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path: root/drivers/dma/ppc4xx/adma.c
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Diffstat (limited to 'drivers/dma/ppc4xx/adma.c')
-rw-r--r--drivers/dma/ppc4xx/adma.c49
1 files changed, 9 insertions, 40 deletions
diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index fc457a7e883..ced98826684 100644
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -46,6 +46,7 @@
#include <asm/dcr.h>
#include <asm/dcr-regs.h>
#include "adma.h"
+#include "../dmaengine.h"
enum ppc_adma_init_code {
PPC_ADMA_INIT_OK = 0,
@@ -1930,7 +1931,7 @@ static void __ppc440spe_adma_slot_cleanup(struct ppc440spe_adma_chan *chan)
if (end_of_chain && slot_cnt) {
/* Should wait for ZeroSum completion */
if (cookie > 0)
- chan->completed_cookie = cookie;
+ chan->common.completed_cookie = cookie;
return;
}
@@ -1960,7 +1961,7 @@ static void __ppc440spe_adma_slot_cleanup(struct ppc440spe_adma_chan *chan)
BUG_ON(!seen_current);
if (cookie > 0) {
- chan->completed_cookie = cookie;
+ chan->common.completed_cookie = cookie;
pr_debug("\tcompleted cookie %d\n", cookie);
}
@@ -2150,22 +2151,6 @@ static int ppc440spe_adma_alloc_chan_resources(struct dma_chan *chan)
}
/**
- * ppc440spe_desc_assign_cookie - assign a cookie
- */
-static dma_cookie_t ppc440spe_desc_assign_cookie(
- struct ppc440spe_adma_chan *chan,
- struct ppc440spe_adma_desc_slot *desc)
-{
- dma_cookie_t cookie = chan->common.cookie;
-
- cookie++;
- if (cookie < 0)
- cookie = 1;
- chan->common.cookie = desc->async_tx.cookie = cookie;
- return cookie;
-}
-
-/**
* ppc440spe_rxor_set_region_data -
*/
static void ppc440spe_rxor_set_region(struct ppc440spe_adma_desc_slot *desc,
@@ -2235,8 +2220,7 @@ static dma_cookie_t ppc440spe_adma_tx_submit(struct dma_async_tx_descriptor *tx)
slots_per_op = group_start->slots_per_op;
spin_lock_bh(&chan->lock);
-
- cookie = ppc440spe_desc_assign_cookie(chan, sw_desc);
+ cookie = dma_cookie_assign(tx);
if (unlikely(list_empty(&chan->chain))) {
/* first peer */
@@ -3944,28 +3928,16 @@ static enum dma_status ppc440spe_adma_tx_status(struct dma_chan *chan,
dma_cookie_t cookie, struct dma_tx_state *txstate)
{
struct ppc440spe_adma_chan *ppc440spe_chan;
- dma_cookie_t last_used;
- dma_cookie_t last_complete;
enum dma_status ret;
ppc440spe_chan = to_ppc440spe_adma_chan(chan);
- last_used = chan->cookie;
- last_complete = ppc440spe_chan->completed_cookie;
-
- dma_set_tx_state(txstate, last_complete, last_used, 0);
-
- ret = dma_async_is_complete(cookie, last_complete, last_used);
+ ret = dma_cookie_status(chan, cookie, txstate);
if (ret == DMA_SUCCESS)
return ret;
ppc440spe_adma_slot_cleanup(ppc440spe_chan);
- last_used = chan->cookie;
- last_complete = ppc440spe_chan->completed_cookie;
-
- dma_set_tx_state(txstate, last_complete, last_used, 0);
-
- return dma_async_is_complete(cookie, last_complete, last_used);
+ return dma_cookie_status(chan, cookie, txstate);
}
/**
@@ -4050,16 +4022,12 @@ static void ppc440spe_chan_start_null_xor(struct ppc440spe_adma_chan *chan)
async_tx_ack(&sw_desc->async_tx);
ppc440spe_desc_init_null_xor(group_start);
- cookie = chan->common.cookie;
- cookie++;
- if (cookie <= 1)
- cookie = 2;
+ cookie = dma_cookie_assign(&sw_desc->async_tx);
/* initialize the completed cookie to be less than
* the most recently used cookie
*/
- chan->completed_cookie = cookie - 1;
- chan->common.cookie = sw_desc->async_tx.cookie = cookie;
+ chan->common.completed_cookie = cookie - 1;
/* channel should not be busy */
BUG_ON(ppc440spe_chan_is_busy(chan));
@@ -4529,6 +4497,7 @@ static int __devinit ppc440spe_adma_probe(struct platform_device *ofdev)
INIT_LIST_HEAD(&chan->all_slots);
chan->device = adev;
chan->common.device = &adev->common;
+ dma_cookie_init(&chan->common);
list_add_tail(&chan->common.device_node, &adev->common.channels);
tasklet_init(&chan->irq_tasklet, ppc440spe_adma_tasklet,
(unsigned long)chan);