On Monday 05 August 2013 09:44 PM, Joel Fernandes wrote:
> Previously, such a dump function was used but it wasn't reading
> from the PaRAM, rather just from a edmacc_param structure, we
> add a helpful function for debugging that directly reads from
> the PaRAM and gives the current state correctly (including links
> and interrupt information).
>
> Signed-off-by: Joel Fernandes <joelf@xxxxxx>
You should convert existing instances of PaRAM set dump to use this new
function along with introducing it.
Thanks,
Sekhar
> ---
> drivers/dma/edma.c | 31 +++++++++++++++++++++++++++++++
> 1 file changed, 31 insertions(+)
>
> diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
> index 080d669..a242269 100644
> --- a/drivers/dma/edma.c
> +++ b/drivers/dma/edma.c
> @@ -102,6 +102,37 @@ static void edma_desc_free(struct virt_dma_desc *vdesc)
> kfree(container_of(vdesc, struct edma_desc, vdesc));
> }
>
> +static inline void dump_pset(struct edma_chan *echan, int slot,
> + struct edmacc_param *pset_unused, int pset_idx)
> +{
> + struct edmacc_param pset_local, *pset;
> + pset = &pset_local;
> +
> + edma_read_slot(slot, pset);
> +
> + dev_dbg(echan->vchan.chan.device->dev,
> + "\n pset[%d]:\n"
> + " chnum\t%d\n"
> + " slot\t%d\n"
> + " opt\t%08x\n"
> + " src\t%08x\n"
> + " dst\t%08x\n"
> + " abcnt\t%08x\n"
> + " ccnt\t%08x\n"
> + " bidx\t%08x\n"
> + " cidx\t%08x\n"
> + " lkrld\t%08x\n",
> + pset_idx, echan->ch_num, slot,
> + pset[0].opt,
> + pset[0].src,
> + pset[0].dst,
> + pset[0].a_b_cnt,
> + pset[0].ccnt,
> + pset[0].src_dst_bidx,
> + pset[0].src_dst_cidx,
> + pset[0].link_bcntrld);
> +}
> +
> /* Dispatch a queued descriptor to the controller (caller holds lock) */
> static void edma_execute(struct edma_chan *echan)
> {
>
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