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dde5828f56
linux/arch/arm
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Russell King dde5828f56 ARM: Fix broken highmem support 
Currently, highmem is selectable, and you can request an increased
vmalloc area.  However, none of this has any effect on the memory
layout since a patch in the highmem series was accidentally dropped.
Moreover, even if you did want highmem, all memory would still be
registered as lowmem, possibly resulting in overflow of the available
virtual mapping space.

The highmem boundary is determined by the highest allowed beginning
of the vmalloc area, which depends on its configurable minimum size
(see commit 60296c71f6 for details on
this).

We should create mappings and initialize bootmem only for low memory,
while the zone allocator must still be told about highmem.

Currently, memory nodes which are completely located in high memory
are not supported.  This is not a huge limitation since systems
relying on highmem support are unlikely to have discontiguous memory
with large holes.

[ A similar patch was meant to be merged before commit 5f0fbf9eca
  and be available  in Linux v2.6.30, however some git rebase screw-up
  of mine dropped the first commit of the series, and that goofage
  escaped testing somehow as well. -- Nico ]

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Nicolas Pitre <nico@marvell.com>
2009-08-15 12:36:00 +01:00
..
boot ARM: includecheck fix: misc.c 2009-07-25 17:07:00 +01:00
common ARM: 5639/1: arm: clkdev.c should include <linux/clk.h> 2009-08-05 22:06:58 +01:00
configs Merge branch 'omap-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2009-08-10 14:23:29 +01:00
include/asm ARM: Fix broken highmem support 2009-08-15 12:36:00 +01:00
kernel ARM: 5638/1: arch/arm/kernel/signal.c: use correct address space for CRUNCH 2009-08-05 22:06:58 +01:00
lib Merge branch 'copy_user' of git://git.marvell.com/orion into devel 2009-06-14 10:59:32 +01:00
mach-aaec2000 [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-at91 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2009-07-30 16:46:31 -07:00
mach-clps711x [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-davinci ARM: includecheck fix: board-sffsdr.c 2009-07-25 17:07:02 +01:00
mach-ebsa110 [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-ep93xx [ARM] 5611/1: ep93xx: update ts72xx nor flash support 2009-07-23 10:21:24 +01:00
mach-footbridge [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-gemini Gemini: Fix SRAM/ROM location after memory swap 2009-05-28 16:42:25 +03:00
mach-h720x [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-integrator [ARM] 5517/1: integrator: don't put clock lookups in __initdata 2009-05-18 17:43:16 +01:00
mach-iop13xx dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64) 2009-04-07 08:31:10 -07:00
mach-iop32x [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-iop33x [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-ixp4xx IXP4xx: Fix IO_SPACE_LIMIT for 2.6.31-rc core PCI changes 2009-08-11 19:22:20 +02:00
mach-ixp23xx [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-ixp2000 [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-kirkwood [ARM] Kirkwood: Correct header define 2009-07-06 23:54:56 -04:00
mach-ks8695 ARM: 5637/1: [KS8695] Don't reference CLOCK_TICK_RATE in drivers 2009-08-05 22:06:56 +01:00
mach-l7200 [ARM] mach-l7200: fix spelling of SYS_CLOCK_OFF 2009-05-18 11:25:08 +01:00
mach-lh7a40x [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-loki [ARM] add coherent DMA mask for mv643xx_eth 2009-05-22 17:05:53 -04:00
mach-mmp [ARM] pxa: add PWM devices support for pxa168/910 2009-06-05 10:32:06 +08:00
mach-msm clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
mach-mv78xx0 [ARM] orion: convert gpio to use gpiolib 2009-06-08 13:04:57 -04:00
mach-mx1 mx1ads: rename mxc_map_io to mx1_map_io 2009-05-07 16:20:22 +02:00
mach-mx2 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2009-06-14 13:42:43 -07:00
mach-mx3 ARM: add support for the EET board, based on the i.MX31 pcm037 module 2009-06-23 14:25:26 +02:00
mach-netx [ARM] VIC: Add power management device 2009-05-07 11:04:57 +01:00
mach-ns9xxx clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
mach-omap1 ARM: includecheck fix: mach-omap1/mcbsp.c 2009-07-25 17:08:22 +01:00
mach-omap2 Merge branch 'pm-upstream/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm 2009-08-10 15:50:27 +01:00
mach-orion5x [ARM] orion5x: register the crypto device on SOCs that support it 2009-06-15 00:37:08 -04:00
mach-pnx4008 [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-pxa Merge branch 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 2009-07-30 10:46:12 +01:00
mach-realview ARM: Realview & Versatile: Fix i2c_board_info definitions 2009-07-18 17:08:59 +01:00
mach-rpc [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-s3c24a0/include/mach [ARM] S3C: Make IRQ_EINT sleep control common 2009-03-08 12:35:36 +00:00
mach-s3c2400 [ARM] S3C24XX: GPIO: Fix error returns from gpio functions 2009-05-18 19:40:18 +01:00
mach-s3c2410 S3C24XX: GPIO: Fix pin range check in s3c_gpiolib_getchip 2009-07-29 23:47:14 +01:00
mach-s3c2412 Merge branch for-rmk-devel of git://aeryn.fluff.org.uk/bjdooks/linux into devel 2009-06-10 22:41:06 +01:00
mach-s3c2440 [ARM] MINI2440: Add missing flash_bbt flat to NAND 2009-06-23 18:23:27 +01:00
mach-s3c2442 [ARM] GTA02: build fixes (s3c2410_nand_set usage) 2009-06-24 00:10:46 +01:00
mach-s3c2443 [ARM] S3C24XX: DMA: Split hardware regs out of <mach/dma.h> 2009-05-01 11:39:06 +01:00
mach-s3c6400 Merge branch for-rmk-devel of git://aeryn.fluff.org.uk/bjdooks/linux into devel 2009-06-10 22:41:06 +01:00
mach-s3c6410 [ARM] SMDK6410: Add USB high-speed/OtG gadget device 2009-05-16 22:14:09 +01:00
mach-sa1100 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-06-14 13:46:25 -07:00
mach-shark [ARM] pass reboot command line to arch_reset() 2009-03-19 16:20:24 +00:00
mach-stmp37xx [ARM] 5539/1: Freescale STMP: onboard devices declaration 2009-06-04 14:16:45 +01:00
mach-stmp378x [ARM] 5539/1: Freescale STMP: onboard devices declaration 2009-06-04 14:16:45 +01:00
mach-u300 [ARM] 5594/1: Correct U300 VIC init PM setting 2009-07-09 16:15:46 +01:00
mach-versatile ARM: Realview & Versatile: Fix i2c_board_info definitions 2009-07-18 17:08:59 +01:00
mach-w90x900 [ARM] 5549/1: Add clock api for w90p910 platform. 2009-06-11 14:45:18 +01:00
mm ARM: Fix broken highmem support 2009-08-15 12:36:00 +01:00
nwfpe [ARM] nwfpe: fix 'floatx80_is_nan' sparse warning 2009-05-15 12:49:14 +01:00
oprofile RealView: Move the IRQ_* definitions out of the board-*.h files 2009-05-30 14:00:17 +01:00
plat-iop dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
plat-mxc pcm037: add MT9T031 camera support 2009-06-23 14:25:26 +02:00
plat-omap Merge branch 'pm-upstream/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm 2009-08-10 15:50:27 +01:00
plat-orion [ARM] Orion/Kirkwood: rename orion5x_wdt to orion_wdt 2009-06-08 13:05:00 -04:00
plat-pxa [ARM] pxa: use kzalloc() in pxa_init_gpio_chip() 2009-07-03 14:17:51 +08:00
plat-s3c [ARM] S3C: Fix S3C24XX build to not include s3c64xx IIS devices 2009-06-23 16:34:35 +01:00
plat-s3c24xx ARM: S3C: PWM fix for low duty cycle 2009-07-30 23:54:50 +01:00
plat-s3c64xx Merge branch 's3c-fixes-rc4' of git://aeryn.fluff.org.uk/bjdooks/linux 2009-07-30 10:47:55 +01:00
plat-stmp3xxx ARM: includecheck fix: plat-stmp3xxx/pinmux.c 2009-07-25 17:08:24 +01:00
tools [ARM] Update mach-types 2009-06-20 22:28:41 +01:00
vfp Fix the VFP handling on the Feroceon CPU 2009-05-30 14:00:18 +01:00
Kconfig [ARM] S3C64XX: Initial support for DVFS 2009-06-16 23:36:24 +01:00
Kconfig-nommu
Kconfig.debug [ARM] S3C: Remove unused CONFIG_DEBUG_S3C_PORT 2009-06-23 12:24:07 +01:00
Makefile Merge branch 'u300' into devel 2009-06-14 11:01:44 +01:00