patch-2.4.22 linux-2.4.22/arch/mips/hp-lj/pci-dma.c
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- Lines: 53
- Date:
1969-12-31 16:00:00.000000000 -0800
- Orig file:
linux-2.4.21/arch/mips/hp-lj/pci-dma.c
- Orig date:
2002-08-02 17:39:43.000000000 -0700
diff -urN linux-2.4.21/arch/mips/hp-lj/pci-dma.c linux-2.4.22/arch/mips/hp-lj/pci-dma.c
@@ -1,52 +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>
-
-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) {
- memset(ret, 0, size);
- *dma_handle = virt_to_bus(ret);
-
-
- // REVISIT this needs reviewal as mentioned in bug report
- // currently we bump kseg0 allocates to kseg1 uncacheable space
-
- if ((((unsigned int) ret) & 0xe0000000) == 0x80000000) {
- //flush the cache to eliminate coherency problems
- // and assure dirty lines won't later get written over any dma, etc.
- flush_cache_all();
- ret = (void*)((unsigned int)ret | 0x20000000);
- }
-
-
- }
- return ret;
-}
-
-
-void pci_free_consistent(struct pci_dev *hwdev, size_t size,
- void *vaddr, dma_addr_t dma_handle)
-{
- free_pages((unsigned long)vaddr, get_order(size));
-}
-
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