linux/arch/arm64/mm
Mark Rutland cdef5f6e9e arm64: mm: allocate pagetables anywhere
Now that create_mapping uses fixmap slots to modify pte, pmd, and pud
entries, we can access page tables anywhere in physical memory,
regardless of the extent of the linear mapping.

Given that, we no longer need to limit memblock allocations during page
table creation, and can leave the limit as its default
MEMBLOCK_ALLOC_ANYWHERE.

We never add memory which will fall outside of the linear map range
given phys_offset and MAX_MEMBLOCK_ADDR are configured appropriately, so
any tables we create will fall in the linear map of the final tables.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Tested-by: Jeremy Linton <jeremy.linton@arm.com>
Cc: Laura Abbott <labbott@fedoraproject.org>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-02-16 15:10:46 +00:00
..
cache.S arm64: Use PoU cache instr for I/D coherency 2015-12-17 11:07:13 +00:00
context.c arm64: mm: keep reserved ASIDs in sync with mm after multiple rollovers 2015-11-26 15:27:10 +00:00
copypage.c arm64: Defer dcache flush in __cpu_copy_user_page 2015-12-17 11:07:13 +00:00
dma-mapping.c arm64: add __init/__initdata section marker to some functions/variables 2015-12-02 12:17:11 +00:00
dump.c arm64: Fix an enum typo in mm/dump.c 2016-01-25 11:53:03 +00:00
extable.c arm64: MMU fault handling and page table management 2012-09-17 13:41:57 +01:00
fault.c arm64: mm: fix fault_info table xFSC decoding 2015-11-25 15:49:16 +00:00
flush.c arm64, thp: remove infrastructure for handling splitting PMDs 2016-01-15 17:56:32 -08:00
hugetlbpage.c arm64: hugetlb: add support for PTE contiguous bit 2015-12-21 17:26:00 +00:00
init.c Merge branch 'aarch64/efi' into aarch64/for-next/core 2015-12-15 10:59:03 +00:00
ioremap.c arm64: add ioremap physical address information 2015-01-23 15:29:06 +00:00
kasan_init.c arm64: kasan: avoid TLB conflicts 2016-02-16 15:10:45 +00:00
Makefile arm64: add KASAN support 2015-10-12 17:46:36 +01:00
mm.h arm64: add better page protections to arm64 2015-01-22 14:54:29 +00:00
mmap.c arm64: mm: support ARCH_MMAP_RND_BITS 2016-01-14 16:00:49 -08:00
mmu.c arm64: mm: allocate pagetables anywhere 2016-02-16 15:10:46 +00:00
pageattr.c arm64: allow vmalloc regions to be set with set_memory_* 2016-02-02 15:42:15 +00:00
pgd.c arm64: mm: move pgd_cache initialisation to pgtable_cache_init 2016-01-05 15:43:10 +00:00
proc-macros.S arm64: kernel: fix architected PMU registers unconditional access 2016-01-25 11:09:06 +00:00
proc.S arm64: mm: add code to safely replace TTBR1_EL1 2016-02-16 15:10:45 +00:00