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File: [Development] / linux-2.6-xfs / arch / arm / mach-s3c2412 / dma.c (download)

Revision 1.3, Wed Sep 12 17:09:56 2007 UTC (10 years, 1 month ago) by tes.longdrop.melbourne.sgi.com
Branch: MAIN
Changes since 1.2: +4 -4 lines

Update 2.6.x-xfs to 2.6.23-rc4.

Also update fs/xfs with external mainline changes.
There were 12 such missing commits that I detected:

--------
commit ad690ef9e690f6c31f7d310b09ef1314bcec9033
Author: Al Viro <viro@ftp.linux.org.uk>
    xfs ioctl __user annotations

commit 20c2df83d25c6a95affe6157a4c9cac4cf5ffaac
Author: Paul Mundt <lethal@linux-sh.org>
    mm: Remove slab destructors from kmem_cache_create().

commit d0217ac04ca6591841e5665f518e38064f4e65bd
Author: Nick Piggin <npiggin@suse.de>
    mm: fault feedback #1

commit 54cb8821de07f2ffcd28c380ce9b93d5784b40d7
Author: Nick Piggin <npiggin@suse.de>
    mm: merge populate and nopage into fault (fixes nonlinear)

commit d00806b183152af6d24f46f0c33f14162ca1262a
Author: Nick Piggin <npiggin@suse.de>
    mm: fix fault vs invalidate race for linear mappings

commit a569425512253992cc64ebf8b6d00a62f986db3e
Author: Christoph Hellwig <hch@infradead.org>
    knfsd: exportfs: add exportfs.h header

commit 831441862956fffa17b9801db37e6ea1650b0f69
Author: Rafael J. Wysocki <rjw@sisk.pl>
    Freezer: make kernel threads nonfreezable by default

commit 8e1f936b73150f5095448a0fee6d4f30a1f9001d
Author: Rusty Russell <rusty@rustcorp.com.au>
    mm: clean up and kernelify shrinker registration

commit 5ffc4ef45b3b0a57872f631b4e4ceb8ace0d7496
Author: Jens Axboe <jens.axboe@oracle.com>
    sendfile: remove .sendfile from filesystems that use generic_file_sendfile()

commit 8bb7844286fb8c9fce6f65d8288aeb09d03a5e0d
Author: Rafael J. Wysocki <rjw@sisk.pl>
    Add suspend-related notifications for CPU hotplug

commit 59c51591a0ac7568824f541f57de967e88adaa07
Author: Michael Opdenacker <michael@free-electrons.com>
    Fix occurrences of "the the "

commit 0ceb331433e8aad9c5f441a965d7c681f8b9046f
Author: Dmitriy Monakhov <dmonakhov@openvz.org>
    mm: move common segment checks to separate helper function
--------
Merge of 2.6.x-xfs-melb:linux:29656b by kenmcd.

/* linux/arch/arm/mach-s3c2412/dma.c
 *
 * Copyright (c) 2006 Simtec Electronics
 *	Ben Dooks <ben@simtec.co.uk>
 *
 * S3C2412 DMA selection
 *
 * http://armlinux.simtec.co.uk/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
*/

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/sysdev.h>
#include <linux/serial_core.h>

#include <asm/dma.h>
#include <asm/arch/dma.h>
#include <asm/io.h>

#include <asm/plat-s3c24xx/dma.h>
#include <asm/plat-s3c24xx/cpu.h>

#include <asm/plat-s3c/regs-serial.h>
#include <asm/arch/regs-gpio.h>
#include <asm/plat-s3c/regs-ac97.h>
#include <asm/arch/regs-mem.h>
#include <asm/arch/regs-lcd.h>
#include <asm/arch/regs-sdi.h>
#include <asm/plat-s3c24xx/regs-iis.h>
#include <asm/plat-s3c24xx/regs-spi.h>

#define MAP(x) { (x)| DMA_CH_VALID, (x)| DMA_CH_VALID, (x)| DMA_CH_VALID, (x)| DMA_CH_VALID }

static struct s3c24xx_dma_map __initdata s3c2412_dma_mappings[] = {
	[DMACH_XD0] = {
		.name		= "xdreq0",
		.channels	= MAP(S3C2412_DMAREQSEL_XDREQ0),
	},
	[DMACH_XD1] = {
		.name		= "xdreq1",
		.channels	= MAP(S3C2412_DMAREQSEL_XDREQ1),
	},
	[DMACH_SDI] = {
		.name		= "sdi",
		.channels	= MAP(S3C2412_DMAREQSEL_SDI),
		.hw_addr.to	= S3C2410_PA_IIS + S3C2410_IISFIFO,
		.hw_addr.from	= S3C2410_PA_IIS + S3C2410_IISFIFO,
	},
	[DMACH_SPI0] = {
		.name		= "spi0",
		.channels	= MAP(S3C2412_DMAREQSEL_SPI0TX),
		.hw_addr.to	= S3C2410_PA_SPI + S3C2410_SPTDAT,
		.hw_addr.from	= S3C2410_PA_SPI + S3C2410_SPRDAT,
	},
	[DMACH_SPI1] = {
		.name		= "spi1",
		.channels	= MAP(S3C2412_DMAREQSEL_SPI1TX),
		.hw_addr.to	= S3C2410_PA_SPI + S3C2412_SPI1 + S3C2410_SPTDAT,
		.hw_addr.from	= S3C2410_PA_SPI + S3C2412_SPI1  + S3C2410_SPRDAT,
	},
	[DMACH_UART0] = {
		.name		= "uart0",
		.channels	= MAP(S3C2412_DMAREQSEL_UART0_0),
		.hw_addr.to	= S3C2410_PA_UART0 + S3C2410_UTXH,
		.hw_addr.from	= S3C2410_PA_UART0 + S3C2410_URXH,
	},
	[DMACH_UART1] = {
		.name		= "uart1",
		.channels	= MAP(S3C2412_DMAREQSEL_UART1_0),
		.hw_addr.to	= S3C2410_PA_UART1 + S3C2410_UTXH,
		.hw_addr.from	= S3C2410_PA_UART1 + S3C2410_URXH,
	},
      	[DMACH_UART2] = {
		.name		= "uart2",
		.channels	= MAP(S3C2412_DMAREQSEL_UART2_0),
		.hw_addr.to	= S3C2410_PA_UART2 + S3C2410_UTXH,
		.hw_addr.from	= S3C2410_PA_UART2 + S3C2410_URXH,
	},
	[DMACH_UART0_SRC2] = {
		.name		= "uart0",
		.channels	= MAP(S3C2412_DMAREQSEL_UART0_1),
		.hw_addr.to	= S3C2410_PA_UART0 + S3C2410_UTXH,
		.hw_addr.from	= S3C2410_PA_UART0 + S3C2410_URXH,
	},
	[DMACH_UART1_SRC2] = {
		.name		= "uart1",
		.channels	= MAP(S3C2412_DMAREQSEL_UART1_1),
		.hw_addr.to	= S3C2410_PA_UART1 + S3C2410_UTXH,
		.hw_addr.from	= S3C2410_PA_UART1 + S3C2410_URXH,
	},
      	[DMACH_UART2_SRC2] = {
		.name		= "uart2",
		.channels	= MAP(S3C2412_DMAREQSEL_UART2_1),
		.hw_addr.to	= S3C2410_PA_UART2 + S3C2410_UTXH,
		.hw_addr.from	= S3C2410_PA_UART2 + S3C2410_URXH,
	},
	[DMACH_TIMER] = {
		.name		= "timer",
		.channels	= MAP(S3C2412_DMAREQSEL_TIMER),
	},
	[DMACH_I2S_IN] = {
		.name		= "i2s-sdi",
		.channels	= MAP(S3C2412_DMAREQSEL_I2SRX),
		.hw_addr.from	= S3C2410_PA_IIS + S3C2410_IISFIFO,
	},
	[DMACH_I2S_OUT] = {
		.name		= "i2s-sdo",
		.channels	= MAP(S3C2412_DMAREQSEL_I2STX),
		.hw_addr.to	= S3C2410_PA_IIS + S3C2410_IISFIFO,
	},
	[DMACH_USB_EP1] = {
		.name		= "usb-ep1",
		.channels	= MAP(S3C2412_DMAREQSEL_USBEP1),
	},
	[DMACH_USB_EP2] = {
		.name		= "usb-ep2",
		.channels	= MAP(S3C2412_DMAREQSEL_USBEP2),
	},
	[DMACH_USB_EP3] = {
		.name		= "usb-ep3",
		.channels	= MAP(S3C2412_DMAREQSEL_USBEP3),
	},
	[DMACH_USB_EP4] = {
		.name		= "usb-ep4",
		.channels	= MAP(S3C2412_DMAREQSEL_USBEP4),
	},
};

static void s3c2412_dma_select(struct s3c2410_dma_chan *chan,
			       struct s3c24xx_dma_map *map)
{
	writel(map->channels[0] | S3C2412_DMAREQSEL_HW,
	       chan->regs + S3C2412_DMA_DMAREQSEL);
}

static struct s3c24xx_dma_selection __initdata s3c2412_dma_sel = {
	.select		= s3c2412_dma_select,
	.dcon_mask	= 0,
	.map		= s3c2412_dma_mappings,
	.map_size	= ARRAY_SIZE(s3c2412_dma_mappings),
};

static int s3c2412_dma_add(struct sys_device *sysdev)
{
	s3c2410_dma_init();
	return s3c24xx_dma_init_map(&s3c2412_dma_sel);
}

static struct sysdev_driver s3c2412_dma_driver = {
	.add	= s3c2412_dma_add,
};

static int __init s3c2412_dma_init(void)
{
	return sysdev_driver_register(&s3c2412_sysclass, &s3c2412_dma_driver);
}

arch_initcall(s3c2412_dma_init);