Searched hist:"4 ab215061554ae2a4b78744a5dd3b3c6639f16a7" (Results 1 – 3 of 3) sorted by relevance
| /openbmc/linux/arch/arm64/mm/ |
| H A D | init.c | diff 4ab215061554ae2a4b78744a5dd3b3c6639f16a7 Tue Dec 11 12:48:48 CST 2018 Robin Murphy <robin.murphy@arm.com> 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>
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| H A D | mmu.c | diff 4ab215061554ae2a4b78744a5dd3b3c6639f16a7 Tue Dec 11 12:48:48 CST 2018 Robin Murphy <robin.murphy@arm.com> 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>
|
| /openbmc/linux/arch/arm64/ |
| H A D | Kconfig | diff 4ab215061554ae2a4b78744a5dd3b3c6639f16a7 Tue Dec 11 12:48:48 CST 2018 Robin Murphy <robin.murphy@arm.com> 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>
|