From patchwork Fri Feb 28 13:44:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dennis-YC Hsieh X-Patchwork-Id: 11412361 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 40CCB159A for ; Fri, 28 Feb 2020 13:56:31 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 1ED7F2051A for ; Fri, 28 Feb 2020 13:56:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="p0ra9x7e"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="JWDzfXCo" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1ED7F2051A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=8SHQz/n4Hrj4BAwoZ4r15GoIjsMM0keKxTh0cX/Yu58=; b=p0ra9x7ewwDUtD DraOmVwAq1DdEq2MfTM0vql3gov46Bs2IKjV4uGUECYgR0kXk5Nf90M+3cQEU++M3wZ+WfNe9wrHg 3DN0DZCnyBij5EieAGjRhQGNxRcuwI6m4IpM98qAQtEGYLsewvZVSAwLcLCZP9rAj+iFjq/BnTaQs 60kLAHRt2sJLbyY+Sk8hruijtpM59uA72h+ay6IYehHpC3nE98Awq14uPbIsBryfAKyDKX0Dgc6Jf Rjd7LG0+2bOa9joHkJUV0KY0siNN24c79RN+HGU1i8/iYI1dnUNjHwQoSwHudLj3JhsX+pANpDVCi m0BTwPr/YrIy+d4LvYOQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j7g7w-0008Ax-8s; Fri, 28 Feb 2020 13:56:28 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j7g6j-00072T-Vi; Fri, 28 Feb 2020 13:55:15 +0000 X-UUID: 76987fbd53b64077aff9e1052dba859a-20200228 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=KZfobTIsb3uca4K8D79VwtQH5mbyTjn+lOiOglWGnDo=; b=JWDzfXCo5bY01DtI2sslXCrkMhOGm4gAEb2kWEqkI9ukChkrCkturME/St3KeFMDVxUZ9TiwnKH6TCGsjoSVQ3y33ra9HC12NUXBxBVeXdE09NBOd7KOfn5UNqCpFoF6p+KWBbAXu8N47mq5faWTJ6m8oSZCPFCqDS5fb+HCL8U=; X-UUID: 76987fbd53b64077aff9e1052dba859a-20200228 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1780513032; Fri, 28 Feb 2020 05:55:09 -0800 Received: from MTKMBS07N2.mediatek.inc (172.21.101.141) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 28 Feb 2020 05:45:07 -0800 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 28 Feb 2020 21:44:16 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Fri, 28 Feb 2020 21:45:04 +0800 From: Dennis YC Hsieh To: Rob Herring , Matthias Brugger , Jassi Brar Subject: [PATCH v3 11/13] soc: mediatek: cmdq: add jump function Date: Fri, 28 Feb 2020 21:44:19 +0800 Message-ID: <1582897461-15105-13-git-send-email-dennis-yc.hsieh@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1582897461-15105-1-git-send-email-dennis-yc.hsieh@mediatek.com> References: <1582897461-15105-1-git-send-email-dennis-yc.hsieh@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-20200228_055514_070034_F1201F6E X-CRM114-Status: UNSURE ( 9.88 ) X-CRM114-Notice: Please train this message. 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Signed-off-by: Dennis YC Hsieh --- drivers/soc/mediatek/mtk-cmdq-helper.c | 12 ++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 11 +++++++++++ 2 files changed, 23 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 58fec634dcf1..bbc68a7c81e9 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -372,6 +372,18 @@ int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 value) } EXPORT_SYMBOL(cmdq_pkt_assign); +int cmdq_pkt_jump(struct cmdq_pkt *pkt, dma_addr_t addr) +{ + struct cmdq_client *cl = pkt->cl; + struct cmdq_instruction inst = { {0} }; + + inst.op = CMDQ_CODE_JUMP; + inst.offset = 1; + inst.value = addr >> cmdq_mbox_shift(cl->chan); + return cmdq_pkt_append_command(pkt, inst); +} +EXPORT_SYMBOL(cmdq_pkt_jump); + int cmdq_pkt_finalize(struct cmdq_pkt *pkt) { struct cmdq_instruction inst = { {0} }; diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index 99e77155f967..1a6c56f3bec1 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -213,6 +213,17 @@ int cmdq_pkt_poll_mask(struct cmdq_pkt *pkt, u8 subsys, */ int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 value); +/** + * cmdq_pkt_jump() - Append jump command to the CMDQ packet, ask GCE + * to execute an instruction that change current thread PC to + * a physical address which should contains more instruction. + * @pkt: the CMDQ packet + * @addr: physical address of target instruction buffer + * + * Return: 0 for success; else the error code is returned + */ +int cmdq_pkt_jump(struct cmdq_pkt *pkt, dma_addr_t addr); + /** * cmdq_pkt_finalize() - Append EOC and jump command to pkt. * @pkt: the CMDQ packet