drm/i915/selftests: Move mock_vma to the heap to reduce stack_frame (34f5fe12) · Commits · 戴 / test

drivers/gpu/drm/i915/selftests/i915_gem_gtt.c

+12 −7

Original line number	Diff line number	Diff line
		@@ -212,10 +212,12 @@ static int lowlevel_hole(struct drm_i915_private *i915,
		unsigned long end_time)
		{
		I915_RND_STATE(seed_prng);
		struct i915_vma *mock_vma;
		unsigned int size;
		struct i915_vma mock_vma;

		memset(&mock_vma, 0, sizeof(struct i915_vma));
		mock_vma = kzalloc(sizeof(*mock_vma), GFP_KERNEL);
		if (!mock_vma)
		return -ENOMEM;

		/* Keep creating larger objects until one cannot fit into the hole */
		for (size = 12; (hole_end - hole_start) >> size; size++) {
		@@ -239,8 +241,10 @@ static int lowlevel_hole(struct drm_i915_private *i915,
		if (order)
		break;
		} while (count >>= 1);
		if (!count)
		if (!count) {
		kfree(mock_vma);
		return -ENOMEM;
		}
		GEM_BUG_ON(!order);

		GEM_BUG_ON(count * BIT_ULL(size) > vm->total);
		@@ -283,12 +287,12 @@ static int lowlevel_hole(struct drm_i915_private *i915,
		vm->allocate_va_range(vm, addr, BIT_ULL(size)))
		break;

		mock_vma.pages = obj->mm.pages;
		mock_vma.node.size = BIT_ULL(size);
		mock_vma.node.start = addr;
		mock_vma->pages = obj->mm.pages;
		mock_vma->node.size = BIT_ULL(size);
		mock_vma->node.start = addr;

		with_intel_runtime_pm(&i915->runtime_pm, wakeref)
		vm->insert_entries(vm, &mock_vma,
		vm->insert_entries(vm, mock_vma,
		I915_CACHE_NONE, 0);
		}
		count = n;
		@@ -311,6 +315,7 @@ static int lowlevel_hole(struct drm_i915_private *i915,
		cleanup_freed_objects(i915);
		}

		kfree(mock_vma);
		return 0;
		}