The patch below does not apply to the 3.16-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 611a7a4fd8b5fb6b25ab1f8bdcde61800a7feacf Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Date: Fri, 12 Sep 2014 07:37:42 +0100
Subject: [PATCH] drm/i915: Fix SRC_COPY width on 830/845g
One small change I forgot to make in
commit c4d69da167fa967749aeb70bc0e94a457e5d00c1
Author: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Date: Mon Sep 8 14:25:41 2014 +0100
drm/i915: Evict CS TLBs between batches
was to update the copy width for the compact BLT copy instruction.
Reported-by: Thomas Richter <thor@xxxxxxxxxxxxxxxxx>
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Thomas Richter <thor@xxxxxxxxxxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Tested-by: Thomas Richter <thor@xxxxxxxxxxxxxxxxx>
Acked-by: Daniel Vetter <daniel@xxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 2d068edd1adc..47a126a0493f 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1400,7 +1400,7 @@ i830_dispatch_execbuffer(struct intel_engine_cs *ring,
*/
intel_ring_emit(ring, SRC_COPY_BLT_CMD | BLT_WRITE_RGBA);
intel_ring_emit(ring, BLT_DEPTH_32 | BLT_ROP_SRC_COPY | 4096);
- intel_ring_emit(ring, DIV_ROUND_UP(len, 4096) << 16 | 1024);
+ intel_ring_emit(ring, DIV_ROUND_UP(len, 4096) << 16 | 4096);
intel_ring_emit(ring, cs_offset);
intel_ring_emit(ring, 4096);
intel_ring_emit(ring, offset);
--
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