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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 456C3C433EF for ; Thu, 30 Sep 2021 13:19:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2B73C619EB for ; Thu, 30 Sep 2021 13:19:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349852AbhI3NUk (ORCPT ); Thu, 30 Sep 2021 09:20:40 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:47680 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1350673AbhI3NUj (ORCPT ); Thu, 30 Sep 2021 09:20:39 -0400 X-UUID: 973fccaee5584a37a98ec9f5f8e239f5-20210930 X-UUID: 973fccaee5584a37a98ec9f5f8e239f5-20210930 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 2121530296; Thu, 30 Sep 2021 21:18:53 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 30 Sep 2021 21:18:51 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkcas07.mediatek.inc (172.21.101.84) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 30 Sep 2021 21:18:51 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 30 Sep 2021 21:18:50 +0800 From: Yongqiang Niu To: Chun-Kuang Hu CC: Rob Herring , Matthias Brugger , Philipp Zabel , "David Airlie" , Daniel Vetter , Jassi Brar , Yongqiang Niu , Fabien Parent , Dennis YC Hsieh , , , , , , , Hsin-Yi Wang Subject: [PATCH v2, 1/1] mailbox: cmdq: add instruction time-out interrupt support Date: Thu, 30 Sep 2021 21:18:50 +0800 Message-ID: <20210930131850.21202-2-yongqiang.niu@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210930131850.21202-1-yongqiang.niu@mediatek.com> References: <20210930131850.21202-1-yongqiang.niu@mediatek.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-MTK: N Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org add time-out cycle setting to make sure time-out interrupt irq will happened when instruction time-out for wait and poll Signed-off-by: Yongqiang Niu --- drivers/mailbox/mtk-cmdq-mailbox.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c index 64175a893312..197b03222f94 100644 --- a/drivers/mailbox/mtk-cmdq-mailbox.c +++ b/drivers/mailbox/mtk-cmdq-mailbox.c @@ -36,6 +36,7 @@ #define CMDQ_THR_END_ADDR 0x24 #define CMDQ_THR_WAIT_TOKEN 0x30 #define CMDQ_THR_PRIORITY 0x40 +#define CMDQ_THR_INSTN_TIMEOUT_CYCLES 0x50 #define GCE_GCTL_VALUE 0x48 @@ -54,6 +55,15 @@ #define CMDQ_JUMP_BY_OFFSET 0x10000000 #define CMDQ_JUMP_BY_PA 0x10000001 +/* + * instruction time-out + * cycles to issue instruction time-out interrupt for wait and poll instructions + * GCE axi_clock 156MHz + * 1 cycle = 6.41ns + * instruction time out 2^22*2*6.41ns = 53ms + */ +#define CMDQ_INSTN_TIMEOUT_CYCLES 22 + struct cmdq_thread { struct mbox_chan *chan; void __iomem *base; @@ -376,6 +386,7 @@ static int cmdq_mbox_send_data(struct mbox_chan *chan, void *data) writel((task->pa_base + pkt->cmd_buf_size) >> cmdq->shift_pa, thread->base + CMDQ_THR_END_ADDR); + writel(CMDQ_INSTN_TIMEOUT_CYCLES, thread->base + CMDQ_THR_INSTN_TIMEOUT_CYCLES); writel(thread->priority, thread->base + CMDQ_THR_PRIORITY); writel(CMDQ_THR_IRQ_EN, thread->base + CMDQ_THR_IRQ_ENABLE); writel(CMDQ_THR_ENABLED, thread->base + CMDQ_THR_ENABLE_TASK); -- 2.25.1