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2011-07-12ARM: dma: replace ISA_DMA_THRESHOLD with a variableRussell King1-0/+6
ISA_DMA_THRESHOLD has been unused by non-arch code, so lets now get rid of it from ARM by replacing it with arm_dma_zone_mask. Move dma_supported() and dma_set_mask() out of line, and have dma_supported() check this new variable instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-26ARM: kill pmd_off()Russell King1-6/+1
pmd_off() has only one user, so lets consolidate this into its only user. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-21ARM: pgtable: add pud-level codeRussell King1-1/+1
Add pud_offset() et.al. between the pgd and pmd code in preparation of using pgtable-nopud.h rather than 4level-fixup.h. This incorporates a fix from Jamie Iles <jamie@jamieiles.com> for uaccess_with_memcpy.c. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-26ARM: pgtable: introduce pteval_t to represent a pte valueRussell King1-1/+1
This makes everywhere dealing with pte values use the same type. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-27ARM: Convert platform reservations to use LMB rather than bootmemRussell King1-2/+1
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-27ARM: initial LMB trialRussell King1-1/+1
Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-16ARM: Move platform memory reservations out of generic codeRussell King1-1/+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>
2010-07-16ARM: Remove DISCONTIGMEM supportRussell King1-3/+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>
2010-05-15ARM: Move memory mapping into mmu.cRussell King1-3/+0
Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-04ARM: Reduce __flush_dcache_page() visibilityRussell King1-0/+2
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-15[ARM] fixmap supportNicolas Pitre1-2/+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>
2008-12-01[ARM] use asm/sections.hRussell King1-2/+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>
2008-11-28[ARM] rationalize memory configuration code some moreNicolas Pitre1-1/+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>
2008-10-09Merge branch 'ptebits' into develRussell King1-1/+0
Conflicts: arch/arm/Kconfig
2008-10-01[ARM] remove 'prot_pte_ext' from memory type tableRussell King1-1/+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>
2008-09-06[ARM] clean up a load of old declarationsRussell King1-0/+2
... some of which are now in linux/*.h headers. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-04-21[ARM] mm 6: allow mem_types table to specify extended pte attributesRussell King1-0/+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>
2007-04-21[ARM] mm 5: Use mem_types table in ioremapRussell King1-0/+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>
2006-11-30[ARM] Fix nommu buildRussell King1-0/+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>
2006-09-27[ARM] Move rest of MMU setup code from mm-armv.c to mmu.cRussell King1-1/+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>
2006-09-27[ARM] Split ARM MM initialisation for !mmuRussell King1-0/+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>
2006-09-20[ARM] Cleanup arch/arm/mm a littleRussell King1-0/+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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