From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7518914A624 for ; Sun, 8 Sep 2024 12:37:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725799026; cv=none; b=dDsxZMXUeUr6Zjea1mSFWVJsW67NAjeF1sPkPfJtgrYWHdive1YfbA+/A/hM1aCKT/3/v/g7paqTOvjhjmaEbQwE0RDM7gvO76gZc5UZ4Mjls25cJQAaURYo/qZNwo2XUYsxA6uEbh+EJqQRk+Vr2TqrphaOaSXaxI+ykwuF3uI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725799026; c=relaxed/simple; bh=W0GXNjExiuS2dPX0wMJYjvVtfUzmwmBxs62tUpJ1slY=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=XSltLdx26/yg2q+Hi2LZ8T7m7eo7wY7ibG5r/LgvN7XB2NViuX940s1xtLNvy1jMaobu222tw3FZlEA93Qwyrix00SpzsY2bz8I+xQsIegAYGEDp6wlFuUbRHR3vH6D7UUpdK0WwBNi7oRcpVA+zlo/fcEC8lg56AGnfE1aEATY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=K3rAqRUo; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="K3rAqRUo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A0FA6C4CEC3; Sun, 8 Sep 2024 12:37:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1725799026; bh=W0GXNjExiuS2dPX0wMJYjvVtfUzmwmBxs62tUpJ1slY=; h=Subject:To:Cc:From:Date:From; b=K3rAqRUovuXT/LrQG5D7+HpwfU5GmwN32vBBfz4o4ZhoFMfM/vZNnXQxQxvnWiKOx yvlLNIAef9Py9fi/OTPJLlem41/5D2jmKKuN7ui9Rpw40wegY4ddzBv9eL55nJRn9x IGM5VGe8LAQRLkSNt6gFfkw0iN3Dscsf7PsTQbJQ= Subject: FAILED: patch "[PATCH] drm/amd/display: Determine IPS mode by ASIC and PMFW versions" failed to apply to 6.10-stable tree To: sunpeng.li@amd.com,alexander.deucher@amd.com,harry.wentland@amd.com Cc: From: Date: Sun, 08 Sep 2024 14:37:03 +0200 Message-ID: <2024090802-spill-spooky-94c0@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.10-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 . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.10.y git checkout FETCH_HEAD git cherry-pick -x 65444581a4aecf0e96b4691bb20fc75c602f5863 # git commit -s git send-email --to '' --in-reply-to '2024090802-spill-spooky-94c0@gregkh' --subject-prefix 'PATCH 6.10.y' HEAD^.. Possible dependencies: 65444581a4ae ("drm/amd/display: Determine IPS mode by ASIC and PMFW versions") 234e94555800 ("drm/amd/display: Enable copying of bounding box data from VBIOS DMUB") afca033f10d3 ("drm/amd/display: Add periodic detection for IPS") 05c5ffaac770 ("drm/amd/display: gpuvm handling in DML21") 9ba971b25316 ("drm/amd/display: Re-enable IPS2 for static screen") 70839da63605 ("drm/amd/display: Add new DCN401 sources") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 65444581a4aecf0e96b4691bb20fc75c602f5863 Mon Sep 17 00:00:00 2001 From: Leo Li Date: Tue, 27 Aug 2024 11:29:53 -0400 Subject: [PATCH] drm/amd/display: Determine IPS mode by ASIC and PMFW versions [Why] DCN IPS interoperates with other system idle power features, such as Zstates. On DCN35, there is a known issue where system Z8 + DCN IPS2 causes a hard hang. We observe this on systems where the SBIOS allows Z8. Though there is a SBIOS fix, there's no guarantee that users will get it any time soon, or even install it. A workaround is needed to prevent this from rearing its head in the wild. [How] For DCN35, check the pmfw version to determine whether the SBIOS has the fix. If not, set IPS1+RCG as the deepest possible state in all cases except for s0ix and display off (DPMS). Otherwise, enable all IPS Signed-off-by: Leo Li Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher (cherry picked from commit 28d43d0895896f84c038d906d244e0a95eb243ec) Cc: stable@vger.kernel.org diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 983a977632ff..e6cea5b9bdb3 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1752,6 +1752,30 @@ static struct dml2_soc_bb *dm_dmub_get_vbios_bounding_box(struct amdgpu_device * return bb; } +static enum dmub_ips_disable_type dm_get_default_ips_mode( + struct amdgpu_device *adev) +{ + /* + * On DCN35 systems with Z8 enabled, it's possible for IPS2 + Z8 to + * cause a hard hang. A fix exists for newer PMFW. + * + * As a workaround, for non-fixed PMFW, force IPS1+RCG as the deepest + * IPS state in all cases, except for s0ix and all displays off (DPMS), + * where IPS2 is allowed. + * + * When checking pmfw version, use the major and minor only. + */ + if (amdgpu_ip_version(adev, DCE_HWIP, 0) == IP_VERSION(3, 5, 0) && + (adev->pm.fw_version & 0x00FFFF00) < 0x005D6300) + return DMUB_IPS_RCG_IN_ACTIVE_IPS2_IN_OFF; + + if (amdgpu_ip_version(adev, DCE_HWIP, 0) >= IP_VERSION(3, 5, 0)) + return DMUB_IPS_ENABLE; + + /* ASICs older than DCN35 do not have IPSs */ + return DMUB_IPS_DISABLE_ALL; +} + static int amdgpu_dm_init(struct amdgpu_device *adev) { struct dc_init_data init_data; @@ -1863,7 +1887,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) if (amdgpu_dc_debug_mask & DC_DISABLE_IPS) init_data.flags.disable_ips = DMUB_IPS_DISABLE_ALL; else - init_data.flags.disable_ips = DMUB_IPS_ENABLE; + init_data.flags.disable_ips = dm_get_default_ips_mode(adev); init_data.flags.disable_ips_in_vpb = 0;