QCOM_L3_PMU) += qcom_l3_pmu.o
+obj-$(CONFIG_RISCV_PMU) += riscv_pmu.o
 obj-$(CONFIG_THUNDERX2_PMU) += thunderx2_pmu.o
 obj-$(CONFIG_XGENE_PMU) += xgene_pmu.o
 obj-$(CONFIG_ARM_SPE_PMU) += arm_spe_pmu.o