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Russell King 1522ac3ec9 [ARM] Fix virtual to physical translation macro corner cases 
The current use of these macros works well when the conversion is
entirely linear.  In this case, we can be assured that the following
holds true:

	__va(p + s) - s = __va(p)

However, this is not always the case, especially when there is a
non-linear conversion (eg, when there is a 3.5GB hole in memory.)
In this case, if 's' is the size of the region (eg, PAGE_SIZE) and
'p' is the final page, the above is most definitely not true.

So, we must ensure that __va() and __pa() are only used with valid
kernel direct mapped RAM addresses.  This patch tweaks the code
to achieve this.

Tested-by: Charles Moschel <fred99@carolina.rr.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 		2009-03-12 23:09:09 +00:00
..
boot Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel 2008-12-02 22:07:40 +00:00
common [ARM] clkdev: fix clock matching 2009-01-24 11:41:20 +00:00
configs [ARM] 5390/1: AT91: Watchdog fixes 2009-02-14 16:01:57 +00:00
include/asm byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
kernel [ARM] 5421/1: ftrace: fix crash due to tracing of __naked functions 2009-03-12 21:33:03 +00:00
lib Merge branch 'clps7500' into devel 2008-11-27 12:39:43 +00:00
mach-aaec2000 arm: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:43 -08:00
mach-at91 [ARM] at91: fix for Atmel AT91 powersaving 2009-02-22 22:37:21 +00:00
mach-clps711x [ARM] clps711x: fix warning in edb7211-mm.c 2009-01-08 16:29:42 +00:00
mach-davinci usb: musb: make Davinci *work* in mainline 2009-02-27 14:40:51 -08:00
mach-ebsa110 [ARM] Hide ISA DMA API when ISA_DMA_API is unset 2008-11-29 18:42:40 +00:00
mach-ep93xx [ARM] 5419/1: ep93xx: fix build warnings about struct i2c_board_info 2009-03-05 17:05:22 +00:00
mach-footbridge Merge branch 'devel' 2009-01-08 22:01:49 +00:00
mach-h720x [ARM] fix AT91, davinci, h720x, ks8695, msm, mx2, mx3, netx, omap1, omap2, pxa, s3c 2009-01-08 16:29:42 +00:00
mach-imx [ARM] i.MX add missing include 2009-01-12 12:14:40 +01:00
mach-integrator libata-sff: fix incorrect EH message 2009-01-26 06:36:16 -05:00
mach-iop13xx [ARM] Hide ISA DMA API when ISA_DMA_API is unset 2008-11-29 18:42:40 +00:00
mach-iop32x [ARM] Hide ISA DMA API when ISA_DMA_API is unset 2008-11-29 18:42:40 +00:00
mach-iop33x [ARM] fix missing includes for iop33x and sa1100_ir 2008-12-01 23:01:19 +00:00
mach-ixp4xx Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-02 11:44:09 -08:00
mach-ixp23xx [ARM] Hide ISA DMA API when ISA_DMA_API is unset 2008-11-29 18:42:40 +00:00
mach-ixp2000 [ARM] Hide ISA DMA API when ISA_DMA_API is unset 2008-11-29 18:42:40 +00:00
mach-kirkwood [ARM] 5401/1: Orion: fix edge triggered GPIO interrupt support 2009-02-17 22:37:09 +00:00
mach-ks8695 [ARM] fix AT91, davinci, h720x, ks8695, msm, mx2, mx3, netx, omap1, omap2, pxa, s3c 2009-01-08 16:29:42 +00:00
mach-l7200 [ARM] Add a common typesafe __io implementation 2008-11-30 11:45:54 +00:00
mach-lh7a40x arm: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:43 -08:00
mach-loki [ARM] Hide ISA DMA API when ISA_DMA_API is unset 2008-11-29 18:42:40 +00:00
mach-msm [ARM] msm: fix build errors 2009-01-28 10:19:52 +00:00
mach-mv78xx0 [ARM] 5401/1: Orion: fix edge triggered GPIO interrupt support 2009-02-17 22:37:09 +00:00
mach-mx1 MX1 fix include 2009-03-06 17:28:10 +01:00
mach-mx2 [ARM] fix AT91, davinci, h720x, ks8695, msm, mx2, mx3, netx, omap1, omap2, pxa, s3c 2009-01-08 16:29:42 +00:00
mach-mx3 [ARM] fix AT91, davinci, h720x, ks8695, msm, mx2, mx3, netx, omap1, omap2, pxa, s3c 2009-01-08 16:29:42 +00:00
mach-netx [ARM] fix netx 2009-01-08 16:29:44 +00:00
mach-ns9xxx Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-02 11:44:09 -08:00
mach-omap1 ARM: OMAP: Fix hsmmc init, v2 2009-01-29 08:57:16 -08:00
mach-omap2 ARM: OMAP: board-omap3beagle: set i2c-3 to 100kHz 2009-03-04 10:07:42 -08:00
mach-orion5x [ARM] orion5x: pass dram mbus data to xor driver 2009-03-03 17:59:43 -05:00
mach-pnx4008 [ARM] fix pnx4008 2009-01-08 16:29:43 +00:00
mach-pxa [ARM] pxa: stop and disable IRQ for each DMA channels at startup 2009-01-21 11:29:19 +08:00
mach-realview [ARM] Fix realview build 2009-01-08 16:29:41 +00:00
mach-rpc Add i2c_board_info for RiscPC PCF8583 2009-02-24 19:19:50 +01:00
mach-s3c24a0/include/mach [ARM] S3C24A0: Remove duplicate <mach/io.h> file 2008-12-18 16:35:59 +00:00
mach-s3c2400 [ARM] remove a common set of __virt_to_bus definitions 2008-11-28 15:36:49 +00:00
mach-s3c2410 [ARM] fix AT91, davinci, h720x, ks8695, msm, mx2, mx3, netx, omap1, omap2, pxa, s3c 2009-01-08 16:29:42 +00:00
mach-s3c2412 [ARM] S3C: Remove unnecessary <linux/delay.h> includes 2008-12-18 16:36:02 +00:00
mach-s3c2440 [ARM] 5358/1: AT2440EVB: Use new include path of mci.h 2009-01-08 16:29:41 +00:00
mach-s3c2442 [ARM] Arrange for platforms to select appropriate CPU support 2008-11-27 12:38:00 +00:00
mach-s3c2443 [ARM] S3C: Remove unnecessary <linux/delay.h> includes 2008-12-18 16:36:02 +00:00
mach-s3c6400 [ARM] fix AT91, davinci, h720x, ks8695, msm, mx2, mx3, netx, omap1, omap2, pxa, s3c 2009-01-08 16:29:42 +00:00
mach-s3c6410 [ARM] SMDK6410: Declare iodesc table static 2009-02-26 23:21:49 +00:00
mach-sa1100 rename platform_driver name "flash" to "sa1100-mtd" 2009-01-31 01:21:58 +01:00
mach-shark [ARM] Rename ISA mach/dma.h header to mach/isa-dma.h 2008-11-29 18:49:55 +00:00
mach-versatile arm: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:43 -08:00
mach-w90x900 [ARM] w90x900: fix build errors and warnings 2009-01-12 13:51:03 +00:00
mm [ARM] Fix virtual to physical translation macro corner cases 2009-03-12 23:09:09 +00:00
nwfpe [ARM] Convert asm/uaccess.h to linux/uaccess.h 2008-09-06 11:35:55 +01:00
oprofile cpumask: make irq_set_affinity() take a const struct cpumask 2008-12-13 21:20:26 +10:30
plat-iop [ARM] iop: iop3xx needs registers mapped uncached+unbuffered 2008-11-09 11:18:36 +00:00
plat-mxc mmc: Add a MX2/MX3 specific SDHC driver 2009-02-02 20:57:05 +01:00
plat-omap ARM: OMAP: Allow I2C bus driver to be compiled as a module 2009-03-04 10:07:41 -08:00
plat-orion [ARM] 5401/1: Orion: fix edge triggered GPIO interrupt support 2009-02-17 22:37:09 +00:00
plat-s3c [ARM] fix AT91, davinci, h720x, ks8695, msm, mx2, mx3, netx, omap1, omap2, pxa, s3c 2009-01-08 16:29:42 +00:00
plat-s3c24xx [ARM] fix AT91, davinci, h720x, ks8695, msm, mx2, mx3, netx, omap1, omap2, pxa, s3c 2009-01-08 16:29:42 +00:00
plat-s3c64xx Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into s3c-fixes 2009-03-06 17:13:52 +00:00
tools [ARM] update mach-types 2009-03-12 21:33:06 +00:00
vfp [ARM] 5349/1: VFP: Add PM code to save and restore current VFP state 2008-12-18 21:21:34 +00:00
Kconfig Staging: Kconfig for ARCH=arm,8300, cris 2009-01-06 13:51:38 -08:00
Kconfig-nommu [ARM] 4532/1: allow configuration of processor ID 2007-10-12 23:43:02 +01:00
Kconfig.debug [ARM] CONFIG_DEBUG_STACK_USAGE 2008-01-26 14:50:06 +00:00
Makefile Merge branch 'next-merged' of git://aeryn.fluff.org.uk/bjdooks/linux into devel 2008-12-18 22:15:30 +00:00