Re: FAILED: patch "[PATCH] drm/amdgpu: fix gfx hang during suspend with video playback" failed to apply to 5.6-stable tree

[Sasha Levin <sashal@kernel.org>]

On Wed, Apr 15, 2020 at 01:34:28PM +0200, gregkh@linuxfoundation.org wrote:
>
>The patch below does not apply to the 5.6-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@vger.kernel.org>.
>
>thanks,
>
>greg k-h
>
>------------------ original commit in Linus's tree ------------------
>
>From 487eca11a321ef33bcf4ca5adb3c0c4954db1b58 Mon Sep 17 00:00:00 2001
>From: Prike Liang <Prike.Liang@amd.com>
>Date: Tue, 7 Apr 2020 20:21:26 +0800
>Subject: [PATCH] drm/amdgpu: fix gfx hang during suspend with video playback
> (v2)
>
>The system will be hang up during S3 suspend because of SMU is pending
>for GC not respose the register CP_HQD_ACTIVE access request.This issue
>root cause of accessing the GC register under enter GFX CGGPG and can
>be fixed by disable GFX CGPG before perform suspend.
>
>v2: Use disable the GFX CGPG instead of RLC safe mode guard.
>
>Signed-off-by: Prike Liang <Prike.Liang@amd.com>
>Tested-by: Mengbing Wang <Mengbing.Wang@amd.com>
>Reviewed-by: Huang Rui <ray.huang@amd.com>
>Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
>Cc: stable@vger.kernel.org

Conflict because of missing 9593f4d6a69b ("drm/amdkfd: refactor runtime
pm for baco"). Fixed and queued up.

-- 
Thanks,
Sasha