Architectures that handle DMA-non-coherent memory need to set
ARCH_DMA_MINALIGN to make sure that kmalloc'ed buffer is DMA-safe: the
buffer doesn't share a cache with the others.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
#define SMP_CACHE_BYTES L1_CACHE_BYTES
#define SMP_CACHE_BYTES L1_CACHE_BYTES
+#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
+
#define __read_mostly __attribute__((__section__(".data..read_mostly")))
void parisc_cache_init(void); /* initializes cache-flushing */
#define __read_mostly __attribute__((__section__(".data..read_mostly")))
void parisc_cache_init(void); /* initializes cache-flushing */