diff options
Diffstat (limited to 'drivers/dma')
-rw-r--r-- | drivers/dma/txx9dmac.c | 24 | ||||
-rw-r--r-- | drivers/dma/txx9dmac.h | 1 |
2 files changed, 12 insertions, 13 deletions
diff --git a/drivers/dma/txx9dmac.c b/drivers/dma/txx9dmac.c index 88dab52926f4..197c7bc37895 100644 --- a/drivers/dma/txx9dmac.c +++ b/drivers/dma/txx9dmac.c | |||
@@ -180,9 +180,8 @@ static struct txx9dmac_desc *txx9dmac_first_queued(struct txx9dmac_chan *dc) | |||
180 | 180 | ||
181 | static struct txx9dmac_desc *txx9dmac_last_child(struct txx9dmac_desc *desc) | 181 | static struct txx9dmac_desc *txx9dmac_last_child(struct txx9dmac_desc *desc) |
182 | { | 182 | { |
183 | if (!list_empty(&desc->txd.tx_list)) | 183 | if (!list_empty(&desc->tx_list)) |
184 | desc = list_entry(desc->txd.tx_list.prev, | 184 | desc = list_entry(desc->tx_list.prev, typeof(*desc), desc_node); |
185 | struct txx9dmac_desc, desc_node); | ||
186 | return desc; | 185 | return desc; |
187 | } | 186 | } |
188 | 187 | ||
@@ -197,6 +196,7 @@ static struct txx9dmac_desc *txx9dmac_desc_alloc(struct txx9dmac_chan *dc, | |||
197 | desc = kzalloc(sizeof(*desc), flags); | 196 | desc = kzalloc(sizeof(*desc), flags); |
198 | if (!desc) | 197 | if (!desc) |
199 | return NULL; | 198 | return NULL; |
199 | INIT_LIST_HEAD(&desc->tx_list); | ||
200 | dma_async_tx_descriptor_init(&desc->txd, &dc->chan); | 200 | dma_async_tx_descriptor_init(&desc->txd, &dc->chan); |
201 | desc->txd.tx_submit = txx9dmac_tx_submit; | 201 | desc->txd.tx_submit = txx9dmac_tx_submit; |
202 | /* txd.flags will be overwritten in prep funcs */ | 202 | /* txd.flags will be overwritten in prep funcs */ |
@@ -245,7 +245,7 @@ static void txx9dmac_sync_desc_for_cpu(struct txx9dmac_chan *dc, | |||
245 | struct txx9dmac_dev *ddev = dc->ddev; | 245 | struct txx9dmac_dev *ddev = dc->ddev; |
246 | struct txx9dmac_desc *child; | 246 | struct txx9dmac_desc *child; |
247 | 247 | ||
248 | list_for_each_entry(child, &desc->txd.tx_list, desc_node) | 248 | list_for_each_entry(child, &desc->tx_list, desc_node) |
249 | dma_sync_single_for_cpu(chan2parent(&dc->chan), | 249 | dma_sync_single_for_cpu(chan2parent(&dc->chan), |
250 | child->txd.phys, ddev->descsize, | 250 | child->txd.phys, ddev->descsize, |
251 | DMA_TO_DEVICE); | 251 | DMA_TO_DEVICE); |
@@ -267,11 +267,11 @@ static void txx9dmac_desc_put(struct txx9dmac_chan *dc, | |||
267 | txx9dmac_sync_desc_for_cpu(dc, desc); | 267 | txx9dmac_sync_desc_for_cpu(dc, desc); |
268 | 268 | ||
269 | spin_lock_bh(&dc->lock); | 269 | spin_lock_bh(&dc->lock); |
270 | list_for_each_entry(child, &desc->txd.tx_list, desc_node) | 270 | list_for_each_entry(child, &desc->tx_list, desc_node) |
271 | dev_vdbg(chan2dev(&dc->chan), | 271 | dev_vdbg(chan2dev(&dc->chan), |
272 | "moving child desc %p to freelist\n", | 272 | "moving child desc %p to freelist\n", |
273 | child); | 273 | child); |
274 | list_splice_init(&desc->txd.tx_list, &dc->free_list); | 274 | list_splice_init(&desc->tx_list, &dc->free_list); |
275 | dev_vdbg(chan2dev(&dc->chan), "moving desc %p to freelist\n", | 275 | dev_vdbg(chan2dev(&dc->chan), "moving desc %p to freelist\n", |
276 | desc); | 276 | desc); |
277 | list_add(&desc->desc_node, &dc->free_list); | 277 | list_add(&desc->desc_node, &dc->free_list); |
@@ -429,7 +429,7 @@ txx9dmac_descriptor_complete(struct txx9dmac_chan *dc, | |||
429 | param = txd->callback_param; | 429 | param = txd->callback_param; |
430 | 430 | ||
431 | txx9dmac_sync_desc_for_cpu(dc, desc); | 431 | txx9dmac_sync_desc_for_cpu(dc, desc); |
432 | list_splice_init(&txd->tx_list, &dc->free_list); | 432 | list_splice_init(&desc->tx_list, &dc->free_list); |
433 | list_move(&desc->desc_node, &dc->free_list); | 433 | list_move(&desc->desc_node, &dc->free_list); |
434 | 434 | ||
435 | if (!ds) { | 435 | if (!ds) { |
@@ -571,7 +571,7 @@ static void txx9dmac_handle_error(struct txx9dmac_chan *dc, u32 csr) | |||
571 | "Bad descriptor submitted for DMA! (cookie: %d)\n", | 571 | "Bad descriptor submitted for DMA! (cookie: %d)\n", |
572 | bad_desc->txd.cookie); | 572 | bad_desc->txd.cookie); |
573 | txx9dmac_dump_desc(dc, &bad_desc->hwdesc); | 573 | txx9dmac_dump_desc(dc, &bad_desc->hwdesc); |
574 | list_for_each_entry(child, &bad_desc->txd.tx_list, desc_node) | 574 | list_for_each_entry(child, &bad_desc->tx_list, desc_node) |
575 | txx9dmac_dump_desc(dc, &child->hwdesc); | 575 | txx9dmac_dump_desc(dc, &child->hwdesc); |
576 | /* Pretend the descriptor completed successfully */ | 576 | /* Pretend the descriptor completed successfully */ |
577 | txx9dmac_descriptor_complete(dc, bad_desc); | 577 | txx9dmac_descriptor_complete(dc, bad_desc); |
@@ -613,7 +613,7 @@ static void txx9dmac_scan_descriptors(struct txx9dmac_chan *dc) | |||
613 | return; | 613 | return; |
614 | } | 614 | } |
615 | 615 | ||
616 | list_for_each_entry(child, &desc->txd.tx_list, desc_node) | 616 | list_for_each_entry(child, &desc->tx_list, desc_node) |
617 | if (desc_read_CHAR(dc, child) == chain) { | 617 | if (desc_read_CHAR(dc, child) == chain) { |
618 | /* Currently in progress */ | 618 | /* Currently in progress */ |
619 | if (csr & TXX9_DMA_CSR_ABCHC) | 619 | if (csr & TXX9_DMA_CSR_ABCHC) |
@@ -823,8 +823,7 @@ txx9dmac_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src, | |||
823 | dma_sync_single_for_device(chan2parent(&dc->chan), | 823 | dma_sync_single_for_device(chan2parent(&dc->chan), |
824 | prev->txd.phys, ddev->descsize, | 824 | prev->txd.phys, ddev->descsize, |
825 | DMA_TO_DEVICE); | 825 | DMA_TO_DEVICE); |
826 | list_add_tail(&desc->desc_node, | 826 | list_add_tail(&desc->desc_node, &first->tx_list); |
827 | &first->txd.tx_list); | ||
828 | } | 827 | } |
829 | prev = desc; | 828 | prev = desc; |
830 | } | 829 | } |
@@ -919,8 +918,7 @@ txx9dmac_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, | |||
919 | prev->txd.phys, | 918 | prev->txd.phys, |
920 | ddev->descsize, | 919 | ddev->descsize, |
921 | DMA_TO_DEVICE); | 920 | DMA_TO_DEVICE); |
922 | list_add_tail(&desc->desc_node, | 921 | list_add_tail(&desc->desc_node, &first->tx_list); |
923 | &first->txd.tx_list); | ||
924 | } | 922 | } |
925 | prev = desc; | 923 | prev = desc; |
926 | } | 924 | } |
diff --git a/drivers/dma/txx9dmac.h b/drivers/dma/txx9dmac.h index c907ff01d276..365d42366b9f 100644 --- a/drivers/dma/txx9dmac.h +++ b/drivers/dma/txx9dmac.h | |||
@@ -231,6 +231,7 @@ struct txx9dmac_desc { | |||
231 | 231 | ||
232 | /* THEN values for driver housekeeping */ | 232 | /* THEN values for driver housekeeping */ |
233 | struct list_head desc_node ____cacheline_aligned; | 233 | struct list_head desc_node ____cacheline_aligned; |
234 | struct list_head tx_list; | ||
234 | struct dma_async_tx_descriptor txd; | 235 | struct dma_async_tx_descriptor txd; |
235 | size_t len; | 236 | size_t len; |
236 | }; | 237 | }; |