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linux/arch/powerpc/mm
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Christophe Leroy db3a528db4 powerpc/mm/slice: Enhance for supporting PPC32 
In preparation for the following patch which will fix an issue on
the 8xx by re-using the 'slices', this patch enhances the
'slices' implementation to support 32 bits CPUs.

On PPC32, the address space is limited to 4Gbytes, hence only the low
slices will be used.

The high slices use bitmaps. As bitmap functions are not prepared to
handle bitmaps of size 0, this patch ensures that bitmap functions
are called only when SLICE_NUM_HIGH is not nul.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-03-06 09:21:23 +11:00
..
8xx_mmu.c powerpc/8xx: Use L1 entry APG to handle _PAGE_ACCESSED for CONFIG_SWAP 2018-01-16 23:47:15 +11:00
40x_mmu.c
44x_mmu.c
copro_fault.c
dma-noncoherent.c powerpc/mm: Rename map_page() to map_kernel_page() on 32-bit 2017-06-05 19:59:03 +10:00
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/64s: Replace CONFIG_PPC_STD_MMU_64 with CONFIG_PPC_BOOK3S_64 2017-11-06 16:48:14 +11:00
dump_linuxpagetables.c powerpc/mm: Introduce _PAGE_NA 2018-01-16 23:47:14 +11:00
fault.c Merge branch 'fixes' into next 2018-01-21 23:21:14 +11:00
fsl_booke_mmu.c
hash64_4k.c powerpc/mm/hash64: Store the slot information at the right offset for hugetlb 2018-02-13 22:37:48 +11:00
hash64_64k.c powerpc/mm/hash64: Store the slot information at the right offset for hugetlb 2018-02-13 22:37:48 +11:00
hash_low_32.S powerpc: fix location of two EXPORT_SYMBOL 2017-09-01 16:42:45 +10:00
hash_native_64.c powerpc/64s: Improve local TLB flush for boot and MCE on POWER9 2018-01-18 00:40:31 +11:00
hash_utils_64.c powerpc/mm: Fix crashes with 16G huge pages 2018-02-13 22:37:47 +11:00
highmem.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hugepage-hash64.c
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 powerpc/mm/hash64: Store the slot information at the right offset for hugetlb 2018-02-13 22:37:48 +11:00
hugetlbpage-radix.c powerpc updates for 4.15 2017-11-16 12:47:46 -08:00
hugetlbpage.c powerpc/64: Rename soft_enabled to irq_soft_mask 2018-01-19 22:37:01 +11:00
init-common.c powerpc/mm: Fix crashes with 16G huge pages 2018-02-13 22:37:47 +11:00
init_32.c powerpc/mm/hugetlb: Add support for reserving gigantic huge pages via kernel command line 2017-08-16 14:56:12 +10:00
init_64.c libnvdimm for 4.16 2018-02-06 10:41:33 -08:00
Makefile powerpc: initial pkey plumbing 2018-01-20 21:45:03 +11:00
mem.c libnvdimm for 4.16 2018-02-06 10:41:33 -08:00
mmap.c powerpc/64s: mm_context.addr_limit is only used on hash 2017-11-13 23:35:43 +11:00
mmu_context.c powerpc, membarrier: Skip memory barrier in switch_mm() 2018-02-05 21:34:02 +01:00
mmu_context_book3s64.c powerpc: track allocation status of all pkeys 2018-01-20 22:58:35 +11:00
mmu_context_hash32.c
mmu_context_iommu.c
mmu_context_nohash.c
mmu_decl.h powerpc/8xx: Getting rid of remaining use of CONFIG_8xx 2017-08-10 23:32:12 +10:00
numa.c powerpc/numa: Invalidate numa_cpu_lookup_table on cpu remove 2018-02-08 23:56:10 +11:00
pgtable-book3e.c
pgtable-book3s64.c powerpc/mm: update pmdp_invalidate to return old pmd value 2018-01-31 17:18:37 -08:00
pgtable-hash64.c mm/thp: remove pmd_huge_split_prepare() 2018-01-31 17:18:38 -08:00
pgtable-radix.c powerpc/mm: Fix crashes with 16G huge pages 2018-02-13 22:37:47 +11:00
pgtable.c powerpc/mm: extend _PAGE_PRIVILEGED to all CPUs 2018-01-16 23:47:13 +11:00
pgtable_32.c powerpc/mm: extend _PAGE_PRIVILEGED to all CPUs 2018-01-16 23:47:13 +11:00
pgtable_64.c powerpc/mm: Fix crashes with 16G huge pages 2018-02-13 22:37:47 +11:00
pkeys.c powerpc: Enable pkey subsystem 2018-01-21 01:06:10 +11:00
ppc_mmu_32.c
slb.c powerpc/64s: Rename slb_allocate_realmode() to slb_allocate() 2017-06-21 16:18:33 +10:00
slb_low.S powerpc/64s: mm_context.addr_limit is only used on hash 2017-11-13 23:35:43 +11:00
slice.c powerpc/mm/slice: Enhance for supporting PPC32 2018-03-06 09:21:23 +11:00
subpage-prot.c powerpc/mm: Invalidate subpage_prot() system call on radix platforms 2018-01-21 01:12:21 +11:00
tlb-radix.c powerpc/radix: Remove trace_tlbie call from radix__flush_tlb_all 2018-01-22 05:48:35 +11:00
tlb_hash32.c
tlb_hash64.c powerpc/mm/hash64: Store the slot information at the right offset for hugetlb 2018-02-13 22:37:48 +11:00
tlb_low_64e.S
tlb_nohash.c powerpc/mm/nohash: do not flush the entire mm when range is a single page 2018-01-27 20:24:44 +11:00
tlb_nohash_low.S powerpc/8xx: Getting rid of remaining use of CONFIG_8xx 2017-08-10 23:32:12 +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