drm/amdgpu: use a single linked list for amdgpu_vm_bo_base

Instead of the double linked list. Gets the size of amdgpu_vm_pt down to
64 bytes again.

We could even reduce it down to 32 bytes, but that would require some
rather extreme hacks.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
index 907fdf46d895..64337ff2ad63 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
@@ -89,8 +89,8 @@ struct amdgpu_bo {
         void                            *metadata;
         u32                             metadata_size;
         unsigned                        prime_shared_count;
-        /* list of all virtual address to which this bo is associated to */
-        struct list_head                va;
+        /* per VM structure for page tables and with virtual addresses */
+        struct amdgpu_vm_bo_base        *vm_bo;
         /* Constant after initialization */
         struct drm_gem_object           gem_base;
         struct amdgpu_bo                *parent;