dma-mapping: parisc: set ARCH_DMA_MINALIGN
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>
This commit is contained in:
Родитель
4565f0170d
Коммит
7896bfa451
|
@ -28,6 +28,8 @@
|
|||
|
||||
#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 */
|
||||
|
|
Загрузка…
Ссылка в новой задаче