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mempool: make alignment/rounding 64-bit compatible

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Minimum alignment and rounding must be done on a word boundary. Let's
replace _ALIGN4() with WB_UP() which is equivalent on 32-bit targets,
and 64-bit aware.

Also enforce a minimal alignment on the memory pool. This is making
a difference mostly on64-bit targets where the widely used 4-byte
alignment is not sufficient.

The _ALIGN4() macro has no users left so it is removed.

Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
This commit is contained in:
Nicolas Pitre 2019-06-26 11:32:58 -04:00 • committed by Andrew Boie
commit cf974371fb
5 changed files with 9 additions and 11 deletions
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2
include/sys/mempool_base.h
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@ -36,8 +36,6 @@ struct sys_mem_pool_base {
u8_t flags;
};
#define _ALIGN4(n) ((((n)+3)/4)*4)
#define Z_MPOOL_HAVE_LVL(maxsz, minsz, l) (((maxsz) >> (2*(l))) \
>= (minsz) ? 1 : 0)