Op 04-12-15 om 09:12 schreef Daniel Vetter: > On Thu, Dec 03, 2015 at 12:01:02PM +0100, Maarten Lankhorst wrote: >> Op 03-12-15 om 10:53 schreef Daniel Vetter: >>> On Tue, Nov 24, 2015 at 10:34:36AM +0100, Maarten Lankhorst wrote: >>>> This allows iteration over encoders without requiring connection_mutex. >>>> >>>> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx> >>>> --- >>>> drivers/gpu/drm/drm_atomic_helper.c | 4 ++++ >>>> drivers/gpu/drm/i915/intel_display.c | 3 +++ >>>> include/drm/drm_crtc.h | 2 ++ >>>> 3 files changed, 9 insertions(+) >>>> >>>> diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c >>>> index fb79c54b2aed..f3fd8f131f92 100644 >>>> --- a/drivers/gpu/drm/drm_atomic_helper.c >>>> +++ b/drivers/gpu/drm/drm_atomic_helper.c >>>> @@ -269,6 +269,8 @@ mode_fixup(struct drm_atomic_state *state) >>>> continue; >>>> >>>> drm_mode_copy(&crtc_state->adjusted_mode, &crtc_state->mode); >>>> + >>>> + crtc_state->encoder_mask = 0; >>> Hm, I think a small function to set the best_encoder (like we do to set >>> the crtc for connector or planes) would be good. Otherwise we'll frob >>> around the code and forget this, and much confusion will ensue. >>> >>> That helper should probably be in core drm_atomic.c, like the other >>> set_foo_for_bar helpers. >> As always only i915 assigns best_encoder outside drm_atomic_helper_check_modeset, and the i915 calls can't be fixed because of hw readout. :( >> At the time of mode_fixup all encoders should have been updated, so I'm not sure adding a helper for best_encoder would help much.. > I've meant just for the atomic helpers. i915 is a mess, yes, but that's > not really an excuse to not make shared code pretty ;-) > It's not really possible to do it in a helper. The encoder might be moved with the connector, or have a fixed mapping depending on crtc. (i915 MST) So unfortunately there can be no generic helper, but it has to be dealt with in this function, when assigning best_encoder per crtc. ~Maarten _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
