Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 185c66e5 authored by Mika Kuoppala's avatar Mika Kuoppala Committed by Mika Kuoppala
Browse files

drm/i915/skl: Fix rc6 based gpu/system hang 



For all gt3 and gt4 skylake variants, extend the usage of
WaRsDisableCoarsePowerGating for all revisions. Without this
gt3 and gt4 skylakes up to atleast rev 0xa can gpu hang or
system hang.

Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Cc: Ben Widawsky <benjamin.widawsky@intel.com>
Cc: Timo Aaltonen <tjaalton@ubuntu.com>
Cc: <stable@vger.kernel.org>
Reported-by: default avatarMikael Djurfeldt <mikael@djurfeldt.com>
References: https://bugs.freedesktop.org/show_bug.cgi?id=94161


Signed-off-by: default avatarMika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: default avatarBen Widawsky <benjamin.widawsky@intel.com>
Tested-by: default avatarTimo Aaltonen <tjaalton@ubuntu.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1459860977-27751-1-git-send-email-mika.kuoppala@intel.com
parent 3f10e82f

drivers/gpu/drm/i915/i915_drv.h

+3 −2
Original line number Diff line number Diff line
@@ -2642,8 +2642,9 @@ struct drm_i915_cmd_table { 


/* WaRsDisableCoarsePowerGating:skl,bxt */

#define NEEDS_WaRsDisableCoarsePowerGating(dev) (IS_BXT_REVID(dev, 0, BXT_REVID_A1) || \

						 ((IS_SKL_GT3(dev) || IS_SKL_GT4(dev)) && \

						  IS_SKL_REVID(dev, 0, SKL_REVID_F0)))

						 IS_SKL_GT3(dev) || \

						 IS_SKL_GT4(dev))



/*

 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts

 * even when in MSI mode. This results in spurious interrupt warnings if the