luck/tmp_suning_uos_patched
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dmaengine: remove DMA unmap flags

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Remove no longer needed DMA unmap flags:
- DMA_COMPL_SKIP_SRC_UNMAP
- DMA_COMPL_SKIP_DEST_UNMAP
- DMA_COMPL_SRC_UNMAP_SINGLE
- DMA_COMPL_DEST_UNMAP_SINGLE

Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Jon Mason <jon.mason@intel.com>
Acked-by: Mark Brown <broonie@linaro.org>
[djbw: clean up straggling skip unmap flags in ntb]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2013-10-18 19:35:33 +02:00 committed by Dan Williams
parent 54f8d501e8
commit 0776ae7b89
18 changed files with 27 additions and 67 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
crypto/async_tx/async_memcpy.c
View File

@ -56,8 +56,7 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset,
unmap = dmaengine_get_unmap_data(device->dev, 2, GFP_NOIO);
if (unmap && is_dma_copy_aligned(device, src_offset, dest_offset, len)) {
unsigned long dma_prep_flags = DMA_COMPL_SKIP_SRC_UNMAP |
DMA_COMPL_SKIP_DEST_UNMAP;
unsigned long dma_prep_flags = 0;
if (submit->cb_fn)
dma_prep_flags |= DMA_PREP_INTERRUPT;

1
crypto/async_tx/async_pq.c
View File

@ -62,7 +62,6 @@ do_async_gen_syndrome(struct dma_chan *chan,
dma_addr_t dma_dest[2];
int src_off = 0;
dma_flags |= DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP;
if (submit->flags & ASYNC_TX_FENCE)
dma_flags |= DMA_PREP_FENCE;

8
crypto/async_tx/async_raid6_recov.c
View File

@ -47,9 +47,7 @@ async_sum_product(struct page *dest, struct page **srcs, unsigned char *coef,
struct device *dev = dma->dev;
dma_addr_t pq[2];
struct dma_async_tx_descriptor *tx;
enum dma_ctrl_flags dma_flags = DMA_COMPL_SKIP_SRC_UNMAP |
DMA_COMPL_SKIP_DEST_UNMAP |
DMA_PREP_PQ_DISABLE_P;
enum dma_ctrl_flags dma_flags = DMA_PREP_PQ_DISABLE_P;
if (submit->flags & ASYNC_TX_FENCE)
dma_flags |= DMA_PREP_FENCE;
@ -113,9 +111,7 @@ async_mult(struct page *dest, struct page *src, u8 coef, size_t len,
dma_addr_t dma_dest[2];
struct device *dev = dma->dev;
struct dma_async_tx_descriptor *tx;
enum dma_ctrl_flags dma_flags = DMA_COMPL_SKIP_SRC_UNMAP |
DMA_COMPL_SKIP_DEST_UNMAP |
DMA_PREP_PQ_DISABLE_P;
enum dma_ctrl_flags dma_flags = DMA_PREP_PQ_DISABLE_P;
if (submit->flags & ASYNC_TX_FENCE)
dma_flags |= DMA_PREP_FENCE;

6
crypto/async_tx/async_xor.c
View File

@ -41,7 +41,7 @@ do_async_xor(struct dma_chan *chan, struct dmaengine_unmap_data *unmap,
dma_async_tx_callback cb_fn_orig = submit->cb_fn;
void *cb_param_orig = submit->cb_param;
enum async_tx_flags flags_orig = submit->flags;
enum dma_ctrl_flags dma_flags;
enum dma_ctrl_flags dma_flags = 0;
int src_cnt = unmap->to_cnt;
int xor_src_cnt;
dma_addr_t dma_dest = unmap->addr[unmap->to_cnt];
@ -55,7 +55,6 @@ do_async_xor(struct dma_chan *chan, struct dmaengine_unmap_data *unmap,
/* if we are submitting additional xors, leave the chain open
* and clear the callback parameters
*/
dma_flags = DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP;
if (src_cnt > xor_src_cnt) {
submit->flags &= ~ASYNC_TX_ACK;
submit->flags |= ASYNC_TX_FENCE;
@ -284,8 +283,7 @@ async_xor_val(struct page *dest, struct page **src_list, unsigned int offset,
if (unmap && src_cnt <= device->max_xor &&
is_dma_xor_aligned(device, offset, 0, len)) {
unsigned long dma_prep_flags = DMA_COMPL_SKIP_SRC_UNMAP |
DMA_COMPL_SKIP_DEST_UNMAP;
unsigned long dma_prep_flags = 0;
int i;
pr_debug("%s: (async) len: %zu\n", __func__, len);

3
drivers/ata/pata_arasan_cf.c
View File

@ -396,8 +396,7 @@ dma_xfer(struct arasan_cf_dev *acdev, dma_addr_t src, dma_addr_t dest, u32 len)
struct dma_async_tx_descriptor *tx;
struct dma_chan *chan = acdev->dma_chan;
dma_cookie_t cookie;
unsigned long flags = DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP |
DMA_COMPL_SKIP_DEST_UNMAP;
unsigned long flags = DMA_PREP_INTERRUPT;
int ret = 0;
tx = chan->device->device_prep_dma_memcpy(chan, dest, src, len, flags);

3
drivers/dma/dmaengine.c
View File

@ -1065,8 +1065,7 @@ dma_async_memcpy_pg_to_pg(struct dma_chan *chan, struct page *dest_pg,
unmap->addr[1] = dma_map_page(dev->dev, dest_pg, dest_off, len,
DMA_FROM_DEVICE);
unmap->len = len;
flags = DMA_CTRL_ACK | DMA_COMPL_SKIP_SRC_UNMAP |
DMA_COMPL_SKIP_DEST_UNMAP;
flags = DMA_CTRL_ACK;
tx = dev->device_prep_dma_memcpy(chan, unmap->addr[1], unmap->addr[0],
len, flags);

3
drivers/dma/dmatest.c
View File

@ -599,8 +599,7 @@ static int dmatest_func(void *data)
/*
* src and dst buffers are freed by ourselves below
*/
flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT |
DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP;
flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT;
while (!kthread_should_stop()
&& !(params->iterations && total_tests >= params->iterations)) {

3
drivers/dma/ioat/dma.c
View File

@ -818,8 +818,7 @@ int ioat_dma_self_test(struct ioatdma_device *device)
dma_src = dma_map_single(dev, src, IOAT_TEST_SIZE, DMA_TO_DEVICE);
dma_dest = dma_map_single(dev, dest, IOAT_TEST_SIZE, DMA_FROM_DEVICE);
flags = DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP |
DMA_PREP_INTERRUPT;
flags = DMA_PREP_INTERRUPT;
tx = device->common.device_prep_dma_memcpy(dma_chan, dma_dest, dma_src,
IOAT_TEST_SIZE, flags);
if (!tx) {

12
drivers/dma/ioat/dma_v3.c
View File

@ -1279,9 +1279,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
DMA_TO_DEVICE);
tx = dma->device_prep_dma_xor(dma_chan, dest_dma, dma_srcs,
IOAT_NUM_SRC_TEST, PAGE_SIZE,
DMA_PREP_INTERRUPT |
DMA_COMPL_SKIP_SRC_UNMAP |
DMA_COMPL_SKIP_DEST_UNMAP);
DMA_PREP_INTERRUPT);
if (!tx) {
dev_err(dev, "Self-test xor prep failed\n");
@ -1342,9 +1340,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
DMA_TO_DEVICE);
tx = dma->device_prep_dma_xor_val(dma_chan, dma_srcs,
IOAT_NUM_SRC_TEST + 1, PAGE_SIZE,
&xor_val_result, DMA_PREP_INTERRUPT |
DMA_COMPL_SKIP_SRC_UNMAP |
DMA_COMPL_SKIP_DEST_UNMAP);
&xor_val_result, DMA_PREP_INTERRUPT);
if (!tx) {
dev_err(dev, "Self-test zero prep failed\n");
err = -ENODEV;
@ -1389,9 +1385,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
DMA_TO_DEVICE);
tx = dma->device_prep_dma_xor_val(dma_chan, dma_srcs,
IOAT_NUM_SRC_TEST + 1, PAGE_SIZE,
&xor_val_result, DMA_PREP_INTERRUPT |
DMA_COMPL_SKIP_SRC_UNMAP |
DMA_COMPL_SKIP_DEST_UNMAP);
&xor_val_result, DMA_PREP_INTERRUPT);
if (!tx) {
dev_err(dev, "Self-test 2nd zero prep failed\n");
err = -ENODEV;

3
drivers/media/platform/m2m-deinterlace.c
View File

@ -341,8 +341,7 @@ static void deinterlace_issue_dma(struct deinterlace_ctx *ctx, int op,
ctx->xt->dir = DMA_MEM_TO_MEM;
ctx->xt->src_sgl = false;
ctx->xt->dst_sgl = true;
flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT |
DMA_COMPL_SKIP_DEST_UNMAP | DMA_COMPL_SKIP_SRC_UNMAP;
flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT;
tx = dmadev->device_prep_interleaved_dma(chan, ctx->xt, flags);
if (tx == NULL) {

2
drivers/media/platform/timblogiw.c
View File

@ -565,7 +565,7 @@ static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
desc = dmaengine_prep_slave_sg(fh->chan,
buf->sg, sg_elems, DMA_DEV_TO_MEM,
DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP);
DMA_PREP_INTERRUPT);
if (!desc) {
spin_lock_irq(&fh->queue_lock);
list_del_init(&vb->queue);

3
drivers/misc/carma/carma-fpga.c
View File

@ -631,8 +631,7 @@ static int data_submit_dma(struct fpga_device *priv, struct data_buf *buf)
struct dma_async_tx_descriptor *tx;
dma_cookie_t cookie;
dma_addr_t dst, src;
unsigned long dma_flags = DMA_COMPL_SKIP_DEST_UNMAP |
DMA_COMPL_SKIP_SRC_UNMAP;
unsigned long dma_flags = 0;
dst_sg = buf->vb.sglist;
dst_nents = buf->vb.sglen;

3
drivers/mtd/nand/atmel_nand.c
View File

@ -375,8 +375,7 @@ static int atmel_nand_dma_op(struct mtd_info *mtd, void *buf, int len,
dma_dev = host->dma_chan->device;
flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP |
DMA_COMPL_SKIP_DEST_UNMAP;
flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT;
phys_addr = dma_map_single(dma_dev->dev, p, len, dir);
if (dma_mapping_error(dma_dev->dev, phys_addr)) {

2
drivers/mtd/nand/fsmc_nand.c
View File

@ -573,8 +573,6 @@ static int dma_xfer(struct fsmc_nand_data *host, void *buffer, int len,
dma_dev = chan->device;
dma_addr = dma_map_single(dma_dev->dev, buffer, len, direction);
flags |= DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP;
if (direction == DMA_TO_DEVICE) {
dma_src = dma_addr;
dma_dst = host->data_pa;

6
drivers/net/ethernet/micrel/ks8842.c
View File

@ -459,8 +459,7 @@ static int ks8842_tx_frame_dma(struct sk_buff *skb, struct net_device *netdev)
sg_dma_len(&ctl->sg) += 4 - sg_dma_len(&ctl->sg) % 4;
ctl->adesc = dmaengine_prep_slave_sg(ctl->chan,
&ctl->sg, 1, DMA_MEM_TO_DEV,
DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP);
&ctl->sg, 1, DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT);
if (!ctl->adesc)
return NETDEV_TX_BUSY;
@ -571,8 +570,7 @@ static int __ks8842_start_new_rx_dma(struct net_device *netdev)
sg_dma_len(sg) = DMA_BUFFER_SIZE;
ctl->adesc = dmaengine_prep_slave_sg(ctl->chan,
sg, 1, DMA_DEV_TO_MEM,
DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP);
sg, 1, DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT);
if (!ctl->adesc)
goto out;

11
drivers/ntb/ntb_transport.c
View File

@ -1037,7 +1037,6 @@ static void ntb_async_rx(struct ntb_queue_entry *entry, void *offset,
struct dmaengine_unmap_data *unmap;
dma_cookie_t cookie;
void *buf = entry->buf;
unsigned long flags;
entry->len = len;
@ -1073,10 +1072,9 @@ static void ntb_async_rx(struct ntb_queue_entry *entry, void *offset,
unmap->from_cnt = 1;
flags = DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP |
DMA_PREP_INTERRUPT;
txd = device->device_prep_dma_memcpy(chan, unmap->addr[1],
unmap->addr[0], len, flags);
unmap->addr[0], len,
DMA_PREP_INTERRUPT);
if (!txd)
goto err_get_unmap;
@ -1266,7 +1264,6 @@ static void ntb_async_tx(struct ntb_transport_qp *qp,
void __iomem *offset;
size_t len = entry->len;
void *buf = entry->buf;
unsigned long flags;
offset = qp->tx_mw + qp->tx_max_frame * qp->tx_index;
hdr = offset + qp->tx_max_frame - sizeof(struct ntb_payload_header);
@ -1301,10 +1298,8 @@ static void ntb_async_tx(struct ntb_transport_qp *qp,
unmap->to_cnt = 1;
flags = DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP |
DMA_PREP_INTERRUPT;
txd = device->device_prep_dma_memcpy(chan, dest, unmap->addr[0], len,
flags);
DMA_PREP_INTERRUPT);
if (!txd)
goto err_get_unmap;

4
drivers/spi/spi-dw-mid.c
View File

@ -150,7 +150,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
&dws->tx_sgl,
1,
DMA_MEM_TO_DEV,
DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_DEST_UNMAP);
DMA_PREP_INTERRUPT);
txdesc->callback = dw_spi_dma_done;
txdesc->callback_param = dws;
@ -173,7 +173,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
&dws->rx_sgl,
1,
DMA_DEV_TO_MEM,
DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_DEST_UNMAP);
DMA_PREP_INTERRUPT);
rxdesc->callback = dw_spi_dma_done;
rxdesc->callback_param = dws;

18
include/linux/dmaengine.h
View File

@ -171,12 +171,6 @@ struct dma_interleaved_template {
* @DMA_CTRL_ACK - if clear, the descriptor cannot be reused until the client
* acknowledges receipt, i.e. has has a chance to establish any dependency
* chains
* @DMA_COMPL_SKIP_SRC_UNMAP - set to disable dma-unmapping the source buffer(s)
* @DMA_COMPL_SKIP_DEST_UNMAP - set to disable dma-unmapping the destination(s)
* @DMA_COMPL_SRC_UNMAP_SINGLE - set to do the source dma-unmapping as single
* (if not set, do the source dma-unmapping as page)
* @DMA_COMPL_DEST_UNMAP_SINGLE - set to do the destination dma-unmapping as single
* (if not set, do the destination dma-unmapping as page)
* @DMA_PREP_PQ_DISABLE_P - prevent generation of P while generating Q
* @DMA_PREP_PQ_DISABLE_Q - prevent generation of Q while generating P
* @DMA_PREP_CONTINUE - indicate to a driver that it is reusing buffers as
@ -188,14 +182,10 @@ struct dma_interleaved_template {
enum dma_ctrl_flags {
DMA_PREP_INTERRUPT = (1 << 0),
DMA_CTRL_ACK = (1 << 1),
DMA_COMPL_SKIP_SRC_UNMAP = (1 << 2),
DMA_COMPL_SKIP_DEST_UNMAP = (1 << 3),
DMA_COMPL_SRC_UNMAP_SINGLE = (1 << 4),
DMA_COMPL_DEST_UNMAP_SINGLE = (1 << 5),
DMA_PREP_PQ_DISABLE_P = (1 << 6),
DMA_PREP_PQ_DISABLE_Q = (1 << 7),
DMA_PREP_CONTINUE = (1 << 8),
DMA_PREP_FENCE = (1 << 9),
DMA_PREP_PQ_DISABLE_P = (1 << 2),
DMA_PREP_PQ_DISABLE_Q = (1 << 3),
DMA_PREP_CONTINUE = (1 << 4),
DMA_PREP_FENCE = (1 << 5),
};
/**