drm/amdgpu: remove nonsense IB size checks

Those are just leftovers from the time we wrote the VM
updates directly to the ring.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 2dd73ca..dfbcc64 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -434,10 +434,6 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev,
        /* assume the worst case */
        ndw += vm->max_pde_used * 6;
 
-       /* update too big for an IB */
-       if (ndw > 0xfffff)
-               return -ENOMEM;
-
        ib = kzalloc(sizeof(struct amdgpu_ib), GFP_KERNEL);
        if (!ib)
                return -ENOMEM;
@@ -743,10 +739,6 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
                ndw += 2 * 10;
        }
 
-       /* update too big for an IB */
-       if (ndw > 0xfffff)
-               return -ENOMEM;
-
        ib = kzalloc(sizeof(struct amdgpu_ib), GFP_KERNEL);
        if (!ib)
                return -ENOMEM;