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drm/amdgpu: cleanup initializing gtt_size

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Stop spreading the code over all GMC generations.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2017-06-26 11:37:49 +02:00
committed by Alex Deucher
parent 890419409a
commit 011d4bbea9
6 changed files with 25 additions and 36 deletions
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20
drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
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@@ -55,6 +55,26 @@
/*
* Common GART table functions.
*/
/**
* amdgpu_gart_set_defaults - set the default gtt_size
*
* @adev: amdgpu_device pointer
*
* Set the default gtt_size based on parameters and available VRAM.
*/
void amdgpu_gart_set_defaults(struct amdgpu_device *adev)
{
/* unless the user had overridden it, set the gart
* size equal to the 1024 or vram, whichever is larger.
*/
if (amdgpu_gart_size == -1)
adev->mc.gtt_size = max((AMDGPU_DEFAULT_GTT_SIZE_MB << 20),
adev->mc.mc_vram_size);
else
adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20;
}
/**
* amdgpu_gart_table_ram_alloc - allocate system ram for gart page table
*