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| author |   Reza Arbab <arbab@linux.vnet.ibm.com> | 2017-01-16 13:07:44 -0600 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2017-01-31 13:54:19 +1100 |
| commit | 6cc27341b21a81052f36c137bc44cf55f83e46ff (patch) | |
| tree | 8fbbf23d0908bd5d1a32296e8fe3412d10c4b94e /arch | |
| parent | powerpc/mm: refactor radix physical page mapping (diff) | |
| download | linux-dev-6cc27341b21a81052f36c137bc44cf55f83e46ff.tar.xz linux-dev-6cc27341b21a81052f36c137bc44cf55f83e46ff.zip | |
powerpc/mm: add radix__create_section_mapping()
Wire up memory hotplug page mapping for radix. Share the mapping
function already used by radix_init_pgtable().
Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/radix.h | 4 | ||||
| -rw-r--r-- | arch/powerpc/mm/pgtable-book3s64.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/mm/pgtable-radix.c | 7 |
3 files changed, 12 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/radix.h b/arch/powerpc/include/asm/book3s/64/radix.h index b4d1302387a3..43c25718de61 100644 --- a/arch/powerpc/include/asm/book3s/64/radix.h +++ b/arch/powerpc/include/asm/book3s/64/radix.h @@ -291,5 +291,9 @@ static inline unsigned long radix__get_tree_size(void) } return rts_field; } + +#ifdef CONFIG_MEMORY_HOTPLUG +int radix__create_section_mapping(unsigned long start, unsigned long end); +#endif /* CONFIG_MEMORY_HOTPLUG */ #endif /* __ASSEMBLY__ */ #endif diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c index 653ff6c74ebe..2b13f6b87e25 100644 --- a/arch/powerpc/mm/pgtable-book3s64.c +++ b/arch/powerpc/mm/pgtable-book3s64.c @@ -131,7 +131,7 @@ void mmu_cleanup_all(void) int create_section_mapping(unsigned long start, unsigned long end) { if (radix_enabled()) - return -ENODEV; + return radix__create_section_mapping(start, end); return hash__create_section_mapping(start, end); } diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c index c0365eca7f81..7829e09ab4dd 100644 --- a/arch/powerpc/mm/pgtable-radix.c +++ b/arch/powerpc/mm/pgtable-radix.c @@ -481,6 +481,13 @@ void radix__setup_initial_memory_limit(phys_addr_t first_memblock_base, memblock_set_current_limit(first_memblock_base + first_memblock_size); } +#ifdef CONFIG_MEMORY_HOTPLUG +int __ref radix__create_section_mapping(unsigned long start, unsigned long end) +{ + return create_physical_mapping(start, end); +} +#endif /* CONFIG_MEMORY_HOTPLUG */ + #ifdef CONFIG_SPARSEMEM_VMEMMAP int __meminit radix__vmemmap_create_mapping(unsigned long start, unsigned long page_size, |