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drm/amdgpu: remove VI hw bug workaround v3

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The workaround simply doesn't work because VM mappings
are controlled by userspace not the kernel.

Additional to that this is just a performance problem
which happens if you have holes in your VM mapping.

v2: adjust virtual addr alignment as well.
v3: fix trivial warning

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Monk Liu  <monk.liu@amd.com> (v1)
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com> (v2)
This commit is contained in:
Christian König
2015-08-07 20:22:40 +02:00
committed by Alex Deucher
parent 00d2a2b21d
commit c548b345d1
2 changed files with 1 additions and 13 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
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@@ -455,7 +455,7 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
dev_info.ids_flags |= AMDGPU_IDS_FLAGS_FUSION;
dev_info.virtual_address_offset = AMDGPU_VA_RESERVED_SIZE;
dev_info.virtual_address_max = (uint64_t)adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE;
dev_info.virtual_address_alignment = max(PAGE_SIZE, 0x10000UL);
dev_info.virtual_address_alignment = max((int)PAGE_SIZE, AMDGPU_GPU_PAGE_SIZE);
dev_info.pte_fragment_size = (1 << AMDGPU_LOG2_PAGES_PER_FRAG) *
AMDGPU_GPU_PAGE_SIZE;
dev_info.gart_page_size = AMDGPU_GPU_PAGE_SIZE;