Provide a unit test for acpi_find_table()
Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com --- v2: new patch --- test/dm/acpi.c | 96 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 96 insertions(+)
diff --git a/test/dm/acpi.c b/test/dm/acpi.c index 5997bda649..58cc6c3474 100644 --- a/test/dm/acpi.c +++ b/test/dm/acpi.c @@ -651,3 +651,99 @@ static int dm_test_acpi_cmd_set(struct unit_test_state *uts) 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);