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Patch "drm/amdgpu/gfx8: specify which engine to wait before vm flush" has been added to the 4.4-stable tree

PATCH [email protected] 1 participant 1 message Mar 5, 2016

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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 <[email protected]> know about it.

Quoted 1 line

From 9cac537332f5502c103415b25609548c276a09f8 Mon Sep 17 00:00:00 2001

From: Chunming Zhou <[email protected]>
Date: Mon, 29 Feb 2016 14:12:38 +0800
Subject: drm/amdgpu/gfx8: specify which engine to wait before vm flush
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

From: Chunming Zhou <[email protected]>

commit 9cac537332f5502c103415b25609548c276a09f8 upstream.

Select between me and pfp properly.

---
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +2 -1
@@ -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 [email protected] are

queue-4.4/drm-amdgpu-gfx8-specify-which-engine-to-wait-before-vm-flush.patch