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-rw-r--r--tools/testing/selftests/rseq/param_test.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/tools/testing/selftests/rseq/param_test.c b/tools/testing/selftests/rseq/param_test.c
index 615252331813..91cf50b2b0e5 100644
--- a/tools/testing/selftests/rseq/param_test.c
+++ b/tools/testing/selftests/rseq/param_test.c
@@ -90,6 +90,30 @@ unsigned int yield_mod_cnt, nr_abort;
#error "Unsupported architecture"
#endif
+#elif defined(__s390__)
+
+#define RSEQ_INJECT_INPUT \
+ , [loop_cnt_1]"m"(loop_cnt[1]) \
+ , [loop_cnt_2]"m"(loop_cnt[2]) \
+ , [loop_cnt_3]"m"(loop_cnt[3]) \
+ , [loop_cnt_4]"m"(loop_cnt[4]) \
+ , [loop_cnt_5]"m"(loop_cnt[5]) \
+ , [loop_cnt_6]"m"(loop_cnt[6])
+
+#define INJECT_ASM_REG "r12"
+
+#define RSEQ_INJECT_CLOBBER \
+ , INJECT_ASM_REG
+
+#define RSEQ_INJECT_ASM(n) \
+ "l %%" INJECT_ASM_REG ", %[loop_cnt_" #n "]\n\t" \
+ "ltr %%" INJECT_ASM_REG ", %%" INJECT_ASM_REG "\n\t" \
+ "je 333f\n\t" \
+ "222:\n\t" \
+ "ahi %%" INJECT_ASM_REG ", -1\n\t" \
+ "jnz 222b\n\t" \
+ "333:\n\t"
+
#elif defined(__ARMEL__)
#define RSEQ_INJECT_INPUT \