From: nsekhar@ti•com (Sekhar Nori)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v3 07/12] dma: edma: Add function to dump a PaRAM set from PaRAM
Date: Mon, 12 Aug 2013 11:22:36 +0530 [thread overview]
Message-ID: <52087824.60002@ti.com> (raw)
In-Reply-To: <1375719297-12871-8-git-send-email-joelf@ti.com>
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@ti•com>
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)
> {
>
next prev parent reply other threads:[~2013-08-12 5:52 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-05 16:14 [PATCH v3 00/12] edma: Add support for SG lists of any length Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 01/12] dma: edma: Setup parameters to DMA MAX_NR_SG at a time Joel Fernandes
2013-08-12 7:15 ` Sekhar Nori
2013-08-12 23:55 ` Joel Fernandes
2013-08-13 0:19 ` Joel Fernandes
2013-08-13 0:05 ` Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 02/12] ARM: edma: Don't clear EMR of channel in edma_stop Joel Fernandes
2013-08-08 11:49 ` Sekhar Nori
2013-08-12 4:25 ` Sekhar Nori
2013-08-12 4:29 ` Joel Fernandes
2013-08-12 6:24 ` Sekhar Nori
2013-08-05 16:14 ` [PATCH v3 03/12] dma: edma: remove limits on number of slots Joel Fernandes
2013-08-12 7:17 ` Sekhar Nori
2013-08-05 16:14 ` [PATCH v3 04/12] dma: edma: Write out and handle MAX_NR_SG at a given time Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 05/12] ARM: edma: Add function to enable interrupt for a PaRAM slot Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 06/12] ARM: edma: Add pr_debug in edma_link Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 07/12] dma: edma: Add function to dump a PaRAM set from PaRAM Joel Fernandes
2013-08-12 5:52 ` Sekhar Nori [this message]
2013-08-13 1:06 ` Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 08/12] dma: edma: Add one more required slot to MAX slots Joel Fernandes
2013-08-12 5:56 ` Sekhar Nori
2013-08-12 13:31 ` Mark Brown
2013-08-12 18:19 ` Joel Fernandes
2013-08-13 1:08 ` Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 09/12] dma: edma: Implement multiple linked sets for continuity Joel Fernandes
2013-08-12 18:56 ` Sekhar Nori
2013-08-13 1:00 ` Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 10/12] dma: edma: Check if MAX_NR_SG is even in prep function Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 11/12] dma: edma: Keep tracking of Pending interrupts (pending_acks) Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 12/12] dma: edma: Return if nothing left todo in edma_execute Joel Fernandes
2013-08-16 5:57 ` [PATCH v3 00/12] edma: Add support for SG lists of any length Joel Fernandes
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