linux/arch/arm64/mm
Ard Biesheuvel 157962f5a8 arm64: decouple early fixmap init from linear mapping
Since the early fixmap page tables are populated using pages that are
part of the static footprint of the kernel, they are covered by the
initial kernel mapping, and we can refer to them without using __va/__pa
translations, which are tied to the linear mapping.

Since the fixmap page tables are disjoint from the kernel mapping up
to the top level pgd entry, we can refer to bm_pte[] directly, and there
is no need to walk the page tables and perform __pa()/__va() translations
at each step.

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-02-18 18:16:34 +00:00
..
cache.S arm64: Use PoU cache instr for I/D coherency 2015-12-17 11:07:13 +00:00
context.c arm64: cpufeature: Change read_cpuid() to use sysreg's mrs_s macro 2016-02-18 11:59:54 +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: ptdump: Indicate whether memory should be faulting 2016-02-16 15:40:44 +00:00
extable.c arm64: MMU fault handling and page table management 2012-09-17 13:41:57 +01:00
fault.c arm64: Remove the get_thread_info() function 2016-02-18 17:27:05 +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: mm: create new fine-grained mappings at boot 2016-02-16 15:10:46 +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: decouple early fixmap init from linear mapping 2016-02-18 18:16:34 +00:00
pageattr.c arm64: Add support for ARCH_SUPPORTS_DEBUG_PAGEALLOC 2016-02-16 15:40:30 +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