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drm/amdgpu: expose the max virtual address 

Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Jammy Zhou 2015-05-12 22:46:45 +08:00 committed by Alex Deucher
parent 3cb485f340
commit 02b70c8c9f
2 changed files with 3 additions and 0 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
View File

@ -428,6 +428,7 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
if (adev->flags & AMDGPU_IS_APU)
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.pte_fragment_size = (1 << AMDGPU_LOG2_PAGES_PER_FRAG) *
AMDGPU_GPU_PAGE_SIZE;

2
include/uapi/drm/amdgpu_drm.h
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@ -560,6 +560,8 @@ struct drm_amdgpu_info_device {
uint64_t ids_flags;
/** Starting virtual address for UMDs. */
uint64_t virtual_address_offset;
/** The maximum virtual address */
uint64_t virtual_address_max;
/** Required alignment of virtual addresses. */
uint32_t virtual_address_alignment;
/** Page table entry - fragment size */