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IB/amso1100: Use dma_alloc_coherent() instead of kmalloc/dma_map_single

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The Ammasso driver needs to use dma_alloc_coherent() for
allocating memory that will be used by the HW for dma.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Steve Wise
2006-10-27 17:28:35 -05:00
committed by Roland Dreier
parent 04d03bc576
commit 8de94ce19d
3 changed files with 32 additions and 49 deletions
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13
drivers/infiniband/hw/amso1100/c2_alloc.c
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@@ -42,13 +42,14 @@ static int c2_alloc_mqsp_chunk(struct c2_dev *c2dev, gfp_t gfp_mask,
{
int i;
struct sp_chunk *new_head;
dma_addr_t dma_addr;
new_head = (struct sp_chunk *) __get_free_page(gfp_mask);
new_head = dma_alloc_coherent(&c2dev->pcidev->dev, PAGE_SIZE,
&dma_addr, gfp_mask);
if (new_head == NULL)
return -ENOMEM;
new_head->dma_addr = dma_map_single(c2dev->ibdev.dma_device, new_head,
PAGE_SIZE, DMA_FROM_DEVICE);
new_head->dma_addr = dma_addr;
pci_unmap_addr_set(new_head, mapping, new_head->dma_addr);
new_head->next = NULL;
@@ -80,10 +81,8 @@ void c2_free_mqsp_pool(struct c2_dev *c2dev, struct sp_chunk *root)
while (root) {
next = root->next;
dma_unmap_single(c2dev->ibdev.dma_device,
pci_unmap_addr(root, mapping), PAGE_SIZE,
DMA_FROM_DEVICE);
__free_page((struct page *) root);
dma_free_coherent(&c2dev->pcidev->dev, PAGE_SIZE, root,
pci_unmap_addr(root, mapping));
root = next;
}
}