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DMA: PL08x: clean up LLI debugging

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Clean up debugging when setting up the LLI list.  This reduces the
amount of output while preserving the information, and makes it easier
to read.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Russell King - ARM Linux 2011-07-21 17:12:06 +01:00 committed by Vinod Koul
parent 25c94f7fcf
commit fc74eb7915
1 changed files with 16 additions and 17 deletions
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33
drivers/dma/amba-pl08x.c
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@ -617,25 +617,15 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x,
/* Set up the bus widths to the maximum */
bd.srcbus.buswidth = bd.srcbus.maxwidth;
bd.dstbus.buswidth = bd.dstbus.maxwidth;
dev_vdbg(&pl08x->adev->dev,
"%s source bus is %d bytes wide, dest bus is %d bytes wide\n",
__func__, bd.srcbus.buswidth, bd.dstbus.buswidth);
/*
* Bytes transferred == tsize * MIN(buswidths), not max(buswidths)
*/
max_bytes_per_lli = min(bd.srcbus.buswidth, bd.dstbus.buswidth) *
PL080_CONTROL_TRANSFER_SIZE_MASK;
dev_vdbg(&pl08x->adev->dev,
"%s max bytes per lli = %zu\n",
__func__, max_bytes_per_lli);
/* We need to count this down to zero */
bd.remainder = txd->len;
dev_vdbg(&pl08x->adev->dev,
"%s remainder = %zu\n",
__func__, bd.remainder);
/*
* Choose bus to align to
@ -644,6 +634,16 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x,
*/
pl08x_choose_master_bus(&bd, &mbus, &sbus, cctl);
dev_vdbg(&pl08x->adev->dev, "src=0x%08x%s/%u dst=0x%08x%s/%u len=%zu llimax=%zu\n",
bd.srcbus.addr, cctl & PL080_CONTROL_SRC_INCR ? "+" : "",
bd.srcbus.buswidth,
bd.dstbus.addr, cctl & PL080_CONTROL_DST_INCR ? "+" : "",
bd.dstbus.buswidth,
bd.remainder, max_bytes_per_lli);
dev_vdbg(&pl08x->adev->dev, "mbus=%s sbus=%s\n",
mbus == &bd.srcbus ? "src" : "dst",
sbus == &bd.srcbus ? "src" : "dst");
if (txd->len < mbus->buswidth) {
/* Less than a bus width available - send as single bytes */
while (bd.remainder) {
@ -835,15 +835,14 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x,
{
int i;
dev_vdbg(&pl08x->adev->dev,
"%-3s %-9s %-10s %-10s %-10s %s\n",
"lli", "", "csrc", "cdst", "clli", "cctl");
for (i = 0; i < num_llis; i++) {
dev_vdbg(&pl08x->adev->dev,
"lli %d @%p: csrc=0x%08x, cdst=0x%08x, cctl=0x%08x, clli=0x%08x\n",
i,
&llis_va[i],
llis_va[i].src,
llis_va[i].dst,
llis_va[i].cctl,
llis_va[i].lli
"%3d @%p: 0x%08x 0x%08x 0x%08x 0x%08x\n",
i, &llis_va[i], llis_va[i].src,
llis_va[i].dst, llis_va[i].lli, llis_va[i].cctl
);
}
}