From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: qemu-arm@nongnu.org, Peter Maydell <peter.maydell@linaro.org>
Subject: [PATCH 03/27] util: Add i386 CPUINFO_ATOMIC_VMOVDQU
Date: Sat, 20 May 2023 09:26:10 -0700 [thread overview]
Message-ID: <20230520162634.3991009-4-richard.henderson@linaro.org> (raw)
In-Reply-To: <20230520162634.3991009-1-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:[~2023-05-20 16:27 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-20 16:26 [PATCH 00/27] accel/tcg: Improvements to atomic128.h Richard Henderson
2023-05-20 16:26 ` [PATCH 01/27] util: Introduce host-specific cpuinfo.h Richard Henderson
2023-05-21 10:47 ` Philippe Mathieu-Daudé
2023-05-23 15:56 ` Alex Bennée
2023-05-20 16:26 ` [PATCH 02/27] util: Add cpuinfo-i386.c Richard Henderson
2023-05-21 11:28 ` Philippe Mathieu-Daudé
2023-05-21 15:05 ` Richard Henderson
2023-05-23 16:01 ` Alex Bennée
2023-05-20 16:26 ` Richard Henderson [this message]
2023-05-20 16:26 ` [PATCH 04/27] tcg/i386: Use host/cpuinfo.h Richard Henderson
2023-05-20 16:26 ` [PATCH 05/27] util/bufferiszero: Use i386 host/cpuinfo.h Richard Henderson
2023-05-20 16:26 ` [PATCH 06/27] migration/xbzrle: Shuffle function order Richard Henderson
2023-05-20 16:26 ` [PATCH 07/27] migration/xbzrle: Use i386 host/cpuinfo.h Richard Henderson
2023-05-20 16:26 ` [PATCH 08/27] migration: Build migration_files once Richard Henderson
2023-05-20 16:26 ` [PATCH 09/27] util: Add cpuinfo-aarch64.c Richard Henderson
2023-05-20 16:26 ` [PATCH 10/27] include/host: Split out atomic128-cas.h Richard Henderson
2023-05-21 10:44 ` Philippe Mathieu-Daudé
2023-05-20 16:26 ` [PATCH 11/27] include/host: Split out atomic128-ldst.h Richard Henderson
2023-05-20 16:26 ` [PATCH 12/27] meson: Fix detect atomic128 support with optimization Richard Henderson
2023-05-21 10:54 ` Philippe Mathieu-Daudé
2023-05-20 16:26 ` [PATCH 13/27] include/qemu: Move CONFIG_ATOMIC128_OPT handling to atomic128.h Richard Henderson
2023-05-20 16:26 ` [PATCH 14/27] target/ppc: Use tcg_gen_qemu_{ld, st}_i128 for LQARX, LQ, STQ Richard Henderson
2023-05-20 16:26 ` [PATCH 15/27] target/s390x: Use tcg_gen_qemu_{ld, st}_i128 for LPQ, STPQ Richard Henderson
2023-05-22 8:35 ` [PATCH 15/27] target/s390x: Use tcg_gen_qemu_{ld,st}_i128 " David Hildenbrand
2023-05-22 14:15 ` Richard Henderson
2023-05-20 16:26 ` [PATCH 16/27] accel/tcg: Unify cpu_{ld,st}*_{be,le}_mmu Richard Henderson
2023-05-21 11:15 ` Philippe Mathieu-Daudé
2023-05-21 15:00 ` Richard Henderson
2023-05-22 6:39 ` Philippe Mathieu-Daudé
2023-05-22 16:24 ` Richard Henderson
2023-05-20 16:26 ` [PATCH 17/27] target/s390x: Use cpu_{ld,st}*_mmu in do_csst Richard Henderson
2023-05-21 11:21 ` Philippe Mathieu-Daudé
2023-05-21 15:01 ` Richard Henderson
2023-05-22 8:43 ` David Hildenbrand
2023-05-20 16:26 ` [PATCH 18/27] target/s390x: Always use cpu_atomic_cmpxchgl_be_mmu " Richard Henderson
2023-05-22 8:44 ` David Hildenbrand
2023-05-20 16:26 ` [PATCH 19/27] accel/tcg: Remove cpu_atomic_{ld,st}o_*_mmu Richard Henderson
2023-05-20 16:26 ` [PATCH 20/27] accel/tcg: Remove prot argument to atomic_mmu_lookup Richard Henderson
2023-05-20 16:26 ` [PATCH 21/27] accel/tcg: Eliminate #if on HAVE_ATOMIC128 and HAVE_CMPXCHG128 Richard Henderson
2023-05-20 16:26 ` [PATCH 22/27] qemu/atomic128: Split atomic16_read Richard Henderson
2023-05-20 16:26 ` [PATCH 23/27] accel/tcg: Correctly use atomic128.h in ldst_atomicity.c.inc Richard Henderson
2023-05-20 16:26 ` [PATCH 24/27] tcg: Split out tcg/debug-assert.h Richard Henderson
2023-05-21 11:25 ` Philippe Mathieu-Daudé
2023-05-20 16:26 ` [PATCH 25/27] qemu/atomic128: Improve cmpxchg fallback for atomic16_set Richard Henderson
2023-05-20 16:26 ` [PATCH 26/27] qemu/atomic128: Add runtime test for FEAT_LSE2 Richard Henderson
2023-05-20 16:26 ` [PATCH 27/27] qemu/atomic128: Add x86_64 atomic128-ldst.h Richard Henderson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230520162634.3991009-4-richard.henderson@linaro.org \
--to=richard.henderson@linaro.org \
--cc=peter.maydell@linaro.org \
--cc=qemu-arm@nongnu.org \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).