[PATCH 20/43] memblock: Change u64 to phys_addr_t
in [Kernel]
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From: Benjamin Herrenschmidt on 6 Aug 2010 01:30 Let's not waste space and cycles on archs that don't support >32-bit physical address space. Signed-off-by: Benjamin Herrenschmidt <benh(a)kernel.crashing.org> --- include/linux/memblock.h | 48 +++++++++--------- mm/memblock.c | 118 +++++++++++++++++++++++---------------------- 2 files changed, 84 insertions(+), 82 deletions(-) diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 71b8edc..b65045a 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -21,19 +21,19 @@ #define MAX_MEMBLOCK_REGIONS 128 struct memblock_region { - u64 base; - u64 size; + phys_addr_t base; + phys_addr_t size; }; struct memblock_type { unsigned long cnt; - u64 size; + phys_addr_t size; struct memblock_region regions[MAX_MEMBLOCK_REGIONS+1]; }; struct memblock { unsigned long debug; - u64 current_limit; + phys_addr_t current_limit; struct memblock_type memory; struct memblock_type reserved; }; @@ -42,34 +42,34 @@ extern struct memblock memblock; extern void __init memblock_init(void); extern void __init memblock_analyze(void); -extern long memblock_add(u64 base, u64 size); -extern long memblock_remove(u64 base, u64 size); -extern long __init memblock_free(u64 base, u64 size); -extern long __init memblock_reserve(u64 base, u64 size); +extern long memblock_add(phys_addr_t base, phys_addr_t size); +extern long memblock_remove(phys_addr_t base, phys_addr_t size); +extern long __init memblock_free(phys_addr_t base, phys_addr_t size); +extern long __init memblock_reserve(phys_addr_t base, phys_addr_t size); -extern u64 __init memblock_alloc_nid(u64 size, u64 align, int nid); -extern u64 __init memblock_alloc(u64 size, u64 align); +extern phys_addr_t __init memblock_alloc_nid(phys_addr_t size, phys_addr_t align, int nid); +extern phys_addr_t __init memblock_alloc(phys_addr_t size, phys_addr_t align); /* Flags for memblock_alloc_base() amd __memblock_alloc_base() */ -#define MEMBLOCK_ALLOC_ANYWHERE (~(u64)0) +#define MEMBLOCK_ALLOC_ANYWHERE (~(phys_addr_t)0) #define MEMBLOCK_ALLOC_ACCESSIBLE 0 -extern u64 __init memblock_alloc_base(u64 size, - u64, u64 max_addr); -extern u64 __init __memblock_alloc_base(u64 size, - u64 align, u64 max_addr); -extern u64 __init memblock_phys_mem_size(void); -extern u64 memblock_end_of_DRAM(void); -extern void __init memblock_enforce_memory_limit(u64 memory_limit); -extern int memblock_is_memory(u64 addr); -extern int memblock_is_region_memory(u64 base, u64 size); -extern int __init memblock_is_reserved(u64 addr); -extern int memblock_is_region_reserved(u64 base, u64 size); +extern phys_addr_t __init memblock_alloc_base(phys_addr_t size, + phys_addr_t, phys_addr_t max_addr); +extern phys_addr_t __init __memblock_alloc_base(phys_addr_t size, + phys_addr_t align, phys_addr_t max_addr); +extern phys_addr_t __init memblock_phys_mem_size(void); +extern phys_addr_t memblock_end_of_DRAM(void); +extern void __init memblock_enforce_memory_limit(phys_addr_t memory_limit); +extern int memblock_is_memory(phys_addr_t addr); +extern int memblock_is_region_memory(phys_addr_t base, phys_addr_t size); +extern int __init memblock_is_reserved(phys_addr_t addr); +extern int memblock_is_region_reserved(phys_addr_t base, phys_addr_t size); extern void memblock_dump_all(void); /* Provided by the architecture */ -extern u64 memblock_nid_range(u64 start, u64 end, int *nid); +extern phys_addr_t memblock_nid_range(phys_addr_t start, phys_addr_t end, int *nid); /** * memblock_set_current_limit - Set the current allocation limit to allow @@ -77,7 +77,7 @@ extern u64 memblock_nid_range(u64 start, u64 end, int *nid); * accessible during boot * @limit: New limit value (physical address) */ -extern void memblock_set_current_limit(u64 limit); +extern void memblock_set_current_limit(phys_addr_t limit); /* diff --git a/mm/memblock.c b/mm/memblock.c index 73d903e..81da635 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -55,13 +55,14 @@ void memblock_dump_all(void) memblock_dump(&memblock.reserved, "reserved"); } -static unsigned long memblock_addrs_overlap(u64 base1, u64 size1, u64 base2, - u64 size2) +static unsigned long memblock_addrs_overlap(phys_addr_t base1, phys_addr_t size1, + phys_addr_t base2, phys_addr_t size2) { return ((base1 < (base2 + size2)) && (base2 < (base1 + size1))); } -static long memblock_addrs_adjacent(u64 base1, u64 size1, u64 base2, u64 size2) +static long memblock_addrs_adjacent(phys_addr_t base1, phys_addr_t size1, + phys_addr_t base2, phys_addr_t size2) { if (base2 == base1 + size1) return 1; @@ -72,12 +73,12 @@ static long memblock_addrs_adjacent(u64 base1, u64 size1, u64 base2, u64 size2) } static long memblock_regions_adjacent(struct memblock_type *type, - unsigned long r1, unsigned long r2) + unsigned long r1, unsigned long r2) { - u64 base1 = type->regions[r1].base; - u64 size1 = type->regions[r1].size; - u64 base2 = type->regions[r2].base; - u64 size2 = type->regions[r2].size; + phys_addr_t base1 = type->regions[r1].base; + phys_addr_t size1 = type->regions[r1].size; + phys_addr_t base2 = type->regions[r2].base; + phys_addr_t size2 = type->regions[r2].size; return memblock_addrs_adjacent(base1, size1, base2, size2); } @@ -128,7 +129,7 @@ void __init memblock_analyze(void) memblock.memory.size += memblock.memory.regions[i].size; } -static long memblock_add_region(struct memblock_type *type, u64 base, u64 size) +static long memblock_add_region(struct memblock_type *type, phys_addr_t base, phys_addr_t size) { unsigned long coalesced = 0; long adjacent, i; @@ -141,8 +142,8 @@ static long memblock_add_region(struct memblock_type *type, u64 base, u64 size) /* First try and coalesce this MEMBLOCK with another. */ for (i = 0; i < type->cnt; i++) { - u64 rgnbase = type->regions[i].base; - u64 rgnsize = type->regions[i].size; + phys_addr_t rgnbase = type->regions[i].base; + phys_addr_t rgnsize = type->regions[i].size; if ((rgnbase == base) && (rgnsize == size)) /* Already have this region, so we're done */ @@ -192,16 +193,16 @@ static long memblock_add_region(struct memblock_type *type, u64 base, u64 size) return 0; } -long memblock_add(u64 base, u64 size) +long memblock_add(phys_addr_t base, phys_addr_t size) { return memblock_add_region(&memblock.memory, base, size); } -static long __memblock_remove(struct memblock_type *type, u64 base, u64 size) +static long __memblock_remove(struct memblock_type *type, phys_addr_t base, phys_addr_t size) { - u64 rgnbegin, rgnend; - u64 end = base + size; + phys_addr_t rgnbegin, rgnend; + phys_addr_t end = base + size; int i; rgnbegin = rgnend = 0; /* supress gcc warnings */ @@ -246,17 +247,17 @@ static long __memblock_remove(struct memblock_type *type, u64 base, u64 size) return memblock_add_region(type, end, rgnend - end); } -long memblock_remove(u64 base, u64 size) +long memblock_remove(phys_addr_t base, phys_addr_t size) { return __memblock_remove(&memblock.memory, base, size); } -long __init memblock_free(u64 base, u64 size) +long __init memblock_free(phys_addr_t base, phys_addr_t size) { return __memblock_remove(&memblock.reserved, base, size); } -long __init memblock_reserve(u64 base, u64 size) +long __init memblock_reserve(phys_addr_t base, phys_addr_t size) { struct memblock_type *_rgn = &memblock.reserved; @@ -265,13 +266,13 @@ long __init memblock_reserve(u64 base, u64 size) return memblock_add_region(_rgn, base, size); } -long memblock_overlaps_region(struct memblock_type *type, u64 base, u64 size) +long memblock_overlaps_region(struct memblock_type *type, phys_addr_t base, phys_addr_t size) { unsigned long i; for (i = 0; i < type->cnt; i++) { - u64 rgnbase = type->regions[i].base; - u64 rgnsize = type->regions[i].size; + phys_addr_t rgnbase = type->regions[i].base; + phys_addr_t rgnsize = type->regions[i].size; if (memblock_addrs_overlap(base, size, rgnbase, rgnsize)) break; } @@ -279,20 +280,20 @@ long memblock_overlaps_region(struct memblock_type *type, u64 base, u64 size) return (i < type->cnt) ? i : -1; } -static u64 memblock_align_down(u64 addr, u64 size) +static phys_addr_t memblock_align_down(phys_addr_t addr, phys_addr_t size) { return addr & ~(size - 1); } -static u64 memblock_align_up(u64 addr, u64 size) +static phys_addr_t memblock_align_up(phys_addr_t addr, phys_addr_t size) { return (addr + (size - 1)) & ~(size - 1); } -static u64 __init memblock_alloc_region(u64 start, u64 end, - u64 size, u64 align) +static phys_addr_t __init memblock_alloc_region(phys_addr_t start, phys_addr_t end, + phys_addr_t size, phys_addr_t align) { - u64 base, res_base; + phys_addr_t base, res_base; long j; base = memblock_align_down((end - size), align); @@ -301,7 +302,7 @@ static u64 __init memblock_alloc_region(u64 start, u64 end, if (j < 0) { /* this area isn't reserved, take it */ if (memblock_add_region(&memblock.reserved, base, size) < 0) - base = ~(u64)0; + base = ~(phys_addr_t)0; return base; } res_base = memblock.reserved.regions[j].base; @@ -310,42 +311,43 @@ static u64 __init memblock_alloc_region(u64 start, u64 end, base = memblock_align_down(res_base - size, align); } - return ~(u64)0; + return ~(phys_addr_t)0; } -u64 __weak __init memblock_nid_range(u64 start, u64 end, int *nid) +phys_addr_t __weak __init memblock_nid_range(phys_addr_t start, phys_addr_t end, int *nid) { *nid = 0; return end; } -static u64 __init memblock_alloc_nid_region(struct memblock_region *mp, - u64 size, u64 align, int nid) +static phys_addr_t __init memblock_alloc_nid_region(struct memblock_region *mp, + phys_addr_t size, + phys_addr_t align, int nid) { - u64 start, end; + phys_addr_t start, end; start = mp->base; end = start + mp->size; start = memblock_align_up(start, align); while (start < end) { - u64 this_end; + phys_addr_t this_end; int this_nid; this_end = memblock_nid_range(start, end, &this_nid); if (this_nid == nid) { - u64 ret = memblock_alloc_region(start, this_end, size, align); - if (ret != ~(u64)0) + phys_addr_t ret = memblock_alloc_region(start, this_end, size, align); + if (ret != ~(phys_addr_t)0) return ret; } start = this_end; } - return ~(u64)0; + return ~(phys_addr_t)0; } -u64 __init memblock_alloc_nid(u64 size, u64 align, int nid) +phys_addr_t __init memblock_alloc_nid(phys_addr_t size, phys_addr_t align, int nid) { struct memblock_type *mem = &memblock.memory; int i; @@ -359,23 +361,23 @@ u64 __init memblock_alloc_nid(u64 size, u64 align, int nid) size = memblock_align_up(size, align); for (i = 0; i < mem->cnt; i++) { - u64 ret = memblock_alloc_nid_region(&mem->regions[i], + phys_addr_t ret = memblock_alloc_nid_region(&mem->regions[i], size, align, nid); - if (ret != ~(u64)0) + if (ret != ~(phys_addr_t)0) return ret; } return memblock_alloc(size, align); } -u64 __init memblock_alloc(u64 size, u64 align) +phys_addr_t __init memblock_alloc(phys_addr_t size, phys_addr_t align) { return memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ACCESSIBLE); } -u64 __init memblock_alloc_base(u64 size, u64 align, u64 max_addr) +phys_addr_t __init memblock_alloc_base(phys_addr_t size, phys_addr_t align, phys_addr_t max_addr) { - u64 alloc; + phys_addr_t alloc; alloc = __memblock_alloc_base(size, align, max_addr); @@ -386,11 +388,11 @@ u64 __init memblock_alloc_base(u64 size, u64 align, u64 max_addr) return alloc; } -u64 __init __memblock_alloc_base(u64 size, u64 align, u64 max_addr) +phys_addr_t __init __memblock_alloc_base(phys_addr_t size, phys_addr_t align, phys_addr_t max_addr) { long i; - u64 base = 0; - u64 res_base; + phys_addr_t base = 0; + phys_addr_t res_base; BUG_ON(0 == size); @@ -405,26 +407,26 @@ u64 __init __memblock_alloc_base(u64 size, u64 align, u64 max_addr) * top of memory */ for (i = memblock.memory.cnt - 1; i >= 0; i--) { - u64 memblockbase = memblock.memory.regions[i].base; - u64 memblocksize = memblock.memory.regions[i].size; + phys_addr_t memblockbase = memblock.memory.regions[i].base; + phys_addr_t memblocksize = memblock.memory.regions[i].size; if (memblocksize < size) continue; base = min(memblockbase + memblocksize, max_addr); res_base = memblock_alloc_region(memblockbase, base, size, align); - if (res_base != ~(u64)0) + if (res_base != ~(phys_addr_t)0) return res_base; } return 0; } /* You must call memblock_analyze() before this. */ -u64 __init memblock_phys_mem_size(void) +phys_addr_t __init memblock_phys_mem_size(void) { return memblock.memory.size; } -u64 memblock_end_of_DRAM(void) +phys_addr_t memblock_end_of_DRAM(void) { int idx = memblock.memory.cnt - 1; @@ -432,10 +434,10 @@ u64 memblock_end_of_DRAM(void) } /* You must call memblock_analyze() after this. */ -void __init memblock_enforce_memory_limit(u64 memory_limit) +void __init memblock_enforce_memory_limit(phys_addr_t memory_limit) { unsigned long i; - u64 limit; + phys_addr_t limit; struct memblock_region *p; if (!memory_limit) @@ -472,7 +474,7 @@ void __init memblock_enforce_memory_limit(u64 memory_limit) } } -static int memblock_search(struct memblock_type *type, u64 addr) +static int memblock_search(struct memblock_type *type, phys_addr_t addr) { unsigned int left = 0, right = type->cnt; @@ -490,17 +492,17 @@ static int memblock_search(struct memblock_type *type, u64 addr) return -1; } -int __init memblock_is_reserved(u64 addr) +int __init memblock_is_reserved(phys_addr_t addr) { return memblock_search(&memblock.reserved, addr) != -1; } -int memblock_is_memory(u64 addr) +int memblock_is_memory(phys_addr_t addr) { return memblock_search(&memblock.memory, addr) != -1; } -int memblock_is_region_memory(u64 base, u64 size) +int memblock_is_region_memory(phys_addr_t base, phys_addr_t size) { int idx = memblock_search(&memblock.reserved, base); @@ -511,13 +513,13 @@ int memblock_is_region_memory(u64 base, u64 size) memblock.reserved.regions[idx].size) >= (base + size); } -int memblock_is_region_reserved(u64 base, u64 size) +int memblock_is_region_reserved(phys_addr_t base, phys_addr_t size) { return memblock_overlaps_region(&memblock.reserved, base, size) >= 0; } -void __init memblock_set_current_limit(u64 limit) +void __init memblock_set_current_limit(phys_addr_t limit) { memblock.current_limit = limit; } -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |