tests: Add acpi/acpigen-test test case
Signed-off-by: Jakub Czapiga <jacz@semihalf.com> Change-Id: Icc128212c1f72beb50caca671b4bada3507d3a1f Reviewed-on: https://review.coreboot.org/c/coreboot/+/50520 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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@ -59,8 +59,8 @@ stages:= decompressor bootblock romstage smm verstage
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stages+= ramstage rmodule postcar libagesa
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alltests:=
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subdirs:= tests/arch tests/commonlib tests/console tests/cpu tests/device
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subdirs+= tests/drivers tests/ec tests/lib tests/mainboard
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subdirs:= tests/arch tests/acpi tests/commonlib tests/console tests/cpu
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subdirs+= tests/device tests/drivers tests/ec tests/lib tests/mainboard
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subdirs+= tests/northbridge tests/security tests/soc tests/southbridge
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subdirs+= tests/superio tests/vendorcode
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@ -0,0 +1,7 @@
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# SPDX-License-Identifier: GPL-2.0-only
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tests-y += acpigen-test
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acpigen-test-srcs += tests/acpi/acpigen-test.c
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acpigen-test-srcs += src/acpi/acpigen.c
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acpigen-test-srcs += tests/stubs/console.c
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@ -0,0 +1,217 @@
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/* SPDX-License-Identifier: GPL-2.0-only */
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#include <stdlib.h>
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#include <types.h>
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#include <tests/test.h>
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#include <acpi/acpigen.h>
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#define ACPIGEN_TEST_BUFFER_SZ (16 * KiB)
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/* Returns AML package length. Works with normal and extended packages.
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This implementation is independent from acpigen.c implementation of package length. */
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static u32 decode_package_length(const char *ptr)
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{
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const u8 *aml = (u8 *)ptr;
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const u32 offset = (aml[0] == EXT_OP_PREFIX ? 2 : 1);
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u32 byte_zero_mask = 0x3F; /* Bits [0:5] */
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u32 byte_count = aml[offset] >> 6;
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u32 package_length = 0;
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while (byte_count) {
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package_length |= aml[offset + byte_count] << ((byte_count << 3) - 4);
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byte_zero_mask = 0x0F; /* Use bits [0:3] of byte 0 */
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byte_count--;
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}
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package_length |= (aml[offset] & byte_zero_mask);
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return package_length;
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}
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static u32 get_current_block_length(const char *base)
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{
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const u32 offset = (base[0] == EXT_OP_PREFIX ? 2 : 1);
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return ((uintptr_t)acpigen_get_current() - ((uintptr_t)base + offset));
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}
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static int setup_acpigen(void **state)
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{
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void *buffer = malloc(ACPIGEN_TEST_BUFFER_SZ);
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if (buffer == NULL)
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return -1;
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memset(buffer, 0, ACPIGEN_TEST_BUFFER_SZ);
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*state = buffer;
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return 0;
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}
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static int teardown_acpigen(void **state)
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{
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free(*state);
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return 0;
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}
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static void test_acpigen_single_if(void **state)
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{
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char *acpigen_buf = *state;
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u32 if_package_length = 0;
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u32 block_length = 0;
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acpigen_set_current(acpigen_buf);
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/* Create dummy AML */
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acpigen_write_if_lequal_op_int(LOCAL0_OP, 64);
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for (int i = 0; i < 20; ++i)
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acpigen_write_store_ops(ZERO_OP, LOCAL1_OP);
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/* Close if */
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acpigen_pop_len();
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if_package_length = decode_package_length(acpigen_buf);
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block_length = get_current_block_length(acpigen_buf);
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assert_int_equal(if_package_length, block_length);
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}
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static void create_nested_ifs_recursive(char *stack_start[], char *stack_end[], u32 i, u32 n)
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{
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if (i >= n)
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return;
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stack_start[i] = acpigen_get_current();
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acpigen_write_if_and(LOCAL0_OP, ZERO_OP);
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for (int k = 0; k < 3; ++k)
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acpigen_write_store_ops(ZERO_OP, LOCAL1_OP);
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create_nested_ifs_recursive(stack_start, stack_end, i + 1, n);
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acpigen_pop_len();
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stack_end[i] = acpigen_get_current();
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}
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static void test_acpigen_nested_ifs(void **state)
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{
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char *acpigen_buf = *state;
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const size_t nesting_level = 8;
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char *block_start[8] = {0};
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char *block_end[8] = {0};
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acpigen_set_current(acpigen_buf);
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create_nested_ifs_recursive(block_start, block_end, 0, nesting_level);
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for (int i = 0; i < nesting_level; ++i)
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assert_int_equal(decode_package_length(block_start[i]),
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block_end[i] - block_start[i] - 1);
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}
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static void test_acpigen_write_package(void **state)
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{
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char *acpigen_buf = *state;
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u32 package_length;
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u32 block_length;
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acpigen_set_current(acpigen_buf);
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acpigen_write_package(3);
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acpigen_write_return_singleton_buffer(0xA);
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acpigen_write_return_singleton_buffer(0x7);
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acpigen_write_return_singleton_buffer(0xF);
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acpigen_pop_len();
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package_length = decode_package_length(acpigen_buf);
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block_length = get_current_block_length(acpigen_buf);
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assert_int_equal(package_length, block_length);
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}
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static void test_acpigen_scope_with_contents(void **state)
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{
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char *acpigen_buf = *state;
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char *block_start[8] = {0};
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u32 block_counter = 0;
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u32 package_length;
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u32 block_length;
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acpigen_set_current(acpigen_buf);
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/* Scope("\_SB") { */
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block_start[block_counter++] = acpigen_get_current();
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acpigen_write_scope("\\_SB");
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/* Device("PCI0") { */
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block_start[block_counter++] = acpigen_get_current();
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acpigen_write_device("PCI0");
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/* Name(INT1, 0x1234) */
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acpigen_write_name_integer("INT1", 0x1234);
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/* Name (_HID, EisaId ("PNP0A08")) // PCI Express Bus */
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acpigen_write_name("_HID");
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acpigen_emit_eisaid("PNP0A08");
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/* Method(^BN00, 0, NotSerialized) { */
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block_start[block_counter++] = acpigen_get_current();
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acpigen_write_method("^BN00", 0);
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/* Return( 0x12 + ^PCI0.INT1 ) */
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acpigen_write_return_op(AND_OP);
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acpigen_write_byte(0x12);
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acpigen_emit_namestring("^PCI0.INT1");
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/* } */
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acpigen_pop_len();
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block_counter--;
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package_length = decode_package_length(block_start[block_counter]);
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block_length = get_current_block_length(block_start[block_counter]);
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assert_int_equal(package_length, block_length);
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/* Method (_BBN, 0, NotSerialized) { */
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block_start[block_counter++] = acpigen_get_current();
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acpigen_write_method("_BBN", 0);
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/* Return (BN00 ()) */
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acpigen_write_return_namestr("BN00");
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acpigen_emit_byte(0x0A);
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/* } */
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acpigen_pop_len();
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block_counter--;
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package_length = decode_package_length(block_start[block_counter]);
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block_length = get_current_block_length(block_start[block_counter]);
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assert_int_equal(package_length, block_length);
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/* } */
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acpigen_pop_len();
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block_counter--;
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package_length = decode_package_length(block_start[block_counter]);
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block_length = get_current_block_length(block_start[block_counter]);
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assert_int_equal(package_length, block_length);
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/* } */
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acpigen_pop_len();
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block_counter--;
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package_length = decode_package_length(block_start[block_counter]);
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block_length = get_current_block_length(block_start[block_counter]);
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assert_int_equal(package_length, block_length);
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}
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int main(void)
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{
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const struct CMUnitTest tests[] = {
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cmocka_unit_test_setup_teardown(test_acpigen_single_if,
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setup_acpigen, teardown_acpigen),
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cmocka_unit_test_setup_teardown(test_acpigen_nested_ifs,
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setup_acpigen, teardown_acpigen),
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cmocka_unit_test_setup_teardown(test_acpigen_write_package,
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setup_acpigen, teardown_acpigen),
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cmocka_unit_test_setup_teardown(test_acpigen_scope_with_contents,
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setup_acpigen, teardown_acpigen),
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};
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return cmocka_run_group_tests(tests, NULL, NULL);
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}
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