diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/ia64/mm/numa.c')
-rw-r--r-- | ANDROID_3.4.5/arch/ia64/mm/numa.c | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/ANDROID_3.4.5/arch/ia64/mm/numa.c b/ANDROID_3.4.5/arch/ia64/mm/numa.c deleted file mode 100644 index 3efea7d0..00000000 --- a/ANDROID_3.4.5/arch/ia64/mm/numa.c +++ /dev/null @@ -1,92 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * This file contains NUMA specific variables and functions which can - * be split away from DISCONTIGMEM and are used on NUMA machines with - * contiguous memory. - * - * 2002/08/07 Erich Focht <efocht@ess.nec.de> - */ - -#include <linux/cpu.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/node.h> -#include <linux/init.h> -#include <linux/bootmem.h> -#include <linux/module.h> -#include <asm/mmzone.h> -#include <asm/numa.h> - - -/* - * The following structures are usually initialized by ACPI or - * similar mechanisms and describe the NUMA characteristics of the machine. - */ -int num_node_memblks; -struct node_memblk_s node_memblk[NR_NODE_MEMBLKS]; -struct node_cpuid_s node_cpuid[NR_CPUS] = - { [0 ... NR_CPUS-1] = { .phys_id = 0, .nid = NUMA_NO_NODE } }; - -/* - * This is a matrix with "distances" between nodes, they should be - * proportional to the memory access latency ratios. - */ -u8 numa_slit[MAX_NUMNODES * MAX_NUMNODES]; - -/* Identify which cnode a physical address resides on */ -int -paddr_to_nid(unsigned long paddr) -{ - int i; - - for (i = 0; i < num_node_memblks; i++) - if (paddr >= node_memblk[i].start_paddr && - paddr < node_memblk[i].start_paddr + node_memblk[i].size) - break; - - return (i < num_node_memblks) ? node_memblk[i].nid : (num_node_memblks ? -1 : 0); -} - -#if defined(CONFIG_SPARSEMEM) && defined(CONFIG_NUMA) -/* - * Because of holes evaluate on section limits. - * If the section of memory exists, then return the node where the section - * resides. Otherwise return node 0 as the default. This is used by - * SPARSEMEM to allocate the SPARSEMEM sectionmap on the NUMA node where - * the section resides. - */ -int __meminit __early_pfn_to_nid(unsigned long pfn) -{ - int i, section = pfn >> PFN_SECTION_SHIFT, ssec, esec; - - for (i = 0; i < num_node_memblks; i++) { - ssec = node_memblk[i].start_paddr >> PA_SECTION_SHIFT; - esec = (node_memblk[i].start_paddr + node_memblk[i].size + - ((1L << PA_SECTION_SHIFT) - 1)) >> PA_SECTION_SHIFT; - if (section >= ssec && section < esec) - return node_memblk[i].nid; - } - - return -1; -} - -#ifdef CONFIG_MEMORY_HOTPLUG -/* - * SRAT information is stored in node_memblk[], then we can use SRAT - * information at memory-hot-add if necessary. - */ - -int memory_add_physaddr_to_nid(u64 addr) -{ - int nid = paddr_to_nid(addr); - if (nid < 0) - return 0; - return nid; -} - -EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); -#endif -#endif |