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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 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "intr_common.h"
/*
* Globals
*/
static struct av_head avec_tbl[APIC_MAX_VECTOR+1];
static apic_irq_t *irq_tbl[APIC_MAX_VECTOR+1], airq;
static char level_tbl[APIC_MAX_VECTOR+1];
/*
* interrupt_dump:
*
* Dump interrupt information.
*/
/* ARGSUSED */
int
interrupt_dump(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
{
int i;
option_flags = 0;
if (mdb_getopts(argc, argv,
'd', MDB_OPT_SETBITS, INTR_DISPLAY_DRVR_INST, &option_flags,
'i', MDB_OPT_SETBITS, INTR_DISPLAY_INTRSTAT, &option_flags,
NULL) != argc)
return (DCMD_USAGE);
if (mdb_readvar(&irq_tbl, "apic_irq_table") == -1) {
mdb_warn("failed to read apic_irq_table");
return (DCMD_ERR);
}
if (mdb_readvar(&level_tbl, "apic_level_intr") == -1) {
mdb_warn("failed to read apic_level_intr");
return (DCMD_ERR);
}
if (mdb_readvar(&avec_tbl, "autovect") == -1) {
mdb_warn("failed to read autovect");
return (DCMD_ERR);
}
/* Print the header first */
if (option_flags & INTR_DISPLAY_INTRSTAT)
mdb_printf("%<u>CPU ");
else
mdb_printf(
"%<u>IRQ Vect IPL Bus Trg Type CPU Share APIC/INT# ");
mdb_printf("%s %</u>\n", option_flags & INTR_DISPLAY_DRVR_INST ?
"Driver Name(s)" : "ISR(s)");
/* Walk all the entries */
for (i = 0; i < APIC_MAX_VECTOR + 1; i++) {
/* Read the entry */
if (mdb_vread(&airq, sizeof (apic_irq_t),
(uintptr_t)irq_tbl[i]) == -1)
continue;
apic_interrupt_dump(&airq, &avec_tbl[i], i, NULL, level_tbl[i]);
}
return (DCMD_OK);
}
/* Macros for reading/writing the IOAPIC RDT entries */
#define READ_IOAPIC_RDT_ENTRY_LOW_DWORD(ioapic_ix, ipin) \
ioapic_read(ioapic_ix, APIC_RDT_CMD + (2 * (ipin)))
#define READ_IOAPIC_RDT_ENTRY_HIGH_DWORD(ioapic_ix, ipin) \
ioapic_read(ioapic_ix, APIC_RDT_CMD2 + (2 * (ipin)))
static uint32_t *ioapic_adr[MAX_IO_APIC];
uint32_t
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*/
static 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 = 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 = READ_IOAPIC_RDT_ENTRY_HIGH_DWORD(i, reg);
low = 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*/
static 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);
}
/*
* MDB module linkage information:
*
* We declare a list of structures describing our dcmds, and a function
* named _mdb_init to return a pointer to our module information.
*/
static const mdb_dcmd_t dcmds[] = {
{ "interrupts", "?[-di]", "print interrupts", interrupt_dump,
interrupt_help},
{ "softint", "?[-d]", "print soft interrupts", soft_interrupt_dump,
soft_interrupt_help},
{ "apic", NULL, "print apic register contents", apic },
{ "ioapic", NULL, "print ioapic register contents", ioapic },
{ NULL }
};
static const mdb_modinfo_t modinfo = { MDB_API_VERSION, dcmds, NULL };
const mdb_modinfo_t *
_mdb_init(void)
{
GElf_Sym sym;
if (mdb_lookup_by_name("gld_intr", &sym) != -1)
if (GELF_ST_TYPE(sym.st_info) == STT_FUNC)
gld_intr_addr = (uintptr_t)sym.st_value;
return (&modinfo);
}
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