Module Name: src
Committed By: simonb
Date: Mon Mar 29 03:27:38 UTC 2021
Added Files:
src/external/cddl/osnet/dev/cyclic/mips: cyclic_machdep.c
Log Message:
Add cyclic_machdep.c for MIPS
The code is identical to i386's one.
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 \
src/external/cddl/osnet/dev/cyclic/mips/cyclic_machdep.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Added files:
Index: src/external/cddl/osnet/dev/cyclic/mips/cyclic_machdep.c
diff -u /dev/null src/external/cddl/osnet/dev/cyclic/mips/cyclic_machdep.c:1.1
--- /dev/null Mon Mar 29 03:27:38 2021
+++ src/external/cddl/osnet/dev/cyclic/mips/cyclic_machdep.c Mon Mar 29 03:27:38 2021
@@ -0,0 +1,148 @@
+/* $NetBSD: cyclic_machdep.c,v 1.1 2021/03/29 03:27:38 simonb Exp $ */
+
+/*-
+ * Copyright 2006-2008 John Birrell <j...@freebsd.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD: head/sys/cddl/dev/cyclic/i386/cyclic_machdep.c 222813 2011-06-07 08:46:13Z attilio $
+ *
+ */
+
+static void enable(cyb_arg_t);
+static void disable(cyb_arg_t);
+static void reprogram(cyb_arg_t, hrtime_t);
+static void xcall(cyb_arg_t, cpu_t *, cyc_func_t, void *);
+
+static cyc_backend_t be = {
+ NULL, /* cyb_configure */
+ NULL, /* cyb_unconfigure */
+ enable,
+ disable,
+ reprogram,
+ xcall,
+ NULL /* cyb_arg_t cyb_arg */
+};
+
+static void
+cyclic_ap_start(void *dummy)
+{
+ /* Initialise the rest of the CPUs. */
+ cyclic_mp_init();
+}
+
+SYSINIT(cyclic_ap_start, SI_SUB_SMP, SI_ORDER_ANY, cyclic_ap_start, NULL);
+
+/*
+ * Machine dependent cyclic subsystem initialisation.
+ */
+static void
+cyclic_machdep_init(void)
+{
+ /* Register the cyclic backend. */
+ cyclic_init(&be);
+#ifdef __NetBSD__
+ cyclic_ap_start(NULL);
+#endif
+}
+
+static void
+cyclic_machdep_uninit(void)
+{
+ int i;
+
+ for (i = 0; i <= mp_maxid; i++)
+ /* Reset the cyclic clock callback hook. */
+ cyclic_clock_func[i] = NULL;
+
+ /* De-register the cyclic backend. */
+ cyclic_uninit();
+}
+
+static hrtime_t exp_due[MAXCPU];
+
+/*
+ * This function is the one registered by the machine dependent
+ * initialiser as the callback for high speed timer events.
+ */
+static void
+cyclic_clock(struct clockframe *frame)
+{
+ cpu_t *c = &solaris_cpu[cpu_number()];
+
+ if (c->cpu_cyclic != NULL && gethrtime() >= exp_due[cpu_number()]) {
+ if (TRAPF_USERMODE(frame)) {
+ c->cpu_profile_pc = 0;
+ c->cpu_profile_upc = TRAPF_PC(frame);
+ } else {
+ c->cpu_profile_pc = TRAPF_PC(frame);
+ c->cpu_profile_upc = 0;
+ }
+
+ c->cpu_intr_actv = 1;
+
+ /* Fire any timers that are due. */
+ cyclic_fire(c);
+
+ c->cpu_intr_actv = 0;
+ }
+}
+
+static void enable(cyb_arg_t arg)
+{
+ /* Register the cyclic clock callback function. */
+ cyclic_clock_func[cpu_number()] = cyclic_clock;
+}
+
+static void disable(cyb_arg_t arg)
+{
+ /* Reset the cyclic clock callback function. */
+ cyclic_clock_func[cpu_number()] = NULL;
+}
+
+static void reprogram(cyb_arg_t arg, hrtime_t exp)
+{
+ exp_due[cpu_number()] = exp;
+}
+
+#ifdef __NetBSD__
+static void xcall_func(void *arg0, void *arg1)
+{
+ cyc_func_t func;
+
+ func = arg0;
+ (*func)(arg1);
+}
+#endif
+
+static void xcall(cyb_arg_t arg, cpu_t *c, cyc_func_t func, void *param)
+{
+#ifdef __NetBSD__
+ uint64_t xc;
+
+ xc = xc_unicast(XC_HIGHPRI, xcall_func, func, param, cpu_lookup(c->cpuid));
+ xc_wait(xc);
+#else
+ smp_rendezvous_cpus((cpumask_t) (1 << c->cpuid),
+ smp_no_rendevous_barrier, func, smp_no_rendevous_barrier, param);
+#endif
+}
