From: Benjamin Gaignard <benjamin.gaignard@collabora.com>
To: kernel test robot <lkp@intel.com>,
joro@8bytes.org, will@kernel.org, robin.murphy@arm.com,
robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
heiko@sntech.de, nicolas.dufresne@collabora.com,
p.zabel@pengutronix.de, mchehab@kernel.org
Cc: oe-kbuild-all@lists.linux.dev, iommu@lists.linux.dev,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org, linux-media@vger.kernel.org,
kernel@collabora.com
Subject: Re: [PATCH v10 5/7] media: verisilicon: AV1: Restore IOMMU context before decoding a frame
Date: Wed, 17 Dec 2025 10:01:48 +0100 [thread overview]
Message-ID: <913d3056-0619-4e05-ac5f-1a21cf0e47c9@collabora.com> (raw)
In-Reply-To: <202512162315.lcRwm6Mr-lkp@intel.com>
Le 16/12/2025 à 16:27, kernel test robot a écrit :
> 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@intel.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])VSI_IOMMU
I will make VIDEO_HANTRO_ROCKCHIP depends on VSI_IOMMU instead of select it on the next version.
Regards,
Benjamin
>
>
> 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
>
next prev parent reply other threads:[~2025-12-17 9:02 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-15 8:53 [PATCH v10 0/7] Add support for Verisilicon IOMMU used by media Benjamin Gaignard
2025-12-15 8:53 ` [PATCH v10 1/7] dt-bindings: vendor-prefixes: Add Verisilicon Benjamin Gaignard
2025-12-15 8:53 ` [PATCH v10 2/7] dt-bindings: iommu: verisilicon: Add binding for VSI IOMMU Benjamin Gaignard
2025-12-15 8:53 ` [PATCH v10 3/7] iommu: Add verisilicon IOMMU driver Benjamin Gaignard
2025-12-15 8:53 ` [PATCH v10 4/7] MAINTAINERS: Add entry for Verisilicon " Benjamin Gaignard
2025-12-15 8:53 ` [PATCH v10 5/7] media: verisilicon: AV1: Restore IOMMU context before decoding a frame Benjamin Gaignard
2025-12-16 15:27 ` kernel test robot
2025-12-17 9:01 ` Benjamin Gaignard [this message]
2025-12-22 15:32 ` kernel test robot
2026-01-06 20:07 ` Nicolas Dufresne
2025-12-15 8:53 ` [PATCH v10 6/7] arm64: dts: rockchip: Add verisilicon IOMMU node on RK3588 Benjamin Gaignard
2025-12-15 8:53 ` [PATCH v10 7/7] arm64: defconfig: enable Verisilicon IOMMU for Rockchip RK3588 Benjamin Gaignard
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