1 /* 2 * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99 3 * Adapted for the alpha wildfire architecture Jan 2001. 4 */ 5 #ifndef _ASM_MMZONE_H_ 6 #define _ASM_MMZONE_H_ 7 8 #include <linux/config.h> 9 #ifdef CONFIG_NUMA_SCHED 10 #include <linux/numa_sched.h> 11 #endif 12 #ifdef NOTYET 13 #include <asm/sn/types.h> 14 #include <asm/sn/addrs.h> 15 #include <asm/sn/arch.h> 16 #include <asm/sn/klkernvars.h> 17 #endif /* NOTYET */ 18 19 typedef struct plat_pglist_data { 20 pg_data_t gendata; 21 #ifdef NOTYET 22 kern_vars_t kern_vars; 23 #endif 24 #if defined(CONFIG_NUMA) && defined(CONFIG_NUMA_SCHED) 25 struct numa_schedule_data schedule_data; 26 #endif 27 } plat_pg_data_t; 28 29 struct bootmem_data_t; /* stupid forward decl. */ 30 31 /* 32 * Following are macros that are specific to this numa platform. 33 */ 34 35 extern plat_pg_data_t *plat_node_data[]; 36 37 #define ALPHA_PA_TO_NID(pa) \ 38 (alpha_mv.pa_to_nid \ 39 ? alpha_mv.pa_to_nid(pa) \ 40 : (0)) 41 #define NODE_MEM_START(nid) \ 42 (alpha_mv.node_mem_start \ 43 ? alpha_mv.node_mem_start(nid) \ 44 : (0UL)) 45 #define NODE_MEM_SIZE(nid) \ 46 (alpha_mv.node_mem_size \ 47 ? alpha_mv.node_mem_size(nid) \ 48 : ((nid) ? (0UL) : (~0UL))) 49 #define MAX_NUMNODES 128 /* marvel */ 50 51 #define PHYSADDR_TO_NID(pa) ALPHA_PA_TO_NID(pa) 52 #define PLAT_NODE_DATA(n) (plat_node_data[(n)]) 53 #define PLAT_NODE_DATA_STARTNR(n) \ 54 (PLAT_NODE_DATA(n)->gendata.node_start_mapnr) 55 #define PLAT_NODE_DATA_SIZE(n) (PLAT_NODE_DATA(n)->gendata.node_size) 56 57 #if 1 58 #define PLAT_NODE_DATA_LOCALNR(p, n) \ 59 (((p) - PLAT_NODE_DATA(n)->gendata.node_start_paddr) >> PAGE_SHIFT) 60 #else 61 static inline unsigned long PLAT_NODE_DATA_LOCALNR(unsigned long p,int n)62PLAT_NODE_DATA_LOCALNR(unsigned long p, int n) 63 { 64 unsigned long temp; 65 temp = p - PLAT_NODE_DATA(n)->gendata.node_start_paddr; 66 return (temp >> PAGE_SHIFT); 67 } 68 #endif 69 70 #ifdef CONFIG_DISCONTIGMEM 71 72 /* 73 * Following are macros that each numa implmentation must define. 74 */ 75 76 /* 77 * Given a kernel address, find the home node of the underlying memory. 78 */ 79 #define KVADDR_TO_NID(kaddr) PHYSADDR_TO_NID(__pa(kaddr)) 80 81 /* 82 * Return a pointer to the node data for node n. 83 */ 84 #define NODE_DATA(n) (&((PLAT_NODE_DATA(n))->gendata)) 85 86 /* 87 * NODE_MEM_MAP gives the kaddr for the mem_map of the node. 88 */ 89 #define NODE_MEM_MAP(nid) (NODE_DATA(nid)->node_mem_map) 90 91 /* 92 * Given a kaddr, ADDR_TO_MAPBASE finds the owning node of the memory 93 * and returns the mem_map of that node. 94 */ 95 #define ADDR_TO_MAPBASE(kaddr) \ 96 NODE_MEM_MAP(KVADDR_TO_NID((unsigned long)(kaddr))) 97 98 /* 99 * Given a kaddr, LOCAL_BASE_ADDR finds the owning node of the memory 100 * and returns the kaddr corresponding to first physical page in the 101 * node's mem_map. 102 */ 103 #define LOCAL_BASE_ADDR(kaddr) ((unsigned long)__va(NODE_DATA(KVADDR_TO_NID(kaddr))->node_start_paddr)) 104 105 #define LOCAL_MAP_NR(kvaddr) \ 106 (((unsigned long)(kvaddr)-LOCAL_BASE_ADDR(kvaddr)) >> PAGE_SHIFT) 107 108 #define kern_addr_valid(kaddr) test_bit(LOCAL_MAP_NR(kaddr), \ 109 NODE_DATA(KVADDR_TO_NID(kaddr))->valid_addr_bitmap) 110 111 #define virt_to_page(kaddr) (ADDR_TO_MAPBASE(kaddr) + LOCAL_MAP_NR(kaddr)) 112 #define VALID_PAGE(page) (((page) - mem_map) < max_mapnr) 113 114 #ifdef CONFIG_NUMA 115 #ifdef CONFIG_NUMA_SCHED 116 #define NODE_SCHEDULE_DATA(nid) (&((PLAT_NODE_DATA(nid))->schedule_data)) 117 #endif 118 119 #define cputonode(cpu) \ 120 (alpha_mv.cpuid_to_nid ? alpha_mv.cpuid_to_nid(cpu) : 0) 121 122 #define numa_node_id() cputonode(smp_processor_id()) 123 #endif /* CONFIG_NUMA */ 124 125 #endif /* CONFIG_DISCONTIGMEM */ 126 127 #endif /* _ASM_MMZONE_H_ */ 128