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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-30 02:34:57 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-30 02:34:57 +0400 |
commit | ef08e78268423fc4d7fbc3e54bd9a67fc8da7cc5 (patch) | |
tree | d0561d3ef89c9cd277a38168e33850666cbd33c4 /drivers/dma/mv_xor.c | |
parent | 71db34fc4330f7c784397acb9f1e6ee7f7b32eb2 (diff) | |
parent | 5b2e02e401deb44e7f5befe19404d8b2688efea4 (diff) | |
download | linux-ef08e78268423fc4d7fbc3e54bd9a67fc8da7cc5.tar.xz |
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine update from Vinod Koul:
"This includes the cookie cleanup by Russell, the addition of context
parameter for dmaengine APIs, more arm dmaengine driver cleanup by
moving code to dmaengine, this time for imx by Javier and pl330 by
Boojin along with the usual driver fixes."
Fix up some fairly trivial conflicts with various other cleanups.
* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (67 commits)
dmaengine: imx: fix the build failure on x86_64
dmaengine: i.MX: Fix merge of cookie branch.
dmaengine: i.MX: Add support for interleaved transfers.
dmaengine: imx-dma: use 'dev_dbg' and 'dev_warn' for messages.
dmaengine: imx-dma: remove 'imx_dmav1_baseaddr' and 'dma_clk'.
dmaengine: imx-dma: remove unused arg of imxdma_sg_next.
dmaengine: imx-dma: remove internal structure.
dmaengine: imx-dma: remove 'resbytes' field of 'internal' structure.
dmaengine: imx-dma: remove 'in_use' field of 'internal' structure.
dmaengine: imx-dma: remove sg member from internal structure.
dmaengine: imx-dma: remove 'imxdma_setup_sg_hw' function.
dmaengine: imx-dma: remove 'imxdma_config_channel_hw' function.
dmaengine: imx-dma: remove 'imxdma_setup_mem2mem_hw' function.
dmaengine: imx-dma: remove dma_mode member of internal structure.
dmaengine: imx-dma: remove data member from internal structure.
dmaengine: imx-dma: merge old dma-v1.c with imx-dma.c
dmaengine: at_hdmac: add slave config operation
dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic
dmaengine/dma_slave: introduce inline wrappers
dma: imx-sdma: Treat firmware messages as warnings instead of erros
...
Diffstat (limited to 'drivers/dma/mv_xor.c')
-rw-r--r-- | drivers/dma/mv_xor.c | 34 |
1 files changed, 7 insertions, 27 deletions
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c index e779b434af45..fa5d55fea46c 100644 --- a/drivers/dma/mv_xor.c +++ b/drivers/dma/mv_xor.c @@ -26,6 +26,8 @@ #include <linux/platform_device.h> #include <linux/memory.h> #include <plat/mv_xor.h> + +#include "dmaengine.h" #include "mv_xor.h" static void mv_xor_issue_pending(struct dma_chan *chan); @@ -435,7 +437,7 @@ static void __mv_xor_slot_cleanup(struct mv_xor_chan *mv_chan) } if (cookie > 0) - mv_chan->completed_cookie = cookie; + mv_chan->common.completed_cookie = cookie; } static void @@ -534,18 +536,6 @@ retry: return NULL; } -static dma_cookie_t -mv_desc_assign_cookie(struct mv_xor_chan *mv_chan, - struct mv_xor_desc_slot *desc) -{ - dma_cookie_t cookie = mv_chan->common.cookie; - - if (++cookie < 0) - cookie = 1; - mv_chan->common.cookie = desc->async_tx.cookie = cookie; - return cookie; -} - /************************ DMA engine API functions ****************************/ static dma_cookie_t mv_xor_tx_submit(struct dma_async_tx_descriptor *tx) @@ -563,7 +553,7 @@ mv_xor_tx_submit(struct dma_async_tx_descriptor *tx) grp_start = sw_desc->group_head; spin_lock_bh(&mv_chan->lock); - cookie = mv_desc_assign_cookie(mv_chan, sw_desc); + cookie = dma_cookie_assign(tx); if (list_empty(&mv_chan->chain)) list_splice_init(&sw_desc->tx_list, &mv_chan->chain); @@ -820,27 +810,16 @@ static enum dma_status mv_xor_status(struct dma_chan *chan, struct dma_tx_state *txstate) { struct mv_xor_chan *mv_chan = to_mv_xor_chan(chan); - dma_cookie_t last_used; - dma_cookie_t last_complete; enum dma_status ret; - last_used = chan->cookie; - last_complete = mv_chan->completed_cookie; - mv_chan->is_complete_cookie = cookie; - dma_set_tx_state(txstate, last_complete, last_used, 0); - - ret = dma_async_is_complete(cookie, last_complete, last_used); + ret = dma_cookie_status(chan, cookie, txstate); if (ret == DMA_SUCCESS) { mv_xor_clean_completed_slots(mv_chan); return ret; } mv_xor_slot_cleanup(mv_chan); - last_used = chan->cookie; - last_complete = mv_chan->completed_cookie; - - dma_set_tx_state(txstate, last_complete, last_used, 0); - return dma_async_is_complete(cookie, last_complete, last_used); + return dma_cookie_status(chan, cookie, txstate); } static void mv_dump_xor_regs(struct mv_xor_chan *chan) @@ -1214,6 +1193,7 @@ static int __devinit mv_xor_probe(struct platform_device *pdev) INIT_LIST_HEAD(&mv_chan->completed_slots); INIT_LIST_HEAD(&mv_chan->all_slots); mv_chan->common.device = dma_dev; + dma_cookie_init(&mv_chan->common); list_add_tail(&mv_chan->common.device_node, &dma_dev->channels); |