From patchwork Fri Dec 22 04:52:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?SmFzb24tSkggTGluICjmnpfnnb/npaUp?= X-Patchwork-Id: 757955 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) (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 1FC8363A7; Fri, 22 Dec 2023 04:52:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mediatek.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="YGHObL/P" X-UUID: eaf4f550a08511eeba30773df0976c77-20231222 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=psOz/D6w4cz5Ki4AhGxRPNaz/YjLmA8Yz1FbmApe4v4=; b=YGHObL/PFf49d4JEZ/9H51A91DHpk3IHwGF3Uq+rKu4VCRO84WCK3NXUObM3dcA7SP8Jio9tekPUOwGyoD9oUd8RtOCVR7HZF+6D850aN67pPrVufGzj6dgdWMMa6w83sJXoozMmeDJcsRM0ZjxEDDy1ggfTczPztfnw7AUcMSE=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.35, REQID:976dfcfc-67b4-4003-9530-4f9f495b9986, IP:0, U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:5d391d7, CLOUDID:a4d20c82-8d4f-477b-89d2-1e3bdbef96d1, B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES: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: eaf4f550a08511eeba30773df0976c77-20231222 Received: from mtkmbs11n2.mediatek.inc [(172.21.101.187)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1062368413; Fri, 22 Dec 2023 12:52:32 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Fri, 22 Dec 2023 12:52:31 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Fri, 22 Dec 2023 12:52:31 +0800 From: Jason-JH.Lin To: Jassi Brar , Rob Herring , Krzysztof Kozlowski , Matthias Brugger , AngeloGioacchino Del Regno , Chun-Kuang Hu CC: Conor Dooley , Mauro Carvalho Chehab , , , , , , Jason-ch Chen , Johnson Wang , "Jason-JH . Lin" , Singo Chang , Nancy Lin , Shawn Sung , Subject: [PATCH v3 6/9] soc: mediatek: cmdq: Add cmdq_pkt_finalize_loop for looping cmd with irq Date: Fri, 22 Dec 2023 12:52:25 +0800 Message-ID: <20231222045228.27826-7-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20231222045228.27826-1-jason-jh.lin@mediatek.com> References: <20231222045228.27826-1-jason-jh.lin@mediatek.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--0.492500-8.000000 X-TMASE-MatchedRID: wDTc/wNgEcO6S8yZYvyqCb2xWbKjBfWPuLwbhNl9B5VOCtCDJNptxhFx R5JQAS6O09NQNrxIpFYQ5m8HWfjjn8xcivU0QoqPaK+MsTwM+1mlAfiiC1VA/eLsQIDmr3S5cBd H+AtoPBrL7a7vhpw6CIAy6p60ZV62Mhe627A+8aHdB/CxWTRRu+rAZ8KTspSzWT4KJpMmg3S77I sKEkexbNJvOnGME/lLUUuOsHK3otwxOgedmAunpWBME6/SK5iEAY/ZF9gZTzXp92WPce4cNxkUg 0Ll9q5JF0aD5ljt43pMcHZD6gqu7wxMjfifIXfowkvVoA11Twp+3BndfXUhXQ== X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--0.492500-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 9F3AB5016B390CB062D039916EE8A520BB800B7261D22405B9ABB79809388DDB2000:8 X-MTK: N Add cmdq_pkt_finalize_loop to CMDQ driver. cmdq_pkt_finalize_loop appends end of command(EOC) instruction and jump to start of command buffer instruction to make the command buffer loopable. Signed-off-by: Jason-JH.Lin --- drivers/soc/mediatek/mtk-cmdq-helper.c | 23 +++++++++++++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 8 ++++++++ 2 files changed, 31 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index dfef436d9b8a..b6ba8b5d0db7 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -475,6 +475,29 @@ int cmdq_pkt_finalize(struct cmdq_pkt *pkt) } EXPORT_SYMBOL(cmdq_pkt_finalize); +int cmdq_pkt_finalize_loop(struct cmdq_pkt *pkt) +{ + struct cmdq_instruction inst = { {0} }; + int err; + + /* insert EOC and generate IRQ for each command iteration */ + inst.op = CMDQ_CODE_EOC; + inst.value = CMDQ_EOC_IRQ_EN; + err = cmdq_pkt_append_command(pkt, inst); + if (err < 0) + return err; + + /* JUMP to start of pkt */ + err = cmdq_pkt_jump(pkt, pkt->pa_base); + if (err < 0) + return err; + + pkt->loop = true; + + return err; +} +EXPORT_SYMBOL(cmdq_pkt_finalize_loop); + int cmdq_pkt_flush_async(struct cmdq_pkt *pkt) { int err; diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index d1cd8108cad0..39994fc8a4f5 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -329,6 +329,14 @@ int cmdq_pkt_jump(struct cmdq_pkt *pkt, dma_addr_t addr); */ int cmdq_pkt_finalize(struct cmdq_pkt *pkt); +/** + * cmdq_pkt_finalize_loop() - Append EOC and jump to start command. + * @pkt: the CMDQ packet + * + * Return: 0 for success; else the error code is returned + */ +int cmdq_pkt_finalize_loop(struct cmdq_pkt *pkt); + /** * cmdq_pkt_flush_async() - trigger CMDQ to asynchronously execute the CMDQ * packet and call back at the end of done packet