1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
index 3d63c20ccefc..b64e49bd9d10 100644
--- a/arch/arm64/include/asm/cpufeature.h
+++ b/arch/arm64/include/asm/cpufeature.h
@@ -613,6 +613,13 @@ static inline bool id_aa64pfr1_sme(u64 pfr1)
 	return val > 0;
 }
 
+static inline bool id_aa64pfr0_mpam(u64 pfr0)
+{
+	u32 val = cpuid_feature_extract_unsigned_field(pfr0, ID_AA64PFR0_EL1_MPAM_SHIFT);
+
+	return val > 0;
+}
+
 static inline bool id_aa64pfr1_mte(u64 pfr1)
 {
 	u32 val = cpuid_feature_extract_unsigned_field(pfr1, ID_AA64PFR1_EL1_MTE_SHIFT);
@@ -850,6 +857,16 @@ static inline bool system_supports_haft(void)
 		cpus_have_final_cap(ARM64_HAFT);
 }
 
+static __always_inline bool system_supports_mpam(void)
+{
+	return alternative_has_cap_unlikely(ARM64_MPAM);
+}
+
+static __always_inline bool system_supports_mpam_hcr(void)
+{
+	return alternative_has_cap_unlikely(ARM64_MPAM_HCR);
+}
+
 int do_emulate_mrs(struct pt_regs *regs, u32 sys_reg, u32 rt);
 bool try_emulate_mrs(struct pt_regs *regs, u32 isn);