[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/mips/mti-malta/malta-amon.c b/src/kernel/linux/v4.14/arch/mips/mti-malta/malta-amon.c
new file mode 100644
index 0000000..84ac523
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/mips/mti-malta/malta-amon.c
@@ -0,0 +1,88 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2007 MIPS Technologies, Inc. All rights reserved.
+ * Copyright (C) 2013 Imagination Technologies Ltd.
+ *
+ * Arbitrary Monitor Interface
+ */
+#include <linux/kernel.h>
+#include <linux/smp.h>
+
+#include <asm/addrspace.h>
+#include <asm/mipsmtregs.h>
+#include <asm/mips-boards/launch.h>
+#include <asm/vpe.h>
+
+int amon_cpu_avail(int cpu)
+{
+ struct cpulaunch *launch = (struct cpulaunch *)CKSEG0ADDR(CPULAUNCH);
+
+ if (cpu < 0 || cpu >= NCPULAUNCH) {
+ pr_debug("avail: cpu%d is out of range\n", cpu);
+ return 0;
+ }
+
+ launch += cpu;
+ if (!(launch->flags & LAUNCH_FREADY)) {
+ pr_debug("avail: cpu%d is not ready\n", cpu);
+ return 0;
+ }
+ if (launch->flags & (LAUNCH_FGO|LAUNCH_FGONE)) {
+ pr_debug("avail: too late.. cpu%d is already gone\n", cpu);
+ return 0;
+ }
+
+ return 1;
+}
+
+int amon_cpu_start(int cpu,
+ unsigned long pc, unsigned long sp,
+ unsigned long gp, unsigned long a0)
+{
+ volatile struct cpulaunch *launch =
+ (struct cpulaunch *)CKSEG0ADDR(CPULAUNCH);
+
+ if (!amon_cpu_avail(cpu))
+ return -1;
+ if (cpu == smp_processor_id()) {
+ pr_debug("launch: I am cpu%d!\n", cpu);
+ return -1;
+ }
+ launch += cpu;
+
+ pr_debug("launch: starting cpu%d\n", cpu);
+
+ launch->pc = pc;
+ launch->gp = gp;
+ launch->sp = sp;
+ launch->a0 = a0;
+
+ smp_wmb(); /* Target must see parameters before go */
+ launch->flags |= LAUNCH_FGO;
+ smp_wmb(); /* Target must see go before we poll */
+
+ while ((launch->flags & LAUNCH_FGONE) == 0)
+ ;
+ smp_rmb(); /* Target will be updating flags soon */
+ pr_debug("launch: cpu%d gone!\n", cpu);
+
+ return 0;
+}
+
+#ifdef CONFIG_MIPS_VPE_LOADER_CMP
+int vpe_run(struct vpe *v)
+{
+ struct vpe_notifications *n;
+
+ if (amon_cpu_start(aprp_cpu_index(), v->__start, 0, 0, 0) < 0)
+ return -1;
+
+ list_for_each_entry(n, &v->notify, list)
+ n->start(VPE_MODULE_MINOR);
+
+ return 0;
+}
+#endif