patch-2.4.21 linux-2.4.21/arch/ia64/sn/io/sn2/l1_command.c

• Lines: 196
• Date: 2003-06-13 07:51:30.000000000 -0700
• Orig file: linux-2.4.20/arch/ia64/sn/io/sn2/l1_command.c
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.20/arch/ia64/sn/io/sn2/l1_command.c linux-2.4.21/arch/ia64/sn/io/sn2/l1_command.c
@@ -0,0 +1,195 @@
+/* $Id$
+ *
+ * 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) 1992-1997,2000-2002 Silicon Graphics, Inc. All rights reserved.
+ */ 
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <asm/sn/sgi.h>
+#include <asm/sn/io.h>
+#include <asm/sn/iograph.h>
+#include <asm/sn/invent.h>
+#include <asm/sn/hcl.h>
+#include <asm/sn/hcl_util.h>
+#include <asm/sn/labelcl.h>
+#include <asm/sn/eeprom.h>
+#include <asm/sn/router.h>
+#include <asm/sn/module.h>
+#include <asm/sn/ksys/l1.h>
+#include <asm/sn/nodepda.h>
+#include <asm/sn/clksupport.h>
+#include <asm/sn/sn_cpuid.h>
+#include <asm/sn/sn_sal.h>
+#include <linux/ctype.h>
+
+#define ELSC_TIMEOUT	1000000		/* ELSC response timeout (usec) */
+#define LOCK_TIMEOUT	5000000		/* Hub lock timeout (usec) */
+
+#define hub_cpu_get()	0
+
+#define LBYTE(caddr)	(*(char *) caddr)
+
+extern char *bcopy(const char * src, char * dest, int count);
+
+#define LDEBUG		0
+
+/*
+ * ELSC data is in NVRAM page 7 at the following offsets.
+ */
+
+#define NVRAM_MAGIC_AD	0x700		/* magic number used for init */
+#define NVRAM_PASS_WD	0x701		/* password (4 bytes in length) */
+#define NVRAM_DBG1	0x705		/* virtual XOR debug switches */
+#define NVRAM_DBG2	0x706		/* physical XOR debug switches */
+#define NVRAM_CFG	0x707		/* ELSC Configuration info */
+#define NVRAM_MODULE	0x708		/* system module number */
+#define NVRAM_BIST_FLG	0x709		/* BIST flags (2 bits per nodeboard) */
+#define NVRAM_PARTITION 0x70a		/* module's partition id */
+#define	NVRAM_DOMAIN	0x70b		/* module's domain id */
+#define	NVRAM_CLUSTER	0x70c		/* module's cluster id */
+#define	NVRAM_CELL	0x70d		/* module's cellid */
+
+#define NVRAM_MAGIC_NO	0x37		/* value of magic number */
+#define NVRAM_SIZE	16		/* 16 bytes in nvram */
+
+
+/* elsc_display_line writes up to 12 characters to either the top or bottom
+ * line of the L1 display.  line points to a buffer containing the message
+ * to be displayed.  The zero-based line number is specified by lnum (so
+ * lnum == 0 specifies the top line and lnum == 1 specifies the bottom).
+ * Lines longer than 12 characters, or line numbers not less than
+ * L1_DISPLAY_LINES, cause elsc_display_line to return an error.
+ */
+int elsc_display_line(nasid_t nasid, char *line, int lnum)
+{
+    return 0;
+}
+
+/*
+ * iobrick routines
+ */
+
+/* iobrick_rack_bay_type_get fills in the three int * arguments with the
+ * rack number, bay number and brick type of the L1 being addressed.  Note
+ * that if the L1 operation fails and this function returns an error value, 
+ * garbage may be written to brick_type.
+ */
+
+
+int iobrick_rack_bay_type_get( nasid_t nasid, uint *rack, 
+			       uint *bay, uint *brick_type )
+{
+	int result = 0;
+
+	if ( ia64_sn_sysctl_iobrick_module_get(nasid, &result) )
+		return( ELSC_ERROR_CMD_SEND );
+
+	*rack = (result & L1_ADDR_RACK_MASK) >> L1_ADDR_RACK_SHFT;
+	*bay = (result & L1_ADDR_BAY_MASK) >> L1_ADDR_BAY_SHFT;
+	*brick_type = (result & L1_ADDR_TYPE_MASK) >> L1_ADDR_TYPE_SHFT;
+	*brick_type = toupper(*brick_type);
+
+	return 0;
+}
+
+
+int iobrick_module_get(nasid_t nasid)
+{
+    uint rnum, rack, bay, brick_type, t;
+    int ret;
+
+    /* construct module ID from rack and slot info */
+
+    if ((ret = iobrick_rack_bay_type_get(nasid, &rnum, &bay, &brick_type)) < 0)
+        return ret;
+
+    if (bay > MODULE_BPOS_MASK >> MODULE_BPOS_SHFT)
+        return ELSC_ERROR_MODULE;
+
+    /* Build a moduleid_t-compatible rack number */
+
+    rack = 0;           
+    t = rnum / 100;             /* rack class (CPU/IO) */
+    if (t > RACK_CLASS_MASK(rack) >> RACK_CLASS_SHFT(rack))
+        return ELSC_ERROR_MODULE;
+    RACK_ADD_CLASS(rack, t);
+    rnum %= 100;
+
+    t = rnum / 10;              /* rack group */
+    if (t > RACK_GROUP_MASK(rack) >> RACK_GROUP_SHFT(rack))
+        return ELSC_ERROR_MODULE;
+    RACK_ADD_GROUP(rack, t);
+
+    t = rnum % 10;              /* rack number (one-based) */
+    if (t-1 > RACK_NUM_MASK(rack) >> RACK_NUM_SHFT(rack))
+        return ELSC_ERROR_MODULE;
+    RACK_ADD_NUM(rack, t);
+
+    switch( brick_type ) {
+      case 'I': 
+	brick_type = MODULE_IBRICK; break;
+      case 'P':
+	brick_type = MODULE_PBRICK; break;
+      case 'X':
+	brick_type = MODULE_XBRICK; break;
+    }
+
+    ret = RBT_TO_MODULE(rack, bay, brick_type);
+
+    return ret;
+}
+
+/*
+ * iobrick_module_get_nasid() returns a module_id which has the brick
+ * type encoded in bits 15-12, but this is not the true brick type...
+ * The module_id returned by iobrick_module_get_nasid() is modified
+ * to make a PEBRICKs & PXBRICKs look like a PBRICK.  So this routine
+ * iobrick_type_get_nasid() returns the true unmodified brick type.
+ */
+int
+iobrick_type_get_nasid(nasid_t nasid)
+{
+    uint rack, bay, type;
+    int t, ret;
+    extern char brick_types[];
+
+    if ((ret = iobrick_rack_bay_type_get(nasid, &rack, &bay, &type)) < 0) {
+        return ret;
+    }
+
+    /* convert brick_type to lower case */
+    if ((type >= 'A') && (type <= 'Z'))
+        type = type - 'A' + 'a';
+
+    /* convert to a module.h brick type */
+    for( t = 0; t < MAX_BRICK_TYPES; t++ ) {
+        if( brick_types[t] == type )
+            return t;
+    }
+
+    return -1;    /* unknown brick */
+}
+
+int iobrick_module_get_nasid(nasid_t nasid)
+{
+    int io_moduleid;
+
+#ifdef PIC_LATER
+    uint rack, bay;
+
+    if (PEBRICK_NODE(nasid)) {
+        if (peer_iobrick_rack_bay_get(nasid, &rack, &bay)) {
+            printf("Could not read rack and bay location "
+                   "of PEBrick at nasid %d\n", nasid);
+        }
+
+        io_moduleid = peer_iobrick_module_get(sc, rack, bay);
+    }
+#endif	/* PIC_LATER */
+    io_moduleid = iobrick_module_get(nasid);
+    return io_moduleid;
+}