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Each ACPI table has its own version number. Add the version numbers in a single function so we can keep them consistent and easily see what versions are supported. Start a new acpi_table file in a generic directory to house this function. We can move things over to this file from x86 as needed. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Generic code used to generate ACPI tables
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*
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* Copyright 2019 Google LLC
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*/
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#include <common.h>
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#include <acpi/acpi_table.h>
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int acpi_get_table_revision(enum acpi_tables table)
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{
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switch (table) {
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case ACPITAB_FADT:
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return ACPI_FADT_REV_ACPI_3_0;
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case ACPITAB_MADT:
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return ACPI_MADT_REV_ACPI_3_0;
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case ACPITAB_MCFG:
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return ACPI_MCFG_REV_ACPI_3_0;
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case ACPITAB_TCPA:
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/* This version and the rest are open-coded */
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return 2;
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case ACPITAB_TPM2:
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return 4;
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case ACPITAB_SSDT: /* ACPI 3.0 upto 6.3: 2 */
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return 2;
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case ACPITAB_SRAT: /* ACPI 2.0: 1, ACPI 3.0: 2, ACPI 4.0 to 6.3: 3 */
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return 1; /* TODO Should probably be upgraded to 2 */
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case ACPITAB_DMAR:
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return 1;
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case ACPITAB_SLIT: /* ACPI 2.0 upto 6.3: 1 */
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return 1;
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case ACPITAB_SPMI: /* IMPI 2.0 */
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return 5;
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case ACPITAB_HPET: /* Currently 1. Table added in ACPI 2.0 */
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return 1;
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case ACPITAB_VFCT: /* ACPI 2.0/3.0/4.0: 1 */
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return 1;
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case ACPITAB_IVRS:
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return IVRS_FORMAT_FIXED;
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case ACPITAB_DBG2:
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return 0;
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case ACPITAB_FACS: /* ACPI 2.0/3.0: 1, ACPI 4.0 to 6.3: 2 */
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return 1;
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case ACPITAB_RSDT: /* ACPI 1.0 upto 6.3: 1 */
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return 1;
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case ACPITAB_XSDT: /* ACPI 2.0 upto 6.3: 1 */
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return 1;
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case ACPITAB_RSDP: /* ACPI 2.0 upto 6.3: 2 */
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return 2;
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case ACPITAB_HEST:
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return 1;
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case ACPITAB_NHLT:
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return 5;
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case ACPITAB_BERT:
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return 1;
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case ACPITAB_SPCR:
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return 2;
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default:
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return -EINVAL;
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}
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}
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