diff options
Diffstat (limited to 'arch/powerpc/mm/lmb.c')
| -rw-r--r-- | arch/powerpc/mm/lmb.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/powerpc/mm/lmb.c b/arch/powerpc/mm/lmb.c index 9584608fd76..874cd103ce6 100644 --- a/arch/powerpc/mm/lmb.c +++ b/arch/powerpc/mm/lmb.c @@ -31,6 +31,8 @@ #define DBG(fmt...) #endif +#define LMB_ALLOC_ANYWHERE 0 + struct lmb lmb; void lmb_dump_all(void) @@ -197,6 +199,8 @@ long __init lmb_reserve(unsigned long base, unsigned long size) { struct lmb_region *_rgn = &(lmb.reserved); + BUG_ON(0 == size); + return lmb_add_region(_rgn, base, size); } @@ -224,9 +228,25 @@ unsigned long __init lmb_alloc(unsigned long size, unsigned long align) unsigned long __init lmb_alloc_base(unsigned long size, unsigned long align, unsigned long max_addr) { + unsigned long alloc; + + alloc = __lmb_alloc_base(size, align, max_addr); + + if (alloc < 0) + panic("ERROR: Failed to allocate 0x%lx bytes below 0x%lx.\n", + size, max_addr); + + return alloc; +} + +unsigned long __init __lmb_alloc_base(unsigned long size, unsigned long align, + unsigned long max_addr) +{ long i, j; unsigned long base = 0; + BUG_ON(0 == size); + #ifdef CONFIG_PPC32 /* On 32-bit, make sure we allocate lowmem */ if (max_addr == LMB_ALLOC_ANYWHERE) |