xref: /titanic_50/usr/src/uts/sun4v/sys/machasi.h (revision 84f7a9b9dca4f23b5f50edef0e59d7eb44301114)
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 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _SYS_MACHASI_H
28 #define	_SYS_MACHASI_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 /*
33  * alternate address space identifiers
34  *
35  * 0x00 - 0x2F are privileged
36  * 0x30 - 0x7f are hyperprivileged
37  * 0x80 - 0xFF can be used by users
38  */
39 
40 /*
41  * ASIs specific to sun4v compliant  processors.
42  */
43 
44 #ifdef __cplusplus
45 extern "C" {
46 #endif
47 
48 #define	ASI_BLK_AIUP		0x16	/* block as if user primary */
49 #define	ASI_BLK_AIUS		0x17	/* block as if user secondary */
50 #define	ASI_BLK_AIUPL		0x1E	/* block as if user primary little */
51 #define	ASI_BLK_AIUSL		0x1F	/* block as if user secondary little */
52 
53 #define	ASI_NQUAD_LD		0x24	/* 128-bit atomic load */
54 #define	ASI_NQUAD_LD_L		0x2C	/* 128-bit atomic load little */
55 #define	ASI_QUAD_LDD_PHYS	0x26	/* 128-bit physical atomic load */
56 #define	ASI_QUAD_LDD_PHYS_L	0x2E	/* 128-bit phys. atomic load little */
57 
58 #define	ASI_SCRATCHPAD		0x20	/* sun4v scratch pad registers ASI */
59 #define	ASI_MMU			0x21	/* sun4v ctx register ASI */
60 #define	ASI_MMU_CTX		ASI_MMU
61 
62 #define	ASI_QUEUE		0x25
63 
64 /*
65  * MMU fault status area (see sys/hypervisor_api.h for layout)
66  */
67 #define	MMU_FAULT_STATUS_AREA(REG)	\
68 	ldxa	[%g0]ASI_SCRATCHPAD, REG
69 
70 /*
71  * Scratch pad registers
72  * (0x0 through 0x18 guaranteed fast, rest may be slow)
73  */
74 #define	SCRATCHPAD_MMUMISSAREA	0x0	/* Shared with OBP - set by OBP */
75 #define	SCRATCHPAD_CPUID	0x8	/* Shared with OBP - set by HV */
76 #define	SCRATCHPAD_UTSBREG1	0x10
77 #define	SCRATCHPAD_UTSBREG2	0x18
78 					/* 0x20 & 0x28 HV only */
79 #define	SCRATCHPAD_UNUSED1	0x30
80 #define	SCRATCHPAD_UNUSED2	0x38	/* reserved for OBP */
81 
82 /*
83  * Ancillary state registers, for asrset_t
84  */
85 #define	ASR_GSR	(3)
86 
87 #ifdef __cplusplus
88 }
89 #endif
90 
91 #endif /* _SYS_MACHASI_H */
92