drm/amdgpu: add new doorbell assignment table for aqua_vanjaram

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Four basic reasons as below to do the change:
  1. number of ring expand a lot on aqua_vanjaram, and adjustment on old
     assignment cannot make each ring in a continuous doorbell space.
  2. the SDMA doorbell index should not exceed 0x1FF on aqua_vanjaram due to
     regDOORBELLx_CTRL_ENTRY.BIF_DOORBELLx_RANGE_OFFSET_ENTRY field width.
  3. re-design the doorbell assignment and unify the calculation as
     "start + ring/inst id" will make the code much concise.
  4. only defining the START/END makes the table look simple

v2: (Lijo)
  1. replace name
  2. use num_inst_per_aid/sdma_doorbell_range instead of hardcoding

Signed-off-by: Le Ma <le.ma@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Le Ma 2022-04-25 22:19:58 +08:00 • committed by Alex Deucher

parent 5a8b26a886

commit 6df442a03d

2 changed files with 53 additions and 1 deletions

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2

drivers/gpu/drm/amd/amdgpu/Makefile

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52

drivers/gpu/drm/amd/amdgpu/aqua_vanjaram_reg_init.c

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