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Mon, 30 Jul 2018 02:46:44 +0000 Date: Mon, 30 Jul 2018 10:44:24 +0800 From: Jisheng Zhang To: Adrian Hunter , Ulf Hansson Subject: [PATCH mmc-next v3 1/3] mmc: sdhci: add adma_table_num member to struct sdhci_host Message-ID: <20180730104424.44fa39a5@xhacker.debian> X-Mailer: Claws Mail 3.16.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-Originating-IP: [124.74.246.114] X-ClientProxiedBy: TY2PR01CA0002.jpnprd01.prod.outlook.com (2603:1096:404:a::14) To BLUPR0301MB1572.namprd03.prod.outlook.com (2a01:111:e400:52a9::18) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: f242d97e-a87a-4ade-b273-08d5f5c6b09d X-Microsoft-Antispam: BCL:0; PCL:0; RULEID:(7020095)(4652040)(8989117)(5600074)(711020)(4534165)(4627221)(201703031133081)(201702281549075)(8990107)(2017052603328)(7153060)(7193020); SRVR:BLUPR0301MB1572; X-Microsoft-Exchange-Diagnostics: 1; BLUPR0301MB1572; 3:WWzQ5dKtb7gT+6UR2m7hAaTl88NCGzOSNt2Uh8z3tLVlFBnpql5GW3JyUvELv7FI8ifZ5aE7crYapt3O/TuwvsUtp431Qh3xQ+Ih7gQbGAZ1j24odbq6ROBgrCeXl9hWBlaFsavq+re3pI5g465xZbzD/XSYexmB4gPDeoRPFCdNPPKVcTEcTneadz17d/vO1dQPW2oCjRuNgS8O9xHLx2lrGmgCEG+laZX7aYLEa/yX0UI9QN8rIZlZG/y67fFD; 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Default value of adma_table_num is set to (SDHCI_MAX_SEGS * 2 + 1). Signed-off-by: Jisheng Zhang --- drivers/mmc/host/sdhci.c | 17 +++++++++-------- drivers/mmc/host/sdhci.h | 2 ++ 2 files changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index a7b5602ef6f7..14dd4a49e03b 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -3316,6 +3316,13 @@ struct sdhci_host *sdhci_alloc_host(struct device *dev, host->sdma_boundary = SDHCI_DEFAULT_BOUNDARY_ARG; + /* + * The DMA descriptor table number 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_num = SDHCI_MAX_SEGS * 2 + 1; + return host; } @@ -3561,18 +3568,12 @@ 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_num * 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_num * 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 23966f887da6..d55fd7033e93 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -563,6 +563,8 @@ struct sdhci_host { /* Host SDMA buffer boundary. */ u32 sdma_boundary; + u32 adma_table_num; + u64 data_timeout; unsigned long private[0] ____cacheline_aligned;