drm/amdgpu: reserve backup pages for bad page retirment

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To ensure user has a constant of VRAM accessible in run-time, driver
reserves limit backup pages when init, and return ones when bad pages
retired, to keep no change of unused memory size.

v2: refine codes to calculate badpags threshold

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Dennis Li 2021-02-22 18:22:57 +08:00 • committed by Alex Deucher

parent 6c65a582ee

commit f89b881c81

4 changed files with 118 additions and 15 deletions

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4

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

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29

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

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4

drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h

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96

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

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