soc/amd/genoa: Add basic ACPI support
- DSDT
- MADT
- SSDT CPUs
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I0c86694ae83e9e6aa06a50a8a35bf2b24bc8ab65
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76530
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/amd/genoa/acpi.c b/src/soc/amd/genoa/acpi.c
new file mode 100644
index 0000000..1f7b7bf
--- /dev/null
+++ b/src/soc/amd/genoa/acpi.c
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/* ACPI - create the Fixed ACPI Description Tables (FADT) */
+
+#include <acpi/acpi.h>
+#include <amdblocks/acpi.h>
+#include <amdblocks/acpimmio.h>
+#include <amdblocks/cpu.h>
+#include <amdblocks/data_fabric.h>
+#include <arch/ioapic.h>
+#include <console/console.h>
+#include <vendorcode/amd/opensil/genoa_poc/opensil.h>
+
+/* TODO: this can go in a common place */
+unsigned long acpi_fill_madt(unsigned long current)
+{
+ struct device *dev = NULL;
+ while ((dev = dev_find_path(dev, DEVICE_PATH_DOMAIN)) != NULL) {
+ struct resource *res = probe_resource(dev, IOMMU_IOAPIC_IDX);
+ if (!res)
+ continue;
+
+ current += acpi_create_madt_ioapic_from_hw((acpi_madt_ioapic_t *)current,
+ res->base);
+ }
+
+ return current;
+}
+
+void acpi_fill_fadt(acpi_fadt_t *fadt)
+{
+ /* Fill in pm1_evt, pm1_cnt, pm_tmr, gpe0_blk from openSIL input structure */
+ opensil_fill_fadt_io_ports(fadt);
+
+ fadt->pm1_evt_len = 4; /* 32 bits */
+ fadt->pm1_cnt_len = 2; /* 16 bits */
+ fadt->pm_tmr_len = 4; /* 32 bits */
+ fadt->gpe0_blk_len = 8; /* 64 bits */
+
+ fill_fadt_extended_pm_regs(fadt);
+
+ fadt->iapc_boot_arch = ACPI_FADT_LEGACY_FREE; /* legacy free default */
+ fadt->flags |= ACPI_FADT_WBINVD | /* See table 5-34 ACPI 6.3 spec */
+ ACPI_FADT_C1_SUPPORTED |
+ ACPI_FADT_S4_RTC_WAKE |
+ ACPI_FADT_32BIT_TIMER |
+ ACPI_FADT_PCI_EXPRESS_WAKE |
+ ACPI_FADT_PLATFORM_CLOCK |
+ ACPI_FADT_S4_RTC_VALID |
+ ACPI_FADT_REMOTE_POWER_ON;
+
+ fadt->x_firmware_ctl_l = 0; /* set to 0 if firmware_ctrl is used */
+ fadt->x_firmware_ctl_h = 0;
+}
+
+/* There are only the following 2 C-states reported by the reference firmware */
+const acpi_cstate_t cstate_cfg_table[] = {
+ [0] = {
+ .ctype = 1,
+ .latency = 1,
+ .power = 0,
+ },
+ [1] = {
+ .ctype = 2,
+ .latency = 0x12,
+ .power = 0,
+ },
+};
+
+const acpi_cstate_t *get_cstate_config_data(size_t *size)
+{
+ *size = ARRAY_SIZE(cstate_cfg_table);
+ return cstate_cfg_table;
+}