diff options
| -rw-r--r-- | arch/powerpc/Kconfig | 3 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/page.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/mm/mem.c | 39 | ||||
| -rw-r--r-- | kernel/resource.c | 4 |
4 files changed, 6 insertions, 41 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 9c70c2864657..08908219fba9 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -478,9 +478,6 @@ config ARCH_CPU_PROBE_RELEASE config ARCH_ENABLE_MEMORY_HOTPLUG def_bool y -config ARCH_HAS_WALK_MEMORY - def_bool y - config ARCH_ENABLE_MEMORY_HOTREMOVE def_bool y diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h index 5c5ea2413413..aa4497175bd3 100644 --- a/arch/powerpc/include/asm/page.h +++ b/arch/powerpc/include/asm/page.h @@ -326,7 +326,6 @@ struct page; extern void clear_user_page(void *page, unsigned long vaddr, struct page *pg); extern void copy_user_page(void *to, void *from, unsigned long vaddr, struct page *p); -extern int page_is_ram(unsigned long pfn); extern int devmem_is_allowed(unsigned long pfn); #ifdef CONFIG_PPC_SMLPAR 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); diff --git a/kernel/resource.c b/kernel/resource.c index 915c02e8e5dd..e81b17b53fa5 100644 --- a/kernel/resource.c +++ b/kernel/resource.c @@ -448,8 +448,6 @@ int walk_mem_res(u64 start, u64 end, void *arg, arg, func); } -#if !defined(CONFIG_ARCH_HAS_WALK_MEMORY) - /* * This function calls the @func callback against all memory ranges of type * System RAM which are marked as IORESOURCE_SYSTEM_RAM and IORESOUCE_BUSY. @@ -481,8 +479,6 @@ int walk_system_ram_range(unsigned long start_pfn, unsigned long nr_pages, return ret; } -#endif - static int __is_ram(unsigned long pfn, unsigned long nr_pages, void *arg) { return 1; |