Joerg Roedel | f2f45e5 | 2009-01-09 12:19:52 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 Advanced Micro Devices, Inc. |
| 3 | * |
| 4 | * Author: Joerg Roedel <joerg.roedel@amd.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License version 2 as published |
| 8 | * by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | */ |
| 19 | |
| 20 | #ifndef __DMA_DEBUG_H |
| 21 | #define __DMA_DEBUG_H |
| 22 | |
Joerg Roedel | 6bf0787 | 2009-01-09 12:54:42 +0100 | [diff] [blame] | 23 | #include <linux/types.h> |
| 24 | |
Joerg Roedel | f2f45e5 | 2009-01-09 12:19:52 +0100 | [diff] [blame] | 25 | struct device; |
Joerg Roedel | 972aa45 | 2009-01-09 14:19:54 +0100 | [diff] [blame^] | 26 | struct scatterlist; |
Joerg Roedel | f2f45e5 | 2009-01-09 12:19:52 +0100 | [diff] [blame] | 27 | |
Joerg Roedel | 6bf0787 | 2009-01-09 12:54:42 +0100 | [diff] [blame] | 28 | #ifdef CONFIG_DMA_API_DEBUG |
| 29 | |
| 30 | extern void dma_debug_init(u32 num_entries); |
| 31 | |
Joerg Roedel | f62bc98 | 2009-01-09 14:14:49 +0100 | [diff] [blame] | 32 | extern void debug_dma_map_page(struct device *dev, struct page *page, |
| 33 | size_t offset, size_t size, |
| 34 | int direction, dma_addr_t dma_addr, |
| 35 | bool map_single); |
| 36 | |
| 37 | extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr, |
| 38 | size_t size, int direction, bool map_single); |
| 39 | |
Joerg Roedel | 972aa45 | 2009-01-09 14:19:54 +0100 | [diff] [blame^] | 40 | extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg, |
| 41 | int nents, int mapped_ents, int direction); |
| 42 | |
| 43 | extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, |
| 44 | int nelems, int dir); |
Joerg Roedel | f62bc98 | 2009-01-09 14:14:49 +0100 | [diff] [blame] | 45 | |
Joerg Roedel | 6bf0787 | 2009-01-09 12:54:42 +0100 | [diff] [blame] | 46 | #else /* CONFIG_DMA_API_DEBUG */ |
| 47 | |
| 48 | static inline void dma_debug_init(u32 num_entries) |
| 49 | { |
| 50 | } |
| 51 | |
Joerg Roedel | f62bc98 | 2009-01-09 14:14:49 +0100 | [diff] [blame] | 52 | static inline void debug_dma_map_page(struct device *dev, struct page *page, |
| 53 | size_t offset, size_t size, |
| 54 | int direction, dma_addr_t dma_addr, |
| 55 | bool map_single) |
| 56 | { |
| 57 | } |
| 58 | |
| 59 | static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr, |
| 60 | size_t size, int direction, |
| 61 | bool map_single) |
| 62 | { |
| 63 | } |
| 64 | |
Joerg Roedel | 972aa45 | 2009-01-09 14:19:54 +0100 | [diff] [blame^] | 65 | static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg, |
| 66 | int nents, int mapped_ents, int direction) |
| 67 | { |
| 68 | } |
| 69 | |
| 70 | static inline void debug_dma_unmap_sg(struct device *dev, |
| 71 | struct scatterlist *sglist, |
| 72 | int nelems, int dir) |
| 73 | { |
| 74 | } |
Joerg Roedel | f62bc98 | 2009-01-09 14:14:49 +0100 | [diff] [blame] | 75 | |
Joerg Roedel | 6bf0787 | 2009-01-09 12:54:42 +0100 | [diff] [blame] | 76 | #endif /* CONFIG_DMA_API_DEBUG */ |
| 77 | |
Joerg Roedel | f2f45e5 | 2009-01-09 12:19:52 +0100 | [diff] [blame] | 78 | #endif /* __DMA_DEBUG_H */ |