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* [glibc] <sys/platform/x86.h>: Add RTM_FORCE_ABORT support
@ 2023-04-05 22:44 H.J. Lu
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From: H.J. Lu @ 2023-04-05 22:44 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f47b7d96fbecc6a81c144e7d152b1cb748efd682
commit f47b7d96fbecc6a81c144e7d152b1cb748efd682
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Apr 5 09:21:31 2023 -0700
<sys/platform/x86.h>: Add RTM_FORCE_ABORT support
Add RTM_FORCE_ABORT support to <sys/platform/x86.h>.
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
Diff:
---
manual/platform.texi | 3 +++
sysdeps/x86/bits/platform/x86.h | 2 +-
sysdeps/x86/tst-get-cpu-features.c | 1 +
3 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/manual/platform.texi b/manual/platform.texi
index 4453f6e1f4..2ab687cbba 100644
--- a/manual/platform.texi
+++ b/manual/platform.texi
@@ -539,6 +539,9 @@ capability.
@item
@code{RTM_ALWAYS_ABORT} -- Transactions always abort, making RTM unusable.
+@item
+@code{RTM_FORCE_ABORT} -- TSX_FORCE_ABORT MSR.
+
@item
@code{SDBG} -- IA32_DEBUG_INTERFACE MSR for silicon debug.
diff --git a/sysdeps/x86/bits/platform/x86.h b/sysdeps/x86/bits/platform/x86.h
index ee5be8190f..6d9dd6dacf 100644
--- a/sysdeps/x86/bits/platform/x86.h
+++ b/sysdeps/x86/bits/platform/x86.h
@@ -213,7 +213,7 @@ enum
x86_cpu_MD_CLEAR = x86_cpu_index_7_edx + 10,
x86_cpu_RTM_ALWAYS_ABORT = x86_cpu_index_7_edx + 11,
x86_cpu_INDEX_7_EDX_12 = x86_cpu_index_7_edx + 12,
- x86_cpu_INDEX_7_EDX_13 = x86_cpu_index_7_edx + 13,
+ x86_cpu_RTM_FORCE_ABORT = x86_cpu_index_7_edx + 13,
x86_cpu_SERIALIZE = x86_cpu_index_7_edx + 14,
x86_cpu_HYBRID = x86_cpu_index_7_edx + 15,
x86_cpu_TSXLDTRK = x86_cpu_index_7_edx + 16,
diff --git a/sysdeps/x86/tst-get-cpu-features.c b/sysdeps/x86/tst-get-cpu-features.c
index 1979da2174..8b7e70aee1 100644
--- a/sysdeps/x86/tst-get-cpu-features.c
+++ b/sysdeps/x86/tst-get-cpu-features.c
@@ -162,6 +162,7 @@ do_test (void)
CHECK_CPU_FEATURE_PRESENT (AVX512_VP2INTERSECT);
CHECK_CPU_FEATURE_PRESENT (MD_CLEAR);
CHECK_CPU_FEATURE_PRESENT (RTM_ALWAYS_ABORT);
+ CHECK_CPU_FEATURE_PRESENT (RTM_FORCE_ABORT);
CHECK_CPU_FEATURE_PRESENT (SERIALIZE);
CHECK_CPU_FEATURE_PRESENT (HYBRID);
CHECK_CPU_FEATURE_PRESENT (TSXLDTRK);
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