kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_seq64.h, branch v6.12.80Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v6.12.802024-01-22T22:13:18+00:00drm/amdgpu: Enable seq64 manager and fix bugs2024-01-22T22:13:18+00:00Arunpravin Paneer SelvamArunpravin.PaneerSelvam@amd.com2024-01-12T07:21:13+00:00urn:sha1:00a11f977beb752186221679db2265a69118a5a7
- Enable the seq64 mapping sequence.
- Fix wflinfo va conflict and other bugs.
v1:
- The seq64 area needs to be included in the AMDGPU_VA_RESERVED_SIZE
otherwise the areas will conflict with user space allocations (Alex)
- It needs to be mapped read only in the user VM (Alex)
v2:
- Instead of just one define for TOP/BOTTOM
reserved space separate them into two (Christian)
- Fix the CPU and VA calculations and while at it
also cleanup error handling and kerneldoc (Christian)
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
drm/amdgpu: Implement a new 64bit sequence memory driver2023-11-17T14:29:53+00:00Arunpravin Paneer SelvamArunpravin.PaneerSelvam@amd.com2023-10-10T14:35:06+00:00urn:sha1:c8031019dc95e3ab7cc0b09f1894c5f52dc0c187
Developed a new driver which allocates a 64bit memory on
each request in sequence order. At the moment, user queue
fence memory is the main consumer of this seq64 driver.
v2: Worked on review comments from Christian for the following
modifications
- Move driver name from "semaphore" to "seq64"
- Remove unnecessary PT/PD mapping
- Move enable_mes check into init/fini functions.
v3: Worked on review comments from Christian
- drop enable_mes check
- use DECLARE_BITMAP for bit array
- added kerneldoc for seq64
v4: Worked on review comments from Christian
- Rename amdgpu_seq64_get name with amdgpu_seq64_alloc
v5: Worked on review comments from Christian
- Fix seq64 lockdep warning
- move fpriv->seq64_va check into amdgpu_seq64_unmap()
- make the function amdgpu_seq64_unmap() return as void.
- reserve the buffers as not interruptible.
v6: port to drm_exec (Alex)
v7: disable for now (Arun)
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>