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authorRichard Henderson <richard.henderson@linaro.org>2023-07-13 20:06:15 +0000
committerRichard Henderson <richard.henderson@linaro.org>2023-07-15 08:02:49 +0100
commit76f9d6ad19494290eb2f00d33c6a582ce3447991 (patch)
treeb3f4e2eec70bd0bdad13ed90951a60ade4155c88 /accel
parentdeba78709ae8ce103e2248413857747f804cd1ef (diff)
tcg: Use HAVE_CMPXCHG128 instead of CONFIG_CMPXCHG128
We adjust CONFIG_ATOMIC128 and CONFIG_CMPXCHG128 with CONFIG_ATOMIC128_OPT in atomic128.h. It is difficult to tell when those changes have been applied with the ifdef we must use with CONFIG_CMPXCHG128. So instead use HAVE_CMPXCHG128, which triggers -Werror-undef when the proper header has not been included. Improves tcg_gen_atomic_cmpxchg_i128 for s390x host, which requires CONFIG_ATOMIC128_OPT. Without this we fall back to EXCP_ATOMIC to single-step 128-bit atomics, which is slow enough to cause some tests to time out. Reported-by: Thomas Huth <thuth@redhat.com> Tested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'accel')
-rw-r--r--accel/tcg/atomic_common.c.inc2
-rw-r--r--accel/tcg/cputlb.c2
-rw-r--r--accel/tcg/tcg-runtime.h2
-rw-r--r--accel/tcg/user-exec.c2
4 files changed, 4 insertions, 4 deletions
diff --git a/accel/tcg/atomic_common.c.inc b/accel/tcg/atomic_common.c.inc
index ee222fd7e7..95a5c5ff12 100644
--- a/accel/tcg/atomic_common.c.inc
+++ b/accel/tcg/atomic_common.c.inc
@@ -41,7 +41,7 @@ CMPXCHG_HELPER(cmpxchgq_be, uint64_t)
CMPXCHG_HELPER(cmpxchgq_le, uint64_t)
#endif
-#ifdef CONFIG_CMPXCHG128
+#if HAVE_CMPXCHG128
CMPXCHG_HELPER(cmpxchgo_be, Int128)
CMPXCHG_HELPER(cmpxchgo_le, Int128)
#endif
diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c
index c2b81ec569..e0079c9a9d 100644
--- a/accel/tcg/cputlb.c
+++ b/accel/tcg/cputlb.c
@@ -3105,7 +3105,7 @@ void cpu_st16_mmu(CPUArchState *env, target_ulong addr, Int128 val,
#include "atomic_template.h"
#endif
-#if defined(CONFIG_ATOMIC128) || defined(CONFIG_CMPXCHG128)
+#if defined(CONFIG_ATOMIC128) || HAVE_CMPXCHG128
#define DATA_SIZE 16
#include "atomic_template.h"
#endif
diff --git a/accel/tcg/tcg-runtime.h b/accel/tcg/tcg-runtime.h
index 39e68007f9..186899a2c7 100644
--- a/accel/tcg/tcg-runtime.h
+++ b/accel/tcg/tcg-runtime.h
@@ -58,7 +58,7 @@ DEF_HELPER_FLAGS_5(atomic_cmpxchgq_be, TCG_CALL_NO_WG,
DEF_HELPER_FLAGS_5(atomic_cmpxchgq_le, TCG_CALL_NO_WG,
i64, env, i64, i64, i64, i32)
#endif
-#ifdef CONFIG_CMPXCHG128
+#if HAVE_CMPXCHG128
DEF_HELPER_FLAGS_5(atomic_cmpxchgo_be, TCG_CALL_NO_WG,
i128, env, i64, i128, i128, i32)
DEF_HELPER_FLAGS_5(atomic_cmpxchgo_le, TCG_CALL_NO_WG,
diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c
index df60c7d673..ac38c2bf96 100644
--- a/accel/tcg/user-exec.c
+++ b/accel/tcg/user-exec.c
@@ -1433,7 +1433,7 @@ static void *atomic_mmu_lookup(CPUArchState *env, vaddr addr, MemOpIdx oi,
#include "atomic_template.h"
#endif
-#if defined(CONFIG_ATOMIC128) || defined(CONFIG_CMPXCHG128)
+#if defined(CONFIG_ATOMIC128) || HAVE_CMPXCHG128
#define DATA_SIZE 16
#include "atomic_template.h"
#endif