diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
index 7f77367848d4..78bdfed0a7fd 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
@@ -2305,11 +2305,11 @@ static void sdma_v4_4_2_emit_fill_buffer(struct amdgpu_ib *ib,
 }
 
 static const struct amdgpu_buffer_funcs sdma_v4_4_2_buffer_funcs = {
-	.copy_max_bytes = 0x400000,
+	.copy_max_bytes = 1 << 30,
 	.copy_num_dw = 7,
 	.emit_copy_buffer = sdma_v4_4_2_emit_copy_buffer,
 
-	.fill_max_bytes = 0x400000,
+	.fill_max_bytes = 1 << 30,
 	.fill_num_dw = 5,
 	.emit_fill_buffer = sdma_v4_4_2_emit_fill_buffer,
 };