linux/arch/arm64/mm
Mark Rutland 9aa4ec1571 arm64: mm: fold alternatives into .init
Currently we treat the alternatives separately from other data that's
only used during initialisation, using separate .altinstructions and
.altinstr_replacement linker sections. These are freed for general
allocation separately from .init*. This is problematic as:

* We do not remove execute permissions, as we do for .init, leaving the
  memory executable.

* We pad between them, making the kernel Image bianry up to PAGE_SIZE
  bytes larger than necessary.

This patch moves the two sections into the contiguous region used for
.init*. This saves some memory, ensures that we remove execute
permissions, and allows us to remove some code made redundant by this
reorganisation.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Andre Przywara <andre.przywara@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Jeremy Linton <jeremy.linton@arm.com>
Cc: Laura Abbott <labbott@fedoraproject.org>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-12-10 17:36:08 +00:00
..
cache.S arm64: use ENDPIPROC() to annotate position independent assembler routines 2015-10-12 16:19:45 +01:00
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: export __cpu_{clear,copy}_user_page functions 2014-07-08 17:30:51 +01:00
dma-mapping.c arm64: add __init/__initdata section marker to some functions/variables 2015-12-02 12:17:11 +00:00
dump.c arm64: Make the kernel page dump utility aware of the CONT bit 2015-10-08 18:39:57 +01:00
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: force CONFIG_SMP=y and remove redundant #ifdefs 2015-07-27 11:08:40 +01:00
hugetlbpage.c arm64: hugetlb: remove paragraph about writing to FSF 2015-07-27 11:08:40 +01:00
init.c arm64: mm: fold alternatives into .init 2015-12-10 17:36:08 +00:00
ioremap.c arm64: add ioremap physical address information 2015-01-23 15:29:06 +00:00
kasan_init.c arm64: kasan: fix issues reported by sparse 2015-10-13 14:54:42 +01:00
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 mm: expose arch_mmap_rnd when available 2015-04-14 16:49:05 -07:00
mmu.c arm64: mm: remove pointless PAGE_MASKing 2015-12-10 17:36:08 +00:00
pageattr.c arm64/mm: use PAGE_ALIGNED instead of IS_ALIGNED 2015-10-28 18:36:32 +00:00
pgd.c arm64: move PGD_SIZE definition to pgalloc.h 2015-10-12 17:46:30 +01:00
proc-macros.S arm64: mm: increase VA range of identity map 2015-03-23 11:35:29 +00:00
proc.S arm64 updates for 4.4: 2015-11-04 14:47:13 -08:00