1 files changed, 226 insertions, 0 deletions

diff --git a/include/asm-ia64/sn/sn2/sn_hwperf.h b/include/asm-ia64/sn/sn2/sn_hwperf.h
new file mode 100644
index 000000000000..b0c4d6dd77ba
--- /dev/null
+++ b/include/asm-ia64/sn/sn2/sn_hwperf.h
@@ -0,0 +1,226 @@
+/*
+ * 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) 2004 Silicon Graphics, Inc. All rights reserved.
+ *
+ * Data types used by the SN_SAL_HWPERF_OP SAL call for monitoring
+ * SGI Altix node and router hardware
+ *
+ * Mark Goodwin <markgw@sgi.com> Mon Aug 30 12:23:46 EST 2004
+ */
+
+#ifndef SN_HWPERF_H
+#define SN_HWPERF_H
+
+/*
+ * object structure. SN_HWPERF_ENUM_OBJECTS and SN_HWPERF_GET_CPU_INFO
+ * return an array of these. Do not change this without also
+ * changing the corresponding SAL code.
+ */
+#define SN_HWPERF_MAXSTRING             128
+struct sn_hwperf_object_info {
+        u32 id;
+        union {
+                struct {
+                        u64 this_part:1;
+                        u64 is_shared:1;
+                } fields;
+                struct {
+                        u64 flags;
+                        u64 reserved;
+                } b;
+        } f;
+        char name[SN_HWPERF_MAXSTRING];
+        char location[SN_HWPERF_MAXSTRING];
+        u32 ports;
+};
+
+#define sn_hwp_this_part        f.fields.this_part
+#define sn_hwp_is_shared        f.fields.is_shared
+#define sn_hwp_flags            f.b.flags
+
+/* macros for object classification */
+#define SN_HWPERF_IS_NODE(x)            ((x) && strstr((x)->name, "SHub"))
+#define SN_HWPERF_IS_IONODE(x)          ((x) && strstr((x)->name, "TIO"))
+#define SN_HWPERF_IS_ROUTER(x)          ((x) && strstr((x)->name, "Router"))
+#define SN_HWPERF_IS_NL3ROUTER(x)       ((x) && strstr((x)->name, "NL3Router"))
+#define SN_HWPERF_FOREIGN(x)            ((x) && !(x)->sn_hwp_this_part && !(x)->sn_hwp_is_shared)
+#define SN_HWPERF_SAME_OBJTYPE(x,y)     ((SN_HWPERF_IS_NODE(x) && SN_HWPERF_IS_NODE(y)) ||\
+                                        (SN_HWPERF_IS_IONODE(x) && SN_HWPERF_IS_IONODE(y)) ||\
+                                        (SN_HWPERF_IS_ROUTER(x) && SN_HWPERF_IS_ROUTER(y)))
+
+/* numa port structure, SN_HWPERF_ENUM_PORTS returns an array of these */
+struct sn_hwperf_port_info {
+        u32 port;
+        u32 conn_id;
+        u32 conn_port;
+};
+
+/* for HWPERF_{GET,SET}_MMRS */
+struct sn_hwperf_data {
+        u64 addr;
+        u64 data;
+};
+
+/* user ioctl() argument, see below */
+struct sn_hwperf_ioctl_args {
+        u64 arg;                /* argument, usually an object id */
+        u64 sz;                 /* size of transfer */
+        void *ptr;              /* pointer to source/target */
+        u32 v0;                 /* second return value */
+};
+
+/*
+ * For SN_HWPERF_{GET,SET}_MMRS and SN_HWPERF_OBJECT_DISTANCE,
+ * sn_hwperf_ioctl_args.arg can be used to specify a CPU on which
+ * to call SAL, and whether to use an interprocessor interrupt
+ * or task migration in order to do so. If the CPU specified is
+ * SN_HWPERF_ARG_ANY_CPU, then the current CPU will be used.
+ */
+#define SN_HWPERF_ARG_ANY_CPU           0x7fffffffUL
+#define SN_HWPERF_ARG_CPU_MASK          0x7fffffff00000000ULL
+#define SN_HWPERF_ARG_USE_IPI_MASK      0x8000000000000000ULL
+#define SN_HWPERF_ARG_OBJID_MASK        0x00000000ffffffffULL
+
+/* 
+ * ioctl requests on the "sn_hwperf" misc device that call SAL.
+ */
+#define SN_HWPERF_OP_MEM_COPYIN         0x1000
+#define SN_HWPERF_OP_MEM_COPYOUT        0x2000
+#define SN_HWPERF_OP_MASK               0x0fff
+
+/*
+ * Determine mem requirement.
+ * arg  don't care
+ * sz   8
+ * p    pointer to u64 integer
+ */
+#define SN_HWPERF_GET_HEAPSIZE          1
+
+/*
+ * Install mem for SAL drvr
+ * arg  don't care
+ * sz   sizeof buffer pointed to by p
+ * p    pointer to buffer for scratch area
+ */
+#define SN_HWPERF_INSTALL_HEAP          2
+
+/*
+ * Determine number of objects
+ * arg  don't care
+ * sz   8
+ * p    pointer to u64 integer
+ */
+#define SN_HWPERF_OBJECT_COUNT          (10|SN_HWPERF_OP_MEM_COPYOUT)
+
+/*
+ * Determine object "distance", relative to a cpu. This operation can
+ * execute on a designated logical cpu number, using either an IPI or
+ * via task migration. If the cpu number is SN_HWPERF_ANY_CPU, then
+ * the current CPU is used. See the SN_HWPERF_ARG_* macros above.
+ *
+ * arg  bitmap of IPI flag, cpu number and object id
+ * sz   8
+ * p    pointer to u64 integer
+ */
+#define SN_HWPERF_OBJECT_DISTANCE       (11|SN_HWPERF_OP_MEM_COPYOUT)
+
+/*
+ * Enumerate objects. Special case if sz == 8, returns the required
+ * buffer size.
+ * arg  don't care
+ * sz   sizeof buffer pointed to by p
+ * p    pointer to array of struct sn_hwperf_object_info
+ */
+#define SN_HWPERF_ENUM_OBJECTS          (12|SN_HWPERF_OP_MEM_COPYOUT)
+
+/*
+ * Enumerate NumaLink ports for an object. Special case if sz == 8,
+ * returns the required buffer size.
+ * arg  object id
+ * sz   sizeof buffer pointed to by p
+ * p    pointer to array of struct sn_hwperf_port_info
+ */
+#define SN_HWPERF_ENUM_PORTS            (13|SN_HWPERF_OP_MEM_COPYOUT)
+
+/*
+ * SET/GET memory mapped registers. These operations can execute
+ * on a designated logical cpu number, using either an IPI or via
+ * task migration. If the cpu number is SN_HWPERF_ANY_CPU, then
+ * the current CPU is used. See the SN_HWPERF_ARG_* macros above.
+ *
+ * arg  bitmap of ipi flag, cpu number and object id
+ * sz   sizeof buffer pointed to by p
+ * p    pointer to array of struct sn_hwperf_data
+ */
+#define SN_HWPERF_SET_MMRS              (14|SN_HWPERF_OP_MEM_COPYIN)
+#define SN_HWPERF_GET_MMRS              (15|SN_HWPERF_OP_MEM_COPYOUT| \
+                                            SN_HWPERF_OP_MEM_COPYIN)
+/*
+ * Lock a shared object
+ * arg  object id
+ * sz   don't care
+ * p    don't care
+ */
+#define SN_HWPERF_ACQUIRE               16
+
+/*
+ * Unlock a shared object
+ * arg  object id
+ * sz   don't care
+ * p    don't care
+ */
+#define SN_HWPERF_RELEASE               17
+
+/*
+ * Break a lock on a shared object
+ * arg  object id
+ * sz   don't care
+ * p    don't care
+ */
+#define SN_HWPERF_FORCE_RELEASE         18
+
+/*
+ * ioctl requests on "sn_hwperf" that do not call SAL
+ */
+
+/*
+ * get cpu info as an array of hwperf_object_info_t. 
+ * id is logical CPU number, name is description, location
+ * is geoid (e.g. 001c04#1c). Special case if sz == 8,
+ * returns the required buffer size.
+ *
+ * arg  don't care
+ * sz   sizeof buffer pointed to by p
+ * p    pointer to array of struct sn_hwperf_object_info
+ */
+#define SN_HWPERF_GET_CPU_INFO          (100|SN_HWPERF_OP_MEM_COPYOUT)
+
+/*
+ * Given an object id, return it's node number (aka cnode).
+ * arg  object id
+ * sz   8
+ * p    pointer to u64 integer
+ */
+#define SN_HWPERF_GET_OBJ_NODE          (101|SN_HWPERF_OP_MEM_COPYOUT)
+
+/*
+ * Given a node number (cnode), return it's nasid.
+ * arg  ordinal node number (aka cnodeid)
+ * sz   8
+ * p    pointer to u64 integer
+ */
+#define SN_HWPERF_GET_NODE_NASID        (102|SN_HWPERF_OP_MEM_COPYOUT)
+
+/* return codes */
+#define SN_HWPERF_OP_OK                 0
+#define SN_HWPERF_OP_NOMEM              1
+#define SN_HWPERF_OP_NO_PERM            2
+#define SN_HWPERF_OP_IO_ERROR           3
+#define SN_HWPERF_OP_BUSY               4
+#define SN_HWPERF_OP_RECONFIGURE        253
+#define SN_HWPERF_OP_INVAL              254
+
+#endif                          /* SN_HWPERF_H */