From patchwork Thu Feb 25 14:54:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yann Gautier X-Patchwork-Id: 387963 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 A5056C433E0 for ; Thu, 25 Feb 2021 14:56:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 46E5964ECE for ; Thu, 25 Feb 2021 14:56:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229561AbhBYO4g (ORCPT ); Thu, 25 Feb 2021 09:56:36 -0500 Received: from mx07-00178001.pphosted.com ([185.132.182.106]:46633 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229498AbhBYO4f (ORCPT ); Thu, 25 Feb 2021 09:56:35 -0500 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 11PEr8uX015318; Thu, 25 Feb 2021 15:55:35 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=selector1; bh=qCrvlMRtCkTQFfJ0RxV1KE9Dy1D6noU5d5mt7t050ao=; b=5HJnUrTYv0tTf8bCqKENBWH3CnTWsFuCgp+wStuf4hd4fVGMXm95EpbzxL8tSTVtBitW Duf5ZO/jBMIyV9Mctefm51Pvl3h/AqyO/P+zA+JKuHVXeXeLPBlMiCCQpSxfNvq1YcaH 7P8YyhCbqqttvdWHNvrdjwfsxw9H3/QyDeYNLGnhHqg5zFqxNfJVDfSJA8rYVDAYcdgc CbWv9PaoPP6w3hexZ+WWXkGrO8q4T+O1Q58XrHLEjVKRIH5DC0Y2HCd37WbmI4E1ltvi prmVz28kdBTRm1Plpf+4rLMVELhiL5hXnqwEchn2d2Tbe9yp+5JX7AvDCGj0r/zmxtOg Rg== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 36w66u6jjr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 25 Feb 2021 15:55:35 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 03DD9100034; Thu, 25 Feb 2021 15:55:33 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag2node3.st.com [10.75.127.6]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id BD585236FDD; Thu, 25 Feb 2021 15:55:33 +0100 (CET) Received: from localhost (10.75.127.46) by SFHDAG2NODE3.st.com (10.75.127.6) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Thu, 25 Feb 2021 15:55:33 +0100 From: Yann Gautier To: , CC: , , , , , , , , , , , Subject: [PATCH v2] mmc: mmci: manage MMC_CAP_NEED_RSP_BUSY for stm32 variant Date: Thu, 25 Feb 2021 15:54:54 +0100 Message-ID: <20210225145454.12780-1-yann.gautier@foss.st.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [10.75.127.46] X-ClientProxiedBy: SFHDAG3NODE1.st.com (10.75.127.7) To SFHDAG2NODE3.st.com (10.75.127.6) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369, 18.0.761 definitions=2021-02-25_09:2021-02-24,2021-02-25 signatures=0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org To properly manage commands awaiting R1B responses, the capability MMC_CAP_NEED_RSP_BUSY is enabled in mmci driver, for stm32 variant. The issue was seen on STM32MP157C-EV1 board, with an erase command, with secure erase argument, letting the card stuck, possibly waiting for 4 hours before timeout. Fixes: 94fe2580a2f3 ("mmc: core: Enable erase/discard/trim support for all mmc hosts") Signed-off-by: Yann Gautier --- This is somehow a v2 for patch [1]. Changes: - Only apply MMC_CAP_NEED_RSP_BUSY to stm32 variant - Cap the used timeout written to MMCIDATATIMER (when using MMC_CAP_NEED_RSP_BUSY, cmd->busy_timeout may be greater than host->max_busy_timeout) [1] https://patchwork.kernel.org/project/linux-mmc/patch/20210204120547.15381-2-yann.gautier@foss.st.com/ drivers/mmc/host/mmci.c | 8 +++++++- drivers/mmc/host/mmci_stm32_sdmmc.c | 1 + 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 17dbc81c221e..89e0e9ccfb71 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -1242,7 +1242,13 @@ mmci_start_command(struct mmci_host *host, struct mmc_command *cmd, u32 c) if (!cmd->busy_timeout) cmd->busy_timeout = 10 * MSEC_PER_SEC; - clks = (unsigned long long)cmd->busy_timeout * host->cclk; + if (host->mmc->caps & MMC_CAP_NEED_RSP_BUSY && + host->mmc->max_busy_timeout && + cmd->busy_timeout > host->mmc->max_busy_timeout) + clks = (unsigned long long)host->mmc->max_busy_timeout * host->cclk; + else + clks = (unsigned long long)cmd->busy_timeout * host->cclk; + do_div(clks, MSEC_PER_SEC); writel_relaxed(clks, host->base + MMCIDATATIMER); } diff --git a/drivers/mmc/host/mmci_stm32_sdmmc.c b/drivers/mmc/host/mmci_stm32_sdmmc.c index 51db30acf4dc..2ad577618324 100644 --- a/drivers/mmc/host/mmci_stm32_sdmmc.c +++ b/drivers/mmc/host/mmci_stm32_sdmmc.c @@ -522,6 +522,7 @@ void sdmmc_variant_init(struct mmci_host *host) host->ops = &sdmmc_variant_ops; host->pwr_reg = readl_relaxed(host->base + MMCIPOWER); + host->mmc->caps |= MMC_CAP_NEED_RSP_BUSY; base_dlyb = devm_of_iomap(mmc_dev(host->mmc), np, 1, NULL); if (IS_ERR(base_dlyb))