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| author | Deepak Nibade <dnibade@nvidia.com> | 2016-11-16 04:49:12 -0500 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2016-11-30 05:18:17 -0500 |
| commit | af5d2d208ada4d84c7a7bd0e4e0c288d1276225f (patch) | |
| tree | a822054d7a576fc5f6e839d7ffebd91147061540 /drivers/gpu/nvgpu/ctrl/ctrlvolt.h | |
| parent | 5f6a2aa02b6927432c9f37e29c592e7efc4cb656 (diff) | |
gpu: nvgpu: API to access fb memory
Add IOCTL API NVGPU_DBG_GPU_IOCTL_ACCESS_FB_MEMORY
to read/write fb/vidmem memory
Interface will accept dmabuf_fd of the buffer in vidmem,
offset into the buffer to access, temporary buffer
to copy data across API, size of read/write and
command indicating either read or write operation
API will first parse all the inputs, and then call
gk20a_vidbuf_access_memory() to complete fb access
gk20a_vidbuf_access_memory() will then just use
gk20a_mem_rd_n() or gk20a_mem_wr_n() depending
on the command issued
Bug 1804714
Jira DNVGPU-192
Change-Id: Iba3c42410abe12c2884d3b603fa33d27782e4c56
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1255556
(cherry picked from commit 2c49a8a79d93fc526adbf6f808484fa9a3fa2498)
Reviewed-on: http://git-master/r/1260471
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/ctrl/ctrlvolt.h')
0 files changed, 0 insertions, 0 deletions