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path: root/src/cpu/intel/model_6fx/cache_as_ram.inc
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Diffstat (limited to 'src/cpu/intel/model_6fx/cache_as_ram.inc')
-rw-r--r--src/cpu/intel/model_6fx/cache_as_ram.inc9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/cpu/intel/model_6fx/cache_as_ram.inc b/src/cpu/intel/model_6fx/cache_as_ram.inc
index dfc4f3b2b9..25d8de28a1 100644
--- a/src/cpu/intel/model_6fx/cache_as_ram.inc
+++ b/src/cpu/intel/model_6fx/cache_as_ram.inc
@@ -22,6 +22,9 @@
#include <cpu/x86/mtrr.h>
#include <cpu/x86/post_code.h>
+#define CPU_MAXPHYADDR 36
+#define CPU_PHYSMASK_HI (1 << (CPU_MAXPHYADDR - 32) - 1)
+
#define CACHE_AS_RAM_SIZE CONFIG_DCACHE_RAM_SIZE
#define CACHE_AS_RAM_BASE CONFIG_DCACHE_RAM_BASE
@@ -71,7 +74,7 @@ clear_mtrrs:
/* Set Cache-as-RAM mask. */
movl $(MTRRphysMask_MSR(0)), %ecx
movl $(~(CACHE_AS_RAM_SIZE - 1) | MTRRphysMaskValid), %eax
- movl $0x0000000f, %edx
+ movl $CPU_PHYSMASK_HI, %edx
wrmsr
/* Enable MTRR. */
@@ -119,7 +122,7 @@ clear_mtrrs:
wrmsr
movl $MTRRphysMask_MSR(1), %ecx
- movl $0x0000000f, %edx
+ movl $CPU_PHYSMASK_HI, %edx
movl $(~(CONFIG_XIP_ROM_SIZE - 1) | MTRRphysMaskValid), %eax
wrmsr
#endif /* CONFIG_XIP_ROM_SIZE */
@@ -204,7 +207,7 @@ clear_mtrrs:
wrmsr
movl $MTRRphysMask_MSR(0), %ecx
movl $(~(1024 * 1024 - 1) | MTRRphysMaskValid), %eax
- movl $0x0000000f, %edx // 36bit address space
+ movl $CPU_PHYSMASK_HI, %edx
wrmsr
post_code(0x39)