diff options
| author | Andy Whitcroft <apw@shadowen.org> | 2005-06-23 00:08:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-23 09:45:06 -0700 |
| commit | 145e664231648121026d470094c200851a446a73 (patch) | |
| tree | c9362f4ec3e3114afb9b7134ae89152cbbc73cd4 /arch/ppc64 | |
| parent | 74b30be2e183bd9a12d0350698996e3d1969f290 (diff) | |
[PATCH] ppc64: sparsemem memory model
Provide the architecture specific implementation for SPARSEMEM for PPC64
systems.
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Mike Kravetz <kravetz@us.ibm.com> (in part)
Signed-off-by: Martin Bligh <mbligh@aracnet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ppc64')
| -rw-r--r-- | arch/ppc64/Kconfig | 13 | ||||
| -rw-r--r-- | arch/ppc64/kernel/setup.c | 1 | ||||
| -rw-r--r-- | arch/ppc64/mm/Makefile | 2 | ||||
| -rw-r--r-- | arch/ppc64/mm/init.c | 18 |
4 files changed, 27 insertions, 7 deletions
diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig index c92d48fe06e..6448231cb10 100644 --- a/arch/ppc64/Kconfig +++ b/arch/ppc64/Kconfig @@ -198,6 +198,13 @@ config HMT This option enables hardware multithreading on RS64 cpus. pSeries systems p620 and p660 have such a cpu type. +config ARCH_SELECT_MEMORY_MODEL + def_bool y + +config ARCH_FLATMEM_ENABLE + def_bool y + depends on !NUMA + config ARCH_DISCONTIGMEM_ENABLE def_bool y depends on SMP && PPC_PSERIES @@ -209,6 +216,10 @@ config ARCH_DISCONTIGMEM_DEFAULT config ARCH_FLATMEM_ENABLE def_bool y +config ARCH_SPARSEMEM_ENABLE + def_bool y + depends on ARCH_DISCONTIGMEM_ENABLE + source "mm/Kconfig" config HAVE_ARCH_EARLY_PFN_TO_NID @@ -229,7 +240,7 @@ config NODES_SPAN_OTHER_NODES config NUMA bool "NUMA support" - depends on DISCONTIGMEM + default y if DISCONTIGMEM || SPARSEMEM config SCHED_SMT bool "SMT (Hyperthreading) scheduler support" diff --git a/arch/ppc64/kernel/setup.c b/arch/ppc64/kernel/setup.c index 8e439a81764..9e70ac90dec 100644 --- a/arch/ppc64/kernel/setup.c +++ b/arch/ppc64/kernel/setup.c @@ -1055,6 +1055,7 @@ void __init setup_arch(char **cmdline_p) /* set up the bootmem stuff with available memory */ do_init_bootmem(); + sparse_init(); /* initialize the syscall map in systemcfg */ setup_syscall_map(); diff --git a/arch/ppc64/mm/Makefile b/arch/ppc64/mm/Makefile index ac522d57b2a..3695d00d347 100644 --- a/arch/ppc64/mm/Makefile +++ b/arch/ppc64/mm/Makefile @@ -6,6 +6,6 @@ EXTRA_CFLAGS += -mno-minimal-toc obj-y := fault.o init.o imalloc.o hash_utils.o hash_low.o tlb.o \ slb_low.o slb.o stab.o mmap.o -obj-$(CONFIG_DISCONTIGMEM) += numa.o +obj-$(CONFIG_NEED_MULTIPLE_NODES) += numa.o obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o obj-$(CONFIG_PPC_MULTIPLATFORM) += hash_native.o diff --git a/arch/ppc64/mm/init.c b/arch/ppc64/mm/init.c index 29dbe084c21..b50b3a446db 100644 --- a/arch/ppc64/mm/init.c +++ b/arch/ppc64/mm/init.c @@ -531,7 +531,7 @@ EXPORT_SYMBOL(page_is_ram); * Initialize the bootmem system and give it all the memory we * have available. */ -#ifndef CONFIG_DISCONTIGMEM +#ifndef CONFIG_NEED_MULTIPLE_NODES void __init do_init_bootmem(void) { unsigned long i; @@ -553,12 +553,20 @@ void __init do_init_bootmem(void) max_pfn = max_low_pfn; - /* add all physical memory to the bootmem map. Also find the first */ + /* Add all physical memory to the bootmem map, mark each area + * present. + */ for (i=0; i < lmb.memory.cnt; i++) { unsigned long physbase, size; + unsigned long start_pfn, end_pfn; physbase = lmb.memory.region[i].physbase; size = lmb.memory.region[i].size; + + start_pfn = physbase >> PAGE_SHIFT; + end_pfn = start_pfn + (size >> PAGE_SHIFT); + memory_present(0, start_pfn, end_pfn); + free_bootmem(physbase, size); } @@ -597,7 +605,7 @@ void __init paging_init(void) free_area_init_node(0, NODE_DATA(0), zones_size, __pa(PAGE_OFFSET) >> PAGE_SHIFT, zholes_size); } -#endif /* CONFIG_DISCONTIGMEM */ +#endif /* ! CONFIG_NEED_MULTIPLE_NODES */ static struct kcore_list kcore_vmem; @@ -628,7 +636,7 @@ module_init(setup_kcore); void __init mem_init(void) { -#ifdef CONFIG_DISCONTIGMEM +#ifdef CONFIG_NEED_MULTIPLE_NODES int nid; #endif pg_data_t *pgdat; @@ -639,7 +647,7 @@ void __init mem_init(void) num_physpages = max_low_pfn; /* RAM is assumed contiguous */ high_memory = (void *) __va(max_low_pfn * PAGE_SIZE); -#ifdef CONFIG_DISCONTIGMEM +#ifdef CONFIG_NEED_MULTIPLE_NODES for_each_online_node(nid) { if (NODE_DATA(nid)->node_spanned_pages != 0) { printk("freeing bootmem node %x\n", nid); |