2 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 02c450d0be1a..35185d6b7d46 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -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;
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index fb428fe54186..65da7cd16c0f 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -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 */