1 files changed, 140 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/arm_pmuv3.h b/arch/arm64/include/asm/arm_pmuv3.h
new file mode 100644
index 000000000000..c27404fa4418
--- /dev/null
+++ b/arch/arm64/include/asm/arm_pmuv3.h
@@ -0,0 +1,140 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2012 ARM Ltd.
+ */
+
+#ifndef __ASM_PMUV3_H
+#define __ASM_PMUV3_H
+
+#include <linux/kvm_host.h>
+
+#include <asm/cpufeature.h>
+#include <asm/sysreg.h>
+
+#define RETURN_READ_PMEVCNTRN(n) \
+	return read_sysreg(pmevcntr##n##_el0)
+static inline unsigned long read_pmevcntrn(int n)
+{
+	PMEVN_SWITCH(n, RETURN_READ_PMEVCNTRN);
+	return 0;
+}
+
+#define WRITE_PMEVCNTRN(n) \
+	write_sysreg(val, pmevcntr##n##_el0)
+static inline void write_pmevcntrn(int n, unsigned long val)
+{
+	PMEVN_SWITCH(n, WRITE_PMEVCNTRN);
+}
+
+#define WRITE_PMEVTYPERN(n) \
+	write_sysreg(val, pmevtyper##n##_el0)
+static inline void write_pmevtypern(int n, unsigned long val)
+{
+	PMEVN_SWITCH(n, WRITE_PMEVTYPERN);
+}
+
+static inline unsigned long read_pmmir(void)
+{
+	return read_cpuid(PMMIR_EL1);
+}
+
+static inline u32 read_pmuver(void)
+{
+	u64 dfr0 = read_sysreg(id_aa64dfr0_el1);
+
+	return cpuid_feature_extract_unsigned_field(dfr0,
+			ID_AA64DFR0_EL1_PMUVer_SHIFT);
+}
+
+static inline void write_pmcr(u64 val)
+{
+	write_sysreg(val, pmcr_el0);
+}
+
+static inline u64 read_pmcr(void)
+{
+	return read_sysreg(pmcr_el0);
+}
+
+static inline void write_pmselr(u32 val)
+{
+	write_sysreg(val, pmselr_el0);
+}
+
+static inline void write_pmccntr(u64 val)
+{
+	write_sysreg(val, pmccntr_el0);
+}
+
+static inline u64 read_pmccntr(void)
+{
+	return read_sysreg(pmccntr_el0);
+}
+
+static inline void write_pmcntenset(u32 val)
+{
+	write_sysreg(val, pmcntenset_el0);
+}
+
+static inline void write_pmcntenclr(u32 val)
+{
+	write_sysreg(val, pmcntenclr_el0);
+}
+
+static inline void write_pmintenset(u32 val)
+{
+	write_sysreg(val, pmintenset_el1);
+}
+
+static inline void write_pmintenclr(u32 val)
+{
+	write_sysreg(val, pmintenclr_el1);
+}
+
+static inline void write_pmccfiltr(u64 val)
+{
+	write_sysreg(val, pmccfiltr_el0);
+}
+
+static inline void write_pmovsclr(u32 val)
+{
+	write_sysreg(val, pmovsclr_el0);
+}
+
+static inline u32 read_pmovsclr(void)
+{
+	return read_sysreg(pmovsclr_el0);
+}
+
+static inline void write_pmuserenr(u32 val)
+{
+	write_sysreg(val, pmuserenr_el0);
+}
+
+static inline u64 read_pmceid0(void)
+{
+	return read_sysreg(pmceid0_el0);
+}
+
+static inline u64 read_pmceid1(void)
+{
+	return read_sysreg(pmceid1_el0);
+}
+
+static inline bool pmuv3_implemented(int pmuver)
+{
+	return !(pmuver == ID_AA64DFR0_EL1_PMUVer_IMP_DEF ||
+		 pmuver == ID_AA64DFR0_EL1_PMUVer_NI);
+}
+
+static inline bool is_pmuv3p4(int pmuver)
+{
+	return pmuver >= ID_AA64DFR0_EL1_PMUVer_V3P4;
+}
+
+static inline bool is_pmuv3p5(int pmuver)
+{
+	return pmuver >= ID_AA64DFR0_EL1_PMUVer_V3P5;
+}
+
+#endif