diff options
Diffstat (limited to 'linux-core/drm_bo.c')
| -rw-r--r-- | linux-core/drm_bo.c | 71 |
1 files changed, 59 insertions, 12 deletions
diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index 95802fe2..c41f726c 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -574,7 +574,6 @@ void drm_putback_buffer_objects(struct drm_device *dev) } EXPORT_SYMBOL(drm_putback_buffer_objects); - /* * Note. The caller has to register (if applicable) * and deregister fence object usage. @@ -1758,7 +1757,7 @@ int drm_buffer_object_create(struct drm_device *dev, size += buffer_start & ~PAGE_MASK; num_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT; if (num_pages == 0) { - DRM_ERROR("Illegal buffer object size.\n"); + DRM_ERROR("Illegal buffer object size %ld.\n", size); return -EINVAL; } @@ -2180,7 +2179,7 @@ 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 +2195,13 @@ 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 +2253,9 @@ 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 +2289,8 @@ 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); INIT_LIST_HEAD(&man->pinned); @@ -2315,7 +2323,7 @@ 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); @@ -2351,6 +2359,7 @@ out: mutex_unlock(&dev->struct_mutex); return ret; } +EXPORT_SYMBOL(drm_bo_driver_finish); /* * This function is intended to be called on drm driver load. @@ -2385,7 +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; @@ -2445,7 +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); @@ -2484,9 +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); @@ -2553,6 +2564,42 @@ int drm_mm_unlock_ioctl(struct drm_device *dev, return 0; } +int drm_mm_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + struct drm_mm_info_arg *arg = data; + struct drm_buffer_manager *bm = &dev->bm; + struct drm_bo_driver *driver = dev->driver->bo_driver; + struct drm_mem_type_manager *man; + int ret = 0; + int mem_type = arg->mem_type; + + if (!driver) { + DRM_ERROR("Buffer objects are not supported by this driver\n"); + return -EINVAL; + } + + if (mem_type >= DRM_BO_MEM_TYPES) { + DRM_ERROR("Illegal memory type %d\n", arg->mem_type); + return -EINVAL; + } + + mutex_lock(&dev->struct_mutex); + if (!bm->initialized) { + DRM_ERROR("DRM memory manager was not initialized\n"); + ret = -EINVAL; + goto out; + } + + + man = &bm->man[arg->mem_type]; + + arg->p_size = man->size; + +out: + mutex_unlock(&dev->struct_mutex); + + return ret; +} /* * buffer object vm functions. */ |