NGG_POS
dev_info.pos_buf_gpu_addr = adev->gfx.ngg.buf[NGG_POS].gpu_addr;
dev_info.pos_buf_size = adev->gfx.ngg.buf[NGG_POS].size;
r = gfx_v9_0_ngg_create_buf(adev, &adev->gfx.ngg.buf[NGG_POS],
adev->gfx.ngg.buf[NGG_POS].size >> 8);
base = lower_32_bits(adev->gfx.ngg.buf[NGG_POS].gpu_addr);
base = upper_32_bits(adev->gfx.ngg.buf[NGG_POS].gpu_addr);