/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <mdb/mdb_param.h>
#include <mdb/mdb_modapi.h>
#include <mdb/mdb_ks.h>
#include "lgrp.h"
#include "cpupart_mdb.h"
#include <sys/cpuvar.h>
#include <sys/cpupart.h>
/* ARGSUSED */
static int
cpupart_cpulist_callback(uintptr_t addr, const void *arg, void *cb_data)
{
cpu_t *cpu = (cpu_t *)arg;
ulong_t *cpuset = cb_data;
BT_SET(cpuset, cpu->cpu_id);
return (WALK_NEXT);
}
#define CPUPART_IDWIDTH 3
#ifdef _LP64
#define CPUPART_CPUWIDTH 21
#if defined(__amd64)
#define CPUPART_TWIDTH 16
#else
#define CPUPART_TWIDTH 11
#endif
#else
#define CPUPART_CPUWIDTH 13
#define CPUPART_TWIDTH 8
#endif
#define CPUPART_THRDELT (CPUPART_IDWIDTH + CPUPART_CPUWIDTH)
#define CPUPART_INDENT mdb_printf("%*s", CPUPART_THRDELT, "")
int
cpupart_disp_threads(disp_t *disp)
{
dispq_t *dq;
int i, npri = disp->disp_npri;
proc_t p;
kthread_t t;
dq = mdb_alloc(sizeof (dispq_t) * npri, UM_SLEEP | UM_GC);
if (mdb_vread(dq, sizeof (dispq_t) * npri,
(uintptr_t)disp->disp_q) == -1) {
mdb_warn("failed to read dispq_t at %p", disp->disp_q);
return (DCMD_ERR);
}
CPUPART_INDENT;
mdb_printf("|\n");
CPUPART_INDENT;
mdb_printf("+--> %3s %-*s %s\n", "PRI", CPUPART_TWIDTH, "THREAD",
"PROC");
for (i = npri - 1; i >= 0; i--) {
uintptr_t taddr = (uintptr_t)dq[i].dq_first;
while (taddr != NULL) {
if (mdb_vread(&t, sizeof (t), taddr) == -1) {
mdb_warn("failed to read kthread_t at %p",
taddr);
return (DCMD_ERR);
}
if (mdb_vread(&p, sizeof (p),
(uintptr_t)t.t_procp) == -1) {
mdb_warn("failed to read proc_t at %p",
t.t_procp);
return (DCMD_ERR);
}
CPUPART_INDENT;
mdb_printf("%9d %0*p %s\n", t.t_pri, CPUPART_TWIDTH,
taddr, p.p_user.u_comm);
taddr = (uintptr_t)t.t_link;
}
}
return (DCMD_OK);
}
/* ARGSUSED */
int
cpupart(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
{
cpupart_t cpupart;
int cpusetsize;
int _ncpu;
ulong_t *cpuset;
uint_t verbose = FALSE;
if (mdb_getopts(argc, argv,
'v', MDB_OPT_SETBITS, TRUE, &verbose, NULL) != argc)
return (DCMD_USAGE);
if (!(flags & DCMD_ADDRSPEC)) {
if (mdb_walk_dcmd("cpupart_walk", "cpupart", argc, argv)
== -1) {
mdb_warn("can't walk 'cpupart'");
return (DCMD_ERR);
}
return (DCMD_OK);
}
if (DCMD_HDRSPEC(flags)) {
mdb_printf("%3s %?s %4s %4s %4s\n",
"ID",
"ADDR",
"NRUN",
"#CPU",
"CPUS");
}
if (mdb_vread(&cpupart, sizeof (cpupart_t), addr) == -1) {
mdb_warn("unable to read 'cpupart_t' at %p", addr);
return (DCMD_ERR);
}
mdb_printf("%3d %?p %4d %4d ",
cpupart.cp_id,
addr,
cpupart.cp_kp_queue.disp_nrunnable,
cpupart.cp_ncpus);
if (cpupart.cp_ncpus == 0) {
mdb_printf("\n");
return (DCMD_OK);
}
/*
* figure out what cpus we've got
*/
if (mdb_readsym(&_ncpu, sizeof (int), "_ncpu") == -1) {
mdb_warn("symbol '_ncpu' not found");
return (DCMD_ERR);
}
/*
* allocate enough space for set of longs to hold cpuid bitfield
*/
cpusetsize = BT_BITOUL(_ncpu) * sizeof (ulong_t);
cpuset = mdb_zalloc(cpusetsize, UM_SLEEP | UM_GC);
if (mdb_pwalk("cpupart_cpulist", cpupart_cpulist_callback, cpuset,
addr) == -1) {
mdb_warn("unable to walk cpupart_cpulist");
return (DCMD_ERR);
}
print_cpuset_range(cpuset, cpusetsize/sizeof (ulong_t), 0);
mdb_printf("\n");
/*
* If there are any threads on kp queue and -v is specified
*/
if (verbose && cpupart.cp_kp_queue.disp_nrunnable) {
if (cpupart_disp_threads(&cpupart.cp_kp_queue) != DCMD_OK)
return (DCMD_ERR);
}
return (DCMD_OK);
}
typedef struct cpupart_cpulist_walk {
uintptr_t ccw_firstcpu;
int ccw_cpusleft;
} cpupart_cpulist_walk_t;
int
cpupart_cpulist_walk_init(mdb_walk_state_t *wsp)
{
cpupart_cpulist_walk_t *ccw;
cpupart_t cpupart;
ccw = mdb_alloc(sizeof (cpupart_cpulist_walk_t), UM_SLEEP | UM_GC);
if (mdb_vread(&cpupart, sizeof (cpupart_t), wsp->walk_addr) == -1) {
mdb_warn("couldn't read 'cpupart' at %p", wsp->walk_addr);
return (WALK_ERR);
}
ccw->ccw_firstcpu = (uintptr_t)cpupart.cp_cpulist;
ccw->ccw_cpusleft = cpupart.cp_ncpus;
wsp->walk_data = ccw;
wsp->walk_addr = ccw->ccw_firstcpu;
return (WALK_NEXT);
}
int
cpupart_cpulist_walk_step(mdb_walk_state_t *wsp)
{
cpupart_cpulist_walk_t *ccw = (cpupart_cpulist_walk_t *)
wsp->walk_data;
uintptr_t addr = wsp->walk_addr;
cpu_t cpu;
int status;
if (mdb_vread(&cpu, sizeof (cpu_t), addr) == -1) {
mdb_warn("couldn't read 'cpupart' at %p", addr);
return (WALK_ERR);
}
status = wsp->walk_callback(addr, &cpu, wsp->walk_cbdata);
if (status != WALK_NEXT)
return (status);
addr = (uintptr_t)cpu.cpu_next_part;
wsp->walk_addr = addr;
ccw->ccw_cpusleft--;
if (ccw->ccw_cpusleft < 0) {
mdb_warn("cpu count doesn't match cpupart list");
return (WALK_ERR);
}
if (ccw->ccw_firstcpu == addr) {
if (ccw->ccw_cpusleft != 0) {
mdb_warn("cpu count doesn't match cpupart list");
return (WALK_ERR);
}
return (WALK_DONE);
}
return (WALK_NEXT);
}
int
cpupart_walk_init(mdb_walk_state_t *wsp)
{
GElf_Sym sym;
uintptr_t addr;
if (mdb_lookup_by_name("cp_default", &sym) == -1) {
mdb_warn("failed to find 'cp_default'\n");
return (WALK_ERR);
}
addr = (uintptr_t)sym.st_value;
wsp->walk_data = (void *)addr;
wsp->walk_addr = addr;
return (WALK_NEXT);
}
int
cpupart_walk_step(mdb_walk_state_t *wsp)
{
cpupart_t cpupart;
int status;
if (mdb_vread(&cpupart, sizeof (cpupart_t),
wsp->walk_addr) == -1) {
mdb_warn("unable to read cpupart at %p",
wsp->walk_addr);
return (WALK_ERR);
}
status = wsp->walk_callback(wsp->walk_addr, &cpupart,
wsp->walk_cbdata);
if (status != WALK_NEXT)
return (status);
wsp->walk_addr = (uintptr_t)cpupart.cp_next;
if (wsp->walk_addr == (uintptr_t)wsp->walk_data)
return (WALK_DONE);
return (WALK_NEXT);
}