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| 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 /include/linux/dmaengine.h | |
| parent | dmaengine: idxd: connect idxd to dmaengine subsystem (diff) | |
| download | linux-dev-42d279f9137ab7d5503836baec2739284b278d8f.tar.xz linux-dev-42d279f9137ab7d5503836baec2739284b278d8f.zip | |
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 'include/linux/dmaengine.h')
0 files changed, 0 insertions, 0 deletions