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https://github.com/AsahiLinux/u-boot
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93f7f82782
A device may want to write out ACPI tables to describe itself to Linux. Add a method to permit this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
153 lines
3.8 KiB
C
153 lines
3.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Tests for ACPI table generation
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*
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* Copyright 2019 Google LLC
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#include <common.h>
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#include <dm.h>
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#include <version.h>
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#include <acpi/acpi_table.h>
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#include <dm/acpi.h>
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#include <dm/test.h>
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#include <test/ut.h>
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#define ACPI_TEST_DEV_NAME "ABCD"
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#define BUF_SIZE 4096
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static int testacpi_write_tables(const struct udevice *dev,
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struct acpi_ctx *ctx)
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{
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struct acpi_dmar *dmar;
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dmar = (struct acpi_dmar *)ctx->current;
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acpi_create_dmar(dmar, DMAR_INTR_REMAP);
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ctx->current += sizeof(struct acpi_dmar);
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return 0;
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}
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static int testacpi_get_name(const struct udevice *dev, char *out_name)
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{
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return acpi_copy_name(out_name, ACPI_TEST_DEV_NAME);
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}
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struct acpi_ops testacpi_ops = {
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.get_name = testacpi_get_name,
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.write_tables = testacpi_write_tables,
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};
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static const struct udevice_id testacpi_ids[] = {
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{ .compatible = "denx,u-boot-acpi-test" },
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{ }
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};
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U_BOOT_DRIVER(testacpi_drv) = {
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.name = "testacpi_drv",
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.of_match = testacpi_ids,
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.id = UCLASS_TEST_ACPI,
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ACPI_OPS_PTR(&testacpi_ops)
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};
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UCLASS_DRIVER(testacpi) = {
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.name = "testacpi",
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.id = UCLASS_TEST_ACPI,
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};
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/* Test ACPI get_name() */
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static int dm_test_acpi_get_name(struct unit_test_state *uts)
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{
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char name[ACPI_NAME_MAX];
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struct udevice *dev;
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ut_assertok(uclass_first_device_err(UCLASS_TEST_ACPI, &dev));
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ut_assertok(acpi_get_name(dev, name));
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ut_asserteq_str(ACPI_TEST_DEV_NAME, name);
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return 0;
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}
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DM_TEST(dm_test_acpi_get_name, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Test acpi_get_table_revision() */
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static int dm_test_acpi_get_table_revision(struct unit_test_state *uts)
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{
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ut_asserteq(1, acpi_get_table_revision(ACPITAB_MCFG));
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ut_asserteq(2, acpi_get_table_revision(ACPITAB_RSDP));
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ut_asserteq(4, acpi_get_table_revision(ACPITAB_TPM2));
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ut_asserteq(-EINVAL, acpi_get_table_revision(ACPITAB_COUNT));
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return 0;
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}
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DM_TEST(dm_test_acpi_get_table_revision,
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DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Test acpi_create_dmar() */
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static int dm_test_acpi_create_dmar(struct unit_test_state *uts)
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{
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struct acpi_dmar dmar;
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ut_assertok(acpi_create_dmar(&dmar, DMAR_INTR_REMAP));
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ut_asserteq(DMAR_INTR_REMAP, dmar.flags);
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ut_asserteq(32 - 1, dmar.host_address_width);
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return 0;
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}
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DM_TEST(dm_test_acpi_create_dmar, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Test acpi_fill_header() */
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static int dm_test_acpi_fill_header(struct unit_test_state *uts)
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{
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struct acpi_table_header hdr;
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/* Make sure these 5 fields are not changed */
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hdr.length = 0x11;
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hdr.revision = 0x22;
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hdr.checksum = 0x33;
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hdr.aslc_revision = 0x44;
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acpi_fill_header(&hdr, "ABCD");
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ut_asserteq_mem("ABCD", hdr.signature, sizeof(hdr.signature));
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ut_asserteq(0x11, hdr.length);
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ut_asserteq(0x22, hdr.revision);
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ut_asserteq(0x33, hdr.checksum);
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ut_asserteq_mem(OEM_ID, hdr.oem_id, sizeof(hdr.oem_id));
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ut_asserteq_mem(OEM_TABLE_ID, hdr.oem_table_id,
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sizeof(hdr.oem_table_id));
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ut_asserteq(U_BOOT_BUILD_DATE, hdr.oem_revision);
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ut_asserteq_mem(ASLC_ID, hdr.aslc_id, sizeof(hdr.aslc_id));
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ut_asserteq(0x44, hdr.aslc_revision);
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return 0;
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}
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DM_TEST(dm_test_acpi_fill_header, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Test ACPI write_tables() */
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static int dm_test_acpi_write_tables(struct unit_test_state *uts)
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{
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struct acpi_dmar *dmar;
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struct acpi_ctx ctx;
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void *buf;
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buf = malloc(BUF_SIZE);
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ut_assertnonnull(buf);
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ctx.current = buf;
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ut_assertok(acpi_write_dev_tables(&ctx));
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dmar = buf;
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/*
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* We should have two dmar tables, one for each "denx,u-boot-acpi-test"
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* device
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*/
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ut_asserteq_ptr(dmar + 2, ctx.current);
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ut_asserteq(DMAR_INTR_REMAP, dmar->flags);
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ut_asserteq(32 - 1, dmar->host_address_width);
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ut_asserteq(DMAR_INTR_REMAP, dmar[1].flags);
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ut_asserteq(32 - 1, dmar[1].host_address_width);
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return 0;
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}
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DM_TEST(dm_test_acpi_write_tables, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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