diff options
Diffstat (limited to 'tools/testing/selftests/arm64/signal/test_signals_utils.h')
| -rw-r--r-- | tools/testing/selftests/arm64/signal/test_signals_utils.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/testing/selftests/arm64/signal/test_signals_utils.h b/tools/testing/selftests/arm64/signal/test_signals_utils.h index 1e80808ee105..36fc12b3cd60 100644 --- a/tools/testing/selftests/arm64/signal/test_signals_utils.h +++ b/tools/testing/selftests/arm64/signal/test_signals_utils.h @@ -6,6 +6,7 @@ #include <assert.h> #include <stdio.h> +#include <stdint.h> #include <string.h> #include <linux/compiler.h> @@ -47,6 +48,15 @@ void test_result(struct tdescr *td); _arg1; \ }) +static inline __attribute__((always_inline)) uint64_t get_gcspr_el0(void) +{ + uint64_t val; + + asm volatile("mrs %0, S3_3_C2_C5_1" : "=r" (val)); + + return val; +} + static inline bool feats_ok(struct tdescr *td) { if (td->feats_incompatible & td->feats_supported) |