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test: unit test for acpi_find_table()

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Provide a unit test for acpi_find_table()

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Heinrich Schuchardt 2023-11-18 22:57:27 +01:00 committed by Tom Rini
parent 5574d82fbc
commit 0c2f6c317f
1 changed files with 96 additions and 0 deletions
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96
test/dm/acpi.c
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@ -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);