dma-mapping.c (14451467014b4c8aff6570b44b6d0ee68cd49bc0) dma-mapping.c (249baa54790171438524ba97e8e0485dd6aa2762)
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * linux/arch/arm/mm/dma-mapping.c
4 *
5 * Copyright (C) 2000-2004 Russell King
6 *
7 * DMA uncached mapping support.
8 */
9#include <linux/module.h>
10#include <linux/mm.h>
11#include <linux/genalloc.h>
12#include <linux/gfp.h>
13#include <linux/errno.h>
14#include <linux/list.h>
15#include <linux/init.h>
16#include <linux/device.h>
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * linux/arch/arm/mm/dma-mapping.c
4 *
5 * Copyright (C) 2000-2004 Russell King
6 *
7 * DMA uncached mapping support.
8 */
9#include <linux/module.h>
10#include <linux/mm.h>
11#include <linux/genalloc.h>
12#include <linux/gfp.h>
13#include <linux/errno.h>
14#include <linux/list.h>
15#include <linux/init.h>
16#include <linux/device.h>
17#include <linux/dma-direct.h>
17#include <linux/dma-mapping.h>
18#include <linux/dma-noncoherent.h>
19#include <linux/dma-contiguous.h>
20#include <linux/highmem.h>
21#include <linux/memblock.h>
22#include <linux/slab.h>
23#include <linux/iommu.h>
24#include <linux/io.h>

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187 .map_sg = arm_dma_map_sg,
188 .unmap_sg = arm_dma_unmap_sg,
189 .map_resource = dma_direct_map_resource,
190 .sync_single_for_cpu = arm_dma_sync_single_for_cpu,
191 .sync_single_for_device = arm_dma_sync_single_for_device,
192 .sync_sg_for_cpu = arm_dma_sync_sg_for_cpu,
193 .sync_sg_for_device = arm_dma_sync_sg_for_device,
194 .dma_supported = arm_dma_supported,
18#include <linux/dma-mapping.h>
19#include <linux/dma-noncoherent.h>
20#include <linux/dma-contiguous.h>
21#include <linux/highmem.h>
22#include <linux/memblock.h>
23#include <linux/slab.h>
24#include <linux/iommu.h>
25#include <linux/io.h>

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188 .map_sg = arm_dma_map_sg,
189 .unmap_sg = arm_dma_unmap_sg,
190 .map_resource = dma_direct_map_resource,
191 .sync_single_for_cpu = arm_dma_sync_single_for_cpu,
192 .sync_single_for_device = arm_dma_sync_single_for_device,
193 .sync_sg_for_cpu = arm_dma_sync_sg_for_cpu,
194 .sync_sg_for_device = arm_dma_sync_sg_for_device,
195 .dma_supported = arm_dma_supported,
196 .get_required_mask = dma_direct_get_required_mask,
195};
196EXPORT_SYMBOL(arm_dma_ops);
197
198static void *arm_coherent_dma_alloc(struct device *dev, size_t size,
199 dma_addr_t *handle, gfp_t gfp, unsigned long attrs);
200static void arm_coherent_dma_free(struct device *dev, size_t size, void *cpu_addr,
201 dma_addr_t handle, unsigned long attrs);
202static int arm_coherent_dma_mmap(struct device *dev, struct vm_area_struct *vma,

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207 .alloc = arm_coherent_dma_alloc,
208 .free = arm_coherent_dma_free,
209 .mmap = arm_coherent_dma_mmap,
210 .get_sgtable = arm_dma_get_sgtable,
211 .map_page = arm_coherent_dma_map_page,
212 .map_sg = arm_dma_map_sg,
213 .map_resource = dma_direct_map_resource,
214 .dma_supported = arm_dma_supported,
197};
198EXPORT_SYMBOL(arm_dma_ops);
199
200static void *arm_coherent_dma_alloc(struct device *dev, size_t size,
201 dma_addr_t *handle, gfp_t gfp, unsigned long attrs);
202static void arm_coherent_dma_free(struct device *dev, size_t size, void *cpu_addr,
203 dma_addr_t handle, unsigned long attrs);
204static int arm_coherent_dma_mmap(struct device *dev, struct vm_area_struct *vma,

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209 .alloc = arm_coherent_dma_alloc,
210 .free = arm_coherent_dma_free,
211 .mmap = arm_coherent_dma_mmap,
212 .get_sgtable = arm_dma_get_sgtable,
213 .map_page = arm_coherent_dma_map_page,
214 .map_sg = arm_dma_map_sg,
215 .map_resource = dma_direct_map_resource,
216 .dma_supported = arm_dma_supported,
217 .get_required_mask = dma_direct_get_required_mask,
215};
216EXPORT_SYMBOL(arm_coherent_dma_ops);
217
218static int __dma_supported(struct device *dev, u64 mask, bool warn)
219{
220 unsigned long max_dma_pfn = min(max_pfn, arm_dma_pfn_limit);
221
222 /*

--- 2185 unchanged lines hidden --- 		218};
219EXPORT_SYMBOL(arm_coherent_dma_ops);
220
221static int __dma_supported(struct device *dev, u64 mask, bool warn)
222{
223 unsigned long max_dma_pfn = min(max_pfn, arm_dma_pfn_limit);
224
225 /*

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