diff options
Diffstat (limited to 'linux-core/drm_gem.c')
| -rw-r--r-- | linux-core/drm_gem.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/linux-core/drm_gem.c b/linux-core/drm_gem.c index 6c462921..14cf7e47 100644 --- a/linux-core/drm_gem.c +++ b/linux-core/drm_gem.c @@ -266,6 +266,7 @@ drm_gem_pread_ioctl(struct drm_device *dev, void *data, struct drm_gem_object *obj; ssize_t read; loff_t offset; + int ret; if (!(dev->driver->driver_features & DRIVER_GEM)) return -ENODEV; @@ -274,6 +275,15 @@ drm_gem_pread_ioctl(struct drm_device *dev, void *data, if (obj == NULL) return -EINVAL; + if (dev->driver->gem_set_domain) { + ret = dev->driver->gem_set_domain (obj, + DRM_GEM_DOMAIN_CPU, + 0); + if (ret) { + drm_gem_object_unreference(obj); + return ret; + } + } offset = args->offset; read = vfs_read(obj->filp, (char __user *)(uintptr_t)args->data_ptr, @@ -343,6 +353,7 @@ drm_gem_pwrite_ioctl(struct drm_device *dev, void *data, struct drm_gem_object *obj; ssize_t written; loff_t offset; + int ret; if (!(dev->driver->driver_features & DRIVER_GEM)) return -ENODEV; @@ -351,11 +362,21 @@ drm_gem_pwrite_ioctl(struct drm_device *dev, void *data, if (obj == NULL) return -EINVAL; + if (dev->driver->gem_set_domain) { + ret = dev->driver->gem_set_domain (obj, + DRM_GEM_DOMAIN_CPU, + 0); + if (ret) { + drm_gem_object_unreference(obj); + return ret; + } + } offset = args->offset; written = vfs_write(obj->filp, (char __user *)(uintptr_t) args->data_ptr, args->size, &offset); + if (written != args->size) { drm_gem_object_unreference(obj); if (written < 0) @@ -364,6 +385,11 @@ drm_gem_pwrite_ioctl(struct drm_device *dev, void *data, return -EINVAL; } + if (dev->driver->gem_flush_pwrite) + dev->driver->gem_flush_pwrite(obj, + args->offset, + args->size); + drm_gem_object_unreference(obj); return 0; |