// SPDX-License-Identifier: GPL-2.0+ /* * Tests for ACPI table generation * * Copyright 2019 Google LLC * Written by Simon Glass */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "acpi.h" #define BUF_SIZE 4096 #define OEM_REVISION ((((version_num / 1000) % 10) << 28) | \ (((version_num / 100) % 10) << 24) | \ (((version_num / 10) % 10) << 20) | \ ((version_num % 10) << 16) | \ (((version_num_patch / 10) % 10) << 12) | \ ((version_num_patch % 10) << 8) | \ 0x01) /** * struct testacpi_plat - Platform data for the test ACPI device * * @no_name: true to emit an empty ACPI name from testacpi_get_name() * @return_error: true to return an error instead of a name */ struct testacpi_plat { bool return_error; bool no_name; }; /** * setup_ctx_and_base_tables() - Set up context along with RSDP, RSDT and XSDT * * Set up the context with the given start position. Some basic tables are * always needed, so set them up as well. * * @ctx: Context to set up */ static int setup_ctx_and_base_tables(struct unit_test_state *uts, struct acpi_ctx *ctx, ulong start) { struct acpi_writer *entry = ACPI_WRITER_GET(0base); acpi_setup_ctx(ctx, start); ctx->tab_start = ctx->current; ut_assertok(acpi_write_one(ctx, entry)); return 0; } static int testacpi_write_tables(const struct udevice *dev, struct acpi_ctx *ctx) { struct acpi_dmar *dmar; int ret; dmar = (struct acpi_dmar *)ctx->current; acpi_create_dmar(dmar, DMAR_INTR_REMAP); ctx->current += sizeof(struct acpi_dmar); ret = acpi_add_table(ctx, dmar); if (ret) return log_msg_ret("add", ret); return 0; } static int testacpi_get_name(const struct udevice *dev, char *out_name) { struct testacpi_plat *plat = dev_get_plat(dev); if (plat->return_error) return -EINVAL; if (plat->no_name) { *out_name = '\0'; return 0; } if (device_get_uclass_id(dev->parent) == UCLASS_TEST_ACPI) return acpi_copy_name(out_name, ACPI_TEST_CHILD_NAME); else return acpi_copy_name(out_name, ACPI_TEST_DEV_NAME); } static int testacpi_fill_ssdt(const struct udevice *dev, struct acpi_ctx *ctx) { const char *data; data = dev_read_string(dev, "acpi-ssdt-test-data"); if (data) { while (*data) acpigen_emit_byte(ctx, *data++); } return 0; } static int testacpi_inject_dsdt(const struct udevice *dev, struct acpi_ctx *ctx) { const char *data; data = dev_read_string(dev, "acpi-dsdt-test-data"); if (data) { while (*data) acpigen_emit_byte(ctx, *data++); } return 0; } struct acpi_ops testacpi_ops = { .get_name = testacpi_get_name, .write_tables = testacpi_write_tables, .fill_ssdt = testacpi_fill_ssdt, .inject_dsdt = testacpi_inject_dsdt, }; static const struct udevice_id testacpi_ids[] = { { .compatible = "denx,u-boot-acpi-test" }, { } }; U_BOOT_DRIVER(testacpi_drv) = { .name = "testacpi_drv", .of_match = testacpi_ids, .id = UCLASS_TEST_ACPI, .bind = dm_scan_fdt_dev, .plat_auto = sizeof(struct testacpi_plat), ACPI_OPS_PTR(&testacpi_ops) }; UCLASS_DRIVER(testacpi) = { .name = "testacpi", .id = UCLASS_TEST_ACPI, }; /* Test ACPI get_name() */ static int dm_test_acpi_get_name(struct unit_test_state *uts) { char name[ACPI_NAME_MAX]; struct udevice *dev, *dev2, *i2c, *spi, *timer, *sound; struct udevice *pci, *root; /* Test getting the name from the driver */ ut_assertok(uclass_first_device_err(UCLASS_TEST_ACPI, &dev)); ut_assertok(acpi_get_name(dev, name)); ut_asserteq_str(ACPI_TEST_DEV_NAME, name); /* Test getting the name from the device tree */ ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "a-test", &dev2)); ut_assertok(acpi_get_name(dev2, name)); ut_asserteq_str("GHIJ", name); /* Test getting the name from acpi_device_get_name() */ ut_assertok(uclass_first_device_err(UCLASS_I2C, &i2c)); ut_assertok(acpi_get_name(i2c, name)); ut_asserteq_str("I2C0", name); ut_assertok(uclass_first_device_err(UCLASS_SPI, &spi)); ut_assertok(acpi_get_name(spi, name)); ut_asserteq_str("SPI0", name); /* ACPI doesn't know about the timer */ ut_assertok(uclass_first_device_err(UCLASS_TIMER, &timer)); ut_asserteq(-ENOENT, acpi_get_name(timer, name)); /* May as well test the rest of the cases */ ut_assertok(uclass_first_device_err(UCLASS_SOUND, &sound)); ut_assertok(acpi_get_name(sound, name)); ut_asserteq_str("HDAS", name); ut_assertok(uclass_first_device_err(UCLASS_PCI, &pci)); ut_assertok(acpi_get_name(pci, name)); ut_asserteq_str("PCI0", name); ut_assertok(uclass_first_device_err(UCLASS_ROOT, &root)); ut_assertok(acpi_get_name(root, name)); ut_asserteq_str("\\_SB", name); /* Note that we don't have tests for acpi_name_from_id() */ return 0; } DM_TEST(dm_test_acpi_get_name, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); /* Test acpi_get_table_revision() */ static int dm_test_acpi_get_table_revision(struct unit_test_state *uts) { ut_asserteq(1, acpi_get_table_revision(ACPITAB_MCFG)); ut_asserteq(2, acpi_get_table_revision(ACPITAB_RSDP)); ut_asserteq(4, acpi_get_table_revision(ACPITAB_TPM2)); ut_asserteq(-EINVAL, acpi_get_table_revision(ACPITAB_COUNT)); return 0; } DM_TEST(dm_test_acpi_get_table_revision, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); /* Test acpi_create_dmar() */ static int dm_test_acpi_create_dmar(struct unit_test_state *uts) { struct acpi_dmar dmar; struct udevice *cpu; ut_assertok(uclass_first_device_err(UCLASS_CPU, &cpu)); ut_assertnonnull(cpu); ut_assertok(acpi_create_dmar(&dmar, DMAR_INTR_REMAP)); ut_asserteq(DMAR_INTR_REMAP, dmar.flags); ut_asserteq((IS_ENABLED(CONFIG_PHYS_64BIT) ? 64 : 32) - 1, dmar.host_address_width); return 0; } DM_TEST(dm_test_acpi_create_dmar, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); /* Test acpi_fill_header() */ static int dm_test_acpi_fill_header(struct unit_test_state *uts) { struct acpi_table_header hdr; /* Make sure these 5 fields are not changed */ hdr.length = 0x11; hdr.revision = 0x22; hdr.checksum = 0x33; hdr.creator_revision = 0x44; acpi_fill_header(&hdr, "ABCD"); ut_asserteq_mem("ABCD", hdr.signature, sizeof(hdr.signature)); ut_asserteq(0x11, hdr.length); ut_asserteq(0x22, hdr.revision); ut_asserteq(0x33, hdr.checksum); ut_asserteq_mem(OEM_ID, hdr.oem_id, sizeof(hdr.oem_id)); ut_asserteq_mem(OEM_TABLE_ID, hdr.oem_table_id, sizeof(hdr.oem_table_id)); ut_asserteq(OEM_REVISION, hdr.oem_revision); ut_asserteq_mem(ASLC_ID, hdr.creator_id, sizeof(hdr.creator_id)); ut_asserteq(0x44, hdr.creator_revision); return 0; } DM_TEST(dm_test_acpi_fill_header, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); /* Test ACPI write_tables() */ static int dm_test_acpi_write_tables(struct unit_test_state *uts) { struct acpi_dmar *dmar; struct acpi_ctx ctx; ulong addr; void *buf; int i; buf = malloc(BUF_SIZE); ut_assertnonnull(buf); addr = map_to_sysmem(buf); ut_assertok(setup_ctx_and_base_tables(uts, &ctx, addr)); dmar = ctx.current; ut_assertok(acpi_write_dev_tables(&ctx)); /* * We should have three dmar tables, one for each * "denx,u-boot-acpi-test" device */ ut_asserteq_ptr(dmar + 3, ctx.current); ut_asserteq(DMAR_INTR_REMAP, dmar->flags); ut_asserteq((IS_ENABLED(CONFIG_PHYS_64BIT) ? 64 : 32) - 1, dmar->host_address_width); ut_asserteq(DMAR_INTR_REMAP, dmar[1].flags); ut_asserteq((IS_ENABLED(CONFIG_PHYS_64BIT) ? 64 : 32) - 1, dmar[1].host_address_width); ut_asserteq(DMAR_INTR_REMAP, dmar[2].flags); ut_asserteq((IS_ENABLED(CONFIG_PHYS_64BIT) ? 64 : 32) - 1, dmar[2].host_address_width); /* Check that the pointers were added correctly */ for (i = 0; i < 3; i++) { ut_asserteq(nomap_to_sysmem(dmar + i), ctx.rsdt->entry[i]); ut_asserteq(nomap_to_sysmem(dmar + i), ctx.xsdt->entry[i]); } ut_asserteq(0, ctx.rsdt->entry[3]); ut_asserteq(0, ctx.xsdt->entry[3]); return 0; } DM_TEST(dm_test_acpi_write_tables, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); /* Test basic ACPI functions */ static int dm_test_acpi_basic(struct unit_test_state *uts) { struct acpi_ctx ctx; /* Check align works */ ctx.current = (void *)5; acpi_align(&ctx); ut_asserteq_ptr((void *)16, ctx.current); /* Check that align does nothing if already aligned */ acpi_align(&ctx); ut_asserteq_ptr((void *)16, ctx.current); acpi_align64(&ctx); ut_asserteq_ptr((void *)64, ctx.current); acpi_align64(&ctx); ut_asserteq_ptr((void *)64, ctx.current); /* Check incrementing */ acpi_inc(&ctx, 3); ut_asserteq_ptr((void *)67, ctx.current); acpi_inc_align(&ctx, 3); ut_asserteq_ptr((void *)80, ctx.current); return 0; } DM_TEST(dm_test_acpi_basic, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); /* Test setup_ctx_and_base_tables */ static int dm_test_acpi_ctx_and_base_tables(struct unit_test_state *uts) { struct acpi_rsdp *rsdp; struct acpi_rsdt *rsdt; struct acpi_xsdt *xsdt; struct acpi_ctx ctx; void *buf, *end; ulong addr; /* * Use an unaligned address deliberately, by allocating an aligned * address and then adding 4 to it */ buf = memalign(64, BUF_SIZE); ut_assertnonnull(buf); addr = map_to_sysmem(buf); ut_assertok(setup_ctx_and_base_tables(uts, &ctx, addr + 4)); ut_asserteq(map_to_sysmem(PTR_ALIGN(buf + 4, 16)), gd_acpi_start()); rsdp = buf + 16; ut_asserteq_ptr(rsdp, ctx.rsdp); ut_asserteq_mem(RSDP_SIG, rsdp->signature, sizeof(rsdp->signature)); ut_asserteq(sizeof(*rsdp), rsdp->length); ut_assertok(table_compute_checksum(rsdp, 20)); ut_assertok(table_compute_checksum(rsdp, sizeof(*rsdp))); rsdt = PTR_ALIGN((void *)rsdp + sizeof(*rsdp), 16); ut_asserteq_ptr(rsdt, ctx.rsdt); ut_asserteq_mem("RSDT", rsdt->header.signature, ACPI_NAME_LEN); ut_asserteq(sizeof(*rsdt), rsdt->header.length); ut_assertok(table_compute_checksum(rsdt, sizeof(*rsdt))); xsdt = PTR_ALIGN((void *)rsdt + sizeof(*rsdt), 16); ut_asserteq_ptr(xsdt, ctx.xsdt); ut_asserteq_mem("XSDT", xsdt->header.signature, ACPI_NAME_LEN); ut_asserteq(sizeof(*xsdt), xsdt->header.length); ut_assertok(table_compute_checksum(xsdt, sizeof(*xsdt))); end = PTR_ALIGN((void *)xsdt + sizeof(*xsdt), 64); ut_asserteq_ptr(end, ctx.current); ut_asserteq(nomap_to_sysmem(rsdt), rsdp->rsdt_address); ut_asserteq(nomap_to_sysmem(xsdt), rsdp->xsdt_address); return 0; } DM_TEST(dm_test_acpi_ctx_and_base_tables, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); /* Test 'acpi list' command */ static int dm_test_acpi_cmd_list(struct unit_test_state *uts) { struct acpi_ctx ctx; ulong addr; void *buf; buf = memalign(16, BUF_SIZE); ut_assertnonnull(buf); addr = map_to_sysmem(buf); ut_assertok(setup_ctx_and_base_tables(uts, &ctx, addr)); ut_assertok(acpi_write_dev_tables(&ctx)); console_record_reset(); run_command("acpi list", 0); ut_assert_nextline("Name Base Size Detail"); ut_assert_nextline("---- ---------------- ----- ----------------------------"); ut_assert_nextline("RSDP %16lx %5zx v02 U-BOOT", addr, sizeof(struct acpi_rsdp)); addr = ALIGN(addr + sizeof(struct acpi_rsdp), 16); ut_assert_nextline("RSDT %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0", addr, sizeof(struct acpi_table_header) + 3 * sizeof(u32), OEM_REVISION); addr = ALIGN(addr + sizeof(struct acpi_rsdt), 16); ut_assert_nextline("XSDT %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0", addr, sizeof(struct acpi_table_header) + 3 * sizeof(u64), OEM_REVISION); addr = ALIGN(addr + sizeof(struct acpi_xsdt), 64); ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0", addr, sizeof(struct acpi_dmar), OEM_REVISION); addr = ALIGN(addr + sizeof(struct acpi_dmar), 16); ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0", addr, sizeof(struct acpi_dmar), OEM_REVISION); addr = ALIGN(addr + sizeof(struct acpi_dmar), 16); ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0", addr, sizeof(struct acpi_dmar), OEM_REVISION); ut_assert_console_end(); return 0; } DM_TEST(dm_test_acpi_cmd_list, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); /* Test 'acpi dump' command */ static int dm_test_acpi_cmd_dump(struct unit_test_state *uts) { struct acpi_ctx ctx; ulong addr; void *buf; buf = memalign(16, BUF_SIZE); ut_assertnonnull(buf); addr = map_to_sysmem(buf); ut_assertok(setup_ctx_and_base_tables(uts, &ctx, addr)); ut_assertok(acpi_write_dev_tables(&ctx)); /* First search for a non-existent table */ console_record_reset(); run_command("acpi dump rdst", 0); ut_assert_nextline("Table 'RDST' not found"); ut_assert_console_end(); /* Now a real table */ console_record_reset(); run_command("acpi dump dmar", 0); addr = ALIGN(nomap_to_sysmem(ctx.xsdt) + sizeof(struct acpi_xsdt), 64); ut_assert_nextline("DMAR @ %16lx", addr); ut_assert_nextlines_are_dump(0x30); ut_assert_console_end(); return 0; } DM_TEST(dm_test_acpi_cmd_dump, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); /* Test acpi_device_path() */ static int dm_test_acpi_device_path(struct unit_test_state *uts) { struct testacpi_plat *plat; char buf[ACPI_PATH_MAX]; struct udevice *dev, *child; ut_assertok(uclass_first_device_err(UCLASS_TEST_ACPI, &dev)); ut_assertok(acpi_device_path(dev, buf, sizeof(buf))); ut_asserteq_str("\\_SB." ACPI_TEST_DEV_NAME, buf); /* Test running out of space */ buf[5] = '\0'; ut_asserteq(-ENOSPC, acpi_device_path(dev, buf, 5)); ut_asserteq('\0', buf[5]); /* Test a three-component name */ ut_assertok(device_first_child_err(dev, &child)); ut_assertok(acpi_device_path(child, buf, sizeof(buf))); ut_asserteq_str("\\_SB." ACPI_TEST_DEV_NAME "." ACPI_TEST_CHILD_NAME, buf); /* Test handling of a device which doesn't produce a name */ plat = dev_get_plat(dev); plat->no_name = true; ut_assertok(acpi_device_path(child, buf, sizeof(buf))); ut_asserteq_str("\\_SB." ACPI_TEST_CHILD_NAME, buf); /* Test handling of a device which returns an error */ plat = dev_get_plat(dev); plat->return_error = true; ut_asserteq(-EINVAL, acpi_device_path(child, buf, sizeof(buf))); return 0; } DM_TEST(dm_test_acpi_device_path, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); /* Test acpi_device_status() */ static int dm_test_acpi_device_status(struct unit_test_state *uts) { struct udevice *dev; ut_assertok(uclass_first_device_err(UCLASS_TEST_ACPI, &dev)); ut_asserteq(ACPI_DSTATUS_ALL_ON, acpi_device_status(dev)); return 0; } DM_TEST(dm_test_acpi_device_status, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); /* Test acpi_fill_ssdt() */ static int dm_test_acpi_fill_ssdt(struct unit_test_state *uts) { struct acpi_ctx ctx; u8 *buf; buf = malloc(BUF_SIZE); ut_assertnonnull(buf); acpi_reset_items(); ctx.current = buf; buf[4] = 'z'; /* sentinel */ ut_assertok(acpi_fill_ssdt(&ctx)); /* * These values come from acpi-test2's acpi-ssdt-test-data property. * This device comes first because of u-boot,acpi-ssdt-order */ ut_asserteq('c', buf[0]); ut_asserteq('d', buf[1]); /* These values come from acpi-test's acpi-ssdt-test-data property */ ut_asserteq('a', buf[2]); ut_asserteq('b', buf[3]); ut_asserteq('z', buf[4]); return 0; } DM_TEST(dm_test_acpi_fill_ssdt, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); /* Test acpi_inject_dsdt() */ static int dm_test_acpi_inject_dsdt(struct unit_test_state *uts) { struct acpi_ctx ctx; u8 *buf; buf = malloc(BUF_SIZE); ut_assertnonnull(buf); acpi_reset_items(); ctx.current = buf; buf[4] = 'z'; /* sentinel */ ut_assertok(acpi_inject_dsdt(&ctx)); /* * These values come from acpi-test's acpi-dsdt-test-data property. * There is no u-boot,acpi-dsdt-order so device-tree order is used. */ ut_asserteq('h', buf[0]); ut_asserteq('i', buf[1]); /* These values come from acpi-test's acpi-dsdt-test-data property */ ut_asserteq('j', buf[2]); ut_asserteq('k', buf[3]); ut_asserteq('z', buf[4]); return 0; } DM_TEST(dm_test_acpi_inject_dsdt, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); /* Test 'acpi items' command */ static int dm_test_acpi_cmd_items(struct unit_test_state *uts) { struct acpi_ctx ctx; ulong addr; void *buf; buf = malloc(BUF_SIZE); ut_assertnonnull(buf); addr = map_to_sysmem(buf); acpi_reset_items(); ctx.current = buf; ut_assertok(acpi_fill_ssdt(&ctx)); console_record_reset(); run_command("acpi items", 0); ut_assert_nextline("Seq Type Base Size Device/Writer"); ut_assert_nextline("--- ----- -------- ---- -------------"); ut_assert_nextline(" 0 ssdt %8lx 2 acpi-test", addr); ut_assert_nextline(" 1 ssdt %8lx 2 acpi-test2", addr + 2); ut_assert_console_end(); acpi_reset_items(); ctx.current = buf; ut_assertok(acpi_inject_dsdt(&ctx)); console_record_reset(); run_command("acpi items", 0); ut_assert_nextlinen("Seq"); ut_assert_nextlinen("---"); ut_assert_nextline(" 0 dsdt %8lx 2 acpi-test", addr); ut_assert_nextline(" 1 dsdt %8lx 2 acpi-test2", addr + 2); ut_assert_console_end(); console_record_reset(); run_command("acpi items -d", 0); ut_assert_nextlinen("Seq"); ut_assert_nextlinen("---"); ut_assert_nextline(" 0 dsdt %8lx 2 acpi-test", addr); ut_assert_nextlines_are_dump(2); ut_assert_nextline("%s", ""); ut_assert_nextline(" 1 dsdt %8lx 2 acpi-test2", addr + 2); ut_assert_nextlines_are_dump(2); ut_assert_nextline("%s", ""); ut_assert_console_end(); return 0; } DM_TEST(dm_test_acpi_cmd_items, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); /* Test 'acpi set' command */ static int dm_test_acpi_cmd_set(struct unit_test_state *uts) { struct acpi_ctx ctx; ulong addr; void *buf; gd_set_acpi_start(0); console_record_reset(); ut_asserteq(0, gd_acpi_start()); ut_assertok(run_command("acpi set", 0)); ut_assert_nextline("ACPI pointer: 0"); buf = memalign(16, BUF_SIZE); ut_assertnonnull(buf); addr = map_to_sysmem(buf); ut_assertok(setup_ctx_and_base_tables(uts, &ctx, addr)); ut_assertok(acpi_write_dev_tables(&ctx)); ut_assertok(run_command("acpi set", 0)); ut_assert_nextline("ACPI pointer: %lx", addr); ut_assertok(run_command("acpi set 0", 0)); ut_assert_nextline("Setting ACPI pointer to 0"); ut_asserteq(0, gd_acpi_start()); ut_assertok(run_commandf("acpi set %lx", addr)); ut_assert_nextline("Setting ACPI pointer to %lx", addr); ut_asserteq(addr, gd_acpi_start()); ut_assert_console_end(); return 0; } DM_TEST(dm_test_acpi_cmd_set, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); /** * dm_test_write_test_table() - create test ACPI table * * Create an ACPI table TSTn, where n is given by @index. * * @ctx: ACPI table writing context * @index: table index * Return: generated table */ static struct acpi_table_header *dm_test_write_test_table(struct acpi_ctx *ctx, int index) { struct acpi_table_header *tbl = ctx->current; char signature[5]; snprintf(signature, sizeof(signature), "TST%1d", index); memset(tbl, 0, sizeof(*tbl)); acpi_fill_header(tbl, signature); acpi_inc(ctx, sizeof(struct acpi_table_header)); tbl->length = (u8 *)ctx->current - (u8 *)tbl; tbl->checksum = table_compute_checksum(tbl, tbl->length); acpi_add_table(ctx, tbl); return tbl; } /* Test acpi_find_table() */ static int dm_test_acpi_find_table(struct unit_test_state *uts) { struct acpi_ctx ctx; ulong acpi_start, addr; void *buf; struct acpi_table_header *table, *table1, *table2, *table3; struct acpi_rsdp *rsdp; ulong rsdt; ulong xsdt; /* Keep reference to original ACPI tables */ acpi_start = gd_acpi_start(); /* Setup new ACPI tables */ buf = memalign(16, BUF_SIZE); ut_assertnonnull(buf); addr = map_to_sysmem(buf); ut_assertok(setup_ctx_and_base_tables(uts, &ctx, addr)); table3 = dm_test_write_test_table(&ctx, 3); table1 = dm_test_write_test_table(&ctx, 1); table2 = dm_test_write_test_table(&ctx, 2); /* Retrieve RSDP, RSDT, XSDT */ rsdp = map_sysmem(gd_acpi_start(), 0); ut_assertnonnull(rsdp); rsdt = rsdp->rsdt_address; ut_assert(rsdt); xsdt = rsdp->xsdt_address; ut_assert(xsdt); /* Find with both RSDT and XSDT */ table = acpi_find_table("TST1"); ut_asserteq_ptr(table1, table); ut_asserteq_strn("TST1", table->signature); table = acpi_find_table("TST2"); ut_asserteq_ptr(table2, table); ut_asserteq_strn("TST2", table->signature); table = acpi_find_table("TST3"); ut_asserteq_ptr(table3, table); ut_asserteq_strn("TST3", table->signature); /* Find with XSDT only */ rsdp->rsdt_address = 0; table = acpi_find_table("TST1"); ut_asserteq_ptr(table1, table); table = acpi_find_table("TST2"); ut_asserteq_ptr(table2, table); table = acpi_find_table("TST3"); ut_asserteq_ptr(table3, table); rsdp->rsdt_address = rsdt; /* Find with RSDT only */ rsdp->xsdt_address = 0; table = acpi_find_table("TST1"); ut_asserteq_ptr(table1, table); table = acpi_find_table("TST2"); ut_asserteq_ptr(table2, table); table = acpi_find_table("TST3"); ut_asserteq_ptr(table3, table); rsdp->xsdt_address = xsdt; /* Restore previous ACPI tables */ gd_set_acpi_start(acpi_start); free(buf); return 0; } DM_TEST(dm_test_acpi_find_table, 0); /* Test offsets in RSDT, XSDT */ static int dm_test_acpi_offsets(struct unit_test_state *uts) { ut_asserteq(36, offsetof(struct acpi_rsdt, entry)); ut_asserteq(36, offsetof(struct acpi_xsdt, entry)); return 0; } DM_TEST(dm_test_acpi_offsets, 0);