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| author | Vinod Koul <vinod.koul@intel.com> | 2013-11-16 11:54:17 +0530 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2013-11-16 12:02:36 +0530 |
| commit | df12a3178d340319b1955be6b973a4eb84aff754 (patch) | |
| tree | 2b9c68f8a6c299d1e5a4026c60117b5c00d46008 /drivers/dma/timb_dma.c | |
| parent | 2f986ec6fa57a5dcf77f19f5f0d44b1f680a100f (diff) | |
| parent | 82a1402eaee5dab1f3ab2d5aa4c316451374c5af (diff) | |
| download | op-kernel-dev-df12a3178d340319b1955be6b973a4eb84aff754.zip op-kernel-dev-df12a3178d340319b1955be6b973a4eb84aff754.tar.gz | |
Merge commit 'dmaengine-3.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/dmaengine
Pull dmaengine changes from Dan
1/ Bartlomiej and Dan finalized a rework of the dma address unmap
implementation.
2/ In the course of testing 1/ a collection of enhancements to dmatest
fell out. Notably basic performance statistics, and fixed / enhanced
test control through new module parameters 'run', 'wait', 'noverify',
and 'verbose'. Thanks to Andriy and Linus for their review.
3/ Testing the raid related corner cases of 1/ triggered bugs in the
recently added 16-source operation support in the ioatdma driver.
4/ Some minor fixes / cleanups to mv_xor and ioatdma.
Conflicts:
drivers/dma/dmatest.c
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/timb_dma.c')
| -rw-r--r-- | drivers/dma/timb_dma.c | 37 |
1 files changed, 1 insertions, 36 deletions
diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c index 28af214..4506a7b 100644 --- a/drivers/dma/timb_dma.c +++ b/drivers/dma/timb_dma.c @@ -154,38 +154,6 @@ static bool __td_dma_done_ack(struct timb_dma_chan *td_chan) return done; } -static void __td_unmap_desc(struct timb_dma_chan *td_chan, const u8 *dma_desc, - bool single) -{ - dma_addr_t addr; - int len; - - addr = (dma_desc[7] << 24) | (dma_desc[6] << 16) | (dma_desc[5] << 8) | - dma_desc[4]; - - len = (dma_desc[3] << 8) | dma_desc[2]; - - if (single) - dma_unmap_single(chan2dev(&td_chan->chan), addr, len, - DMA_TO_DEVICE); - else - dma_unmap_page(chan2dev(&td_chan->chan), addr, len, - DMA_TO_DEVICE); -} - -static void __td_unmap_descs(struct timb_dma_desc *td_desc, bool single) -{ - struct timb_dma_chan *td_chan = container_of(td_desc->txd.chan, - struct timb_dma_chan, chan); - u8 *descs; - - for (descs = td_desc->desc_list; ; descs += TIMB_DMA_DESC_SIZE) { - __td_unmap_desc(td_chan, descs, single); - if (descs[0] & 0x02) - break; - } -} - static int td_fill_desc(struct timb_dma_chan *td_chan, u8 *dma_desc, struct scatterlist *sg, bool last) { @@ -293,10 +261,7 @@ static void __td_finish(struct timb_dma_chan *td_chan) list_move(&td_desc->desc_node, &td_chan->free_list); - if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP)) - __td_unmap_descs(td_desc, - txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE); - + dma_descriptor_unmap(txd); /* * The API requires that no submissions are done from a * callback, so we don't need to drop the lock here |
