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Date: Mon, 05 Nov 2012 11:00:31 +0100
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To: linux-kernel@...r.kernel.org
Cc: djbw@...com, dwmw2@...radead.org, hskinnemoen@...il.com,
iws@...o.caltech.edu, vinod.koul@...el.com, vipin.kumar@...com,
t.figa@...sung.com, kyungmin.park@...sung.com,
Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: [PATCH 20/20] DMA: remove DMA unmap flags
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@...el.com>
Cc: Tomasz Figa <t.figa@...sung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@...sung.com>
---
crypto/async_tx/async_memcpy.c | 3 +--
crypto/async_tx/async_memset.c | 3 +--
crypto/async_tx/async_pq.c | 3 +--
crypto/async_tx/async_raid6_recov.c | 8 ++------
crypto/async_tx/async_xor.c | 6 ++----
drivers/ata/pata_arasan_cf.c | 3 +--
drivers/dma/dmaengine.c | 9 +++------
drivers/dma/dmatest.c | 3 +--
drivers/dma/ioat/dma.c | 3 +--
drivers/dma/ioat/dma_v3.c | 16 ++++------------
drivers/media/platform/m2m-deinterlace.c | 3 +--
drivers/media/platform/timblogiw.c | 2 +-
drivers/misc/carma/carma-fpga.c | 3 +--
drivers/mtd/nand/atmel_nand.c | 3 +--
drivers/mtd/nand/fsmc_nand.c | 2 --
drivers/net/ethernet/micrel/ks8842.c | 6 ++----
drivers/spi/spi-dw-mid.c | 4 ++--
include/linux/dmaengine.h | 18 ++++--------------
18 files changed, 29 insertions(+), 69 deletions(-)
diff --git a/crypto/async_tx/async_memcpy.c b/crypto/async_tx/async_memcpy.c
index cb0628e..ff5e803 100644
--- a/crypto/async_tx/async_memcpy.c
+++ b/crypto/async_tx/async_memcpy.c
@@ -65,8 +65,7 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset,
dma_addr_t dma_dest, dma_src;
if (device && 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;
diff --git a/crypto/async_tx/async_memset.c b/crypto/async_tx/async_memset.c
index cf30bf1..7775852 100644
--- a/crypto/async_tx/async_memset.c
+++ b/crypto/async_tx/async_memset.c
@@ -61,8 +61,7 @@ async_memset(struct page *dest, int val, unsigned int offset, size_t len,
dma_addr_t dma_dest;
if (device && is_dma_fill_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;
if (submit->cb_fn)
dma_prep_flags |= DMA_PREP_INTERRUPT;
diff --git a/crypto/async_tx/async_pq.c b/crypto/async_tx/async_pq.c
index 9e5500e..0963de5 100644
--- a/crypto/async_tx/async_pq.c
+++ b/crypto/async_tx/async_pq.c
@@ -94,8 +94,7 @@ do_async_gen_syndrome(struct dma_chan *chan, struct page **blocks,
while (src_cnt > 0) {
submit->flags = flags_orig;
- dma_flags = DMA_COMPL_SKIP_SRC_UNMAP |
- DMA_COMPL_SKIP_DEST_UNMAP;
+ dma_flags = 0;
pq_src_cnt = min(src_cnt, dma_maxpq(dma, dma_flags));
/* if we are submitting additional pqs, leave the chain open,
* clear the callback parameters, and leave the destination
diff --git a/crypto/async_tx/async_raid6_recov.c b/crypto/async_tx/async_raid6_recov.c
index 3db97aa..b0fceb1 100644
--- a/crypto/async_tx/async_raid6_recov.c
+++ b/crypto/async_tx/async_raid6_recov.c
@@ -57,9 +57,7 @@ async_sum_product(struct page *dest, struct page **srcs, unsigned char *coef,
dma_addr_t dma_src[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;
@@ -133,9 +131,7 @@ async_mult(struct page *dest, struct page *src, u8 coef, size_t len,
dma_addr_t dma_src[1];
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;
diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c
index d44da16..e632913 100644
--- a/crypto/async_tx/async_xor.c
+++ b/crypto/async_tx/async_xor.c
@@ -78,8 +78,7 @@ do_async_xor(struct dma_chan *chan, struct page *dest, struct page **src_list,
while (src_cnt) {
submit->flags = flags_orig;
- dma_flags = DMA_COMPL_SKIP_SRC_UNMAP |
- DMA_COMPL_SKIP_DEST_UNMAP;
+ dma_flags = 0;
xor_src_cnt = min(src_cnt, (int)dma->max_xor);
/* if we are submitting additional xors, leave the chain open
* and clear the callback parameters
@@ -333,8 +332,7 @@ async_xor_val(struct page *dest, struct page **src_list, unsigned int offset,
if (dma_src && device && 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);
diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index 26201eb..9a6d38d 100644
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c
@@ -393,8 +393,7 @@ 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);
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 5573e86..b137121 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -888,8 +888,7 @@ dma_async_memcpy_buf_to_buf(struct dma_chan *chan, void *dest,
dma_src = dma_map_single(dev->dev, src, len, DMA_TO_DEVICE);
dma_dest = dma_map_single(dev->dev, dest, len, DMA_FROM_DEVICE);
- 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, dma_dest, dma_src, len, flags);
if (!tx) {
@@ -950,8 +949,7 @@ dma_async_memcpy_buf_to_pg(struct dma_chan *chan, struct page *page,
dma_src = dma_map_single(dev->dev, kdata, len, DMA_TO_DEVICE);
dma_dest = dma_map_page(dev->dev, page, offset, len, DMA_FROM_DEVICE);
- 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, dma_dest, dma_src, len, flags);
if (!tx) {
@@ -1015,8 +1013,7 @@ dma_async_memcpy_pg_to_pg(struct dma_chan *chan, struct page *dest_pg,
dma_src = dma_map_page(dev->dev, src_pg, src_off, len, DMA_TO_DEVICE);
dma_dest = dma_map_page(dev->dev, dest_pg, dest_off, len,
DMA_FROM_DEVICE);
- 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, dma_dest, dma_src, len, flags);
if (!tx) {
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 3b36890..df78702 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -305,8 +305,7 @@ static int dmatest_func(void *data)
set_user_nice(current, 10);
/* 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()
&& !(iterations && total_tests >= iterations)) {
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 0851ded..cc18aaa 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -817,8 +817,7 @@ int __devinit 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) {
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index 5027c0b..64b3744 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -798,9 +798,7 @@ static int __devinit 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");
@@ -861,9 +859,7 @@ static int __devinit 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;
@@ -909,9 +905,7 @@ static int __devinit ioat_xor_val_self_test(struct ioatdma_device *device)
dma_addr = dma_map_page(dev, dest, 0,
PAGE_SIZE, DMA_FROM_DEVICE);
tx = dma->device_prep_dma_memset(dma_chan, dma_addr, 0, 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 memset prep failed\n");
err = -ENODEV;
@@ -958,9 +952,7 @@ static int __devinit 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;
diff --git a/drivers/media/platform/m2m-deinterlace.c b/drivers/media/platform/m2m-deinterlace.c
index 45164c4..8c63b93 100644
--- a/drivers/media/platform/m2m-deinterlace.c
+++ b/drivers/media/platform/m2m-deinterlace.c
@@ -344,8 +344,7 @@ 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) {
diff --git a/drivers/media/platform/timblogiw.c b/drivers/media/platform/timblogiw.c
index 02194c0..8ae630c 100644
--- a/drivers/media/platform/timblogiw.c
+++ b/drivers/media/platform/timblogiw.c
@@ -566,7 +566,7 @@ 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);
diff --git a/drivers/misc/carma/carma-fpga.c b/drivers/misc/carma/carma-fpga.c
index 6b43f8c..ae4289b 100644
--- a/drivers/misc/carma/carma-fpga.c
+++ b/drivers/misc/carma/carma-fpga.c
@@ -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;
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 9144557..5e1f88f 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -238,8 +238,7 @@ 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)) {
diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c
index 679ede8..fdb98f0 100644
--- a/drivers/mtd/nand/fsmc_nand.c
+++ b/drivers/mtd/nand/fsmc_nand.c
@@ -569,8 +569,6 @@ 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;
diff --git a/drivers/net/ethernet/micrel/ks8842.c b/drivers/net/ethernet/micrel/ks8842.c
index 24fb049..f657760 100644
--- a/drivers/net/ethernet/micrel/ks8842.c
+++ b/drivers/net/ethernet/micrel/ks8842.c
@@ -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;
diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index b9f0192..6d207af 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -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;
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index af3b941..b1269ed 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -169,12 +169,6 @@ 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
@@ -186,14 +180,10 @@ 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),
};
/**
--
1.8.0
--
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