drm/amdgpu: drop the extra sign extension

amdgpu_bo_gpu_offset_no_check() already calls
amdgpu_gmc_sign_extend() so no need to call it twice.
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -171,7 +171,7 @@ static void amdgpu_vm_sdma_copy_ptes(struct amdgpu_vm_update_params *p,
 
 	src += p->num_dw_left * 4;
 
-	pe += amdgpu_gmc_sign_extend(amdgpu_bo_gpu_offset_no_check(bo));
+	pe += amdgpu_bo_gpu_offset_no_check(bo);
 	trace_amdgpu_vm_copy_ptes(pe, src, count, p->immediate);
 
 	amdgpu_vm_copy_pte(p->adev, ib, pe, src, count);
@@ -198,7 +198,7 @@ static void amdgpu_vm_sdma_set_ptes(struct amdgpu_vm_update_params *p,
 {
 	struct amdgpu_ib *ib = p->job->ibs;
 
-	pe += amdgpu_gmc_sign_extend(amdgpu_bo_gpu_offset_no_check(bo));
+	pe += amdgpu_bo_gpu_offset_no_check(bo);
 	trace_amdgpu_vm_set_ptes(pe, addr, count, incr, flags, p->immediate);
 	if (count < 3) {
 		amdgpu_vm_write_pte(p->adev, ib, pe, addr | flags,