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

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