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Mon, 27 Aug 2018 08:24:38 +0000 Date: Mon, 27 Aug 2018 16:21:35 +0800 From: Jisheng Zhang To: Adrian Hunter , Ulf Hansson Cc: , , Subject: [PATCH v5 1/3] mmc: sdhci: add adma_table_cnt member to struct sdhci_host Message-ID: <20180827162135.46285a72@xhacker.debian> In-Reply-To: <20180827162026.3901de27@xhacker.debian> References: <20180827162026.3901de27@xhacker.debian> X-Mailer: Claws Mail 3.17.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-Originating-IP: [124.74.246.114] X-ClientProxiedBy: TY2PR0101CA0012.apcprd01.prod.exchangelabs.com (2603:1096:404:92::24) To BY2PR0301MB1576.namprd03.prod.outlook.com (2a01:111:e400:526e::18) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 7e0d59fb-6936-4f9b-7aa3-08d60bf6886d X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:(7020095)(4652040)(8989137)(4534165)(4627221)(201703031133081)(201702281549075)(8990107)(5600074)(711020)(2017052603328)(7153060)(7193020);SRVR:BY2PR0301MB1576; X-Microsoft-Exchange-Diagnostics: 1;BY2PR0301MB1576;3:vbQn9cG/t1Ibfkup3B+bLEK7XvWPA0uHATLw7BlYtfs8JUnx66g2aGkg4SkLANG6zaIjU26/NR2GOSwUt2iN0ALNUm6gojP8tCE+Ti6cYpImRggfQcZJp/PDnC72AnFDg6tG+D3heHkw6nO7qZ3CbD79yf/wN7TRZ0yn9StnfH3BRUNQsq1Ll+pAaK3p2NuqDcSWo72xpJ3dcWBBtFxYM4BfSXrwTE/f27qvkaQvbvnoBLepbW9Lul+u1X/hN3nk;25:eRihxTRPRoF/F4/x+e53O1j+EuO+BroIFZgfddD+auTz1s8A6uG+wGMzVpkRd4XzMdN0c6VTZVRJqJzMirHLtYW/n9tfnTt2hj3vgVz3mC9kj2Vi3kyokebtxp1trDVTEK/RNKb3C+MuQYpDK0MlZlmmBQAlq/xWtdZgjvhvVQ4Yq140sKbLSbwWZAnB/zT+DeB1cwOd3ku3hDKsbNrWuXgVdtiV9NkOBxpuXUSpUomec77G63WOQrHOgiTVDNznDgtmjHqUdKShQEa2WFW/cTcb39P9Yd1hEfW5cWoii9IjKh3cU33w9SN4QahP9Suz9E35RtajmSplmOaTFaZsmg==;31:4uDgECUJSyyjqvBc6LMeBuUSmluilGs3fFDyDj89n0Zkt1h2gumpeNtGVTKnQNuN+Jr9/PLaRrsTa/yLtCj6Q7wJmzX6tYz0KULCWcCs+E5/SCJSJSTNfqpG7ct9SAo0JwBfD/HnDIVxKfxtJf6odVAwKgDw/ZEzZ+UHQnc/1NelKhIhqXtYv7MhME6KbYzPZ9r+qM0KHY/VGVj8WUAuOLeYy4H/P2JEoP+nmcuzldk= X-MS-TrafficTypeDiagnostic: BY2PR0301MB1576: X-Microsoft-Exchange-Diagnostics: 1;BY2PR0301MB1576;20: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;4:HCQl7JCpaVYYG28pppDrtrrm/1Vz4SbFP+FbaYU3ZfpQU3GU22Zw3a6J2aiExM9x2sVX0+ppCgEWpZlTH6kqQK+0LsDLhQ5xb/8kToj2c10G1ObMb6SA5/MOnhaEvPYow8HSy/E8epZ0PfcK0sd3sbKjlQLajI58HcJG3TBsBNGEVhd6v1GTK04uxjuMb5IxQ4Ee/TM+WqghTVNvrZ0YNGr7FPZAEdr0R66vk5Iai5RxB6x9O847XAjjvWxjJF5DYn/ppBsbuDUbTCESUPFLSnRlJ+khBG0+lHR84FA3itzCNs1EkksQDs5zP5kom9fx X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:(228905959029699); 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Default value of adma_table_cnt is set to (SDHCI_MAX_SEGS * 2 + 1). Signed-off-by: Jisheng Zhang Acked-by: Adrian Hunter --- drivers/mmc/host/sdhci.c | 17 +++++++++-------- drivers/mmc/host/sdhci.h | 3 +++ 2 files changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 1b3fbd9bd5c5..52ccf4644384 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -3322,6 +3322,13 @@ struct sdhci_host *sdhci_alloc_host(struct device *dev, host->sdma_boundary = SDHCI_DEFAULT_BOUNDARY_ARG; + /* + * The DMA table descriptor count is calculated as the maximum + * number of segments times 2, to allow for an alignment + * descriptor for each segment, plus 1 for a nop end descriptor. + */ + host->adma_table_cnt = SDHCI_MAX_SEGS * 2 + 1; + return host; } @@ -3567,18 +3574,12 @@ int sdhci_setup_host(struct sdhci_host *host) dma_addr_t dma; void *buf; - /* - * The DMA descriptor table size is calculated as the maximum - * number of segments times 2, to allow for an alignment - * descriptor for each segment, plus 1 for a nop end descriptor, - * all multipled by the descriptor size. - */ if (host->flags & SDHCI_USE_64_BIT_DMA) { - host->adma_table_sz = (SDHCI_MAX_SEGS * 2 + 1) * + host->adma_table_sz = host->adma_table_cnt * SDHCI_ADMA2_64_DESC_SZ; host->desc_sz = SDHCI_ADMA2_64_DESC_SZ; } else { - host->adma_table_sz = (SDHCI_MAX_SEGS * 2 + 1) * + host->adma_table_sz = host->adma_table_cnt * SDHCI_ADMA2_32_DESC_SZ; host->desc_sz = SDHCI_ADMA2_32_DESC_SZ; } diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index f0bd36ce3817..25bddd21de31 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -563,6 +563,9 @@ struct sdhci_host { /* Host SDMA buffer boundary. */ u32 sdma_boundary; + /* Host ADMA table count */ + u32 adma_table_cnt; + u64 data_timeout; unsigned long private[0] ____cacheline_aligned;