diff options
| -rw-r--r-- | include/linux/memblock.h | 2 | ||||
| -rw-r--r-- | mm/memblock.c | 27 |
2 files changed, 14 insertions, 15 deletions
diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 6ac91c5b2fd3..5bb15005f0f7 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -30,12 +30,12 @@ struct memblock_region { struct memblock_type { unsigned long cnt; /* number of regions */ unsigned long max; /* size of the allocated array */ + phys_addr_t total_size; /* size of all regions */ struct memblock_region *regions; }; struct memblock { phys_addr_t current_limit; - phys_addr_t memory_size; /* Updated by memblock_analyze() */ struct memblock_type memory; struct memblock_type reserved; }; diff --git a/mm/memblock.c b/mm/memblock.c index b44875f5a996..f39964184b4a 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -179,12 +179,14 @@ int __init_memblock memblock_reserve_reserved_regions(void) static void __init_memblock memblock_remove_region(struct memblock_type *type, unsigned long r) { + type->total_size -= type->regions[r].size; memmove(&type->regions[r], &type->regions[r + 1], (type->cnt - (r + 1)) * sizeof(type->regions[r])); type->cnt--; /* Special case for empty arrays */ if (type->cnt == 0) { + WARN_ON(type->total_size != 0); type->cnt = 1; type->regions[0].base = 0; type->regions[0].size = 0; @@ -314,6 +316,7 @@ static void __init_memblock memblock_insert_region(struct memblock_type *type, rgn->size = size; memblock_set_region_node(rgn, nid); type->cnt++; + type->total_size += size; } /** @@ -340,10 +343,11 @@ static int __init_memblock memblock_add_region(struct memblock_type *type, /* special case for empty array */ if (type->regions[0].size == 0) { - WARN_ON(type->cnt != 1); + WARN_ON(type->cnt != 1 || type->total_size); type->regions[0].base = base; type->regions[0].size = size; memblock_set_region_node(&type->regions[0], MAX_NUMNODES); + type->total_size = size; return 0; } repeat: @@ -453,7 +457,8 @@ static int __init_memblock memblock_isolate_range(struct memblock_type *type, * to process the next region - the new top half. */ rgn->base = base; - rgn->size = rend - rgn->base; + rgn->size -= base - rbase; + type->total_size -= base - rbase; memblock_insert_region(type, i, rbase, base - rbase, memblock_get_region_node(rgn)); } else if (rend > end) { @@ -462,7 +467,8 @@ static int __init_memblock memblock_isolate_range(struct memblock_type *type, * current region - the new bottom half. */ rgn->base = end; - rgn->size = rend - rgn->base; + rgn->size -= end - rbase; + type->total_size -= end - rbase; memblock_insert_region(type, i--, rbase, end - rbase, memblock_get_region_node(rgn)); } else { @@ -784,10 +790,9 @@ phys_addr_t __init memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align, i * Remaining API functions */ -/* You must call memblock_analyze() before this. */ phys_addr_t __init memblock_phys_mem_size(void) { - return memblock.memory_size; + return memblock.memory.total_size; } /* lowest address */ @@ -803,7 +808,6 @@ phys_addr_t __init_memblock memblock_end_of_DRAM(void) return (memblock.memory.regions[idx].base + memblock.memory.regions[idx].size); } -/* You must call memblock_analyze() after this. */ void __init memblock_enforce_memory_limit(phys_addr_t limit) { unsigned long i; @@ -906,7 +910,9 @@ static void __init_memblock memblock_dump(struct memblock_type *type, char *name void __init_memblock __memblock_dump_all(void) { pr_info("MEMBLOCK configuration:\n"); - pr_info(" memory size = 0x%llx\n", (unsigned long long)memblock.memory_size); + pr_info(" memory size = %#llx reserved size = %#llx\n", + (unsigned long long)memblock.memory.total_size, + (unsigned long long)memblock.reserved.total_size); memblock_dump(&memblock.memory, "memory"); memblock_dump(&memblock.reserved, "reserved"); @@ -914,13 +920,6 @@ void __init_memblock __memblock_dump_all(void) void __init memblock_analyze(void) { - int i; - - memblock.memory_size = 0; - - for (i = 0; i < memblock.memory.cnt; i++) - memblock.memory_size += memblock.memory.regions[i].size; - /* We allow resizing from there */ memblock_can_resize = 1; } |