1 files changed, 69 insertions, 78 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
index 675a72ef305d..1f3302aebeff 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
@@ -26,23 +26,12 @@
 
 #include "amdgpu.h"
 
-struct amdgpu_gtt_node {
-	struct ttm_buffer_object *tbo;
-	struct ttm_range_mgr_node base;
-};
-
 static inline struct amdgpu_gtt_mgr *
 to_gtt_mgr(struct ttm_resource_manager *man)
 {
 	return container_of(man, struct amdgpu_gtt_mgr, manager);
 }
 
-static inline struct amdgpu_gtt_node *
-to_amdgpu_gtt_node(struct ttm_resource *res)
-{
-	return container_of(res, struct amdgpu_gtt_node, base.base);
-}
-
 /**
  * DOC: mem_info_gtt_total
  *
@@ -60,7 +49,7 @@ static ssize_t amdgpu_mem_info_gtt_total_show(struct device *dev,
 	struct ttm_resource_manager *man;
 
 	man = ttm_manager_type(&adev->mman.bdev, TTM_PL_TT);
-	return sysfs_emit(buf, "%llu\n", man->size * PAGE_SIZE);
+	return sysfs_emit(buf, "%llu\n", man->size);
 }
 
 /**
@@ -77,10 +66,9 @@ static ssize_t amdgpu_mem_info_gtt_used_show(struct device *dev,
 {
 	struct drm_device *ddev = dev_get_drvdata(dev);
 	struct amdgpu_device *adev = drm_to_adev(ddev);
-	struct ttm_resource_manager *man;
+	struct ttm_resource_manager *man = &adev->mman.gtt_mgr.manager;
 
-	man = ttm_manager_type(&adev->mman.bdev, TTM_PL_TT);
-	return sysfs_emit(buf, "%llu\n", amdgpu_gtt_mgr_usage(man));
+	return sysfs_emit(buf, "%llu\n", ttm_resource_manager_usage(man));
 }
 
 static DEVICE_ATTR(mem_info_gtt_total, S_IRUGO,
@@ -107,9 +95,9 @@ const struct attribute_group amdgpu_gtt_mgr_attr_group = {
  */
 bool amdgpu_gtt_mgr_has_gart_addr(struct ttm_resource *res)
 {
-	struct amdgpu_gtt_node *node = to_amdgpu_gtt_node(res);
+	struct ttm_range_mgr_node *node = to_ttm_range_mgr_node(res);
 
-	return drm_mm_node_allocated(&node->base.mm_nodes[0]);
+	return drm_mm_node_allocated(&node->mm_nodes[0]);
 }
 
 /**
@@ -129,28 +117,23 @@ static int amdgpu_gtt_mgr_new(struct ttm_resource_manager *man,
 {
 	struct amdgpu_gtt_mgr *mgr = to_gtt_mgr(man);
 	uint32_t num_pages = PFN_UP(tbo->base.size);
-	struct amdgpu_gtt_node *node;
+	struct ttm_range_mgr_node *node;
 	int r;
 
-	if (!(place->flags & TTM_PL_FLAG_TEMPORARY) &&
-	    atomic64_add_return(num_pages, &mgr->used) >  man->size) {
-		atomic64_sub(num_pages, &mgr->used);
-		return -ENOSPC;
-	}
+	node = kzalloc(struct_size(node, mm_nodes, 1), GFP_KERNEL);
+	if (!node)
+		return -ENOMEM;
 
-	node = kzalloc(struct_size(node, base.mm_nodes, 1), GFP_KERNEL);
-	if (!node) {
-		r = -ENOMEM;
-		goto err_out;
+	ttm_resource_init(tbo, place, &node->base);
+	if (!(place->flags & TTM_PL_FLAG_TEMPORARY) &&
+	    ttm_resource_manager_usage(man) > man->size) {
+		r = -ENOSPC;
+		goto err_free;
 	}
 
-	node->tbo = tbo;
-	ttm_resource_init(tbo, place, &node->base.base);
-
 	if (place->lpfn) {
 		spin_lock(&mgr->lock);
-		r = drm_mm_insert_node_in_range(&mgr->mm,
-						&node->base.mm_nodes[0],
+		r = drm_mm_insert_node_in_range(&mgr->mm, &node->mm_nodes[0],
 						num_pages, tbo->page_alignment,
 						0, place->fpfn, place->lpfn,
 						DRM_MM_INSERT_BEST);
@@ -158,23 +141,19 @@ static int amdgpu_gtt_mgr_new(struct ttm_resource_manager *man,
 		if (unlikely(r))
 			goto err_free;
 
-		node->base.base.start = node->base.mm_nodes[0].start;
+		node->base.start = node->mm_nodes[0].start;
 	} else {
-		node->base.mm_nodes[0].start = 0;
-		node->base.mm_nodes[0].size = node->base.base.num_pages;
-		node->base.base.start = AMDGPU_BO_INVALID_OFFSET;
+		node->mm_nodes[0].start = 0;
+		node->mm_nodes[0].size = node->base.num_pages;
+		node->base.start = AMDGPU_BO_INVALID_OFFSET;
 	}
 
-	*res = &node->base.base;
+	*res = &node->base;
 	return 0;
 
 err_free:
+	ttm_resource_fini(man, &node->base);
 	kfree(node);
-
-err_out:
-	if (!(place->flags & TTM_PL_FLAG_TEMPORARY))
-		atomic64_sub(num_pages, &mgr->used);
-
 	return r;
 }
 
@@ -189,62 +168,76 @@ err_out:
 static void amdgpu_gtt_mgr_del(struct ttm_resource_manager *man,
 			       struct ttm_resource *res)
 {
-	struct amdgpu_gtt_node *node = to_amdgpu_gtt_node(res);
+	struct ttm_range_mgr_node *node = to_ttm_range_mgr_node(res);
 	struct amdgpu_gtt_mgr *mgr = to_gtt_mgr(man);
 
 	spin_lock(&mgr->lock);
-	if (drm_mm_node_allocated(&node->base.mm_nodes[0]))
-		drm_mm_remove_node(&node->base.mm_nodes[0]);
+	if (drm_mm_node_allocated(&node->mm_nodes[0]))
+		drm_mm_remove_node(&node->mm_nodes[0]);
 	spin_unlock(&mgr->lock);
 
-	if (!(res->placement & TTM_PL_FLAG_TEMPORARY))
-		atomic64_sub(res->num_pages, &mgr->used);
-
+	ttm_resource_fini(man, res);
 	kfree(node);
 }
 
 /**
- * amdgpu_gtt_mgr_usage - return usage of GTT domain
- *
- * @man: TTM memory type manager
- *
- * Return how many bytes are used in the GTT domain
- */
-uint64_t amdgpu_gtt_mgr_usage(struct ttm_resource_manager *man)
-{
-	struct amdgpu_gtt_mgr *mgr = to_gtt_mgr(man);
-
-	return atomic64_read(&mgr->used) * PAGE_SIZE;
-}
-
-/**
  * amdgpu_gtt_mgr_recover - re-init gart
  *
- * @man: TTM memory type manager
+ * @mgr: amdgpu_gtt_mgr pointer
  *
  * Re-init the gart for each known BO in the GTT.
  */
-int amdgpu_gtt_mgr_recover(struct ttm_resource_manager *man)
+void amdgpu_gtt_mgr_recover(struct amdgpu_gtt_mgr *mgr)
 {
-	struct amdgpu_gtt_mgr *mgr = to_gtt_mgr(man);
-	struct amdgpu_device *adev;
-	struct amdgpu_gtt_node *node;
+	struct ttm_range_mgr_node *node;
 	struct drm_mm_node *mm_node;
-	int r = 0;
+	struct amdgpu_device *adev;
 
 	adev = container_of(mgr, typeof(*adev), mman.gtt_mgr);
 	spin_lock(&mgr->lock);
 	drm_mm_for_each_node(mm_node, &mgr->mm) {
-		node = container_of(mm_node, typeof(*node), base.mm_nodes[0]);
-		r = amdgpu_ttm_recover_gart(node->tbo);
-		if (r)
-			break;
+		node = container_of(mm_node, typeof(*node), mm_nodes[0]);
+		amdgpu_ttm_recover_gart(node->base.bo);
 	}
 	spin_unlock(&mgr->lock);
 
 	amdgpu_gart_invalidate_tlb(adev);
+}
 
-	return r;
+/**
+ * amdgpu_gtt_mgr_intersects - test for intersection
+ *
+ * @man: Our manager object
+ * @res: The resource to test
+ * @place: The place for the new allocation
+ * @size: The size of the new allocation
+ *
+ * Simplified intersection test, only interesting if we need GART or not.
+ */
+static bool amdgpu_gtt_mgr_intersects(struct ttm_resource_manager *man,
+				      struct ttm_resource *res,
+				      const struct ttm_place *place,
+				      size_t size)
+{
+	return !place->lpfn || amdgpu_gtt_mgr_has_gart_addr(res);
+}
+
+/**
+ * amdgpu_gtt_mgr_compatible - test for compatibility
+ *
+ * @man: Our manager object
+ * @res: The resource to test
+ * @place: The place for the new allocation
+ * @size: The size of the new allocation
+ *
+ * Simplified compatibility test.
+ */
+static bool amdgpu_gtt_mgr_compatible(struct ttm_resource_manager *man,
+				      struct ttm_resource *res,
+				      const struct ttm_place *place,
+				      size_t size)
+{
+	return !place->lpfn || amdgpu_gtt_mgr_has_gart_addr(res);
 }
 
 /**
@@ -263,14 +256,13 @@ static void amdgpu_gtt_mgr_debug(struct ttm_resource_manager *man,
 	spin_lock(&mgr->lock);
 	drm_mm_print(&mgr->mm, printer);
 	spin_unlock(&mgr->lock);
-
-	drm_printf(printer, "man size:%llu pages,  gtt used:%llu pages\n",
-		   man->size, atomic64_read(&mgr->used));
 }
 
 static const struct ttm_resource_manager_func amdgpu_gtt_mgr_func = {
 	.alloc = amdgpu_gtt_mgr_new,
 	.free = amdgpu_gtt_mgr_del,
+	.intersects = amdgpu_gtt_mgr_intersects,
+	.compatible = amdgpu_gtt_mgr_compatible,
 	.debug = amdgpu_gtt_mgr_debug
 };
 
@@ -291,13 +283,12 @@ int amdgpu_gtt_mgr_init(struct amdgpu_device *adev, uint64_t gtt_size)
 	man->use_tt = true;
 	man->func = &amdgpu_gtt_mgr_func;
 
-	ttm_resource_manager_init(man, gtt_size >> PAGE_SHIFT);
+	ttm_resource_manager_init(man, &adev->mman.bdev, gtt_size);
 
 	start = AMDGPU_GTT_MAX_TRANSFER_SIZE * AMDGPU_GTT_NUM_TRANSFER_WINDOWS;
 	size = (adev->gmc.gart_size >> PAGE_SHIFT) - start;
 	drm_mm_init(&mgr->mm, start, size);
 	spin_lock_init(&mgr->lock);
-	atomic64_set(&mgr->used, 0);
 
 	ttm_set_driver_manager(&adev->mman.bdev, TTM_PL_TT, &mgr->manager);
 	ttm_resource_manager_set_used(man, true);