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Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0099-drm-vc4-No-need-to-stop-the-stopped-threads.patch')
-rw-r--r--target/linux/brcm2708/patches-4.4/0099-drm-vc4-No-need-to-stop-the-stopped-threads.patch26
1 files changed, 26 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0099-drm-vc4-No-need-to-stop-the-stopped-threads.patch b/target/linux/brcm2708/patches-4.4/0099-drm-vc4-No-need-to-stop-the-stopped-threads.patch
new file mode 100644
index 0000000000..d4d8c0705f
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0099-drm-vc4-No-need-to-stop-the-stopped-threads.patch
@@ -0,0 +1,26 @@
+From 7fdb9332f996fbaa26eaa805ce72a6afa590a302 Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Fri, 23 Oct 2015 12:31:56 +0100
+Subject: [PATCH 099/127] 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();
+