summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--arch/arm64/include/asm/esr.h14
-rw-r--r--arch/arm64/kernel/fpsimd.c2
2 files changed, 9 insertions, 7 deletions
diff --git a/arch/arm64/include/asm/esr.h b/arch/arm64/include/asm/esr.h
index d1b1a33f9a8b..63aed18a933f 100644
--- a/arch/arm64/include/asm/esr.h
+++ b/arch/arm64/include/asm/esr.h
@@ -371,12 +371,14 @@
/*
* ISS values for SME traps
*/
-
-#define ESR_ELx_SME_ISS_SME_DISABLED 0
-#define ESR_ELx_SME_ISS_ILL 1
-#define ESR_ELx_SME_ISS_SM_DISABLED 2
-#define ESR_ELx_SME_ISS_ZA_DISABLED 3
-#define ESR_ELx_SME_ISS_ZT_DISABLED 4
+#define ESR_ELx_SME_ISS_SMTC_MASK GENMASK(2, 0)
+#define ESR_ELx_SME_ISS_SMTC(esr) ((esr) & ESR_ELx_SME_ISS_SMTC_MASK)
+
+#define ESR_ELx_SME_ISS_SMTC_SME_DISABLED 0
+#define ESR_ELx_SME_ISS_SMTC_ILL 1
+#define ESR_ELx_SME_ISS_SMTC_SM_DISABLED 2
+#define ESR_ELx_SME_ISS_SMTC_ZA_DISABLED 3
+#define ESR_ELx_SME_ISS_SMTC_ZT_DISABLED 4
/* ISS field definitions for MOPS exceptions */
#define ESR_ELx_MOPS_ISS_MEM_INST (UL(1) << 24)
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index 8370d55f0353..1ee5f330b8ed 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -1436,7 +1436,7 @@ void do_sme_acc(unsigned long esr, struct pt_regs *regs)
* If this not a trap due to SME being disabled then something
* is being used in the wrong mode, report as SIGILL.
*/
- if (ESR_ELx_ISS(esr) != ESR_ELx_SME_ISS_SME_DISABLED) {
+ if (ESR_ELx_SME_ISS_SMTC(esr) != ESR_ELx_SME_ISS_SMTC_SME_DISABLED) {
force_signal_inject(SIGILL, ILL_ILLOPC, regs->pc, 0);
return;
}