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linux/arch/arm/mm
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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
..
abort-ev4.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev4t.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev5t.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev5tj.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev6.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev7.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-lv4t.S ARM: entry: data abort: ensure r5 is preserved by abort functions 2011-07-02 10:56:12 +01:00
abort-macro.S ARM: 7088/1: entry: fix wrong parameter name used in do_thumb_abort 2011-09-10 23:39:56 +01:00
abort-nommu.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
alignment.c ARM: LPAE: Add fault handling support 2011-12-08 10:30:40 +00:00
cache-fa.S ARM: mm: cache-fa: Use the new processor struct macros 2011-07-07 15:31:05 +01:00
cache-feroceon-l2.c ARM: fix cache-feroceon-l2 after stack based kmap_atomic() 2010-12-19 12:57:16 -05:00
cache-l2x0.c ARM: 7162/1: errata: tidy up Kconfig options for PL310 errata workarounds 2011-11-21 13:12:18 +00:00
cache-tauros2.c
cache-v3.S ARM: mm: cache-v3: Use the new processor struct macros 2011-07-07 15:31:05 +01:00
cache-v4.S ARM: mm: cache-v4: Use the new processor struct macros 2011-07-07 15:31:06 +01:00
cache-v4wb.S ARM: mm: cache-v4wb: Use the new processor struct macros 2011-07-07 15:31:06 +01:00
cache-v4wt.S ARM: mm: cache-v4wt: Use the new processor struct macros 2011-07-07 15:31:06 +01:00
cache-v6.S ARM: mm: cache-v6: Use the new processor struct macros 2011-07-07 15:31:06 +01:00
cache-v7.S ARM: 7091/1: errata: D-cache line maintenance operation by MVA may not succeed 2011-09-17 12:47:17 +01:00
cache-xsc3l2.c ARM: fix cache-xsc3l2 after stack based kmap_atomic() 2010-12-19 12:57:08 -05:00
context.c ARM: LPAE: Add context switching support 2011-12-08 10:30:40 +00:00
copypage-fa.c
copypage-feroceon.c
copypage-v3.c
copypage-v4mc.c locking, ARM: Annotate low level hw locks as raw 2011-09-13 11:12:14 +02:00
copypage-v4wb.c
copypage-v4wt.c
copypage-v6.c locking, ARM: Annotate low level hw locks as raw 2011-09-13 11:12:14 +02:00
copypage-xsc3.c
copypage-xscale.c locking, ARM: Annotate low level hw locks as raw 2011-09-13 11:12:14 +02:00
dma-mapping.c ARM: 7172/1: dma: Drop GFP_COMP for DMA memory allocations 2011-11-26 21:58:53 +00:00
extable.c
fault-armv.c arm: remove several unnecessary module.h include instances 2011-10-31 19:30:48 -04:00
fault.c Merge branch 'devel-stable' into for-linus 2012-01-05 13:24:33 +00:00
fault.h ARM: LPAE: Add fault handling support 2011-12-08 10:30:40 +00:00
flush.c Merge branches 'consolidate', 'ep93xx', 'fixes', 'misc', 'mmci', 'remove' and 'spear' into for-linus 2011-05-23 19:27:40 +01:00
fsr-2level.c ARM: LPAE: Move the FSR definitions to separate files 2011-12-08 10:30:37 +00:00
fsr-3level.c ARM: LPAE: Add fault handling support 2011-12-08 10:30:40 +00:00
highmem.c ARM: get rid of kmap_high_l1_vipt() 2010-12-19 12:56:46 -05:00
idmap.c ARM: LPAE: Add identity mapping support for the 3-level page table format 2011-12-08 10:33:28 +00:00
init.c ARM: Add arm_memblock_steal() to allocate memory away from the kernel 2012-01-13 15:02:35 +00:00
iomap.c arm: switch to GENERIC_PCI_IOMAP 2011-11-28 21:13:06 +02:00
ioremap.c Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux into devel-stable 2011-12-08 18:02:04 +00:00
Kconfig Merge branch 'arm/common-kconfig-refactor+for-rmk' of git://git.linaro.org/people/dmart/linux-2.6-arm into devel-stable 2011-12-19 21:54:35 +00:00
Makefile ARM: v6k: introduce CPU_V6K option 2011-02-02 21:23:26 +00:00
mm.h ARM: add generic ioremap optimization by reusing static mappings 2011-11-26 19:21:28 -05:00
mmap.c ARM: 7169/1: topdown mmap support 2011-12-06 11:15:25 +00:00
mmu.c Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux into devel-stable 2011-12-08 18:02:04 +00:00
nommu.c Merge branch 'vmalloc' of git://git.linaro.org/people/nico/linux into devel-stable 2011-12-05 23:27:59 +00:00
pabort-legacy.S ARM: entry: prefetch abort: tail-call the main prefetch abort handler 2011-07-02 10:56:10 +01:00
pabort-v6.S ARM: entry: prefetch abort: tail-call the main prefetch abort handler 2011-07-02 10:56:10 +01:00
pabort-v7.S ARM: entry: prefetch abort: tail-call the main prefetch abort handler 2011-07-02 10:56:10 +01:00
pgd.c ARM: LPAE: Page table maintenance for the 3-level format 2011-12-08 10:30:39 +00:00
proc-arm6_7.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm7tdmi.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm9tdmi.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm720.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm740.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm920.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm922.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm925.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm926.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm940.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm946.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm1020.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm1020e.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm1022.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-arm1026.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-fa526.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-feroceon.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-macros.S ARM: LPAE: MMU setup for the 3-level page table format 2011-12-08 10:30:39 +00:00
proc-mohawk.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-sa110.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-sa1100.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-syms.c
proc-v6.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-v7-2level.S ARM: LPAE: Factor out classic-MMU specific code into proc-v7-2level.S 2011-12-08 10:30:37 +00:00
proc-v7-3level.S ARM: LPAE: MMU setup for the 3-level page table format 2011-12-08 10:30:39 +00:00
proc-v7.S Merge branch 'devel-stable' into for-linus 2012-01-05 13:24:33 +00:00
proc-xsc3.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
proc-xscale.S ARM: proc-*.S: place cpu_reset functions into .idmap.text section 2011-12-06 14:04:14 +00:00
tlb-fa.S Merge branch 'devel-stable' into for-next 2011-07-22 23:09:07 +01:00
tlb-v3.S ARM: mm: tlb-v3: Use the new processor struct macros 2011-07-07 15:31:11 +01:00
tlb-v4.S ARM: mm: tlb-v4: Use the new processor struct macros 2011-07-07 15:31:12 +01:00
tlb-v4wb.S ARM: mm: tlb-v4wb: Use the new processor struct macros 2011-07-07 15:31:12 +01:00
tlb-v4wbi.S ARM: mm: tlb-v4wbi: Use the new processor struct macros 2011-07-07 15:31:12 +01:00
tlb-v6.S Merge branch 'devel-stable' into for-next 2011-07-22 23:09:07 +01:00
tlb-v7.S Merge branch 'devel-stable' into for-next 2011-07-22 23:09:07 +01:00
vmregion.c ARM: DMA: top-down allocation in DMA coherent region 2011-02-23 17:24:11 +00:00
vmregion.h ARM: DMA coherent allocator: align remapped addresses 2010-07-27 10:43:48 +01:00