From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:45468 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751399AbdFEMtA (ORCPT ); Mon, 5 Jun 2017 08:49:00 -0400 Subject: Patch "drm/amd/powerplay/smu7: disable mclk switching for high refresh rates" has been added to the 4.9-stable tree To: alexander.deucher@amd.com, christian.koenig@amd.com, gregkh@linuxfoundation.org Cc: , From: Date: Mon, 05 Jun 2017 14:48:43 +0200 Message-ID: <14966669237234@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled drm/amd/powerplay/smu7: disable mclk switching for high refresh rates to the 4.9-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-amd-powerplay-smu7-disable-mclk-switching-for-high-refresh-rates.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 2275a3a2fe9914ba6d76c8ea490da3c08342bd19 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 11 May 2017 13:57:41 -0400 Subject: drm/amd/powerplay/smu7: disable mclk switching for high refresh rates MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Alex Deucher commit 2275a3a2fe9914ba6d76c8ea490da3c08342bd19 upstream. Even if the vblank period would allow it, it still seems to be problematic on some cards. bug: https://bugs.freedesktop.org/show_bug.cgi?id=96868 Acked-by: Christian König Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c @@ -2633,7 +2633,8 @@ static int smu7_apply_state_adjust_rules disable_mclk_switching = ((1 < info.display_count) || disable_mclk_switching_for_frame_lock || - smu7_vblank_too_short(hwmgr, mode_info.vblank_time_us)); + smu7_vblank_too_short(hwmgr, mode_info.vblank_time_us) || + (mode_info.refresh_rate > 120)); sclk = smu7_ps->performance_levels[0].engine_clock; mclk = smu7_ps->performance_levels[0].memory_clock; Patches currently in stable-queue which might be from alexander.deucher@amd.com are queue-4.9/drm-amd-powerplay-smu7-add-vblank-check-for-mclk-switching-v2.patch queue-4.9/drm-radeon-fix-vram_size-visible-values-in-drm_radeon_gem_info-ioctl.patch queue-4.9/drm-radeon-ci-disable-mclk-switching-for-high-refresh-rates-v2.patch queue-4.9/drm-radeon-unbreak-hpd-handling-for-r600.patch queue-4.9/drm-amd-powerplay-smu7-disable-mclk-switching-for-high-refresh-rates.patch