drm/amdgpu: keep the MMU lock until the update ends v4

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This is quite controversial because it adds another lock which is held during
page table updates, but I don't see much other option.

v2: allow multiple updates to be in flight at the same time
v3: simplify the patch, take the read side only once
v4: correctly fix rebase conflict

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Christian König 2017-09-05 17:30:46 +02:00 • committed by Alex Deucher

parent aebc5e6f50

commit 1ed3d2567c

2 changed files with 57 additions and 6 deletions

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4

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

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59

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

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