WebSVN – Kolibri OS – Diff – /drivers/video/drm/radeon/radeon_ttm.c

 static int radeon_ttm_global_init(struct radeon_device *rdev)
+{
 	struct drm_global_reference *global_ref;
 	int r;
+    ENTER();
 	rdev->mman.mem_global_referenced = false;
 	global_ref = &rdev->mman.mem_global_ref;
 	global_ref->global_type = DRM_GLOBAL_TTM_MEM;
 	global_ref->size = sizeof(struct ttm_mem_global);
 		drm_global_item_unref(&rdev->mman.mem_global_ref);
 		return r;
+	}
+	rdev->mman.mem_global_referenced = true;
+    LEAVE();
 	rdev->mman.mem_global_referenced = true;
 	return 0;
+}
 static int radeon_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
+{
 	return 0;
+}
+static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
+				struct ttm_mem_type_manager *man)
 static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
-				struct ttm_mem_type_manager *man)
+	struct radeon_device *rdev;
-	struct radeon_device *rdev;
+    ENTER();
 		break;
 	default:
 		DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
 		return -EINVAL;
+	}
+    LEAVE();
+	return 0;
+}
+static void radeon_evict_flags(struct ttm_buffer_object *bo,
+				struct ttm_placement *placement)
+{
+	struct radeon_bo *rbo;
+	static u32 placements = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
+	if (!radeon_ttm_bo_is_radeon_bo(bo)) {
+		placement->fpfn = 0;
+		placement->lpfn = 0;
+		placement->placement = &placements;
+		placement->busy_placement = &placements;
+		placement->num_placement = 1;
+		placement->num_busy_placement = 1;
+		return;
+	}
+	rbo = container_of(bo, struct radeon_bo, tbo);
+	switch (bo->mem.mem_type) {
+	case TTM_PL_VRAM:
+		if (rbo->rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready == false)
+			radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_CPU);
+		else
+			radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_GTT);
+		break;
+	case TTM_PL_TT:
+	default:
+		radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_CPU);
+	}
+	*placement = rbo->placement;
+}
+static int radeon_verify_access(struct ttm_buffer_object *bo, struct file *filp)
+{
+	return 0;
+}
+static void radeon_move_null(struct ttm_buffer_object *bo,
+			     struct ttm_mem_reg *new_mem)
+{
+	struct ttm_mem_reg *old_mem = &bo->mem;
+	BUG_ON(old_mem->mm_node != NULL);
+	*old_mem = *new_mem;
+	new_mem->mm_node = NULL;
+}
+static void radeon_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
+{
+}
+static int radeon_sync_obj_wait(void *sync_obj, bool lazy, bool interruptible)
+{
+	return radeon_fence_wait((struct radeon_fence *)sync_obj, interruptible);
+}
+static int radeon_sync_obj_flush(void *sync_obj)
+{
+	return 0;
+}
+static void radeon_sync_obj_unref(void **sync_obj)
+{
+	radeon_fence_unref((struct radeon_fence **)sync_obj);
+}
+static void *radeon_sync_obj_ref(void *sync_obj)
+{
+	return radeon_fence_ref((struct radeon_fence *)sync_obj);
+}
+static bool radeon_sync_obj_signaled(void *sync_obj)
+{
+	return radeon_fence_signaled((struct radeon_fence *)sync_obj);
+}
+/*
+ * TTM backend functions.
+ */
+struct radeon_ttm_tt {
+	struct ttm_dma_tt		ttm;
+	struct radeon_device		*rdev;
+	u64				offset;
+};
+static int radeon_ttm_backend_bind(struct ttm_tt *ttm,
+				   struct ttm_mem_reg *bo_mem)
+{
+	struct radeon_ttm_tt *gtt = (void*)ttm;
+	int r;
+	gtt->offset = (unsigned long)(bo_mem->start << PAGE_SHIFT);
+	if (!ttm->num_pages) {
+		WARN(1, "nothing to bind %lu pages for mreg %p back %p!\n",
+		     ttm->num_pages, bo_mem, ttm);
+	}
+	r = radeon_gart_bind(gtt->rdev, gtt->offset,
+			     ttm->num_pages, ttm->pages, gtt->ttm.dma_address);
+	if (r) {
+		DRM_ERROR("failed to bind %lu pages at 0x%08X\n",
+			  ttm->num_pages, (unsigned)gtt->offset);
+		return r;
+	}
+	return 0;
+}
+static int radeon_ttm_backend_unbind(struct ttm_tt *ttm)
+{
+	struct radeon_ttm_tt *gtt = (void *)ttm;
+	radeon_gart_unbind(gtt->rdev, gtt->offset, ttm->num_pages);
 	return 0;
+}
+static void radeon_ttm_backend_destroy(struct ttm_tt *ttm)
+{
+	struct radeon_ttm_tt *gtt = (void *)ttm;
+	ttm_dma_tt_fini(>t->ttm);
+	kfree(gtt);
+}
+static struct ttm_backend_func radeon_backend_func = {
+	.bind = &radeon_ttm_backend_bind,
+	.unbind = &radeon_ttm_backend_unbind,
+	.destroy = &radeon_ttm_backend_destroy,
+};
+static struct ttm_tt *radeon_ttm_tt_create(struct ttm_bo_device *bdev,
+				    unsigned long size, uint32_t page_flags,
+				    struct page *dummy_read_page)
+{
+	struct radeon_device *rdev;
+	struct radeon_ttm_tt *gtt;
+	rdev = radeon_get_rdev(bdev);
+#if __OS_HAS_AGP
+	if (rdev->flags & RADEON_IS_AGP) {
+		return ttm_agp_tt_create(bdev, rdev->ddev->agp->bridge,
+					 size, page_flags, dummy_read_page);
+	}
+#endif
+	gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
+	if (gtt == NULL) {
+		return NULL;
+	}
+	gtt->ttm.ttm.func = &radeon_backend_func;
+	gtt->rdev = rdev;
+	if (ttm_dma_tt_init(>t->ttm, bdev, size, page_flags, dummy_read_page)) {
+		kfree(gtt);
+		return NULL;
+	}
+	return >t->ttm.ttm;
+}
+static struct ttm_bo_driver radeon_bo_driver = {
+	.ttm_tt_create = &radeon_ttm_tt_create,
-static struct ttm_bo_driver radeon_bo_driver = {
+//	.ttm_tt_populate = &radeon_ttm_tt_populate,
-//   .create_ttm_backend_entry = &radeon_create_ttm_backend_entry,
+//	.ttm_tt_unpopulate = &radeon_ttm_tt_unpopulate,
-//   .invalidate_caches = &radeon_invalidate_caches,
+//	.invalidate_caches = &radeon_invalidate_caches,
-    .init_mem_type = &radeon_init_mem_type,
+	.init_mem_type = &radeon_init_mem_type,
-//   .evict_flags = &radeon_evict_flags,
+//	.evict_flags = &radeon_evict_flags,
-//   .move = &radeon_bo_move,
+//	.move = &radeon_bo_move,
-//   .sync_obj_flush = &radeon_sync_obj_flush,
+//	.sync_obj_flush = &radeon_sync_obj_flush,
-//   .sync_obj_unref = &radeon_sync_obj_unref,
+//	.sync_obj_unref = &radeon_sync_obj_unref,
-//   .sync_obj_ref = &radeon_sync_obj_ref,
+//	.sync_obj_ref = &radeon_sync_obj_ref,
-//   .move_notify = &radeon_bo_move_notify,
+//	.move_notify = &radeon_bo_move_notify,
-//   .fault_reserve_notify = &radeon_bo_fault_reserve_notify,
+//	.fault_reserve_notify = &radeon_bo_fault_reserve_notify,
+//	.io_mem_reserve = &radeon_ttm_io_mem_reserve,
+//	.io_mem_free = &radeon_ttm_io_mem_free,
 };
 int radeon_ttm_init(struct radeon_device *rdev)
+{
+	int r;
-	int r;
+    ENTER();
 	r = radeon_ttm_global_init(rdev);
 	if (r) {
 		return r;
 				rdev->mc.real_vram_size >> PAGE_SHIFT);
 	if (r) {
 		DRM_ERROR("Failed initializing VRAM heap.\n");
 		return r;
+	}
-	r = radeon_bo_create(rdev, NULL, 256 * 1024, true,
+//   r = radeon_bo_create(rdev, 256 * 1024, PAGE_SIZE, true,
-				RADEON_GEM_DOMAIN_VRAM,
+//               RADEON_GEM_DOMAIN_VRAM,
-				&rdev->stollen_vga_memory);
+//                NULL, &rdev->stollen_vga_memory);
-	if (r) {
+//   if (r) {
-		return r;
+//       return r;
-	}
+//   }
-	r = radeon_bo_reserve(rdev->stollen_vga_memory, false);
+//   r = radeon_bo_reserve(rdev->stollen_vga_memory, false);
-	if (r)
+//   if (r)
-		return r;
+//       return r;
-	r = radeon_bo_pin(rdev->stollen_vga_memory, RADEON_GEM_DOMAIN_VRAM, NULL);
+//   r = radeon_bo_pin(rdev->stollen_vga_memory, RADEON_GEM_DOMAIN_VRAM, NULL);
-	radeon_bo_unreserve(rdev->stollen_vga_memory);
+//   radeon_bo_unreserve(rdev->stollen_vga_memory);
-	if (r) {
+//   if (r) {
-		radeon_bo_unref(&rdev->stollen_vga_memory);
+//       radeon_bo_unref(&rdev->stollen_vga_memory);
-		return r;
+//       return r;
+//   }
-	}
 	DRM_INFO("radeon: %uM of VRAM memory ready\n",
 		 (unsigned)rdev->mc.real_vram_size / (1024 * 1024));
 	r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_TT,
 				rdev->mc.gtt_size >> PAGE_SHIFT);
 	if (r) {
 		DRM_ERROR("Failed initializing GTT heap.\n");
 		return r;
+	}
 	DRM_INFO("radeon: %uM of GTT memory ready.\n",
 		 (unsigned)(rdev->mc.gtt_size / (1024 * 1024)));
-	if (unlikely(rdev->mman.bdev.dev_mapping == NULL)) {
 		rdev->mman.bdev.dev_mapping = rdev->ddev->dev_mapping;
-	}
-	r = radeon_ttm_debugfs_init(rdev);
-	if (r) {
-		DRM_ERROR("Failed to init debugfs\n");
-		return r;
+    LEAVE();
-	return 0;
+    return 0;
-}
+}
+/* this should only be called at bootup or when userspace
+ * isn't running */
+void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size)
+{
+	struct ttm_mem_type_manager *man;
+	if (!rdev->mman.initialized)
+		return;
+	man = &rdev->mman.bdev.man[TTM_PL_VRAM];
+	/* this just adjusts TTM size idea, which sets lpfn to the correct value */
+	man->size = size >> PAGE_SHIFT;
+}
+static struct vm_operations_struct radeon_ttm_vm_ops;
+static const struct vm_operations_struct *ttm_vm_ops = NULL;
+#if 0
+radeon_bo_init
+{
+    <6>[drm] Detected VRAM RAM=1024M, BAR=256M
+    <6>[drm] RAM width 128bits DDR
+    radeon_ttm_init
+    {
+        radeon_ttm_global_init
+        {
+            radeon_ttm_mem_global_init
+            ttm_bo_global_init
+        }
+        ttm_bo_device_init
+        {
+            ttm_bo_init_mm
+            {
+                radeon_init_mem_type
+            };
+        }
+        ttm_bo_init_mm
+        {
+            radeon_init_mem_type

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/radeon/radeon_ttm.c – Rev 2997 → 3764