Changeset 61e90dd in mainline for boot/genarch

Timestamp:

2006-09-19T22:42:57Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

16529d5

Parents:

3abe07f5

Message:

Add balloc() (a.k.a boot allocator):

• balloc() only needs to know how to allocate memory.
• Memory allocated via balloc() is supposed to be passed to kernel and never freed by boot itself.
• make kernel aware of boot allocations

More work on OFW device tree:

• use balloc() to efficiently and safely allocate memory for the canonical copy of the device tree

sparc64 boot:

• pass OFW device tree root node pointer to kernel

Location:

boot/genarch

Files:

• balloc.c (added)
• balloc.h (added)
• ofw_tree.c (modified) (1 diff)
• ofw_tree.h (modified) (2 diffs)

boot/genarch/ofw_tree.c

@@ -31 +31 @@
 #include <types.h>
 #include <string.h>
+#include <balloc.h>
 
 static ofw_tree_node_t *ofw_tree_node_alloc(void)
 {
-        return NULL;
+        return balloc(sizeof(ofw_tree_node_t), sizeof(ofw_tree_node_t));
 }
 
 static ofw_tree_property_t *ofw_tree_properties_alloc(unsigned count)
 {
-        return NULL;
+        return balloc(count * sizeof(ofw_tree_property_t), sizeof(ofw_tree_property_t));
 }
 
 static void * ofw_tree_space_alloc(size_t size)
 {
-        return NULL;
+        return balloc(size, size);
 }
 

boot/genarch/ofw_tree.h

@@ -38 +38 @@
 typedef struct ofw_tree_property ofw_tree_property_t;
 
+/** Memory representation of OpenFirmware device tree node. */
 struct ofw_tree_node {
         ofw_tree_node_t *parent;
@@ -43 +44 @@
         ofw_tree_node_t *child;
 
-        unsigned properties;
+        unsigned properties;                    /**< Number of properties. */
         ofw_tree_property_t *property;
 };
 
+/** Memory representation of OpenFirmware device tree node property. */
 struct ofw_tree_property {
         char name[OFW_TREE_PROPERTY_MAX_NAMELEN];