From patchwork Sun May 26 14:44:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jason-JH.Lin" X-Patchwork-Id: 13674283 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 24225C25B75 for ; Sun, 26 May 2024 14:45:30 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 104A310EE79; Sun, 26 May 2024 14:45:29 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=mediatek.com header.i=@mediatek.com header.b="rzbDQHoq"; dkim-atps=neutral Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by gabe.freedesktop.org (Postfix) with ESMTPS id 584FB10ECE1 for ; Sun, 26 May 2024 14:44:52 +0000 (UTC) X-UUID: 7eca82821b6e11efbfff99f2466cf0b4-20240526 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=KxN0Cn2UnxKhpBITEVR5MpMye8qsppNfTxaYmd0XbS0=; b=rzbDQHoqIvdehwom7Le194PuqOZ73zixMk6Q5K2zgcVX669qdWLJ6zDBpSyaQcszd3eR223+dlkVtbtYgrUtr2h936tDbv/v9+LvGfblFuBTPbp2Hfxiiaz4VxWEo1/wQFAn31AHpc9qMivQ7nJEIje/zGXZMYtV9NShj075h/Y=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.38, REQID:369f1146-9369-4b0e-86e7-1e7b659ce345, IP:0, U RL:0,TC:0,Content:56,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:56 X-CID-META: VersionHash:82c5f88, CLOUDID:d6a85384-4f93-4875-95e7-8c66ea833d57, B ulkID:nil,BulkQuantity:0,Recheck:0,SF:801|102,TC:nil,Content:3,EDM:-3,IP:n il,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LE S:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: 7eca82821b6e11efbfff99f2466cf0b4-20240526 Received: from mtkmbs14n2.mediatek.inc [(172.21.101.76)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 53952760; Sun, 26 May 2024 22:44:45 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by MTKMBS09N2.mediatek.inc (172.21.101.94) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Sun, 26 May 2024 07:44:44 -0700 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Sun, 26 May 2024 22:44:44 +0800 From: Jason-JH.Lin To: Jassi Brar , Krzysztof Kozlowski , Rob Herring , Matthias Brugger , Chun-Kuang Hu , AngeloGioacchino Del Regno CC: Conor Dooley , Jason-ch Chen , "Jason-JH . Lin" , Singo Chang , Nancy Lin , Shawn Sung , , , , , , Subject: [PATCH RESEND, v6 4/8] mailbox: mtk-cmdq: Support GCE loop packets in interrupt handler Date: Sun, 26 May 2024 22:44:39 +0800 Message-ID: <20240526144443.14345-5-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240526144443.14345-1-jason-jh.lin@mediatek.com> References: <20240526144443.14345-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-MTK: N X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 1. Add a loop flag for CMDQ packet struct. CMDQ helper will use a loop flag to mark CMDQ packet as lopping command and make current command buffer jumps to the beginning when GCE executes to the end of command buffer. 2. Add a looping task handle flow in irq handler. GCE irq occurs when GCE executes to the end of command(EOC) instruction. If the CMDQ packet is a loopping command, GCE irq handler can not delete the CMDQ task and disable the GCE thread. Signed-off-by: Jason-JH.Lin Signed-off-by: Hsiao Chien Sung --- drivers/mailbox/mtk-cmdq-mailbox.c | 11 +++++++++++ include/linux/mailbox/mtk-cmdq-mailbox.h | 1 + 2 files changed, 12 insertions(+) diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c index 4aa394e91109..618023011d31 100644 --- a/drivers/mailbox/mtk-cmdq-mailbox.c +++ b/drivers/mailbox/mtk-cmdq-mailbox.c @@ -267,6 +267,17 @@ static void cmdq_thread_irq_handler(struct cmdq *cmdq, curr_pa = readl(thread->base + CMDQ_THR_CURR_ADDR) << cmdq->pdata->shift; + task = list_first_entry_or_null(&thread->task_busy_list, + struct cmdq_task, list_entry); + if (task && task->pkt->loop) { + struct cmdq_cb_data data; + + data.sta = err; + data.pkt = task->pkt; + mbox_chan_received_data(task->thread->chan, &data); + return; + } + list_for_each_entry_safe(task, tmp, &thread->task_busy_list, list_entry) { task_end_pa = task->pa_base + task->pkt->cmd_buf_size; diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h index a8f0070c7aa9..f78a08e7c6ed 100644 --- a/include/linux/mailbox/mtk-cmdq-mailbox.h +++ b/include/linux/mailbox/mtk-cmdq-mailbox.h @@ -76,6 +76,7 @@ struct cmdq_pkt { size_t cmd_buf_size; /* command occupied size */ size_t buf_size; /* real buffer size */ void *cl; + bool loop; }; u8 cmdq_get_shift_pa(struct mbox_chan *chan);