From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org
Subject: [PATCH v2 03/27] util: Add i386 CPUINFO_ATOMIC_VMOVDQU
Date: Tue, 23 May 2023 06:47:09 -0700 [thread overview]
Message-ID: <20230523134733.678646-4-richard.henderson@linaro.org> (raw)
In-Reply-To: <20230523134733.678646-1-richard.henderson@linaro.org>
Add a bit to indicate when VMOVDQU is also atomic if aligned.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
host/include/i386/host/cpuinfo.h | 1 +
util/cpuinfo-i386.c | 4 +++-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/host/include/i386/host/cpuinfo.h b/host/include/i386/host/cpuinfo.h
index e6f7461378..a6537123cf 100644
--- a/host/include/i386/host/cpuinfo.h
+++ b/host/include/i386/host/cpuinfo.h
@@ -25,6 +25,7 @@
#define CPUINFO_AVX512DQ (1u << 14)
#define CPUINFO_AVX512VBMI2 (1u << 15)
#define CPUINFO_ATOMIC_VMOVDQA (1u << 16)
+#define CPUINFO_ATOMIC_VMOVDQU (1u << 17)
/* Initialized with a constructor. */
extern unsigned cpuinfo;
diff --git a/util/cpuinfo-i386.c b/util/cpuinfo-i386.c
index 434319aa71..ab6143d9e7 100644
--- a/util/cpuinfo-i386.c
+++ b/util/cpuinfo-i386.c
@@ -77,8 +77,10 @@ unsigned __attribute__((constructor)) cpuinfo_init(void)
* See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104688
*/
__cpuid(0, a, b, c, d);
- if (c == signature_INTEL_ecx || c == signature_AMD_ecx) {
+ if (c == signature_INTEL_ecx) {
info |= CPUINFO_ATOMIC_VMOVDQA;
+ } else if (c == signature_AMD_ecx) {
+ info |= CPUINFO_ATOMIC_VMOVDQA | CPUINFO_ATOMIC_VMOVDQU;
}
}
}
--
2.34.1
next prev parent reply other threads:[~2023-05-23 13:53 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-23 13:47 [PATCH v2 00/27] accel/tcg: Improvements to atomic128.h Richard Henderson
2023-05-23 13:47 ` [PATCH v2 01/27] util: Introduce host-specific cpuinfo.h Richard Henderson
2023-05-23 16:10 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 02/27] util: Add cpuinfo-i386.c Richard Henderson
2023-05-23 16:10 ` Alex Bennée
2023-05-23 13:47 ` Richard Henderson [this message]
2023-05-23 16:13 ` [PATCH v2 03/27] util: Add i386 CPUINFO_ATOMIC_VMOVDQU Alex Bennée
2023-05-23 13:47 ` [PATCH v2 04/27] tcg/i386: Use host/cpuinfo.h Richard Henderson
2023-05-23 16:14 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 05/27] util/bufferiszero: Use i386 host/cpuinfo.h Richard Henderson
2023-05-23 16:18 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 06/27] migration/xbzrle: Shuffle function order Richard Henderson
2023-05-23 16:19 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 07/27] migration/xbzrle: Use i386 host/cpuinfo.h Richard Henderson
2023-05-23 16:21 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 08/27] migration: Build migration_files once Richard Henderson
2023-05-23 16:26 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 09/27] util: Add cpuinfo-aarch64.c Richard Henderson
2023-05-23 16:28 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 10/27] include/host: Split out atomic128-cas.h Richard Henderson
2023-05-23 16:31 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 11/27] include/host: Split out atomic128-ldst.h Richard Henderson
2023-05-23 16:32 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 12/27] meson: Fix detect atomic128 support with optimization Richard Henderson
2023-05-23 16:32 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 13/27] include/qemu: Move CONFIG_ATOMIC128_OPT handling to atomic128.h Richard Henderson
2023-05-23 16:35 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 14/27] target/ppc: Use tcg_gen_qemu_{ld, st}_i128 for LQARX, LQ, STQ Richard Henderson
2023-05-23 16:37 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 15/27] target/s390x: Use tcg_gen_qemu_{ld, st}_i128 for LPQ, STPQ Richard Henderson
2023-05-23 13:50 ` David Hildenbrand
2023-05-23 16:59 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 16/27] accel/tcg: Unify cpu_{ld,st}*_{be,le}_mmu Richard Henderson
2023-05-23 16:40 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 17/27] target/s390x: Use cpu_{ld,st}*_mmu in do_csst Richard Henderson
2023-05-23 13:51 ` David Hildenbrand
2023-05-23 16:44 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 18/27] target/s390x: Always use cpu_atomic_cmpxchgl_be_mmu " Richard Henderson
2023-05-23 16:40 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 19/27] accel/tcg: Remove cpu_atomic_{ld,st}o_*_mmu Richard Henderson
2023-05-23 16:44 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 20/27] accel/tcg: Remove prot argument to atomic_mmu_lookup Richard Henderson
2023-05-23 16:46 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 21/27] accel/tcg: Eliminate #if on HAVE_ATOMIC128 and HAVE_CMPXCHG128 Richard Henderson
2023-05-23 16:47 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 22/27] qemu/atomic128: Split atomic16_read Richard Henderson
2023-05-23 16:49 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 23/27] accel/tcg: Correctly use atomic128.h in ldst_atomicity.c.inc Richard Henderson
2023-05-23 16:50 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 24/27] tcg: Split out tcg/debug-assert.h Richard Henderson
2023-05-23 16:52 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 25/27] qemu/atomic128: Improve cmpxchg fallback for atomic16_set Richard Henderson
2023-05-23 16:54 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 26/27] qemu/atomic128: Add runtime test for FEAT_LSE2 Richard Henderson
2023-05-23 16:57 ` Alex Bennée
2023-05-23 13:47 ` [PATCH v2 27/27] qemu/atomic128: Add x86_64 atomic128-ldst.h Richard Henderson
2023-05-23 16:59 ` Alex Bennée
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