linux/drivers/gpu/drm/amd/amdgpu/amdgpu_seq64.h, branch v6.8Mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
https://git.shady.money/linux/atom?h=v6.82023-11-17T14:29:53Zdrm/amdgpu: Implement a new 64bit sequence memory driver2023-11-17T14:29:53ZArunpravin Paneer SelvamArunpravin.PaneerSelvam@amd.com2023-10-10T14:35:06Zurn: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>