Hi Nobuhiro, I love your patch! Yet something to improve: [auto build test ERROR on joro-iommu/next] [also build test ERROR on arm-perf/for-next/perf soc/for-next linus/master v5.18 next-20220524] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/intel-lab-lkp/linux/commits/Nobuhiro-Iwamatsu/Add-Visconti5-IOMMU-driver/20220525-093326 base: https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git next config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20220525/202205251708.q7cwjpF8-lkp@xxxxxxxxx/config) compiler: alpha-linux-gcc (GCC) 11.3.0 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://github.com/intel-lab-lkp/linux/commit/69bb4f3c2ef0bb1f65922bc72bb31109897a6393 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Nobuhiro-Iwamatsu/Add-Visconti5-IOMMU-driver/20220525-093326 git checkout 69bb4f3c2ef0bb1f65922bc72bb31109897a6393 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=alpha SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> Note: the linux-review/Nobuhiro-Iwamatsu/Add-Visconti5-IOMMU-driver/20220525-093326 HEAD 07739c72b066c0781c371eec7614ed876441e8dd builds fine. It only hurts bisectability. All errors (new ones prefixed by >>): >> drivers/iommu/visconti-atu.c:47:29: error: field 'iommu' has incomplete type 47 | struct iommu_device iommu; | ^~~~~ >> drivers/iommu/visconti-atu.c:62:29: error: field 'io_domain' has incomplete type 62 | struct iommu_domain io_domain; | ^~~~~~~~~ In file included from include/linux/bits.h:22, from include/linux/ratelimit_types.h:5, from include/linux/ratelimit.h:5, from include/linux/dev_printk.h:16, from include/linux/device.h:15, from include/linux/dma-mapping.h:7, from drivers/iommu/visconti-atu.c:12: drivers/iommu/visconti-atu.c: In function 'to_atu_domain': include/linux/compiler_types.h:293:27: error: expression in static assertion is not an integer 293 | #define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/container_of.h:19:9: note: in expansion of macro 'static_assert' 19 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \ | ^~~~~~~~~~~~~ include/linux/container_of.h:19:23: note: in expansion of macro '__same_type' 19 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \ | ^~~~~~~~~~~ drivers/iommu/visconti-atu.c:70:16: note: in expansion of macro 'container_of' 70 | return container_of(domain, struct visconti_atu_domain, io_domain); | ^~~~~~~~~~~~ drivers/iommu/visconti-atu.c: In function 'visconti_atu_attach_device': >> drivers/iommu/visconti-atu.c:121:43: error: implicit declaration of function 'dev_iommu_priv_get' [-Werror=implicit-function-declaration] 121 | struct visconti_atu_device *atu = dev_iommu_priv_get(dev); | ^~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:121:43: warning: initialization of 'struct visconti_atu_device *' from 'int' makes pointer from integer without a cast [-Wint-conversion] drivers/iommu/visconti-atu.c: In function 'visconti_atu_detach_device': drivers/iommu/visconti-atu.c:150:43: warning: initialization of 'struct visconti_atu_device *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 150 | struct visconti_atu_device *atu = dev_iommu_priv_get(dev); | ^~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c: At top level: drivers/iommu/visconti-atu.c:196:41: warning: 'struct iommu_iotlb_gather' declared inside parameter list will not be visible outside of this definition or declaration 196 | struct iommu_iotlb_gather *iotlb_gather) | ^~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c: In function 'visconti_atu_of_xlate': >> drivers/iommu/visconti-atu.c:262:17: error: implicit declaration of function 'dev_iommu_priv_set' [-Werror=implicit-function-declaration] 262 | dev_iommu_priv_set(dev, platform_get_drvdata(pdev)); | ^~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c: In function 'visconti_atu_domain_alloc': >> drivers/iommu/visconti-atu.c:273:21: error: 'IOMMU_DOMAIN_UNMANAGED' undeclared (first use in this function) 273 | if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_DMA) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:273:21: note: each undeclared identifier is reported only once for each function it appears in >> drivers/iommu/visconti-atu.c:273:55: error: 'IOMMU_DOMAIN_DMA' undeclared (first use in this function) 273 | if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_DMA) | ^~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c: In function 'visconti_atu_probe_device': >> drivers/iommu/visconti-atu.c:298:39: error: implicit declaration of function 'dev_iommu_fwspec_get' [-Werror=implicit-function-declaration] 298 | struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); | ^~~~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:298:39: warning: initialization of 'struct iommu_fwspec *' from 'int' makes pointer from integer without a cast [-Wint-conversion] >> drivers/iommu/visconti-atu.c:301:30: error: invalid use of undefined type 'struct iommu_fwspec' 301 | if (!fwspec || fwspec->ops != &visconti_atu_ops) | ^~ drivers/iommu/visconti-atu.c:304:13: warning: assignment to 'struct visconti_atu_device *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 304 | atu = dev_iommu_priv_get(dev); | ^ drivers/iommu/visconti-atu.c: In function 'visconti_atu_release_device': drivers/iommu/visconti-atu.c:310:43: warning: initialization of 'struct visconti_atu_device *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 310 | struct visconti_atu_device *atu = dev_iommu_priv_get(dev); | ^~~~~~~~~~~~~~~~~~ >> drivers/iommu/visconti-atu.c:315:9: error: implicit declaration of function 'iommu_fwspec_free' [-Werror=implicit-function-declaration] 315 | iommu_fwspec_free(dev); | ^~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c: At top level: >> drivers/iommu/visconti-atu.c:318:21: error: variable 'visconti_atu_ops' has initializer but incomplete type 318 | static const struct iommu_ops visconti_atu_ops = { | ^~~~~~~~~ >> drivers/iommu/visconti-atu.c:319:10: error: 'const struct iommu_ops' has no member named 'domain_alloc' 319 | .domain_alloc = visconti_atu_domain_alloc, | ^~~~~~~~~~~~ drivers/iommu/visconti-atu.c:319:25: warning: excess elements in struct initializer 319 | .domain_alloc = visconti_atu_domain_alloc, | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:319:25: note: (near initialization for 'visconti_atu_ops') >> drivers/iommu/visconti-atu.c:320:10: error: 'const struct iommu_ops' has no member named 'probe_device' 320 | .probe_device = visconti_atu_probe_device, | ^~~~~~~~~~~~ drivers/iommu/visconti-atu.c:320:25: warning: excess elements in struct initializer 320 | .probe_device = visconti_atu_probe_device, | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:320:25: note: (near initialization for 'visconti_atu_ops') >> drivers/iommu/visconti-atu.c:321:10: error: 'const struct iommu_ops' has no member named 'release_device' 321 | .release_device = visconti_atu_release_device, | ^~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:321:27: warning: excess elements in struct initializer 321 | .release_device = visconti_atu_release_device, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:321:27: note: (near initialization for 'visconti_atu_ops') >> drivers/iommu/visconti-atu.c:322:10: error: 'const struct iommu_ops' has no member named 'device_group' 322 | .device_group = generic_device_group, | ^~~~~~~~~~~~ >> drivers/iommu/visconti-atu.c:322:25: error: 'generic_device_group' undeclared here (not in a function) 322 | .device_group = generic_device_group, | ^~~~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:322:25: warning: excess elements in struct initializer drivers/iommu/visconti-atu.c:322:25: note: (near initialization for 'visconti_atu_ops') >> drivers/iommu/visconti-atu.c:323:10: error: 'const struct iommu_ops' has no member named 'of_xlate' 323 | .of_xlate = visconti_atu_of_xlate, | ^~~~~~~~ drivers/iommu/visconti-atu.c:323:21: warning: excess elements in struct initializer 323 | .of_xlate = visconti_atu_of_xlate, | ^~~~~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:323:21: note: (near initialization for 'visconti_atu_ops') >> drivers/iommu/visconti-atu.c:324:10: error: 'const struct iommu_ops' has no member named 'pgsize_bitmap' 324 | .pgsize_bitmap = ATU_IOMMU_PGSIZE_BITMAP, | ^~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:41:33: warning: excess elements in struct initializer 41 | #define ATU_IOMMU_PGSIZE_BITMAP 0x7ffff000 /* SZ_1G - SZ_4K */ | ^~~~~~~~~~ drivers/iommu/visconti-atu.c:324:26: note: in expansion of macro 'ATU_IOMMU_PGSIZE_BITMAP' 324 | .pgsize_bitmap = ATU_IOMMU_PGSIZE_BITMAP, | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:41:33: note: (near initialization for 'visconti_atu_ops') 41 | #define ATU_IOMMU_PGSIZE_BITMAP 0x7ffff000 /* SZ_1G - SZ_4K */ | ^~~~~~~~~~ drivers/iommu/visconti-atu.c:324:26: note: in expansion of macro 'ATU_IOMMU_PGSIZE_BITMAP' 324 | .pgsize_bitmap = ATU_IOMMU_PGSIZE_BITMAP, | ^~~~~~~~~~~~~~~~~~~~~~~ >> drivers/iommu/visconti-atu.c:325:10: error: 'const struct iommu_ops' has no member named 'default_domain_ops' 325 | .default_domain_ops = &(const struct iommu_domain_ops) { | ^~~~~~~~~~~~~~~~~~ >> drivers/iommu/visconti-atu.c:326:18: error: 'const struct iommu_domain_ops' has no member named 'attach_dev' 326 | .attach_dev = visconti_atu_attach_device, | ^~~~~~~~~~ drivers/iommu/visconti-atu.c:326:31: warning: excess elements in struct initializer 326 | .attach_dev = visconti_atu_attach_device, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:326:31: note: (near initialization for '(anonymous)') >> drivers/iommu/visconti-atu.c:327:18: error: 'const struct iommu_domain_ops' has no member named 'detach_dev' 327 | .detach_dev = visconti_atu_detach_device, | ^~~~~~~~~~ drivers/iommu/visconti-atu.c:327:31: warning: excess elements in struct initializer 327 | .detach_dev = visconti_atu_detach_device, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:327:31: note: (near initialization for '(anonymous)') drivers/iommu/visconti-atu.c:328:18: error: 'const struct iommu_domain_ops' has no member named 'map' 328 | .map = visconti_atu_map, | ^~~ drivers/iommu/visconti-atu.c:328:24: warning: excess elements in struct initializer 328 | .map = visconti_atu_map, | ^~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:328:24: note: (near initialization for '(anonymous)') drivers/iommu/visconti-atu.c:329:18: error: 'const struct iommu_domain_ops' has no member named 'unmap' 329 | .unmap = visconti_atu_unmap, | ^~~~~ drivers/iommu/visconti-atu.c:329:26: warning: excess elements in struct initializer 329 | .unmap = visconti_atu_unmap, | ^~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:329:26: note: (near initialization for '(anonymous)') drivers/iommu/visconti-atu.c:330:18: error: 'const struct iommu_domain_ops' has no member named 'iova_to_phys' 330 | .iova_to_phys = visconti_atu_iova_to_phys, | ^~~~~~~~~~~~ drivers/iommu/visconti-atu.c:330:33: warning: excess elements in struct initializer 330 | .iova_to_phys = visconti_atu_iova_to_phys, | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:330:33: note: (near initialization for '(anonymous)') drivers/iommu/visconti-atu.c:331:18: error: 'const struct iommu_domain_ops' has no member named 'free' 331 | .free = visconti_atu_domain_free, | ^~~~ drivers/iommu/visconti-atu.c:331:25: warning: excess elements in struct initializer 331 | .free = visconti_atu_domain_free, | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:331:25: note: (near initialization for '(anonymous)') drivers/iommu/visconti-atu.c:325:64: error: invalid use of undefined type 'const struct iommu_domain_ops' 325 | .default_domain_ops = &(const struct iommu_domain_ops) { | ^ drivers/iommu/visconti-atu.c:325:31: warning: excess elements in struct initializer 325 | .default_domain_ops = &(const struct iommu_domain_ops) { | ^ drivers/iommu/visconti-atu.c:325:31: note: (near initialization for 'visconti_atu_ops') drivers/iommu/visconti-atu.c: In function 'visconti_atu_probe': drivers/iommu/visconti-atu.c:366:22: error: implicit declaration of function 'iommu_group_alloc' [-Werror=implicit-function-declaration] 366 | atu->group = iommu_group_alloc(); | ^~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:366:20: warning: assignment to 'struct iommu_group *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 366 | atu->group = iommu_group_alloc(); | ^ drivers/iommu/visconti-atu.c:380:15: error: implicit declaration of function 'iommu_device_sysfs_add' [-Werror=implicit-function-declaration] 380 | ret = iommu_device_sysfs_add(&atu->iommu, dev, NULL, dev_name(dev)); | ^~~~~~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:384:15: error: implicit declaration of function 'iommu_device_register'; did you mean 'of_device_register'? [-Werror=implicit-function-declaration] 384 | ret = iommu_device_register(&atu->iommu, &visconti_atu_ops, dev); | ^~~~~~~~~~~~~~~~~~~~~ | of_device_register drivers/iommu/visconti-atu.c:388:14: error: implicit declaration of function 'iommu_present'; did you mean 'pmd_present'? [-Werror=implicit-function-declaration] 388 | if (!iommu_present(&platform_bus_type)) | ^~~~~~~~~~~~~ | pmd_present drivers/iommu/visconti-atu.c:389:17: error: implicit declaration of function 'bus_set_iommu' [-Werror=implicit-function-declaration] 389 | bus_set_iommu(&platform_bus_type, &visconti_atu_ops); | ^~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:395:9: error: implicit declaration of function 'iommu_device_sysfs_remove' [-Werror=implicit-function-declaration] 395 | iommu_device_sysfs_remove(&atu->iommu); | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c: In function 'visconti_atu_remove': drivers/iommu/visconti-atu.c:405:9: error: implicit declaration of function 'iommu_device_unregister'; did you mean 'of_device_unregister'? [-Werror=implicit-function-declaration] 405 | iommu_device_unregister(&atu->iommu); | ^~~~~~~~~~~~~~~~~~~~~~~ | of_device_unregister drivers/iommu/visconti-atu.c: At top level: drivers/iommu/visconti-atu.c:318:31: error: storage size of 'visconti_atu_ops' isn't known 318 | static const struct iommu_ops visconti_atu_ops = { | ^~~~~~~~~~~~~~~~ drivers/iommu/visconti-atu.c:318:31: error: storage size of 'visconti_atu_ops' isn't known cc1: some warnings being treated as errors vim +/iommu +47 drivers/iommu/visconti-atu.c 43 44 struct visconti_atu_device { 45 struct device *dev; 46 void __iomem *base; > 47 struct iommu_device iommu; 48 struct iommu_group *group; 49 50 unsigned int num_entry; 51 unsigned int num_map_entry; 52 unsigned int enable_entry; 53 unsigned long iova[ATU_MAX_IOMMU_ENTRY]; 54 phys_addr_t paddr[ATU_MAX_IOMMU_ENTRY]; 55 size_t size[ATU_MAX_IOMMU_ENTRY]; 56 57 spinlock_t lock; 58 }; 59 60 struct visconti_atu_domain { 61 struct visconti_atu_device *atu; > 62 struct iommu_domain io_domain; 63 struct mutex mutex; 64 }; 65 66 static const struct iommu_ops visconti_atu_ops; 67 68 static struct visconti_atu_domain *to_atu_domain(struct iommu_domain *domain) 69 { 70 return container_of(domain, struct visconti_atu_domain, io_domain); 71 } 72 73 static inline void visconti_atu_write(struct visconti_atu_device *atu, u32 reg, 74 u32 val) 75 { 76 writel_relaxed(val, atu->base + reg); 77 } 78 79 static inline u32 visconti_atu_read(struct visconti_atu_device *atu, u32 reg) 80 { 81 return readl_relaxed(atu->base + reg); 82 } 83 84 static void visconti_atu_enable_entry(struct visconti_atu_device *atu, 85 int num) 86 { 87 dev_dbg(atu->dev, "enable ATU: %d\n", atu->enable_entry); 88 89 visconti_atu_write(atu, ATU_AT_EN, 0); 90 if (atu->enable_entry & BIT(num)) { 91 visconti_atu_write(atu, 92 ATU_AT_REG(num, ATU_AT_BLADDR), 93 atu->iova[num]); 94 visconti_atu_write(atu, 95 ATU_AT_REG(num, ATU_AT_ELADDR), 96 atu->iova[num] + atu->size[num] - 1); 97 visconti_atu_write(atu, 98 ATU_AT_REG(num, ATU_AT_BGADDR0), 99 atu->iova[num] & ATU_BGADDR_MASK); 100 visconti_atu_write(atu, 101 ATU_AT_REG(num, ATU_AT_BGADDR1), 102 (atu->iova[num] >> 32) & ATU_BGADDR_MASK); 103 } 104 visconti_atu_write(atu, ATU_AT_ENTRY_EN, atu->enable_entry); 105 visconti_atu_write(atu, ATU_AT_EN, 1); 106 } 107 108 static void visconti_atu_disable_entry(struct visconti_atu_device *atu) 109 { 110 dev_dbg(atu->dev, "disable ATU: %d\n", atu->enable_entry); 111 112 visconti_atu_write(atu, ATU_AT_EN, 0); 113 visconti_atu_write(atu, ATU_AT_ENTRY_EN, atu->enable_entry); 114 visconti_atu_write(atu, ATU_AT_EN, 1); 115 } 116 117 static int visconti_atu_attach_device(struct iommu_domain *io_domain, 118 struct device *dev) 119 { 120 struct visconti_atu_domain *domain = to_atu_domain(io_domain); > 121 struct visconti_atu_device *atu = dev_iommu_priv_get(dev); 122 int ret = 0; 123 124 if (!atu) { 125 dev_err(dev, "Cannot attach to ATU\n"); 126 return -ENXIO; 127 } 128 129 mutex_lock(&domain->mutex); 130 131 if (!domain->atu) { 132 domain->atu = atu; 133 } else if (domain->atu != atu) { 134 dev_err(dev, "Can't attach ATU %s to domain on ATU %s\n", 135 dev_name(atu->dev), dev_name(domain->atu->dev)); 136 ret = -EINVAL; 137 } else { 138 dev_warn(dev, "Reusing ATU context\n"); 139 } 140 141 mutex_unlock(&domain->mutex); 142 143 return ret; 144 } 145 -- 0-DAY CI Kernel Test Service https://01.org/lkp
