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From: Lucas Stach <dev@lynxeye.de>
To: barebox@lists.infradead.org
Subject: [PATCH 23/24] ARM: bcm2835: mbox: convert to streaming DMA ops
Date: Sun,  1 Mar 2015 14:17:21 +0100	[thread overview]
Message-ID: <1425215842-6982-24-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>
---
 arch/arm/mach-bcm2835/mbox.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-bcm2835/mbox.c b/arch/arm/mach-bcm2835/mbox.c
index 1a80771..9d69bc8 100644
--- a/arch/arm/mach-bcm2835/mbox.c
+++ b/arch/arm/mach-bcm2835/mbox.c
@@ -7,9 +7,9 @@
  */
 
 #include <asm/io.h>
-#include <asm/mmu.h>
 #include <common.h>
 #include <clock.h>
+#include <dma.h>
 
 #include <mach/mbox.h>
 
@@ -55,7 +55,8 @@ static int bcm2835_mbox_call_raw(u32 chan, struct bcm2835_mbox_hdr *buffer,
 	/* Send the request */
 	val = BCM2835_MBOX_PACK(chan, send);
 	debug("mbox: TX raw: 0x%08x\n", val);
-	dma_flush_range(send, send + buffer->buf_size);
+	dma_sync_single_for_device((unsigned long)send, buffer->buf_size,
+				   DMA_BIDIRECTIONAL);
 	writel(val, &regs->write);
 
 	/* Wait for the response */
@@ -72,7 +73,8 @@ static int bcm2835_mbox_call_raw(u32 chan, struct bcm2835_mbox_hdr *buffer,
 	/* Read the response */
 	val = readl(&regs->read);
 	debug("mbox: RX raw: 0x%08x\n", val);
-	dma_inv_range(send, send + buffer->buf_size);
+	dma_sync_single_for_cpu((unsigned long)send, buffer->buf_size,
+				DMA_BIDIRECTIONAL);
 
 	/* Validate the response */
 	if (BCM2835_MBOX_UNPACK_CHAN(val) != chan) {
-- 
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 ` [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 ` Lucas Stach [this message]
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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