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* ARM: Convert platform reservations to use LMB rather than bootmemRussell King2010-07-271-2/+1
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: initial LMB trialRussell King2010-07-271-1/+1
| | | | | Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: Move platform memory reservations out of generic codeRussell King2010-07-161-1/+2
| | | | | | | Move the platform specific bootmem memory reservations out of arch/arm/mm/mmu.c into their respective platform files. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: Remove DISCONTIGMEM supportRussell King2010-07-161-3/+1
| | | | | | | Everything should now be using sparsemem rather than discontigmem, so remove the code supporting discontigmem from ARM. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: Move memory mapping into mmu.cRussell King2010-05-151-3/+0
| | | | | Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: Reduce __flush_dcache_page() visibilityRussell King2009-12-041-0/+2
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] fixmap supportNicolas Pitre2009-03-151-2/+1
| | | | | | | | | | | | | | | | | | | | | | This is the minimum fixmap interface expected to be implemented by architectures supporting highmem. We have a second level page table already allocated and covering 0xfff00000-0xffffffff because the exception vector page is located at 0xffff0000, and various cache tricks already use some entries above 0xffff0000. Therefore the PTEs covering 0xfff00000-0xfffeffff are free to be used. However the XScale cache flushing code already uses virtual addresses between 0xfffe0000 and 0xfffeffff. So this reserves the 0xfff00000-0xfffdffff range for fixmap stuff. The Documentation/arm/memory.txt information is updated accordingly, including the information about the actual top of DMA memory mapping region which didn't match the code. Signed-off-by: Nicolas Pitre <nico@marvell.com>
* [ARM] use asm/sections.hRussell King2008-12-011-2/+0
| | | | | | | | Update to use the asm/sections.h header rather than declaring these symbols ourselves. Change __data_start to _data to conform with the naming found within asm/sections.h. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] rationalize memory configuration code some moreNicolas Pitre2008-11-281-1/+1
| | | | | | | | | | | | | | | Currently there are two instances of struct meminfo: one in kernel/setup.c marked __initdata, and another in mm/init.c with permanent storage. Let's keep only the later to directly populate the permanent version from arm_add_memory(). Also move common validation tests between the MMU and non-MMU cases into arm_add_memory() to remove some duplication. Protection against overflowing the membank array is also moved in there in order to cover the kernel cmdline parsing path as well. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge branch 'ptebits' into develRussell King2008-10-091-1/+0
|\ | | | | | | | | | | Conflicts: arch/arm/Kconfig
| * [ARM] remove 'prot_pte_ext' from memory type tableRussell King2008-10-011-1/+0
| | | | | | | | | | | | | | This member is now redundant; the memory type is encoded in the Linux PTE bits. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ARM] clean up a load of old declarationsRussell King2008-09-061-0/+2
|/ | | | | | ... some of which are now in linux/*.h headers. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] mm 6: allow mem_types table to specify extended pte attributesRussell King2007-04-211-0/+1
| | | | | | | | Add prot_pte_ext to the mem_types table to allow the extended pte attributes to be passed to set_pte_ext(), thereby permitting us to specify memory type information for the hardware PTE entries. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] mm 5: Use mem_types table in ioremapRussell King2007-04-211-0/+9
| | | | | | | We really want to be using the memory type table in ioremap, so we only have to do the CPU type fixups in one place. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Fix nommu buildRussell King2006-11-301-0/+5
| | | | | | | Fix warnings and errors in arch/arm/mm for nommu build. Remove commented out function prototype in pgtable-nommu.h Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Move rest of MMU setup code from mm-armv.c to mmu.cRussell King2006-09-271-1/+0
| | | | | | | | | If we're going to have mmu.c for code which is specific to the MMU machines, we might as well move the other MMU initialisation specific code from mm-armv.c into this new file. This also allows us to make some functions static. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Split ARM MM initialisation for !mmuRussell King2006-09-271-0/+4
| | | | | | | Move the MMU specific code from init.c into mmu.c, and add nommu fixups to nommu.c Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Cleanup arch/arm/mm a littleRussell King2006-09-201-0/+19
Move top_pmd into arch/arm/mm/mm.h - nothing outside arch/arm/mm references it. Move the repeated definition of TOP_PTE into mm/mm.h, as well as a few function prototypes. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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