#include <linux/init.h>
#include <linux/module.h>
-#include <linux/async_tx.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/memory.h>
-#include <asm/plat-orion/mv_xor.h>
+#include <plat/mv_xor.h>
#include "mv_xor.h"
static void mv_xor_issue_pending(struct dma_chan *chan);
struct device *dev =
&mv_chan->device->pdev->dev;
u32 len = unmap->unmap_len;
- u32 src_cnt = unmap->unmap_src_cnt;
- dma_addr_t addr = mv_desc_get_dest_addr(unmap);
+ enum dma_ctrl_flags flags = desc->async_tx.flags;
+ u32 src_cnt;
+ dma_addr_t addr;
+ dma_addr_t dest;
+
+ src_cnt = unmap->unmap_src_cnt;
+ dest = mv_desc_get_dest_addr(unmap);
+ if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
+ enum dma_data_direction dir;
+
+ if (src_cnt > 1) /* is xor ? */
+ dir = DMA_BIDIRECTIONAL;
+ else
+ dir = DMA_FROM_DEVICE;
+ dma_unmap_page(dev, dest, len, dir);
+ }
- dma_unmap_page(dev, addr, len, DMA_FROM_DEVICE);
- while (src_cnt--) {
- addr = mv_desc_get_src_addr(unmap, src_cnt);
- dma_unmap_page(dev, addr, len, DMA_TO_DEVICE);
+ if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
+ while (src_cnt--) {
+ addr = mv_desc_get_src_addr(unmap,
+ src_cnt);
+ if (addr == dest)
+ continue;
+ dma_unmap_page(dev, addr, len,
+ DMA_TO_DEVICE);
+ }
}
desc->group_head = NULL;
}
}
/* run dependent operations */
- async_tx_run_dependencies(&desc->async_tx);
+ dma_run_dependencies(&desc->async_tx);
return cookie;
}
}
/* returns the number of allocated descriptors */
-static int mv_xor_alloc_chan_resources(struct dma_chan *chan,
- struct dma_client *client)
+static int mv_xor_alloc_chan_resources(struct dma_chan *chan)
{
char *hw_desc;
int idx;
slot->async_tx.tx_submit = mv_xor_tx_submit;
INIT_LIST_HEAD(&slot->chain_node);
INIT_LIST_HEAD(&slot->slot_node);
- INIT_LIST_HEAD(&slot->async_tx.tx_list);
hw_desc = (char *) mv_chan->device->dma_desc_pool;
slot->async_tx.phys =
(dma_addr_t) &hw_desc[idx * MV_XOR_SLOT_SIZE];
dma_chan = container_of(device->common.channels.next,
struct dma_chan,
device_node);
- if (mv_xor_alloc_chan_resources(dma_chan, NULL) < 1) {
+ if (mv_xor_alloc_chan_resources(dma_chan) < 1) {
err = -ENODEV;
goto out;
}
for (src_idx = 0; src_idx < MV_XOR_NUM_SRC_TEST; src_idx++) {
xor_srcs[src_idx] = alloc_page(GFP_KERNEL);
- if (!xor_srcs[src_idx])
- while (src_idx--) {
+ if (!xor_srcs[src_idx]) {
+ while (src_idx--)
__free_page(xor_srcs[src_idx]);
- return -ENOMEM;
- }
+ return -ENOMEM;
+ }
}
dest = alloc_page(GFP_KERNEL);
- if (!dest)
- while (src_idx--) {
+ if (!dest) {
+ while (src_idx--)
__free_page(xor_srcs[src_idx]);
- return -ENOMEM;
- }
+ return -ENOMEM;
+ }
/* Fill in src buffers */
for (src_idx = 0; src_idx < MV_XOR_NUM_SRC_TEST; src_idx++) {
dma_chan = container_of(device->common.channels.next,
struct dma_chan,
device_node);
- if (mv_xor_alloc_chan_resources(dma_chan, NULL) < 1) {
+ if (mv_xor_alloc_chan_resources(dma_chan) < 1) {
err = -ENODEV;
goto out;
}
INIT_LIST_HEAD(&mv_chan->chain);
INIT_LIST_HEAD(&mv_chan->completed_slots);
INIT_LIST_HEAD(&mv_chan->all_slots);
- INIT_RCU_HEAD(&mv_chan->common.rcu);
mv_chan->common.device = dma_dev;
list_add_tail(&mv_chan->common.device_node, &dma_dev->channels);
static struct platform_driver mv_xor_driver = {
.probe = mv_xor_probe,
- .remove = mv_xor_remove,
+ .remove = __devexit_p(mv_xor_remove),
.driver = {
.owner = THIS_MODULE,
.name = MV_XOR_NAME,