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Filename Latest commit message Latest commit date
Dhinakaran Pandiyan 68036b08b9 drm/vblank: Do not update vblank count if interrupts are already disabled.
Updating vblank counts requires register reads and these reads may not
return meaningful values if the device was in a low power state after
vblank interrupts were last disabled. So, update the count only if vblank
interrupts are enabled. Secondly, this means the registers should be read
before disabling vblank interrupts.

v2: Don't check vblank->enabled outside it's lock (Chris)

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180203051302.9974-8-dhinakaran.pandiyan@intel.com
2018-02-15 11:50:04 -08:00
arch Linux 4.15-rc8 2018-01-18 09:32:15 +10:00
block
certs
crypto
Documentation Linux 4.15-rc8 2018-01-18 09:32:15 +10:00
drivers drm/vblank: Do not update vblank count if interrupts are already disabled. 2018-02-15 11:50:04 -08:00
firmware
fs
include drm/atomic: Handle 64-bit return from drm_crtc_vblank_count() 2018-02-15 11:49:57 -08:00
init
ipc
kernel
lib
mm
net
samples
scripts
security Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-01-14 09:51:25 -08:00
sound
tools Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-01-14 09:51:25 -08:00
usr
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.cocciconfig
.get_maintainer.ignore
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COPYING
CREDITS
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MAINTAINERS Linux 4.15-rc8 2018-01-18 09:32:15 +10:00
Makefile Linux 4.15-rc8 2018-01-14 15:32:30 -08:00
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.