[commit] r993 - trunk/openbios-devel/arch/ppc/qemu

[repository service]

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

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)
 {