iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
40bb0e9042
linux/arch/powerpc/mm
History
Christophe Leroy 40bb0e9042 Revert "powerpc/32s: reorder Linux PTE bits to better match Hash PTE bits." 
This reverts commit 697ece78f8.

The implementation of SWAP on powerpc requires page protection
bits to not be one of the least significant PTE bits.

Until the SWAP implementation is changed and this requirement voids,
we have to keep at least _PAGE_RW outside of the 3 last bits.

For now, revert to previous PTE bits order. A further rework
may come later.

Fixes: 697ece78f8 ("powerpc/32s: reorder Linux PTE bits to better match Hash PTE bits.")
Reported-by: Rui Salvaterra <rsalvaterra@gmail.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/b34706f8de87f84d135abb5f3ede6b6f16fb1f41.1589969799.git.christophe.leroy@csgroup.eu
2020-05-20 22:35:52 +10:00
..
book3s32 Revert "powerpc/32s: reorder Linux PTE bits to better match Hash PTE bits." 2020-05-20 22:35:52 +10:00
book3s64 powerpc/mm: thread pgprot_t through create_section_mapping() 2020-04-10 15:36:21 -07:00
kasan powerpc updates for 5.7 2020-04-05 11:12:59 -07:00
nohash powerpc/8xx: Fix STRICT_KERNEL_RWX startup test failure 2020-04-22 20:23:41 +10:00
ptdump powerpc/mm: ptdump: no need to check return value of debugfs_create functions 2020-03-04 22:44:25 +11:00
copro_fault.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153 2019-05-30 11:26:32 -07:00
dma-noncoherent.c dma-mapping: drop the dev argument to arch_sync_dma_for_* 2019-11-20 20:31:38 +01:00
drmem.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
fault.c mm/vma: make vma_is_accessible() available for general use 2020-04-07 10:43:37 -07:00
highmem.c powerpc/highmem: Change BUG_ON() to WARN_ON() 2019-04-20 22:02:11 +10:00
hugetlbpage.c powerpc/hugetlb: Fix 512k hugepages on 8xx with 16k page size 2020-02-17 12:47:05 +11:00
init_32.c powerpc: move memstart_addr and kernstart_addr to init-common.c 2019-11-13 19:27:28 +11:00
init_64.c Merge branch 'topic/kaslr-book3e32' into next 2019-11-14 19:23:33 +11:00
init-common.c powerpc: introduce kernstart_virt_addr to store the kernel base 2019-11-13 19:27:32 +11:00
ioremap_32.c powerpc/ioremap: warn on early use of ioremap() 2019-11-19 19:38:38 +11:00
ioremap_64.c powerpc/ioremap: warn on early use of ioremap() 2019-11-19 19:38:38 +11:00
ioremap.c mm/memremap_pages: Introduce memremap_compat_align() 2020-02-20 16:58:55 -08:00
Makefile powerpc/mm: Move ioremap functions out of pgtable_32/64.c 2019-08-27 13:03:35 +10:00
mem.c mm/memory_hotplug: add pgprot_t to mhp_params 2020-04-10 15:36:21 -07:00
mmap.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
mmu_context.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mmu_decl.h powerpc/ptdump: don't entirely rebuild kernel when selecting CONFIG_PPC_DEBUG_WX 2020-01-23 21:31:11 +11:00
numa.c powerpc/numa: Remove late request for home node associativity 2020-03-04 22:44:31 +11:00
pgtable_32.c powerpc/32: drop get_pteptr() 2020-02-26 10:34:41 +11:00
pgtable_64.c powerpc/mm: Move ioremap functions out of pgtable_32/64.c 2019-08-27 13:03:35 +10:00
pgtable-frag.c mm: treewide: clarify pgtable_page_{ctor,dtor}() naming 2019-09-26 10:10:44 -07:00
pgtable.c powerpc updates for 5.3 2019-07-13 16:08:36 -07:00
slice.c powerpc/mm: Mark get_slice_psize() & slice_addr_is_low() as notrace 2019-12-23 21:12:51 +11:00