From patchwork Thu Jul 4 15:04:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jose Abreu X-Patchwork-Id: 11031639 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1470E112C for ; Thu, 4 Jul 2019 15:05:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F32B028814 for ; Thu, 4 Jul 2019 15:05:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E375028787; Thu, 4 Jul 2019 15:05:03 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 0EB5128787 for ; Thu, 4 Jul 2019 15:05:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=guGNnLb7KHFAUw/0tg2Dk9iqQtJmmUM2p/nS3/xp69w=; b=bMg0CtNgZ47CWIPpjCpz/iYdXI 6BKHGQ1I6UlLmZkr/lKgGpXZBCjPH/lS1f2vMb16Xp8Tu8mp6M3iolTiBNu36SNakMyX4CNZ8IuXW LmtKUucUtffq73dBu55VnhT3p/sFsnyNCxhslJLZQEE2Tk/eJvGGRxi7Kd8fuI24Ab2T8k4HG9jIt y8LjPN2Nfaj9m3mdib1H5Sjlpi80JWiBULcfdLxBHZ5VlrF5a6MEPBaUiTjBL3CHGT7kLUPM4m9zx Iy7uDHEUJF3FNYIycOn2wF4YOkwsXghY9PkgsjoZJdNUAXl2Pl6fxquHe//t03iBYWio3/6AjiVOQ mUz6t54Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hj3ID-0003tm-He; Thu, 04 Jul 2019 15:05:01 +0000 Received: from dc8-smtprelay2.synopsys.com ([198.182.47.102] helo=smtprelay-out1.synopsys.com) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hj3He-0003Qm-Q4 for linux-arm-kernel@lists.infradead.org; Thu, 04 Jul 2019 15:04:29 +0000 Received: from mailhost.synopsys.com (mdc-mailhost2.synopsys.com [10.225.0.210]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id C2764C2975; Thu, 4 Jul 2019 15:04:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1562252666; bh=8/IDjB2DIXJSOAN7JOjH5TAznklTry/7Vqz9VmBB80k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=JGQUssCnWUgLGamKaR5b6TpPfUAMOrh4SPTzzVbBRXOa5NBANCUzdP7MvIMJ1kk11 zd6MIG7smvbr3834tZ8hOU6aa8ivPMbeqPXD3ECZpVdSHVg43RpYBd77Pk+Efl29qS Pm5ETt5wpRNDAoBexZ7JgLukygw0CnwK0FGC2hN3I4i+PCygc87rJgR2AzRx3m3UpM jgExI+EN5xs91VlPfdZbDR7q/0Qzk4nFtgKxmrAyWFJHO+Blc30hxIAhFjAIKiDWIx OGZcQYVsQmHONsTJGWYJ0bdrLX3WhgWzrqN+ZkfptxCUunSVU53UBO0KesYZyE0Mou ZrIZ1ooj+cZYw== Received: from de02.synopsys.com (germany.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id 903D6A0065; Thu, 4 Jul 2019 15:04:23 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 52F123FC63; Thu, 4 Jul 2019 17:04:23 +0200 (CEST) From: Jose Abreu To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH net-next v2 2/3] net: stmmac: Fix descriptors address being in > 32 bits address space Date: Thu, 4 Jul 2019 17:04:13 +0200 Message-Id: <15a55f0542be506412bbe1ac75cc633ebe44d6f0.1562252534.git.joabreu@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190704_080426_870254_A4B71D53 X-CRM114-Status: GOOD ( 16.08 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jose Abreu , Joao Pinto , Alexandre Torgue , Maxime Ripard , Chen-Yu Tsai , Maxime Coquelin , Giuseppe Cavallaro , "David S . Miller" MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Commit a993db88d17d ("net: stmmac: Enable support for > 32 Bits addressing in XGMAC"), introduced support for > 32 bits addressing in XGMAC but the conversion of descriptors to dma_addr_t was left out. As some devices assing coherent memory in regions > 32 bits we need to set lower and upper value of descriptors address when initializing DMA channels. Luckly, this was working for me because I was assigning CMA to < 4GB address space for performance reasons. Fixes: a993db88d17d ("net: stmmac: Enable support for > 32 Bits addressing in XGMAC") Signed-off-by: Jose Abreu Cc: Joao Pinto Cc: David S. Miller Cc: Giuseppe Cavallaro Cc: Alexandre Torgue Cc: Maxime Coquelin Cc: Maxime Ripard Cc: Chen-Yu Tsai --- drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 8 ++++---- drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c | 8 ++++---- drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c | 8 ++++---- drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c | 8 ++++---- drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h | 2 ++ drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c | 10 ++++++---- drivers/net/ethernet/stmicro/stmmac/hwif.h | 4 ++-- 7 files changed, 26 insertions(+), 22 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c index 6d5cba4075eb..2856f3fe5266 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c @@ -289,18 +289,18 @@ static void sun8i_dwmac_dma_init(void __iomem *ioaddr, static void sun8i_dwmac_dma_init_rx(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg, - u32 dma_rx_phy, u32 chan) + dma_addr_t dma_rx_phy, u32 chan) { /* Write RX descriptors address */ - writel(dma_rx_phy, ioaddr + EMAC_RX_DESC_LIST); + writel(lower_32_bits(dma_rx_phy), ioaddr + EMAC_RX_DESC_LIST); } static void sun8i_dwmac_dma_init_tx(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg, - u32 dma_tx_phy, u32 chan) + dma_addr_t dma_tx_phy, u32 chan) { /* Write TX descriptors address */ - writel(dma_tx_phy, ioaddr + EMAC_TX_DESC_LIST); + writel(lower_32_bits(dma_tx_phy), ioaddr + EMAC_TX_DESC_LIST); } /* sun8i_dwmac_dump_regs() - Dump EMAC address space diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c index 1fdedf77678f..2bac49b49f73 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c @@ -112,18 +112,18 @@ static void dwmac1000_dma_init(void __iomem *ioaddr, static void dwmac1000_dma_init_rx(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg, - u32 dma_rx_phy, u32 chan) + dma_addr_t dma_rx_phy, u32 chan) { /* RX descriptor base address list must be written into DMA CSR3 */ - writel(dma_rx_phy, ioaddr + DMA_RCV_BASE_ADDR); + writel(lower_32_bits(dma_rx_phy), ioaddr + DMA_RCV_BASE_ADDR); } static void dwmac1000_dma_init_tx(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg, - u32 dma_tx_phy, u32 chan) + dma_addr_t dma_tx_phy, u32 chan) { /* TX descriptor base address list must be written into DMA CSR4 */ - writel(dma_tx_phy, ioaddr + DMA_TX_BASE_ADDR); + writel(lower_32_bits(dma_tx_phy), ioaddr + DMA_TX_BASE_ADDR); } static u32 dwmac1000_configure_fc(u32 csr6, int rxfifosz) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c index c980cc7360a4..8f0d9bc7cab5 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c @@ -31,18 +31,18 @@ static void dwmac100_dma_init(void __iomem *ioaddr, static void dwmac100_dma_init_rx(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg, - u32 dma_rx_phy, u32 chan) + dma_addr_t dma_rx_phy, u32 chan) { /* RX descriptor base addr lists must be written into DMA CSR3 */ - writel(dma_rx_phy, ioaddr + DMA_RCV_BASE_ADDR); + writel(lower_32_bits(dma_rx_phy), ioaddr + DMA_RCV_BASE_ADDR); } static void dwmac100_dma_init_tx(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg, - u32 dma_tx_phy, u32 chan) + dma_addr_t dma_tx_phy, u32 chan) { /* TX descriptor base addr lists must be written into DMA CSR4 */ - writel(dma_tx_phy, ioaddr + DMA_TX_BASE_ADDR); + writel(lower_32_bits(dma_tx_phy), ioaddr + DMA_TX_BASE_ADDR); } /* Store and Forward capability is not used at all. diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c index 0f208e13da9f..6cbcdaea55f6 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c @@ -70,7 +70,7 @@ static void dwmac4_dma_axi(void __iomem *ioaddr, struct stmmac_axi *axi) static void dwmac4_dma_init_rx_chan(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg, - u32 dma_rx_phy, u32 chan) + dma_addr_t dma_rx_phy, u32 chan) { u32 value; u32 rxpbl = dma_cfg->rxpbl ?: dma_cfg->pbl; @@ -79,12 +79,12 @@ static void dwmac4_dma_init_rx_chan(void __iomem *ioaddr, value = value | (rxpbl << DMA_BUS_MODE_RPBL_SHIFT); writel(value, ioaddr + DMA_CHAN_RX_CONTROL(chan)); - writel(dma_rx_phy, ioaddr + DMA_CHAN_RX_BASE_ADDR(chan)); + writel(lower_32_bits(dma_rx_phy), ioaddr + DMA_CHAN_RX_BASE_ADDR(chan)); } static void dwmac4_dma_init_tx_chan(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg, - u32 dma_tx_phy, u32 chan) + dma_addr_t dma_tx_phy, u32 chan) { u32 value; u32 txpbl = dma_cfg->txpbl ?: dma_cfg->pbl; @@ -97,7 +97,7 @@ static void dwmac4_dma_init_tx_chan(void __iomem *ioaddr, writel(value, ioaddr + DMA_CHAN_TX_CONTROL(chan)); - writel(dma_tx_phy, ioaddr + DMA_CHAN_TX_BASE_ADDR(chan)); + writel(lower_32_bits(dma_tx_phy), ioaddr + DMA_CHAN_TX_BASE_ADDR(chan)); } static void dwmac4_dma_init_channel(void __iomem *ioaddr, diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h index 9a9792527530..7f86dffb264d 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h +++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h @@ -199,7 +199,9 @@ #define XGMAC_RxPBL GENMASK(21, 16) #define XGMAC_RxPBL_SHIFT 16 #define XGMAC_RXST BIT(0) +#define XGMAC_DMA_CH_TxDESC_HADDR(x) (0x00003110 + (0x80 * (x))) #define XGMAC_DMA_CH_TxDESC_LADDR(x) (0x00003114 + (0x80 * (x))) +#define XGMAC_DMA_CH_RxDESC_HADDR(x) (0x00003118 + (0x80 * (x))) #define XGMAC_DMA_CH_RxDESC_LADDR(x) (0x0000311c + (0x80 * (x))) #define XGMAC_DMA_CH_TxDESC_TAIL_LPTR(x) (0x00003124 + (0x80 * (x))) #define XGMAC_DMA_CH_RxDESC_TAIL_LPTR(x) (0x0000312c + (0x80 * (x))) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c index 229c58758cbd..a4f236e3593e 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c @@ -44,7 +44,7 @@ static void dwxgmac2_dma_init_chan(void __iomem *ioaddr, static void dwxgmac2_dma_init_rx_chan(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg, - u32 dma_rx_phy, u32 chan) + dma_addr_t phy, u32 chan) { u32 rxpbl = dma_cfg->rxpbl ?: dma_cfg->pbl; u32 value; @@ -54,12 +54,13 @@ static void dwxgmac2_dma_init_rx_chan(void __iomem *ioaddr, value |= (rxpbl << XGMAC_RxPBL_SHIFT) & XGMAC_RxPBL; writel(value, ioaddr + XGMAC_DMA_CH_RX_CONTROL(chan)); - writel(dma_rx_phy, ioaddr + XGMAC_DMA_CH_RxDESC_LADDR(chan)); + writel(upper_32_bits(phy), ioaddr + XGMAC_DMA_CH_RxDESC_HADDR(chan)); + writel(lower_32_bits(phy), ioaddr + XGMAC_DMA_CH_RxDESC_LADDR(chan)); } static void dwxgmac2_dma_init_tx_chan(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg, - u32 dma_tx_phy, u32 chan) + dma_addr_t phy, u32 chan) { u32 txpbl = dma_cfg->txpbl ?: dma_cfg->pbl; u32 value; @@ -70,7 +71,8 @@ static void dwxgmac2_dma_init_tx_chan(void __iomem *ioaddr, value |= XGMAC_OSP; writel(value, ioaddr + XGMAC_DMA_CH_TX_CONTROL(chan)); - writel(dma_tx_phy, ioaddr + XGMAC_DMA_CH_TxDESC_LADDR(chan)); + writel(upper_32_bits(phy), ioaddr + XGMAC_DMA_CH_TxDESC_HADDR(chan)); + writel(lower_32_bits(phy), ioaddr + XGMAC_DMA_CH_TxDESC_LADDR(chan)); } static void dwxgmac2_dma_axi(void __iomem *ioaddr, struct stmmac_axi *axi) diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.h b/drivers/net/ethernet/stmicro/stmmac/hwif.h index 2acfbc70e3c8..278c0dbec9d9 100644 --- a/drivers/net/ethernet/stmicro/stmmac/hwif.h +++ b/drivers/net/ethernet/stmicro/stmmac/hwif.h @@ -150,10 +150,10 @@ struct stmmac_dma_ops { struct stmmac_dma_cfg *dma_cfg, u32 chan); void (*init_rx_chan)(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg, - u32 dma_rx_phy, u32 chan); + dma_addr_t phy, u32 chan); void (*init_tx_chan)(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg, - u32 dma_tx_phy, u32 chan); + dma_addr_t phy, u32 chan); /* Configure the AXI Bus Mode Register */ void (*axi)(void __iomem *ioaddr, struct stmmac_axi *axi); /* Dump DMA registers */