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authorKyösti Mälkki <kyosti.malkki@gmail.com>2013-06-27 08:20:09 +0300
committerKyösti Mälkki <kyosti.malkki@gmail.com>2013-09-11 07:06:15 +0200
commite7e847cd5c60d51bf5a50663a191b4e622c5c234 (patch)
tree9428184b19d697da741c9f87280df227c7f3c872 /src/arch/x86
parent9c7d73ca3f5b2985cb0f498038a746bcc0f2cac7 (diff)
CBMEM AMD: Remove references to global high_tables_base
Prepare for removal of globals high_tables_base and _size by replacing the references with a helper function. Added set_top_of_ram_once() may be called several times, but only the first call (with non-zero argument) takes effect. Change-Id: I5b5f71630f03b6a01e9c8ff96cb78e9da03e5cc3 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3894 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@google.com>
Diffstat (limited to 'src/arch/x86')
-rw-r--r--src/arch/x86/boot/Makefile.inc1
-rw-r--r--src/arch/x86/boot/cbmem.c35
2 files changed, 36 insertions, 0 deletions
diff --git a/src/arch/x86/boot/Makefile.inc b/src/arch/x86/boot/Makefile.inc
index 7b67e49c1c..9334839a62 100644
--- a/src/arch/x86/boot/Makefile.inc
+++ b/src/arch/x86/boot/Makefile.inc
@@ -2,6 +2,7 @@ ramstage-y += boot.c
ramstage-$(CONFIG_MULTIBOOT) += multiboot.c
ramstage-y += gdt.c
ramstage-y += tables.c
+ramstage-y += cbmem.c
ramstage-$(CONFIG_GENERATE_MP_TABLE) += mpspec.c
ramstage-$(CONFIG_GENERATE_PIRQ_TABLE) += pirq_routing.c
ramstage-$(CONFIG_GENERATE_ACPI_TABLES) += acpi.c
diff --git a/src/arch/x86/boot/cbmem.c b/src/arch/x86/boot/cbmem.c
new file mode 100644
index 0000000000..888c1f4058
--- /dev/null
+++ b/src/arch/x86/boot/cbmem.c
@@ -0,0 +1,35 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <cbmem.h>
+
+#if !CONFIG_DYNAMIC_CBMEM
+/* This is for compatibility with old boards only. Any new chipset and board
+ * must implement get_top_of_ram() for both romstage and ramstage to support
+ * features like CAR_MIGRATION and CBMEM_CONSOLE.
+ */
+void set_top_of_ram_once(uint64_t ramtop)
+{
+ if (high_tables_base == 0) {
+ high_tables_base = ramtop - HIGH_MEMORY_SIZE;
+ high_tables_size = HIGH_MEMORY_SIZE;
+ }
+ printk(BIOS_DEBUG, "high_tables_base: %08llx, size %lld\n",
+ high_tables_base, high_tables_size);
+}
+#endif