1 files changed, 85 insertions, 0 deletions
diff --git a/core/chip.c b/core/chip.c
new file mode 100644
index 00000000..e6eb81c4
--- /dev/null
+++ b/core/chip.c
@@ -0,0 +1,85 @@
+/* Copyright 2013-2014 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * 	http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#include <skiboot.h>
+#include <chip.h>
+#include <device.h>
+
+static struct proc_chip *chips[MAX_CHIPS];
+
+uint32_t pir_to_chip_id(uint32_t pir)
+{
+	if (proc_gen == proc_gen_p8)
+		return P8_PIR2GCID(pir);
+	else
+		return P7_PIR2GCID(pir);
+}
+
+uint32_t pir_to_core_id(uint32_t pir)
+{
+	if (proc_gen == proc_gen_p8)
+		return P8_PIR2COREID(pir);
+	else
+		return P7_PIR2COREID(pir);
+}
+
+uint32_t pir_to_thread_id(uint32_t pir)
+{
+	if (proc_gen == proc_gen_p8)
+		return P8_PIR2THREADID(pir);
+	else
+		return P7_PIR2THREADID(pir);
+}
+
+struct proc_chip *next_chip(struct proc_chip *chip)
+{
+	unsigned int i;
+
+	for (i = chip ? (chip->id + 1) : 0; i < MAX_CHIPS; i++)
+		if (chips[i])
+			return chips[i];
+	return NULL;
+}
+
+
+struct proc_chip *get_chip(uint32_t chip_id)
+{
+	return chips[chip_id];
+}
+
+void init_chips(void)
+{
+	struct proc_chip *chip;
+	struct dt_node *xn;
+
+	/* We walk the chips based on xscom nodes in the tree */
+	dt_for_each_compatible(dt_root, xn, "ibm,xscom") {
+		uint32_t id = dt_get_chip_id(xn);
+
+		assert(id < MAX_CHIPS);
+
+		chip = zalloc(sizeof(struct proc_chip));
+		assert(chip);
+		chip->id = id;
+		chip->devnode = xn;
+		chips[id] = chip;
+		chip->dbob_id = dt_prop_get_u32_def(xn, "ibm,dbob-id",
+						    0xffffffff);
+		chip->pcid = dt_prop_get_u32_def(xn, "ibm,proc-chip-id",
+						 0xffffffff);
+	};
+}