Patch "drm/amdgpu: when suspending, if uvd/vce was running. need to cancel delay work." has been added to the 4.4-stable tree

[<gregkh@linuxfoundation.org>]

This is a note to let you know that I've just added the patch titled

    drm/amdgpu: when suspending, if uvd/vce was running. need to cancel delay work.

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-when-suspending-if-uvd-vce-was-running.-need-to-cancel-delay-work.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@vger.kernel.org> know about it.


>From 85cc88f02eb0ecf44493c1b2ebb6f206cd5fc321 Mon Sep 17 00:00:00 2001
From: Rex Zhu <Rex.Zhu@amd.com>
Date: Tue, 12 Apr 2016 19:25:52 +0800
Subject: drm/amdgpu: when suspending, if uvd/vce was running. need to cancel delay work.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

From: Rex Zhu <Rex.Zhu@amd.com>

commit 85cc88f02eb0ecf44493c1b2ebb6f206cd5fc321 upstream.

fix the issue that when resume back, uvd/vce
dpm was disabled and uvd/vce's performace
dropped.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c |    2 ++
 drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c |    1 +
 2 files changed, 3 insertions(+)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
@@ -273,6 +273,8 @@ int amdgpu_uvd_resume(struct amdgpu_devi
 	memcpy(adev->uvd.cpu_addr, (adev->uvd.fw->data) + offset,
 		(adev->uvd.fw->size) - offset);
 
+	cancel_delayed_work_sync(&adev->uvd.idle_work);
+
 	size = amdgpu_bo_size(adev->uvd.vcpu_bo);
 	size -= le32_to_cpu(hdr->ucode_size_bytes);
 	ptr = adev->uvd.cpu_addr;
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
@@ -220,6 +220,7 @@ int amdgpu_vce_suspend(struct amdgpu_dev
 	if (i == AMDGPU_MAX_VCE_HANDLES)
 		return 0;
 
+	cancel_delayed_work_sync(&adev->vce.idle_work);
 	/* TODO: suspending running encoding sessions isn't supported */
 	return -EINVAL;
 }


Patches currently in stable-queue which might be from Rex.Zhu@amd.com are

queue-4.4/drm-amdgpu-when-suspending-if-uvd-vce-was-running.-need-to-cancel-delay-work.patch