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From: Lucas Stach <dev@lynxeye.de>
To: barebox@lists.infradead.org
Subject: [PATCH 06/24] AHCI: convert to streaming DMA ops
Date: Sun,  1 Mar 2015 14:17:04 +0100	[thread overview]
Message-ID: <1425215842-6982-7-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/ata/ahci.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 1894e47..e4310fc 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -31,7 +31,6 @@
 #include <linux/ctype.h>
 #include <linux/err.h>
 #include <disks.h>
-#include <asm/mmu.h>
 #include <ata_drive.h>
 #include <linux/sizes.h>
 #include <clock.h>
@@ -170,7 +169,11 @@ static int ahci_io(struct ahci_port *ahci_port, u8 *fis, int fis_len, void *rbuf
 		return -EIO;
 
 	if (wbuf)
-		dma_flush_range((unsigned long)wbuf, (unsigned long)wbuf + buf_len);
+		dma_sync_single_for_device((unsigned long)wbuf, buf_len,
+					   DMA_TO_DEVICE);
+	if (rbuf)
+		dma_sync_single_for_device((unsigned long)rbuf, buf_len,
+					   DMA_FROM_DEVICE);
 
 	memcpy((unsigned char *)ahci_port->cmd_tbl, fis, fis_len);
 
@@ -187,8 +190,12 @@ static int ahci_io(struct ahci_port *ahci_port, u8 *fis, int fis_len, void *rbuf
 	if (ret)
 		return -ETIMEDOUT;
 
+	if (wbuf)
+		dma_sync_single_for_cpu((unsigned long)wbuf, buf_len,
+					DMA_TO_DEVICE);
 	if (rbuf)
-		dma_inv_range((unsigned long)rbuf, (unsigned long)rbuf + buf_len);
+		dma_sync_single_for_cpu((unsigned long)rbuf, buf_len,
+					DMA_FROM_DEVICE);
 
 	return 0;
 }
-- 
2.1.0


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  parent reply	other threads:[~2015-03-01 13:18 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 ` Lucas Stach [this message]
2015-03-01 13:17 ` [PATCH 07/24] MCI: dw-mmc: convert to " 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 ` [PATCH 12/24] net: at91_ether: " Lucas Stach
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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