Hi Neil, Thank you for the patch! Yet something to improve: [auto build test ERROR on linux-sof-driver/master] [also build test ERROR on v4.19-rc8 next-20181017] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Shameer-Kolothum/arm64-SMMUv3-PMU-driver-with-IORT-support/20181017-063949 base: https://github.com/thesofproject/linux master config: xtensa-allyesconfig (attached as .config) compiler: xtensa-linux-gcc (GCC) 8.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=8.1.0 make.cross ARCH=xtensa All errors (new ones prefixed by >>): In file included from include/linux/kernel.h:11, from include/linux/list.h:9, from include/linux/resource_ext.h:17, from include/linux/acpi.h:26, from drivers//perf/arm_smmuv3_pmu.c:37: drivers//perf/arm_smmuv3_pmu.c: In function 'smmu_pmu_counter_set_value': include/linux/bitops.h:7:24: warning: left shift count >= width of type [-Wshift-count-overflow] #define BIT(nr) (1UL << (nr)) ^~ drivers//perf/arm_smmuv3_pmu.c:145:31: note: in expansion of macro 'BIT' if (smmu_pmu->counter_mask & BIT(32)) ^~~ drivers//perf/arm_smmuv3_pmu.c:146:3: error: implicit declaration of function 'writeq'; did you mean 'writel'? [-Werror=implicit-function-declaration] writeq(value, smmu_pmu->reloc_base + SMMU_PMCG_EVCNTR(idx, 8)); ^~~~~~ writel In file included from include/linux/kernel.h:11, from include/linux/list.h:9, from include/linux/resource_ext.h:17, from include/linux/acpi.h:26, from drivers//perf/arm_smmuv3_pmu.c:37: drivers//perf/arm_smmuv3_pmu.c: In function 'smmu_pmu_counter_get_value': include/linux/bitops.h:7:24: warning: left shift count >= width of type [-Wshift-count-overflow] #define BIT(nr) (1UL << (nr)) ^~ drivers//perf/arm_smmuv3_pmu.c:155:31: note: in expansion of macro 'BIT' if (smmu_pmu->counter_mask & BIT(32)) ^~~ drivers//perf/arm_smmuv3_pmu.c:156:11: error: implicit declaration of function 'readq'; did you mean 'readl'? [-Werror=implicit-function-declaration] value = readq(smmu_pmu->reloc_base + SMMU_PMCG_EVCNTR(idx, 8)); ^~~~~ readl drivers//perf/arm_smmuv3_pmu.c: In function 'smmu_pmu_reset': drivers//perf/arm_smmuv3_pmu.c:607:2: error: implicit declaration of function 'writeq_relaxed'; did you mean 'writel_relaxed'? [-Werror=implicit-function-declaration] writeq_relaxed(smmu_pmu->counter_present_mask, ^~~~~~~~~~~~~~ writel_relaxed drivers//perf/arm_smmuv3_pmu.c: In function 'smmu_pmu_probe': >> drivers//perf/arm_smmuv3_pmu.c:666:15: error: implicit declaration of function 'readq_relaxed'; did you mean 'readl_relaxed'? [-Werror=implicit-function-declaration] ceid_64[0] = readq_relaxed(smmu_pmu->reg_base + SMMU_PMCG_CEID0); ^~~~~~~~~~~~~ readl_relaxed drivers//perf/arm_smmuv3_pmu.c:687:64: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=] name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "smmuv3_pmcg_%llx", ~~~^ %x cc1: some warnings being treated as errors vim +666 drivers//perf/arm_smmuv3_pmu.c 601 602 static void smmu_pmu_reset(struct smmu_pmu *smmu_pmu) 603 { 604 smmu_pmu_disable(&smmu_pmu->pmu); 605 606 /* Disable counter and interrupt */ > 607 writeq_relaxed(smmu_pmu->counter_present_mask, 608 smmu_pmu->reg_base + SMMU_PMCG_CNTENCLR0); 609 writeq_relaxed(smmu_pmu->counter_present_mask, 610 smmu_pmu->reg_base + SMMU_PMCG_INTENCLR0); 611 writeq_relaxed(smmu_pmu->counter_present_mask, 612 smmu_pmu->reloc_base + SMMU_PMCG_OVSCLR0); 613 } 614 615 static int smmu_pmu_probe(struct platform_device *pdev) 616 { 617 struct smmu_pmu *smmu_pmu; 618 struct resource *res_0, *res_1; 619 u32 cfgr, reg_size; 620 u64 ceid_64[2]; 621 int irq, err; 622 char *name; 623 struct device *dev = &pdev->dev; 624 625 smmu_pmu = devm_kzalloc(dev, sizeof(*smmu_pmu), GFP_KERNEL); 626 if (!smmu_pmu) 627 return -ENOMEM; 628 629 smmu_pmu->dev = dev; 630 platform_set_drvdata(pdev, smmu_pmu); 631 632 smmu_pmu->pmu = (struct pmu) { 633 .task_ctx_nr = perf_invalid_context, 634 .pmu_enable = smmu_pmu_enable, 635 .pmu_disable = smmu_pmu_disable, 636 .event_init = smmu_pmu_event_init, 637 .add = smmu_pmu_event_add, 638 .del = smmu_pmu_event_del, 639 .start = smmu_pmu_event_start, 640 .stop = smmu_pmu_event_stop, 641 .read = smmu_pmu_event_read, 642 .attr_groups = smmu_pmu_attr_grps, 643 }; 644 645 res_0 = platform_get_resource(pdev, IORESOURCE_MEM, 0); 646 smmu_pmu->reg_base = devm_ioremap_resource(dev, res_0); 647 if (IS_ERR(smmu_pmu->reg_base)) 648 return PTR_ERR(smmu_pmu->reg_base); 649 650 cfgr = readl_relaxed(smmu_pmu->reg_base + SMMU_PMCG_CFGR); 651 652 /* Determine if page 1 is present */ 653 if (cfgr & SMMU_PMCG_CFGR_RELOC_CTRS) { 654 res_1 = platform_get_resource(pdev, IORESOURCE_MEM, 1); 655 smmu_pmu->reloc_base = devm_ioremap_resource(dev, res_1); 656 if (IS_ERR(smmu_pmu->reloc_base)) 657 return PTR_ERR(smmu_pmu->reloc_base); 658 } else { 659 smmu_pmu->reloc_base = smmu_pmu->reg_base; 660 } 661 662 irq = platform_get_irq(pdev, 0); 663 if (irq > 0) 664 smmu_pmu->irq = irq; 665 > 666 ceid_64[0] = readq_relaxed(smmu_pmu->reg_base + SMMU_PMCG_CEID0); 667 ceid_64[1] = readq_relaxed(smmu_pmu->reg_base + SMMU_PMCG_CEID1); 668 bitmap_from_arr32(smmu_pmu->supported_events, (u32 *)ceid_64, 669 SMMU_ARCH_MAX_EVENTS); 670 671 smmu_pmu->num_counters = FIELD_GET(SMMU_PMCG_CFGR_NCTR_MASK, cfgr) + 1; 672 smmu_pmu->counter_present_mask = GENMASK(smmu_pmu->num_counters - 1, 0); 673 674 smmu_pmu->sid_filter_global = !!(cfgr & SMMU_PMCG_CFGR_SID_FILTER_TYPE); 675 676 reg_size = FIELD_GET(SMMU_PMCG_CFGR_SIZE_MASK, cfgr); 677 smmu_pmu->counter_mask = GENMASK_ULL(reg_size, 0); 678 679 smmu_pmu_reset(smmu_pmu); 680 681 err = smmu_pmu_setup_irq(smmu_pmu); 682 if (err) { 683 dev_err(dev, "Setup irq failed, PMU @%pa\n", &res_0->start); 684 return err; 685 } 686 687 name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "smmuv3_pmcg_%llx", 688 (res_0->start) >> SMMU_PA_SHIFT); 689 if (!name) { 690 dev_err(dev, "Create name failed, PMU @%pa\n", &res_0->start); 691 return -EINVAL; 692 } 693 694 /* Pick one CPU to be the preferred one to use */ 695 smmu_pmu->on_cpu = get_cpu(); 696 WARN_ON(irq_set_affinity(smmu_pmu->irq, cpumask_of(smmu_pmu->on_cpu))); 697 698 err = cpuhp_state_add_instance_nocalls(cpuhp_state_num, 699 &smmu_pmu->node); 700 if (err) { 701 dev_err(dev, "Error %d registering hotplug, PMU @%pa\n", 702 err, &res_0->start); 703 goto out_cpuhp_err; 704 } 705 706 err = perf_pmu_register(&smmu_pmu->pmu, name, -1); 707 if (err) { 708 dev_err(dev, "Error %d registering PMU @%pa\n", 709 err, &res_0->start); 710 goto out_unregister; 711 } 712 713 put_cpu(); 714 dev_info(dev, "Registered PMU @ %pa using %d counters with %s filter settings\n", 715 &res_0->start, smmu_pmu->num_counters, 716 smmu_pmu->sid_filter_global ? "Global(Counter0)" : 717 "Individual"); 718 719 return 0; 720 721 out_unregister: 722 cpuhp_state_remove_instance_nocalls(cpuhp_state_num, &smmu_pmu->node); 723 out_cpuhp_err: 724 put_cpu(); 725 return err; 726 } 727 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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