On Fri, Mar 14, 2014 at 04:43:16PM +0200, Jani Nikula wrote: > On Fri, 14 Mar 2014, Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> wrote: > > We used to have per file descriptor hang stats for the > > i915_get_reset_stats_ioctl() and for default context banning. > > > > commit 0eea67eb26000657079b7fc41079097942339452 > > Author: Ben Widawsky <ben@xxxxxxxxxxxx> > > Date: Fri Dec 6 14:11:19 2013 -0800 > > > > drm/i915: Create a per file_priv default context > > > > made having separate hangstats in file_private redundant > > as i915_hw_context already contained hangstats. So > > > > commit c482972a086e03e6a6d27e4f7af2d868bf659648 > > Author: Ben Widawsky <benjamin.widawsky@xxxxxxxxx> > > Date: Fri Dec 6 14:11:20 2013 -0800 > > > > drm/i915: Piggy back hangstats off of contexts > > > > consolidated the hangstats and enabled further improvements. > > > > commit 44e2c0705a19e09d7b0f30a591f92e473e5ef89e > > Author: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> > > Date: Thu Jan 30 16:01:15 2014 +0200 > > > > drm/i915: Use i915_hw_context to set reset stats > > > > tried to reap full benefits of consolidation but fell short > > as we never 'switch' to the fake private context on gens > > that don't have hw_contexts, so request->ctx remained NULL > > on those. > > > > Fix this by 'switching' to fake context so that when > > request is submitted to ring, proper context gets assigned > > to it. > > > > References: https://bugs.freedesktop.org/show_bug.cgi?id=76055 > > I'd say this still applies: > > Tested-by: Lu Hua <huax.lu@xxxxxxxxx> Also if your patch intends to fix a bug, please use a Bugzilla: reference, I tend to use References only when there's an issue seen in a report, but it's not the main issue. -Daniel > > > Signed-off-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx> > > --- > > drivers/gpu/drm/i915/i915_gem_context.c | 6 ++++-- > > 1 file changed, 4 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c > > index ce41cff..b5a5837 100644 > > --- a/drivers/gpu/drm/i915/i915_gem_context.c > > +++ b/drivers/gpu/drm/i915/i915_gem_context.c > > @@ -775,9 +775,11 @@ int i915_switch_context(struct intel_ring_buffer *ring, > > > > BUG_ON(file && to == NULL); > > > > - /* We have the fake context, but don't supports switching. */ > > - if (!HAS_HW_CONTEXTS(ring->dev)) > > + /* We have the fake context */ > > + if (!HAS_HW_CONTEXTS(ring->dev)) { > > + ring->last_context = to; > > return 0; > > + } > > > > return do_switch(ring, to); > > } > > -- > > 1.7.9.5 > > > > _______________________________________________ > > Intel-gfx mailing list > > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > > http://lists.freedesktop.org/mailman/listinfo/intel-gfx > > -- > Jani Nikula, Intel Open Source Technology Center > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
