[PATCH 12/28] arm64: Add FEAT_NV2p1 detection

[Marc Zyngier]

Add the necessary NV2p1 probing to the cpufeature infrastructure.

Signed-off-by: Marc Zyngier <maz at kernel.org>
---
 arch/arm64/kernel/cpufeature.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 9a22df0c5120f..c9c124b0ccc8e 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -2620,6 +2620,13 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
 			{ /* Sentinel */ }
 		},
 	},
+	{
+		.desc = "FEAT_NV2p1",
+		.capability = ARM64_HAS_NV2P1,
+		.type = ARM64_CPUCAP_SYSTEM_FEATURE,
+		.matches = has_cpuid_feature,
+		ARM64_CPUID_FIELDS(ID_AA64MMFR4_EL1, NV_frac, NV2P1)
+	},
 	{
 		.capability = ARM64_HAS_32BIT_EL0_DO_NOT_USE,
 		.type = ARM64_CPUCAP_SYSTEM_FEATURE,
-- 
2.47.3