[jimc:folio-pool-v2-lockdep 7/21] drivers/gpu/drm/drm_gpuvm.c:1113:36: error: 'gpuvm_scratchpad_key' undeclared

tree:   https://github.com/jimc/linux.git folio-pool-v2-lockdep
head:   e77ee8289ea0755b0ee299348504d4568f942d71
commit: 67cc13f51c541db3cb7b164a0213776c3ea871db [7/21] drm/gpuvm: Route gpuva_op allocations to folio_scratchpad
config: alpha-allmodconfig (https://download.01.org/0day-ci/archive/20260818/[email protected]/config)
compiler: alpha-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260818/[email protected]/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 <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All errors (new ones prefixed by >>):

   drivers/gpu/drm/drm_gpuvm.c: In function 'drm_gpuvm_init':
>> drivers/gpu/drm/drm_gpuvm.c:1113:36: error: 'gpuvm_scratchpad_key' undeclared (first use in this function)
    1113 |                                   &gpuvm_scratchpad_key);
         |                                    ^~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/drm_gpuvm.c:1113:36: note: each undeclared identifier is reported only once for each function it appears in


vim +/gpuvm_scratchpad_key +1113 drivers/gpu/drm/drm_gpuvm.c

  1074	
  1075	/**
  1076	 * drm_gpuvm_init() - initialize a &drm_gpuvm
  1077	 * @gpuvm: pointer to the &drm_gpuvm to initialize
  1078	 * @name: the name of the GPU VA space
  1079	 * @flags: the &drm_gpuvm_flags for this GPUVM
  1080	 * @drm: the &drm_device this VM resides in
  1081	 * @r_obj: the resv &drm_gem_object providing the GPUVM's common &dma_resv
  1082	 * @start_offset: the start offset of the GPU VA space
  1083	 * @range: the size of the GPU VA space
  1084	 * @reserve_offset: the start of the kernel reserved GPU VA area
  1085	 * @reserve_range: the size of the kernel reserved GPU VA area
  1086	 * @ops: &drm_gpuvm_ops called on &drm_gpuvm_sm_map / &drm_gpuvm_sm_unmap
  1087	 *
  1088	 * The &drm_gpuvm must be initialized with this function before use.
  1089	 *
  1090	 * Note that @gpuvm must be cleared to 0 before calling this function. The given
  1091	 * &name is expected to be managed by the surrounding driver structures.
  1092	 */
  1093	void
  1094	drm_gpuvm_init(struct drm_gpuvm *gpuvm, const char *name,
  1095		       enum drm_gpuvm_flags flags,
  1096		       struct drm_device *drm,
  1097		       struct drm_gem_object *r_obj,
  1098		       u64 start_offset, u64 range,
  1099		       u64 reserve_offset, u64 reserve_range,
  1100		       const struct drm_gpuvm_ops *ops)
  1101	{
  1102		gpuvm->rb.tree = RB_ROOT_CACHED;
  1103		INIT_LIST_HEAD(&gpuvm->rb.list);
  1104	
  1105		INIT_LIST_HEAD(&gpuvm->extobj.list);
  1106		spin_lock_init(&gpuvm->extobj.lock);
  1107	
  1108		INIT_LIST_HEAD(&gpuvm->evict.list);
  1109		spin_lock_init(&gpuvm->evict.lock);
  1110	
  1111		init_llist_head(&gpuvm->bo_defer);
  1112		folio_scratchpad_init_key(&gpuvm->va_scratchpad, get_order(SZ_64K),
> 1113					  &gpuvm_scratchpad_key);
  1114	
  1115		kref_init(&gpuvm->kref);
  1116	
  1117		gpuvm->name = name ? name : "unknown";
  1118		gpuvm->flags = flags;
  1119		gpuvm->ops = ops;
  1120		gpuvm->drm = drm;
  1121		gpuvm->r_obj = r_obj;
  1122	
  1123		drm_dev_get(drm);
  1124		drm_gem_object_get(r_obj);
  1125	
  1126		drm_gpuvm_warn_check_overflow(gpuvm, start_offset, range);
  1127		gpuvm->mm_start = start_offset;
  1128		gpuvm->mm_range = range;
  1129	
  1130		memset(&gpuvm->kernel_alloc_node, 0, sizeof(struct drm_gpuva));
  1131		if (reserve_range) {
  1132			gpuvm->kernel_alloc_node.va.addr = reserve_offset;
  1133			gpuvm->kernel_alloc_node.va.range = reserve_range;
  1134	
  1135			if (likely(!drm_gpuvm_warn_check_overflow(gpuvm, reserve_offset,
  1136								  reserve_range)))
  1137				__drm_gpuva_insert(gpuvm, &gpuvm->kernel_alloc_node);
  1138		}
  1139	}
  1140	EXPORT_SYMBOL_GPL(drm_gpuvm_init);
  1141	

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