drm/i915: Fix serialisation of pipecontrol write vs semaphore signal

In order for the MI_SEMAPHORE_SIGNAL command to wait until after the pipecontrol writing the signal value is complete, we have to pause the CS inside the PIPE_CONTROL with the CS_STALL bit. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1461932305-14637-4-git-send-email-chris@chris-wilson.co.uk
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
Age	Commit message (Expand)	Author	Files	Lines
2017-09-13	link: use uint32_t instead of u32	Tobias Klauser	1	-2/+2
2013-12-18	debian: define SPEED_UNKNOWN if missing in linux/ethtool.h	Jesper Dangaard Brouer	1	-0/+4
2013-06-04	link: add link management functions	Daniel Borkmann	1	-0/+18