diff options
| author | Rabin Vincent <rabin.vincent@stericsson.com> | 2011-01-25 10:18:19 (GMT) |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2011-01-31 06:27:18 (GMT) |
| commit | dbd887880320b6a56811bb38ff4ad888728c3a91 (patch) | |
| tree | 0825398570e258b43dbdb731ed9df20d32d2f039 /drivers/dma | |
| parent | 5f81158f90db4bc8a79e91736aa3afce8e590e46 (diff) | |
| download | linux-dbd887880320b6a56811bb38ff4ad888728c3a91.tar.xz | |
dma40: combine duplicated d40_pool_lli_alloc() calls
Acked-by: Per Forlin <per.forlin@stericsson.com>
Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/ste_dma40.c | 38 |
1 files changed, 14 insertions, 24 deletions
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 5259a98..495f9eb 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -332,8 +332,9 @@ static void __iomem *chan_base(struct d40_chan *chan) d40_err(chan2dev(d40c), format, ## arg) static int d40_pool_lli_alloc(struct d40_chan *d40c, struct d40_desc *d40d, - int lli_len, bool is_log) + int lli_len) { + bool is_log = chan_is_logical(d40c); u32 align; void *base; @@ -1623,6 +1624,7 @@ d40_prep_desc(struct d40_chan *chan, struct scatterlist *sg, { struct stedma40_chan_cfg *cfg = &chan->dma_cfg; struct d40_desc *desc; + int ret; desc = d40_desc_get(chan); if (!desc) @@ -1632,11 +1634,16 @@ d40_prep_desc(struct d40_chan *chan, struct scatterlist *sg, cfg->dst_info.data_width); if (desc->lli_len < 0) { chan_err(chan, "Unaligned size\n"); - d40_desc_free(chan, desc); + goto err; + } - return NULL; + ret = d40_pool_lli_alloc(chan, desc, desc->lli_len); + if (ret < 0) { + chan_err(chan, "Could not allocate lli\n"); + goto err; } + desc->lli_current = 0; desc->txd.flags = dma_flags; desc->txd.tx_submit = d40_tx_submit; @@ -1644,6 +1651,10 @@ d40_prep_desc(struct d40_chan *chan, struct scatterlist *sg, dma_async_tx_descriptor_init(&desc->txd, &chan->chan); return desc; + +err: + d40_desc_free(chan, desc); + return NULL; } struct dma_async_tx_descriptor *stedma40_memcpy_sg(struct dma_chan *chan, @@ -1670,12 +1681,6 @@ struct dma_async_tx_descriptor *stedma40_memcpy_sg(struct dma_chan *chan, goto err; if (chan_is_logical(d40c)) { - - if (d40_pool_lli_alloc(d40c, d40d, d40d->lli_len, true) < 0) { - chan_err(d40c, "Out of memory\n"); - goto err; - } - (void) d40_log_sg_to_lli(sgl_src, sgl_len, d40d->lli_log.src, @@ -1690,11 +1695,6 @@ struct dma_async_tx_descriptor *stedma40_memcpy_sg(struct dma_chan *chan, d40c->dma_cfg.dst_info.data_width, d40c->dma_cfg.src_info.data_width); } else { - if (d40_pool_lli_alloc(d40c, d40d, d40d->lli_len, false) < 0) { - chan_err(d40c, "Out of memory\n"); - goto err; - } - res = d40_phy_sg_to_lli(sgl_src, sgl_len, 0, @@ -1914,11 +1914,6 @@ static int d40_prep_slave_sg_log(struct d40_desc *d40d, dma_addr_t dev_addr = 0; int total_size; - if (d40_pool_lli_alloc(d40c, d40d, d40d->lli_len, true) < 0) { - chan_err(d40c, "Out of memory\n"); - return -ENOMEM; - } - if (direction == DMA_FROM_DEVICE) if (d40c->runtime_addr) dev_addr = d40c->runtime_addr; @@ -1958,11 +1953,6 @@ static int d40_prep_slave_sg_phy(struct d40_desc *d40d, dma_addr_t dst_dev_addr; int res; - if (d40_pool_lli_alloc(d40c, d40d, d40d->lli_len, false) < 0) { - chan_err(d40c, "Out of memory\n"); - return -ENOMEM; - } - if (direction == DMA_FROM_DEVICE) { dst_dev_addr = 0; if (d40c->runtime_addr) |