From 0be8d63a840ab7cacb08f1af1f2395be0fe3b698 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Noralf=20Tr=C3=B8nnes?= Date: Sun, 23 Jul 2017 21:16:18 +0200 Subject: [PATCH] drm/dumb-buffers: Add defaults for .dumb_map_offset and .dumb_destroy MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Almost everyone did end up using GEM as bo, so this adds defaults for the drm_driver.dumb_destroy and drm_driver.dumb_map_offset callbacks. Signed-off-by: Noralf Trønnes Reviewed-by: Eric Anholt Reviewed-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/1500837417-40580-3-git-send-email-noralf@tronnes.org --- drivers/gpu/drm/drm_dumb_buffers.c | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/drm_dumb_buffers.c b/drivers/gpu/drm/drm_dumb_buffers.c index 10307cc16d75..39ac15ce4702 100644 --- a/drivers/gpu/drm/drm_dumb_buffers.c +++ b/drivers/gpu/drm/drm_dumb_buffers.c @@ -24,6 +24,7 @@ */ #include +#include #include "drm_crtc_internal.h" @@ -42,9 +43,10 @@ * create dumb buffers suitable for scanout, which can then be used to create * KMS frame buffers. * - * To support dumb objects drivers must implement the &drm_driver.dumb_create, - * &drm_driver.dumb_destroy and &drm_driver.dumb_map_offset operations. See - * there for further details. + * To support dumb objects drivers must implement the &drm_driver.dumb_create + * operation. &drm_driver.dumb_destroy defaults to drm_gem_dumb_destroy() if + * not set and &drm_driver.dumb_map_offset defaults to + * drm_gem_dumb_map_offset(). See the callbacks for further details. * * Note that dumb objects may not be used for gpu acceleration, as has been * attempted on some ARM embedded platforms. Such drivers really must have @@ -108,11 +110,16 @@ int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, { struct drm_mode_map_dumb *args = data; - /* call driver ioctl to get mmap offset */ - if (!dev->driver->dumb_map_offset) + if (!dev->driver->dumb_create) return -ENOSYS; - return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); + if (dev->driver->dumb_map_offset) + return dev->driver->dumb_map_offset(file_priv, dev, + args->handle, + &args->offset); + else + return drm_gem_dumb_map_offset(file_priv, dev, args->handle, + &args->offset); } int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, @@ -120,9 +127,12 @@ int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, { struct drm_mode_destroy_dumb *args = data; - if (!dev->driver->dumb_destroy) + if (!dev->driver->dumb_create) return -ENOSYS; - return dev->driver->dumb_destroy(file_priv, dev, args->handle); + if (dev->driver->dumb_destroy) + return dev->driver->dumb_destroy(file_priv, dev, args->handle); + else + return drm_gem_dumb_destroy(file_priv, dev, args->handle); } -- 2.39.5