xref: /titanic_50/usr/src/uts/sparc/sys/kdi_machimpl.h (revision 5f6e3a12a25e7dfe9dd70bdca9d6ce51a92ac81b)
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 (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _SYS_KDI_MACHIMPL_H
27 #define	_SYS_KDI_MACHIMPL_H
28 
29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
30 
31 #include <sys/modctl.h>
32 #include <sys/types.h>
33 
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37 
38 /* Return codes from the kdi_xc_one op */
39 #define	KDI_XC_RES_ERR		-1
40 #define	KDI_XC_RES_OK		0
41 #define	KDI_XC_RES_BUSY		1
42 #define	KDI_XC_RES_NACK		2
43 
44 struct regs;
45 
46 typedef struct kdi_mach {
47 	/*
48 	 * Iterates through the CPUs in the ready set, invoking the
49 	 * caller-provided callback with the CPU ID of each one.
50 	 */
51 	int (*mkdi_cpu_ready_iter)(int (*)(int, void *), void *);
52 
53 	/*
54 	 * Send a two-argument cross-call to a specific CPU.
55 	 */
56 	int (*mkdi_xc_one)(int, void (*)(uintptr_t, uintptr_t),
57 	    uintptr_t, uintptr_t);
58 
59 	/*
60 	 * Used by the state-saving code, at TL=1, to determine the current
61 	 * CPU's ID.  This routine may only use registers %g1 and %g2, and
62 	 * must return the result in %g1.  %g7 will contain the return address.
63 	 */
64 	void (*mkdi_cpu_index)(void);
65 
66 	/*
67 	 * Used by the trap handlers to retrieve TTEs for virtual addresses.
68 	 * This routine may use %g1-g6, and must return the result in %g1.  %g7
69 	 * will contain the return address.
70 	 */
71 	void (*mkdi_trap_vatotte)(void);
72 
73 	void (*mkdi_tickwait)(clock_t);
74 	int (*mkdi_get_stick)(uint64_t *);
75 
76 	void (*mkdi_kernpanic)(struct regs *, uint_t);
77 
78 	void (*mkdi_cpu_init)(int, int, int, int);
79 } kdi_mach_t;
80 
81 #define	mkdi_cpu_ready_iter	kdi_mach.mkdi_cpu_ready_iter
82 #define	mkdi_xc_one		kdi_mach.mkdi_xc_one
83 #define	mkdi_cpu_index		kdi_mach.mkdi_cpu_index
84 #define	mkdi_trap_vatotte	kdi_mach.mkdi_trap_vatotte
85 #define	mkdi_tickwait		kdi_mach.mkdi_tickwait
86 #define	mkdi_get_stick		kdi_mach.mkdi_get_stick
87 #define	mkdi_kernpanic		kdi_mach.mkdi_kernpanic
88 #define	mkdi_cpu_init		kdi_mach.mkdi_cpu_init
89 
90 extern void kdi_cpu_index(void);
91 extern void kdi_trap_vatotte(void);
92 
93 extern int kdi_watchdog_disable(void);
94 extern void kdi_watchdog_restore(void);
95 
96 extern void kdi_tlb_page_lock(caddr_t, int);
97 extern void kdi_tlb_page_unlock(caddr_t, int);
98 
99 extern void kmdb_enter(void);
100 
101 #ifdef __cplusplus
102 }
103 #endif
104 
105 #endif /* _SYS_KDI_MACHIMPL_H */
106