Module Name: src
Committed By: jmcneill
Date: Sun Oct 6 11:28:24 UTC 2019
Modified Files:
src/sys/dev/fdt: cpufreq_dt.c
Log Message:
Change sysctl to be named after the first CPU in the DVFS domain.
old: machdep.cpu.frequency.*, machdep.cpufreqdt4.frequency.*
new: machdep.cpufreq.cpu0.*, machdep.cpufreq.cpu4.*
To generate a diff of this commit:
cvs rdiff -u -r1.8 -r1.9 src/sys/dev/fdt/cpufreq_dt.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/fdt/cpufreq_dt.c
diff -u src/sys/dev/fdt/cpufreq_dt.c:1.8 src/sys/dev/fdt/cpufreq_dt.c:1.9
--- src/sys/dev/fdt/cpufreq_dt.c:1.8 Tue May 21 22:15:26 2019
+++ src/sys/dev/fdt/cpufreq_dt.c Sun Oct 6 11:28:24 2019
@@ -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 <jmcne...@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
#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
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
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
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);
