drm/amdgpu/display: Implement functions to let DC allocate GPU memory

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[Why]
DC needs to communicate with PM FW through GPU memory. In order
to do so we need to be able to allocate memory from within DC.

[How]
Call amdgpu_bo_create_kernel to allocate GPU memory and use a
list in amdgpu_display_manager to track our allocations so we
can clean them up later.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Zhan Liu <zhan.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Zhan Liu 2021-03-08 20:20:44 -05:00 • committed by Alex Deucher

parent 89551f2387

commit 0dd7953234

3 changed files with 54 additions and 3 deletions

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1

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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16

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h

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40

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c

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