diff options
Diffstat (limited to 'arch/mips/galileo-boards/ev96100/pci-dma.c')
-rw-r--r-- | arch/mips/galileo-boards/ev96100/pci-dma.c | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/arch/mips/galileo-boards/ev96100/pci-dma.c b/arch/mips/galileo-boards/ev96100/pci-dma.c deleted file mode 100644 index b338b286a..000000000 --- a/arch/mips/galileo-boards/ev96100/pci-dma.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (C) 2000 Ani Joshi <ajoshi@unixbox.com> - * - * - * Dynamic DMA mapping support. - * - * swiped from i386, and cloned for MIPS by Geert. - * - */ - -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/string.h> -#include <linux/pci.h> -#include <asm/io.h> - -/* - * [jsun] We want to return non-cached area so that data can be consistent - * Apparently on x86, this is not an issue because cache is automatically - * invalidated. - * - * To make we are doing the right thing, I add some extra debug macros. - */ - -void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size, - dma_addr_t *dma_handle) -{ - void *ret; - int gfp = GFP_ATOMIC; - - if (hwdev == NULL || hwdev->dma_mask != 0xffffffff) - gfp |= GFP_DMA; - ret = (void *)__get_free_pages(gfp, get_order(size)); - - if (ret != NULL) { - dma_cache_inv((unsigned long)ret, size); - *dma_handle = virt_to_bus(ret); - } - ret = (void*) ((unsigned long)ret | 0xA0000000); - - return ret; -} - -void pci_free_consistent(struct pci_dev *hwdev, size_t size, - void *vaddr, dma_addr_t dma_handle) -{ - vaddr = (void*) ((unsigned long)vaddr & ~0xA0000000); - free_pages((unsigned long)vaddr, get_order(size)); -} |