diff options
Diffstat (limited to 'arch/powerpc/mm/mem.c')
| -rw-r--r-- | arch/powerpc/mm/mem.c | 39 |
1 files changed, 6 insertions, 33 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 33cc6f676fa6..81f251fc4169 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -80,11 +80,6 @@ static inline pte_t *virt_to_kpte(unsigned long vaddr) #define TOP_ZONE ZONE_NORMAL #endif -int page_is_ram(unsigned long pfn) -{ - return memblock_is_memory(__pfn_to_phys(pfn)); -} - pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, unsigned long size, pgprot_t vma_prot) { @@ -176,34 +171,6 @@ int __meminit arch_remove_memory(int nid, u64 start, u64 size, #endif #endif /* CONFIG_MEMORY_HOTPLUG */ -/* - * walk_memory_resource() needs to make sure there is no holes in a given - * memory range. PPC64 does not maintain the memory layout in /proc/iomem. - * Instead it maintains it in memblock.memory structures. Walk through the - * memory regions, find holes and callback for contiguous regions. - */ -int -walk_system_ram_range(unsigned long start_pfn, unsigned long nr_pages, - void *arg, int (*func)(unsigned long, unsigned long, void *)) -{ - struct memblock_region *reg; - unsigned long end_pfn = start_pfn + nr_pages; - unsigned long tstart, tend; - int ret = -1; - - for_each_memblock(memory, reg) { - tstart = max(start_pfn, memblock_region_memory_base_pfn(reg)); - tend = min(end_pfn, memblock_region_memory_end_pfn(reg)); - if (tstart >= tend) - continue; - ret = (*func)(tstart, tend - tstart, arg); - if (ret) - break; - } - return ret; -} -EXPORT_SYMBOL_GPL(walk_system_ram_range); - #ifndef CONFIG_NEED_MULTIPLE_NODES void __init mem_topology_setup(void) { @@ -585,3 +552,9 @@ int devmem_is_allowed(unsigned long pfn) return 0; } #endif /* CONFIG_STRICT_DEVMEM */ + +/* + * This is defined in kernel/resource.c but only powerpc needs to export it, for + * the EHEA driver. Drop this when drivers/net/ethernet/ibm/ehea is removed. + */ +EXPORT_SYMBOL_GPL(walk_system_ram_range); |