| /* |
| * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99 |
| * Adapted for the alpha wildfire architecture Jan 2001. |
| */ |
| #ifndef _ASM_MMZONE_H_ |
| #define _ASM_MMZONE_H_ |
| |
| #include <linux/config.h> |
| #ifdef CONFIG_NUMA_SCHED |
| #include <linux/numa_sched.h> |
| #endif |
| #ifdef NOTYET |
| #include <asm/sn/types.h> |
| #include <asm/sn/addrs.h> |
| #include <asm/sn/arch.h> |
| #include <asm/sn/klkernvars.h> |
| #endif /* NOTYET */ |
| |
| typedef struct plat_pglist_data { |
| pg_data_t gendata; |
| #ifdef NOTYET |
| kern_vars_t kern_vars; |
| #endif |
| #if defined(CONFIG_NUMA) && defined(CONFIG_NUMA_SCHED) |
| struct numa_schedule_data schedule_data; |
| #endif |
| } plat_pg_data_t; |
| |
| struct bootmem_data_t; /* stupid forward decl. */ |
| |
| /* |
| * Following are macros that are specific to this numa platform. |
| */ |
| |
| extern plat_pg_data_t *plat_node_data[]; |
| |
| #define ALPHA_PA_TO_NID(pa) \ |
| (alpha_mv.pa_to_nid \ |
| ? alpha_mv.pa_to_nid(pa) \ |
| : (0)) |
| #define NODE_MEM_START(nid) \ |
| (alpha_mv.node_mem_start \ |
| ? alpha_mv.node_mem_start(nid) \ |
| : (0UL)) |
| #define NODE_MEM_SIZE(nid) \ |
| (alpha_mv.node_mem_size \ |
| ? alpha_mv.node_mem_size(nid) \ |
| : ((nid) ? (0UL) : (~0UL))) |
| #define MAX_NUMNODES 128 /* marvel */ |
| |
| #define PHYSADDR_TO_NID(pa) ALPHA_PA_TO_NID(pa) |
| #define PLAT_NODE_DATA(n) (plat_node_data[(n)]) |
| #define PLAT_NODE_DATA_STARTNR(n) \ |
| (PLAT_NODE_DATA(n)->gendata.node_start_mapnr) |
| #define PLAT_NODE_DATA_SIZE(n) (PLAT_NODE_DATA(n)->gendata.node_size) |
| |
| #if 1 |
| #define PLAT_NODE_DATA_LOCALNR(p, n) \ |
| (((p) - PLAT_NODE_DATA(n)->gendata.node_start_paddr) >> PAGE_SHIFT) |
| #else |
| static inline unsigned long |
| PLAT_NODE_DATA_LOCALNR(unsigned long p, int n) |
| { |
| unsigned long temp; |
| temp = p - PLAT_NODE_DATA(n)->gendata.node_start_paddr; |
| return (temp >> PAGE_SHIFT); |
| } |
| #endif |
| |
| #ifdef CONFIG_DISCONTIGMEM |
| |
| /* |
| * Following are macros that each numa implmentation must define. |
| */ |
| |
| /* |
| * Given a kernel address, find the home node of the underlying memory. |
| */ |
| #define KVADDR_TO_NID(kaddr) PHYSADDR_TO_NID(__pa(kaddr)) |
| |
| /* |
| * Return a pointer to the node data for node n. |
| */ |
| #define NODE_DATA(n) (&((PLAT_NODE_DATA(n))->gendata)) |
| |
| /* |
| * NODE_MEM_MAP gives the kaddr for the mem_map of the node. |
| */ |
| #define NODE_MEM_MAP(nid) (NODE_DATA(nid)->node_mem_map) |
| |
| /* |
| * Given a kaddr, ADDR_TO_MAPBASE finds the owning node of the memory |
| * and returns the mem_map of that node. |
| */ |
| #define ADDR_TO_MAPBASE(kaddr) \ |
| NODE_MEM_MAP(KVADDR_TO_NID((unsigned long)(kaddr))) |
| |
| /* |
| * Given a kaddr, LOCAL_BASE_ADDR finds the owning node of the memory |
| * and returns the kaddr corresponding to first physical page in the |
| * node's mem_map. |
| */ |
| #define LOCAL_BASE_ADDR(kaddr) ((unsigned long)__va(NODE_DATA(KVADDR_TO_NID(kaddr))->node_start_paddr)) |
| |
| #define LOCAL_MAP_NR(kvaddr) \ |
| (((unsigned long)(kvaddr)-LOCAL_BASE_ADDR(kvaddr)) >> PAGE_SHIFT) |
| |
| #define kern_addr_valid(kaddr) test_bit(LOCAL_MAP_NR(kaddr), \ |
| NODE_DATA(KVADDR_TO_NID(kaddr))->valid_addr_bitmap) |
| |
| #define virt_to_page(kaddr) (ADDR_TO_MAPBASE(kaddr) + LOCAL_MAP_NR(kaddr)) |
| #define VALID_PAGE(page) (((page) - mem_map) < max_mapnr) |
| |
| #ifdef CONFIG_NUMA |
| #ifdef CONFIG_NUMA_SCHED |
| #define NODE_SCHEDULE_DATA(nid) (&((PLAT_NODE_DATA(nid))->schedule_data)) |
| #endif |
| |
| #define cputonode(cpu) \ |
| (alpha_mv.cpuid_to_nid ? alpha_mv.cpuid_to_nid(cpu) : 0) |
| |
| #define numa_node_id() cputonode(smp_processor_id()) |
| #endif /* CONFIG_NUMA */ |
| |
| #endif /* CONFIG_DISCONTIGMEM */ |
| |
| #endif /* _ASM_MMZONE_H_ */ |