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232aa40763
linux/arch/powerpc/mm
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Michael Ellerman 232aa40763 powerpc/mm/radix: Simplify split mapping logic 
If we look closely at the logic in create_physical_mapping(), when
we're doing STRICT_KERNEL_RWX, we do the following steps:
  - determine the gap from where we are to the end of the range
  - choose an appropriate mapping_size based on the gap
  - check if that mapping_size would overlap the __init_begin
    boundary, and if not choose an appropriate mapping_size

We can simplify the logic by taking the __init_begin boundary into
account when we calculate the initial gap.

So add a next_boundary() function which tells us what the next
boundary is, either the __init_begin boundary or end. In future we can
add more boundaries.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-10-20 13:26:47 +11:00
..
8xx_mmu.c powerpc/8xx: change name of a few page flags to avoid confusion 2018-10-14 18:04:09 +11:00
40x_mmu.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
44x_mmu.c powerpc/44x: Mark mmu_init_secondary() as __init 2018-07-30 22:48:22 +10:00
copro_fault.c mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
dma-noncoherent.c powerpc: handover page flags with a pgprot_t parameter 2018-10-14 18:04:09 +11:00
drmem.c powerpc/mm/drmem: Fix unexpected flag value in ibm,dynamic-memory-v2 2018-02-23 16:45:51 +11:00
dump_hashpagetable.c powerpc: remove superflous inclusions of asm/fixmap.h 2018-07-30 22:48:18 +10:00
dump_linuxpagetables-8xx.c powerpc/8xx: change name of a few page flags to avoid confusion 2018-10-14 18:04:09 +11:00
dump_linuxpagetables-book3s64.c powerpc/book3s64: fix dump_linuxpagetables "present" flag 2018-10-20 13:26:47 +11:00
dump_linuxpagetables-generic.c powerpc/mm: Split dump_pagelinuxtables flag_array table 2018-10-14 18:04:09 +11:00
dump_linuxpagetables.c powerpc/mm: Split dump_pagelinuxtables flag_array table 2018-10-14 18:04:09 +11:00
dump_linuxpagetables.h powerpc/mm: Split dump_pagelinuxtables flag_array table 2018-10-14 18:04:09 +11:00
fault.c Merge branch 'akpm' (patches from Andrew) 2018-08-17 16:49:31 -07:00
fsl_booke_mmu.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
hash64_4k.c powerpc/mm/hash: Remove the superfluous bitwise operation when find hpte group 2018-07-24 22:03:17 +10:00
hash64_64k.c powerpc/mm/hash: Remove the superfluous bitwise operation when find hpte group 2018-07-24 22:03:17 +10:00
hash_low_32.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
hash_native_64.c powerpc/64s/hash: Do not use PPC_INVALIDATE_ERAT on CPUs before POWER9 2018-10-04 23:16:53 +10:00
hash_utils_64.c powerpc/64s/hash: Simplify slb_flush_and_rebolt() 2018-10-14 18:04:09 +11:00
highmem.c powerpc/mm: remove warning about ‘type’ being set 2018-08-10 22:12:38 +10:00
hugepage-hash64.c arch/powerpc/mm/hash: validate the pte entries before handling the hash fault 2018-10-03 15:39:59 +10:00
hugetlbpage-book3e.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hugetlbpage-hash64.c arch/powerpc/mm/hash: validate the pte entries before handling the hash fault 2018-10-03 15:39:59 +10:00
hugetlbpage-radix.c powerpc updates for 4.15 2017-11-16 12:47:46 -08:00
hugetlbpage.c powerpc/mm: Don't report hugepage tables as memory leaks when using kmemleak 2018-10-03 15:40:07 +10:00
init_32.c powerpc/mm/32: Remove the reserved memory hack 2018-04-01 00:47:44 +11:00
init_64.c powerpc/mm/radix: Parse disable_radix commandline correctly. 2018-04-04 16:59:36 +10:00
init-common.c powerpc/mm: Fix crashes with 16G huge pages 2018-02-13 22:37:47 +11:00
Makefile powerpc: Add -Werror at arch/powerpc level 2018-10-19 00:56:17 +11:00
mem.c powerpc/mm: don't use _PAGE_EXEC for calling hash_preload() 2018-10-14 18:04:09 +11:00
mmap.c exec: pass stack rlimit into mm layout functions 2018-04-11 10:28:37 -07:00
mmu_context_book3s64.c powerpc/64s/hash: Add a SLB preload cache 2018-10-14 18:04:09 +11:00
mmu_context_hash32.c powerpc: remove unnecessary inclusion of asm/tlbflush.h 2018-07-30 22:48:20 +10:00
mmu_context_iommu.c KVM: PPC: Book3S: Fix guest DMA when guest partially backed by THP pages 2018-08-23 23:40:10 +10:00
mmu_context_nohash.c powerpc/mm: Remove stale_map[] handling on non SMP processors 2018-06-04 00:39:16 +10:00
mmu_context.c Revert "convert SLB miss handlers to C" and subsequent commits 2018-10-03 15:32:49 +10:00
mmu_decl.h powerpc/mm: Trace tlbia instruction 2018-10-20 13:26:47 +11:00
numa.c powerpc/pseries/mobility: Extend start/stop topology update scope 2018-10-13 22:21:25 +11:00
pgtable_32.c powerpc/mm: use pte helpers in generic code 2018-10-14 18:04:09 +11:00
pgtable_64.c powerpc/mm: use pte helpers in generic code 2018-10-14 18:04:09 +11:00
pgtable-book3e.c powerpc: handover page flags with a pgprot_t parameter 2018-10-14 18:04:09 +11:00
pgtable-book3s64.c powerpc/mm: Fix WARN_ON with THP NUMA migration 2018-10-20 13:26:47 +11:00
pgtable-hash64.c powerpc: handover page flags with a pgprot_t parameter 2018-10-14 18:04:09 +11:00
pgtable-radix.c powerpc/mm/radix: Simplify split mapping logic 2018-10-20 13:26:47 +11:00
pgtable.c powerpc/mm: Fix WARN_ON with THP NUMA migration 2018-10-20 13:26:47 +11:00
pkeys.c powerpc/pkeys: Fix reading of ibm, processor-storage-keys property 2018-09-20 22:49:46 +10:00
ppc_mmu_32.c powerpc/mm: don't use _PAGE_EXEC for calling hash_preload() 2018-10-14 18:04:09 +11:00
slb.c powerpc/mm: Increase the max addressable memory to 2PB 2018-10-14 18:04:09 +11:00
slice.c powerpc/mm: fix always true/false warning in slice.c 2018-10-20 13:26:47 +11:00
subpage-prot.c powerpc: remove unnecessary inclusion of asm/tlbflush.h 2018-07-30 22:48:20 +10:00
tlb_hash32.c powerpc/sparse: Fix plain integer as NULL pointer warning 2018-05-25 12:04:38 +10:00
tlb_hash64.c powerpc/mm: Add support for handling > 512TB address in SLB miss 2018-03-31 00:10:38 +11:00
tlb_low_64e.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
tlb_nohash_low.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
tlb_nohash.c powerpc/nohash: fix undefined behaviour when testing page size support 2018-10-04 16:54:41 +10:00
tlb-radix.c powerpc/64s/radix: Explicitly flush ERAT with local LPID invalidation 2018-10-04 23:16:53 +10:00
vphn.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vphn.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00