drm/i915: Move idle checks before intel_engine_init_global_seqno()
authorChris Wilson <chris@chris-wilson.co.uk>
Fri, 21 Jul 2017 12:32:26 +0000 (13:32 +0100)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 27 Jul 2017 07:38:46 +0000 (09:38 +0200)
commit4d53568cca96015d7ad44353dfd83c10ef14c6cf
tree33654adf6f7539b03a536d955d9ff0f3aa9e2f0c
parent5e32d7482ee20738d3474151f365b0a522fba463
drm/i915: Move idle checks before intel_engine_init_global_seqno()

intel_engine_init_globa_seqno() may be called from an uncontrolled
set-wedged path where we have given up waiting for broken hw and declare
it defunct. Along that path, any sanity checks that the hw is idle
before we adjust its state will expectedly fail, so we simply cannot.
Instead of asserting inside init_global_seqno, we move them to the
normal caller reset_all_global_seqno() as it handles runtime seqno
wraparound.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170721123238.16428-8-chris@chris-wilson.co.uk
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_gem_request.c
drivers/gpu/drm/i915/intel_engine_cs.c