drm/amdgpu: fix gtt available page num accounting

Signed-off-by: Flora Cui <Flora.Cui@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Flora Cui 2016-12-02 16:51:20 +08:00 • committed by Alex Deucher
commit 47e50d5c0d