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Filename Latest commit message Latest commit date
Ville Syrjälä 5e9cfeba6a drm/atomic-helper: Drop plane->fb references only for drm_atomic_helper_shutdown() 
drm_atomic_helper_shutdown() needs to release the reference held by
plane->fb. Since commit 49d70aeaec ("drm/atomic-helper: Fix leak in
disable_all") we're doing that by calling drm_atomic_clean_old_fb() in
drm_atomic_helper_disable_all(). This also leaves plane->fb == NULL
afterwards. However, since drm_atomic_helper_disable_all() is also
used by the i915 gpu reset code
drm_atomic_helper_commit_duplicated_state() then has to undo the
damage and put the correct plane->fb pointers back in (and also
adjust the ref counts to match again as well).

That approach doesn't work so well for load detection as nothing
sets up the plane->old_fb pointers for us. This causes us to
leak an extra reference for each plane->fb when
drm_atomic_helper_commit_duplicated_state() calls
drm_atomic_clean_old_fb() after load detection.

To fix this let's call drm_atomic_clean_old_fb() only for
drm_atomic_helper_shutdown() as that's the only time we need to
actually drop the plane->fb references. In all the other cases
(load detection, gpu reset) we want to leave plane->fb alone.

v2: Don't inflict the clean_old_fbs bool to drivers (Daniel)
v3: Squash in the revert and rewrite the commit msg (Daniel)

Cc: martin.peres@free.fr
Cc: chris@chris-wilson.co.uk
Cc: Dave Airlie <airlied@gmail.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180322152313.6561-3-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> #pre-squash
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-03-29 19:14:20 +03:00
arch x86: devicetree: fix config option around x86_flattree_get_config() 2018-03-04 00:28:55 -08:00
block
certs
crypto
Documentation Merge airlied/drm-next into drm-misc-next 2018-03-21 09:40:55 -04:00
drivers drm/atomic-helper: Drop plane->fb references only for drm_atomic_helper_shutdown() 2018-03-29 19:14:20 +03:00
firmware
fs
include drm: Use srcu to protect drm_device.unplugged 2018-03-29 13:19:20 +03:00
init
ipc
kernel
lib
LICENSES
mm
net
samples
scripts drm: Remove drm_property_{un/reference}_blob aliases 2018-03-22 09:21:53 -04:00
security
sound vga_switcheroo: Use device link for HDA controller 2018-03-13 22:58:09 +01:00
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usr
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MAINTAINERS dt-bindings: display: renesas: Add R-Car LVDS encoder DT bindings 2018-03-07 18:06:29 +02:00
Makefile
README

README 

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.