tree: https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux.git habanalabs-next head: f3fad4c1da9034b716430407921cbd316d8c76dd commit: d0c1406684537f957204b2294738c9dfba50c181 [15/62] habanalabs/gaudi: add support for NIC QMANs config: s390-allyesconfig (attached as .config) compiler: s390-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux.git/commit/... git remote add ogabbay https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux.git git fetch --no-tags ogabbay habanalabs-next git checkout d0c1406684537f957204b2294738c9dfba50c181 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=s390 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 2464 | void gaudi_init_nic_qmans(struct hl_device *hdev) | ^~~~~~~~~~~~~~~~~~~~ drivers/misc/habanalabs/gaudi/gaudi.c:7239:5: warning: no previous prototype for 'gaudi_gen_wait_cb' [-Wmissing-prototypes] 7239 | u32 gaudi_gen_wait_cb(struct hl_device *hdev, | ^~~~~~~~~~~~~~~~~ vim +/gaudi_init_nic_qmans +2464 drivers/misc/habanalabs/gaudi/gaudi.c 2455 2456 /** 2457 * gaudi_init_nic_qmans - Initialize NIC QMAN registers 2458 * 2459 * @hdev: pointer to hl_device structure 2460 * 2461 * Initialize the H/W registers of the NIC QMANs 2462 * 2463 */ 2465 { 2466 struct gaudi_device *gaudi = hdev->asic_specific; 2467 struct gaudi_internal_qman_info *q; 2468 u64 qman_base_addr; 2469 u32 nic_offset = 0; 2470 u32 nic_delta_between_qmans = 2471 mmNIC0_QM1_GLBL_CFG0 - mmNIC0_QM0_GLBL_CFG0; 2472 u32 nic_delta_between_nics = 2473 mmNIC1_QM0_GLBL_CFG0 - mmNIC0_QM0_GLBL_CFG0; 2474 int i, nic_id, internal_q_index; 2475 2476 if (!hdev->nic_ports_mask) 2477 return; 2478 2479 if (gaudi->hw_cap_initialized & HW_CAP_NIC_MASK) 2480 return; 2481 2482 dev_dbg(hdev->dev, "Initializing NIC QMANs\n"); 2483 2484 for (nic_id = 0 ; nic_id < NIC_NUMBER_OF_ENGINES ; nic_id++) { 2485 if (!(hdev->nic_ports_mask & (1 << nic_id))) { 2486 nic_offset += nic_delta_between_qmans; 2487 if (nic_id & 1) { 2488 nic_offset -= (nic_delta_between_qmans * 2); 2489 nic_offset += nic_delta_between_nics; 2490 } 2491 continue; 2492 } 2493 2494 for (i = 0 ; i < QMAN_STREAMS ; i++) { 2495 internal_q_index = GAUDI_QUEUE_ID_NIC_0_0 + 2496 nic_id * QMAN_STREAMS + i; 2497 q = &gaudi->internal_qmans[internal_q_index]; 2498 qman_base_addr = (u64) q->pq_dma_addr; 2499 gaudi_init_nic_qman(hdev, nic_offset, (i & 0x3), 2500 qman_base_addr, nic_id); 2501 } 2502 2503 /* Enable the QMAN */ 2504 WREG32(mmNIC0_QM0_GLBL_CFG0 + nic_offset, NIC_QMAN_ENABLE); 2505 2506 nic_offset += nic_delta_between_qmans; 2507 if (nic_id & 1) { 2508 nic_offset -= (nic_delta_between_qmans * 2); 2509 nic_offset += nic_delta_between_nics; 2510 } 2511 2512 gaudi->hw_cap_initialized |= 1 << (HW_CAP_NIC_SHIFT + nic_id); 2513 } 2514 } 2515 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org