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Commit 02b70c8c authored by Jammy Zhou's avatar Jammy Zhou Committed by Alex Deucher
Browse files

drm/amdgpu: expose the max virtual address 



Signed-off-by: default avatarJammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
parent 3cb485f3

drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c

+1 −0
Original line number Diff line number Diff line
@@ -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;

include/uapi/drm/amdgpu_drm.h

+2 −0
Original line number Diff line number Diff line
@@ -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 */