[OpenBIOS] [commit] r993 - trunk/openbios-devel/arch/ppc/qemu
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svn at openbios.org
Thu Dec 30 14:56:18 CET 2010
Author: mcayland
Date: Thu Dec 30 14:56:17 2010
New Revision: 993
URL: http://tracker.coreboot.org/trac/openbios/changeset/993
Log:
Introduce va2pa() and pa2va() functions for PPC for subsequent use by OFMEM.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland at siriusit.co.uk>
Modified:
trunk/openbios-devel/arch/ppc/qemu/ofmem.c
Modified: trunk/openbios-devel/arch/ppc/qemu/ofmem.c
==============================================================================
--- trunk/openbios-devel/arch/ppc/qemu/ofmem.c Thu Dec 30 14:56:14 2010 (r992)
+++ trunk/openbios-devel/arch/ppc/qemu/ofmem.c Thu Dec 30 14:56:17 2010 (r993)
@@ -180,6 +180,27 @@
/* OF private allocations */
/************************************************************************/
+/* Private functions for mapping between physical/virtual addresses */
+phys_addr_t
+va2pa(unsigned long va)
+{
+ if (va >= OF_CODE_START && va < OF_CODE_START + OF_CODE_SIZE) {
+ return (phys_addr_t)get_rom_base() - OF_CODE_START + va;
+ } else {
+ return (phys_addr_t)va;
+ }
+}
+
+unsigned long
+pa2va(phys_addr_t pa)
+{
+ if ((pa - get_rom_base() + OF_CODE_START >= OF_CODE_START) &&
+ (pa - get_rom_base() + OF_CODE_START < OF_CODE_START + OF_CODE_SIZE))
+ return (unsigned long)pa - get_rom_base() + OF_CODE_START;
+ else
+ return (unsigned long)pa;
+}
+
void *
malloc(int size)
{
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