Module Name: src
Committed By: riastradh
Date: Sun Dec 19 01:18:39 UTC 2021
Modified Files:
src/sys/external/bsd/drm2/include/asm: cpufeature.h
Log Message:
Define x86 static_cpu_has(X86_FEATURE_CLFLUSH), clflush.
To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 src/sys/external/bsd/drm2/include/asm/cpufeature.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/external/bsd/drm2/include/asm/cpufeature.h
diff -u src/sys/external/bsd/drm2/include/asm/cpufeature.h:1.5 src/sys/external/bsd/drm2/include/asm/cpufeature.h:1.6
--- src/sys/external/bsd/drm2/include/asm/cpufeature.h:1.5 Sat Sep 5 07:45:44 2020
+++ src/sys/external/bsd/drm2/include/asm/cpufeature.h Sun Dec 19 01:18:39 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: cpufeature.h,v 1.5 2020/09/05 07:45:44 maxv Exp $ */
+/* $NetBSD: cpufeature.h,v 1.6 2021/12/19 01:18:39 riastradh Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -39,12 +39,31 @@
#define cpu_has_clflush ((cpu_info_primary.ci_feat_val[0] & CPUID_CLFSH) != 0)
#define cpu_has_pat ((cpu_info_primary.ci_feat_val[0] & CPUID_PAT) != 0)
+#define X86_FEATURE_CLFLUSH 0
+
+static inline bool
+static_cpu_has(int feature)
+{
+ switch (feature) {
+ case X86_FEATURE_CLFLUSH:
+ return cpu_has_clflush;
+ default:
+ return false;
+ }
+}
+
static inline size_t
cache_line_size(void)
{
return cpu_info_primary.ci_cflush_lsize;
}
+static inline void
+clflush(const void *p)
+{
+ asm volatile ("clflush %0" : : "m" (*(const char *)p));
+}
+
#endif /* x86 */
#endif /* _LINUX_ASM_CPUFEATURE_H_ */
