diff options
Diffstat (limited to 'target/linux/ubicom32/files/arch/ubicom32/kernel/dma.c')
-rw-r--r-- | target/linux/ubicom32/files/arch/ubicom32/kernel/dma.c | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/kernel/dma.c b/target/linux/ubicom32/files/arch/ubicom32/kernel/dma.c deleted file mode 100644 index f61810532a..0000000000 --- a/target/linux/ubicom32/files/arch/ubicom32/kernel/dma.c +++ /dev/null @@ -1,60 +0,0 @@ -/* - * arch/ubicom32/kernel/dma.c - * Ubicom32 architecture dynamic DMA mapping support. - * - * (C) Copyright 2009, Ubicom, Inc. - * - * This file is part of the Ubicom32 Linux Kernel Port. - * - * The Ubicom32 Linux Kernel Port is free software: you can redistribute - * it and/or modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation, either version 2 of the - * License, or (at your option) any later version. - * - * The Ubicom32 Linux Kernel Port is distributed in the hope that it - * will be useful, but WITHOUT ANY WARRANTY; without even the implied - * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See - * the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with the Ubicom32 Linux Kernel Port. If not, - * see <http://www.gnu.org/licenses/>. - * - * Ubicom32 implementation derived from (with many thanks): - * arch/m68knommu - * arch/blackfin - * arch/parisc - * - * We never have any address translations to worry about, so this - * is just alloc/free. - */ - -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/string.h> -#include <linux/device.h> -#include <linux/io.h> - -void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, int gfp) -{ - void *ret; - /* ignore region specifiers */ - gfp &= ~(__GFP_DMA | __GFP_HIGHMEM); - - if (dev == NULL || (*dev->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_phys(ret); - } - return ret; -} - -void dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) -{ - free_pages((unsigned long)vaddr, get_order(size)); -} |