xref: /titanic_50/usr/src/uts/sun4u/starcat/sys/post/scat_pa_space.h (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 1999-2000 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #ifndef	_SCAT_PA_SPACE_H
28 #define	_SCAT_PA_SPACE_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 /*
33  * This file contains definitions related to the Starcat
34  * physical address space.
35  */
36 
37 /*
38  * POST DEVELOPERS:
39  * This file is copied to the OS workspace, and thus must abide by the OS
40  * coding standards.  This file must always pass cstyle and hdrchk.
41  */
42 
43 #ifdef __cplusplus
44 extern "C" {
45 #endif
46 
47 #define	STARCAT_DEVICE_CONFIG	(0x40000000000ull)
48 
49 #define	EXP_PA_ADDR(exp)	(exp << 28)
50 
51 	/*
52 	 * Useful to translate an sram or fprom offset to an address
53 	 * that a host processor would use to reach it.
54 	 */
55 #define	BOOTBUS_PA_BASE		0x7FFF0000000ull
56 
57 	/* See bbc.h for sizes */
58 #define	BOOTBUS_FPROM_PA_BASE	(BOOTBUS_PA_BASE + 0)
59 #define	BOOTBUS_SRAM_PA_BASE	(BOOTBUS_PA_BASE + 0x900000u)
60 
61 	/*
62 	 * Cacheable Physical Memory Addresses in Starcat are assigned
63 	 * to expanders in 128 GByte slices, based on PA[41:37].
64 	 * The slice to exp mapping is not always 1-1, swaps may occur
65 	 * as a result of some DR or POST operations.
66 	 * The map is maintained in the PCD.
67 	 * The slice number will always be a valid expander board
68 	 * number in [0,17], but it may not reside on that expander.
69 	 * The PA in these macros is 64-bit, the slice is 8 bit, unsigned.
70 	 */
71 #define	PA_2_SLICE128G(pa)		(((uint8_t)((pa) >> 37)) & 0x1Fu)
72 #define	SLICE128G_2_PA_BASE(slice)	(((uint64_t)((slice) & 0x1F)) << 37)
73 
74 
75 #ifdef __cplusplus
76 }
77 #endif
78 
79 #endif	/* !_SCAT_PA_SPACE_H */
80