diff options
Diffstat (limited to 'include/linux/cb710.h')
| -rw-r--r-- | include/linux/cb710.h | 29 |
1 files changed, 3 insertions, 26 deletions
diff --git a/include/linux/cb710.h b/include/linux/cb710.h index 63bc9a4d2926..8cc10411bab2 100644 --- a/include/linux/cb710.h +++ b/include/linux/cb710.h | |||
| @@ -140,29 +140,6 @@ void cb710_dump_regs(struct cb710_chip *chip, unsigned dump); | |||
| 140 | #include <linux/highmem.h> | 140 | #include <linux/highmem.h> |
| 141 | #include <linux/scatterlist.h> | 141 | #include <linux/scatterlist.h> |
| 142 | 142 | ||
| 143 | /** | ||
| 144 | * cb710_sg_miter_stop_writing - stop mapping iteration after writing | ||
| 145 | * @miter: sg mapping iter to be stopped | ||
| 146 | * | ||
| 147 | * Description: | ||
| 148 | * Stops mapping iterator @miter. @miter should have been started | ||
| 149 | * started using sg_miter_start(). A stopped iteration can be | ||
| 150 | * resumed by calling sg_miter_next() on it. This is useful when | ||
| 151 | * resources (kmap) need to be released during iteration. | ||
| 152 | * | ||
| 153 | * This is a convenience wrapper that will be optimized out for arches | ||
| 154 | * that don't need flush_kernel_dcache_page(). | ||
| 155 | * | ||
| 156 | * Context: | ||
| 157 | * IRQ disabled if the SG_MITER_ATOMIC is set. Don't care otherwise. | ||
| 158 | */ | ||
| 159 | static inline void cb710_sg_miter_stop_writing(struct sg_mapping_iter *miter) | ||
| 160 | { | ||
| 161 | if (miter->page) | ||
| 162 | flush_kernel_dcache_page(miter->page); | ||
| 163 | sg_miter_stop(miter); | ||
| 164 | } | ||
| 165 | |||
| 166 | /* | 143 | /* |
| 167 | * 32-bit PIO mapping sg iterator | 144 | * 32-bit PIO mapping sg iterator |
| 168 | * | 145 | * |
| @@ -171,12 +148,12 @@ static inline void cb710_sg_miter_stop_writing(struct sg_mapping_iter *miter) | |||
| 171 | * without DMA support). | 148 | * without DMA support). |
| 172 | * | 149 | * |
| 173 | * Best-case reading (transfer from device): | 150 | * Best-case reading (transfer from device): |
| 174 | * sg_miter_start(); | 151 | * sg_miter_start(, SG_MITER_TO_SG); |
| 175 | * cb710_sg_dwiter_write_from_io(); | 152 | * cb710_sg_dwiter_write_from_io(); |
| 176 | * cb710_sg_miter_stop_writing(); | 153 | * sg_miter_stop(); |
| 177 | * | 154 | * |
| 178 | * Best-case writing (transfer to device): | 155 | * Best-case writing (transfer to device): |
| 179 | * sg_miter_start(); | 156 | * sg_miter_start(, SG_MITER_FROM_SG); |
| 180 | * cb710_sg_dwiter_read_to_io(); | 157 | * cb710_sg_dwiter_read_to_io(); |
| 181 | * sg_miter_stop(); | 158 | * sg_miter_stop(); |
| 182 | */ | 159 | */ |
