openwrt/target/linux/brcm2708/patches-4.4/0099-drm-vc4-No-need-to-stop-the-stopped-threads.patch
John Crispin cd2114e19c brcm2708: update linux 4.4 patches to latest version
As usual these patches were extracted from the raspberry pi repo:
https://github.com/raspberrypi/linux/tree/rpi-4.4.y

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

SVN-Revision: 48966
2016-03-08 18:11:49 +00:00

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Diff

From 8faa3b83201819d56f997a2b2ecaf8c690080852 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Fri, 23 Oct 2015 12:31:56 +0100
Subject: [PATCH 099/170] drm/vc4: No need to stop the stopped threads.
This was leftover debug code from the hackdriver. We never submit
unless the thread is already idle.
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
@@ -104,10 +104,6 @@ submit_cl(struct drm_device *dev, uint32
{
struct vc4_dev *vc4 = to_vc4_dev(dev);
- /* Stop any existing thread and set state to "stopped at halt" */
- V3D_WRITE(V3D_CTNCS(thread), V3D_CTRUN);
- barrier();
-
V3D_WRITE(V3D_CTNCA(thread), start);
barrier();