diff options
author | Jiang Liu <liuj97@gmail.com> | 2013-07-03 22:04:04 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-03 23:07:36 (GMT) |
commit | 1132137e87898d0b6786d85a99de35ce196ecbfb (patch) | |
tree | e601ac94250ca358ea397832fd1f425d3d2bf1bc /arch | |
parent | 6879ea83c6d14e4f21bf48b5780ed549197c668b (diff) | |
download | linux-1132137e87898d0b6786d85a99de35ce196ecbfb.tar.xz |
mm/MIPS: prepare for removing num_physpages and simplify mem_init()
Prepare for removing num_physpages and simplify mem_init().
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Daney <david.daney@cavium.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: John Crispin <blogic@openwrt.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/mips/mm/init.c | 57 | ||||
-rw-r--r-- | arch/mips/pci/pci-lantiq.c | 2 | ||||
-rw-r--r-- | arch/mips/sgi-ip27/ip27-memory.c | 21 |
3 files changed, 21 insertions, 59 deletions
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index e7333f1..4e73f10 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -359,11 +359,24 @@ void __init paging_init(void) static struct kcore_list kcore_kseg0; #endif -void __init mem_init(void) +static inline void mem_init_free_highmem(void) { - unsigned long codesize, reservedpages, datasize, initsize; - unsigned long tmp, ram; +#ifdef CONFIG_HIGHMEM + unsigned long tmp; + for (tmp = highstart_pfn; tmp < highend_pfn; tmp++) { + struct page *page = pfn_to_page(tmp); + + if (!page_is_ram(tmp)) + SetPageReserved(page); + else + free_highmem_page(page); + } +#endif +} + +void __init mem_init(void) +{ #ifdef CONFIG_HIGHMEM #ifdef CONFIG_DISCONTIGMEM #error "CONFIG_HIGHMEM and CONFIG_DISCONTIGMEM dont work together yet" @@ -376,32 +389,8 @@ void __init mem_init(void) free_all_bootmem(); setup_zero_pages(); /* Setup zeroed pages. */ - - reservedpages = ram = 0; - for (tmp = 0; tmp < max_low_pfn; tmp++) - if (page_is_ram(tmp) && pfn_valid(tmp)) { - ram++; - if (PageReserved(pfn_to_page(tmp))) - reservedpages++; - } - num_physpages = ram; - -#ifdef CONFIG_HIGHMEM - for (tmp = highstart_pfn; tmp < highend_pfn; tmp++) { - struct page *page = pfn_to_page(tmp); - - if (!page_is_ram(tmp)) { - SetPageReserved(page); - continue; - } - free_highmem_page(page); - } - num_physpages += totalhigh_pages; -#endif - - codesize = (unsigned long) &_etext - (unsigned long) &_text; - datasize = (unsigned long) &_edata - (unsigned long) &_etext; - initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; + mem_init_free_highmem(); + mem_init_print_info(NULL); #ifdef CONFIG_64BIT if ((unsigned long) &_text > (unsigned long) CKSEG0) @@ -410,16 +399,6 @@ void __init mem_init(void) kclist_add(&kcore_kseg0, (void *) CKSEG0, 0x80000000 - 4, KCORE_TEXT); #endif - - printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, " - "%ldk reserved, %ldk data, %ldk init, %ldk highmem)\n", - nr_free_pages() << (PAGE_SHIFT-10), - ram << (PAGE_SHIFT-10), - codesize >> 10, - reservedpages << (PAGE_SHIFT-10), - datasize >> 10, - initsize >> 10, - totalhigh_pages << (PAGE_SHIFT-10)); } #endif /* !CONFIG_NEED_MULTIPLE_NODES */ diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c index 879077b..cb1ef99 100644 --- a/arch/mips/pci/pci-lantiq.c +++ b/arch/mips/pci/pci-lantiq.c @@ -89,7 +89,7 @@ static inline u32 ltq_calc_bar11mask(void) u32 mem, bar11mask; /* BAR11MASK value depends on available memory on system. */ - mem = num_physpages * PAGE_SIZE; + mem = get_num_physpages() * PAGE_SIZE; bar11mask = (0x0ffffff0 & ~((1 << (fls(mem) - 1)) - 1)) | 8; return bar11mask; diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c index aecac4a..a0c9e34 100644 --- a/arch/mips/sgi-ip27/ip27-memory.c +++ b/arch/mips/sgi-ip27/ip27-memory.c @@ -357,8 +357,6 @@ static void __init szmem(void) int slot; cnodeid_t node; - num_physpages = 0; - for_each_online_node(node) { nodebytes = 0; for (slot = 0; slot < MAX_MEM_SLOTS; slot++) { @@ -381,7 +379,6 @@ static void __init szmem(void) slot = MAX_MEM_SLOTS; continue; } - num_physpages += slot_psize; memblock_add_node(PFN_PHYS(slot_getbasepfn(node, slot)), PFN_PHYS(slot_psize), node); } @@ -480,10 +477,9 @@ void __init paging_init(void) void __init mem_init(void) { - unsigned long codesize, datasize, initsize, tmp; unsigned node; - high_memory = (void *) __va(num_physpages << PAGE_SHIFT); + high_memory = (void *) __va(get_num_physpages() << PAGE_SHIFT); for_each_online_node(node) { /* @@ -494,18 +490,5 @@ void __init mem_init(void) setup_zero_pages(); /* This comes from node 0 */ - codesize = (unsigned long) &_etext - (unsigned long) &_text; - datasize = (unsigned long) &_edata - (unsigned long) &_etext; - initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; - - tmp = nr_free_pages(); - printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, " - "%ldk reserved, %ldk data, %ldk init, %ldk highmem)\n", - tmp << (PAGE_SHIFT-10), - num_physpages << (PAGE_SHIFT-10), - codesize >> 10, - (num_physpages - tmp) << (PAGE_SHIFT-10), - datasize >> 10, - initsize >> 10, - totalhigh_pages << (PAGE_SHIFT-10)); + mem_init_print_info(NULL); } |