1 files changed, 136 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/selftests/mock_gtt.c b/drivers/gpu/drm/i915/selftests/mock_gtt.c
new file mode 100644
index 000000000..568840e7c
--- /dev/null
+++ b/drivers/gpu/drm/i915/selftests/mock_gtt.c
@@ -0,0 +1,136 @@
+/*
+ * Copyright © 2016 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#include "mock_gtt.h"
+
+static void mock_insert_page(struct i915_address_space *vm,
+			     dma_addr_t addr,
+			     u64 offset,
+			     enum i915_cache_level level,
+			     u32 flags)
+{
+}
+
+static void mock_insert_entries(struct i915_address_space *vm,
+				struct i915_vma_resource *vma_res,
+				enum i915_cache_level level, u32 flags)
+{
+}
+
+static void mock_bind_ppgtt(struct i915_address_space *vm,
+			    struct i915_vm_pt_stash *stash,
+			    struct i915_vma_resource *vma_res,
+			    enum i915_cache_level cache_level,
+			    u32 flags)
+{
+	GEM_BUG_ON(flags & I915_VMA_GLOBAL_BIND);
+	vma_res->bound_flags |= flags;
+}
+
+static void mock_unbind_ppgtt(struct i915_address_space *vm,
+			      struct i915_vma_resource *vma_res)
+{
+}
+
+static void mock_cleanup(struct i915_address_space *vm)
+{
+}
+
+static void mock_clear_range(struct i915_address_space *vm,
+			     u64 start, u64 length)
+{
+}
+
+struct i915_ppgtt *mock_ppgtt(struct drm_i915_private *i915, const char *name)
+{
+	struct i915_ppgtt *ppgtt;
+
+	ppgtt = kzalloc(sizeof(*ppgtt), GFP_KERNEL);
+	if (!ppgtt)
+		return NULL;
+
+	ppgtt->vm.gt = to_gt(i915);
+	ppgtt->vm.i915 = i915;
+	ppgtt->vm.total = round_down(U64_MAX, PAGE_SIZE);
+	ppgtt->vm.dma = i915->drm.dev;
+
+	i915_address_space_init(&ppgtt->vm, VM_CLASS_PPGTT);
+
+	ppgtt->vm.alloc_pt_dma = alloc_pt_dma;
+	ppgtt->vm.alloc_scratch_dma = alloc_pt_dma;
+
+	ppgtt->vm.clear_range = mock_clear_range;
+	ppgtt->vm.insert_page = mock_insert_page;
+	ppgtt->vm.insert_entries = mock_insert_entries;
+	ppgtt->vm.cleanup = mock_cleanup;
+
+	ppgtt->vm.vma_ops.bind_vma    = mock_bind_ppgtt;
+	ppgtt->vm.vma_ops.unbind_vma  = mock_unbind_ppgtt;
+
+	return ppgtt;
+}
+
+static void mock_bind_ggtt(struct i915_address_space *vm,
+			   struct i915_vm_pt_stash *stash,
+			   struct i915_vma_resource *vma_res,
+			   enum i915_cache_level cache_level,
+			   u32 flags)
+{
+}
+
+static void mock_unbind_ggtt(struct i915_address_space *vm,
+			     struct i915_vma_resource *vma_res)
+{
+}
+
+void mock_init_ggtt(struct intel_gt *gt)
+{
+	struct i915_ggtt *ggtt = gt->ggtt;
+
+	ggtt->vm.gt = gt;
+	ggtt->vm.i915 = gt->i915;
+	ggtt->vm.is_ggtt = true;
+
+	ggtt->gmadr = (struct resource) DEFINE_RES_MEM(0, 2048 * PAGE_SIZE);
+	ggtt->mappable_end = resource_size(&ggtt->gmadr);
+	ggtt->vm.total = 4096 * PAGE_SIZE;
+
+	ggtt->vm.alloc_pt_dma = alloc_pt_dma;
+	ggtt->vm.alloc_scratch_dma = alloc_pt_dma;
+
+	ggtt->vm.clear_range = mock_clear_range;
+	ggtt->vm.insert_page = mock_insert_page;
+	ggtt->vm.insert_entries = mock_insert_entries;
+	ggtt->vm.cleanup = mock_cleanup;
+
+	ggtt->vm.vma_ops.bind_vma    = mock_bind_ggtt;
+	ggtt->vm.vma_ops.unbind_vma  = mock_unbind_ggtt;
+
+	i915_address_space_init(&ggtt->vm, VM_CLASS_GGTT);
+}
+
+void mock_fini_ggtt(struct i915_ggtt *ggtt)
+{
+	i915_address_space_fini(&ggtt->vm);
+}