1 // SPDX-License-Identifier: GPL-2.0+
3 * Generic code used to generate ACPI tables
5 * Copyright 2019 Google LLC
9 #include <acpi/acpi_table.h>
13 /* Temporary change to ensure bisectability */
14 #ifndef CONFIG_SANDBOX
15 int acpi_create_dmar(struct acpi_dmar *dmar, enum dmar_flags flags)
17 struct acpi_table_header *header = &dmar->header;
22 ret = uclass_first_device(UCLASS_CPU, &cpu);
24 return log_msg_ret("cpu", ret);
25 ret = cpu_get_info(cpu, &info);
27 return log_msg_ret("info", ret);
28 memset((void *)dmar, 0, sizeof(struct acpi_dmar));
30 /* Fill out header fields. */
31 acpi_fill_header(&dmar->header, "DMAR");
32 header->length = sizeof(struct acpi_dmar);
33 header->revision = acpi_get_table_revision(ACPITAB_DMAR);
35 dmar->host_address_width = info.address_width - 1;
42 int acpi_get_table_revision(enum acpi_tables table)
46 return ACPI_FADT_REV_ACPI_3_0;
48 return ACPI_MADT_REV_ACPI_3_0;
50 return ACPI_MCFG_REV_ACPI_3_0;
52 /* This version and the rest are open-coded */
56 case ACPITAB_SSDT: /* ACPI 3.0 upto 6.3: 2 */
58 case ACPITAB_SRAT: /* ACPI 2.0: 1, ACPI 3.0: 2, ACPI 4.0 to 6.3: 3 */
59 return 1; /* TODO Should probably be upgraded to 2 */
62 case ACPITAB_SLIT: /* ACPI 2.0 upto 6.3: 1 */
64 case ACPITAB_SPMI: /* IMPI 2.0 */
66 case ACPITAB_HPET: /* Currently 1. Table added in ACPI 2.0 */
68 case ACPITAB_VFCT: /* ACPI 2.0/3.0/4.0: 1 */
71 return IVRS_FORMAT_FIXED;
74 case ACPITAB_FACS: /* ACPI 2.0/3.0: 1, ACPI 4.0 to 6.3: 2 */
76 case ACPITAB_RSDT: /* ACPI 1.0 upto 6.3: 1 */
78 case ACPITAB_XSDT: /* ACPI 2.0 upto 6.3: 1 */
80 case ACPITAB_RSDP: /* ACPI 2.0 upto 6.3: 2 */