1 /* 1 /*
2 * This file is subject to the terms and condi 2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file COPYING in the main 3 * License. See the file COPYING in the main directory of this archive
4 * for more details. 4 * for more details.
5 */ 5 */
6 6
7 #include <linux/dma-map-ops.h> 7 #include <linux/dma-map-ops.h>
8 #include <linux/kernel.h> 8 #include <linux/kernel.h>
9 #include <asm/cacheflush.h> 9 #include <asm/cacheflush.h>
10 10
11 #ifndef CONFIG_COLDFIRE 11 #ifndef CONFIG_COLDFIRE
12 void arch_dma_prep_coherent(struct page *page, 12 void arch_dma_prep_coherent(struct page *page, size_t size)
13 { 13 {
14 cache_push(page_to_phys(page), size); 14 cache_push(page_to_phys(page), size);
15 } 15 }
16 16
17 pgprot_t pgprot_dmacoherent(pgprot_t prot) 17 pgprot_t pgprot_dmacoherent(pgprot_t prot)
18 { 18 {
19 if (CPU_IS_040_OR_060) { 19 if (CPU_IS_040_OR_060) {
20 pgprot_val(prot) &= ~_PAGE_CAC 20 pgprot_val(prot) &= ~_PAGE_CACHE040;
21 pgprot_val(prot) |= _PAGE_GLOB 21 pgprot_val(prot) |= _PAGE_GLOBAL040 | _PAGE_NOCACHE_S;
22 } else { 22 } else {
23 pgprot_val(prot) |= _PAGE_NOCA 23 pgprot_val(prot) |= _PAGE_NOCACHE030;
24 } 24 }
25 return prot; 25 return prot;
26 } 26 }
27 #endif /* CONFIG_MMU && !CONFIG_COLDFIRE */ 27 #endif /* CONFIG_MMU && !CONFIG_COLDFIRE */
28 28
29 void arch_sync_dma_for_device(phys_addr_t hand 29 void arch_sync_dma_for_device(phys_addr_t handle, size_t size,
30 enum dma_data_direction dir) 30 enum dma_data_direction dir)
31 { 31 {
32 switch (dir) { 32 switch (dir) {
33 case DMA_BIDIRECTIONAL: 33 case DMA_BIDIRECTIONAL:
34 case DMA_TO_DEVICE: 34 case DMA_TO_DEVICE:
35 cache_push(handle, size); 35 cache_push(handle, size);
36 break; 36 break;
37 case DMA_FROM_DEVICE: 37 case DMA_FROM_DEVICE:
38 cache_clear(handle, size); 38 cache_clear(handle, size);
39 break; 39 break;
40 default: 40 default:
41 pr_err_ratelimited("dma_sync_s 41 pr_err_ratelimited("dma_sync_single_for_device: unsupported dir %u\n",
42 dir); 42 dir);
43 break; 43 break;
44 } 44 }
45 } 45 }
46 46
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