- Add a 'show rman <rm>' DDB command to dump the resources in a resource
manager similar to 'devinfo -u'. - Add a 'show allrman' DDB command that effectively does 'show rman' on all resource managers in the system.
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=168791
@ -55,6 +55,8 @@
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* permitted.
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*/
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#include "opt_ddb.h"
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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@ -70,6 +72,10 @@ __FBSDID("$FreeBSD$");
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#include <sys/rman.h>
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#include <sys/sysctl.h>
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#ifdef DDB
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#include <ddb/ddb.h>
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#endif
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/*
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* We use a linked list rather than a bitmap because we need to be able to
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* represent potentially huge objects (like all of a processor's physical
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@ -911,3 +917,47 @@ sysctl_rman(SYSCTL_HANDLER_ARGS)
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SYSCTL_NODE(_hw_bus, OID_AUTO, rman, CTLFLAG_RD, sysctl_rman,
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"kernel resource manager");
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#ifdef DDB
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static void
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dump_rman(struct rman *rm)
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{
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struct resource_i *r;
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const char *devname;
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if (db_pager_quit)
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return;
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db_printf("rman: %s\n", rm->rm_descr);
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db_printf(" 0x%lx-0x%lx (full range)\n", rm->rm_start, rm->rm_end);
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TAILQ_FOREACH(r, &rm->rm_list, r_link) {
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if (r->r_dev != NULL) {
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devname = device_get_nameunit(r->r_dev);
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if (devname == NULL)
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devname = "nomatch";
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} else
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devname = NULL;
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db_printf(" 0x%lx-0x%lx ", r->r_start, r->r_end);
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if (devname != NULL)
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db_printf("(%s)\n", devname);
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else
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db_printf("----\n");
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if (db_pager_quit)
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return;
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}
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}
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DB_SHOW_COMMAND(rman, db_show_rman)
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{
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if (have_addr)
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dump_rman((struct rman *)addr);
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}
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DB_SHOW_COMMAND(allrman, db_show_all_rman)
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{
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struct rman *rm;
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TAILQ_FOREACH(rm, &rman_head, rm_link)
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dump_rman(rm);
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}
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#endif
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