From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Sat, 18 Mar 2017 10:28:59 +0000 (+0000)
Subject: drm/i915: Reset tasklet back to execlists after disabling guc
X-Git-Tag: v4.12-rc1~116^2~13^2~106
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c9203e82773a3cc965292bdf13eee422682fc018;p=karo-tx-linux.git

drm/i915: Reset tasklet back to execlists after disabling guc

When switching back to execlists, we also now need to restore the
tasklet handler.

Reported-by: Oscar Mateo <oscar.mateo@intel.com>
Fixes: 31de73501ac9 ("drm/i915/scheduler: emulate a scheduler for guc")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Oscar Mateo <oscar.mateo@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170318102859.24101-1-chris@chris-wilson.co.uk
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---

diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 77168e673e0a..dab73e7d9a6b 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -1575,6 +1575,7 @@ static void execlists_set_default_submission(struct intel_engine_cs *engine)
 {
 	engine->submit_request = execlists_submit_request;
 	engine->schedule = execlists_schedule;
+	engine->irq_tasklet.func = intel_lrc_irq_handler;
 }
 
 static void