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72d3140428
This patch adds UAPI interface changes for AMDGPU usermode
queues, semaphore and new AMDGPU GEM domain for doorbells.
Usermode queues allow a userspace process to create
and submit its graphics/compute/sdma work directly to the GPU.
v2:(Marek)
- Add csa support for SDMA queue.
- Rename UAPI objects and struct as per UAPI review. (Shashank)
v3:(Yogesh)
- Rename UAPI timeline* objects as per UAPI review. (Arvind)
v4: (Marek)
- Drop AMDGPU_USERQ_BO_WRITE as this should not be a global option
of the IOCTL, It should be option per buffer. Hence adding separate
array for read and write BO handles. (Arun)
- Modify num_fences to __u16, flags changed to __u16 and placed
the num_fences next to flags for optimal padding and size. (Arun)
- Fix 32-bit holes issue in sturct drm_amdgpu_gem_va as per
UAPI review (Arvind).
v5:(Marek/Pierre-Eric)
- add more detail params description for signal and wait IOCTL calls.
- Remove the unused structure fields in signal and wait structs.
- Add separate array of read and write for BO handles. (Arun)
- Removes the unused flags parameter from the usermode queue UAPI structure
- Clarify comments on top of drm_amdgpu_userq_in
- Clarify comment for queue_id (in)
- Clarify comment for mqd
- Clarify comment for compute MQD size
- Clarify comment for queue_id (out)
- Adds padding variables in userqueue in/out structures. (Shashank)
v6:(Pierre-Eric)
- Modify the function parameter names and struct
field names as per the review comments. (Arun)
v7:(Marek)
- Modify the structure field name and comments. (Arun)
- Rename vm_timeline_syncobj and add comment for
vm_timeline_point.
- Remove GDS buffer support from MQD. (Arvind)
v8:(Pierre-Eric)
- Modify the function parameter names.
Cc: Koenig, Christian <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Arvind Yadav <arvind.yadav@amd.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
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