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| author | sam <sam@FreeBSD.org> | 2009-07-05 17:45:48 +0000 |
|---|---|---|
| committer | sam <sam@FreeBSD.org> | 2009-07-05 17:45:48 +0000 |
| commit | c67dff7aca2dbc37c9abe5f0d576016dd2b9905c (patch) | |
| tree | 5014c430476acd9a353d9342a22288dd1b848162 /sys/arm/include/param.h | |
| parent | eeddcf1cf56c015e07a4015b8058940ef0531643 (diff) | |
| download | FreeBSD-src-c67dff7aca2dbc37c9abe5f0d576016dd2b9905c.zip FreeBSD-src-c67dff7aca2dbc37c9abe5f0d576016dd2b9905c.tar.gz | |
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)
Diffstat (limited to 'sys/arm/include/param.h')
| -rw-r--r-- | sys/arm/include/param.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/arm/include/param.h b/sys/arm/include/param.h index 802390b..c680148 100644 --- a/sys/arm/include/param.h +++ b/sys/arm/include/param.h @@ -80,6 +80,13 @@ #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) ((((unsigned)(p)) & (sizeof(t)-1)) == 0) /* * CACHE_LINE_SIZE is the compile-time maximum cache line size for an |
