[coreboot] r1071 - coreboot-v3/include/arch/x86

[svn at coreboot.org]

Author: cozzie
Date: 2008-12-11 07:33:29 +0100 (Thu, 11 Dec 2008)
New Revision: 1071

Modified:
   coreboot-v3/include/arch/x86/cpu.h
Log:
Check that the CAR and ROM areas don't collide.

Signed-off-by: Corey Osgood <corey.osgood at gmail.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>



Modified: coreboot-v3/include/arch/x86/cpu.h
===================================================================
--- coreboot-v3/include/arch/x86/cpu.h	2008-12-10 21:23:09 UTC (rev 1070)
+++ coreboot-v3/include/arch/x86/cpu.h	2008-12-11 06:33:29 UTC (rev 1071)
@@ -26,7 +26,15 @@
 #include <device/device.h>
 #include <shared.h>
 #include <mtrr.h>
+#include <config.h>
 
+/* Check that the CAR and ROM areas aren't going to collide */
+#if ((0x100000000 - (CONFIG_COREBOOT_ROMSIZE_KB * 1024)) < (CONFIG_CARBASE + CONFIG_CARSIZE))
+#error Your current Cache-As-Ram base does not allow room to map the selected\
+ chip size to memory. Please select a different chip size or move the CAR\
+ base to another sane location.
+#endif
+
 #define X86_VENDOR_INTEL	0
 #define X86_VENDOR_CYRIX	1
 #define X86_VENDOR_AMD		2