Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
Merge commit. Changes below are compared with the first parent: 8019aa94.
Changes
12 files changed · +261 −172
| File | Status | Add | Del | Content |
|---|---|---|---|---|
| crypto/async_tx/async_memcpy.c | modified | +1 | −1 | View file |
| crypto/async_tx/async_tx.c | modified | +165 | −37 | View file |
| crypto/async_tx/async_xor.c | modified | +1 | −1 | View file |
| drivers/dma/Kconfig | modified | +0 | −8 | View file |
| drivers/dma/dmaengine.c | modified | +6 | −9 | View file |
| drivers/dma/fsldma.c | modified | +29 | −28 | View file |
| drivers/dma/ioat_dma.c | modified | +12 | −24 | View file |
| drivers/dma/iop-adma.c | modified | +26 | −34 | View file |
| include/asm-arm/arch-iop13xx/adma.h | modified | +0 | −5 | View file |
| include/asm-arm/hardware/iop3xx-adma.h | modified | +0 | −8 | View file |
| include/asm-arm/hardware/iop_adma.h | modified | +0 | −2 | View file |
| include/linux/dmaengine.h | modified | +21 | −15 | View file |
Only the first 600 diff lines are shown. Download the complete patch.
crypto/async_tx/async_memcpy.c
View filediff --git a/crypto/async_tx/async_memcpy.c b/crypto/async_tx/async_memcpy.c
index 84caa4e..a5eda80 100644
--- a/crypto/async_tx/async_memcpy.c
+++ b/crypto/async_tx/async_memcpy.c
@@ -77,7 +77,7 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset,
/* if ack is already set then we cannot be sure
* we are referring to the correct operation
*/
- BUG_ON(depend_tx->ack);
+ BUG_ON(async_tx_test_ack(depend_tx));
if (dma_wait_for_async_tx(depend_tx) == DMA_ERROR)
panic("%s: DMA_ERROR waiting for depend_tx\n",
__func__);
crypto/async_tx/async_tx.c
View filediff --git a/crypto/async_tx/async_tx.c b/crypto/async_tx/async_tx.c
index 2be3bae..c6e772f 100644
--- a/crypto/async_tx/async_tx.c
+++ b/crypto/async_tx/async_tx.c
@@ -89,13 +89,19 @@ dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx)
iter = tx;
/* find the root of the unsubmitted dependency chain */
- while (iter->cookie == -EBUSY) {
+ do {
parent = iter->parent;
- if (parent && parent->cookie == -EBUSY)
- iter = iter->parent;
- else
+ if (!parent)
break;
- }
+ else
+ iter = parent;
+ } while (parent);
+
+ /* there is a small window for ->parent == NULL and
+ * ->cookie == -EBUSY
+ */
+ while (iter->cookie == -EBUSY)
+ cpu_relax();
status = dma_sync_wait(iter->chan, iter->cookie);
} while (status == DMA_IN_PROGRESS || (iter != tx));
@@ -111,24 +117,33 @@ EXPORT_SYMBOL_GPL(dma_wait_for_async_tx);
void
async_tx_run_dependencies(struct dma_async_tx_descriptor *tx)
{
- struct dma_async_tx_descriptor *dep_tx, *_dep_tx;
- struct dma_device *dev;
+ struct dma_async_tx_descriptor *next = tx->next;
struct dma_chan *chan;
- list_for_each_entry_safe(dep_tx, _dep_tx, &tx->depend_list,
- depend_node) {
- chan = dep_tx->chan;
- dev = chan->device;
- /* we can't depend on ourselves */
- BUG_ON(chan == tx->chan);
- list_del(&dep_tx->depend_node);
- tx->tx_submit(dep_tx);
-
- /* we need to poke the engine as client code does not
- * know about dependency submission events
- */
- dev->device_issue_pending(chan);
+ if (!next)
+ return;
+
+ tx->next = NULL;
+ chan = next->chan;
+
+ /* keep submitting up until a channel switch is detected
+ * in that case we will be called again as a result of
+ * processing the interrupt from async_tx_channel_switch
+ */
+ while (next && next->chan == chan) {
+ struct dma_async_tx_descriptor *_next;
+
+ spin_lock_bh(&next->lock);
+ next->parent = NULL;
+ _next = next->next;
+ next->next = NULL;
+ spin_unlock_bh(&next->lock);
+
+ next->tx_submit(next);
+ next = _next;
}
+
+ chan->device->device_issue_pending(chan);
}
EXPORT_SYMBOL_GPL(async_tx_run_dependencies);
@@ -397,6 +412,92 @@ static void __exit async_tx_exit(void)
}
#endif
+
+/**
+ * async_tx_channel_switch - queue an interrupt descriptor with a dependency
+ * pre-attached.
+ * @depend_tx: the operation that must finish before the new operation runs
+ * @tx: the new operation
+ */
+static void
+async_tx_channel_switch(struct dma_async_tx_descriptor *depend_tx,
+ struct dma_async_tx_descriptor *tx)
+{
+ struct dma_chan *chan;
+ struct dma_device *device;
+ struct dma_async_tx_descriptor *intr_tx = (void *) ~0;
+
+ /* first check to see if we can still append to depend_tx */
+ spin_lock_bh(&depend_tx->lock);
+ if (depend_tx->parent && depend_tx->chan == tx->chan) {
+ tx->parent = depend_tx;
+ depend_tx->next = tx;
+ intr_tx = NULL;
+ }
+ spin_unlock_bh(&depend_tx->lock);
+
+ if (!intr_tx)
+ return;
+
+ chan = depend_tx->chan;
+ device = chan->device;
+
+ /* see if we can schedule an interrupt
+ * otherwise poll for completion
+ */
+ if (dma_has_cap(DMA_INTERRUPT, device->cap_mask))
+ intr_tx = device->device_prep_dma_interrupt(chan, 0);
+ else
+ intr_tx = NULL;
+
+ if (intr_tx) {
+ intr_tx->callback = NULL;
+ intr_tx->callback_param = NULL;
+ tx->parent = intr_tx;
+ /* safe to set ->next outside the lock since we know we are
+ * not submitted yet
+ */
+ intr_tx->next = tx;
+
+ /* check if we need to append */
+ spin_lock_bh(&depend_tx->lock);
+ if (depend_tx->parent) {
+ intr_tx->parent = depend_tx;
+ depend_tx->next = intr_tx;
+ async_tx_ack(intr_tx);
+ intr_tx = NULL;
+ }
+ spin_unlock_bh(&depend_tx->lock);
+
+ if (intr_tx) {
+ intr_tx->parent = NULL;
+ intr_tx->tx_submit(intr_tx);
+ async_tx_ack(intr_tx);
+ }
+ } else {
+ if (dma_wait_for_async_tx(depend_tx) == DMA_ERROR)
+ panic("%s: DMA_ERROR waiting for depend_tx\n",
+ __func__);
+ tx->tx_submit(tx);
+ }
+}
+
+
+/**
+ * submit_disposition - while holding depend_tx->lock we must avoid submitting
+ * new operations to prevent a circular locking dependency with
+ * drivers that already hold a channel lock when calling
+ * async_tx_run_dependencies.
+ * @ASYNC_TX_SUBMITTED: we were able to append the new operation under the lock
+ * @ASYNC_TX_CHANNEL_SWITCH: when the lock is dropped schedule a channel switch
+ * @ASYNC_TX_DIRECT_SUBMIT: when the lock is dropped submit directly
+ */
+enum submit_disposition {
+ ASYNC_TX_SUBMITTED,
+ ASYNC_TX_CHANNEL_SWITCH,
+ ASYNC_TX_DIRECT_SUBMIT,
+};
+
void
async_tx_submit(struct dma_chan *chan, struct dma_async_tx_descriptor *tx,
enum async_tx_flags flags, struct dma_async_tx_descriptor *depend_tx,
@@ -405,28 +506,55 @@ async_tx_submit(struct dma_chan *chan, struct dma_async_tx_descriptor *tx,
tx->callback = cb_fn;
tx->callback_param = cb_param;
- /* set this new tx to run after depend_tx if:
- * 1/ a dependency exists (depend_tx is !NULL)
- * 2/ the tx can not be submitted to the current channel
- */
- if (depend_tx && depend_tx->chan != chan) {
- /* if ack is already set then we cannot be sure
+ if (depend_tx) {
+ enum submit_disposition s;
+
+ /* sanity check the dependency chain:
+ * 1/ if ack is already set then we cannot be sure
* we are referring to the correct operation
+ * 2/ dependencies are 1:1 i.e. two transactions can
+ * not depend on the same parent
*/
- BUG_ON(depend_tx->ack);
+ BUG_ON(async_tx_test_ack(depend_tx) || depend_tx->next ||
+ tx->parent);
- tx->parent = depend_tx;
+ /* the lock prevents async_tx_run_dependencies from missing
+ * the setting of ->next when ->parent != NULL
+ */
spin_lock_bh(&depend_tx->lock);
- list_add_tail(&tx->depend_node, &depend_tx->depend_list);
- if (depend_tx->cookie == 0) {
- struct dma_chan *dep_chan = depend_tx->chan;
- struct dma_device *dep_dev = dep_chan->device;
- dep_dev->device_dependency_added(dep_chan);
+ if (depend_tx->parent) {
+ /* we have a parent so we can not submit directly
+ * if we are staying on the same channel: append
+ * else: channel switch
+ */
+ if (depend_tx->chan == chan) {
+ tx->parent = depend_tx;
+ depend_tx->next = tx;
+ s = ASYNC_TX_SUBMITTED;
+ } else
+ s = ASYNC_TX_CHANNEL_SWITCH;
+ } else {
+ /* we do not have a parent so we may be able to submit
+ * directly if we are staying on the same channel
+ */
+ if (depend_tx->chan == chan)
+ s = ASYNC_TX_DIRECT_SUBMIT;
+ else
+ s = ASYNC_TX_CHANNEL_SWITCH;
}
spin_unlock_bh(&depend_tx->lock);
- /* schedule an interrupt to trigger the channel switch */
- async_trigger_callback(ASYNC_TX_ACK, depend_tx, NULL, NULL);
+ switch (s) {
+ case ASYNC_TX_SUBMITTED:
+ break;
+ case ASYNC_TX_CHANNEL_SWITCH:
+ async_tx_channel_switch(depend_tx, tx);
+ break;
+ case ASYNC_TX_DIRECT_SUBMIT:
+ tx->parent = NULL;
+ tx->tx_submit(tx);
+ break;
+ }
} else {
tx->parent = NULL;
tx->tx_submit(tx);
@@ -467,7 +595,7 @@ async_trigger_callback(enum async_tx_flags flags,
if (device && !dma_has_cap(DMA_INTERRUPT, device->cap_mask))
device = NULL;
- tx = device ? device->device_prep_dma_interrupt(chan) : NULL;
+ tx = device ? device->device_prep_dma_interrupt(chan, 0) : NULL;
} else
tx = NULL;
@@ -483,7 +611,7 @@ async_trigger_callback(enum async_tx_flags flags,
/* if ack is already set then we cannot be sure
* we are referring to the correct operation
*/
- BUG_ON(depend_tx->ack);
+ BUG_ON(async_tx_test_ack(depend_tx));
if (dma_wait_for_async_tx(depend_tx) == DMA_ERROR)
panic("%s: DMA_ERROR waiting for depend_tx\n",
__func__);
crypto/async_tx/async_xor.c
View filediff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c
index 1c445c7..3a0dddc 100644
--- a/crypto/async_tx/async_xor.c
+++ b/crypto/async_tx/async_xor.c
@@ -191,7 +191,7 @@ async_xor(struct page *dest, struct page **src_list, unsigned int offset,
/* if ack is already set then we cannot be sure
* we are referring to the correct operation
*/
- BUG_ON(depend_tx->ack);
+ BUG_ON(async_tx_test_ack(depend_tx));
if (dma_wait_for_async_tx(depend_tx) ==
DMA_ERROR)
panic("%s: DMA_ERROR waiting for "
drivers/dma/Kconfig
View filediff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 27340a7..6239c3d 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -46,14 +46,6 @@ config FSL_DMA
MPC8560/40, MPC8555, MPC8548 and MPC8641 processors.
The MPC8349, MPC8360 is also supported.
-config FSL_DMA_SELFTEST
- bool "Enable the self test for each DMA channel"
- depends on FSL_DMA
- default y
- ---help---
- Enable the self test for each DMA channel. A self test will be
- performed after the channel probed to ensure the DMA works well.
-
config DMA_ENGINE
bool
drivers/dma/dmaengine.c
View filediff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 8db0e7f..d6dc70f 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -362,7 +362,6 @@ int dma_async_device_register(struct dma_device *device)
BUG_ON(!device->device_alloc_chan_resources);
BUG_ON(!device->device_free_chan_resources);
- BUG_ON(!device->device_dependency_added);
BUG_ON(!device->device_is_tx_complete);
BUG_ON(!device->device_issue_pending);
BUG_ON(!device->dev);
@@ -479,7 +478,8 @@ 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);
- tx = dev->device_prep_dma_memcpy(chan, dma_dest, dma_src, len, 0);
+ tx = dev->device_prep_dma_memcpy(chan, dma_dest, dma_src, len,
+ DMA_CTRL_ACK);
if (!tx) {
dma_unmap_single(dev->dev, dma_src, len, DMA_TO_DEVICE);
@@ -487,7 +487,6 @@ dma_async_memcpy_buf_to_buf(struct dma_chan *chan, void *dest,
return -ENOMEM;
}
- tx->ack = 1;
tx->callback = NULL;
cookie = tx->tx_submit(tx);
@@ -525,7 +524,8 @@ 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);
- tx = dev->device_prep_dma_memcpy(chan, dma_dest, dma_src, len, 0);
+ tx = dev->device_prep_dma_memcpy(chan, dma_dest, dma_src, len,
+ DMA_CTRL_ACK);
if (!tx) {
dma_unmap_single(dev->dev, dma_src, len, DMA_TO_DEVICE);
@@ -533,7 +533,6 @@ dma_async_memcpy_buf_to_pg(struct dma_chan *chan, struct page *page,
return -ENOMEM;
}
- tx->ack = 1;
tx->callback = NULL;
cookie = tx->tx_submit(tx);
@@ -574,7 +573,8 @@ 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);
- tx = dev->device_prep_dma_memcpy(chan, dma_dest, dma_src, len, 0);
+ tx = dev->device_prep_dma_memcpy(chan, dma_dest, dma_src, len,
+ DMA_CTRL_ACK);
if (!tx) {
dma_unmap_page(dev->dev, dma_src, len, DMA_TO_DEVICE);
@@ -582,7 +582,6 @@ dma_async_memcpy_pg_to_pg(struct dma_chan *chan, struct page *dest_pg,
return -ENOMEM;
}
- tx->ack = 1;
tx->callback = NULL;
cookie = tx->tx_submit(tx);
@@ -600,8 +599,6 @@ void dma_async_tx_descriptor_init(struct dma_async_tx_descriptor *tx,
{
tx->chan = chan;
spin_lock_init(&tx->lock);
- INIT_LIST_HEAD(&tx->depend_node);
- INIT_LIST_HEAD(&tx->depend_list);
}
EXPORT_SYMBOL(dma_async_tx_descriptor_init);
drivers/dma/fsldma.c
View filediff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index df16368..054eabf 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -412,7 +412,7 @@ static void fsl_dma_free_chan_resources(struct dma_chan *chan)
}
static struct dma_async_tx_descriptor *
-fsl_dma_prep_interrupt(struct dma_chan *chan)
+fsl_dma_prep_interrupt(struct dma_chan *chan, unsigned long flags)
{
struct fsl_dma_chan *fsl_chan;
struct fsl_desc_sw *new;
@@ -429,7 +429,7 @@ fsl_dma_prep_interrupt(struct dma_chan *chan)
}
new->async_tx.cookie = -EBUSY;
- new->async_tx.ack = 0;
+ new->async_tx.flags = flags;
/* Insert the link descriptor to the LD ring */
list_add_tail(&new->node, &new->async_tx.tx_list);
@@ -482,7 +482,7 @@ static struct dma_async_tx_descriptor *fsl_dma_prep_memcpy(
set_desc_next(fsl_chan, &prev->hw, new->async_tx.phys);
new->async_tx.cookie = 0;
- new->async_tx.ack = 1;
+ async_tx_ack(&new->async_tx);
prev = new;
len -= copy;
@@ -493,7 +493,7 @@ static struct dma_async_tx_descriptor *fsl_dma_prep_memcpy(
list_add_tail(&new->node, &first->async_tx.tx_list);
} while (len);
- new->async_tx.ack = 0; /* client is in control of this ack */
+ new->async_tx.flags = flags; /* client is in control of this ack */
new->async_tx.cookie = -EBUSY;
/* Set End-of-link to the last link descriptor of new list*/
@@ -658,13 +658,6 @@ static void fsl_dma_memcpy_issue_pending(struct dma_chan *chan)
fsl_chan_xfer_ld_queue(fsl_chan);
}
-static void fsl_dma_dependency_added(struct dma_chan *chan)
-{
- struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan);
-
- fsl_chan_ld_cleanup(fsl_chan);
-}
-
/**
* fsl_dma_is_complete - Determine the DMA status
* @fsl_chan : Freescale DMA channel
@@ -696,6 +689,8 @@ static irqreturn_t fsl_dma_chan_do_interrupt(int irq, void *data)
{
struct fsl_dma_chan *fsl_chan = (struct fsl_dma_chan *)data;
u32 stat;
+ int update_cookie = 0;
+ int xfer_ld_q = 0;
stat = get_sr(fsl_chan);
dev_dbg(fsl_chan->dev, "event: channel %d, stat = 0x%x\n",
@@ -720,8 +715,8 @@ static irqreturn_t fsl_dma_chan_do_interrupt(int irq, void *data)
* Now, update the completed cookie, and continue the
* next uncompleted transfer.
*/
- fsl_dma_update_completed_cookie(fsl_chan);
- fsl_chan_xfer_ld_queue(fsl_chan);
+ update_cookie = 1;
+ xfer_ld_q = 1;
}
stat &= ~FSL_DMA_SR_PE;
}
@@ -734,19 +729,33 @@ static irqreturn_t fsl_dma_chan_do_interrupt(int irq, void *data)
dev_dbg(fsl_chan->dev, "event: clndar %p, nlndar %p\n",
(void *)get_cdar(fsl_chan), (void *)get_ndar(fsl_chan));
stat &= ~FSL_DMA_SR_EOSI;
- fsl_dma_update_completed_cookie(fsl_chan);
+ update_cookie = 1;
+ }
+
+ /* For MPC8349, EOCDI event need to update cookie
+ * and start the next transfer if it exist.
+ */
+ if (stat & FSL_DMA_SR_EOCDI) {
+ dev_dbg(fsl_chan->dev, "event: End-of-Chain link INT\n");
+ stat &= ~FSL_DMA_SR_EOCDI;
+ update_cookie = 1;
+ xfer_ld_q = 1;
}
/* If it current transfer is the end-of-transfer,
* we should clear the Channel Start bit for
* prepare next transfer.
*/
- if (stat & (FSL_DMA_SR_EOLNI | FSL_DMA_SR_EOCDI)) {
+ if (stat & FSL_DMA_SR_EOLNI) {
dev_dbg(fsl_chan->dev, "event: End-of-link INT\n");
stat &= ~FSL_DMA_SR_EOLNI;
- fsl_chan_xfer_ld_queue(fsl_chan);
+ xfer_ld_q = 1;
}
+ if (update_cookie)
+ fsl_dma_update_completed_cookie(fsl_chan);
+ if (xfer_ld_q)
+ fsl_chan_xfer_ld_queue(fsl_chan);
if (stat)
dev_dbg(fsl_chan->dev, "event: unhandled sr 0x%02x\n",
stat);
@@ -776,15 +785,13 @@ static void dma_do_tasklet(unsigned long data)
fsl_chan_ld_cleanup(fsl_chan);
}
-#ifdef FSL_DMA_CALLBACKTEST
-static void fsl_dma_callback_test(struct fsl_dma_chan *fsl_chan)
+static void fsl_dma_callback_test(void *param)
{
+ struct fsl_dma_chan *fsl_chan = param;
if (fsl_chan)
- dev_info(fsl_chan->dev, "selftest: callback is ok!\n");
+ dev_dbg(fsl_chan->dev, "selftest: callback is ok!\n");
}
-#endif
-#ifdef CONFIG_FSL_DMA_SELFTEST
static int fsl_dma_self_test(struct fsl_dma_chan *fsl_chan)
{
struct dma_chan *chan;
@@ -867,7 +874,7 @@ static int fsl_dma_self_test(struct fsl_dma_chan *fsl_chan)
async_tx_ack(tx3);
/* Interrupt tx test */
- tx1 = fsl_dma_prep_interrupt(chan);
+ tx1 = fsl_dma_prep_interrupt(chan, 0);
async_tx_ack(tx1);
cookie = fsl_dma_tx_submit(tx1);
@@ -875,13 +882,11 @@ static int fsl_dma_self_test(struct fsl_dma_chan *fsl_chan)
cookie = fsl_dma_tx_submit(tx3);
cookie = fsl_dma_tx_submit(tx2);
-#ifdef FSL_DMA_CALLBACKTEST
if (dma_has_cap(DMA_INTERRUPT, ((struct fsl_dma_device *)
dev_get_drvdata(fsl_chan->dev->parent))->common.cap_mask)) {
tx3->callback = fsl_dma_callback_test;
tx3->callback_param = fsl_chan;
}
-#endif
fsl_dma_memcpy_issue_pending(chan);
msleep(2);
@@ -906,7 +911,6 @@ out:
kfree(src);
return err;
}
-#endif
static int __devinit of_fsl_dma_chan_probe(struct of_device *dev,
const struct of_device_id *match)
@@ -997,11 +1001,9 @@ static int __devinit of_fsl_dma_chan_probe(struct of_device *dev,
}
}
-#ifdef CONFIG_FSL_DMA_SELFTEST
err = fsl_dma_self_test(new_fsl_chan);
if (err)
goto err;
-#endif
dev_info(&dev->dev, "#%d (%s), irq %d\n", new_fsl_chan->id,
match->compatible, new_fsl_chan->irq);
@@ -1080,7 +1082,6 @@ static int __devinit of_fsl_dma_probe(struct of_device *dev,
fdev->common.device_prep_dma_memcpy = fsl_dma_prep_memcpy;
fdev->common.device_is_tx_complete = fsl_dma_is_complete;
fdev->common.device_issue_pending = fsl_dma_memcpy_issue_pending;
- fdev->common.device_dependency_added = fsl_dma_dependency_added;
fdev->common.dev = &dev->dev;
irq = irq_of_parse_and_map(dev->node, 0);
drivers/dma/ioat_dma.c
View filediff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c
index 4017d9e..318e8a2 100644
--- a/drivers/dma/ioat_dma.c
+++ b/drivers/dma/ioat_dma.c
@@ -212,14 +212,14 @@ static dma_cookie_t ioat1_tx_submit(struct dma_async_tx_descriptor *tx)
u32 copy;
size_t len;
dma_addr_t src, dst;
- int orig_ack;
+ unsigned long orig_flags;
unsigned int desc_count = 0;
/* src and dest and len are stored in the initial descriptor */
len = first->len;
src = first->src;
dst = first->dst;
- orig_ack = first->async_tx.ack;
+ orig_flags = first->async_tx.flags;
new = first;
spin_lock_bh(&ioat_chan->desc_lock);
@@ -228,7 +228,7 @@ static dma_cookie_t ioat1_tx_submit(struct dma_async_tx_descriptor *tx)
do {
copy = min_t(size_t, len, ioat_chan->xfercap);
- new->async_tx.ack = 1;
+ async_tx_ack(&new->async_tx);
hw = new->hw;
hw->size = copy;
@@ -264,7 +264,7 @@ static dma_cookie_t ioat1_tx_submit(struct dma_async_tx_descriptor *tx)
}
new->tx_cnt = desc_count;
- new->async_tx.ack = orig_ack; /* client is in control of this ack */
+ new->async_tx.flags = orig_flags; /* client is in control of this ack */
/* store the original values for use in later cleanup */
if (new != first) {
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drivers/dma/iop-adma.c
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include/asm-arm/arch-iop13xx/adma.h
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include/asm-arm/hardware/iop3xx-adma.h
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include/asm-arm/hardware/iop_adma.h
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include/linux/dmaengine.h
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