FreeBSD/Linux Kernel Cross Reference
sys/include/asm-alpha/mmzone.h

     /*
      * 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_ */

Cache object: cd2ca8799ee5bfe838aae86b74e4318e