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Change sysctl to be named after the first CPU in the DVFS domain.

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old: machdep.cpu.frequency.*, machdep.cpufreqdt4.frequency.*
  new: machdep.cpufreq.cpu0.*, machdep.cpufreq.cpu4.*
This commit is contained in:
jmcneill 2019-10-06 11:28:24 +00:00
parent 5718b48b2f
commit 993288ab5c
1 changed files with 34 additions and 16 deletions
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50
sys/dev/fdt/cpufreq_dt.c
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@ -1,4 +1,4 @@
/* $NetBSD: cpufreq_dt.c,v 1.8 2019/05/21 22:15:26 jmcneill Exp $ */
/* $NetBSD: cpufreq_dt.c,v 1.9 2019/10/06 11:28:24 jmcneill Exp $ */
/*-
* Copyright (c) 2015-2017 Jared McNeill <jmcneill@invisible.ca>
@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cpufreq_dt.c,v 1.8 2019/05/21 22:15:26 jmcneill Exp $");
__KERNEL_RCSID(0, "$NetBSD: cpufreq_dt.c,v 1.9 2019/10/06 11:28:24 jmcneill Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -39,6 +39,7 @@ __KERNEL_RCSID(0, "$NetBSD: cpufreq_dt.c,v 1.8 2019/05/21 22:15:26 jmcneill Exp
#include <sys/sysctl.h>
#include <sys/queue.h>
#include <sys/once.h>
#include <sys/cpu.h>
#include <dev/fdt/fdtvar.h>
@ -250,14 +251,36 @@ cpufreq_dt_sysctl_helper(SYSCTLFN_ARGS)
return error;
}
static struct cpu_info *
cpufreq_dt_cpu_lookup(cpuid_t mpidr)
{
CPU_INFO_ITERATOR cii;
struct cpu_info *ci;
for (CPU_INFO_FOREACH(cii, ci)) {
if (ci->ci_cpuid == mpidr)
return ci;
}
return NULL;
}
static void
cpufreq_dt_init_sysctl(struct cpufreq_dt_softc *sc)
{
const struct sysctlnode *node, *cpunode, *freqnode;
const struct sysctlnode *node, *cpunode;
struct sysctllog *cpufreq_log = NULL;
const char *cpunodename;
struct cpu_info *ci;
uint64_t mpidr;
int error, i;
if (fdtbus_get_reg(sc->sc_phandle, 0, &mpidr, 0) != 0)
return;
ci = cpufreq_dt_cpu_lookup(mpidr);
if (ci == NULL)
return;
sc->sc_freq_available = kmem_zalloc(strlen("XXXX ") * sc->sc_nopp, KM_SLEEP);
for (i = 0; i < sc->sc_nopp; i++) {
char buf[6];
@ -265,28 +288,23 @@ cpufreq_dt_init_sysctl(struct cpufreq_dt_softc *sc)
strcat(sc->sc_freq_available, buf);
}
if (device_unit(sc->sc_dev) == 0)
cpunodename = "cpu";
else
cpunodename = device_xname(sc->sc_dev);
error = sysctl_createv(&cpufreq_log, 0, NULL, &node,
CTLFLAG_PERMANENT, CTLTYPE_NODE, "machdep", NULL,
NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL);
if (error)
goto sysctl_failed;
error = sysctl_createv(&cpufreq_log, 0, &node, &cpunode,
0, CTLTYPE_NODE, cpunodename, NULL,
error = sysctl_createv(&cpufreq_log, 0, &node, &node,
0, CTLTYPE_NODE, "cpufreq", NULL,
NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL);
if (error)
goto sysctl_failed;
error = sysctl_createv(&cpufreq_log, 0, &cpunode, &freqnode,
0, CTLTYPE_NODE, "frequency", NULL,
error = sysctl_createv(&cpufreq_log, 0, &node, &cpunode,
0, CTLTYPE_NODE, cpu_name(ci), NULL,
NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL);
if (error)
goto sysctl_failed;
error = sysctl_createv(&cpufreq_log, 0, &freqnode, &node,
error = sysctl_createv(&cpufreq_log, 0, &cpunode, &node,
CTLFLAG_READWRITE, CTLTYPE_INT, "target", NULL,
cpufreq_dt_sysctl_helper, 0, (void *)sc, 0,
CTL_CREATE, CTL_EOL);
@ -294,7 +312,7 @@ cpufreq_dt_init_sysctl(struct cpufreq_dt_softc *sc)
goto sysctl_failed;
sc->sc_node_target = node->sysctl_num;
error = sysctl_createv(&cpufreq_log, 0, &freqnode, &node,
error = sysctl_createv(&cpufreq_log, 0, &cpunode, &node,
CTLFLAG_READWRITE, CTLTYPE_INT, "current", NULL,
cpufreq_dt_sysctl_helper, 0, (void *)sc, 0,
CTL_CREATE, CTL_EOL);
@ -302,7 +320,7 @@ cpufreq_dt_init_sysctl(struct cpufreq_dt_softc *sc)
goto sysctl_failed;
sc->sc_node_current = node->sysctl_num;
error = sysctl_createv(&cpufreq_log, 0, &freqnode, &node,
error = sysctl_createv(&cpufreq_log, 0, &cpunode, &node,
0, CTLTYPE_STRING, "available", NULL,
NULL, 0, sc->sc_freq_available, 0,
CTL_CREATE, CTL_EOL);