cpu/intel/car: Use symbols for CAR MTRR setup
Change-Id: I32d7337ccf8005c7fb65d2efea40c122093d4dd9
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/30873
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/cpu/intel/car/non-evict/cache_as_ram.S b/src/cpu/intel/car/non-evict/cache_as_ram.S
index d0ec8f1..d087365 100644
--- a/src/cpu/intel/car/non-evict/cache_as_ram.S
+++ b/src/cpu/intel/car/non-evict/cache_as_ram.S
@@ -4,10 +4,6 @@
#include <cpu/x86/cache.h>
#include <cpu/x86/post_code.h>
-#define CACHE_AS_RAM_SIZE (CONFIG_DCACHE_RAM_SIZE \
- + CONFIG_DCACHE_RAM_MRC_VAR_SIZE)
-#define CACHE_AS_RAM_BASE CONFIG_DCACHE_RAM_BASE
-
#define NoEvictMod_MSR 0x2e0
#define BBL_CR_CTL3_MSR 0x11e
@@ -91,7 +87,8 @@
post_code(0x23)
/* Set Cache-as-RAM base address. */
movl $(MTRR_PHYS_BASE(0)), %ecx
- movl $(CACHE_AS_RAM_BASE | MTRR_TYPE_WRBACK), %eax
+ movl $_car_mtrr_start, %eax
+ orl $MTRR_TYPE_WRBACK, %eax
xorl %edx, %edx
wrmsr
@@ -99,18 +96,21 @@
/* Set Cache-as-RAM mask. */
movl $(MTRR_PHYS_MASK(0)), %ecx
rdmsr
- movl $(~(CACHE_AS_RAM_SIZE - 1) | MTRR_PHYS_MASK_VALID), %eax
+ movl $_car_mtrr_mask, %eax
+ orl $MTRR_PHYS_MASK_VALID, %eax
wrmsr
/* Enable cache for our code in Flash because we do XIP here */
movl $MTRR_PHYS_BASE(1), %ecx
xorl %edx, %edx
- movl $(CACHE_ROM_BASE | MTRR_TYPE_WRPROT), %eax
+ movl $_rom_mtrr_base, %eax
+ orl $MTRR_TYPE_WRPROT, %eax
wrmsr
movl $MTRR_PHYS_MASK(1), %ecx
rdmsr
- movl $(~(CACHE_ROM_SIZE - 1) | MTRR_PHYS_MASK_VALID), %eax
+ movl $_rom_mtrr_mask, %eax
+ orl $MTRR_PHYS_MASK_VALID, %eax
wrmsr
post_code(0x25)
@@ -171,10 +171,11 @@
wrmsr
/* Clear the cache memory region. This will also fill up the cache. */
- movl $CACHE_AS_RAM_BASE, %esi
- movl %esi, %edi
- movl $(CACHE_AS_RAM_SIZE >> 2), %ecx
+ cld
xorl %eax, %eax
+ movl $_car_mtrr_start, %edi
+ movl $_car_mtrr_size, %ecx
+ shr $2, %ecx
rep stosl
/* enable the 'no eviction run' state */