patch-2.4.25 linux-2.4.25/arch/mips/arc/memory.c

• Lines: 40
• Date: 2004-02-18 05:36:30.000000000 -0800
• Orig file: linux-2.4.24/arch/mips/arc/memory.c
• Orig date: 2002-11-28 15:53:09.000000000 -0800

diff -urN linux-2.4.24/arch/mips/arc/memory.c linux-2.4.25/arch/mips/arc/memory.c
@@ -26,6 +26,12 @@
 
 #undef DEBUG
 
+/*
+ * For ARC firmware memory functions the unit of meassuring memory is always
+ * a 4k page of memory
+ */
+#define ARC_PAGE_SHIFT	12
+
 struct linux_mdesc * __init ArcGetMemoryDescriptor(struct linux_mdesc *Current)
 {
 	return (struct linux_mdesc *) ARC_CALL1(get_mdesc, Current);
@@ -127,20 +133,23 @@
 		unsigned long base, size;
 		long type;
 
-		base = p->base << PAGE_SHIFT;
-		size = p->pages << PAGE_SHIFT;
+		base = p->base << ARC_PAGE_SHIFT;
+		size = p->pages << ARC_PAGE_SHIFT;
 		type = prom_memtype_classify(p->type);
 
 		add_memory_region(base, size, type);
 	}
 }
 
-void __init prom_free_prom_memory (void)
+void __init prom_free_prom_memory(void)
 {
 	unsigned long freed = 0;
 	unsigned long addr;
 	int i;
 
+	if (prom_flags & PROM_FLAG_DONT_FREE_TEMP)
+		return 0;
+
 	for (i = 0; i < boot_mem_map.nr_map; i++) {
 		if (boot_mem_map.map[i].type != BOOT_MEM_ROM_DATA)
 			continue;