1 /* $Id$
2 *
3 * This file is subject to the terms and conditions of the GNU General Public
4 * License. See the file "COPYING" in the main directory of this archive
5 * for more details.
6 *
7 * Copyright (C) 1992 - 1997, 2000-2003 Silicon Graphics, Inc. All rights reserved.
8 */
9
10 #include <linux/config.h>
11 #include <linux/types.h>
12 #include <asm/sn/sgi.h>
13 #include <asm/io.h>
14 #include <asm/sn/invent.h>
15 #include <asm/sn/hcl.h>
16 #include <asm/sn/pci/bridge.h>
17 #include "asm/sn/ioerror_handling.h"
18 #include <asm/sn/xtalk/xbow.h>
19
20 /* these get called directly in cdl_add_connpt in fops bypass hack */
21 extern int pcibr_attach(vertex_hdl_t);
22 extern int xbow_attach(vertex_hdl_t);
23 extern int pic_attach(vertex_hdl_t);
24
25
26 /*
27 * cdl: Connection and Driver List
28 *
29 * We are not porting this to Linux. Devices are registered via
30 * the normal Linux PCI layer. This is a very simplified version
31 * of cdl that will allow us to register and call our very own
32 * IO Infrastructure Drivers e.g. pcibr.
33 */
34
35 #define MAX_SGI_IO_INFRA_DRVR 7
36
37 static struct cdl sgi_infrastructure_drivers[MAX_SGI_IO_INFRA_DRVR] =
38 {
39 { XBRIDGE_WIDGET_PART_NUM, XBRIDGE_WIDGET_MFGR_NUM, pcibr_attach /* &pcibr_fops */},
40 { BRIDGE_WIDGET_PART_NUM, BRIDGE_WIDGET_MFGR_NUM, pcibr_attach /* &pcibr_fops */},
41 { PIC_WIDGET_PART_NUM_BUS0, PIC_WIDGET_MFGR_NUM, pic_attach /* &pic_fops */},
42 { PIC_WIDGET_PART_NUM_BUS1, PIC_WIDGET_MFGR_NUM, pic_attach /* &pic_fops */},
43 { XXBOW_WIDGET_PART_NUM, XXBOW_WIDGET_MFGR_NUM, xbow_attach /* &xbow_fops */},
44 { XBOW_WIDGET_PART_NUM, XBOW_WIDGET_MFGR_NUM, xbow_attach /* &xbow_fops */},
45 { PXBOW_WIDGET_PART_NUM, XXBOW_WIDGET_MFGR_NUM, xbow_attach /* &xbow_fops */},
46 };
47
48 /*
49 * cdl_add_connpt: We found a device and it's connect point. Call the
50 * attach routine of that driver.
51 *
52 * May need support for pciba registration here ...
53 *
54 * This routine use to create /hw/.id/pci/.../.. that links to
55 * /hw/module/006c06/Pbrick/xtalk/15/pci/<slotnum> .. do we still need
56 * it? The specified driver attach routine does not reference these
57 * vertices.
58 */
59 int
cdl_add_connpt(int part_num,int mfg_num,vertex_hdl_t connpt,int drv_flags)60 cdl_add_connpt(int part_num, int mfg_num,
61 vertex_hdl_t connpt, int drv_flags)
62 {
63 int i;
64
65 /*
66 * Find the driver entry point and call the attach routine.
67 */
68 for (i = 0; i < MAX_SGI_IO_INFRA_DRVR; i++) {
69 if ( (part_num == sgi_infrastructure_drivers[i].part_num) &&
70 ( mfg_num == sgi_infrastructure_drivers[i].mfg_num) ) {
71 /*
72 * Call the device attach routines.
73 */
74 if (sgi_infrastructure_drivers[i].attach) {
75 return(sgi_infrastructure_drivers[i].attach(connpt));
76 }
77 } else {
78 continue;
79 }
80 }
81
82 /* printk("WARNING: cdl_add_connpt: Driver not found for part_num 0x%x mfg_num 0x%x\n", part_num, mfg_num); */
83
84 return (0);
85 }
86