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