Hi Tanmay, kernel test robot noticed the following build warnings: [auto build test WARNING on 0496190c4d42965acb31b9da1b6dac3509791062] url: https://github.com/intel-lab-lkp/linux/commits/Tanmay-Shah/drivers-remoteproc-xlnx-add-attach-detach-support/20240503-071225 base: 0496190c4d42965acb31b9da1b6dac3509791062 patch link: https://lore.kernel.org/r/20240502231021.370047-2-tanmay.shah%40amd.com patch subject: [PATCH 1/2] drivers: remoteproc: xlnx: add attach detach support config: arm64-randconfig-r113-20240506 (https://download.01.org/0day-ci/archive/20240506/202405060611.jBQBF7iB-lkp@xxxxxxxxx/config) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20240506/202405060611.jBQBF7iB-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202405060611.jBQBF7iB-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) drivers/remoteproc/xlnx_r5_remoteproc.c:404:20: sparse: sparse: cast removes address space '__iomem' of expression drivers/remoteproc/xlnx_r5_remoteproc.c:522:20: sparse: sparse: cast removes address space '__iomem' of expression >> drivers/remoteproc/xlnx_r5_remoteproc.c:731:21: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct rsc_tbl_data *rsc_data_va @@ got void [noderef] __iomem * @@ drivers/remoteproc/xlnx_r5_remoteproc.c:731:21: sparse: expected struct rsc_tbl_data *rsc_data_va drivers/remoteproc/xlnx_r5_remoteproc.c:731:21: sparse: got void [noderef] __iomem * >> drivers/remoteproc/xlnx_r5_remoteproc.c:748:18: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct resource_table *rsc_addr @@ got void [noderef] __iomem * @@ drivers/remoteproc/xlnx_r5_remoteproc.c:748:18: sparse: expected struct resource_table *rsc_addr drivers/remoteproc/xlnx_r5_remoteproc.c:748:18: sparse: got void [noderef] __iomem * >> drivers/remoteproc/xlnx_r5_remoteproc.c:802:24: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got struct resource_table *rsc_tbl_va @@ drivers/remoteproc/xlnx_r5_remoteproc.c:802:24: sparse: expected void volatile [noderef] __iomem *addr drivers/remoteproc/xlnx_r5_remoteproc.c:802:24: sparse: got struct resource_table *rsc_tbl_va vim +731 drivers/remoteproc/xlnx_r5_remoteproc.c 702 703 static int zynqmp_r5_get_rsc_table_va(struct zynqmp_r5_core *r5_core) 704 { 705 struct device *dev = r5_core->dev; 706 struct rsc_tbl_data *rsc_data_va; 707 struct resource_table *rsc_addr; 708 struct resource res_mem; 709 struct device_node *np; 710 int ret; 711 712 /** 713 * It is expected from remote processor firmware to provide resource 714 * table address via struct rsc_tbl_data data structure. 715 * Start address of first entry under "memory-region" property list 716 * contains that data structure which holds resource table address, size 717 * and some magic number to validate correct resource table entry. 718 */ 719 np = of_parse_phandle(r5_core->np, "memory-region", 0); 720 if (!np) { 721 dev_err(dev, "failed to get memory region dev node\n"); 722 return -EINVAL; 723 } 724 725 ret = of_address_to_resource(np, 0, &res_mem); 726 if (ret) { 727 dev_err(dev, "failed to get memory-region resource addr\n"); 728 return -EINVAL; 729 } 730 > 731 rsc_data_va = devm_ioremap_wc(dev, res_mem.start, 732 sizeof(struct rsc_tbl_data)); 733 if (!rsc_data_va) { 734 dev_err(dev, "failed to map resource table data address\n"); 735 return -EIO; 736 } 737 738 /** 739 * If RSC_TBL_XLNX_MAGIC number and its complement isn't found then 740 * do not consider resource table address valid and don't attach 741 */ 742 if (rsc_data_va->magic_num != RSC_TBL_XLNX_MAGIC || 743 rsc_data_va->comp_magic_num != ~RSC_TBL_XLNX_MAGIC) { 744 dev_dbg(dev, "invalid magic number, won't attach\n"); 745 return -EINVAL; 746 } 747 > 748 rsc_addr = ioremap_wc(rsc_data_va->rsc_tbl, 749 rsc_data_va->rsc_tbl_size); 750 if (!rsc_addr) { 751 dev_err(dev, "failed to get rsc_addr\n"); 752 return -EINVAL; 753 } 754 755 /** 756 * As of now resource table version 1 is expected. Don't fail to attach 757 * but warn users about it. 758 */ 759 if (rsc_addr->ver != 1) 760 dev_warn(dev, "unexpected resource table version %d\n", 761 rsc_addr->ver); 762 763 r5_core->rsc_tbl_size = rsc_data_va->rsc_tbl_size; 764 r5_core->rsc_tbl_va = rsc_addr; 765 766 return 0; 767 } 768 769 static int zynqmp_r5_attach(struct rproc *rproc) 770 { 771 struct zynqmp_r5_core *r5_core = rproc->priv; 772 int i, pm_domain_id, ret; 773 774 /* 775 * Firmware is loaded in TCM. Request TCM power domains to notify 776 * platform management controller that TCM is in use. This will be 777 * released during unprepare callback. 778 */ 779 for (i = 0; i < r5_core->tcm_bank_count; i++) { 780 pm_domain_id = r5_core->tcm_banks[i]->pm_domain_id; 781 ret = zynqmp_pm_request_node(pm_domain_id, 782 ZYNQMP_PM_CAPABILITY_ACCESS, 0, 783 ZYNQMP_PM_REQUEST_ACK_BLOCKING); 784 if (ret < 0) 785 pr_warn("TCM %d can't be requested\n", i); 786 } 787 788 return 0; 789 } 790 791 static int zynqmp_r5_detach(struct rproc *rproc) 792 { 793 struct zynqmp_r5_core *r5_core = rproc->priv; 794 795 /* 796 * Generate last notification to remote after clearing virtio flag. 797 * Remote can avoid polling on virtio reset flag if kick is generated 798 * during detach by host and check virtio reset flag on kick interrupt. 799 */ 800 zynqmp_r5_rproc_kick(rproc, 0); 801 > 802 iounmap(r5_core->rsc_tbl_va); 803 r5_core->rsc_tbl_va = NULL; 804 805 return 0; 806 } 807 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
