From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0B2EFC433E0 for ; Tue, 7 Jul 2020 15:48:58 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 BB54920578 for ; Tue, 7 Jul 2020 15:48:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="rE0J7RcN"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="aywaiOYH" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BB54920578 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+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.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=9+6+EGsluP2Cwg02QnCBrCqpbQHVXMwnS5NYiw1jY7M=; b=rE0J7RcNhamZ7hO47P/rriRNH UBcEcxG7I78Y0NKgTXtNiFWVWrq0U8ZQmIIIDhD3eCwWQF6BqWRfq413q8x9CyFpoKucDADU3bbin g+BRWor/JOPcxQxzXTDqKj8z/bAZrDRv0hrALFozsFw06FxqNaotUE7Y3ezxmLtYuZyLe795RIxda i/ulr4Au7e2WRaovbEh7QELFLtNkX3rN6GNGK4xkI15/cVl6Kx44pm4DxFbLDTvQsguyEWyGn1Ujh io2vrabh7+Y2cGR5p5CjN5eXM8lbj3o460fEH9PLfUnZDFrNQ/42NSszsZ39PT5++GiV0q/RLNOUy iOhIoG/xQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jspod-0002Zz-Bl; Tue, 07 Jul 2020 15:47:27 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jspnw-00029q-Hx; Tue, 07 Jul 2020 15:46:45 +0000 X-UUID: 887404adad264a3087236603b7dca475-20200707 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=NMbzrFgr1D1ON+0m4oV6SYOuNW2QtIquhnTgvJXv7Bg=; b=aywaiOYHUZJcSHN7njNTXcANfWyVZtyCsXlKbL0wSZmkCc9WuhWS24vXX5oWHoLyJQxBCHl1840b/ciNbo6oMyiNC1BCrKuG+3Sp99W3bwJjOptEYf+0DRz2DsEhC7gMk9KPZFFnvYYxgfTR1nc0zSQG+9MzNEZVHBZeM1nlXAo=; X-UUID: 887404adad264a3087236603b7dca475-20200707 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 31295583; Tue, 07 Jul 2020 07:46:31 -0800 Received: from mtkmbs05n1.mediatek.inc (172.21.101.15) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 7 Jul 2020 08:46:25 -0700 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs05n1.mediatek.inc (172.21.101.15) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 7 Jul 2020 23:46:24 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 7 Jul 2020 23:46:25 +0800 From: Dennis YC Hsieh To: Matthias Brugger , Philipp Zabel , David Airlie , Daniel Vetter , CK Hu , Bibby Hsieh , Houlong Wei Subject: [PATCH v3 7/9] soc: mediatek: cmdq: add jump function Date: Tue, 7 Jul 2020 23:45:12 +0800 Message-ID: <1594136714-11650-8-git-send-email-dennis-yc.hsieh@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1594136714-11650-1-git-send-email-dennis-yc.hsieh@mediatek.com> References: <1594136714-11650-1-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-20200707_114644_770120_FB8B490E X-CRM114-Status: GOOD ( 12.92 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: wsd_upstream@mediatek.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, HS Liao , Dennis YC Hsieh , linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add jump function so that client can jump to any address which contains instruction. Signed-off-by: Dennis YC Hsieh --- drivers/soc/mediatek/mtk-cmdq-helper.c | 13 +++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 11 +++++++++++ 2 files changed, 24 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index b6e25f216605..d55dc3296105 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -13,6 +13,7 @@ #define CMDQ_POLL_ENABLE_MASK BIT(0) #define CMDQ_EOC_IRQ_EN BIT(0) #define CMDQ_REG_TYPE 1 +#define CMDQ_JUMP_RELATIVE 1 struct cmdq_instruction { union { @@ -407,6 +408,18 @@ 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_instruction inst = {}; + + inst.op = CMDQ_CODE_JUMP; + inst.offset = CMDQ_JUMP_RELATIVE; + inst.value = addr >> + cmdq_get_shift_pa(((struct cmdq_client *)pkt->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 d9390d76ee14..34354e952f60 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -253,6 +253,17 @@ 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 * -- 1.7.9.5 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel