diff options
Diffstat (limited to 'linux-core')
| -rw-r--r-- | linux-core/drm_bo.c | 30 | ||||
| -rw-r--r-- | linux-core/drm_objects.h | 6 |
2 files changed, 24 insertions, 12 deletions
diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index b67946eb..3e8ffa0f 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -2180,7 +2180,7 @@ restart: return 0; } -int drm_bo_clean_mm(struct drm_device *dev, unsigned mem_type) +int drm_bo_clean_mm(struct drm_device *dev, unsigned mem_type, int kern_clean) { struct drm_buffer_manager *bm = &dev->bm; struct drm_mem_type_manager *man = &bm->man[mem_type]; @@ -2196,6 +2196,13 @@ int drm_bo_clean_mm(struct drm_device *dev, unsigned mem_type) "memory manager type %u\n", mem_type); return ret; } + + if ((man->kern_init_type) && (kern_clean == 0)) { + DRM_ERROR("Trying to take down kernel initialized " + "memory manager type %u\n", mem_type); + return -EPERM; + } + man->use_type = 0; man->has_type = 0; @@ -2247,9 +2254,9 @@ static int drm_bo_lock_mm(struct drm_device *dev, unsigned mem_type) return ret; } -int drm_bo_init_mm(struct drm_device *dev, - unsigned type, - unsigned long p_offset, unsigned long p_size) +int drm_bo_init_mm(struct drm_device *dev, unsigned type, + unsigned long p_offset, unsigned long p_size, + int kern_init) { struct drm_buffer_manager *bm = &dev->bm; int ret = -EINVAL; @@ -2283,6 +2290,7 @@ int drm_bo_init_mm(struct drm_device *dev, } man->has_type = 1; man->use_type = 1; + man->kern_init_type = kern_init; man->size = p_size; INIT_LIST_HEAD(&man->lru); @@ -2316,7 +2324,7 @@ int drm_bo_driver_finish(struct drm_device *dev) man = &bm->man[i]; if (man->has_type) { man->use_type = 0; - if ((i != DRM_BO_MEM_LOCAL) && drm_bo_clean_mm(dev, i)) { + if ((i != DRM_BO_MEM_LOCAL) && drm_bo_clean_mm(dev, i, 1)) { ret = -EBUSY; DRM_ERROR("DRM memory manager type %d " "is not clean.\n", i); @@ -2386,7 +2394,7 @@ int drm_bo_driver_init(struct drm_device *dev) * Initialize the system memory buffer type. * Other types need to be driver / IOCTL initialized. */ - ret = drm_bo_init_mm(dev, DRM_BO_MEM_LOCAL, 0, 0); + ret = drm_bo_init_mm(dev, DRM_BO_MEM_LOCAL, 0, 0, 1); if (ret) goto out_unlock; @@ -2446,7 +2454,7 @@ int drm_mm_init_ioctl(struct drm_device *dev, void *data, struct drm_file *file_ goto out; } ret = drm_bo_init_mm(dev, arg->mem_type, - arg->p_offset, arg->p_size); + arg->p_offset, arg->p_size, 0); out: mutex_unlock(&dev->struct_mutex); @@ -2485,9 +2493,11 @@ int drm_mm_takedown_ioctl(struct drm_device *dev, void *data, struct drm_file *f goto out; } ret = 0; - if (drm_bo_clean_mm(dev, arg->mem_type)) { - DRM_ERROR("Memory manager type %d not clean. " - "Delaying takedown\n", arg->mem_type); + if ((ret = drm_bo_clean_mm(dev, arg->mem_type, 0))) { + if (ret == -EINVAL) + DRM_ERROR("Memory manager type %d not clean. " + "Delaying takedown\n", arg->mem_type); + ret = 0; } out: mutex_unlock(&dev->struct_mutex); diff --git a/linux-core/drm_objects.h b/linux-core/drm_objects.h index ae0725c1..69e3f67f 100644 --- a/linux-core/drm_objects.h +++ b/linux-core/drm_objects.h @@ -516,6 +516,7 @@ struct drm_buffer_object { struct drm_mem_type_manager { int has_type; int use_type; + int kern_init_type; struct drm_mm manager; struct list_head lru; struct list_head pinned; @@ -684,9 +685,10 @@ extern int drm_bo_mem_space(struct drm_buffer_object *bo, extern int drm_bo_move_buffer(struct drm_buffer_object *bo, uint64_t new_mem_flags, int no_wait, int move_unfenced); -extern int drm_bo_clean_mm(struct drm_device *dev, unsigned mem_type); +extern int drm_bo_clean_mm(struct drm_device *dev, unsigned mem_type, int kern_clean); extern int drm_bo_init_mm(struct drm_device *dev, unsigned type, - unsigned long p_offset, unsigned long p_size); + unsigned long p_offset, unsigned long p_size, + int kern_init); extern int drm_bo_handle_validate(struct drm_file *file_priv, uint32_t handle, uint64_t flags, uint64_t mask, uint32_t hint, uint32_t fence_class, int use_old_fence_class, |