diff options
| author | Konsta Holtta <kholtta@nvidia.com> | 2018-09-11 07:47:51 -0400 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2019-08-15 03:58:54 -0400 |
| commit | 8b484c0b531b95fce024e101cdd204f1f8107c29 (patch) | |
| tree | d55f5ab0ed32e8c45ecfb9fa639456eba5433de2 /drivers/gpu/nvgpu/ctrl/ctrlvolt.h | |
| parent | 758cb76e225775ba5ac3dd2cb9415cb40dc83810 (diff) | |
gpu: nvgpu: support usermode submit buffers
Import userd and gpfifo buffers from userspace if provided via
NVGPU_IOCTL_CHANNEL_ALLOC_GPFIFO_EX. Also supply the work submit token
(i.e., the hw channel id) to userspace.
To keep the buffers alive, store their dmabuf and attachment/sgt handles
in nvgpu_channel_linux. Our nvgpu_mem doesn't provide such data for
buffers that are mainly in kernel use. The buffers are freed via a new
API in the os_channel interface.
Fix a bug in gk20a_channel_free_usermode_buffers: also unmap the
usermode gpfifo buffer.
Bug 200145225
Bug 200541476
Change-Id: I8416af7085c91b044ac8ccd9faa38e2a6d0c3946
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1795821
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
(cherry picked from commit 99b1c6dcdf328efcfe47338ad1b71a114ab7f272
in dev-main)
Reviewed-on: https://git-master.nvidia.com/r/2170603
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/ctrl/ctrlvolt.h')
0 files changed, 0 insertions, 0 deletions