lk/linux-kernel-test
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Merge remote branch 'origin/master' into next

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This commit is contained in:
Benjamin Herrenschmidt
2011-06-30 15:23:59 +10:00
parent 17bdc6c0e9 ca56a95eed
commit 6da49a2925
815 changed files with 10221 additions and 4669 deletions
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27
arch/powerpc/kernel/prom.c
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@ -83,11 +83,29 @@ static int __init early_parse_mem(char *p)
}
early_param("mem", early_parse_mem);
/*
* overlaps_initrd - check for overlap with page aligned extension of
* initrd.
*/
static inline int overlaps_initrd(unsigned long start, unsigned long size)
{
#ifdef CONFIG_BLK_DEV_INITRD
if (!initrd_start)
return 0;
return (start + size) > _ALIGN_DOWN(initrd_start, PAGE_SIZE) &&
start <= _ALIGN_UP(initrd_end, PAGE_SIZE);
#else
return 0;
#endif
}
/**
* move_device_tree - move tree to an unused area, if needed.
*
* The device tree may be allocated beyond our memory limit, or inside the
* crash kernel region for kdump. If so, move it out of the way.
* crash kernel region for kdump, or within the page aligned range of initrd.
* If so, move it out of the way.
*/
static void __init move_device_tree(void)
{
@ -100,7 +118,8 @@ static void __init move_device_tree(void)
size = be32_to_cpu(initial_boot_params->totalsize);
if ((memory_limit && (start + size) > PHYSICAL_START + memory_limit) ||
overlaps_crashkernel(start, size)) {
overlaps_crashkernel(start, size) ||
overlaps_initrd(start, size)) {
p = __va(memblock_alloc(size, PAGE_SIZE));
memcpy(p, initial_boot_params, size);
initial_boot_params = (struct boot_param_header *)p;
@ -556,7 +575,9 @@ static void __init early_reserve_mem(void)
#ifdef CONFIG_BLK_DEV_INITRD
/* then reserve the initrd, if any */
if (initrd_start && (initrd_end > initrd_start))
memblock_reserve(__pa(initrd_start), initrd_end - initrd_start);
memblock_reserve(_ALIGN_DOWN(__pa(initrd_start), PAGE_SIZE),
_ALIGN_UP(initrd_end, PAGE_SIZE) -
_ALIGN_DOWN(initrd_start, PAGE_SIZE));
#endif /* CONFIG_BLK_DEV_INITRD */
#ifdef CONFIG_PPC32