drm/i915: Stop sleeping from inside gen6_bsd_submit_request()
authorChris Wilson <chris@chris-wilson.co.uk>
Tue, 11 Apr 2017 10:13:37 +0000 (11:13 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Tue, 11 Apr 2017 11:44:02 +0000 (12:44 +0100)
commit02b312d05d1b51008e37f72f5a30c88e11c51ea5
tree60223710eaedd4ce9389e20a50594db9e0c9437b
parent84d84cb7e20d3d2c6413c5f75634e88eb68a3f97
drm/i915: Stop sleeping from inside gen6_bsd_submit_request()

submit_request() is called from an atomic context, it's not allowed to
sleep. We have to be careful in our parameters to
intel_uncore_wait_for_register() to limit ourselves to the atomic wait
loop and not incur the wrath of our warnings.

Fixes: 6976e74b5fa1 ("drm/i915: Don't allow overuse of __intel_wait_for_register_fw()")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170410143807.22725-1-chris@chris-wilson.co.uk
Link: http://patchwork.freedesktop.org/patch/msgid/20170411101340.31994-2-chris@chris-wilson.co.uk
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
drivers/gpu/drm/i915/intel_ringbuffer.c