Update of /cvsroot/linux-mips/linux/arch/mips64/kernel
In directory usw-pr-cvs1:/tmp/cvs-serv8552/arch/mips64/kernel
Added Files:
head.S pci-dma.c
Log Message:
Big overhaul of 64-bit kernel along the lines of what we already have for the 64-bit kernel just more radical.
--- NEW FILE: pci-dma.c ---
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2000 Ani Joshi <aj...@un...>
* Copyright (C) 2000 Ralf Baechle <ra...@gn...>
* swiped from i386, and cloned for MIPS by Geert, polished by Ralf.
*/
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/pci.h>
#include <asm/io.h>
#include <asm/addrspace.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);
#ifdef CONFIG_NONCOHERENT_IO
dma_cache_wback_inv((unsigned long) ret, size);
ret = KSEG1ADDR(ret);
#endif
*dma_handle = __pa(ret);
return ret;
}
return NULL;
}
void pci_free_consistent(struct pci_dev *hwdev, size_t size,
void *vaddr, dma_addr_t dma_handle)
{
free_pages((unsigned long) KSEG0ADDR(vaddr), get_order(size));
}
|
