summaryrefslogtreecommitdiff
path: root/src/arch/x86/include
diff options
context:
space:
mode:
authorAaron Durbin <adurbin@chromium.org>2015-07-16 16:07:02 -0500
committerAaron Durbin <adurbin@chromium.org>2015-08-13 16:10:17 +0200
commit0dc7354760e889074472ef17652c7f270f3aa529 (patch)
treee909b28b3789b569b8cbe62ec10dbf167474e070 /src/arch/x86/include
parentdb01ddfd49ee6177c738f410496574105e7e5e44 (diff)
amd: raminit sysinfo offset fix
The sysinfo object within the k8 ram init is used to communicate progess/status from all the nodes in the system. However, the code was assuming where the sysinfo object lived in cache-as-ram. The layout of cache-as-ram is dynamic so one needs to do the lookup of the correct address at runtime. The way the amd code is compiled by #include'ing .c files makes the solution a little more complex in that some cache-as-ram support code needed to be refactored. Change-Id: I6500fa7b005dc082c4c0b3382ee2c3a138d9ac31 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/10961 Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/arch/x86/include')
-rw-r--r--src/arch/x86/include/arch/early_variables.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/arch/x86/include/arch/early_variables.h b/src/arch/x86/include/arch/early_variables.h
index d9f1cd76e6..7ccb340cf4 100644
--- a/src/arch/x86/include/arch/early_variables.h
+++ b/src/arch/x86/include/arch/early_variables.h
@@ -20,6 +20,8 @@
#ifndef ARCH_EARLY_VARIABLES_H
#define ARCH_EARLY_VARIABLES_H
+#include <stdlib.h>
+
#if defined(__PRE_RAM__) && IS_ENABLED(CONFIG_CACHE_AS_RAM)
asm(".section .car.global_data,\"w\",@nobits");
asm(".previous");
@@ -43,6 +45,20 @@ void *car_sync_var_ptr(void *var);
#define car_set_var(var, val) \
do { car_get_var(var) = (val); } while(0)
+extern char _car_data_start[];
+extern char _car_data_end[];
+
+static inline size_t car_data_size(void)
+{
+ size_t car_size = &_car_data_end[0] - &_car_data_start[0];
+ return ALIGN(car_size, 64);
+}
+
+static inline size_t car_object_offset(void *ptr)
+{
+ return (char *)ptr - &_car_data_start[0];
+}
+
#else
#define CAR_GLOBAL
static inline void *car_get_var_ptr(void *var) { return var; }