From: Chris Wilson Date: Thu, 30 Mar 2017 14:50:40 +0000 (+0100) Subject: drm/i915: Remove redudant wait for each engine to idle from seqno wrap X-Git-Tag: v4.12-rc1~116^2~13^2~5 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=7a453fb82f869ea919aefb4943c7d24194c98698;p=linux.git drm/i915: Remove redudant wait for each engine to idle from seqno wrap Having added the wait upon each engine to idle into the central i915_gem_wait_for_idle(), we can remove the now redundant wait from reset_all_global_seqno(). This has the advantage of removing the late detection of an error (an engine still busy) which left the seqno reset only partially complete (though it should be safe enough!). Signed-off-by: Chris Wilson Link: http://patchwork.freedesktop.org/patch/msgid/20170330145041.9005-5-chris@chris-wilson.co.uk Reviewed-by: Joonas Lahtinen --- diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c index f16900848650..1bfc3e664470 100644 --- a/drivers/gpu/drm/i915/i915_gem_request.c +++ b/drivers/gpu/drm/i915/i915_gem_request.c @@ -207,9 +207,6 @@ static int reset_all_global_seqno(struct drm_i915_private *i915, u32 seqno) for_each_engine(engine, i915, id) { struct intel_timeline *tl = &timeline->engine[id]; - if (wait_for(intel_engine_is_idle(engine), 50)) - return -EBUSY; - if (!i915_seqno_passed(seqno, tl->seqno)) { /* spin until threads are complete */ while (intel_breadcrumbs_busy(engine))