[PATCH 2/3] drm/file: Uncompact the feature flags
Daniel Vetter
daniel.vetter at ffwll.ch
Fri Nov 2 13:25:42 UTC 2018
This essentially undoes
commit 39868bd7668bd47308b1dfd97c212757caee764f
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date: Tue Oct 29 08:55:58 2013 +0000
drm: Compact booleans within struct drm_file
We do lockless access to these flags everywhere, and it's kinda not a
great idea to mix lockless and bitfields. Aside from that gcc isn't
generating great code for these.
If this ever becomes an issue size-wise, I think we need atomic_t here
and atomic bitflag ops.
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: David Herrmann <dh.herrmann at gmail.com>
Cc: Dave Airlie <airlied at redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
---
include/drm/drm_file.h | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/include/drm/drm_file.h b/include/drm/drm_file.h
index 26485acc51d7..84ac79219e4c 100644
--- a/include/drm/drm_file.h
+++ b/include/drm/drm_file.h
@@ -164,14 +164,14 @@ struct drm_file {
* See also the :ref:`section on primary nodes and authentication
* <drm_primary_node>`.
*/
- unsigned authenticated :1;
+ bool authenticated;
/**
* @stereo_allowed:
*
* True when the client has asked us to expose stereo 3D mode flags.
*/
- unsigned stereo_allowed :1;
+ bool stereo_allowed;
/**
* @universal_planes:
@@ -179,10 +179,10 @@ struct drm_file {
* True if client understands CRTC primary planes and cursor planes
* in the plane list. Automatically set when @atomic is set.
*/
- unsigned universal_planes:1;
+ bool universal_planes;
/** @atomic: True if client understands atomic properties. */
- unsigned atomic:1;
+ bool atomic;
/**
* @aspect_ratio_allowed:
@@ -190,14 +190,14 @@ struct drm_file {
* True, if client can handle picture aspect ratios, and has requested
* to pass this information along with the mode.
*/
- unsigned aspect_ratio_allowed:1;
+ bool aspect_ratio_allowed;
/**
* @writeback_connectors:
*
* True if client understands writeback connectors
*/
- unsigned writeback_connectors:1;
+ bool writeback_connectors;
/**
* @is_master:
@@ -208,7 +208,7 @@ struct drm_file {
* See also the :ref:`section on primary nodes and authentication
* <drm_primary_node>`.
*/
- unsigned is_master:1;
+ bool is_master;
/**
* @master:
--
2.14.4
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