Commit de925d9d authored by Michal Simek's avatar Michal Simek

microblaze: Fix kmalloc alignment on non-coherent DMA platforms

Based on PowerPC patche 52142e75

PowerPC description:
On platforms doing non-coherent DMA (4xx, 8xx, ...), it's important
that the kmalloc minimum alignment is set to the cache line size, to
avoid sharing cache lines between different objects, so that DMA to
one of the objects doesn't corrupt the other.
Signed-off-by: default avatarMichal Simek <>
parent c17e1a1c
......@@ -31,6 +31,9 @@
#ifndef __ASSEMBLY__
/* MS be sure that SLAB allocates aligned objects */
#define PAGE_UP(addr) (((addr)+((PAGE_SIZE)-1))&(~((PAGE_SIZE)-1)))
#define PAGE_DOWN(addr) ((addr)&(~((PAGE_SIZE)-1)))
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