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=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 CB936C10F11 for ; Wed, 24 Apr 2019 17:52:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9BDB72089F for ; Wed, 24 Apr 2019 17:52:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1556128336; bh=Tbto7VOcWpcp4JkzBUhDKCdWw3GZzcbMR6by2PWFsaY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=jFwM9HjyRmgkg8Ssw/HNaObIYuzbHK7EdZjD0xaThMEeSqn7MSvZyZramDZLaj38Z rSOaAJ7f/cib9VhEmcS/LjvlvczOBOTT1WoyQq0+owKwtC57fSOP9R5xZl/B8oU6C7 QMcD6wqak5Kst897kO2Gm+qS3/Ih/X0JgOYtY9v0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390143AbfDXR2H (ORCPT ); Wed, 24 Apr 2019 13:28:07 -0400 Received: from mail.kernel.org ([198.145.29.99]:54248 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390591AbfDXR2F (ORCPT ); Wed, 24 Apr 2019 13:28:05 -0400 Received: from localhost (62-193-50-229.as16211.net [62.193.50.229]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 34825206BA; Wed, 24 Apr 2019 17:28:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1556126883; bh=Tbto7VOcWpcp4JkzBUhDKCdWw3GZzcbMR6by2PWFsaY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tuqzgkObswXfrRJeMhlik8fNyPBcVjTuzAzabuT4bKhd4OY1ZCRXi+vgmDU3IQwli SutbNABdYMUMNN5K12SGuDjuMXpKzRU+9QW+Ua9OOWV6Ogr1Dl4K6moFE0EhvMylor nmNXtGBGVAkyq2Lpl7llGHBdyfrMwrvBgL/Nalz8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Adrian Hunter , Ulf Hansson , Sasha Levin Subject: [PATCH 4.14 51/70] mmc: sdhci: Handle auto-command errors Date: Wed, 24 Apr 2019 19:10:11 +0200 Message-Id: <20190424170916.907286525@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190424170906.751869122@linuxfoundation.org> References: <20190424170906.751869122@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [ Upstream commit af849c86109d79222e549826068bbf4e7f9a2472 ] If the host controller supports auto-commands then enable the auto-command error interrupt and handle it. In the case of auto-CMD23, the error is treated the same as manual CMD23 error. In the case of auto-CMD12, commands-during-transfer are not permitted, so the error handling is treated the same as a data error. Signed-off-by: Adrian Hunter Signed-off-by: Ulf Hansson Signed-off-by: Sasha Levin --- drivers/mmc/host/sdhci.c | 35 +++++++++++++++++++++++++++++++++++ drivers/mmc/host/sdhci.h | 7 ++++++- 2 files changed, 41 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 8abbe40a9a05..9540fda7fc6b 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -790,6 +790,11 @@ static void sdhci_set_transfer_irqs(struct sdhci_host *host) else host->ier = (host->ier & ~dma_irqs) | pio_irqs; + if (host->flags & (SDHCI_AUTO_CMD23 | SDHCI_AUTO_CMD12)) + host->ier |= SDHCI_INT_AUTO_CMD_ERR; + else + host->ier &= ~SDHCI_INT_AUTO_CMD_ERR; + sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); } @@ -2560,6 +2565,21 @@ static void sdhci_timeout_data_timer(unsigned long data) static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *intmask_p) { + /* Handle auto-CMD12 error */ + if (intmask & SDHCI_INT_AUTO_CMD_ERR && host->data_cmd) { + struct mmc_request *mrq = host->data_cmd->mrq; + u16 auto_cmd_status = sdhci_readw(host, SDHCI_AUTO_CMD_STATUS); + int data_err_bit = (auto_cmd_status & SDHCI_AUTO_CMD_TIMEOUT) ? + SDHCI_INT_DATA_TIMEOUT : + SDHCI_INT_DATA_CRC; + + /* Treat auto-CMD12 error the same as data error */ + if (!mrq->sbc && (host->flags & SDHCI_AUTO_CMD12)) { + *intmask_p |= data_err_bit; + return; + } + } + if (!host->cmd) { /* * SDHCI recovers from errors by resetting the cmd and data @@ -2594,6 +2614,21 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *intmask_p) return; } + /* Handle auto-CMD23 error */ + if (intmask & SDHCI_INT_AUTO_CMD_ERR) { + struct mmc_request *mrq = host->cmd->mrq; + u16 auto_cmd_status = sdhci_readw(host, SDHCI_AUTO_CMD_STATUS); + int err = (auto_cmd_status & SDHCI_AUTO_CMD_TIMEOUT) ? + -ETIMEDOUT : + -EILSEQ; + + if (mrq->sbc && (host->flags & SDHCI_AUTO_CMD23)) { + mrq->sbc->error = err; + sdhci_finish_mrq(host, mrq); + return; + } + } + if (intmask & SDHCI_INT_RESPONSE) sdhci_finish_command(host); } diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 860b2c729e68..c0d5458c36d4 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -151,7 +151,8 @@ #define SDHCI_INT_ERROR_MASK 0xFFFF8000 #define SDHCI_INT_CMD_MASK (SDHCI_INT_RESPONSE | SDHCI_INT_TIMEOUT | \ - SDHCI_INT_CRC | SDHCI_INT_END_BIT | SDHCI_INT_INDEX) + SDHCI_INT_CRC | SDHCI_INT_END_BIT | SDHCI_INT_INDEX | \ + SDHCI_INT_AUTO_CMD_ERR) #define SDHCI_INT_DATA_MASK (SDHCI_INT_DATA_END | SDHCI_INT_DMA_END | \ SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL | \ SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_DATA_CRC | \ @@ -167,6 +168,10 @@ #define SDHCI_CQE_INT_MASK (SDHCI_CQE_INT_ERR_MASK | SDHCI_INT_CQE) #define SDHCI_AUTO_CMD_STATUS 0x3C +#define SDHCI_AUTO_CMD_TIMEOUT 0x00000002 +#define SDHCI_AUTO_CMD_CRC 0x00000004 +#define SDHCI_AUTO_CMD_END_BIT 0x00000008 +#define SDHCI_AUTO_CMD_INDEX 0x00000010 #define SDHCI_HOST_CONTROL2 0x3E #define SDHCI_CTRL_UHS_MASK 0x0007 -- 2.19.1