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[Qemu-devel] [PULL v2 18/37] tcg: Emit barriers with parallel_cpus
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PULL v2 18/37] tcg: Emit barriers with parallel_cpus |
Date: |
Wed, 26 Oct 2016 09:15:44 -0700 |
Reviewed-by: Emilio G. Cota <address@hidden>
Reviewed-by: Alex Bennée <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
tcg/tcg-op.c | 12 +-----------
1 file changed, 1 insertion(+), 11 deletions(-)
diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c
index cdd61d6..bb2bfee 100644
--- a/tcg/tcg-op.c
+++ b/tcg/tcg-op.c
@@ -150,17 +150,7 @@ void tcg_gen_op6(TCGContext *ctx, TCGOpcode opc, TCGArg
a1, TCGArg a2,
void tcg_gen_mb(TCGBar mb_type)
{
- bool emit_barriers = true;
-
-#ifndef CONFIG_USER_ONLY
- /* TODO: When MTTCG is available for system mode, we will check
- * the following condition and enable emit_barriers
- * (qemu_tcg_mttcg_enabled() && smp_cpus > 1)
- */
- emit_barriers = false;
-#endif
-
- if (emit_barriers) {
+ if (parallel_cpus) {
tcg_gen_op1(&tcg_ctx, INDEX_op_mb, mb_type);
}
}
--
2.7.4
- [Qemu-devel] [PULL v2 04/37] atomics: Add __nocheck atomic operations, (continued)
- [Qemu-devel] [PULL v2 04/37] atomics: Add __nocheck atomic operations, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 09/37] linux-user: enable parallel code generation on clone, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 07/37] int128: Add int128_make128, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 05/37] exec: Avoid direct references to Int128 parts, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 06/37] int128: Use __int128 if available, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 10/37] cputlb: Replace SHIFT with DATA_SIZE, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 14/37] cputlb: Tidy some macros, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 12/37] cputlb: Remove includes from softmmu_template.h, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 13/37] cputlb: Move most of iotlb code out of line, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 11/37] cputlb: Move probe_write out of softmmu_template.h, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 18/37] tcg: Emit barriers with parallel_cpus,
Richard Henderson <=
- [Qemu-devel] [PULL v2 17/37] tcg: Add CONFIG_ATOMIC64, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 15/37] tcg: Add atomic helpers, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 19/37] target-i386: emulate LOCK'ed cmpxchg using cmpxchg helpers, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 22/37] target-i386: emulate LOCK'ed NOT using atomic helper, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 20/37] target-i386: emulate LOCK'ed OP instructions using atomic helpers, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 16/37] tcg: Add atomic128 helpers, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 21/37] target-i386: emulate LOCK'ed INC using atomic helper, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 24/37] target-i386: emulate LOCK'ed XADD using atomic helper, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 26/37] target-i386: emulate XCHG using atomic helper, Richard Henderson, 2016/10/26
- [Qemu-devel] [PULL v2 23/37] target-i386: emulate LOCK'ed NEG using cmpxchg helper, Richard Henderson, 2016/10/26