diff options
| author | rwatson <rwatson@FreeBSD.org> | 2009-04-19 21:26:36 +0000 |
|---|---|---|
| committer | rwatson <rwatson@FreeBSD.org> | 2009-04-19 21:26:36 +0000 |
| commit | ab17fac487a2edc11c9643eaab1c3c4e1dd5589b (patch) | |
| tree | e3980f5305201bf6d9d964102f24c655738fbb51 | |
| parent | e215ab3b02bae1355e92de58c118eb0032066bf1 (diff) | |
| download | FreeBSD-src-ab17fac487a2edc11c9643eaab1c3c4e1dd5589b.zip FreeBSD-src-ab17fac487a2edc11c9643eaab1c3c4e1dd5589b.tar.gz | |
Add description and cautionary note regarding CACHE_LINE_SIZE.
MFC after: 2 weeks
Suggested by: alc
| -rw-r--r-- | sys/amd64/include/param.h | 4 | ||||
| -rw-r--r-- | sys/arm/include/param.h | 4 | ||||
| -rw-r--r-- | sys/i386/include/param.h | 4 | ||||
| -rw-r--r-- | sys/ia64/include/param.h | 4 | ||||
| -rw-r--r-- | sys/mips/include/param.h | 4 | ||||
| -rw-r--r-- | sys/powerpc/include/param.h | 4 | ||||
| -rw-r--r-- | sys/sparc64/include/param.h | 4 | ||||
| -rw-r--r-- | sys/sun4v/include/param.h | 4 |
8 files changed, 32 insertions, 0 deletions
diff --git a/sys/amd64/include/param.h b/sys/amd64/include/param.h index 7cf1286..16c30ad 100644 --- a/sys/amd64/include/param.h +++ b/sys/amd64/include/param.h @@ -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 diff --git a/sys/arm/include/param.h b/sys/arm/include/param.h index 6e3ee59..4a83e27 100644 --- a/sys/arm/include/param.h +++ b/sys/arm/include/param.h @@ -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 diff --git a/sys/i386/include/param.h b/sys/i386/include/param.h index d9a3cda..abf855d 100644 --- a/sys/i386/include/param.h +++ b/sys/i386/include/param.h @@ -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 diff --git a/sys/ia64/include/param.h b/sys/ia64/include/param.h index f9a9c4a..4130ec4 100644 --- a/sys/ia64/include/param.h +++ b/sys/ia64/include/param.h @@ -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 diff --git a/sys/mips/include/param.h b/sys/mips/include/param.h index 55f877f..af1e06f 100644 --- a/sys/mips/include/param.h +++ b/sys/mips/include/param.h @@ -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 diff --git a/sys/powerpc/include/param.h b/sys/powerpc/include/param.h index 7dddb30..cab873e 100644 --- a/sys/powerpc/include/param.h +++ b/sys/powerpc/include/param.h @@ -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 diff --git a/sys/sparc64/include/param.h b/sys/sparc64/include/param.h index e8f783f..b909971 100644 --- a/sys/sparc64/include/param.h +++ b/sys/sparc64/include/param.h @@ -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 diff --git a/sys/sun4v/include/param.h b/sys/sun4v/include/param.h index 4d7b42e..aca3c37 100644 --- a/sys/sun4v/include/param.h +++ b/sys/sun4v/include/param.h @@ -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 |
