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09b1a4e4b5
linux/drivers/gpu
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Chris Wilson 09b1a4e4b5 drm/i915/lrc: Clear context restore/save inhibit flags for new contexts 
CTX_CONTEXT_CONTROL (CTX_SR_CTL) operates as a masked register and so
will only apply the bits that are selected by the upper half. In the
case of selectively enabling sr inhibit, this may mean the context keeps
the current setting (so forgetting to save the context later, eventually
leading to a very upset GPU!).

Fixes: 517aaffe0c ("drm/i915/execlists: Inhibit context save/restore for the fake preempt context")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180125112443.12745-1-chris@chris-wilson.co.uk
Reviewed-by: Michel Thierry <michel.thierry@intel.com>
2018-01-25 18:04:25 +00:00
..
drm drm/i915/lrc: Clear context restore/save inhibit flags for new contexts 2018-01-25 18:04:25 +00:00
host1x main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
ipu-v3 fixes/cleanups for rc1, non-desktop flags for VR 2017-11-23 21:04:56 -10:00
vga vgaarb: Factor out EFI and fallback default device selection 2017-10-18 10:04:56 +02:00
Makefile