import RT-Thread@9217865c without bsp, libcpu and components/net

components/vmm/vmm_iomap.c

@@ -0,0 +1,49 @@
+/*
+ *  VMM IO map table
+ *
+ * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd
+ * All rights reserved
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2013-06-15     Bernard      the first verion
+ */
+#include <rtthread.h>
+#include "vmm.h"
+
+static struct vmm_iomap _vmm_iomap[RT_VMM_IOMAP_MAXNR];
+
+void vmm_iomap_init(struct vmm_iomap *iomap)
+{
+    rt_memcpy(_vmm_iomap, iomap, sizeof(_vmm_iomap));
+}
+
+/* find virtual address according to name */
+unsigned long vmm_find_iomap(const char *name)
+{
+    int i;
+
+    for (i = 0; i < ARRAY_SIZE(_vmm_iomap); i++)
+    {
+        if (rt_strcmp(_vmm_iomap[i].name, name) == 0)
+            return (unsigned long)_vmm_iomap[i].va;
+    }
+
+    return 0;
+}
+
+/* find virtual address according to physcal address */
+unsigned long vmm_find_iomap_by_pa(unsigned long pa)
+{
+    int i;
+
+    for (i = 0; i < ARRAY_SIZE(_vmm_iomap); i++)
+    {
+        if (_vmm_iomap[i].pa == pa)
+            return (unsigned long)_vmm_iomap[i].va;
+    }
+
+    return 0;
+}