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x86: Make 32bit support NO_BOOTMEM

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Let's make 32bit consistent with 64bit.

-v2: Andrew pointed out for 32bit that we should use -1ULL

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <1265793639-15071-25-git-send-email-yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Yinghai Lu 2010-02-10 01:20:28 -08:00 committed by H. Peter Anvin
parent 53db62a252
commit 59be5a8e8c
4 changed files with 12 additions and 1 deletions
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1
arch/x86/Kconfig
View File

@ -571,7 +571,6 @@ config PARAVIRT_DEBUG
config NO_BOOTMEM
default y
bool "Disable Bootmem code"
depends on X86_64
---help---
Use early_res directly instead of bootmem before slab is ready.
- allocator (buddy) [generic]

3
arch/x86/kernel/early_res.c
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@ -354,6 +354,9 @@ int __init get_free_all_memory_range(struct range **rangep, int nodeid)
/* need to go over early_node_map to find out good range for node */
nr_range = add_from_early_node_map(range, count, nr_range, nodeid);
#ifdef CONFIG_X86_32
subtract_range(range, count, max_low_pfn, -1ULL);
#endif
subtract_early_res(range, count);
nr_range = clean_sort_range(range, count);

6
arch/x86/mm/init_32.c
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@ -748,6 +748,7 @@ static void __init zone_sizes_init(void)
free_area_init_nodes(max_zone_pfns);
}
#ifndef CONFIG_NO_BOOTMEM
static unsigned long __init setup_node_bootmem(int nodeid,
unsigned long start_pfn,
unsigned long end_pfn,
@ -767,9 +768,11 @@ static unsigned long __init setup_node_bootmem(int nodeid,
return bootmap + bootmap_size;
}
#endif
void __init setup_bootmem_allocator(void)
{
#ifndef CONFIG_NO_BOOTMEM
int nodeid;
unsigned long bootmap_size, bootmap;
/*
@ -781,11 +784,13 @@ void __init setup_bootmem_allocator(void)
if (bootmap == -1L)
panic("Cannot find bootmem map of size %ld\n", bootmap_size);
reserve_early(bootmap, bootmap + bootmap_size, "BOOTMAP");
#endif
printk(KERN_INFO " mapped low ram: 0 - %08lx\n",
max_pfn_mapped<<PAGE_SHIFT);
printk(KERN_INFO " low ram: 0 - %08lx\n", max_low_pfn<<PAGE_SHIFT);
#ifndef CONFIG_NO_BOOTMEM
for_each_online_node(nodeid) {
unsigned long start_pfn, end_pfn;
@ -803,6 +808,7 @@ void __init setup_bootmem_allocator(void)
bootmap = setup_node_bootmem(nodeid, start_pfn, end_pfn,
bootmap);
}
#endif
after_bootmem = 1;
}

3
arch/x86/mm/numa_32.c
View File

@ -418,7 +418,10 @@ void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn,
for_each_online_node(nid) {
memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
NODE_DATA(nid)->node_id = nid;
#ifndef CONFIG_NO_BOOTMEM
NODE_DATA(nid)->bdata = &bootmem_node_data[nid];
#endif
}
setup_bootmem_allocator();