diff options
| -rw-r--r-- | lib/lmb.c | 72 |
1 files changed, 30 insertions, 42 deletions
@@ -15,14 +15,6 @@ #include <linux/bitops.h> #include <linux/lmb.h> -#undef DEBUG - -#ifdef DEBUG -#define DBG(fmt...) LMB_DBG(fmt) -#else -#define DBG(fmt...) -#endif - #define LMB_ALLOC_ANYWHERE 0 struct lmb lmb; @@ -32,32 +24,32 @@ void lmb_dump_all(void) #ifdef DEBUG unsigned long i; - DBG("lmb_dump_all:\n"); - DBG(" memory.cnt = 0x%lx\n", lmb.memory.cnt); - DBG(" memory.size = 0x%llx\n", + pr_debug("lmb_dump_all:\n"); + pr_debug(" memory.cnt = 0x%lx\n", lmb.memory.cnt); + pr_debug(" memory.size = 0x%llx\n", (unsigned long long)lmb.memory.size); for (i=0; i < lmb.memory.cnt ;i++) { - DBG(" memory.region[0x%x].base = 0x%llx\n", + pr_debug(" memory.region[0x%x].base = 0x%llx\n", i, (unsigned long long)lmb.memory.region[i].base); - DBG(" .size = 0x%llx\n", + pr_debug(" .size = 0x%llx\n", (unsigned long long)lmb.memory.region[i].size); } - DBG("\n reserved.cnt = 0x%lx\n", lmb.reserved.cnt); - DBG(" reserved.size = 0x%lx\n", lmb.reserved.size); + pr_debug(" reserved.cnt = 0x%lx\n", lmb.reserved.cnt); + pr_debug(" reserved.size = 0x%lx\n", lmb.reserved.size); for (i=0; i < lmb.reserved.cnt ;i++) { - DBG(" reserved.region[0x%x].base = 0x%llx\n", + pr_debug(" reserved.region[0x%x].base = 0x%llx\n", i, (unsigned long long)lmb.reserved.region[i].base); - DBG(" .size = 0x%llx\n", + pr_debug(" .size = 0x%llx\n", (unsigned long long)lmb.reserved.region[i].size); } #endif /* DEBUG */ } -static unsigned long __init lmb_addrs_overlap(u64 base1, - u64 size1, u64 base2, u64 size2) +static unsigned long __init lmb_addrs_overlap(u64 base1, u64 size1, + u64 base2, u64 size2) { - return ((base1 < (base2+size2)) && (base2 < (base1+size1))); + return ((base1 < (base2 + size2)) && (base2 < (base1 + size1))); } static long __init lmb_addrs_adjacent(u64 base1, u64 size1, @@ -101,7 +93,6 @@ static void __init lmb_coalesce_regions(struct lmb_region *rgn, lmb_remove_region(rgn, r2); } -/* This routine called with relocation disabled. */ void __init lmb_init(void) { /* Create a dummy zero size LMB which will get coalesced away later. @@ -117,7 +108,6 @@ void __init lmb_init(void) lmb.reserved.cnt = 1; } -/* This routine may be called with relocation disabled. */ void __init lmb_analyze(void) { int i; @@ -128,7 +118,6 @@ void __init lmb_analyze(void) lmb.memory.size += lmb.memory.region[i].size; } -/* This routine called with relocation disabled. */ static long __init lmb_add_region(struct lmb_region *rgn, u64 base, u64 size) { unsigned long coalesced = 0; @@ -141,7 +130,7 @@ static long __init lmb_add_region(struct lmb_region *rgn, u64 base, u64 size) } /* First try and coalesce this LMB with another. */ - for (i=0; i < rgn->cnt; i++) { + for (i = 0; i < rgn->cnt; i++) { u64 rgnbase = rgn->region[i].base; u64 rgnsize = rgn->region[i].size; @@ -149,21 +138,20 @@ static long __init lmb_add_region(struct lmb_region *rgn, u64 base, u64 size) /* Already have this region, so we're done */ return 0; - adjacent = lmb_addrs_adjacent(base,size,rgnbase,rgnsize); - if ( adjacent > 0 ) { + adjacent = lmb_addrs_adjacent(base, size, rgnbase, rgnsize); + if (adjacent > 0) { rgn->region[i].base -= size; rgn->region[i].size += size; coalesced++; break; - } - else if ( adjacent < 0 ) { + } else if (adjacent < 0) { rgn->region[i].size += size; coalesced++; break; } } - if ((i < rgn->cnt-1) && lmb_regions_adjacent(rgn, i, i+1) ) { + if ((i < rgn->cnt - 1) && lmb_regions_adjacent(rgn, i, i+1)) { lmb_coalesce_regions(rgn, i, i+1); coalesced++; } @@ -174,7 +162,7 @@ static long __init lmb_add_region(struct lmb_region *rgn, u64 base, u64 size) return -1; /* Couldn't coalesce the LMB, so add it to the sorted table. */ - for (i = rgn->cnt-1; i >= 0; i--) { + for (i = rgn->cnt - 1; i >= 0; i--) { if (base < rgn->region[i].base) { rgn->region[i+1].base = rgn->region[i].base; rgn->region[i+1].size = rgn->region[i].size; @@ -194,10 +182,9 @@ static long __init lmb_add_region(struct lmb_region *rgn, u64 base, u64 size) return 0; } -/* This routine may be called with relocation disabled. */ long __init lmb_add(u64 base, u64 size) { - struct lmb_region *_rgn = &(lmb.memory); + struct lmb_region *_rgn = &lmb.memory; /* On pSeries LPAR systems, the first LMB is our RMO region. */ if (base == 0) @@ -209,24 +196,22 @@ long __init lmb_add(u64 base, u64 size) long __init lmb_reserve(u64 base, u64 size) { - struct lmb_region *_rgn = &(lmb.reserved); + struct lmb_region *_rgn = &lmb.reserved; BUG_ON(0 == size); return lmb_add_region(_rgn, base, size); } -long __init lmb_overlaps_region(struct lmb_region *rgn, u64 base, - u64 size) +long __init lmb_overlaps_region(struct lmb_region *rgn, u64 base, u64 size) { unsigned long i; - for (i=0; i < rgn->cnt; i++) { + for (i = 0; i < rgn->cnt; i++) { u64 rgnbase = rgn->region[i].base; u64 rgnsize = rgn->region[i].size; - if ( lmb_addrs_overlap(base,size,rgnbase,rgnsize) ) { + if (lmb_addrs_overlap(base, size, rgnbase, rgnsize)) break; - } } return (i < rgn->cnt) ? i : -1; @@ -337,7 +322,7 @@ u64 __init __lmb_alloc_base(u64 size, u64 align, u64 max_addr) if (max_addr == LMB_ALLOC_ANYWHERE) max_addr = LMB_REAL_LIMIT; - for (i = lmb.memory.cnt-1; i >= 0; i--) { + for (i = lmb.memory.cnt - 1; i >= 0; i--) { u64 lmbbase = lmb.memory.region[i].base; u64 lmbsize = lmb.memory.region[i].size; @@ -349,10 +334,13 @@ u64 __init __lmb_alloc_base(u64 size, u64 align, u64 max_addr) } else continue; - while ((lmbbase <= base) && - ((j = lmb_overlaps_region(&lmb.reserved, base, size)) >= 0) ) + while (lmbbase <= base) { + j = lmb_overlaps_region(&lmb.reserved, base, size); + if (j < 0) + break; base = lmb_align_down(lmb.reserved.region[j].base - size, align); + } if ((base != 0) && (lmbbase <= base)) break; @@ -387,7 +375,7 @@ void __init lmb_enforce_memory_limit(u64 memory_limit) u64 limit; struct lmb_property *p; - if (! memory_limit) + if (!memory_limit) return; /* Truncate the lmb regions to satisfy the memory limit. */ |