Changeset f2ea5d8 in mainline for boot/arch/sparc64/loader/ofwarch.c

Timestamp:

2006-11-17T20:21:25Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

f18cc64

Parents:

282f2c9c

Message:

sparc64 code to support physical memory that starts on non-zero addresses.
Still needs to be tested on systems with such setup.

File:

• boot/arch/sparc64/loader/ofwarch.c (modified) (4 diffs)

boot/arch/sparc64/loader/ofwarch.c

@@ -1 +1 @@
 /*
  * Copyright (C) 2005 Martin Decky
+ * Copyright (C) 2006 Jakub Jermar
  * All rights reserved.
  *
@@ -38 +39 @@
 #include <register.h>
 #include "main.h"
+#include "asm.h"
 
 void write(const char *str, const int len)
@@ -86 +88 @@
                                          * Start secondary processor.
                                          */
-                                        (void) ofw_call("SUNW,start-cpu", 3, 1, NULL, node, KERNEL_VIRTUAL_ADDRESS, 0);
+                                        (void) ofw_call("SUNW,start-cpu", 3, 1, NULL, node,
+                                                 KERNEL_VIRTUAL_ADDRESS,
+                                                 bootinfo.physmem_start | AP_PROCESSOR);
                                 }
                         }
@@ -94 +98 @@
         return cpus;
 }
+
+/** Get physical memory starting address.
+ *
+ * @param start Pointer to variable where the physical memory starting
+ *              address will be stored.
+ *
+ * @return Non-zero on succes, zero on failure.
+ */
+int ofw_get_physmem_start(uintptr_t *start)
+{
+        uint32_t memreg[4];
+
+        if (ofw_get_property(ofw_memory, "reg", &memreg, sizeof(memreg)) <= 0)
+                return 0;
+
+        *start = (((uint64_t) memreg[0]) << 32) | memreg[1];
+        return 1;
+}
+