From patchwork Wed Aug 23 15:13:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?U2hhd24gU3VuZyAo5a6L5a2d6KyZKQ==?= X-Patchwork-Id: 13362719 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 4E50BEE49A3 for ; Wed, 23 Aug 2023 15:14:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:CC:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=GQhZU5jltz/YkgRBmJidnMnzG4E1Okj2IfoRrJzjcxQ=; b=x0QYAUoYh5OMir/nVu0G9d9ptA cGRoO69uOPWzyLfT39UnEpxzxGzW+7d3N5M2djpudJxa3BbA7LQdVzW3faBhZfMcmS8RbGG/Rj6Xp BCyMFSx13L7SvN0rYmnnBm3ezmV2oSjJUGVo9zUJ9YF0BfO9RES/mc1IIdFSqfQbbVw/pgHF9lg3e HqxA/TvuwDd9CKa/+IAo+lA/KRFVrlbUkP010mZAyFFScfgvwBSzKrvJXfMytaf+aw2NDqSDMpNYa msqUus1AXuXWSl9V4dV5LuWAyosWNJsdruKrqkA5nwtOjmD+To6UjKi5CJxd41136WI8fB60Rvvvj uALbEhCg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qYpZC-000wNR-0U; Wed, 23 Aug 2023 15:14:42 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qYpYe-000vxh-1l; Wed, 23 Aug 2023 15:14:11 +0000 X-UUID: ad47490041c711ee912e1518a6540028-20230823 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=GQhZU5jltz/YkgRBmJidnMnzG4E1Okj2IfoRrJzjcxQ=; b=riTo1pdHGek2OX/FHiSz3CKLg6Hth1N7k+NK7WMVmepkhuoVXN6oZBcEQCdjH0BVmv1uVjdKnX7BvD0QQ+PhmdHrDOsMwtMIIraJC3AlMusCQ4102CRh9fyKti/mI8jUIePmA2kROa0/fHts5zkpWPLWWz9S9YSASgqd79nzpV4=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.31,REQID:c7927365-33c5-47d1-a473-42e5eb47f771,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:95 X-CID-INFO: VERSION:1.1.31,REQID:c7927365-33c5-47d1-a473-42e5eb47f771,IP:0,URL :0,TC:0,Content:0,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Spam_GS981B3D,ACTION :quarantine,TS:95 X-CID-META: VersionHash:0ad78a4,CLOUDID:9804ab1f-33fd-4aaa-bb43-d3fd68d9d5ae,B ulkID:230823231355RRXIN3SB,BulkQuantity:1,Recheck:0,SF:38|29|28|17|19|48,T C:nil,Content:0,EDM:-3,IP:nil,URL:0,File:nil,Bulk:40,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 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_ASC,TF_CID_SPAM_FAS,TF_CID_SPAM_FSD,TF_CID_SPAM_SNR, TF_CID_SPAM_SDM X-UUID: ad47490041c711ee912e1518a6540028-20230823 Received: from mtkmbs14n2.mediatek.inc [(172.21.101.76)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1546460982; Wed, 23 Aug 2023 08:13:55 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by MTKMBS14N1.mediatek.inc (172.21.101.75) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Wed, 23 Aug 2023 23:13:52 +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; Wed, 23 Aug 2023 23:13:52 +0800 From: Hsiao Chien Sung To: Chun-Kuang Hu , Philipp Zabel , David Airlie , Daniel Vetter , Matthias Brugger , AngeloGioacchino Del Regno , Jassi Brar CC: , , , , Singo Chang , Nancy Lin , Jason-JH Lin , Hsiao Chien Sung Subject: [PATCH 03/15] soc: mediatek: Support GCE thread loop Date: Wed, 23 Aug 2023 23:13:20 +0800 Message-ID: <20230823151332.28811-4-shawn.sung@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230823151332.28811-1-shawn.sung@mediatek.com> References: <20230823151332.28811-1-shawn.sung@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230823_081408_613270_D9379F33 X-CRM114-Status: GOOD ( 13.83 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Add a new API to create GCE thread loop by appending a command at the end of CMDQ packet to jump to the head of it. Signed-off-by: Hsiao Chien Sung --- drivers/soc/mediatek/mtk-cmdq-helper.c | 30 ++++++++++++++++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 2 ++ 2 files changed, 32 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index c1837a468267..7d503d491c0d 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -430,6 +430,9 @@ int cmdq_pkt_flush_async(struct cmdq_pkt *pkt) int err; struct cmdq_client *client = (struct cmdq_client *)pkt->cl; + dma_sync_single_for_device(client->chan->mbox->dev, pkt->pa_base, + pkt->cmd_buf_size, DMA_TO_DEVICE); + err = mbox_send_message(client->chan, pkt); if (err < 0) return err; @@ -440,4 +443,31 @@ int cmdq_pkt_flush_async(struct cmdq_pkt *pkt) } EXPORT_SYMBOL(cmdq_pkt_flush_async); +int cmdq_pkt_finalize_loop(struct cmdq_pkt *pkt) +{ + struct cmdq_instruction inst = { {0} }; + int err; + u8 shift_pa = 0; + + shift_pa = cmdq_get_shift_pa(((struct cmdq_client *)pkt->cl)->chan); + + /* insert EOC and generate IRQ for 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 head of the packet */ + inst.op = CMDQ_CODE_JUMP; + inst.offset = CMDQ_JUMP_RELATIVE; + inst.value = pkt->pa_base >> shift_pa; + err = cmdq_pkt_append_command(pkt, inst); + + pkt->loop = true; + + return err; +} +EXPORT_SYMBOL(cmdq_pkt_finalize_loop); + MODULE_LICENSE("GPL v2"); diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index 3eb95ef34c6c..4c30f891d924 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -273,6 +273,8 @@ int cmdq_pkt_jump(struct cmdq_pkt *pkt, dma_addr_t addr); */ int cmdq_pkt_finalize(struct cmdq_pkt *pkt); +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