From patchwork Wed Feb 23 11:40:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marijn Suijten X-Patchwork-Id: 12756806 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A215BC433EF for ; Wed, 23 Feb 2022 11:40:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240045AbiBWLkp (ORCPT ); Wed, 23 Feb 2022 06:40:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36424 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240041AbiBWLkp (ORCPT ); Wed, 23 Feb 2022 06:40:45 -0500 Received: from relay08.th.seeweb.it (relay08.th.seeweb.it [IPv6:2001:4b7a:2000:18::169]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4289895A13; Wed, 23 Feb 2022 03:40:16 -0800 (PST) Received: from Marijn-Arch-PC.localdomain (94-209-165-62.cable.dynamic.v4.ziggo.nl [94.209.165.62]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by m-r2.th.seeweb.it (Postfix) with ESMTPSA id 8C2B33F78B; Wed, 23 Feb 2022 12:40:12 +0100 (CET) From: Marijn Suijten To: phone-devel@vger.kernel.org Cc: ~postmarketos/upstreaming@lists.sr.ht, AngeloGioacchino Del Regno , Konrad Dybcio , Martin Botka , Jami Kettunen , Pavel Dubrova , Marijn Suijten , Rob Clark , Sean Paul , Abhinav Kumar , David Airlie , Daniel Vetter , Dmitry Baryshkov , Bernard , Zhen Lei , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] drm/msm/dpu: Bind pingpong block to intf on active ctls in cmd encoder Date: Wed, 23 Feb 2022 12:40:10 +0100 Message-Id: <20220223114011.219044-1-marijn.suijten@somainline.org> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org As per the specification of DPU_CTL_ACTIVE_CFG the configuration of active blocks should be proactively specified, and the pingpong block is no different. The downstream display driver [1] confirms this by also calling bind_pingpong_blk on CTL_ACTIVE_CFG. Note that this else-if is always entered, as setup_intf_cfg - unlike this mainline dpu driver that combines both behind the same function pointer - is left NULL in favour of using setup_intf_cfg_v1 when CTL_ACTIVE_CFG is set. This solves continuous timeouts on at least the Qualcomm sm6125 SoC: [drm:dpu_encoder_frame_done_timeout:2091] [dpu error]enc31 frame done timeout [drm:_dpu_encoder_phys_cmd_handle_ppdone_timeout.isra.0] *ERROR* id:31 pp:0 kickoff timeout 0 cnt 1 koff_cnt 1 [drm:dpu_encoder_phys_cmd_prepare_for_kickoff] *ERROR* failed wait_for_idle: id:31 ret:-110 pp:0 In the same way this pingpong block should also be unbound followed by an interface flush when the encoder is disabled, according to the downstream display driver [2]. [1]: https://source.codeaurora.org/quic/la/platform/vendor/opensource/display-drivers/tree/msm/sde/sde_encoder_phys_cmd.c?h=LA.UM.9.16.r1-08500-MANNAR.0#n167 [2]: https://source.codeaurora.org/quic/la/platform/vendor/opensource/display-drivers/tree/msm/sde/sde_encoder.c?h=LA.UM.9.16.r1-08500-MANNAR.0#n2986 Signed-off-by: Marijn Suijten Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Dmitry Baryshkov --- Changes since v1: - Always unbind the pingpong block in dpu_encoder_phys_cmd_disable, instead of only if this encoder is the master. v1: https://lore.kernel.org/lkml/20211222105513.44860-1-marijn.suijten@somainline.org/ .../drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) base-commit: 3c30cf91b5ecc7272b3d2942ae0505dd8320b81c diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c index 8e433af7aea4..1be01cbd960e 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c @@ -71,6 +71,13 @@ static void _dpu_encoder_phys_cmd_update_intf_cfg( intf_cfg.stream_sel = cmd_enc->stream_sel; intf_cfg.mode_3d = dpu_encoder_helper_get_3d_blend_mode(phys_enc); ctl->ops.setup_intf_cfg(ctl, &intf_cfg); + + /* setup which pp blk will connect to this intf */ + if (test_bit(DPU_CTL_ACTIVE_CFG, &ctl->caps->features) && phys_enc->hw_intf->ops.bind_pingpong_blk) + phys_enc->hw_intf->ops.bind_pingpong_blk( + phys_enc->hw_intf, + true, + phys_enc->hw_pp->idx); } static void dpu_encoder_phys_cmd_pp_tx_done_irq(void *arg, int irq_idx) @@ -507,6 +514,7 @@ static void dpu_encoder_phys_cmd_disable(struct dpu_encoder_phys *phys_enc) { struct dpu_encoder_phys_cmd *cmd_enc = to_dpu_encoder_phys_cmd(phys_enc); + struct dpu_hw_ctl *ctl; if (!phys_enc->hw_pp) { DPU_ERROR("invalid encoder\n"); @@ -523,6 +531,17 @@ static void dpu_encoder_phys_cmd_disable(struct dpu_encoder_phys *phys_enc) if (phys_enc->hw_pp->ops.enable_tearcheck) phys_enc->hw_pp->ops.enable_tearcheck(phys_enc->hw_pp, false); + + if (phys_enc->hw_intf->ops.bind_pingpong_blk) { + phys_enc->hw_intf->ops.bind_pingpong_blk( + phys_enc->hw_intf, + false, + phys_enc->hw_pp->idx); + + ctl = phys_enc->hw_ctl; + ctl->ops.update_pending_flush_intf(ctl, phys_enc->intf_idx); + } + phys_enc->enable_state = DPU_ENC_DISABLED; }