soc/amd/picasso: move smm_region to soc/amd/common/block/cpu/noncar

The same functionality is needed on Cezanne.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I40f9d2fe7d144e94369a417225bcca0a299d1f45
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50400
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

1 files changed, 0 insertions, 49 deletions

diff --git a/src/soc/amd/picasso/memmap.c b/src/soc/amd/picasso/memmap.c
index 8424d463b1..970d1373dc 100644
--- a/src/soc/amd/picasso/memmap.c
+++ b/src/soc/amd/picasso/memmap.c
@@ -3,60 +3,11 @@
 #include <assert.h>
 #include <stdint.h>
 #include <console/console.h>
-#include <cpu/x86/smm.h>
-#include <cpu/amd/msr.h>
 #include <arch/bert_storage.h>
 #include <memrange.h>
 #include <fsp/util.h>
 #include <FspGuids.h>
 
-/*
- * For data stored in TSEG, ensure TValid is clear so R/W access can reach
- * the DRAM when not in SMM.
- */
-static void clear_tvalid(void)
-{
-	msr_t hwcr = rdmsr(HWCR_MSR);
-	msr_t mask = rdmsr(SMM_MASK_MSR);
-	int tvalid = !!(mask.lo & SMM_TSEG_VALID);
-
-	if (hwcr.lo & SMM_LOCK) {
-		if (!tvalid) /* not valid but locked means still accessible */
-			return;
-
-		printk(BIOS_ERR, "Error: can't clear TValid, already locked\n");
-		return;
-	}
-
-	mask.lo &= ~SMM_TSEG_VALID;
-	wrmsr(SMM_MASK_MSR, mask);
-}
-
-void smm_region(uintptr_t *start, size_t *size)
-{
-	static int once;
-	struct range_entry tseg;
-	int status;
-
-	*start = 0;
-	*size = 0;
-
-	status = fsp_find_range_hob(&tseg, AMD_FSP_TSEG_HOB_GUID.b);
-
-	if (status < 0) {
-		printk(BIOS_ERR, "Error: unable to find TSEG HOB\n");
-		return;
-	}
-
-	*start = (uintptr_t)range_entry_base(&tseg);
-	*size = range_entry_size(&tseg);
-
-	if (!once) {
-		clear_tvalid();
-		once = 1;
-	}
-}
-
 void bert_reserved_region(void **start, size_t *size)
 {
 	struct range_entry bert;