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/*
*
* 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.
*
* Copyright (C) 1992 - 1997, 2000-2001 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_SN1_HWCNTRS_H
#define _ASM_IA64_SN_SN1_HWCNTRS_H
typedef uint64_t refcnt_t;
#define SN0_REFCNT_MAX_COUNTERS 64
typedef struct sn0_refcnt_set {
refcnt_t refcnt[SN0_REFCNT_MAX_COUNTERS];
uint64_t flags;
uint64_t reserved[4];
} sn0_refcnt_set_t;
typedef struct sn0_refcnt_buf {
sn0_refcnt_set_t refcnt_set;
uint64_t paddr;
uint64_t page_size;
cnodeid_t cnodeid; /* cnodeid + pad[3] use 64 bits */
uint16_t pad[3];
uint64_t reserved[4];
} sn0_refcnt_buf_t;
typedef struct sn0_refcnt_args {
uint64_t vaddr;
uint64_t len;
sn0_refcnt_buf_t* buf;
uint64_t reserved[4];
} sn0_refcnt_args_t;
/*
* Info needed by the user level program
* to mmap the refcnt buffer
*/
#define RCB_INFO_GET 1
#define RCB_SLOT_GET 2
typedef struct rcb_info {
uint64_t rcb_len; /* total refcnt buffer len in bytes */
int rcb_sw_sets; /* number of sw counter sets in buffer */
int rcb_sw_counters_per_set; /* sw counters per set -- num_compact_nodes */
int rcb_sw_counter_size; /* sizeof(refcnt_t) -- size of sw cntr */
int rcb_base_pages; /* number of base pages in node */
int rcb_base_page_size; /* sw base page size */
uint64_t rcb_base_paddr; /* base physical address for this node */
int rcb_cnodeid; /* cnodeid for this node */
int rcb_granularity; /* hw page size used for counter sets */
uint rcb_hw_counter_max; /* max hwcounter count (width mask) */
int rcb_diff_threshold; /* current node differential threshold */
int rcb_abs_threshold; /* current node absolute threshold */
int rcb_num_slots; /* physmem slots */
int rcb_reserved[512];
} rcb_info_t;
typedef struct rcb_slot {
uint64_t base;
uint64_t size;
} rcb_slot_t;
#if defined(__KERNEL__)
typedef struct sn0_refcnt_args_32 {
uint64_t vaddr;
uint64_t len;
app32_ptr_t buf;
uint64_t reserved[4];
} sn0_refcnt_args_32_t;
/* Defines and Macros */
/* A set of reference counts are for 4k bytes of physical memory */
#define NBPREFCNTP 0x1000
#define BPREFCNTPSHIFT 12
#define bytes_to_refcntpages(x) (((__psunsigned_t)(x)+(NBPREFCNTP-1))>>BPREFCNTPSHIFT)
#define refcntpage_offset(x) ((__psunsigned_t)(x)&((NBPP-1)&~(NBPREFCNTP-1)))
#define align_to_refcntpage(x) ((__psunsigned_t)(x)&(~(NBPREFCNTP-1)))
extern void migr_refcnt_read(sn0_refcnt_buf_t*);
extern void migr_refcnt_read_extended(sn0_refcnt_buf_t*);
extern int migr_refcnt_enabled(void);
#endif /* __KERNEL__ */
#endif /* _ASM_IA64_SN_SN1_HWCNTRS_H */
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