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#ifndef _ASM_X8664_NUMA_H
#define _ASM_X8664_NUMA_H 1
#include <xen/cpumask.h>
#define NODES_SHIFT 6
extern int srat_rev;
extern unsigned char cpu_to_node[];
extern cpumask_t node_to_cpumask[];
#define cpu_to_node(cpu) (cpu_to_node[cpu])
#define parent_node(node) (node)
#define node_to_first_cpu(node) (__ffs(node_to_cpumask[node]))
#define node_to_cpumask(node) (node_to_cpumask[node])
struct node {
u64 start,end;
};
extern int compute_hash_shift(struct node *nodes, int numnodes,
int *nodeids);
extern int pxm_to_node(int nid);
#define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT))
#define VIRTUAL_BUG_ON(x)
extern void numa_add_cpu(int cpu);
extern void numa_init_array(void);
extern int numa_off;
extern int srat_disabled(void);
extern void numa_set_node(int cpu, int node);
extern int setup_node(int pxm);
extern void srat_detect_node(int cpu);
extern void setup_node_bootmem(int nodeid, u64 start, u64 end);
extern unsigned char apicid_to_node[];
#ifdef CONFIG_NUMA
extern void init_cpu_to_node(void);
static inline void clear_node_cpumask(int cpu)
{
cpumask_clear_cpu(cpu, &node_to_cpumask[cpu_to_node(cpu)]);
}
/* Simple perfect hash to map pdx to node numbers */
extern int memnode_shift;
extern unsigned long memnodemapsize;
extern u8 *memnodemap;
struct node_data {
unsigned long node_start_pfn;
unsigned long node_spanned_pages;
unsigned int node_id;
};
extern struct node_data node_data[];
static inline __attribute__((pure)) int phys_to_nid(paddr_t addr)
{
unsigned nid;
VIRTUAL_BUG_ON((paddr_to_pdx(addr) >> memnode_shift) >= memnodemapsize);
nid = memnodemap[paddr_to_pdx(addr) >> memnode_shift];
VIRTUAL_BUG_ON(nid >= MAX_NUMNODES || !node_data[nid]);
return nid;
}
#define NODE_DATA(nid) (&(node_data[nid]))
#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn)
#define node_spanned_pages(nid) (NODE_DATA(nid)->node_spanned_pages)
#define node_end_pfn(nid) (NODE_DATA(nid)->node_start_pfn + \
NODE_DATA(nid)->node_spanned_pages)
extern int valid_numa_range(u64 start, u64 end, int node);
#else
#define init_cpu_to_node() do {} while (0)
#define clear_node_cpumask(cpu) do {} while (0)
#define valid_numa_range(start, end, node) 1
#endif
void srat_parse_regions(u64 addr);
extern int __node_distance(int a, int b);
#endif
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