/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _SYS_KDI_MACHIMPL_H
#define _SYS_KDI_MACHIMPL_H

#pragma ident   "%Z%%M% %I%     %E% SMI"

#include <sys/modctl.h>
#include <sys/types.h>

#ifdef __cplusplus
extern "C" {
#endif

/* Return codes from the kdi_xc_one op */
#define KDI_XC_RES_ERR          -1
#define KDI_XC_RES_OK           0
#define KDI_XC_RES_BUSY         1
#define KDI_XC_RES_NACK         2

struct regs;

typedef struct kdi_mach {
        /*
         * Iterates through the CPUs in the ready set, invoking the
         * caller-provided callback with the CPU ID of each one.
         */
        int (*mkdi_cpu_ready_iter)(int (*)(int, void *), void *);

        /*
         * Send a two-argument cross-call to a specific CPU.
         */
        int (*mkdi_xc_one)(int, void (*)(uintptr_t, uintptr_t),
            uintptr_t, uintptr_t);

        /*
         * Used by the state-saving code, at TL=1, to determine the current
         * CPU's ID.  This routine may only use registers %g1 and %g2, and
         * must return the result in %g1.  %g7 will contain the return address.
         */
        void (*mkdi_cpu_index)(void);

        /*
         * Used by the trap handlers to retrieve TTEs for virtual addresses.
         * This routine may use %g1-g6, and must return the result in %g1.  %g7
         * will contain the return address.
         */
        void (*mkdi_trap_vatotte)(void);

        void (*mkdi_tickwait)(clock_t);
        int (*mkdi_get_stick)(uint64_t *);

        void (*mkdi_kernpanic)(struct regs *, uint_t);

        void (*mkdi_cpu_init)(int, int, int, int);
} kdi_mach_t;

#define mkdi_cpu_ready_iter     kdi_mach.mkdi_cpu_ready_iter
#define mkdi_xc_one             kdi_mach.mkdi_xc_one
#define mkdi_cpu_index          kdi_mach.mkdi_cpu_index
#define mkdi_trap_vatotte       kdi_mach.mkdi_trap_vatotte
#define mkdi_tickwait           kdi_mach.mkdi_tickwait
#define mkdi_get_stick          kdi_mach.mkdi_get_stick
#define mkdi_kernpanic          kdi_mach.mkdi_kernpanic
#define mkdi_cpu_init           kdi_mach.mkdi_cpu_init

extern void kdi_cpu_index(void);
extern void kdi_trap_vatotte(void);

extern int kdi_watchdog_disable(void);
extern void kdi_watchdog_restore(void);

extern void kdi_tlb_page_lock(caddr_t, int);
extern void kdi_tlb_page_unlock(caddr_t, int);

extern void kmdb_enter(void);

#ifdef __cplusplus
}
#endif

#endif /* _SYS_KDI_MACHIMPL_H */