Hi Dmitry, I love your patch! Yet something to improve: [auto build test ERROR on tegra-drm/drm/tegra/for-next] [also build test ERROR on v4.18 next-20180820] [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/Dmitry-Osipenko/gpu-host1x-Detach-Host1x-from-IOMMU-DMA-domain-on-arm32/20180820-225630 base: git://anongit.freedesktop.org/tegra/linux.git drm/tegra/for-next config: arm-allmodconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0 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=7.2.0 make.cross ARCH=arm All error/warnings (new ones prefixed by >>): drivers/gpu/host1x/dev.c: In function 'host1x_probe': >> drivers/gpu/host1x/dev.c:241:16: error: invalid type argument of '->' (have 'struct device') if (pdev->dev->archdata.mapping) { ^~ In file included from include/linux/device.h:28:0, from include/linux/dma-mapping.h:7, from drivers/gpu/host1x/dev.c:20: >> arch/arm/include/asm/device.h:35:41: error: invalid type argument of '->' (have 'struct device') #define to_dma_iommu_mapping(dev) ((dev)->archdata.mapping) ^ >> drivers/gpu/host1x/dev.c:243:6: note: in expansion of macro 'to_dma_iommu_mapping' to_dma_iommu_mapping(pdev->dev); ^~~~~~~~~~~~~~~~~~~~ >> drivers/gpu/host1x/dev.c:244:28: error: incompatible type for argument 1 of 'arm_iommu_detach_device' arm_iommu_detach_device(pdev->dev); ^~~~ In file included from drivers/gpu/host1x/dev.c:33:0: arch/arm/include/asm/dma-iommu.h:36:6: note: expected 'struct device *' but argument is of type 'struct device' void arm_iommu_detach_device(struct device *dev); ^~~~~~~~~~~~~~~~~~~~~~~ -- drivers/gpu//host1x/dev.c: In function 'host1x_probe': drivers/gpu//host1x/dev.c:241:16: error: invalid type argument of '->' (have 'struct device') if (pdev->dev->archdata.mapping) { ^~ In file included from include/linux/device.h:28:0, from include/linux/dma-mapping.h:7, from drivers/gpu//host1x/dev.c:20: >> arch/arm/include/asm/device.h:35:41: error: invalid type argument of '->' (have 'struct device') #define to_dma_iommu_mapping(dev) ((dev)->archdata.mapping) ^ drivers/gpu//host1x/dev.c:243:6: note: in expansion of macro 'to_dma_iommu_mapping' to_dma_iommu_mapping(pdev->dev); ^~~~~~~~~~~~~~~~~~~~ drivers/gpu//host1x/dev.c:244:28: error: incompatible type for argument 1 of 'arm_iommu_detach_device' arm_iommu_detach_device(pdev->dev); ^~~~ In file included from drivers/gpu//host1x/dev.c:33:0: arch/arm/include/asm/dma-iommu.h:36:6: note: expected 'struct device *' but argument is of type 'struct device' void arm_iommu_detach_device(struct device *dev); ^~~~~~~~~~~~~~~~~~~~~~~ vim +241 drivers/gpu/host1x/dev.c 143 144 static int host1x_probe(struct platform_device *pdev) 145 { 146 struct host1x *host; 147 struct resource *regs, *hv_regs = NULL; 148 int syncpt_irq; 149 int err; 150 151 host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL); 152 if (!host) 153 return -ENOMEM; 154 155 host->info = of_device_get_match_data(&pdev->dev); 156 157 if (host->info->has_hypervisor) { 158 regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vm"); 159 if (!regs) { 160 dev_err(&pdev->dev, "failed to get vm registers\n"); 161 return -ENXIO; 162 } 163 164 hv_regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, 165 "hypervisor"); 166 if (!hv_regs) { 167 dev_err(&pdev->dev, 168 "failed to get hypervisor registers\n"); 169 return -ENXIO; 170 } 171 } else { 172 regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); 173 if (!regs) { 174 dev_err(&pdev->dev, "failed to get registers\n"); 175 return -ENXIO; 176 } 177 } 178 179 syncpt_irq = platform_get_irq(pdev, 0); 180 if (syncpt_irq < 0) { 181 dev_err(&pdev->dev, "failed to get IRQ: %d\n", syncpt_irq); 182 return syncpt_irq; 183 } 184 185 mutex_init(&host->devices_lock); 186 INIT_LIST_HEAD(&host->devices); 187 INIT_LIST_HEAD(&host->list); 188 host->dev = &pdev->dev; 189 190 /* set common host1x device data */ 191 platform_set_drvdata(pdev, host); 192 193 host->regs = devm_ioremap_resource(&pdev->dev, regs); 194 if (IS_ERR(host->regs)) 195 return PTR_ERR(host->regs); 196 197 if (host->info->has_hypervisor) { 198 host->hv_regs = devm_ioremap_resource(&pdev->dev, hv_regs); 199 if (IS_ERR(host->hv_regs)) 200 return PTR_ERR(host->hv_regs); 201 } 202 203 dma_set_mask_and_coherent(host->dev, host->info->dma_mask); 204 205 if (host->info->init) { 206 err = host->info->init(host); 207 if (err) 208 return err; 209 } 210 211 host->clk = devm_clk_get(&pdev->dev, NULL); 212 if (IS_ERR(host->clk)) { 213 dev_err(&pdev->dev, "failed to get clock\n"); 214 err = PTR_ERR(host->clk); 215 return err; 216 } 217 218 host->rst = devm_reset_control_get(&pdev->dev, "host1x"); 219 if (IS_ERR(host->rst)) { 220 err = PTR_ERR(host->rst); 221 dev_err(&pdev->dev, "failed to get reset: %d\n", err); 222 return err; 223 } 224 225 host->group = iommu_group_get(&pdev->dev); 226 if (host->group) { 227 struct iommu_domain_geometry *geometry; 228 unsigned long order; 229 230 err = iova_cache_get(); 231 if (err < 0) 232 goto put_group; 233 234 host->domain = iommu_domain_alloc(&platform_bus_type); 235 if (!host->domain) { 236 err = -ENOMEM; 237 goto put_cache; 238 } 239 240 #if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU) > 241 if (pdev->dev->archdata.mapping) { 242 struct dma_iommu_mapping *mapping = > 243 to_dma_iommu_mapping(pdev->dev); > 244 arm_iommu_detach_device(pdev->dev); 245 arm_iommu_release_mapping(mapping); 246 } 247 #endif 248 err = iommu_attach_group(host->domain, host->group); 249 if (err) { 250 if (err == -ENODEV) { 251 iommu_domain_free(host->domain); 252 host->domain = NULL; 253 iova_cache_put(); 254 iommu_group_put(host->group); 255 host->group = NULL; 256 goto skip_iommu; 257 } 258 259 goto fail_free_domain; 260 } 261 262 geometry = &host->domain->geometry; 263 264 order = __ffs(host->domain->pgsize_bitmap); 265 init_iova_domain(&host->iova, 1UL << order, 266 geometry->aperture_start >> order); 267 host->iova_end = geometry->aperture_end; 268 } 269 270 skip_iommu: 271 err = host1x_channel_list_init(&host->channel_list, 272 host->info->nb_channels); 273 if (err) { 274 dev_err(&pdev->dev, "failed to initialize channel list\n"); 275 goto fail_detach_device; 276 } 277 278 err = clk_prepare_enable(host->clk); 279 if (err < 0) { 280 dev_err(&pdev->dev, "failed to enable clock\n"); 281 goto fail_free_channels; 282 } 283 284 err = reset_control_deassert(host->rst); 285 if (err < 0) { 286 dev_err(&pdev->dev, "failed to deassert reset: %d\n", err); 287 goto fail_unprepare_disable; 288 } 289 290 err = host1x_syncpt_init(host); 291 if (err) { 292 dev_err(&pdev->dev, "failed to initialize syncpts\n"); 293 goto fail_reset_assert; 294 } 295 296 err = host1x_intr_init(host, syncpt_irq); 297 if (err) { 298 dev_err(&pdev->dev, "failed to initialize interrupts\n"); 299 goto fail_deinit_syncpt; 300 } 301 302 host1x_debug_init(host); 303 304 err = host1x_register(host); 305 if (err < 0) 306 goto fail_deinit_intr; 307 308 return 0; 309 310 fail_deinit_intr: 311 host1x_intr_deinit(host); 312 fail_deinit_syncpt: 313 host1x_syncpt_deinit(host); 314 fail_reset_assert: 315 reset_control_assert(host->rst); 316 fail_unprepare_disable: 317 clk_disable_unprepare(host->clk); 318 fail_free_channels: 319 host1x_channel_list_free(&host->channel_list); 320 fail_detach_device: 321 if (host->group && host->domain) { 322 put_iova_domain(&host->iova); 323 iommu_detach_group(host->domain, host->group); 324 } 325 fail_free_domain: 326 if (host->domain) 327 iommu_domain_free(host->domain); 328 put_cache: 329 if (host->group) 330 iova_cache_put(); 331 put_group: 332 iommu_group_put(host->group); 333 334 return err; 335 } 336 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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