drm/amdgpu: switch to query reserved fb size from vbios (v3)

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For Sienna_Cichlid, query fw_reserved_fb_size from vbios directly.
For navi1x, fall back to default 64K TMR size.
For pre-navi, no need to reserve tmr region in top LFB.

v2: fix TMR define (Alex)
v3: partially revert size change

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

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Hawking Zhang 2020-01-24 00:14:32 +08:00 • committed by Alex Deucher

parent 9a244ebe81

commit 87ba7feafa

1 changed files with 16 additions and 5 deletions

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

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