dmaengine: edma: Store transfer data in edma_desc and edma_pset

For granular accounting we need to store the direction and the
information for the individual psets:

- source or destination address, depending on direction
- length

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index c6f60e9..6e23000 100644 (file)
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -58,12 +58,15 @@
 #define EDMA_DESCRIPTORS       16
 
 struct edma_pset {
+       u32                             len;
+       dma_addr_t                      addr;
        struct edmacc_param             param;
 };
 
 struct edma_desc {
        struct virt_dma_desc            vdesc;
        struct list_head                node;
+       enum dma_transfer_direction     direction;
        int                             cyclic;
        int                             absync;
        int                             pset_nr;
@@ -376,16 +379,20 @@ static int edma_config_pset(struct dma_chan *chan, struct edma_pset *epset,
                cidx = acnt * bcnt;
        }
 
+       epset->len = dma_length;
+
        if (direction == DMA_MEM_TO_DEV) {
                src_bidx = acnt;
                src_cidx = cidx;
                dst_bidx = 0;
                dst_cidx = 0;
+               epset->addr = src_addr;
        } else if (direction == DMA_DEV_TO_MEM)  {
                src_bidx = 0;
                src_cidx = 0;
                dst_bidx = acnt;
                dst_cidx = cidx;
+               epset->addr = dst_addr;
        } else if (direction == DMA_MEM_TO_MEM)  {
                src_bidx = acnt;
                src_cidx = cidx;
@@ -463,6 +470,7 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg(
 
        edesc->pset_nr = sg_len;
        edesc->residue = 0;
+       edesc->direction = direction;
 
        /* Allocate a PaRAM slot, if needed */
        nslots = min_t(unsigned, MAX_NR_SG, sg_len);
@@ -615,6 +623,7 @@ static struct dma_async_tx_descriptor *edma_prep_dma_cyclic(
        edesc->cyclic = 1;
        edesc->pset_nr = nslots;
        edesc->residue = buf_len;
+       edesc->direction = direction;
 
        dev_dbg(dev, "%s: channel=%d nslots=%d period_len=%zu buf_len=%zu\n",
                __func__, echan->ch_num, nslots, period_len, buf_len);