Messages in this thread Patch in this message |  | | | From | Tejun Heo <> | | Subject | [PATCH 22/33] x86-64, NUMA: Add common find_node_by_addr() | | Date | Wed, 16 Feb 2011 13:20:56 +0100 |
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srat_64.c and amdtopology_64.c had their own versions of find_node_by_addr() which were basically the same. Add common one in numa_64.c and remove the duplicates.
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> --- arch/x86/include/asm/numa_64.h | 1 + arch/x86/mm/amdtopology_64.c | 13 ------------- arch/x86/mm/numa_64.c | 19 +++++++++++++++++++ arch/x86/mm/srat_64.c | 18 ------------------ 4 files changed, 20 insertions(+), 31 deletions(-) diff --git a/arch/x86/include/asm/numa_64.h b/arch/x86/include/asm/numa_64.h index fbc9d33..867d41b 100644 --- a/arch/x86/include/asm/numa_64.h +++ b/arch/x86/include/asm/numa_64.h @@ -36,6 +36,7 @@ extern int __init numa_add_memblk(int nodeid, u64 start, u64 end); #define FAKE_NODE_MIN_SIZE ((u64)32 << 20) #define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL)) void numa_emu_cmdline(char *); +int __init find_node_by_addr(unsigned long addr); #endif /* CONFIG_NUMA_EMU */ #else static inline int numa_cpu_node(int cpu) { return NUMA_NO_NODE; } diff --git a/arch/x86/mm/amdtopology_64.c b/arch/x86/mm/amdtopology_64.c index 90cf297..8f7a5eb 100644 --- a/arch/x86/mm/amdtopology_64.c +++ b/arch/x86/mm/amdtopology_64.c @@ -205,19 +205,6 @@ static s16 fake_apicid_to_node[MAX_LOCAL_APIC] __initdata = { [0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE }; -static int __init find_node_by_addr(unsigned long addr) -{ - int ret = NUMA_NO_NODE; - int i; - - for (i = 0; i < 8; i++) - if (addr >= numa_nodes[i].start && addr < numa_nodes[i].end) { - ret = i; - break; - } - return ret; -} - /* * For NUMA emulation, fake proximity domain (_PXM) to node id mappings must be * setup to represent the physical topology but reflect the emulated diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index 20aa1d3..681bc0d 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -430,6 +430,25 @@ void __init numa_emu_cmdline(char *str) cmdline = str; } +int __init find_node_by_addr(unsigned long addr) +{ + int ret = NUMA_NO_NODE; + int i; + + for_each_node_mask(i, mem_nodes_parsed) { + /* + * Find the real node that this emulated node appears on. For + * the sake of simplicity, we only use a real node's starting + * address to determine which emulated node it appears on. + */ + if (addr >= numa_nodes[i].start && addr < numa_nodes[i].end) { + ret = i; + break; + } + } + return ret; +} + static int __init setup_physnodes(unsigned long start, unsigned long end) { int ret = 0; diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c index d56eff8..51d0733 100644 --- a/arch/x86/mm/srat_64.c +++ b/arch/x86/mm/srat_64.c @@ -277,24 +277,6 @@ static int fake_node_to_pxm_map[MAX_NUMNODES] __initdata = { static s16 fake_apicid_to_node[MAX_LOCAL_APIC] __initdata = { [0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE }; -static int __init find_node_by_addr(unsigned long addr) -{ - int ret = NUMA_NO_NODE; - int i; - - for_each_node_mask(i, mem_nodes_parsed) { - /* - * Find the real node that this emulated node appears on. For - * the sake of simplicity, we only use a real node's starting - * address to determine which emulated node it appears on. - */ - if (addr >= numa_nodes[i].start && addr < numa_nodes[i].end) { - ret = i; - break; - } - } - return ret; -} /* * In NUMA emulation, we need to setup proximity domain (_PXM) to node ID -- 1.7.1
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