/* * This header provides constants for most thermal bindings. * * Copyright (C) 2013 Texas Instruments * Eduardo Valentin * * GPLv2 only */ #ifndef _DT_BINDINGS_THERMAL_THERMAL_H #define _DT_BINDINGS_THERMAL_THERMAL_H /* On cooling devices upper and lower limits */ #define THERMAL_NO_LIMIT (~0) #endif -git' href='git://git.distanz.ch/linux/net-next.git' title='net-next.git Git repository'/>
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authorPaulo Zanoni <paulo.r.zanoni@intel.com>2016-04-04 18:17:15 -0300
committerPaulo Zanoni <paulo.r.zanoni@intel.com>2016-06-20 17:47:26 -0300
commitab28a5474a497d201091ba20ca9c33260bb2b2af (patch)
treecf23468272c8b157e792a2c6279f69d5b4f5733d
parentc7f7e2feffb0294302041507dfd5fc15f01afccc (diff)
drm/i915/fbc: update busy_bits even for GTT and flip flushes
We ignore ORIGIN_GTT because the hardware tracking can recognize GTT writes and take care of them. We also ignore ORIGIN_FLIP because we deal with flips without relying on the frontbuffer tracking infrastructure. On the other hand, a flush is a flush and means we're good to go, so we need to update busy_bits in order to reflect that, even if we're not going to do anything else about it. How to reproduce the bug fixed by this patch: - boot SKL up to the desktop environment - stop the display manager - run any of the igt/kms_frontbuffer_tracking/*fbc*onoff* subtests - the tests will fail The steps above will create the right conditions for us to lose track of busy_bits. If you, for example, run the full set of FBC tests, the onoff subtests will succeed. Also notice that the "bug" is that we'll just keep FBC disabled on cases where it could be enabled, so it's not something the users can perceive, it just affects power consumption numbers on properly configured machines. Testcase: igt/kms_frontbuffer_tracking/*fbc*onoff* (see above) Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459804638-3588-2-git-send-email-paulo.r.zanoni@intel.com
Diffstat
-rw-r--r--drivers/gpu/drm/i915/intel_fbc.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c