rpms/glibc
7
0
Fork 1
Code Issues Pull Requests Releases Activity
52f0fdc4a1
glibc/glibc-upstream-2.33-14.patch
DistroBaker 0bc968985e Merged update from upstream sources 
This is an automated DistroBaker update from upstream sources.
If you do not know what this is about or would like to opt out,
contact the OSCI team.

Source: https://src.fedoraproject.org/rpms/glibc.git#df07cd507e60fb1effac0d28d1bb0137235725ee
2021-03-17 07:50:51 +00:00

194 lines
7.2 KiB
Diff
Raw Blame History

commit 64f6c287ad3ccd807b7d4c694f4a91e2a662fed5
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sat Mar 6 10:19:32 2021 -0800
x86: Handle _SC_LEVEL1_ICACHE_LINESIZE [BZ #27444]
commit 2d651eb9265d1366d7b9e881bfddd46db9c1ecc4
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Sep 18 07:55:14 2020 -0700
x86: Move x86 processor cache info to cpu_features
missed _SC_LEVEL1_ICACHE_LINESIZE.
1. Add level1_icache_linesize to struct cpu_features.
2. Initialize level1_icache_linesize by calling handle_intel,
handle_zhaoxin and handle_amd with _SC_LEVEL1_ICACHE_LINESIZE.
3. Return level1_icache_linesize for _SC_LEVEL1_ICACHE_LINESIZE.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
(cherry picked from commit f53ffc9b90cbd92fa5518686daf4091bdd1d4889)
diff --git a/sysdeps/x86/Makefile b/sysdeps/x86/Makefile
index dd826743426ffc9c..d231263051f1c242 100644
--- a/sysdeps/x86/Makefile
+++ b/sysdeps/x86/Makefile
@@ -208,3 +208,11 @@ $(objpfx)check-cet.out: $(..)sysdeps/x86/check-cet.awk \
generated += check-cet.out
endif
endif
+
+ifeq ($(subdir),posix)
+tests += \
+ tst-sysconf-cache-linesize \
+ tst-sysconf-cache-linesize-static
+tests-static += \
+ tst-sysconf-cache-linesize-static
+endif
diff --git a/sysdeps/x86/cacheinfo.c b/sysdeps/x86/cacheinfo.c
index 7b8df45e3bb6eaa1..5ea4723ca69d7b62 100644
--- a/sysdeps/x86/cacheinfo.c
+++ b/sysdeps/x86/cacheinfo.c
@@ -32,6 +32,9 @@ __cache_sysconf (int name)
case _SC_LEVEL1_ICACHE_SIZE:
return cpu_features->level1_icache_size;
+ case _SC_LEVEL1_ICACHE_LINESIZE:
+ return cpu_features->level1_icache_linesize;
+
case _SC_LEVEL1_DCACHE_SIZE:
return cpu_features->level1_dcache_size;
diff --git a/sysdeps/x86/dl-cacheinfo.h b/sysdeps/x86/dl-cacheinfo.h
index 6f91651f0da1d46a..2ab3acd83e1cfd97 100644
--- a/sysdeps/x86/dl-cacheinfo.h
+++ b/sysdeps/x86/dl-cacheinfo.h
@@ -707,6 +707,7 @@ dl_init_cacheinfo (struct cpu_features *cpu_features)
long int core;
unsigned int threads = 0;
unsigned long int level1_icache_size = -1;
+ unsigned long int level1_icache_linesize = -1;
unsigned long int level1_dcache_size = -1;
unsigned long int level1_dcache_assoc = -1;
unsigned long int level1_dcache_linesize = -1;
@@ -726,6 +727,8 @@ dl_init_cacheinfo (struct cpu_features *cpu_features)
level1_icache_size
= handle_intel (_SC_LEVEL1_ICACHE_SIZE, cpu_features);
+ level1_icache_linesize
+ = handle_intel (_SC_LEVEL1_ICACHE_LINESIZE, cpu_features);
level1_dcache_size = data;
level1_dcache_assoc
= handle_intel (_SC_LEVEL1_DCACHE_ASSOC, cpu_features);
@@ -753,6 +756,7 @@ dl_init_cacheinfo (struct cpu_features *cpu_features)
shared = handle_zhaoxin (_SC_LEVEL3_CACHE_SIZE);
level1_icache_size = handle_zhaoxin (_SC_LEVEL1_ICACHE_SIZE);
+ level1_icache_linesize = handle_zhaoxin (_SC_LEVEL1_ICACHE_LINESIZE);
level1_dcache_size = data;
level1_dcache_assoc = handle_zhaoxin (_SC_LEVEL1_DCACHE_ASSOC);
level1_dcache_linesize = handle_zhaoxin (_SC_LEVEL1_DCACHE_LINESIZE);
@@ -772,6 +776,7 @@ dl_init_cacheinfo (struct cpu_features *cpu_features)
shared = handle_amd (_SC_LEVEL3_CACHE_SIZE);
level1_icache_size = handle_amd (_SC_LEVEL1_ICACHE_SIZE);
+ level1_icache_linesize = handle_amd (_SC_LEVEL1_ICACHE_LINESIZE);
level1_dcache_size = data;
level1_dcache_assoc = handle_amd (_SC_LEVEL1_DCACHE_ASSOC);
level1_dcache_linesize = handle_amd (_SC_LEVEL1_DCACHE_LINESIZE);
@@ -833,6 +838,7 @@ dl_init_cacheinfo (struct cpu_features *cpu_features)
}
cpu_features->level1_icache_size = level1_icache_size;
+ cpu_features->level1_icache_linesize = level1_icache_linesize;
cpu_features->level1_dcache_size = level1_dcache_size;
cpu_features->level1_dcache_assoc = level1_dcache_assoc;
cpu_features->level1_dcache_linesize = level1_dcache_linesize;
diff --git a/sysdeps/x86/dl-diagnostics-cpu.c b/sysdeps/x86/dl-diagnostics-cpu.c
index 55c6f35c7cabb4da..af8486470826426d 100644
--- a/sysdeps/x86/dl-diagnostics-cpu.c
+++ b/sysdeps/x86/dl-diagnostics-cpu.c
@@ -89,6 +89,8 @@ _dl_diagnostics_cpu (void)
cpu_features->rep_stosb_threshold);
print_cpu_features_value ("level1_icache_size",
cpu_features->level1_icache_size);
+ print_cpu_features_value ("level1_icache_linesize",
+ cpu_features->level1_icache_linesize);
print_cpu_features_value ("level1_dcache_size",
cpu_features->level1_dcache_size);
print_cpu_features_value ("level1_dcache_assoc",
diff --git a/sysdeps/x86/include/cpu-features.h b/sysdeps/x86/include/cpu-features.h
index 184dc93c699d9b91..04d8e5734eb53e2b 100644
--- a/sysdeps/x86/include/cpu-features.h
+++ b/sysdeps/x86/include/cpu-features.h
@@ -859,6 +859,8 @@ struct cpu_features
unsigned long int rep_stosb_threshold;
/* _SC_LEVEL1_ICACHE_SIZE. */
unsigned long int level1_icache_size;
+ /* _SC_LEVEL1_ICACHE_LINESIZE. */
+ unsigned long int level1_icache_linesize;
/* _SC_LEVEL1_DCACHE_SIZE. */
unsigned long int level1_dcache_size;
/* _SC_LEVEL1_DCACHE_ASSOC. */
diff --git a/sysdeps/x86/tst-sysconf-cache-linesize-static.c b/sysdeps/x86/tst-sysconf-cache-linesize-static.c
new file mode 100644
index 0000000000000000..152ae68821748b3d
--- /dev/null
+++ b/sysdeps/x86/tst-sysconf-cache-linesize-static.c
@@ -0,0 +1 @@
+#include "tst-sysconf-cache-linesize.c"
diff --git a/sysdeps/x86/tst-sysconf-cache-linesize.c b/sysdeps/x86/tst-sysconf-cache-linesize.c
new file mode 100644
index 0000000000000000..642dbde5d25b7c5e
--- /dev/null
+++ b/sysdeps/x86/tst-sysconf-cache-linesize.c
@@ -0,0 +1,57 @@
+/* Test system cache line sizes.
+ Copyright (C) 2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <array_length.h>
+
+static struct
+{
+ const char *name;
+ int _SC_val;
+} sc_options[] =
+ {
+#define N(name) { "_SC_"#name, _SC_##name }
+ N (LEVEL1_ICACHE_LINESIZE),
+ N (LEVEL1_DCACHE_LINESIZE),
+ N (LEVEL2_CACHE_LINESIZE)
+ };
+
+static int
+do_test (void)
+{
+ int result = EXIT_SUCCESS;
+
+ for (int i = 0; i < array_length (sc_options); ++i)
+ {
+ long int scret = sysconf (sc_options[i]._SC_val);
+ if (scret < 0)
+ {
+ printf ("sysconf (%s) returned < 0 (%ld)\n",
+ sc_options[i].name, scret);
+ result = EXIT_FAILURE;
+ }
+ else
+ printf ("sysconf (%s): %ld\n", sc_options[i].name, scret);
+ }
+
+ return result;
+}
+
+#include <support/test-driver.c>
Reference in New Issue View Git Blame Copy Permalink