Merge commit 'dmaengine-3.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-beck.git] / drivers / dma / iop-adma.c

diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index 408fe6be15f4f394a1a3467e7822d92031af4ec3..c56137bc3868da7cdc43bf38fab53a30ca410430 100644 (file)
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -61,80 +61,6 @@ static void iop_adma_free_slots(struct iop_adma_desc_slot *slot)
        }
 }
 
-static void
-iop_desc_unmap(struct iop_adma_chan *iop_chan, struct iop_adma_desc_slot *desc)
-{
-       struct dma_async_tx_descriptor *tx = &desc->async_tx;
-       struct iop_adma_desc_slot *unmap = desc->group_head;
-       struct device *dev = &iop_chan->device->pdev->dev;
-       u32 len = unmap->unmap_len;
-       enum dma_ctrl_flags flags = tx->flags;
-       u32 src_cnt;
-       dma_addr_t addr;
-       dma_addr_t dest;
-
-       src_cnt = unmap->unmap_src_cnt;
-       dest = iop_desc_get_dest_addr(unmap, iop_chan);
-       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);
-       }
-
-       if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-               while (src_cnt--) {
-                       addr = iop_desc_get_src_addr(unmap, iop_chan, src_cnt);
-                       if (addr == dest)
-                               continue;
-                       dma_unmap_page(dev, addr, len, DMA_TO_DEVICE);
-               }
-       }
-       desc->group_head = NULL;
-}
-
-static void
-iop_desc_unmap_pq(struct iop_adma_chan *iop_chan, struct iop_adma_desc_slot *desc)
-{
-       struct dma_async_tx_descriptor *tx = &desc->async_tx;
-       struct iop_adma_desc_slot *unmap = desc->group_head;
-       struct device *dev = &iop_chan->device->pdev->dev;
-       u32 len = unmap->unmap_len;
-       enum dma_ctrl_flags flags = tx->flags;
-       u32 src_cnt = unmap->unmap_src_cnt;
-       dma_addr_t pdest = iop_desc_get_dest_addr(unmap, iop_chan);
-       dma_addr_t qdest = iop_desc_get_qdest_addr(unmap, iop_chan);
-       int i;
-
-       if (tx->flags & DMA_PREP_CONTINUE)
-               src_cnt -= 3;
-
-       if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP) && !desc->pq_check_result) {
-               dma_unmap_page(dev, pdest, len, DMA_BIDIRECTIONAL);
-               dma_unmap_page(dev, qdest, len, DMA_BIDIRECTIONAL);
-       }
-
-       if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-               dma_addr_t addr;
-
-               for (i = 0; i < src_cnt; i++) {
-                       addr = iop_desc_get_src_addr(unmap, iop_chan, i);
-                       dma_unmap_page(dev, addr, len, DMA_TO_DEVICE);
-               }
-               if (desc->pq_check_result) {
-                       dma_unmap_page(dev, pdest, len, DMA_TO_DEVICE);
-                       dma_unmap_page(dev, qdest, len, DMA_TO_DEVICE);
-               }
-       }
-
-       desc->group_head = NULL;
-}
-
-
 static dma_cookie_t
 iop_adma_run_tx_complete_actions(struct iop_adma_desc_slot *desc,
        struct iop_adma_chan *iop_chan, dma_cookie_t cookie)
@@ -152,15 +78,9 @@ iop_adma_run_tx_complete_actions(struct iop_adma_desc_slot *desc,
                if (tx->callback)
                        tx->callback(tx->callback_param);
 
-               /* unmap dma addresses
-                * (unmap_single vs unmap_page?)
-                */
-               if (desc->group_head && desc->unmap_len) {
-                       if (iop_desc_is_pq(desc))
-                               iop_desc_unmap_pq(iop_chan, desc);
-                       else
-                               iop_desc_unmap(iop_chan, desc);
-               }
+               dma_descriptor_unmap(tx);
+               if (desc->group_head)
+                       desc->group_head = NULL;
        }
 
        /* run dependent operations */
@@ -591,7 +511,6 @@ iop_adma_prep_dma_interrupt(struct dma_chan *chan, unsigned long flags)
        if (sw_desc) {
                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);
@@ -623,8 +542,6 @@ iop_adma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dma_dest,
                iop_desc_set_byte_count(grp_start, iop_chan, len);
                iop_desc_set_dest_addr(grp_start, iop_chan, 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);
@@ -657,8 +574,6 @@ iop_adma_prep_dma_xor(struct dma_chan *chan, dma_addr_t dma_dest,
                iop_desc_init_xor(grp_start, src_cnt, flags);
                iop_desc_set_byte_count(grp_start, iop_chan, len);
                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,
@@ -694,8 +609,6 @@ iop_adma_prep_dma_xor_val(struct dma_chan *chan, dma_addr_t *dma_src,
                grp_start->xor_check_result = result;
                pr_debug("\t%s: grp_start->xor_check_result: %p\n",
                        __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,
@@ -748,8 +661,6 @@ iop_adma_prep_dma_pq(struct dma_chan *chan, dma_addr_t *dst, dma_addr_t *src,
                        dst[0] = dst[1] & 0x7;
 
                iop_desc_set_pq_addr(g, dst);
-               sw_desc->unmap_src_cnt = src_cnt;
-               sw_desc->unmap_len = len;
                sw_desc->async_tx.flags = flags;
                for (i = 0; i < src_cnt; i++)
                        iop_desc_set_pq_src_addr(g, i, src[i], scf[i]);
@@ -804,8 +715,6 @@ iop_adma_prep_dma_pq_val(struct dma_chan *chan, dma_addr_t *pq, dma_addr_t *src,
                g->pq_check_result = pqres;
                pr_debug("\t%s: g->pq_check_result: %p\n",
                        __func__, g->pq_check_result);
-               sw_desc->unmap_src_cnt = src_cnt+2;
-               sw_desc->unmap_len = len;
                sw_desc->async_tx.flags = flags;
                while (src_cnt--)
                        iop_desc_set_pq_zero_sum_src_addr(g, src_cnt,