[Intel-gfx] [PATCH] drm/i915: Nuke debug messages from the pipe update critical section

[Maarten Lankhorst]

Op 07-03-17 om 21:54 schreef ville.syrjala at linux.intel.com:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> printks are slow so we should not be doing them from the vblank evade
> critical section. These could explain why we sometimes seem to
> blow past our 100 usec deadline.
>
> The problem has been there ever since commit bfd16b2a23dc ("drm/i915:
> Make updating pipe without modeset atomic.") but it may not have
> been readily visible until commit e1edbd44e23b ("drm/i915: Complain
> if we take too long under vblank evasion.") increased our chances
> of noticing it.
>
> Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> Fixes: bfd16b2a23dc ("drm/i915: Make updating pipe without modeset atomic.")
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

Reviewed-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>