openwrtv4/target/linux/brcm2708/patches-4.4/0099-drm-vc4-No-need-to-stop-the-stopped-threads.patch
John Crispin b3dc9566a4 brcm2708: switch to linux 4.4 and update patches
As usual these patches were extracted from:
https://github.com/raspberrypi/linux/commits/rpi-4.4.y

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

SVN-Revision: 48765
2016-02-25 10:14:01 +00:00

26 lines
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Diff

From 97a02955d447e975998b6e57febd7c304cac4ab1 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Fri, 23 Oct 2015 12:31:56 +0100
Subject: [PATCH 099/156] 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();