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/*
* 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 (c) 2010, Oracle and/or its affiliates. All rights reserved.
*/
#include "intr_common.h"
#ifdef _KMDB
/* Macros for reading/writing the IOAPIC RDT entries */
#define APIC_READ_IOAPIC_RDT_ENTRY_LOW_DWORD(ioapic_ix, ipin) \
apic_ioapic_read(ioapic_ix, APIC_RDT_CMD + (2 * (ipin)))
#define APIC_READ_IOAPIC_RDT_ENTRY_HIGH_DWORD(ioapic_ix, ipin) \
apic_ioapic_read(ioapic_ix, APIC_RDT_CMD2 + (2 * (ipin)))
static uint32_t *ioapic_adr[MAX_IO_APIC];
static uint32_t
apic_ioapic_read(int ioapic_ix, uint32_t reg)
{
volatile uint32_t *ioapic;
ioapic = ioapic_adr[ioapic_ix];
ioapic[APIC_IO_REG] = reg;
return (ioapic[APIC_IO_DATA]);
}
/*
* ioapic dcmd - Print out the ioapic registers, nicely formatted.
*/
/*ARGSUSED*/
int
ioapic(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
{
uint32_t apic_io_max;
int reg;
int reg_max;
int i;
if ((flags & DCMD_ADDRSPEC) || argc != 0)
return (DCMD_USAGE);
if (mdb_readvar(&ioapic_adr, "apicioadr") == -1) {
/*
* If the mdb_warn string does not end in a \n, mdb will
* automatically append the reason for the failure.
*/
mdb_warn("failed to read ioapicadr");
return (DCMD_ERR);
}
if (mdb_readvar(&apic_io_max, "apic_io_max") == -1) {
/*
* If the mdb_warn string does not end in a \n, mdb will
* automatically append the reason for the failure.
*/
mdb_warn("failed to read apic_io_max");
return (DCMD_ERR);
}
mdb_printf("ioapicadr\t%p\n", ioapic_adr);
for (i = 0; i < apic_io_max; i++) {
/* Bits 23-16 define the maximum redirection entries */
reg_max = apic_ioapic_read(i, APIC_VERS_CMD);
reg_max = (reg_max >> 16) & 0xff;
mdb_printf("%4s %8s %8s\n", "reg", "high", " low");
for (reg = 0; reg <= reg_max; reg++) {
uint32_t high, low;
high = APIC_READ_IOAPIC_RDT_ENTRY_HIGH_DWORD(i, reg);
low = APIC_READ_IOAPIC_RDT_ENTRY_LOW_DWORD(i, reg);
mdb_printf("%2d %8x %8x\n", reg, high, low);
}
mdb_printf("\n");
}
return (DCMD_OK);
}
/*
* apic dcmd - Print out the apic registers, nicely formatted.
*/
/*ARGSUSED*/
int
apic(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
{
uint32_t *papic;
if ((flags & DCMD_ADDRSPEC) || argc != 0)
return (DCMD_USAGE);
if (mdb_readvar(&papic, "apicadr") == -1) {
/*
* If the mdb_warn string does not end in a \n, mdb will
* automatically append the reason for the failure.
*/
mdb_warn("failed to read apicadr");
return (DCMD_ERR);
}
mdb_printf("apicadr\t%p\n", papic);
mdb_printf("as_task_reg\t%x\n", papic[APIC_TASK_REG]);
mdb_printf("as_dest_reg\t%x\n", papic[APIC_DEST_REG]);
mdb_printf("as_format_reg\t%x\n", papic[APIC_FORMAT_REG]);
mdb_printf("as_local_timer\t%x\n", papic[APIC_LOCAL_TIMER]);
mdb_printf("as_pcint_vect\t%x\n", papic[APIC_PCINT_VECT]);
mdb_printf("as_int_vect0\t%x\n", papic[APIC_INT_VECT0]);
mdb_printf("as_int_vect1\t%x\n", papic[APIC_INT_VECT1]);
mdb_printf("as_err_vect\t%x\n", papic[APIC_ERR_VECT]);
mdb_printf("as_init_count\t%x\n", papic[APIC_INIT_COUNT]);
mdb_printf("as_divide_reg\t%x\n", papic[APIC_DIVIDE_REG]);
mdb_printf("as_spur_int_reg\t%x\n", papic[APIC_SPUR_INT_REG]);
return (DCMD_OK);
}
#endif /* _KMDB */
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