target/linux/brcm2708/patches-4.4/0098-drm-vc4-No-need-to-stop-the-stopped-threads.patch

   1 From 8591fab92df5153be99548dbdd9b1fcb075a7924 Mon Sep 17 00:00:00 2001
   2 From: Eric Anholt <eric@anholt.net>
   3 Date: Fri, 23 Oct 2015 12:31:56 +0100
   4 Subject: [PATCH] drm/vc4: No need to stop the stopped threads.
   5
   6 This was leftover debug code from the hackdriver.  We never submit
   7 unless the thread is already idle.
   8
   9 Signed-off-by: Eric Anholt <eric@anholt.net>
  10 ---
  11  drivers/gpu/drm/vc4/vc4_gem.c | 4 ----
  12  1 file changed, 4 deletions(-)
  13
  14 --- a/drivers/gpu/drm/vc4/vc4_gem.c
  15 +++ b/drivers/gpu/drm/vc4/vc4_gem.c
  16 @@ -104,10 +104,6 @@ submit_cl(struct drm_device *dev, uint32
  17  {
  18         struct vc4_dev *vc4 = to_vc4_dev(dev);
  19
  20 -       /* Stop any existing thread and set state to "stopped at halt" */
  21 -       V3D_WRITE(V3D_CTNCS(thread), V3D_CTRUN);
  22 -       barrier();
  23 -
  24         V3D_WRITE(V3D_CTNCA(thread), start);
  25         barrier();
  26