summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c
diff options
context:
space:
mode:
authorLe Ma <le.ma@amd.com>2022-03-01 19:42:29 +0800
committerAlex Deucher <alexander.deucher@amd.com>2023-06-09 09:43:41 -0400
commit2a47a2d90e5cd96c24503061c8920a1e6ee248a0 (patch)
tree9e0a241e27989e4de1cdbc7e44793312257707d0 /drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c
parentf786b1d4ec778a5fc23911f06a0e38c9f4953b0c (diff)
drm/amdgpu: assign the doorbell index for sdma on non-AID0
Allocate new sdma doorbell index for the instances only on AID1 for now. Todo: there's limitation that SDMA doorbell index on SDMA 4.4.2 needs to be less than 0x1FF, so the tail part in _AMDGPU_VEGA20_DOORBELL_ASSIGNMENT is not enough to store sdma doorbell range on maximum 4 AIDs if doorbell_range is 20. So it looks better to create a new doorbell index assignment table for 4.4.2. v2: change "(x << 1) + 2" to "(x + 1) << 1" for readability. Signed-off-by: Le Ma <le.ma@amd.com> Acked-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c')
0 files changed, 0 insertions, 0 deletions