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author | Tejun Heo <tj@kernel.org> | 2011-02-16 12:13:06 +0100 |
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committer | Tejun Heo <tj@kernel.org> | 2011-02-16 12:13:06 +0100 |
commit | 86ef4dbf1f736bb1a4d567e043e3dd81b8b7860c (patch) | |
tree | 2e9663ee508b410908b3c90eb84d2161072e22d3 /arch | |
parent | 13081df5dd6eae1951a3c398fa17d3ed2037a78f (diff) | |
download | kernel_samsung_tuna-86ef4dbf1f736bb1a4d567e043e3dd81b8b7860c.zip kernel_samsung_tuna-86ef4dbf1f736bb1a4d567e043e3dd81b8b7860c.tar.gz kernel_samsung_tuna-86ef4dbf1f736bb1a4d567e043e3dd81b8b7860c.tar.bz2 |
x86, NUMA: Drop @start/last_pfn from initmem_init()
initmem_init() extensively accesses and modifies global data
structures and the parameters aren't even followed depending on which
path is being used. Drop @start/last_pfn and let it deal with
@max_pfn directly. This is in preparation for further NUMA init
cleanups.
- v2: x86-32 initmem_init() weren't updated breaking 32bit builds.
Fixed. Found by Yinghai.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Shaohui Zheng <shaohui.zheng@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/x86/include/asm/page_types.h | 3 | ||||
-rw-r--r-- | arch/x86/kernel/setup.c | 2 | ||||
-rw-r--r-- | arch/x86/mm/init_32.c | 3 | ||||
-rw-r--r-- | arch/x86/mm/init_64.c | 5 | ||||
-rw-r--r-- | arch/x86/mm/numa_32.c | 3 | ||||
-rw-r--r-- | arch/x86/mm/numa_64.c | 21 |
6 files changed, 14 insertions, 23 deletions
diff --git a/arch/x86/include/asm/page_types.h b/arch/x86/include/asm/page_types.h index 731d211..eb9ed00 100644 --- a/arch/x86/include/asm/page_types.h +++ b/arch/x86/include/asm/page_types.h @@ -56,8 +56,7 @@ extern unsigned long init_memory_mapping(unsigned long start, void init_memory_mapping_high(void); -extern void initmem_init(unsigned long start_pfn, unsigned long end_pfn, - int acpi, int k8); +extern void initmem_init(int acpi, int k8); extern void free_initmem(void); #endif /* !__ASSEMBLY__ */ diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index ac909ba..756d640 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1003,7 +1003,7 @@ void __init setup_arch(char **cmdline_p) amd = !amd_numa_init(0, max_pfn); #endif - initmem_init(0, max_pfn, acpi, amd); + initmem_init(acpi, amd); memblock_find_dma_reserve(); dma32_reserve_bootmem(); diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index c821074..16adb66 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -644,8 +644,7 @@ void __init find_low_pfn_range(void) } #ifndef CONFIG_NEED_MULTIPLE_NODES -void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn, - int acpi, int k8) +void __init initmem_init(int acpi, int k8) { #ifdef CONFIG_HIGHMEM highstart_pfn = highend_pfn = max_pfn; diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 194f273..04cc027 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -603,10 +603,9 @@ kernel_physical_mapping_init(unsigned long start, } #ifndef CONFIG_NUMA -void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn, - int acpi, int k8) +void __init initmem_init(int acpi, int k8) { - memblock_x86_register_active_regions(0, start_pfn, end_pfn); + memblock_x86_register_active_regions(0, 0, max_pfn); init_memory_mapping_high(); } #endif diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c index 505bb04..3249b37 100644 --- a/arch/x86/mm/numa_32.c +++ b/arch/x86/mm/numa_32.c @@ -352,8 +352,7 @@ static void init_remap_allocator(int nid) (ulong) node_remap_end_vaddr[nid]); } -void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn, - int acpi, int k8) +void __init initmem_init(int acpi, int k8) { int nid; long kva_target_pfn; diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index b7d78d7..d7e4aaf 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -579,8 +579,7 @@ static int __init numa_emulation(unsigned long start_pfn, } #endif /* CONFIG_NUMA_EMU */ -void __init initmem_init(unsigned long start_pfn, unsigned long last_pfn, - int acpi, int amd) +void __init initmem_init(int acpi, int amd) { int i; @@ -588,19 +587,16 @@ void __init initmem_init(unsigned long start_pfn, unsigned long last_pfn, nodes_clear(node_online_map); #ifdef CONFIG_NUMA_EMU - setup_physnodes(start_pfn << PAGE_SHIFT, last_pfn << PAGE_SHIFT, - acpi, amd); - if (cmdline && !numa_emulation(start_pfn, last_pfn, acpi, amd)) + setup_physnodes(0, max_pfn << PAGE_SHIFT, acpi, amd); + if (cmdline && !numa_emulation(0, max_pfn, acpi, amd)) return; - setup_physnodes(start_pfn << PAGE_SHIFT, last_pfn << PAGE_SHIFT, - acpi, amd); + setup_physnodes(0, max_pfn << PAGE_SHIFT, acpi, amd); nodes_clear(node_possible_map); nodes_clear(node_online_map); #endif #ifdef CONFIG_ACPI_NUMA - if (!numa_off && acpi && !acpi_scan_nodes(start_pfn << PAGE_SHIFT, - last_pfn << PAGE_SHIFT)) + if (!numa_off && acpi && !acpi_scan_nodes(0, max_pfn << PAGE_SHIFT)) return; nodes_clear(node_possible_map); nodes_clear(node_online_map); @@ -616,8 +612,7 @@ void __init initmem_init(unsigned long start_pfn, unsigned long last_pfn, numa_off ? "NUMA turned off" : "No NUMA configuration found"); printk(KERN_INFO "Faking a node at %016lx-%016lx\n", - start_pfn << PAGE_SHIFT, - last_pfn << PAGE_SHIFT); + 0LU, max_pfn << PAGE_SHIFT); /* setup dummy node covering all memory */ memnode_shift = 63; memnodemap = memnode.embedded_map; @@ -626,9 +621,9 @@ void __init initmem_init(unsigned long start_pfn, unsigned long last_pfn, node_set(0, node_possible_map); for (i = 0; i < MAX_LOCAL_APIC; i++) set_apicid_to_node(i, NUMA_NO_NODE); - memblock_x86_register_active_regions(0, start_pfn, last_pfn); + memblock_x86_register_active_regions(0, 0, max_pfn); init_memory_mapping_high(); - setup_node_bootmem(0, start_pfn << PAGE_SHIFT, last_pfn << PAGE_SHIFT); + setup_node_bootmem(0, 0, max_pfn << PAGE_SHIFT); numa_init_array(); } |