diff options
| -rw-r--r-- | drivers/gpu/drm/drm_mm.c | 16 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 20 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_stolen.c | 37 | ||||
| -rw-r--r-- | include/drm/drm_mm.h | 9 |
4 files changed, 53 insertions, 29 deletions
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c index 07cf99c..9e8dfbc 100644 --- a/drivers/gpu/drm/drm_mm.c +++ b/drivers/gpu/drm/drm_mm.c @@ -147,12 +147,10 @@ static void drm_mm_insert_helper(struct drm_mm_node *hole_node, } } -struct drm_mm_node *drm_mm_create_block(struct drm_mm *mm, - unsigned long start, - unsigned long size, - bool atomic) +int drm_mm_create_block(struct drm_mm *mm, struct drm_mm_node *node, + unsigned long start, unsigned long size) { - struct drm_mm_node *hole, *node; + struct drm_mm_node *hole; unsigned long end = start + size; unsigned long hole_start; unsigned long hole_end; @@ -161,10 +159,6 @@ struct drm_mm_node *drm_mm_create_block(struct drm_mm *mm, if (hole_start > start || hole_end < end) continue; - node = drm_mm_kmalloc(mm, atomic); - if (unlikely(node == NULL)) - return NULL; - node->start = start; node->size = size; node->mm = mm; @@ -184,11 +178,11 @@ struct drm_mm_node *drm_mm_create_block(struct drm_mm *mm, node->hole_follows = 1; } - return node; + return 0; } WARN(1, "no hole found for block 0x%lx + 0x%lx\n", start, size); - return NULL; + return -ENOSPC; } EXPORT_SYMBOL(drm_mm_create_block); diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 66929ea..88180a5 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -629,14 +629,26 @@ void i915_gem_setup_global_gtt(struct drm_device *dev, /* Mark any preallocated objects as occupied */ list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) { + int ret; DRM_DEBUG_KMS("reserving preallocated space: %x + %zx\n", obj->gtt_offset, obj->base.size); BUG_ON(obj->gtt_space != I915_GTT_RESERVED); - obj->gtt_space = drm_mm_create_block(&dev_priv->mm.gtt_space, - obj->gtt_offset, - obj->base.size, - false); + obj->gtt_space = kzalloc(sizeof(*obj->gtt_space), GFP_KERNEL); + if (!obj->gtt_space) { + DRM_ERROR("Failed to preserve object at offset %x\n", + obj->gtt_offset); + continue; + } + ret = drm_mm_create_block(&dev_priv->mm.gtt_space, + obj->gtt_space, + obj->gtt_offset, + obj->base.size); + if (ret) { + DRM_DEBUG_KMS("Reservation failed\n"); + kfree(obj->gtt_space); + obj->gtt_space = NULL; + } obj->has_global_gtt_mapping = 1; } diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c index 0f18d75..2746ff2 100644 --- a/drivers/gpu/drm/i915/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/i915_gem_stolen.c @@ -330,6 +330,7 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_gem_object *obj; struct drm_mm_node *stolen; + int ret; if (dev_priv->mm.stolen_base == 0) return NULL; @@ -344,11 +345,15 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, if (WARN_ON(size == 0)) return NULL; - stolen = drm_mm_create_block(&dev_priv->mm.stolen, - stolen_offset, size, - false); - if (stolen == NULL) { + stolen = kzalloc(sizeof(*stolen), GFP_KERNEL); + if (!stolen) + return NULL; + + ret = drm_mm_create_block(&dev_priv->mm.stolen, stolen, stolen_offset, + size); + if (ret) { DRM_DEBUG_KMS("failed to allocate stolen space\n"); + kfree(stolen); return NULL; } @@ -369,13 +374,18 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, * later. */ if (drm_mm_initialized(&dev_priv->mm.gtt_space)) { - obj->gtt_space = drm_mm_create_block(&dev_priv->mm.gtt_space, - gtt_offset, size, - false); - if (obj->gtt_space == NULL) { + obj->gtt_space = kzalloc(sizeof(*obj->gtt_space), GFP_KERNEL); + if (!obj->gtt_space) { + DRM_DEBUG_KMS("-ENOMEM stolen GTT space\n"); + goto unref_out; + } + + ret = drm_mm_create_block(&dev_priv->mm.gtt_space, + obj->gtt_space, + gtt_offset, size); + if (ret) { DRM_DEBUG_KMS("failed to allocate stolen GTT space\n"); - drm_gem_object_unreference(&obj->base); - return NULL; + goto free_out; } } else obj->gtt_space = I915_GTT_RESERVED; @@ -387,6 +397,13 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, list_add_tail(&obj->mm_list, &dev_priv->mm.inactive_list); return obj; + +free_out: + kfree(obj->gtt_space); + obj->gtt_space = NULL; +unref_out: + drm_gem_object_unreference(&obj->base); + return NULL; } void diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h index 88591ef..d8b56b7 100644 --- a/include/drm/drm_mm.h +++ b/include/drm/drm_mm.h @@ -138,10 +138,10 @@ static inline unsigned long drm_mm_hole_node_end(struct drm_mm_node *hole_node) /* * Basic range manager support (drm_mm.c) */ -extern struct drm_mm_node *drm_mm_create_block(struct drm_mm *mm, - unsigned long start, - unsigned long size, - bool atomic); +extern int drm_mm_create_block(struct drm_mm *mm, + struct drm_mm_node *node, + unsigned long start, + unsigned long size); extern struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *node, unsigned long size, unsigned alignment, @@ -155,6 +155,7 @@ extern struct drm_mm_node *drm_mm_get_block_range_generic( unsigned long start, unsigned long end, int atomic); + static inline struct drm_mm_node *drm_mm_get_block(struct drm_mm_node *parent, unsigned long size, unsigned alignment) |
