1/*
 2 * This file is subject to the terms and conditions of the GNU General Public
 3 * License.  See the file COPYING in the main directory of this archive
 4 * for more details.
 5 */
 6
 7#include <linux/dma-map-ops.h>
 8#include <linux/kernel.h>
 9#include <asm/cacheflush.h>
10
11#ifndef CONFIG_COLDFIRE
12void arch_dma_prep_coherent(struct page *page, size_t size)
13{
14	cache_push(page_to_phys(page), size);
15}
16
17pgprot_t pgprot_dmacoherent(pgprot_t prot)
18{
19	if (CPU_IS_040_OR_060) {
20		pgprot_val(prot) &= ~_PAGE_CACHE040;
21		pgprot_val(prot) |= _PAGE_GLOBAL040 | _PAGE_NOCACHE_S;
22	} else {
23		pgprot_val(prot) |= _PAGE_NOCACHE030;
24	}
25	return prot;
26}
27#endif /* CONFIG_MMU && !CONFIG_COLDFIRE */
28
29void arch_sync_dma_for_device(phys_addr_t handle, size_t size,
30		enum dma_data_direction dir)
31{
32	switch (dir) {
33	case DMA_BIDIRECTIONAL:
34	case DMA_TO_DEVICE:
35		cache_push(handle, size);
36		break;
37	case DMA_FROM_DEVICE:
38		cache_clear(handle, size);
39		break;
40	default:
41		pr_err_ratelimited("dma_sync_single_for_device: unsupported dir %u\n",
42				   dir);
43		break;
44	}
45}

1#ifdef CONFIG_MMU
2#include "dma_mm.c"
3#else
4#include "dma_no.c"
5#endif