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microblaze: Preliminary support for dma drivers

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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: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek 2010-02-09 09:25:08 +01:00
commit dcbae4be90
1 changed files with 3 additions and 6 deletions
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9
arch/microblaze/kernel/dma.c
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@ -20,18 +20,15 @@
* can set archdata.dma_data to an unsigned long holding the offset. By * can set archdata.dma_data to an unsigned long holding the offset. By
* default the offset is PCI_DRAM_OFFSET. * default the offset is PCI_DRAM_OFFSET.
*/ */
static inline void __dma_sync_page(unsigned long paddr, unsigned long offset,
static inline void __dma_sync_page(void *paddr, unsigned long offset,
size_t size, enum dma_data_direction direction) size_t size, enum dma_data_direction direction)
{ {
unsigned long start = (unsigned long)paddr;
switch (direction) { switch (direction) {
case DMA_TO_DEVICE: case DMA_TO_DEVICE:
flush_dcache_range(start + offset, start + offset + size); flush_dcache_range(paddr + offset, paddr + offset + size);
break; break;
case DMA_FROM_DEVICE: case DMA_FROM_DEVICE:
invalidate_dcache_range(start + offset, start + offset + size); invalidate_dcache_range(paddr + offset, paddr + offset + size);
break; break;
default: default:
BUG(); BUG();