Changeset e731b0d in mainline for boot/genarch/balloc.h

Timestamp:

2009-08-20T16:58:55Z (15 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

b9c7425

Parents:

a11099f

Message:

make ppc32 OFW usage on par with sparc64, make appropriate modifications elsewhere

• introduce ofw_tree_walk_by_device_type() to gather all OFW devices of a given type
• ppc32 uses canonized OFW tree, mac-io and display devices are detected in kernel (not by the boot loader) by means of device type
• various busses (PCI, EBUS, etc.) stay sparc64 specific for now
• boot memcpy() is defined in a common way
• BALLOC_MAX_SIZE is platform-dependent
• ppc32 and sparc64 boot loaders cleanup (removal of obsolete stuff, data is not passed by global variables if not necessary, etc.)
• balloc and OFW tree canonizer have now a provision to support different mapping of the data during boot time and kernel run-time
• OFW tree canonizer uses balloc_rebase() to store pointers suitable for access during kernel run-time (with potentially different memory mapping than during boot time)

File:

• boot/genarch/balloc.h (modified) (2 diffs)

boot/genarch/balloc.h

@@ -32 +32 @@
 #include <types.h>
 
-#define BALLOC_MAX_SIZE         (128 * 1024)
-
 typedef struct {
         uintptr_t base;
@@ -39 +37 @@
 } ballocs_t;
 
-extern void balloc_init(ballocs_t *b, uintptr_t base);
+extern void balloc_init(ballocs_t *ball, uintptr_t base, uintptr_t kernel_base);
 extern void *balloc(size_t size, size_t alignment);
+extern void *balloc_rebase(void *ptr);
 
 #endif