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-rw-r--r--arch/arm64/include/asm/cpufeature.h2
-rw-r--r--arch/arm64/kernel/cpufeature.c7
2 files changed, 8 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
index 8bb4f1527b26..c07c5d1cd04a 100644
--- a/arch/arm64/include/asm/cpufeature.h
+++ b/arch/arm64/include/asm/cpufeature.h
@@ -78,6 +78,8 @@ struct arm64_ftr_reg {
const struct arm64_ftr_bits *ftr_bits;
};
+extern struct arm64_ftr_reg arm64_ftr_reg_ctrel0;
+
/* scope of capability check */
enum {
SCOPE_SYSTEM,
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index cc7451a27d94..c3d7ae48f92d 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -155,6 +155,11 @@ static const struct arm64_ftr_bits ftr_ctr[] = {
ARM64_FTR_END,
};
+struct arm64_ftr_reg arm64_ftr_reg_ctrel0 = {
+ .name = "SYS_CTR_EL0",
+ .ftr_bits = ftr_ctr
+};
+
static const struct arm64_ftr_bits ftr_id_mmfr0[] = {
S_ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, 28, 4, 0xf), /* InnerShr */
ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, 24, 4, 0), /* FCSE */
@@ -318,7 +323,7 @@ static const struct __ftr_reg_entry {
ARM64_FTR_REG(SYS_ID_AA64MMFR2_EL1, ftr_id_aa64mmfr2),
/* Op1 = 3, CRn = 0, CRm = 0 */
- ARM64_FTR_REG(SYS_CTR_EL0, ftr_ctr),
+ { SYS_CTR_EL0, &arm64_ftr_reg_ctrel0 },
ARM64_FTR_REG(SYS_DCZID_EL0, ftr_dczid),
/* Op1 = 3, CRn = 14, CRm = 0 */