[PATCH 3.12 10/39] drm/i915: Fix SRC_COPY width on 830/845g

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From: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 611a7a4fd8b5fb6b25ab1f8bdcde61800a7feacf upstream.

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>
Tested-by: Thomas Richter <thor@xxxxxxxxxxxxxxxxx>
Acked-by: Daniel Vetter <daniel@xxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 4e51ce2bbb85..83780190cdd7 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1125,7 +1125,7 @@ i830_dispatch_execbuffer(struct intel_ring_buffer *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);
-- 
2.7.0

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