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path: root/drivers/dma/iop-adma.c
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Diffstat (limited to 'drivers/dma/iop-adma.c')
-rw-r--r--drivers/dma/iop-adma.c60
1 files changed, 26 insertions, 34 deletions
diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index f82b0906d466..762b729672e0 100644
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -63,7 +63,6 @@ iop_adma_run_tx_complete_actions(struct iop_adma_desc_slot *desc,
struct iop_adma_chan *iop_chan, dma_cookie_t cookie)
{
BUG_ON(desc->async_tx.cookie < 0);
- spin_lock_bh(&desc->async_tx.lock);
if (desc->async_tx.cookie > 0) {
cookie = desc->async_tx.cookie;
desc->async_tx.cookie = 0;
@@ -101,7 +100,6 @@ iop_adma_run_tx_complete_actions(struct iop_adma_desc_slot *desc,
/* run dependent operations */
async_tx_run_dependencies(&desc->async_tx);
- spin_unlock_bh(&desc->async_tx.lock);
return cookie;
}
@@ -113,7 +111,7 @@ iop_adma_clean_slot(struct iop_adma_desc_slot *desc,
/* the client is allowed to attach dependent operations
* until 'ack' is set
*/
- if (!desc->async_tx.ack)
+ if (!async_tx_test_ack(&desc->async_tx))
return 0;
/* leave the last descriptor in the chain
@@ -150,7 +148,7 @@ static void __iop_adma_slot_cleanup(struct iop_adma_chan *iop_chan)
"this_desc: %#x next_desc: %#x ack: %d\n",
iter->async_tx.cookie, iter->idx, busy,
iter->async_tx.phys, iop_desc_get_next_desc(iter),
- iter->async_tx.ack);
+ async_tx_test_ack(&iter->async_tx));
prefetch(_iter);
prefetch(&_iter->async_tx);
@@ -257,8 +255,6 @@ static void __iop_adma_slot_cleanup(struct iop_adma_chan *iop_chan)
BUG_ON(!seen_current);
- iop_chan_idle(busy, iop_chan);
-
if (cookie > 0) {
iop_chan->completed_cookie = cookie;
pr_debug("\tcompleted cookie %d\n", cookie);
@@ -275,8 +271,11 @@ iop_adma_slot_cleanup(struct iop_adma_chan *iop_chan)
static void iop_adma_tasklet(unsigned long data)
{
- struct iop_adma_chan *chan = (struct iop_adma_chan *) data;
- __iop_adma_slot_cleanup(chan);
+ struct iop_adma_chan *iop_chan = (struct iop_adma_chan *) data;
+
+ spin_lock(&iop_chan->lock);
+ __iop_adma_slot_cleanup(iop_chan);
+ spin_unlock(&iop_chan->lock);
}
static struct iop_adma_desc_slot *
@@ -339,9 +338,7 @@ retry:
/* pre-ack all but the last descriptor */
if (num_slots != slots_per_op)
- iter->async_tx.ack = 1;
- else
- iter->async_tx.ack = 0;
+ async_tx_ack(&iter->async_tx);
list_add_tail(&iter->chain_node, &chain);
alloc_tail = iter;
@@ -514,7 +511,7 @@ static int iop_adma_alloc_chan_resources(struct dma_chan *chan)
}
static struct dma_async_tx_descriptor *
-iop_adma_prep_dma_interrupt(struct dma_chan *chan)
+iop_adma_prep_dma_interrupt(struct dma_chan *chan, unsigned long flags)
{
struct iop_adma_chan *iop_chan = to_iop_adma_chan(chan);
struct iop_adma_desc_slot *sw_desc, *grp_start;
@@ -529,6 +526,7 @@ iop_adma_prep_dma_interrupt(struct dma_chan *chan)
grp_start = sw_desc->group_head;
iop_desc_init_interrupt(grp_start, iop_chan);
grp_start->unmap_len = 0;
+ sw_desc->async_tx.flags = flags;
}
spin_unlock_bh(&iop_chan->lock);
@@ -561,6 +559,7 @@ iop_adma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dma_dest,
iop_desc_set_memcpy_src_addr(grp_start, dma_src);
sw_desc->unmap_src_cnt = 1;
sw_desc->unmap_len = len;
+ sw_desc->async_tx.flags = flags;
}
spin_unlock_bh(&iop_chan->lock);
@@ -593,6 +592,7 @@ iop_adma_prep_dma_memset(struct dma_chan *chan, dma_addr_t dma_dest,
iop_desc_set_dest_addr(grp_start, iop_chan, dma_dest);
sw_desc->unmap_src_cnt = 1;
sw_desc->unmap_len = len;
+ sw_desc->async_tx.flags = flags;
}
spin_unlock_bh(&iop_chan->lock);
@@ -626,6 +626,7 @@ iop_adma_prep_dma_xor(struct dma_chan *chan, dma_addr_t dma_dest,
iop_desc_set_dest_addr(grp_start, iop_chan, dma_dest);
sw_desc->unmap_src_cnt = src_cnt;
sw_desc->unmap_len = len;
+ sw_desc->async_tx.flags = flags;
while (src_cnt--)
iop_desc_set_xor_src_addr(grp_start, src_cnt,
dma_src[src_cnt]);
@@ -662,6 +663,7 @@ iop_adma_prep_dma_zero_sum(struct dma_chan *chan, dma_addr_t *dma_src,
__func__, grp_start->xor_check_result);
sw_desc->unmap_src_cnt = src_cnt;
sw_desc->unmap_len = len;
+ sw_desc->async_tx.flags = flags;
while (src_cnt--)
iop_desc_set_zero_sum_src_addr(grp_start, src_cnt,
dma_src[src_cnt]);
@@ -671,12 +673,6 @@ iop_adma_prep_dma_zero_sum(struct dma_chan *chan, dma_addr_t *dma_src,
return sw_desc ? &sw_desc->async_tx : NULL;
}
-static void iop_adma_dependency_added(struct dma_chan *chan)
-{
- struct iop_adma_chan *iop_chan = to_iop_adma_chan(chan);
- tasklet_schedule(&iop_chan->irq_tasklet);
-}
-
static void iop_adma_free_chan_resources(struct dma_chan *chan)
{
struct iop_adma_chan *iop_chan = to_iop_adma_chan(chan);
@@ -854,11 +850,11 @@ static int __devinit iop_adma_memcpy_self_test(struct iop_adma_device *device)
src_dma = dma_map_single(dma_chan->device->dev, src,
IOP_ADMA_TEST_SIZE, DMA_TO_DEVICE);
tx = iop_adma_prep_dma_memcpy(dma_chan, dest_dma, src_dma,
- IOP_ADMA_TEST_SIZE, 1);
+ IOP_ADMA_TEST_SIZE,
+ DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
cookie = iop_adma_tx_submit(tx);
iop_adma_issue_pending(dma_chan);
- async_tx_ack(tx);
msleep(1);
if (iop_adma_is_complete(dma_chan, cookie, NULL, NULL) !=
@@ -954,11 +950,11 @@ iop_adma_xor_zero_sum_self_test(struct iop_adma_device *device)
dma_srcs[i] = dma_map_page(dma_chan->device->dev, xor_srcs[i],
0, PAGE_SIZE, DMA_TO_DEVICE);
tx = iop_adma_prep_dma_xor(dma_chan, dest_dma, dma_srcs,
- IOP_ADMA_NUM_SRC_TEST, PAGE_SIZE, 1);
+ IOP_ADMA_NUM_SRC_TEST, PAGE_SIZE,
+ DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
cookie = iop_adma_tx_submit(tx);
iop_adma_issue_pending(dma_chan);
- async_tx_ack(tx);
msleep(8);
if (iop_adma_is_complete(dma_chan, cookie, NULL, NULL) !=
@@ -1001,11 +997,11 @@ iop_adma_xor_zero_sum_self_test(struct iop_adma_device *device)
DMA_TO_DEVICE);
tx = iop_adma_prep_dma_zero_sum(dma_chan, dma_srcs,
IOP_ADMA_NUM_SRC_TEST + 1, PAGE_SIZE,
- &zero_sum_result, 1);
+ &zero_sum_result,
+ DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
cookie = iop_adma_tx_submit(tx);
iop_adma_issue_pending(dma_chan);
- async_tx_ack(tx);
msleep(8);
if (iop_adma_is_complete(dma_chan, cookie, NULL, NULL) != DMA_SUCCESS) {
@@ -1025,11 +1021,11 @@ iop_adma_xor_zero_sum_self_test(struct iop_adma_device *device)
/* test memset */
dma_addr = dma_map_page(dma_chan->device->dev, dest, 0,
PAGE_SIZE, DMA_FROM_DEVICE);
- tx = iop_adma_prep_dma_memset(dma_chan, dma_addr, 0, PAGE_SIZE, 1);
+ tx = iop_adma_prep_dma_memset(dma_chan, dma_addr, 0, PAGE_SIZE,
+ DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
cookie = iop_adma_tx_submit(tx);
iop_adma_issue_pending(dma_chan);
- async_tx_ack(tx);
msleep(8);
if (iop_adma_is_complete(dma_chan, cookie, NULL, NULL) != DMA_SUCCESS) {
@@ -1057,11 +1053,11 @@ iop_adma_xor_zero_sum_self_test(struct iop_adma_device *device)
DMA_TO_DEVICE);
tx = iop_adma_prep_dma_zero_sum(dma_chan, dma_srcs,
IOP_ADMA_NUM_SRC_TEST + 1, PAGE_SIZE,
- &zero_sum_result, 1);
+ &zero_sum_result,
+ DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
cookie = iop_adma_tx_submit(tx);
iop_adma_issue_pending(dma_chan);
- async_tx_ack(tx);
msleep(8);
if (iop_adma_is_complete(dma_chan, cookie, NULL, NULL) != DMA_SUCCESS) {
@@ -1177,7 +1173,6 @@ static int __devinit iop_adma_probe(struct platform_device *pdev)
dma_dev->device_free_chan_resources = iop_adma_free_chan_resources;
dma_dev->device_is_tx_complete = iop_adma_is_complete;
dma_dev->device_issue_pending = iop_adma_issue_pending;
- dma_dev->device_dependency_added = iop_adma_dependency_added;
dma_dev->dev = &pdev->dev;
/* set prep routines based on capability */
@@ -1232,9 +1227,6 @@ static int __devinit iop_adma_probe(struct platform_device *pdev)
}
spin_lock_init(&iop_chan->lock);
- init_timer(&iop_chan->cleanup_watchdog);
- iop_chan->cleanup_watchdog.data = (unsigned long) iop_chan;
- iop_chan->cleanup_watchdog.function = iop_adma_tasklet;
INIT_LIST_HEAD(&iop_chan->chain);
INIT_LIST_HEAD(&iop_chan->all_slots);
INIT_RCU_HEAD(&iop_chan->common.rcu);
@@ -1298,7 +1290,7 @@ static void iop_chan_start_null_memcpy(struct iop_adma_chan *iop_chan)
grp_start = sw_desc->group_head;
list_splice_init(&sw_desc->async_tx.tx_list, &iop_chan->chain);
- sw_desc->async_tx.ack = 1;
+ async_tx_ack(&sw_desc->async_tx);
iop_desc_init_memcpy(grp_start, 0);
iop_desc_set_byte_count(grp_start, iop_chan, 0);
iop_desc_set_dest_addr(grp_start, iop_chan, 0);
@@ -1354,7 +1346,7 @@ static void iop_chan_start_null_xor(struct iop_adma_chan *iop_chan)
if (sw_desc) {
grp_start = sw_desc->group_head;
list_splice_init(&sw_desc->async_tx.tx_list, &iop_chan->chain);
- sw_desc->async_tx.ack = 1;
+ async_tx_ack(&sw_desc->async_tx);
iop_desc_init_null_xor(grp_start, 2, 0);
iop_desc_set_byte_count(grp_start, iop_chan, 0);
iop_desc_set_dest_addr(grp_start, iop_chan, 0);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.