AuxXxilium/linux_dsm_epyc7002
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Merge branch 'topic/edma' into for-linus

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This commit is contained in:
Vinod Koul 2016-03-14 11:17:36 +05:30
commit 9f2f4956ed
1 changed files with 33 additions and 24 deletions
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57
drivers/dma/edma.c
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@ -866,6 +866,13 @@ static int edma_terminate_all(struct dma_chan *chan)
return 0;
}
static void edma_synchronize(struct dma_chan *chan)
{
struct edma_chan *echan = to_edma_chan(chan);
vchan_synchronize(&echan->vchan);
}
static int edma_slave_config(struct dma_chan *chan,
struct dma_slave_config *cfg)
{
@ -1362,36 +1369,36 @@ static struct dma_async_tx_descriptor *edma_prep_dma_cyclic(
static void edma_completion_handler(struct edma_chan *echan)
{
struct device *dev = echan->vchan.chan.device->dev;
struct edma_desc *edesc = echan->edesc;
if (!edesc)
return;
struct edma_desc *edesc;
spin_lock(&echan->vchan.lock);
if (edesc->cyclic) {
vchan_cyclic_callback(&edesc->vdesc);
spin_unlock(&echan->vchan.lock);
return;
} else if (edesc->processed == edesc->pset_nr) {
edesc->residue = 0;
edma_stop(echan);
vchan_cookie_complete(&edesc->vdesc);
echan->edesc = NULL;
edesc = echan->edesc;
if (edesc) {
if (edesc->cyclic) {
vchan_cyclic_callback(&edesc->vdesc);
spin_unlock(&echan->vchan.lock);
return;
} else if (edesc->processed == edesc->pset_nr) {
edesc->residue = 0;
edma_stop(echan);
vchan_cookie_complete(&edesc->vdesc);
echan->edesc = NULL;
dev_dbg(dev, "Transfer completed on channel %d\n",
echan->ch_num);
} else {
dev_dbg(dev, "Sub transfer completed on channel %d\n",
echan->ch_num);
dev_dbg(dev, "Transfer completed on channel %d\n",
echan->ch_num);
} else {
dev_dbg(dev, "Sub transfer completed on channel %d\n",
echan->ch_num);
edma_pause(echan);
edma_pause(echan);
/* Update statistics for tx_status */
edesc->residue -= edesc->sg_len;
edesc->residue_stat = edesc->residue;
edesc->processed_stat = edesc->processed;
/* Update statistics for tx_status */
edesc->residue -= edesc->sg_len;
edesc->residue_stat = edesc->residue;
edesc->processed_stat = edesc->processed;
}
edma_execute(echan);
}
edma_execute(echan);
spin_unlock(&echan->vchan.lock);
}
@ -1798,6 +1805,7 @@ static void edma_dma_init(struct edma_cc *ecc, bool legacy_mode)
s_ddev->device_pause = edma_dma_pause;
s_ddev->device_resume = edma_dma_resume;
s_ddev->device_terminate_all = edma_terminate_all;
s_ddev->device_synchronize = edma_synchronize;
s_ddev->src_addr_widths = EDMA_DMA_BUSWIDTHS;
s_ddev->dst_addr_widths = EDMA_DMA_BUSWIDTHS;
@ -1823,6 +1831,7 @@ static void edma_dma_init(struct edma_cc *ecc, bool legacy_mode)
m_ddev->device_pause = edma_dma_pause;
m_ddev->device_resume = edma_dma_resume;
m_ddev->device_terminate_all = edma_terminate_all;
m_ddev->device_synchronize = edma_synchronize;
m_ddev->src_addr_widths = EDMA_DMA_BUSWIDTHS;
m_ddev->dst_addr_widths = EDMA_DMA_BUSWIDTHS;