soc/amd: factor out common SMM relocation code

The common code gets moved to soc/amd/common/block/cpu/smm, since it is
related to the CPU cores and soc/amd/common/block/smi is about the SMI/
SCI functionality in the FCH part. Also relocation_handler gets renamed
to smm_relocation_handler to keep it clear what it does, since it got
moved to another compilation unit.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I45224131dfd52247018c5ca19cb37c44062b03eb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50462
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/src/soc/amd/common/block/include/amdblocks/smm.h b/src/soc/amd/common/block/include/amdblocks/smm.h
new file mode 100644
index 0000000000..0fbef42892
--- /dev/null
+++ b/src/soc/amd/common/block/include/amdblocks/smm.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <cpu/x86/msr.h>
+#include <types.h>
+
+struct smm_relocation_params {
+	msr_t tseg_base;
+	msr_t tseg_mask;
+};
+
+void get_smm_info(uintptr_t *perm_smbase, size_t *perm_smsize, size_t *smm_save_state_size);
+void smm_relocation_handler(int cpu, uintptr_t curr_smbase, uintptr_t staggered_smbase);