From: Chris Wilson Date: Thu, 17 May 2018 11:56:47 +0000 (+0100) Subject: drm/i915/execlists: HWACK checking superseded checking port[0].count X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=57877b70739a5d49d95bedf94218ba125e8afef3;p=openwrt%2Fstaging%2Fblogic.git drm/i915/execlists: HWACK checking superseded checking port[0].count The HWACK bit more generically solves the problem of resubmitting ESLP while the hardware is still processing the current ELSP write. We no longer need to check port[0].count itself. References: ba74cb10c775 ("drm/i915/execlists: Delay writing to ELSP until HW has processed the previous write") Signed-off-by: Chris Wilson Cc: Michel Thierry Reviewed-by: Tvrtko Ursulin Link: https://patchwork.freedesktop.org/patch/msgid/20180517115647.17205-1-chris@chris-wilson.co.uk --- diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 493e6bd9e28a..ae5adad7cc63 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -612,8 +612,6 @@ static bool __execlists_dequeue(struct intel_engine_cs *engine) GEM_BUG_ON(!execlists_is_active(execlists, EXECLISTS_ACTIVE_USER)); GEM_BUG_ON(!port_count(&port[0])); - if (port_count(&port[0]) > 1) - return false; /* * If we write to ELSP a second time before the HW has had