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716a3dc200
linux/arch/arm
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Russell King 716a3dc200 ARM: Add arm_memblock_steal() to allocate memory away from the kernel 
Several platforms are now using the memblock_alloc+memblock_free+
memblock_remove trick to obtain memory which won't be mapped in the
kernel's page tables.  Most platforms do this (correctly) in the
->reserve callback.  However, OMAP has started to call these functions
outside of this callback, and this is extremely unsafe - memory will
not be unmapped, and could well be given out after memblock is no
longer responsible for its management.

So, provide arm_memblock_steal() to perform this function, and ensure
that it panic()s if it is used inappropriately.  Convert everyone
over, including OMAP.

As a result, OMAP with OMAP4_ERRATA_I688 enabled will panic on boot
with this change.  Mark this option as BROKEN and make it depend on
BROKEN.  OMAP needs to be fixed, or 137d105d50 (ARM: OMAP4: Fix
errata i688 with MPU interconnect barriers.) reverted until such
time it can be fixed correctly.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-13 15:02:35 +00:00
..
boot power management changes for omap and imx 2012-01-09 14:39:59 -08:00
common Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
configs SH/R-Mobile updates for 3.3 merge window. 2012-01-11 23:29:20 -08:00
include/asm ARM: Add arm_memblock_steal() to allocate memory away from the kernel 2012-01-13 15:02:35 +00:00
kernel Merge branch 'master' into fixes 2012-01-13 15:00:22 +00:00
lib ARM: lib: add call_with_stack function for safely changing stack 2011-12-12 16:07:35 +00:00
mach-at91 Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-bcmring Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core 2012-01-07 12:03:30 -08:00
mach-clps711x Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-cns3xxx Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-davinci MTD pull for 3.3 2012-01-10 13:45:22 -08:00
mach-dove Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-ebsa110 Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-ep93xx Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-exynos Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq 2012-01-11 18:53:33 -08:00
mach-footbridge Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-gemini ARM: big removal of now unused vmalloc.h files 2011-11-26 19:21:29 -05:00
mach-h720x Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-highbank Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-imx ARM: Add arm_memblock_steal() to allocate memory away from the kernel 2012-01-13 15:02:35 +00:00
mach-integrator Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-iop13xx Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-iop32x Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-iop33x Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-ixp4xx Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-ixp23xx Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-ixp2000 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-kirkwood Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-ks8695 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-l7200/include/mach
mach-lpc32xx Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core 2012-01-07 12:03:30 -08:00
mach-mmp Merge branch 'samsung/driver' into next/drivers 2012-01-09 16:16:29 +00:00
mach-msm timer changes for msm 2012-01-09 14:40:48 -08:00
mach-mv78xx0 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-mx5 power management changes for omap and imx 2012-01-09 14:39:59 -08:00
mach-mxs clock management changes for i.MX 2012-01-09 14:44:15 -08:00
mach-netx Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-nomadik Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-omap1 New feature development 2012-01-09 14:38:51 -08:00
mach-omap2 ARM: Add arm_memblock_steal() to allocate memory away from the kernel 2012-01-13 15:02:35 +00:00
mach-orion5x Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-picoxcell New feature development 2012-01-09 14:38:51 -08:00
mach-pnx4008 Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-prima2 Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-pxa Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound 2012-01-12 08:00:30 -08:00
mach-realview Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core 2012-01-07 12:03:30 -08:00
mach-rpc Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-s3c64xx Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound 2012-01-12 08:00:30 -08:00
mach-s3c2410 Device tree conversions for samsung and tegra 2012-01-09 14:28:38 -08:00
mach-s3c2412 Device tree conversions for samsung and tegra 2012-01-09 14:28:38 -08:00
mach-s3c2416 Cleanups for the Samsung platforms 2012-01-09 14:30:28 -08:00
mach-s3c2440 Board-level changes 2012-01-09 14:37:41 -08:00
mach-s3c2443 Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core 2012-01-07 12:03:30 -08:00
mach-s5p64x0 Driver specific changes 2012-01-09 14:39:22 -08:00
mach-s5pc100 Cleanups for the Samsung platforms 2012-01-09 14:30:28 -08:00
mach-s5pv210 Cleanups for the Samsung platforms 2012-01-09 14:30:28 -08:00
mach-sa1100 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-shark Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-shmobile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound 2012-01-12 08:00:30 -08:00
mach-spear3xx Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-spear6xx Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-tegra Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound 2012-01-12 08:00:30 -08:00
mach-u300 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl 2012-01-10 10:19:57 -08:00
mach-ux500 New feature development 2012-01-09 14:38:51 -08:00
mach-versatile Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-vexpress Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core 2012-01-07 12:03:30 -08:00
mach-vt8500 ARM: big removal of now unused vmalloc.h files 2011-11-26 19:21:29 -05:00
mach-w90x900 Merge branch 'master' into fixes 2012-01-13 15:00:22 +00:00
mach-zynq Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mm ARM: Add arm_memblock_steal() to allocate memory away from the kernel 2012-01-13 15:02:35 +00:00
nwfpe ARM: 7207/1: Use generic ARM instruction set condition code checks for nwfpe. 2011-12-13 08:52:02 +00:00
oprofile oprofile, arm/sh: Fix oprofile_arch_exit() linkage issue 2011-12-23 11:58:34 +01:00
plat-iop Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
plat-mxc power management changes for omap and imx 2012-01-09 14:39:59 -08:00
plat-nomadik ARM: 7205/2: sched_clock: allow sched_clock to be selected at runtime 2011-12-18 23:00:26 +00:00
plat-omap ARM: Add arm_memblock_steal() to allocate memory away from the kernel 2012-01-13 15:02:35 +00:00
plat-orion New feature development 2012-01-09 14:38:51 -08:00
plat-pxa Merge branches 'drivers/macb-gem' and 'drivers/pxa-gpio' into next/drivers 2011-11-23 20:47:41 +00:00
plat-s3c24xx Merge branch 'master' into fixes 2012-01-13 15:00:22 +00:00
plat-s5p Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core 2012-01-07 12:03:30 -08:00
plat-samsung Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2012-01-10 10:55:52 -08:00
plat-spear Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
plat-versatile ARM: 7205/2: sched_clock: allow sched_clock to be selected at runtime 2011-12-18 23:00:26 +00:00
tools ARM: Update mach-types 2011-12-23 22:58:10 +00:00
vfp
Kconfig lib: use generic pci_iomap on all architectures 2012-01-10 18:04:27 -08:00
Kconfig-nommu
Kconfig.debug Merge branches 'at91/gpio', 'at91/ioremap', 'drivers/macb-gem-cleanup' and 'msm/misc' into next/cleanup 2011-12-01 12:34:21 +00:00
Makefile arm: Remove TCC subarch from Kconfig/Makefile 2012-01-05 13:33:59 +01:00