Hi Nobuhiro, I love your patch! Perhaps something to improve: [auto build test WARNING on joro-iommu/next] [also build test WARNING 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: nios2-allyesconfig (https://download.01.org/0day-ci/archive/20220525/202205251205.PHq3cWj3-lkp@xxxxxxxxx/config) compiler: nios2-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=nios2 SHELL=/bin/bash drivers/iommu/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (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_enable_entry': >> drivers/iommu/visconti-atu.c:102:52: warning: right shift count >= width of type [-Wshift-count-overflow] 102 | (atu->iova[num] >> 32) & ATU_BGADDR_MASK); | ^~ 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) | ^~~~~~~~~~~~~~~~~~ In file included from include/linux/printk.h:555, from include/asm-generic/bug.h:22, from ./arch/nios2/include/generated/asm/bug.h:1, from include/linux/bug.h:5, from include/linux/thread_info.h:13, from include/asm-generic/current.h:5, from ./arch/nios2/include/generated/asm/current.h:1, from include/linux/sched.h:12, from include/linux/ratelimit.h:6, 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 'visconti_atu_iova_to_phys': >> drivers/iommu/visconti-atu.c:251:27: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'dma_addr_t' {aka 'unsigned int'} [-Wformat=] 251 | dev_dbg(atu->dev, "iova_to_phys: %llx -> %llx\n", iova, paddr); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dynamic_debug.h:134:29: note: in definition of macro '__dynamic_func_call' 134 | func(&id, ##__VA_ARGS__); \ | ^~~~~~~~~~~ include/linux/dynamic_debug.h:166:9: note: in expansion of macro '_dynamic_func_call' 166 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \ | ^~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:155:9: note: in expansion of macro 'dynamic_dev_dbg' 155 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~~~~~ include/linux/dev_printk.h:155:30: note: in expansion of macro 'dev_fmt' 155 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~ drivers/iommu/visconti-atu.c:251:9: note: in expansion of macro 'dev_dbg' 251 | dev_dbg(atu->dev, "iova_to_phys: %llx -> %llx\n", iova, paddr); | ^~~~~~~ drivers/iommu/visconti-atu.c:251:45: note: format string is defined here 251 | dev_dbg(atu->dev, "iova_to_phys: %llx -> %llx\n", iova, paddr); | ~~~^ | | | long long unsigned int | %x In file included from include/linux/printk.h:555, from include/asm-generic/bug.h:22, from ./arch/nios2/include/generated/asm/bug.h:1, from include/linux/bug.h:5, from include/linux/thread_info.h:13, from include/asm-generic/current.h:5, from ./arch/nios2/include/generated/asm/current.h:1, from include/linux/sched.h:12, from include/linux/ratelimit.h:6, 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:251:27: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 5 has type 'phys_addr_t' {aka 'unsigned int'} [-Wformat=] 251 | dev_dbg(atu->dev, "iova_to_phys: %llx -> %llx\n", iova, paddr); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dynamic_debug.h:134:29: note: in definition of macro '__dynamic_func_call' 134 | func(&id, ##__VA_ARGS__); \ | ^~~~~~~~~~~ include/linux/dynamic_debug.h:166:9: note: in expansion of macro '_dynamic_func_call' 166 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \ | ^~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:155:9: note: in expansion of macro 'dynamic_dev_dbg' 155 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~~~~~ include/linux/dev_printk.h:155:30: note: in expansion of macro 'dev_fmt' 155 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~ drivers/iommu/visconti-atu.c:251:9: note: in expansion of macro 'dev_dbg' 251 | dev_dbg(atu->dev, "iova_to_phys: %llx -> %llx\n", iova, paddr); | ^~~~~~~ drivers/iommu/visconti-atu.c:251:53: note: format string is defined here 251 | dev_dbg(atu->dev, "iova_to_phys: %llx -> %llx\n", iova, paddr); | ~~~^ | | | long long unsigned int | %x 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' vim +102 drivers/iommu/visconti-atu.c 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 } 145 146 static void visconti_atu_detach_device(struct iommu_domain *io_domain, 147 struct device *dev) 148 { 149 struct visconti_atu_domain *domain = to_atu_domain(io_domain); 150 struct visconti_atu_device *atu = dev_iommu_priv_get(dev); 151 152 if (domain->atu != atu) 153 return; 154 155 domain->atu = NULL; 156 } 157 158 static int visconti_atu_map(struct iommu_domain *io_domain, 159 unsigned long iova, 160 phys_addr_t paddr, 161 size_t size, int prot, gfp_t gfp) 162 { 163 struct visconti_atu_domain *domain = to_atu_domain(io_domain); 164 struct visconti_atu_device *atu = domain->atu; 165 unsigned long flags; 166 unsigned int i; 167 168 if (!domain) 169 return -ENODEV; 170 171 spin_lock_irqsave(&atu->lock, flags); 172 for (i = 0; i < atu->num_map_entry; i++) { 173 if (!(atu->enable_entry & BIT(i))) { 174 atu->enable_entry |= BIT(i); 175 atu->iova[i] = iova; 176 atu->paddr[i] = paddr; 177 atu->size[i] = size; 178 179 visconti_atu_enable_entry(atu, i); 180 break; 181 } 182 } 183 spin_unlock_irqrestore(&atu->lock, flags); 184 185 if (i == atu->num_map_entry) { 186 dev_err(atu->dev, "map: not enough entry.\n"); 187 return -ENOMEM; 188 } 189 190 return 0; 191 } 192 193 static size_t visconti_atu_unmap(struct iommu_domain *io_domain, 194 unsigned long iova, 195 size_t size, 196 struct iommu_iotlb_gather *iotlb_gather) 197 { 198 struct visconti_atu_domain *domain = to_atu_domain(io_domain); 199 struct visconti_atu_device *atu = domain->atu; 200 size_t tmp_size = size; 201 unsigned long flags; 202 unsigned int i; 203 204 spin_lock_irqsave(&atu->lock, flags); 205 206 while (tmp_size != 0) { 207 for (i = 0; i < atu->num_map_entry; i++) { 208 if (atu->iova[i] != iova) 209 continue; 210 211 atu->enable_entry &= ~BIT(i); 212 iova += atu->size[i]; 213 tmp_size -= atu->size[i]; 214 215 visconti_atu_disable_entry(atu); 216 217 break; 218 } 219 if (i == atu->num_map_entry) { 220 dev_err(atu->dev, "unmap: not found entry.\n"); 221 size = 0; 222 goto out; 223 } 224 } 225 226 if (!atu->num_map_entry) 227 visconti_atu_write(atu, ATU_AT_EN, 0); 228 out: 229 spin_unlock_irqrestore(&atu->lock, flags); 230 return size; 231 } 232 233 static phys_addr_t visconti_atu_iova_to_phys(struct iommu_domain *io_domain, 234 dma_addr_t iova) 235 { 236 struct visconti_atu_domain *domain = to_atu_domain(io_domain); 237 struct visconti_atu_device *atu = domain->atu; 238 phys_addr_t paddr = 0; 239 unsigned int i; 240 241 for (i = 0; i < atu->num_map_entry; i++) { 242 if (!(atu->enable_entry & BIT(i))) 243 continue; 244 if (atu->iova[i] <= iova && iova < (atu->iova[i] + atu->size[i])) { 245 paddr = atu->paddr[i]; 246 paddr += iova & (atu->size[i] - 1); 247 break; 248 } 249 } 250 > 251 dev_dbg(atu->dev, "iova_to_phys: %llx -> %llx\n", iova, paddr); 252 253 return paddr; 254 } 255 -- 0-DAY CI Kernel Test Service https://01.org/lkp
