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Message-ID: <202512162315.lcRwm6Mr-lkp@intel.com>
Date: Tue, 16 Dec 2025 23:27:24 +0800
From: kernel test robot <lkp@...el.com>
To: Benjamin Gaignard <benjamin.gaignard@...labora.com>, joro@...tes.org,
will@...nel.org, robin.murphy@....com, robh@...nel.org,
krzk+dt@...nel.org, conor+dt@...nel.org, heiko@...ech.de,
nicolas.dufresne@...labora.com, p.zabel@...gutronix.de,
mchehab@...nel.org
Cc: oe-kbuild-all@...ts.linux.dev, iommu@...ts.linux.dev,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-rockchip@...ts.infradead.org, linux-media@...r.kernel.org,
kernel@...labora.com,
Benjamin Gaignard <benjamin.gaignard@...labora.com>
Subject: Re: [PATCH v10 5/7] media: verisilicon: AV1: Restore IOMMU context
before decoding a frame
Hi Benjamin,
kernel test robot noticed the following build errors:
[auto build test ERROR on linus/master]
[also build test ERROR on v6.19-rc1 next-20251216]
[cannot apply to robh/for-next rockchip/for-next arm64/for-next/core]
[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#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Benjamin-Gaignard/dt-bindings-vendor-prefixes-Add-Verisilicon/20251215-165740
base: linus/master
patch link: https://lore.kernel.org/r/20251215085349.10155-6-benjamin.gaignard%40collabora.com
patch subject: [PATCH v10 5/7] media: verisilicon: AV1: Restore IOMMU context before decoding a frame
config: arm-randconfig-r063-20251216 (https://download.01.org/0day-ci/archive/20251216/202512162315.lcRwm6Mr-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 1335a05ab8bc8339ce24be3a9da89d8c3f4e0571)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251216/202512162315.lcRwm6Mr-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202512162315.lcRwm6Mr-lkp@intel.com/
All errors (new ones prefixed by >>):
>> drivers/iommu/vsi-iommu.c:231:3: error: call to undeclared function 'report_iommu_fault'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
231 | report_iommu_fault(iommu->domain, iommu->dev, iova, status);
| ^
>> drivers/iommu/vsi-iommu.c:245:21: error: no member named 'iommu_fwnode' in 'struct iommu_fwspec'
245 | fwspec->iommu_fwnode);
| ~~~~~~ ^
>> drivers/iommu/vsi-iommu.c:254:28: error: call to undeclared function 'dev_iommu_priv_get'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
254 | struct vsi_iommu *iommu = dev_iommu_priv_get(dev);
| ^
drivers/iommu/vsi-iommu.c:254:28: note: did you mean 'dev_iommu_fwspec_get'?
include/linux/iommu.h:1457:36: note: 'dev_iommu_fwspec_get' declared here
1457 | static inline struct iommu_fwspec *dev_iommu_fwspec_get(struct device *dev)
| ^
>> drivers/iommu/vsi-iommu.c:254:20: error: incompatible integer to pointer conversion initializing 'struct vsi_iommu *' with an expression of type 'int' [-Wint-conversion]
254 | struct vsi_iommu *iommu = dev_iommu_priv_get(dev);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~
drivers/iommu/vsi-iommu.c:496:28: error: call to undeclared function 'dev_iommu_priv_get'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
496 | struct vsi_iommu *iommu = dev_iommu_priv_get(dev);
| ^
drivers/iommu/vsi-iommu.c:496:20: error: incompatible integer to pointer conversion initializing 'struct vsi_iommu *' with an expression of type 'int' [-Wint-conversion]
496 | struct vsi_iommu *iommu = dev_iommu_priv_get(dev);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/iommu/vsi-iommu.c:519:38: error: variable has incomplete type 'const struct iommu_domain_ops'
519 | static const struct iommu_domain_ops vsi_identity_ops = {
| ^
include/linux/iommu.h:40:8: note: forward declaration of 'struct iommu_domain_ops'
40 | struct iommu_domain_ops;
| ^
drivers/iommu/vsi-iommu.c:571:28: error: call to undeclared function 'dev_iommu_priv_get'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
571 | struct vsi_iommu *iommu = dev_iommu_priv_get(dev);
| ^
drivers/iommu/vsi-iommu.c:571:20: error: incompatible integer to pointer conversion initializing 'struct vsi_iommu *' with an expression of type 'int' [-Wint-conversion]
571 | struct vsi_iommu *iommu = dev_iommu_priv_get(dev);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/iommu/vsi-iommu.c:644:2: error: call to undeclared function 'dev_iommu_priv_set'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
644 | dev_iommu_priv_set(dev, iommu);
| ^
drivers/iommu/vsi-iommu.c:650:28: error: call to undeclared function 'dev_iommu_priv_get'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
650 | struct vsi_iommu *iommu = dev_iommu_priv_get(dev);
| ^
drivers/iommu/vsi-iommu.c:650:20: error: incompatible integer to pointer conversion initializing 'struct vsi_iommu *' with an expression of type 'int' [-Wint-conversion]
650 | struct vsi_iommu *iommu = dev_iommu_priv_get(dev);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/iommu/vsi-iommu.c:657:35: error: passing 'const uint32_t[16]' (aka 'const unsigned int[16]') to parameter of type 'u32 *' (aka 'unsigned int *') discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
657 | return iommu_fwspec_add_ids(dev, args->args, 1);
| ^~~~~~~~~~
include/linux/iommu.h:1451:65: note: passing argument to parameter 'ids' here
1451 | static inline int iommu_fwspec_add_ids(struct device *dev, u32 *ids,
| ^
>> drivers/iommu/vsi-iommu.c:667:18: error: use of undeclared identifier 'generic_single_device_group'
667 | .device_group = generic_single_device_group,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/iommu/vsi-iommu.c:669:25: error: variable has incomplete type 'const struct iommu_domain_ops'
669 | .default_domain_ops = &(const struct iommu_domain_ops) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
670 | .attach_dev = vsi_iommu_attach_device,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
671 | .map_pages = vsi_iommu_map,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
672 | .unmap_pages = vsi_iommu_unmap,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
673 | .flush_iotlb_all = vsi_iommu_flush_tlb_all,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
674 | .iova_to_phys = vsi_iommu_iova_to_phys,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
675 | .free = vsi_iommu_domain_free,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
676 | }
| ~
include/linux/iommu.h:40:8: note: forward declaration of 'struct iommu_domain_ops'
40 | struct iommu_domain_ops;
| ^
15 errors generated.
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for VSI_IOMMU
Depends on [n]: IOMMU_SUPPORT [=n] && (ARCH_ROCKCHIP [=n] && ARM64 || COMPILE_TEST [=y])
Selected by [m]:
- VIDEO_HANTRO_ROCKCHIP [=y] && MEDIA_SUPPORT [=y] && MEDIA_PLATFORM_SUPPORT [=y] && MEDIA_PLATFORM_DRIVERS [=y] && VIDEO_HANTRO [=m] && (ARCH_ROCKCHIP [=n] || COMPILE_TEST [=y])
vim +/report_iommu_fault +231 drivers/iommu/vsi-iommu.c
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 214
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 215 static irqreturn_t vsi_iommu_irq(int irq, void *dev_id)
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 216 {
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 217 struct vsi_iommu *iommu = dev_id;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 218 unsigned long flags;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 219 dma_addr_t iova;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 220 u32 status;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 221
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 222 if (pm_runtime_resume_and_get(iommu->dev) < 0)
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 223 return IRQ_NONE;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 224
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 225 spin_lock_irqsave(&iommu->lock, flags);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 226
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 227 status = readl(iommu->regs + VSI_MMU_STATUS_BASE);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 228 if (status & VSI_MMU_IRQ_MASK) {
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 229 dev_err(iommu->dev, "unexpected int_status=%08x\n", status);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 230 iova = readl(iommu->regs + VSI_MMU_PAGE_FAULT_ADDR);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 @231 report_iommu_fault(iommu->domain, iommu->dev, iova, status);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 232 }
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 233 writel(0, iommu->regs + VSI_MMU_STATUS_BASE);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 234
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 235 spin_unlock_irqrestore(&iommu->lock, flags);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 236 pm_runtime_put_autosuspend(iommu->dev);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 237
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 238 return IRQ_HANDLED;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 239 }
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 240
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 241 static struct vsi_iommu *vsi_iommu_get_from_dev(struct device *dev)
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 242 {
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 243 struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 244 struct device *iommu_dev = bus_find_device_by_fwnode(&platform_bus_type,
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 @245 fwspec->iommu_fwnode);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 246
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 247 put_device(iommu_dev);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 248
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 249 return iommu_dev ? dev_get_drvdata(iommu_dev) : NULL;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 250 }
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 251
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 252 static struct iommu_domain *vsi_iommu_domain_alloc_paging(struct device *dev)
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 253 {
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 @254 struct vsi_iommu *iommu = dev_iommu_priv_get(dev);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 255 struct vsi_iommu_domain *vsi_domain;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 256
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 257 vsi_domain = kzalloc(sizeof(*vsi_domain), GFP_KERNEL);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 258 if (!vsi_domain)
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 259 return NULL;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 260
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 261 vsi_domain->dev = iommu->dev;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 262 spin_lock_init(&vsi_domain->lock);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 263
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 264 /*
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 265 * iommu use a 2 level pagetable.
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 266 * Each level1 (dt) and level2 (pt) table has 1024 4-byte entries.
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 267 * Allocate one 4 KiB page for each table.
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 268 */
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 269 vsi_domain->dt = iommu_alloc_pages_sz(GFP_KERNEL | GFP_DMA32,
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 270 SPAGE_SIZE);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 271 if (!vsi_domain->dt)
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 272 goto err_free_domain;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 273
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 274 vsi_domain->dt_dma = dma_map_single(vsi_domain->dev, vsi_domain->dt,
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 275 SPAGE_SIZE, DMA_TO_DEVICE);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 276 if (dma_mapping_error(vsi_domain->dev, vsi_domain->dt_dma)) {
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 277 dev_err(dev, "DMA map error for DT\n");
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 278 goto err_free_dt;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 279 }
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 280
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 281 vsi_domain->pta = iommu_alloc_pages_sz(GFP_KERNEL | GFP_DMA32,
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 282 SPAGE_SIZE);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 283 if (!vsi_domain->pta)
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 284 goto err_unmap_dt;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 285
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 286 vsi_domain->pta[0] = vsi_mk_pta(vsi_domain->dt_dma);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 287 vsi_domain->pta_dma = dma_map_single(vsi_domain->dev, vsi_domain->pta,
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 288 SPAGE_SIZE, DMA_TO_DEVICE);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 289 if (dma_mapping_error(vsi_domain->dev, vsi_domain->pta_dma)) {
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 290 dev_err(dev, "DMA map error for PTA\n");
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 291 goto err_free_pta;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 292 }
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 293
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 294 INIT_LIST_HEAD(&vsi_domain->iommus);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 295
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 296 vsi_domain->domain.geometry.aperture_start = 0;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 297 vsi_domain->domain.geometry.aperture_end = DMA_BIT_MASK(32);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 298 vsi_domain->domain.geometry.force_aperture = true;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 299 vsi_domain->domain.pgsize_bitmap = SZ_4K;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 300
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 301 return &vsi_domain->domain;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 302
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 303 err_free_pta:
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 304 iommu_free_pages(vsi_domain->pta);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 305 err_unmap_dt:
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 306 dma_unmap_single(vsi_domain->dev, vsi_domain->dt_dma,
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 307 SPAGE_SIZE, DMA_TO_DEVICE);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 308 err_free_dt:
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 309 iommu_free_pages(vsi_domain->dt);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 310 err_free_domain:
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 311 kfree(vsi_domain);
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 312
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 313 return NULL;
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 314 }
b9e3cd4bea55cd Benjamin Gaignard 2025-12-15 315
--
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