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yaml
---
r: 185139
b: refs/heads/master
c: dd645ce
h: refs/heads/master
i:
  185137: bf23124
  185135: d877f1e
v: v3
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Yinghai Lu authored and H. Peter Anvin committed Feb 12, 2010
1 parent 519fa03 commit b43c623
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Showing 4 changed files with 17 additions and 7 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 9b3be9f99203d9a400e8547f0e80f1d8f8e5738c
refs/heads/master: dd645cee7b50b61cb2d05b59eb6027679c437af6
1 change: 1 addition & 0 deletions trunk/arch/x86/include/asm/early_res.h
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ u64 find_early_area(u64 ei_start, u64 ei_last, u64 start, u64 end,
u64 size, u64 align);
u64 find_early_area_size(u64 ei_start, u64 ei_last, u64 start,
u64 *sizep, u64 align);
u64 find_fw_memmap_area(u64 start, u64 end, u64 size, u64 align);
#include <linux/range.h>
int get_free_all_memory_range(struct range **rangep, int nodeid);

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4 changes: 4 additions & 0 deletions trunk/arch/x86/kernel/e820.c
Original file line number Diff line number Diff line change
Expand Up @@ -748,6 +748,10 @@ u64 __init find_e820_area(u64 start, u64 end, u64 size, u64 align)
return -1ULL;
}

u64 __init find_fw_memmap_area(u64 start, u64 end, u64 size, u64 align)
{
return find_e820_area(start, end, size, align);
}
/*
* Find next free range after *start
*/
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17 changes: 11 additions & 6 deletions trunk/arch/x86/kernel/early_res.c
Original file line number Diff line number Diff line change
Expand Up @@ -7,16 +7,14 @@
#include <linux/bootmem.h>
#include <linux/mm.h>

#include <asm/e820.h>
#include <asm/early_res.h>
#include <asm/proto.h>

/*
* Early reserved memory areas.
*/
/*
* need to make sure this one is bigger enough before
* find_e820_area could be used
* find_fw_memmap_area could be used
*/
#define MAX_EARLY_RES_X 32

Expand Down Expand Up @@ -180,6 +178,13 @@ void __init reserve_early_overlap_ok(u64 start, u64 end, char *name)
__reserve_early(start, end, name, 1);
}

u64 __init __weak find_fw_memmap_area(u64 start, u64 end, u64 size, u64 align)
{
panic("should have find_fw_memmap_area defined with arch");

return -1ULL;
}

static void __init __check_and_double_early_res(u64 ex_start, u64 ex_end)
{
u64 start, end, size, mem;
Expand All @@ -198,13 +203,13 @@ static void __init __check_and_double_early_res(u64 ex_start, u64 ex_end)
start = early_res[0].end;
end = ex_start;
if (start + size < end)
mem = find_e820_area(start, end, size,
mem = find_fw_memmap_area(start, end, size,
sizeof(struct early_res));
if (mem == -1ULL) {
start = ex_end;
end = max_pfn_mapped << PAGE_SHIFT;
if (start + size < end)
mem = find_e820_area(start, end, size,
mem = find_fw_memmap_area(start, end, size,
sizeof(struct early_res));
}
if (mem == -1ULL)
Expand Down Expand Up @@ -343,7 +348,7 @@ int __init get_free_all_memory_range(struct range **rangep, int nodeid)
start = MAX_DMA32_PFN << PAGE_SHIFT;
#endif
end = max_pfn_mapped << PAGE_SHIFT;
mem = find_e820_area(start, end, size, sizeof(struct range));
mem = find_fw_memmap_area(start, end, size, sizeof(struct range));
if (mem == -1ULL)
panic("can not find more space for range free");

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