soc/amd: factor out common acpi_add_ivrs_table implementation

Instead of open-coding this functionality in all AMD SoCs, factor it out
into a common implementation.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Idb65c398b747e70ec67107e0a1d4bd6551501347
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80208
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Varshit Pandya <pandyavarshit@gmail.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>

src/soc/amd/cezanne/agesa_acpi.c

@@ -10,20 +10,14 @@
 uintptr_t agesa_write_acpi_tables(const struct device *device, uintptr_t current,
 				  acpi_rsdp_t *rsdp)
 {
-	acpi_ivrs_t *ivrs;
-
 	/* TODO: look into adding CRAT */
 
 	/* add ALIB SSDT from HOB */
 	current = acpi_align_current(current);
 	current = add_agesa_fsp_acpi_table(AMD_FSP_ACPI_ALIB_HOB_GUID, "ALIB", rsdp, current);
 
 	/* IVRS */
-	current = acpi_align_current(current);
-	ivrs = (acpi_ivrs_t *)current;
-	acpi_create_ivrs(ivrs, acpi_fill_ivrs);
-	current += ivrs->header.length;
-	acpi_add_table(rsdp, ivrs);
+	current = acpi_add_ivrs_table(current, rsdp);
 
 	return current;
 }

src/soc/amd/common/block/acpi/ivrs.c

@@ -297,7 +297,7 @@ static unsigned long acpi_fill_ivrs11(unsigned long current, acpi_ivrs_ivhd_t *i
 	return acpi_fill_ivrs40(current, ivhd, nb_dev, iommu_dev);
 }
 
-unsigned long acpi_fill_ivrs(acpi_ivrs_t *ivrs, unsigned long current)
+static unsigned long acpi_fill_ivrs(acpi_ivrs_t *ivrs, unsigned long current)
 {
 	unsigned long current_backup;
 	uint64_t mmio_x30_value;
@@ -433,3 +433,16 @@ unsigned long acpi_fill_ivrs(acpi_ivrs_t *ivrs, unsigned long current)
 
 	return current;
 }
+
+unsigned long acpi_add_ivrs_table(unsigned long current, acpi_rsdp_t *rsdp)
+{
+	acpi_ivrs_t *ivrs;
+
+	current = acpi_align_current(current);
+	ivrs = (acpi_ivrs_t *)current;
+	acpi_create_ivrs(ivrs, acpi_fill_ivrs);
+	current += ivrs->header.length;
+	acpi_add_table(rsdp, ivrs);
+
+	return current;
+}

src/soc/amd/common/block/include/amdblocks/acpi.h

@@ -56,6 +56,6 @@ uintptr_t add_agesa_fsp_acpi_table(guid_t guid, const char *name, acpi_rsdp_t *r
 				   uintptr_t current);
 
 void acpi_log_events(const struct chipset_power_state *ps);
-unsigned long acpi_fill_ivrs(acpi_ivrs_t *ivrs, unsigned long current);
+unsigned long acpi_add_ivrs_table(unsigned long current, acpi_rsdp_t *rsdp);
 
 #endif /* AMD_BLOCK_ACPI_H */

src/soc/amd/genoa_poc/acpi.c

@@ -42,12 +42,7 @@ unsigned long soc_acpi_write_tables(const struct device *device, unsigned long c
 				    struct acpi_rsdp *rsdp)
 {
 	/* IVRS */
-	acpi_ivrs_t *ivrs;
-	current = acpi_align_current(current);
-	ivrs = (acpi_ivrs_t *)current;
-	acpi_create_ivrs(ivrs, acpi_fill_ivrs);
-	current += ivrs->header.length;
-	acpi_add_table(rsdp, ivrs);
+	current = acpi_add_ivrs_table(current, rsdp);
 
 	return current;
 }

src/soc/amd/glinda/agesa_acpi.c

@@ -12,20 +12,14 @@
 uintptr_t agesa_write_acpi_tables(const struct device *device, uintptr_t current,
 				  acpi_rsdp_t *rsdp)
 {
-	acpi_ivrs_t *ivrs;
-
 	/* TODO: look into adding CRAT */
 
 	/* add ALIB SSDT from HOB */
 	current = acpi_align_current(current);
 	current = add_agesa_fsp_acpi_table(AMD_FSP_ACPI_ALIB_HOB_GUID, "ALIB", rsdp, current);
 
 	/* IVRS */
-	current = acpi_align_current(current);
-	ivrs = (acpi_ivrs_t *)current;
-	acpi_create_ivrs(ivrs, acpi_fill_ivrs);
-	current += ivrs->header.length;
-	acpi_add_table(rsdp, ivrs);
+	current = acpi_add_ivrs_table(current, rsdp);
 
 	return current;
 }

src/soc/amd/mendocino/agesa_acpi.c

@@ -12,20 +12,14 @@
 uintptr_t agesa_write_acpi_tables(const struct device *device, uintptr_t current,
 				  acpi_rsdp_t *rsdp)
 {
-	acpi_ivrs_t *ivrs;
-
 	/* TODO: look into adding CRAT */
 
 	/* add ALIB SSDT from HOB */
 	current = acpi_align_current(current);
 	current = add_agesa_fsp_acpi_table(AMD_FSP_ACPI_ALIB_HOB_GUID, "ALIB", rsdp, current);
 
 	/* IVRS */
-	current = acpi_align_current(current);
-	ivrs = (acpi_ivrs_t *)current;
-	acpi_create_ivrs(ivrs, acpi_fill_ivrs);
-	current += ivrs->header.length;
-	acpi_add_table(rsdp, ivrs);
+	current = acpi_add_ivrs_table(current, rsdp);
 
 	return current;
 }

src/soc/amd/phoenix/agesa_acpi.c

@@ -13,20 +13,14 @@
 uintptr_t agesa_write_acpi_tables(const struct device *device, uintptr_t current,
 				  acpi_rsdp_t *rsdp)
 {
-	acpi_ivrs_t *ivrs;
-
 	/* TODO: look into adding CRAT */
 
 	/* add ALIB SSDT from HOB */
 	current = acpi_align_current(current);
 	current = add_agesa_fsp_acpi_table(AMD_FSP_ACPI_ALIB_HOB_GUID, "ALIB", rsdp, current);
 
 	/* IVRS */
-	current = acpi_align_current(current);
-	ivrs = (acpi_ivrs_t *)current;
-	acpi_create_ivrs(ivrs, acpi_fill_ivrs);
-	current += ivrs->header.length;
-	acpi_add_table(rsdp, ivrs);
+	current = acpi_add_ivrs_table(current, rsdp);
 
 	return current;
 }

src/soc/amd/picasso/agesa_acpi.c

@@ -542,7 +542,6 @@ static unsigned long acpi_fill_crat(struct acpi_crat_header *crat, unsigned long
 uintptr_t agesa_write_acpi_tables(const struct device *device, uintptr_t current,
 				  acpi_rsdp_t *rsdp)
 {
-	acpi_ivrs_t *ivrs;
 	struct acpi_crat_header *crat;
 
 	/* CRAT */
@@ -557,11 +556,7 @@ uintptr_t agesa_write_acpi_tables(const struct device *device, uintptr_t current
 	current = add_agesa_fsp_acpi_table(AMD_FSP_ACPI_ALIB_HOB_GUID, "ALIB", rsdp, current);
 
 	/* IVRS */
-	current = acpi_align_current(current);
-	ivrs = (acpi_ivrs_t *)current;
-	acpi_create_ivrs(ivrs, acpi_fill_ivrs);
-	current += ivrs->header.length;
-	acpi_add_table(rsdp, ivrs);
+	current = acpi_add_ivrs_table(current, rsdp);
 
 	/* Add SRAT, MSCT, SLIT if needed in the future */