1 files changed, 92 insertions, 0 deletions
diff --git a/arch/mips/sibyte/cfe/smp.c b/arch/mips/sibyte/cfe/smp.c
new file mode 100644
index 0000000..7339219
--- /dev/null
+++ b/arch/mips/sibyte/cfe/smp.c
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2000, 2001, 2002, 2003 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/smp.h>
+#include <asm/processor.h>
+
+#include "cfe_api.h"
+#include "cfe_error.h"
+
+/*
+ * Use CFE to find out how many CPUs are available, setting up
+ * phys_cpu_present_map and the logical/physical mappings.
+ * XXXKW will the boot CPU ever not be physical 0?
+ *
+ * Common setup before any secondaries are started
+ */
+void __init prom_prepare_cpus(unsigned int max_cpus)
+{
+	int i, num;
+
+	cpus_clear(phys_cpu_present_map);
+	cpu_set(0, phys_cpu_present_map);
+	__cpu_number_map[0] = 0;
+	__cpu_logical_map[0] = 0;
+
+	for (i=1, num=0; i<NR_CPUS; i++) {
+		if (cfe_cpu_stop(i) == 0) {
+			cpu_set(i, phys_cpu_present_map);
+			__cpu_number_map[i] = ++num;
+			__cpu_logical_map[num] = i;
+		}
+	}
+	printk("Detected %i available secondary CPU(s)\n", num);
+}
+
+/*
+ * Setup the PC, SP, and GP of a secondary processor and start it
+ * running!
+ */
+void prom_boot_secondary(int cpu, struct task_struct *idle)
+{
+	int retval;
+	
+	retval = cfe_cpu_start(cpu_logical_map(cpu), &smp_bootstrap,
+			       __KSTK_TOS(idle),
+			       (unsigned long)idle->thread_info, 0);
+	if (retval != 0)
+		printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval);
+}
+
+/*
+ * Code to run on secondary just after probing the CPU
+ */
+void prom_init_secondary(void)
+{
+	extern void sb1250_smp_init(void);
+	sb1250_smp_init();
+}
+
+/*
+ * Do any tidying up before marking online and running the idle
+ * loop
+ */
+void prom_smp_finish(void)
+{
+	extern void sb1250_smp_finish(void);
+	sb1250_smp_finish();
+}
+
+/*
+ * Final cleanup after all secondaries booted
+ */
+void prom_cpus_done(void)
+{
+}