Hi Krzysztof, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: b9bbe6ed63b2b9f2c9ee5cbd0f2c946a2723f4ce commit: e93a1695d7fb551376b1c1220a267d032b6ad159 iommu: Enable compile testing for some of drivers date: 3 months ago config: ia64-randconfig-s001-20200518 (attached as .config) reproduce: # apt-get install sparse # sparse version: v0.6.1-193-gb8fad4bc-dirty git checkout e93a1695d7fb551376b1c1220a267d032b6ad159 # save the attached .config to linux build tree make C=1 ARCH=ia64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>, old ones prefixed by <<): drivers/iommu/exynos-iommu.c: In function 'exynos_sysmmu_suspend': 673 | struct exynos_iommu_owner *owner = master->archdata.iommu; | ^ drivers/iommu/exynos-iommu.c: In function 'exynos_sysmmu_resume': drivers/iommu/exynos-iommu.c:691:54: error: 'struct dev_archdata' has no member named 'iommu' 691 | struct exynos_iommu_owner *owner = master->archdata.iommu; | ^ drivers/iommu/exynos-iommu.c: In function 'exynos_iommu_detach_device': drivers/iommu/exynos-iommu.c:840:50: error: 'struct dev_archdata' has no member named 'iommu' 840 | struct exynos_iommu_owner *owner = dev->archdata.iommu; | ^ drivers/iommu/exynos-iommu.c:176:40: error: 'struct dev_archdata' has no member named 'iommu' 176 | #define has_sysmmu(dev) (dev->archdata.iommu != NULL) | ^ 846 | if (!has_sysmmu(dev) || owner->domain != iommu_domain) | ^~~~~~~~~~ drivers/iommu/exynos-iommu.c: In function 'exynos_iommu_attach_device': drivers/iommu/exynos-iommu.c:878:50: error: 'struct dev_archdata' has no member named 'iommu' 878 | struct exynos_iommu_owner *owner = dev->archdata.iommu; | ^ drivers/iommu/exynos-iommu.c:176:40: error: 'struct dev_archdata' has no member named 'iommu' 176 | #define has_sysmmu(dev) (dev->archdata.iommu != NULL) | ^ drivers/iommu/exynos-iommu.c:884:7: note: in expansion of macro 'has_sysmmu' 884 | if (!has_sysmmu(dev)) | ^~~~~~~~~~ drivers/iommu/exynos-iommu.c: In function 'exynos_iommu_add_device': drivers/iommu/exynos-iommu.c:1240:50: error: 'struct dev_archdata' has no member named 'iommu' 1240 | struct exynos_iommu_owner *owner = dev->archdata.iommu; | ^ drivers/iommu/exynos-iommu.c:176:40: error: 'struct dev_archdata' has no member named 'iommu' 176 | #define has_sysmmu(dev) (dev->archdata.iommu != NULL) | ^ drivers/iommu/exynos-iommu.c:1244:7: note: in expansion of macro 'has_sysmmu' 1244 | if (!has_sysmmu(dev)) | ^~~~~~~~~~ drivers/iommu/exynos-iommu.c: In function 'exynos_iommu_remove_device': drivers/iommu/exynos-iommu.c:1269:50: error: 'struct dev_archdata' has no member named 'iommu' 1269 | struct exynos_iommu_owner *owner = dev->archdata.iommu; | ^ drivers/iommu/exynos-iommu.c:176:40: error: 'struct dev_archdata' has no member named 'iommu' 176 | #define has_sysmmu(dev) (dev->archdata.iommu != NULL) | ^ drivers/iommu/exynos-iommu.c:1272:7: note: in expansion of macro 'has_sysmmu' 1272 | if (!has_sysmmu(dev)) | ^~~~~~~~~~ drivers/iommu/exynos-iommu.c: In function 'exynos_iommu_of_xlate': drivers/iommu/exynos-iommu.c:1294:50: error: 'struct dev_archdata' has no member named 'iommu' 1294 | struct exynos_iommu_owner *owner = dev->archdata.iommu; | ^ drivers/iommu/exynos-iommu.c:1312:16: error: 'struct dev_archdata' has no member named 'iommu' 1312 | dev->archdata.iommu = owner; | ^ sparse warnings: (new ones prefixed by >>) drivers/iommu/exynos-iommu.c:673:68: sparse: sparse: using member 'iommu' in incomplete struct dev_archdata drivers/iommu/exynos-iommu.c:691:68: sparse: sparse: using member 'iommu' in incomplete struct dev_archdata drivers/iommu/exynos-iommu.c:840:57: sparse: sparse: using member 'iommu' in incomplete struct dev_archdata drivers/iommu/exynos-iommu.c:846:14: sparse: sparse: using member 'iommu' in incomplete struct dev_archdata drivers/iommu/exynos-iommu.c:878:57: sparse: sparse: using member 'iommu' in incomplete struct dev_archdata drivers/iommu/exynos-iommu.c:884:14: sparse: sparse: using member 'iommu' in incomplete struct dev_archdata drivers/iommu/exynos-iommu.c:1240:57: sparse: sparse: using member 'iommu' in incomplete struct dev_archdata drivers/iommu/exynos-iommu.c:1244:14: sparse: sparse: using member 'iommu' in incomplete struct dev_archdata drivers/iommu/exynos-iommu.c:1269:57: sparse: sparse: using member 'iommu' in incomplete struct dev_archdata drivers/iommu/exynos-iommu.c:1272:14: sparse: sparse: using member 'iommu' in incomplete struct dev_archdata drivers/iommu/exynos-iommu.c:1294:57: sparse: sparse: using member 'iommu' in incomplete struct dev_archdata drivers/iommu/exynos-iommu.c:1312:30: sparse: sparse: using member 'iommu' in incomplete struct dev_archdata include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restrunsigned int [usertype] value @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] vim +673 drivers/iommu/exynos-iommu.c 2a96536e77b43c KyongHo Cho 2012-05-12 666 9b265536c27116 Marek Szyprowski 2016-11-14 667 static int __maybe_unused exynos_sysmmu_suspend(struct device *dev) 622015e407b082 Marek Szyprowski 2015-05-19 668 { 622015e407b082 Marek Szyprowski 2015-05-19 669 struct sysmmu_drvdata *data = dev_get_drvdata(dev); 47a574fffca102 Marek Szyprowski 2016-11-14 670 struct device *master = data->master; 622015e407b082 Marek Szyprowski 2015-05-19 671 47a574fffca102 Marek Szyprowski 2016-11-14 672 if (master) { 9b265536c27116 Marek Szyprowski 2016-11-14 @673 struct exynos_iommu_owner *owner = master->archdata.iommu; 9b265536c27116 Marek Szyprowski 2016-11-14 674 9b265536c27116 Marek Szyprowski 2016-11-14 675 mutex_lock(&owner->rpm_lock); 92798b4566b1ad Marek Szyprowski 2016-11-14 676 if (data->domain) { 92798b4566b1ad Marek Szyprowski 2016-11-14 677 dev_dbg(data->sysmmu, "saving state\n"); 92798b4566b1ad Marek Szyprowski 2016-11-14 678 __sysmmu_disable(data); 92798b4566b1ad Marek Szyprowski 2016-11-14 679 } 9b265536c27116 Marek Szyprowski 2016-11-14 680 mutex_unlock(&owner->rpm_lock); 622015e407b082 Marek Szyprowski 2015-05-19 681 } 622015e407b082 Marek Szyprowski 2015-05-19 682 return 0; 622015e407b082 Marek Szyprowski 2015-05-19 683 } 622015e407b082 Marek Szyprowski 2015-05-19 684 9b265536c27116 Marek Szyprowski 2016-11-14 685 static int __maybe_unused exynos_sysmmu_resume(struct device *dev) 622015e407b082 Marek Szyprowski 2015-05-19 686 { 622015e407b082 Marek Szyprowski 2015-05-19 687 struct sysmmu_drvdata *data = dev_get_drvdata(dev); 47a574fffca102 Marek Szyprowski 2016-11-14 688 struct device *master = data->master; 622015e407b082 Marek Szyprowski 2015-05-19 689 47a574fffca102 Marek Szyprowski 2016-11-14 690 if (master) { 9b265536c27116 Marek Szyprowski 2016-11-14 691 struct exynos_iommu_owner *owner = master->archdata.iommu; 9b265536c27116 Marek Szyprowski 2016-11-14 692 9b265536c27116 Marek Szyprowski 2016-11-14 693 mutex_lock(&owner->rpm_lock); 92798b4566b1ad Marek Szyprowski 2016-11-14 694 if (data->domain) { 92798b4566b1ad Marek Szyprowski 2016-11-14 695 dev_dbg(data->sysmmu, "restoring state\n"); 47a574fffca102 Marek Szyprowski 2016-11-14 696 __sysmmu_enable(data); 622015e407b082 Marek Szyprowski 2015-05-19 697 } 9b265536c27116 Marek Szyprowski 2016-11-14 698 mutex_unlock(&owner->rpm_lock); 92798b4566b1ad Marek Szyprowski 2016-11-14 699 } 622015e407b082 Marek Szyprowski 2015-05-19 700 return 0; 622015e407b082 Marek Szyprowski 2015-05-19 701 } 622015e407b082 Marek Szyprowski 2015-05-19 702 622015e407b082 Marek Szyprowski 2015-05-19 703 static const struct dev_pm_ops sysmmu_pm_ops = { 9b265536c27116 Marek Szyprowski 2016-11-14 704 SET_RUNTIME_PM_OPS(exynos_sysmmu_suspend, exynos_sysmmu_resume, NULL) 2f5f44f205cc95 Marek Szyprowski 2016-11-14 705 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, 9b265536c27116 Marek Szyprowski 2016-11-14 706 pm_runtime_force_resume) 622015e407b082 Marek Szyprowski 2015-05-19 707 }; 622015e407b082 Marek Szyprowski 2015-05-19 708 9d25e3cc83d731 Marek Szyprowski 2017-10-09 709 static const struct of_device_id sysmmu_of_match[] = { 6b21a5db36427d Cho KyongHo 2014-05-12 710 { .compatible = "samsung,exynos-sysmmu", }, 6b21a5db36427d Cho KyongHo 2014-05-12 711 { }, 6b21a5db36427d Cho KyongHo 2014-05-12 712 }; 6b21a5db36427d Cho KyongHo 2014-05-12 713 6b21a5db36427d Cho KyongHo 2014-05-12 714 static struct platform_driver exynos_sysmmu_driver __refdata = { 2a96536e77b43c KyongHo Cho 2012-05-12 715 .probe = exynos_sysmmu_probe, 2a96536e77b43c KyongHo Cho 2012-05-12 716 .driver = { 2a96536e77b43c KyongHo Cho 2012-05-12 717 .name = "exynos-sysmmu", 6b21a5db36427d Cho KyongHo 2014-05-12 718 .of_match_table = sysmmu_of_match, 622015e407b082 Marek Szyprowski 2015-05-19 719 .pm = &sysmmu_pm_ops, b54b874fbaf5e0 Marek Szyprowski 2016-05-20 720 .suppress_bind_attrs = true, 2a96536e77b43c KyongHo Cho 2012-05-12 721 } 2a96536e77b43c KyongHo Cho 2012-05-12 722 }; 2a96536e77b43c KyongHo Cho 2012-05-12 723 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 724 static inline void update_pte(sysmmu_pte_t *ent, sysmmu_pte_t val) 2a96536e77b43c KyongHo Cho 2012-05-12 725 { 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 726 dma_sync_single_for_cpu(dma_dev, virt_to_phys(ent), sizeof(*ent), 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 727 DMA_TO_DEVICE); 6ae5343c26f9cb Ben Dooks 2016-06-08 @728 *ent = cpu_to_le32(val); 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 729 dma_sync_single_for_device(dma_dev, virt_to_phys(ent), sizeof(*ent), 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 730 DMA_TO_DEVICE); 2a96536e77b43c KyongHo Cho 2012-05-12 731 } 2a96536e77b43c KyongHo Cho 2012-05-12 732 e1fd1eaa3323b3 Joerg Roedel 2015-03-26 733 static struct iommu_domain *exynos_iommu_domain_alloc(unsigned type) 2a96536e77b43c KyongHo Cho 2012-05-12 734 { bfa004893c55ea Marek Szyprowski 2015-05-19 735 struct exynos_iommu_domain *domain; 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 736 dma_addr_t handle; 66a7ed84b345d6 Cho KyongHo 2014-05-12 737 int i; 2a96536e77b43c KyongHo Cho 2012-05-12 738 740a01eee9ada9 Marek Szyprowski 2016-02-18 739 /* Check if correct PTE offsets are initialized */ 740a01eee9ada9 Marek Szyprowski 2016-02-18 740 BUG_ON(PG_ENT_SHIFT < 0 || !dma_dev); e1fd1eaa3323b3 Joerg Roedel 2015-03-26 741 bfa004893c55ea Marek Szyprowski 2015-05-19 742 domain = kzalloc(sizeof(*domain), GFP_KERNEL); bfa004893c55ea Marek Szyprowski 2015-05-19 743 if (!domain) e1fd1eaa3323b3 Joerg Roedel 2015-03-26 744 return NULL; 2a96536e77b43c KyongHo Cho 2012-05-12 745 58c6f6a3dc97ed Marek Szyprowski 2016-02-18 746 if (type == IOMMU_DOMAIN_DMA) { 58c6f6a3dc97ed Marek Szyprowski 2016-02-18 747 if (iommu_get_dma_cookie(&domain->domain) != 0) 58c6f6a3dc97ed Marek Szyprowski 2016-02-18 748 goto err_pgtable; 58c6f6a3dc97ed Marek Szyprowski 2016-02-18 749 } else if (type != IOMMU_DOMAIN_UNMANAGED) { 58c6f6a3dc97ed Marek Szyprowski 2016-02-18 750 goto err_pgtable; 58c6f6a3dc97ed Marek Szyprowski 2016-02-18 751 } 58c6f6a3dc97ed Marek Szyprowski 2016-02-18 752 bfa004893c55ea Marek Szyprowski 2015-05-19 753 domain->pgtable = (sysmmu_pte_t *)__get_free_pages(GFP_KERNEL, 2); bfa004893c55ea Marek Szyprowski 2015-05-19 754 if (!domain->pgtable) 58c6f6a3dc97ed Marek Szyprowski 2016-02-18 755 goto err_dma_cookie; 2a96536e77b43c KyongHo Cho 2012-05-12 756 bfa004893c55ea Marek Szyprowski 2015-05-19 757 domain->lv2entcnt = (short *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, 1); bfa004893c55ea Marek Szyprowski 2015-05-19 758 if (!domain->lv2entcnt) 2a96536e77b43c KyongHo Cho 2012-05-12 759 goto err_counter; 2a96536e77b43c KyongHo Cho 2012-05-12 760 f171abab8f1a75 Sachin Kamat 2014-08-04 761 /* Workaround for System MMU v3.3 to prevent caching 1MiB mapping */ e75276638c1423 Marek Szyprowski 2017-03-24 762 for (i = 0; i < NUM_LV1ENTRIES; i++) e75276638c1423 Marek Szyprowski 2017-03-24 763 domain->pgtable[i] = ZERO_LV2LINK; 66a7ed84b345d6 Cho KyongHo 2014-05-12 764 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 765 handle = dma_map_single(dma_dev, domain->pgtable, LV1TABLE_SIZE, 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 766 DMA_TO_DEVICE); 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 767 /* For mapping page table entries we rely on dma == phys */ 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 768 BUG_ON(handle != virt_to_phys(domain->pgtable)); 0d6d3da46ac594 Marek Szyprowski 2017-01-09 769 if (dma_mapping_error(dma_dev, handle)) 0d6d3da46ac594 Marek Szyprowski 2017-01-09 770 goto err_lv2ent; 2a96536e77b43c KyongHo Cho 2012-05-12 771 bfa004893c55ea Marek Szyprowski 2015-05-19 772 spin_lock_init(&domain->lock); bfa004893c55ea Marek Szyprowski 2015-05-19 773 spin_lock_init(&domain->pgtablelock); bfa004893c55ea Marek Szyprowski 2015-05-19 774 INIT_LIST_HEAD(&domain->clients); 2a96536e77b43c KyongHo Cho 2012-05-12 775 bfa004893c55ea Marek Szyprowski 2015-05-19 776 domain->domain.geometry.aperture_start = 0; bfa004893c55ea Marek Szyprowski 2015-05-19 777 domain->domain.geometry.aperture_end = ~0UL; bfa004893c55ea Marek Szyprowski 2015-05-19 778 domain->domain.geometry.force_aperture = true; 3177bb76a8c510 Joerg Roedel 2012-07-11 779 bfa004893c55ea Marek Szyprowski 2015-05-19 780 return &domain->domain; 2a96536e77b43c KyongHo Cho 2012-05-12 781 0d6d3da46ac594 Marek Szyprowski 2017-01-09 782 err_lv2ent: 0d6d3da46ac594 Marek Szyprowski 2017-01-09 783 free_pages((unsigned long)domain->lv2entcnt, 1); 2a96536e77b43c KyongHo Cho 2012-05-12 784 err_counter: bfa004893c55ea Marek Szyprowski 2015-05-19 785 free_pages((unsigned long)domain->pgtable, 2); 58c6f6a3dc97ed Marek Szyprowski 2016-02-18 786 err_dma_cookie: 58c6f6a3dc97ed Marek Szyprowski 2016-02-18 787 if (type == IOMMU_DOMAIN_DMA) 58c6f6a3dc97ed Marek Szyprowski 2016-02-18 788 iommu_put_dma_cookie(&domain->domain); 2a96536e77b43c KyongHo Cho 2012-05-12 789 err_pgtable: bfa004893c55ea Marek Szyprowski 2015-05-19 790 kfree(domain); e1fd1eaa3323b3 Joerg Roedel 2015-03-26 791 return NULL; 2a96536e77b43c KyongHo Cho 2012-05-12 792 } 2a96536e77b43c KyongHo Cho 2012-05-12 793 bfa004893c55ea Marek Szyprowski 2015-05-19 794 static void exynos_iommu_domain_free(struct iommu_domain *iommu_domain) 2a96536e77b43c KyongHo Cho 2012-05-12 795 { bfa004893c55ea Marek Szyprowski 2015-05-19 796 struct exynos_iommu_domain *domain = to_exynos_domain(iommu_domain); 469acebe4a6890 Marek Szyprowski 2015-05-19 797 struct sysmmu_drvdata *data, *next; 2a96536e77b43c KyongHo Cho 2012-05-12 798 unsigned long flags; 2a96536e77b43c KyongHo Cho 2012-05-12 799 int i; 2a96536e77b43c KyongHo Cho 2012-05-12 800 bfa004893c55ea Marek Szyprowski 2015-05-19 801 WARN_ON(!list_empty(&domain->clients)); 2a96536e77b43c KyongHo Cho 2012-05-12 802 bfa004893c55ea Marek Szyprowski 2015-05-19 803 spin_lock_irqsave(&domain->lock, flags); 2a96536e77b43c KyongHo Cho 2012-05-12 804 bfa004893c55ea Marek Szyprowski 2015-05-19 805 list_for_each_entry_safe(data, next, &domain->clients, domain_node) { e11723000f1641 Marek Szyprowski 2016-11-14 806 spin_lock(&data->lock); b0d4c861a99d00 Marek Szyprowski 2016-11-14 807 __sysmmu_disable(data); 47a574fffca102 Marek Szyprowski 2016-11-14 808 data->pgtable = 0; 47a574fffca102 Marek Szyprowski 2016-11-14 809 data->domain = NULL; 469acebe4a6890 Marek Szyprowski 2015-05-19 810 list_del_init(&data->domain_node); e11723000f1641 Marek Szyprowski 2016-11-14 811 spin_unlock(&data->lock); 2a96536e77b43c KyongHo Cho 2012-05-12 812 } 2a96536e77b43c KyongHo Cho 2012-05-12 813 bfa004893c55ea Marek Szyprowski 2015-05-19 814 spin_unlock_irqrestore(&domain->lock, flags); 2a96536e77b43c KyongHo Cho 2012-05-12 815 58c6f6a3dc97ed Marek Szyprowski 2016-02-18 816 if (iommu_domain->type == IOMMU_DOMAIN_DMA) 58c6f6a3dc97ed Marek Szyprowski 2016-02-18 817 iommu_put_dma_cookie(iommu_domain); 58c6f6a3dc97ed Marek Szyprowski 2016-02-18 818 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 819 dma_unmap_single(dma_dev, virt_to_phys(domain->pgtable), LV1TABLE_SIZE, 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 820 DMA_TO_DEVICE); 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 821 2a96536e77b43c KyongHo Cho 2012-05-12 822 for (i = 0; i < NUM_LV1ENTRIES; i++) 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 823 if (lv1ent_page(domain->pgtable + i)) { 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 824 phys_addr_t base = lv2table_base(domain->pgtable + i); 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 825 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 826 dma_unmap_single(dma_dev, base, LV2TABLE_SIZE, 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 827 DMA_TO_DEVICE); 734c3c732ca91a Cho KyongHo 2014-05-12 828 kmem_cache_free(lv2table_kmem_cache, 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 829 phys_to_virt(base)); 5e3435eb7e1d8c Marek Szyprowski 2016-02-18 830 } 2a96536e77b43c KyongHo Cho 2012-05-12 831 bfa004893c55ea Marek Szyprowski 2015-05-19 832 free_pages((unsigned long)domain->pgtable, 2); bfa004893c55ea Marek Szyprowski 2015-05-19 833 free_pages((unsigned long)domain->lv2entcnt, 1); bfa004893c55ea Marek Szyprowski 2015-05-19 834 kfree(domain); 2a96536e77b43c KyongHo Cho 2012-05-12 835 } 2a96536e77b43c KyongHo Cho 2012-05-12 836 5fa61cbff16224 Marek Szyprowski 2016-02-18 837 static void exynos_iommu_detach_device(struct iommu_domain *iommu_domain, 5fa61cbff16224 Marek Szyprowski 2016-02-18 838 struct device *dev) 5fa61cbff16224 Marek Szyprowski 2016-02-18 839 { 5fa61cbff16224 Marek Szyprowski 2016-02-18 840 struct exynos_iommu_owner *owner = dev->archdata.iommu; 5fa61cbff16224 Marek Szyprowski 2016-02-18 841 struct exynos_iommu_domain *domain = to_exynos_domain(iommu_domain); 5fa61cbff16224 Marek Szyprowski 2016-02-18 842 phys_addr_t pagetable = virt_to_phys(domain->pgtable); 5fa61cbff16224 Marek Szyprowski 2016-02-18 843 struct sysmmu_drvdata *data, *next; 5fa61cbff16224 Marek Szyprowski 2016-02-18 844 unsigned long flags; 5fa61cbff16224 Marek Szyprowski 2016-02-18 845 5fa61cbff16224 Marek Szyprowski 2016-02-18 @846 if (!has_sysmmu(dev) || owner->domain != iommu_domain) 5fa61cbff16224 Marek Szyprowski 2016-02-18 847 return; 5fa61cbff16224 Marek Szyprowski 2016-02-18 848 9b265536c27116 Marek Szyprowski 2016-11-14 849 mutex_lock(&owner->rpm_lock); 9b265536c27116 Marek Szyprowski 2016-11-14 850 9b265536c27116 Marek Szyprowski 2016-11-14 851 list_for_each_entry(data, &owner->controllers, owner_node) { 9b265536c27116 Marek Szyprowski 2016-11-14 852 pm_runtime_get_noresume(data->sysmmu); 9b265536c27116 Marek Szyprowski 2016-11-14 853 if (pm_runtime_active(data->sysmmu)) e11723000f1641 Marek Szyprowski 2016-11-14 854 __sysmmu_disable(data); e11723000f1641 Marek Szyprowski 2016-11-14 855 pm_runtime_put(data->sysmmu); e11723000f1641 Marek Szyprowski 2016-11-14 856 } e11723000f1641 Marek Szyprowski 2016-11-14 857 5fa61cbff16224 Marek Szyprowski 2016-02-18 858 spin_lock_irqsave(&domain->lock, flags); 5fa61cbff16224 Marek Szyprowski 2016-02-18 859 list_for_each_entry_safe(data, next, &domain->clients, domain_node) { e11723000f1641 Marek Szyprowski 2016-11-14 860 spin_lock(&data->lock); 47a574fffca102 Marek Szyprowski 2016-11-14 861 data->pgtable = 0; 47a574fffca102 Marek Szyprowski 2016-11-14 862 data->domain = NULL; 5fa61cbff16224 Marek Szyprowski 2016-02-18 863 list_del_init(&data->domain_node); e11723000f1641 Marek Szyprowski 2016-11-14 864 spin_unlock(&data->lock); 5fa61cbff16224 Marek Szyprowski 2016-02-18 865 } e11723000f1641 Marek Szyprowski 2016-11-14 866 owner->domain = NULL; 5fa61cbff16224 Marek Szyprowski 2016-02-18 867 spin_unlock_irqrestore(&domain->lock, flags); 5fa61cbff16224 Marek Szyprowski 2016-02-18 868 9b265536c27116 Marek Szyprowski 2016-11-14 869 mutex_unlock(&owner->rpm_lock); 5fa61cbff16224 Marek Szyprowski 2016-02-18 870 b0d4c861a99d00 Marek Szyprowski 2016-11-14 871 dev_dbg(dev, "%s: Detached IOMMU with pgtable %pa\n", __func__, b0d4c861a99d00 Marek Szyprowski 2016-11-14 872 &pagetable); 5fa61cbff16224 Marek Szyprowski 2016-02-18 873 } 5fa61cbff16224 Marek Szyprowski 2016-02-18 874 :::::: The code at line 673 was first introduced by commit :::::: 9b265536c271163ec4acc140ca0a40a732971cbf iommu/exynos: Add runtime pm support :::::: TO: Marek Szyprowski <m.szyprowski(a)samsung.com&gt; :::::: CC: Joerg Roedel <jroedel(a)suse.de&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org