diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2020-01-21 16:44:29 -0700 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-01-24 11:18:45 +0530 |
| commit | 42d279f9137ab7d5503836baec2739284b278d8f (patch) | |
| tree | d2876eeee15f34802ffe1d20f5ff0a331ba08d48 /drivers/dma/idxd/device.c | |
| parent | 8f47d1a5e545f903cd049c42da31a3be36178447 (diff) | |
dmaengine: idxd: add char driver to expose submission portal to userland
Create a char device region that will allow acquisition of user portals in
order to allow applications to submit DMA operations. A char device will be
created per work queue that gets exposed. The workqueue type "user"
is used to mark a work queue for user char device. For example if the
workqueue 0 of DSA device 0 is marked for char device, then a device node
of /dev/dsa/wq0.0 will be created.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/157965026985.73301.976523230037106742.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/idxd/device.c')
| -rw-r--r-- | drivers/dma/idxd/device.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/idxd/device.c b/drivers/dma/idxd/device.c index b4c4cec489df..ada69e722f84 100644 --- a/drivers/dma/idxd/device.c +++ b/drivers/dma/idxd/device.c @@ -539,7 +539,7 @@ static int idxd_wq_config_write(struct idxd_wq *wq) wq->wqcfg.wq_thresh = wq->threshold; /* byte 8-11 */ - wq->wqcfg.priv = 1; /* kernel, therefore priv */ + wq->wqcfg.priv = !!(wq->type == IDXD_WQT_KERNEL); wq->wqcfg.mode = 1; wq->wqcfg.priority = wq->priority; |