Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4b584369 authored by Damien Lespiau's avatar Damien Lespiau Committed by Daniel Vetter
Browse files

drm/i915: Empty the circular buffer when asked for a new source 



So we don't read out stale CRCs from a previous run left in the buffer.

Signed-off-by: default avatarDamien Lespiau <damien.lespiau@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent ae676fcd

drivers/gpu/drm/i915/i915_debugfs.c

+6 −0
Original line number Original line Diff line number Diff line
@@ -1820,6 +1820,12 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe, 
	if (pipe_crc->source && source)

	if (pipe_crc->source && source)

		return -EINVAL;

		return -EINVAL;





	/* none -> real source transition */

	if (source) {

		atomic_set(&pipe_crc->head, 0);

		atomic_set(&pipe_crc->tail, 0);

	}



	pipe_crc->source = source;

	pipe_crc->source = source;





	switch (source) {

	switch (source) {