This patch extends the user queue creation API to support:
1. Queue priority levels (normal low, low, normal high, high)
- High priority is restricted to admin-only
2. Secure queue flag for protected content access
The changes include:
- Adding a `flags` parameter to `amdgpu_create_userqueue()`
- Defining priority and security flags in `amdgpu_drm.h`
- Updating the `drm_amdgpu_userq_in` struct to replace padding with flags
- Documenting the new flags field
Related driver patches provided by Alex:
https://lists.freedesktop.org/archives/amd-gfx/2025-April/122782.htmlhttps://lists.freedesktop.org/archives/amd-gfx/2025-April/122780.htmlhttps://lists.freedesktop.org/archives/amd-gfx/2025-April/122786.html
Cc: Koenig, Christian <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jesse.Zhang <Jesse.zhang@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This patch adds new IOCTL functions to support
userqueue create, remove, signal and wait etc.
v2:(Marek)
- Add csa support for SDMA queue.
- Addressed's review comments.
- Removed raw2/op2 ioctl.
- Added syncobj_timeline_handles in amdgpu_userq_wait IOCTL.
v3:(Yogesh)
- Rename 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)
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
amdgpu_create_userqueue IOCTL. (Arvind)
v6:(Pierre-Eric)
- Remove unused headers. (Arvind)
- 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.
- Added new function in amdgpu-symbols.txt (Arvind)
v9:(Marek)
- Use the drm signal/wait structure as the parameter. (Arun)
Cc: Deucher, Alexander <alexander.deucher@amd.com>
Cc: Koenig, Christian <christian.koenig@amd.com>
Cc: Sharma, Shashank <shashank.sharma@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: Arvind Yadav <arvind.yadav@amd.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
