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Merge "arm64: Make section size configurable for memory hotplug"

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qctecmdr 2020-01-03 05:46:22 -08:00 • committed by Gerrit - the friendly Code Review server
commit 1758058b4f
2 changed files with 15 additions and 0 deletions
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11
arch/arm64/Kconfig
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@ -282,6 +282,17 @@ config ARCH_ENABLE_MEMORY_HOTREMOVE
config SMP
def_bool y
config HOTPLUG_SIZE_BITS
int "Memory hotplug block size(29 => 512MB 30 => 1GB)"
depends on SPARSEMEM
depends on MEMORY_HOTPLUG
default 30
help
Selects granularity of hotplug memory. Block
size for memory hotplug is represent as a power
of 2.
If unsure, stick with default value.
config KERNEL_MODE_NEON
def_bool y

4
arch/arm64/include/asm/sparsemem.h
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@ -7,7 +7,11 @@
#ifdef CONFIG_SPARSEMEM
#define MAX_PHYSMEM_BITS CONFIG_ARM64_PA_BITS
#ifndef CONFIG_MEMORY_HOTPLUG
#define SECTION_SIZE_BITS 30
#else
#define SECTION_SIZE_BITS CONFIG_HOTPLUG_SIZE_BITS
#endif
#endif
#endif