diff options
| -rw-r--r-- | linux-core/i915_gem.c | 76 |
1 files changed, 52 insertions, 24 deletions
diff --git a/linux-core/i915_gem.c b/linux-core/i915_gem.c index c2d1fab6..d14b2f2d 100644 --- a/linux-core/i915_gem.c +++ b/linux-core/i915_gem.c @@ -1298,27 +1298,25 @@ i915_gem_object_check_coherency(struct drm_gem_object *obj, int handle) #endif /** - * Bind an object to the GTT and evaluate the relocations landing in it. + * Pin an object to the GTT and evaluate the relocations landing in it. */ static int -i915_gem_object_bind_and_relocate(struct drm_gem_object *obj, - struct drm_file *file_priv, - struct drm_i915_gem_exec_object *entry) +i915_gem_object_pin_and_relocate(struct drm_gem_object *obj, + struct drm_file *file_priv, + struct drm_i915_gem_exec_object *entry) { struct drm_device *dev = obj->dev; struct drm_i915_gem_relocation_entry reloc; struct drm_i915_gem_relocation_entry __user *relocs; struct drm_i915_gem_object *obj_priv = obj->driver_private; - int i; + int i, ret; uint32_t last_reloc_offset = -1; void *reloc_page = NULL; /* Choose the GTT offset for our buffer and put it there. */ - if (obj_priv->gtt_space == NULL) { - i915_gem_object_bind_to_gtt(obj, (unsigned) entry->alignment); - if (obj_priv->gtt_space == NULL) - return -ENOMEM; - } + ret = i915_gem_object_pin(obj, (uint32_t) entry->alignment); + if (ret) + return ret; entry->offset = obj_priv->gtt_offset; @@ -1334,13 +1332,17 @@ i915_gem_object_bind_and_relocate(struct drm_gem_object *obj, int ret; ret = copy_from_user(&reloc, relocs + i, sizeof(reloc)); - if (ret != 0) + if (ret != 0) { + i915_gem_object_unpin(obj); return ret; + } target_obj = drm_gem_object_lookup(obj->dev, file_priv, reloc.target_handle); - if (target_obj == NULL) + if (target_obj == NULL) { + i915_gem_object_unpin(obj); return -EINVAL; + } target_obj_priv = target_obj->driver_private; /* The target buffer should have appeared before us in the @@ -1350,6 +1352,7 @@ i915_gem_object_bind_and_relocate(struct drm_gem_object *obj, DRM_ERROR("No GTT space found for object %d\n", reloc.target_handle); drm_gem_object_unreference(target_obj); + i915_gem_object_unpin(obj); return -EINVAL; } @@ -1359,6 +1362,7 @@ i915_gem_object_bind_and_relocate(struct drm_gem_object *obj, obj, reloc.target_handle, (int) reloc.offset, (int) obj->size); drm_gem_object_unreference(target_obj); + i915_gem_object_unpin(obj); return -EINVAL; } if (reloc.offset & 3) { @@ -1367,6 +1371,7 @@ i915_gem_object_bind_and_relocate(struct drm_gem_object *obj, obj, reloc.target_handle, (int) reloc.offset); drm_gem_object_unreference(target_obj); + i915_gem_object_unpin(obj); return -EINVAL; } @@ -1380,6 +1385,7 @@ i915_gem_object_bind_and_relocate(struct drm_gem_object *obj, reloc.write_domain, target_obj->pending_write_domain); drm_gem_object_unreference(target_obj); + i915_gem_object_unpin(obj); return -EINVAL; } @@ -1440,6 +1446,7 @@ i915_gem_object_bind_and_relocate(struct drm_gem_object *obj, last_reloc_offset = reloc_offset; if (reloc_page == NULL) { drm_gem_object_unreference(target_obj); + i915_gem_object_unpin(obj); return -ENOMEM; } } @@ -1462,6 +1469,7 @@ i915_gem_object_bind_and_relocate(struct drm_gem_object *obj, ret = copy_to_user(relocs + i, &reloc, sizeof(reloc)); if (ret != 0) { drm_gem_object_unreference(target_obj); + i915_gem_object_unpin(obj); return ret; } @@ -1573,7 +1581,7 @@ i915_gem_execbuffer(struct drm_device *dev, void *data, struct drm_i915_gem_exec_object *exec_list = NULL; struct drm_gem_object **object_list = NULL; struct drm_gem_object *batch_obj; - int ret, i; + int ret, i, pinned = 0; uint64_t exec_offset; uint32_t seqno, flush_domains; @@ -1632,13 +1640,14 @@ i915_gem_execbuffer(struct drm_device *dev, void *data, object_list[i]->pending_read_domains = 0; object_list[i]->pending_write_domain = 0; - ret = i915_gem_object_bind_and_relocate(object_list[i], - file_priv, - &exec_list[i]); + ret = i915_gem_object_pin_and_relocate(object_list[i], + file_priv, + &exec_list[i]); if (ret) { DRM_ERROR("object bind and relocate failed %d\n", ret); goto err; } + pinned = i; } /* Set the pending read domains for the batch buffer to COMMAND */ @@ -1735,6 +1744,8 @@ i915_gem_execbuffer(struct drm_device *dev, void *data, args->buffer_count, ret); err: if (object_list != NULL) { + for (i = 0; i < pinned; i++) + i915_gem_object_unpin (object_list[i]); for (i = 0; i < args->buffer_count; i++) drm_gem_object_unreference(object_list[i]); } @@ -1752,32 +1763,47 @@ pre_mutex_err: int i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment) { - struct drm_device *dev = obj->dev; struct drm_i915_gem_object *obj_priv = obj->driver_private; int ret; if (obj_priv->gtt_space == NULL) { ret = i915_gem_object_bind_to_gtt(obj, alignment); if (ret != 0) { - DRM_ERROR("Failure to bind in " - "i915_gem_pin_ioctl(): %d\n", - ret); - drm_gem_object_unreference(obj); - mutex_unlock(&dev->struct_mutex); + DRM_ERROR("Failure to bind: %d", ret); return ret; } } - obj_priv->pin_count++; + + /* If the object is not active and not pending a flush, + * remove it from the inactive list + */ + if (obj_priv->pin_count == 1 && + !obj_priv->active && + obj->write_domain == 0) + list_del_init(&obj_priv->list); + return 0; } void i915_gem_object_unpin(struct drm_gem_object *obj) { + struct drm_device *dev = obj->dev; + drm_i915_private_t *dev_priv = dev->dev_private; struct drm_i915_gem_object *obj_priv = obj->driver_private; obj_priv->pin_count--; + BUG_ON(obj_priv->pin_count < 0); + BUG_ON(obj_priv->gtt_space == NULL); + + /* If the object is no longer pinned, and is + * neither active nor being flushed, then stick it on + * the inactive list + */ + if (obj_priv->pin_count == 0 && + !obj_priv->active && obj->write_domain == 0) + list_move_tail(&obj_priv->list, &dev_priv->mm.inactive_list); } int @@ -1963,8 +1989,10 @@ i915_gem_init_ringbuffer(struct drm_device *dev) obj_priv = obj->driver_private; ret = i915_gem_object_pin(obj, 4096); - if (ret != 0) + if (ret != 0) { + drm_gem_object_unreference(obj); return ret; + } /* Set up the kernel mapping for the ring. */ dev_priv->ring.Size = obj->size; |