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author | Sam Leffler <sam@FreeBSD.org> | 2009-07-05 17:45:48 +0000 |
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committer | Sam Leffler <sam@FreeBSD.org> | 2009-07-05 17:45:48 +0000 |
commit | 8c393fd1f0cc514a007104469b11eaeeefb829b6 (patch) | |
tree | 5014c430476acd9a353d9342a22288dd1b848162 /sys/sparc64/include/param.h | |
parent | 559bfa18dce5da2a1ffd664bc16e2c4a6e49d8fc (diff) | |
download | src-8c393fd1f0cc514a007104469b11eaeeefb829b6.tar.gz src-8c393fd1f0cc514a007104469b11eaeeefb829b6.zip |
Cleanup ALIGNED_POINTER:
o add to platforms where it was missing (arm, i386, powerpc, sparc64, sun4v)
o define as "1" on amd64 and i386 where there is no restriction
o make the type returned consistent with ALIGN
o remove _ALIGNED_POINTER
o make associated comments consistent
Reviewed by: bde, imp, marcel
Approved by: re (kensmith)
Notes
Notes:
svn path=/head/; revision=195376
Diffstat (limited to 'sys/sparc64/include/param.h')
-rw-r--r-- | sys/sparc64/include/param.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/sparc64/include/param.h b/sys/sparc64/include/param.h index f09a6cda5030..ebd7f0d1128e 100644 --- a/sys/sparc64/include/param.h +++ b/sys/sparc64/include/param.h @@ -70,6 +70,13 @@ #define ALIGNBYTES _ALIGNBYTES #define ALIGN(p) _ALIGN(p) +/* + * ALIGNED_POINTER is a boolean macro that checks whether an address + * is valid to fetch data elements of type t from on this architecture. + * This does not reflect the optimal alignment, just the possibility + * (within reasonable limits). + */ +#define ALIGNED_POINTER(p, t) ((((u_long)(p)) & (sizeof (t) - 1)) == 0) /* * CACHE_LINE_SIZE is the compile-time maximum cache line size for an |