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Merge commit 'dmaengine-3.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/dmaengine

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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>
This commit is contained in:
Vinod Koul
2013-11-16 11:54:17 +05:30
parent 2f986ec6fa 82a1402eae
commit df12a3178d
39 changed files with 1034 additions and 1927 deletions
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52
drivers/dma/mv_xor.c
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@@ -60,14 +60,6 @@ static u32 mv_desc_get_dest_addr(struct mv_xor_desc_slot *desc)
return hw_desc->phy_dest_addr;
}
static u32 mv_desc_get_src_addr(struct mv_xor_desc_slot *desc,
int src_idx)
{
struct mv_xor_desc *hw_desc = desc->hw_desc;
return hw_desc->phy_src_addr[mv_phy_src_idx(src_idx)];
}
static void mv_desc_set_byte_count(struct mv_xor_desc_slot *desc,
u32 byte_count)
{
@@ -278,42 +270,9 @@ mv_xor_run_tx_complete_actions(struct mv_xor_desc_slot *desc,
desc->async_tx.callback(
desc->async_tx.callback_param);
/* unmap dma addresses
* (unmap_single vs unmap_page?)
*/
if (desc->group_head && desc->unmap_len) {
struct mv_xor_desc_slot *unmap = desc->group_head;
struct device *dev = mv_chan_to_devp(mv_chan);
u32 len = unmap->unmap_len;
enum dma_ctrl_flags flags = desc->async_tx.flags;
u32 src_cnt;
dma_addr_t addr;
dma_addr_t dest;
src_cnt = unmap->unmap_src_cnt;
dest = mv_desc_get_dest_addr(unmap);
if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
enum dma_data_direction dir;
if (src_cnt > 1) /* is xor ? */
dir = DMA_BIDIRECTIONAL;
else
dir = DMA_FROM_DEVICE;
dma_unmap_page(dev, dest, len, dir);
}
if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
while (src_cnt--) {
addr = mv_desc_get_src_addr(unmap,
src_cnt);
if (addr == dest)
continue;
dma_unmap_page(dev, addr, len,
DMA_TO_DEVICE);
}
}
dma_descriptor_unmap(&desc->async_tx);
if (desc->group_head)
desc->group_head = NULL;
}
}
/* run dependent operations */
@@ -1076,10 +1035,7 @@ mv_xor_channel_add(struct mv_xor_device *xordev,
}
mv_chan->mmr_base = xordev->xor_base;
if (!mv_chan->mmr_base) {
ret = -ENOMEM;
goto err_free_dma;
}
mv_chan->mmr_high_base = xordev->xor_high_base;
tasklet_init(&mv_chan->irq_tasklet, mv_xor_tasklet, (unsigned long)
mv_chan);
@@ -1138,7 +1094,7 @@ static void
mv_xor_conf_mbus_windows(struct mv_xor_device *xordev,
const struct mbus_dram_target_info *dram)
{
void __iomem *base = xordev->xor_base;
void __iomem *base = xordev->xor_high_base;
u32 win_enable = 0;
int i;