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linux-next/arch/arm64/mm
Robin Murphy 4ab2150615 arm64: Add memory hotplug support
Wire up the basic support for hot-adding memory. Since memory hotplug
is fairly tightly coupled to sparsemem, we tweak pfn_valid() to also
cross-check the presence of a section in the manner of the generic
implementation, before falling back to memblock to check for no-map
regions within a present section as before. By having arch_add_memory(()
create the linear mapping first, this then makes everything work in the
way that __add_section() expects.

We expect hotplug to be ACPI-driven, so the swapper_pg_dir updates
should be safe from races by virtue of the global device hotplug lock.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-12-12 14:43:43 +00:00
..
cache.S arm64: Fix minor issues with the dcache_by_line_op macro 2018-12-10 15:03:51 +00:00
context.c arm64: mm: Drop the unused cpu parameter 2018-10-09 17:17:23 +01:00
copypage.c arm64: Defer dcache flush in __cpu_copy_user_page 2015-12-17 11:07:13 +00:00
dma-mapping.c arm64: fix warnings without CONFIG_IOMMU_DMA 2018-11-02 19:27:22 +01:00
dump.c arm64: dump: Use consistent capitalisation for page-table dumps 2018-09-10 16:15:23 +01:00
extable.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fault.c arm64: mm: introduce 52-bit userspace support 2018-12-10 18:42:17 +00:00
flush.c arm64: mm: Export __sync_icache_dcache() for xen-privcmd 2018-07-27 13:12:15 +01:00
hugetlbpage.c arm64: hugetlb: Register hugepages during arch init 2018-12-06 17:01:13 +00:00
init.c arm64: Add memory hotplug support 2018-12-12 14:43:43 +00:00
ioremap.c arm64: use is_vmalloc_addr 2017-02-09 13:47:56 +00:00
kasan_init.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mmap.c exec: pass stack rlimit into mm layout functions 2018-04-11 10:28:37 -07:00
mmu.c arm64: Add memory hotplug support 2018-12-12 14:43:43 +00:00
numa.c arm64: Add memory hotplug support 2018-12-12 14:43:43 +00:00
pageattr.c arm64: mm: apply r/o permissions of VM areas to its linear alias as well 2018-11-20 11:38:26 +00:00
pgd.c arm64: handle 52-bit addresses in TTBR 2017-12-22 17:35:21 +00:00
physaddr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
proc.S arm64: Kconfig: Re-jig CONFIG options for 52-bit VA 2018-12-10 18:42:18 +00:00
ptdump_debugfs.c ARM64: dump: Convert to use DEFINE_SHOW_ATTRIBUTE macro 2018-07-02 10:36:37 +01:00