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drm/amdgpu: cleanup visible vram size handling

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Centralize the limit handling and validation in one place instead
of spreading that around in different hw generations.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2022-02-04 16:17:47 +01:00
committed by Alex Deucher
parent 7ccfd79fdd
commit da2f992091
6 changed files with 7 additions and 19 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
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@@ -1718,7 +1718,6 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
{
uint64_t gtt_size;
int r;
u64 vis_vram_limit;
mutex_init(&adev->mman.gtt_window_lock);
@@ -1741,12 +1740,6 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
return r;
}
/* Reduce size of CPU-visible VRAM if requested */
vis_vram_limit = (u64)amdgpu_vis_vram_limit * 1024 * 1024;
if (amdgpu_vis_vram_limit > 0 &&
vis_vram_limit <= adev->gmc.visible_vram_size)
adev->gmc.visible_vram_size = vis_vram_limit;
/* Change the size here instead of the init above so only lpfn is affected */
amdgpu_ttm_set_buffer_funcs_status(adev, false);
#ifdef CONFIG_64BIT