diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2020-01-22 02:44:23 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-01-24 08:48:45 +0300 |
| commit | 8f47d1a5e545f903cd049c42da31a3be36178447 (patch) | |
| tree | 0a28a5b686d0fe2576b971edf1a2282ba66814ce /drivers/dma/idxd/submit.c | |
| parent | d1dfe5b8ac644a0ffccfe7af22abed7c80b34702 (diff) | |
| download | linux-8f47d1a5e545f903cd049c42da31a3be36178447.tar.xz | |
dmaengine: idxd: connect idxd to dmaengine subsystem
Add plumbing for dmaengine subsystem connection. The driver register a DMA
device per DSA device. The channels are dynamically registered when a
workqueue is configured to be "kernel:dmanegine" type.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/157965026376.73301.13867988830650740445.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/idxd/submit.c')
| -rw-r--r-- | drivers/dma/idxd/submit.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/dma/idxd/submit.c b/drivers/dma/idxd/submit.c index a405f06990e3..e16cab37dda8 100644 --- a/drivers/dma/idxd/submit.c +++ b/drivers/dma/idxd/submit.c @@ -85,7 +85,9 @@ int idxd_submit_desc(struct idxd_wq *wq, struct idxd_desc *desc) * Pending the descriptor to the lockless list for the irq_entry * that we designated the descriptor to. */ - llist_add(&desc->llnode, &idxd->irq_entries[vec].pending_llist); + if (desc->hw->flags & IDXD_OP_FLAG_RCI) + llist_add(&desc->llnode, + &idxd->irq_entries[vec].pending_llist); return 0; } |