diff options
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/instmem/base.c | 35 |
1 files changed, 27 insertions, 8 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/instmem/base.c b/drivers/gpu/drm/nouveau/core/subdev/instmem/base.c index 1188227ca6aa..6565f3dbbe04 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/instmem/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/instmem/base.c @@ -40,15 +40,21 @@ nouveau_instobj_create_(struct nouveau_object *parent, if (ret) return ret; + mutex_lock(&imem->base.mutex); list_add(&iobj->head, &imem->list); + mutex_unlock(&imem->base.mutex); return 0; } void nouveau_instobj_destroy(struct nouveau_instobj *iobj) { - if (iobj->head.prev) - list_del(&iobj->head); + struct nouveau_subdev *subdev = nv_subdev(iobj->base.engine); + + mutex_lock(&subdev->mutex); + list_del(&iobj->head); + mutex_unlock(&subdev->mutex); + return nouveau_object_destroy(&iobj->base); } @@ -88,6 +94,8 @@ nouveau_instmem_init(struct nouveau_instmem *imem) if (ret) return ret; + mutex_lock(&imem->base.mutex); + list_for_each_entry(iobj, &imem->list, head) { if (iobj->suspend) { for (i = 0; i < iobj->size; i += 4) @@ -97,6 +105,8 @@ nouveau_instmem_init(struct nouveau_instmem *imem) } } + mutex_unlock(&imem->base.mutex); + return 0; } @@ -104,17 +114,26 @@ int nouveau_instmem_fini(struct nouveau_instmem *imem, bool suspend) { struct nouveau_instobj *iobj; - int i; + int i, ret = 0; if (suspend) { + mutex_lock(&imem->base.mutex); + list_for_each_entry(iobj, &imem->list, head) { iobj->suspend = vmalloc(iobj->size); - if (iobj->suspend) { - for (i = 0; i < iobj->size; i += 4) - iobj->suspend[i / 4] = nv_ro32(iobj, i); - } else - return -ENOMEM; + if (!iobj->suspend) { + ret = -ENOMEM; + break; + } + + for (i = 0; i < iobj->size; i += 4) + iobj->suspend[i / 4] = nv_ro32(iobj, i); } + + mutex_unlock(&imem->base.mutex); + + if (ret) + return ret; } return nouveau_subdev_fini(&imem->base, suspend); |