diff options
Diffstat (limited to 'arch/mips/netlogic/common/nlm-dma.c')
| -rw-r--r-- | arch/mips/netlogic/common/nlm-dma.c | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/arch/mips/netlogic/common/nlm-dma.c b/arch/mips/netlogic/common/nlm-dma.c deleted file mode 100644 index 0ec9d9da6d51..000000000000 --- a/arch/mips/netlogic/common/nlm-dma.c +++ /dev/null @@ -1,97 +0,0 @@ -/* -* Copyright (C) 2003-2013 Broadcom Corporation -* All Rights Reserved - * - * This software is available to you under a choice of one of two - * licenses. You may choose to be licensed under the terms of the GNU - * General Public License (GPL) Version 2, available from the file - * COPYING in the main directory of this source tree, or the Broadcom - * license below: - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE - * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN - * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -#include <linux/dma-mapping.h> -#include <linux/scatterlist.h> -#include <linux/bootmem.h> -#include <linux/export.h> -#include <linux/swiotlb.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/mm.h> - -#include <asm/bootinfo.h> - -static char *nlm_swiotlb; - -static void *nlm_dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs) -{ - /* ignore region specifiers */ - gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM); - -#ifdef CONFIG_ZONE_DMA32 - if (dev->coherent_dma_mask <= DMA_BIT_MASK(32)) - gfp |= __GFP_DMA32; -#endif - - /* Don't invoke OOM killer */ - gfp |= __GFP_NORETRY; - - return swiotlb_alloc_coherent(dev, size, dma_handle, gfp); -} - -static void nlm_dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle, unsigned long attrs) -{ - swiotlb_free_coherent(dev, size, vaddr, dma_handle); -} - -const struct dma_map_ops nlm_swiotlb_dma_ops = { - .alloc = nlm_dma_alloc_coherent, - .free = nlm_dma_free_coherent, - .map_page = swiotlb_map_page, - .unmap_page = swiotlb_unmap_page, - .map_sg = swiotlb_map_sg_attrs, - .unmap_sg = swiotlb_unmap_sg_attrs, - .sync_single_for_cpu = swiotlb_sync_single_for_cpu, - .sync_single_for_device = swiotlb_sync_single_for_device, - .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu, - .sync_sg_for_device = swiotlb_sync_sg_for_device, - .mapping_error = swiotlb_dma_mapping_error, - .dma_supported = swiotlb_dma_supported -}; - -void __init plat_swiotlb_setup(void) -{ - size_t swiotlbsize; - unsigned long swiotlb_nslabs; - - swiotlbsize = 1 << 20; /* 1 MB for now */ - swiotlb_nslabs = swiotlbsize >> IO_TLB_SHIFT; - swiotlb_nslabs = ALIGN(swiotlb_nslabs, IO_TLB_SEGSIZE); - swiotlbsize = swiotlb_nslabs << IO_TLB_SHIFT; - - nlm_swiotlb = alloc_bootmem_low_pages(swiotlbsize); - swiotlb_init_with_tbl(nlm_swiotlb, swiotlb_nslabs, 1); -} |