patch-2.4.19 linux-2.4.19/include/asm-ia64/sn/sn1/hwcntrs.h

• Lines: 97
• Date: Fri Aug 2 17:39:45 2002
• Orig file: linux-2.4.18/include/asm-ia64/sn/sn1/hwcntrs.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.18/include/asm-ia64/sn/sn1/hwcntrs.h linux-2.4.19/include/asm-ia64/sn/sn1/hwcntrs.h
@@ -0,0 +1,96 @@
+/*
+ *
+ * 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 */