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      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