MIPS -cpu selection support, by Herve Poussineau.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2491 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 97 insertions, 0 deletions

diff --git a/target-mips/translate_init.c b/target-mips/translate_init.c
new file mode 100644
index 0000000000..b7baff1871
--- /dev/null
+++ b/target-mips/translate_init.c
@@ -0,0 +1,97 @@
+/*
+ *  MIPS emulation for qemu: CPU initialisation routines.
+ *
+ *  Copyright (c) 2004-2005 Jocelyn Mayer
+ *  Copyright (c) 2007 Herve Poussineau
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+struct mips_def_t {
+    const unsigned char *name;
+    int32_t CP0_PRid;
+    int32_t CP0_Config0;
+    int32_t CP0_Config1;
+};
+
+/*****************************************************************************/
+/* MIPS CPU definitions */
+static mips_def_t mips_defs[] =
+{
+#ifndef MIPS_HAS_MIPS64
+    {
+        .name = "4Kc",
+        .CP0_PRid = 0x00018000,
+        .CP0_Config0 = MIPS_CONFIG0,
+        .CP0_Config1 = MIPS_CONFIG1,
+    },
+    {
+        .name = "4KEc",
+        .CP0_PRid = 0x00018400,
+        .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR),
+        .CP0_Config1 = MIPS_CONFIG1,
+    },
+    {
+        .name = "24Kf",
+        .CP0_PRid = 0x00019300,
+        .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR),
+        .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP),
+    },
+#else
+    {
+        .name = "R4000",
+        .CP0_PRid = 0x00000400,
+        .CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT),
+        .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP),
+    },
+#endif
+};
+
+int mips_find_by_name (const unsigned char *name, mips_def_t **def)
+{
+    int i, ret;
+
+    ret = -1;
+    *def = NULL;
+    for (i = 0; i < sizeof(mips_defs) / sizeof(mips_defs[0]); i++) {
+        if (strcasecmp(name, mips_defs[i].name) == 0) {
+            *def = &mips_defs[i];
+            ret = 0;
+            break;
+        }
+    }
+
+    return ret;
+}
+
+void mips_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
+{
+    int i;
+
+    for (i = 0; i < sizeof(mips_defs) / sizeof(mips_defs[0]); i++) {
+        (*cpu_fprintf)(f, "MIPS '%s'\n",
+                       mips_defs[i].name);
+    }
+}
+
+int cpu_mips_register (CPUMIPSState *env, mips_def_t *def)
+{
+    if (!def)
+        cpu_abort(env, "Unable to find MIPS CPU definition\n");
+    env->CP0_PRid = def->CP0_PRid;
+    env->CP0_Config0 = def->CP0_Config0;
+    env->CP0_Config1 = def->CP0_Config1;
+    return 0;
+}