Hi Nirmoy, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm-tip/drm-tip] url: https://github.com/intel-lab-lkp/linux/commits/Nirmoy-Das/drm-i915-Improve-debug-print-in-vm_fault_ttm/20220922-201041 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip config: x86_64-randconfig-a011 (https://download.01.org/0day-ci/archive/20220922/202209222231.mIrsqiu7-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-5) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/e1a426a9e14837ada7e883d20af7c9abdf59823c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Nirmoy-Das/drm-i915-Improve-debug-print-in-vm_fault_ttm/20220922-201041 git checkout e1a426a9e14837ada7e883d20af7c9abdf59823c # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/drm/i915/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from include/drm/drm_mm.h:51, from include/drm/ttm/ttm_bo_driver.h:33, from drivers/gpu/drm/i915/gem/i915_gem_ttm.c:8: drivers/gpu/drm/i915/gem/i915_gem_ttm.c: In function 'vm_fault_ttm': >> drivers/gpu/drm/i915/gem/i915_gem_ttm.c:1037:38: warning: format '%p' expects argument of type 'void *', but argument 4 has type 'int' [-Wformat=] 1037 | drm_dbg(dev, "Unable to make resource CPU accessible(err = %pe)\n", err); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~ | | | int include/drm/drm_print.h:461:63: note: in definition of macro 'drm_dbg' 461 | drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DRIVER, fmt, ##__VA_ARGS__) | ^~~ drivers/gpu/drm/i915/gem/i915_gem_ttm.c:1037:85: note: format string is defined here 1037 | drm_dbg(dev, "Unable to make resource CPU accessible(err = %pe)\n", err); | ~^ | | | void * | %d vim +1037 drivers/gpu/drm/i915/gem/i915_gem_ttm.c 986 987 static vm_fault_t vm_fault_ttm(struct vm_fault *vmf) 988 { 989 struct vm_area_struct *area = vmf->vma; 990 struct ttm_buffer_object *bo = area->vm_private_data; 991 struct drm_device *dev = bo->base.dev; 992 struct drm_i915_gem_object *obj; 993 intel_wakeref_t wakeref = 0; 994 vm_fault_t ret; 995 int idx; 996 997 obj = i915_ttm_to_gem(bo); 998 if (!obj) 999 return VM_FAULT_SIGBUS; 1000 1001 /* Sanity check that we allow writing into this object */ 1002 if (unlikely(i915_gem_object_is_readonly(obj) && 1003 area->vm_flags & VM_WRITE)) 1004 return VM_FAULT_SIGBUS; 1005 1006 ret = ttm_bo_vm_reserve(bo, vmf); 1007 if (ret) 1008 return ret; 1009 1010 if (obj->mm.madv != I915_MADV_WILLNEED) { 1011 dma_resv_unlock(bo->base.resv); 1012 return VM_FAULT_SIGBUS; 1013 } 1014 1015 if (i915_ttm_cpu_maps_iomem(bo->resource)) 1016 wakeref = intel_runtime_pm_get(&to_i915(obj->base.dev)->runtime_pm); 1017 1018 if (!i915_ttm_resource_mappable(bo->resource)) { 1019 int err = -ENODEV; 1020 int i; 1021 1022 for (i = 0; i < obj->mm.n_placements; i++) { 1023 struct intel_memory_region *mr = obj->mm.placements[i]; 1024 unsigned int flags; 1025 1026 if (!mr->io_size && mr->type != INTEL_MEMORY_SYSTEM) 1027 continue; 1028 1029 flags = obj->flags; 1030 flags &= ~I915_BO_ALLOC_GPU_ONLY; 1031 err = __i915_ttm_migrate(obj, mr, flags); 1032 if (!err) 1033 break; 1034 } 1035 1036 if (err) { > 1037 drm_dbg(dev, "Unable to make resource CPU accessible(err = %pe)\n", err); 1038 dma_resv_unlock(bo->base.resv); 1039 ret = VM_FAULT_SIGBUS; 1040 goto out_rpm; 1041 } 1042 } 1043 1044 if (drm_dev_enter(dev, &idx)) { 1045 ret = ttm_bo_vm_fault_reserved(vmf, vmf->vma->vm_page_prot, 1046 TTM_BO_VM_NUM_PREFAULT); 1047 drm_dev_exit(idx); 1048 } else { 1049 ret = ttm_bo_vm_dummy_page(vmf, vmf->vma->vm_page_prot); 1050 } 1051 1052 if (ret == VM_FAULT_RETRY && !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) 1053 goto out_rpm; 1054 1055 /* ttm_bo_vm_reserve() already has dma_resv_lock */ 1056 if (ret == VM_FAULT_NOPAGE && wakeref && !obj->userfault_count) { 1057 obj->userfault_count = 1; 1058 mutex_lock(&to_gt(to_i915(obj->base.dev))->lmem_userfault_lock); 1059 list_add(&obj->userfault_link, &to_gt(to_i915(obj->base.dev))->lmem_userfault_list); 1060 mutex_unlock(&to_gt(to_i915(obj->base.dev))->lmem_userfault_lock); 1061 } 1062 1063 if (wakeref & CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND) 1064 intel_wakeref_auto(&to_gt(to_i915(obj->base.dev))->userfault_wakeref, 1065 msecs_to_jiffies_timeout(CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND)); 1066 1067 i915_ttm_adjust_lru(obj); 1068 1069 dma_resv_unlock(bo->base.resv); 1070 1071 out_rpm: 1072 if (wakeref) 1073 intel_runtime_pm_put(&to_i915(obj->base.dev)->runtime_pm, wakeref); 1074 1075 return ret; 1076 } 1077 -- 0-DAY CI Kernel Test Service https://01.org/lkp
