svn commit: r191278 - in head/sys: amd64/include arm/include
i386/include ia64/include mips/include powerpc/include
sparc64/include sun4v/include
Robert Watson
rwatson at FreeBSD.org
Sun Apr 19 21:26:38 UTC 2009
Author: rwatson
Date: Sun Apr 19 21:26:36 2009
New Revision: 191278
URL: http://svn.freebsd.org/changeset/base/191278
Log:
Add description and cautionary note regarding CACHE_LINE_SIZE.
MFC after: 2 weeks
Suggested by: alc
Modified:
head/sys/amd64/include/param.h
head/sys/arm/include/param.h
head/sys/i386/include/param.h
head/sys/ia64/include/param.h
head/sys/mips/include/param.h
head/sys/powerpc/include/param.h
head/sys/sparc64/include/param.h
head/sys/sun4v/include/param.h
Modified: head/sys/amd64/include/param.h
==============================================================================
--- head/sys/amd64/include/param.h Sun Apr 19 20:53:47 2009 (r191277)
+++ head/sys/amd64/include/param.h Sun Apr 19 21:26:36 2009 (r191278)
@@ -89,6 +89,10 @@
#define ALIGN(p) _ALIGN(p)
#define ALIGNED_POINTER(p,t) _ALIGNED_POINTER(p,t)
+/*
+ * CACHE_LINE_SIZE is the compile-time maximum cache line size for an
+ * architecture. It should be used with appropriate caution.
+ */
#ifndef CACHE_LINE_SHIFT
#define CACHE_LINE_SHIFT 6
#endif
Modified: head/sys/arm/include/param.h
==============================================================================
--- head/sys/arm/include/param.h Sun Apr 19 20:53:47 2009 (r191277)
+++ head/sys/arm/include/param.h Sun Apr 19 21:26:36 2009 (r191278)
@@ -81,6 +81,10 @@
#define ALIGNBYTES _ALIGNBYTES
#define ALIGN(p) _ALIGN(p)
+/*
+ * CACHE_LINE_SIZE is the compile-time maximum cache line size for an
+ * architecture. It should be used with appropriate caution.
+ */
#ifndef CACHE_LINE_SHIFT
#define CACHE_LINE_SHIFT 6
#endif
Modified: head/sys/i386/include/param.h
==============================================================================
--- head/sys/i386/include/param.h Sun Apr 19 20:53:47 2009 (r191277)
+++ head/sys/i386/include/param.h Sun Apr 19 21:26:36 2009 (r191278)
@@ -74,6 +74,10 @@
#define ALIGNBYTES _ALIGNBYTES
#define ALIGN(p) _ALIGN(p)
+/*
+ * CACHE_LINE_SIZE is the compile-time maximum cache line size for an
+ * architecture. It should be used with appropriate caution.
+ */
#ifndef CACHE_LINE_SHIFT
#define CACHE_LINE_SHIFT 6
#endif
Modified: head/sys/ia64/include/param.h
==============================================================================
--- head/sys/ia64/include/param.h Sun Apr 19 20:53:47 2009 (r191277)
+++ head/sys/ia64/include/param.h Sun Apr 19 21:26:36 2009 (r191278)
@@ -99,6 +99,10 @@
#define ALIGN(p) _ALIGN(p)
#define ALIGNED_POINTER(p,t) _ALIGNED_POINTER(p,t)
+/*
+ * CACHE_LINE_SIZE is the compile-time maximum cache line size for an
+ * architecture. It should be used with appropriate caution.
+ */
#ifndef CACHE_LINE_SHIFT
#define CACHE_LINE_SHIFT 6
#endif
Modified: head/sys/mips/include/param.h
==============================================================================
--- head/sys/mips/include/param.h Sun Apr 19 20:53:47 2009 (r191277)
+++ head/sys/mips/include/param.h Sun Apr 19 21:26:36 2009 (r191278)
@@ -89,6 +89,10 @@
#define ALIGNBYTES _ALIGNBYTES
#define ALIGN(p) _ALIGN(p)
+/*
+ * CACHE_LINE_SIZE is the compile-time maximum cache line size for an
+ * architecture. It should be used with appropriate caution.
+ */
#ifndef CACHE_LINE_SHIFT
#define CACHE_LINE_SHIFT 6
#endif
Modified: head/sys/powerpc/include/param.h
==============================================================================
--- head/sys/powerpc/include/param.h Sun Apr 19 20:53:47 2009 (r191277)
+++ head/sys/powerpc/include/param.h Sun Apr 19 21:26:36 2009 (r191278)
@@ -79,6 +79,10 @@
#define ALIGNBYTES _ALIGNBYTES
#define ALIGN(p) _ALIGN(p)
+/*
+ * CACHE_LINE_SIZE is the compile-time maximum cache line size for an
+ * architecture. It should be used with appropriate caution.
+ */
#ifndef CACHE_LINE_SHIFT
#define CACHE_LINE_SHIFT 7
#endif
Modified: head/sys/sparc64/include/param.h
==============================================================================
--- head/sys/sparc64/include/param.h Sun Apr 19 20:53:47 2009 (r191277)
+++ head/sys/sparc64/include/param.h Sun Apr 19 21:26:36 2009 (r191278)
@@ -71,6 +71,10 @@
#define ALIGNBYTES _ALIGNBYTES
#define ALIGN(p) _ALIGN(p)
+/*
+ * CACHE_LINE_SIZE is the compile-time maximum cache line size for an
+ * architecture. It should be used with appropriate caution.
+ */
#ifndef CACHE_LINE_SHIFT
#define CACHE_LINE_SHIFT 6
#endif
Modified: head/sys/sun4v/include/param.h
==============================================================================
--- head/sys/sun4v/include/param.h Sun Apr 19 20:53:47 2009 (r191277)
+++ head/sys/sun4v/include/param.h Sun Apr 19 21:26:36 2009 (r191278)
@@ -71,6 +71,10 @@
#define ALIGNBYTES _ALIGNBYTES
#define ALIGN(p) _ALIGN(p)
+/*
+ * CACHE_LINE_SIZE is the compile-time maximum cache line size for an
+ * architecture. It should be used with appropriate caution.
+ */
#ifndef CACHE_LINE_SHIFT
#define CACHE_LINE_SHIFT 6
#endif
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