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From: Lucas Stach <dev@lynxeye.de>
To: barebox@lists.infradead.org
Subject: [PATCH 12/24] net: at91_ether: convert to streaming DMA ops
Date: Sun,  1 Mar 2015 14:17:10 +0100	[thread overview]
Message-ID: <1425215842-6982-13-git-send-email-dev@lynxeye.de> (raw)
In-Reply-To: <1425215842-6982-1-git-send-email-dev@lynxeye.de>

Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
---
 drivers/net/at91_ether.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/at91_ether.c b/drivers/net/at91_ether.c
index 2ef24cc..d596834 100644
--- a/drivers/net/at91_ether.c
+++ b/drivers/net/at91_ether.c
@@ -35,7 +35,6 @@
 #include <linux/clk.h>
 #include <linux/mii.h>
 #include <errno.h>
-#include <asm/mmu.h>
 #include <linux/phy.h>
 
 #include "at91_ether.h"
@@ -200,7 +199,8 @@ static int at91_ether_send(struct eth_device *edev, void *packet, int length)
 {
 	while (!(at91_emac_read(AT91_EMAC_TSR) & AT91_EMAC_TSR_BNQ));
 
-	dma_flush_range((ulong) packet, (ulong)packet + length);
+	dma_sync_single_for_device((unsigned long)packet, length, DMA_TO_DEVICE);
+
 	/* Set address of the data in the Transmit Address register */
 	at91_emac_write(AT91_EMAC_TAR, (unsigned long) packet);
 	/* Set length of the packet in the Transmit Control register */
@@ -211,6 +211,8 @@ static int at91_ether_send(struct eth_device *edev, void *packet, int length)
 	at91_emac_write(AT91_EMAC_TSR,
 		at91_emac_read(AT91_EMAC_TSR) | AT91_EMAC_TSR_COMP);
 
+	dma_sync_single_for_cpu((unsigned long)packet, length, DMA_TO_DEVICE);
+
 	return 0;
 }
 
@@ -225,7 +227,11 @@ static int at91_ether_rx(struct eth_device *edev)
 
 	size = rbfp->size & RBF_SIZE;
 
+	dma_sync_single_for_cpu((unsigned long)rbfp->addr, size,
+				DMA_FROM_DEVICE);
 	net_receive(edev, (unsigned char *)(rbfp->addr & RBF_ADDR), size);
+	dma_sync_single_for_device((unsigned long)rbfp->addr, size,
+				   DMA_FROM_DEVICE);
 
 	rbfp->addr &= ~RBF_OWNER;
 	if (rbfp->addr & RBF_WRAP)
-- 
2.1.0


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  parent reply	other threads:[~2015-03-01 13:19 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-01 13:16 [PATCH 00/24] Phasing out direct usage of asm/mmu.h on ARM Lucas Stach
2015-03-01 13:16 ` [PATCH 01/24] usb: gadget: include common.h in header Lucas Stach
2015-03-01 13:17 ` [PATCH 02/24] ARM: move virt<->phys translation to io.h Lucas Stach
2015-03-01 13:17 ` [PATCH 03/24] dma: add streaming DMA ops Lucas Stach
2015-03-01 13:17 ` [PATCH 04/24] ARM: move DMA alloc functions to dma.h Lucas Stach
2015-03-01 13:17 ` [PATCH 05/24] ARM: implement streaming DMA ops Lucas Stach
2015-03-01 13:17 ` [PATCH 06/24] AHCI: convert to " Lucas Stach
2015-03-01 13:17 ` [PATCH 07/24] MCI: dw-mmc: " Lucas Stach
2015-03-01 13:17 ` [PATCH 08/24] MCI: imx: " Lucas Stach
2015-03-01 13:17 ` [PATCH 09/24] MCI: tegra-sdmmc: " Lucas Stach
2015-03-01 13:17 ` [PATCH 10/24] net: arc-emac: " Lucas Stach
2015-03-01 13:17 ` [PATCH 11/24] net: cpsw: " Lucas Stach
2015-03-02  8:37   ` Jan Weitzel
2015-03-01 13:17 ` Lucas Stach [this message]
2015-03-01 13:17 ` [PATCH 13/24] net: davinci_emac: " Lucas Stach
2015-03-01 13:17 ` [PATCH 14/24] net: designware: " Lucas Stach
2015-03-01 13:17 ` [PATCH 15/24] net: fec: " Lucas Stach
2015-03-01 13:17 ` [PATCH 16/24] net: macb: " Lucas Stach
2015-03-01 13:17 ` [PATCH 17/24] net: orion-gbe: " Lucas Stach
2015-03-01 13:17 ` [PATCH 18/24] net: rtl8169: " Lucas Stach
2015-03-01 13:17 ` [PATCH 19/24] net: xgmac: " Lucas Stach
2015-03-01 13:17 ` [PATCH 20/24] usb: gadget: fsl_udc: " Lucas Stach
2015-03-01 13:17 ` [PATCH 21/24] usb: host: ehci: " Lucas Stach
2015-03-01 13:17 ` [PATCH 22/24] usb: host: ohci: " Lucas Stach
2015-03-01 13:17 ` [PATCH 23/24] ARM: bcm2835: mbox: " Lucas Stach
2015-03-01 13:17 ` [PATCH 24/24] ARM: MMU: unexport cache maintenance functions Lucas Stach
2015-03-03  8:37 ` [PATCH 00/24] Phasing out direct usage of asm/mmu.h on ARM Sascha Hauer

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