Commit 1dc41aa6 authored by Nathan Fontenot's avatar Nathan Fontenot Committed by Greg Kroah-Hartman
Browse files

memory hotplug: Define memory_block_size_bytes for x86_64 with CONFIG_X86_UV



Define a version of memory_block_size_bytes for x86_64 when CONFIG_X86_UV is
set.
Signed-off-by: default avatarRobin Holt <holt@sgi.com>
Signed-off-by: default avatarJack Steiner <steiner@sgi.com>
Signed-off-by: default avatarNathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent c540ada2
......@@ -51,6 +51,7 @@
#include <asm/numa.h>
#include <asm/cacheflush.h>
#include <asm/init.h>
#include <asm/uv/uv.h>
static int __init parse_direct_gbpages_off(char *arg)
{
......@@ -908,6 +909,19 @@ const char *arch_vma_name(struct vm_area_struct *vma)
return NULL;
}
#ifdef CONFIG_X86_UV
#define MIN_MEMORY_BLOCK_SIZE (1 << SECTION_SIZE_BITS)
unsigned long memory_block_size_bytes(void)
{
if (is_uv_system()) {
printk(KERN_INFO "UV: memory block size 2GB\n");
return 2UL * 1024 * 1024 * 1024;
}
return MIN_MEMORY_BLOCK_SIZE;
}
#endif
#ifdef CONFIG_SPARSEMEM_VMEMMAP
/*
* Initialise the sparsemem vmemmap using huge-pages at the PMD level.
......
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