Signed-off-by: Dmitry Kalinkin <dmitry.kalin...@gmail.com>
Cc: Igor Alekseev <igor.aleks...@itep.ru>
---
drivers/vme/bridges/vme_ca91cx42.c | 15 +++++++++++++--
drivers/vme/bridges/vme_tsi148.c | 15 +++++++++++++--
2 files changed, 26 insertions(+), 4 deletions(-)
diff --git a/drivers/vme/bridges/vme_ca91cx42.c
b/drivers/vme/bridges/vme_ca91cx42.c
index 18078ec..ffb8e91 100644
--- a/drivers/vme/bridges/vme_ca91cx42.c
+++ b/drivers/vme/bridges/vme_ca91cx42.c
@@ -1192,7 +1192,7 @@ static int ca91cx42_dma_list_exec(struct vme_dma_list
*list)
{
struct vme_dma_resource *ctrlr;
struct ca91cx42_dma_entry *entry;
- int retval = 0;
+ int retval;
dma_addr_t bus_addr;
u32 val;
struct device *dev;
@@ -1245,9 +1245,19 @@ static int ca91cx42_dma_list_exec(struct vme_dma_list
*list)
iowrite32(val, bridge->base + DGCS);
- wait_event_interruptible(bridge->dma_queue,
+ retval = wait_event_interruptible(bridge->dma_queue,
ca91cx42_dma_busy(ctrlr->parent));
+ if (retval) {
+ val = ioread32(bridge->base + DGCS);
+ iowrite32(val | CA91CX42_DGCS_STOP_REQ, bridge->base + DGCS);
+ /* Wait for the operation to abort */
+ wait_event(bridge->dma_queue,
+ ca91cx42_dma_busy(ctrlr->parent));
+ retval = -EINTR;
+ goto exit;
+ }
+
/*
* Read status register, this register is valid until we kick off a
* new transfer.
@@ -1261,6 +1271,7 @@ static int ca91cx42_dma_list_exec(struct vme_dma_list
*list)
val = ioread32(bridge->base + DCTL);
}
+exit:
/* Remove list from running list */
mutex_lock(&ctrlr->mtx);
list_del(&list->list);
diff --git a/drivers/vme/bridges/vme_tsi148.c b/drivers/vme/bridges/vme_tsi148.c
index 03b0755..f6c455e 100644
--- a/drivers/vme/bridges/vme_tsi148.c
+++ b/drivers/vme/bridges/vme_tsi148.c
@@ -1892,7 +1892,7 @@ static int tsi148_dma_busy(struct vme_bridge
*tsi148_bridge, int channel)
static int tsi148_dma_list_exec(struct vme_dma_list *list)
{
struct vme_dma_resource *ctrlr;
- int channel, retval = 0;
+ int channel, retval;
struct tsi148_dma_entry *entry;
u32 bus_addr_high, bus_addr_low;
u32 val, dctlreg = 0;
@@ -1942,9 +1942,19 @@ static int tsi148_dma_list_exec(struct vme_dma_list
*list)
iowrite32be(dctlreg | TSI148_LCSR_DCTL_DGO, bridge->base +
TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DCTL);
- wait_event_interruptible(bridge->dma_queue[channel],
+ retval = wait_event_interruptible(bridge->dma_queue[channel],
tsi148_dma_busy(ctrlr->parent, channel));
+ if (retval) {
+ iowrite32be(dctlreg | TSI148_LCSR_DCTL_ABT, bridge->base +
+ TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DCTL);
+ /* Wait for the operation to abort */
+ wait_event(bridge->dma_queue[channel],
+ tsi148_dma_busy(ctrlr->parent, channel));
+ retval = -EINTR;
+ goto exit;
+ }
+
/*
* Read status register, this register is valid until we kick off a
* new transfer.
@@ -1957,6 +1967,7 @@ static int tsi148_dma_list_exec(struct vme_dma_list *list)
retval = -EIO;
}
+exit:
/* Remove list from running list */
mutex_lock(&ctrlr->mtx);
list_del(&list->list);
--
1.8.3.1
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