target/linux/brcm2708/patches-4.4/0481-drm-vc4-Don-t-force-new-binner-overflow-allocation-p.patch

   1 From 033049599046df7c51b605b24224bbce6d60c762 Mon Sep 17 00:00:00 2001
   2 From: Eric Anholt <eric@anholt.net>
   3 Date: Tue, 2 Aug 2016 17:17:52 -0700
   4 Subject: [PATCH] drm/vc4: Don't force new binner overflow allocation per draw.
   5
   6 This came from the initial bringup code, which always idled the GPU
   7 and always reset the overflow.  That massively increases the size of
   8 the working set when you're doing lots of small draws, though, as is
   9 common on X desktops or piglit.
  10
  11 Signed-off-by: Eric Anholt <eric@anholt.net>
  12 ---
  13  drivers/gpu/drm/vc4/vc4_gem.c | 4 ----
  14  1 file changed, 4 deletions(-)
  15
  16 --- a/drivers/gpu/drm/vc4/vc4_gem.c
  17 +++ b/drivers/gpu/drm/vc4/vc4_gem.c
  18 @@ -435,10 +435,6 @@ again:
  19
  20         vc4_flush_caches(dev);
  21
  22 -       /* Disable the binner's pre-loaded overflow memory address */
  23 -       V3D_WRITE(V3D_BPOA, 0);
  24 -       V3D_WRITE(V3D_BPOS, 0);
  25 -
  26         /* Either put the job in the binner if it uses the binner, or
  27          * immediately move it to the to-be-rendered queue.
  28          */