diff options
Diffstat (limited to 'src/soc/amd/picasso/agesa_acpi.c')
-rw-r--r-- | src/soc/amd/picasso/agesa_acpi.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/soc/amd/picasso/agesa_acpi.c b/src/soc/amd/picasso/agesa_acpi.c new file mode 100644 index 0000000000..fb168a1f5a --- /dev/null +++ b/src/soc/amd/picasso/agesa_acpi.c @@ -0,0 +1,55 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <acpi/acpi.h> +#include <console/console.h> +#include <fsp/util.h> +#include <FspGuids.h> +#include <soc/acpi.h> +#include <stdint.h> + +struct amd_fsp_acpi_hob_info { + uint32_t table_size_in_bytes; + uint8_t total_hobs_for_table; + uint8_t sequence_number; + uint16_t reserved; + uint16_t hob_payload[0xffc8]; +} __packed; + +static uintptr_t add_agesa_acpi_table(guid_t guid, const char *name, acpi_rsdp_t *rsdp, + uintptr_t current) +{ + const struct amd_fsp_acpi_hob_info *data; + void *table = (void *)current; + size_t hob_size; + + data = fsp_find_extension_hob_by_guid(guid.b, &hob_size); + if (!data) { + printk(BIOS_ERR, "AGESA %s ACPI table was not found.\n", name); + return current; + } + + printk(BIOS_INFO, "ACPI: * %s (AGESA).\n", name); + + memcpy(table, data->hob_payload, data->table_size_in_bytes); + + current += data->table_size_in_bytes; + acpi_add_table(rsdp, table); + current = acpi_align_current(current); + + return current; +} + +uintptr_t agesa_write_acpi_tables(const struct device *device, uintptr_t current, + acpi_rsdp_t *rsdp) +{ + printk(BIOS_DEBUG, "Searching for AGESA FSP ACPI Tables\n"); + + current = add_agesa_acpi_table(AMD_FSP_ACPI_SSDT_HOB_GUID, "SSDT", rsdp, current); + current = add_agesa_acpi_table(AMD_FSP_ACPI_CRAT_HOB_GUID, "CRAT", rsdp, current); + current = add_agesa_acpi_table(AMD_FSP_ACPI_ALIB_HOB_GUID, "ALIB", rsdp, current); + current = add_agesa_acpi_table(AMD_FSP_ACPI_IVRS_HOB_GUID, "IVRS", rsdp, current); + + /* Add SRAT, MSCT, SLIT if needed in the future */ + + return current; +} |