This is a note to let you know that I've just added the patch titled
drm/amdgpu/gfx8: specify which engine to wait before vm flush
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amdgpu-gfx8-specify-which-engine-to-wait-before-vm-flush.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 9cac537332f5502c103415b25609548c276a09f8 Mon Sep 17 00:00:00 2001
From: Chunming Zhou <David1.Zhou@xxxxxxx>
Date: Mon, 29 Feb 2016 14:12:38 +0800
Subject: drm/amdgpu/gfx8: specify which engine to wait before vm flush
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From: Chunming Zhou <David1.Zhou@xxxxxxx>
commit 9cac537332f5502c103415b25609548c276a09f8 upstream.
Select between me and pfp properly.
Signed-off-by: Chunming Zhou <David1.Zhou@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -4681,7 +4681,8 @@ static void gfx_v8_0_ring_emit_vm_flush(
amdgpu_ring_write(ring, PACKET3(PACKET3_WAIT_REG_MEM, 5));
amdgpu_ring_write(ring, (WAIT_REG_MEM_MEM_SPACE(1) | /* memory */
- WAIT_REG_MEM_FUNCTION(3))); /* equal */
+ WAIT_REG_MEM_FUNCTION(3) | /* equal */
+ WAIT_REG_MEM_ENGINE(usepfp))); /* pfp or me */
amdgpu_ring_write(ring, addr & 0xfffffffc);
amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
amdgpu_ring_write(ring, seq);
Patches currently in stable-queue which might be from David1.Zhou@xxxxxxx are
queue-4.4/drm-amdgpu-gfx8-specify-which-engine-to-wait-before-vm-flush.patch
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