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Commit dcbae4be authored by Michal Simek's avatar Michal Simek
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microblaze: Preliminary support for dma drivers 



I found several problems for ll_temac driver and on system with WB.
This early fix should fix it. I will clean this patch before I will add
it to mainline

Signed-off-by: default avatarMichal Simek <monstr@monstr.eu>
parent 4c912c1a

arch/microblaze/kernel/dma.c

+3 −6
Original line number Diff line number Diff line
@@ -20,18 +20,15 @@ 
 * can set archdata.dma_data to an unsigned long holding the offset. By

 * default the offset is PCI_DRAM_OFFSET.

 */



static inline void __dma_sync_page(void *paddr, unsigned long offset,

static inline void __dma_sync_page(unsigned long paddr, unsigned long offset,

				size_t size, enum dma_data_direction direction)

{

	unsigned long start = (unsigned long)paddr;



	switch (direction) {

	case DMA_TO_DEVICE:

		flush_dcache_range(start + offset, start + offset + size);

		flush_dcache_range(paddr + offset, paddr + offset + size);

		break;

	case DMA_FROM_DEVICE:

		invalidate_dcache_range(start + offset, start + offset + size);

		invalidate_dcache_range(paddr + offset, paddr + offset + size);

		break;

	default:

		BUG();