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acpi: Put table-setup code in its own function

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We always write three basic tables to ACPI at the start. Move this into
its own function, along with acpi_fill_header(), so we can write a test
for this code.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2020-04-26 09:19:51 -06:00
committed by Bin Meng
parent 29b351122e
commit 7e586f6907
4 changed files with 147 additions and 86 deletions
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64
test/dm/acpi.c
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@@ -8,7 +8,9 @@
#include <common.h>
#include <dm.h>
#include <malloc.h>
#include <mapmem.h>
#include <tables_csum.h>
#include <version.h>
#include <acpi/acpi_table.h>
#include <dm/acpi.h>
@@ -132,23 +134,14 @@ DM_TEST(dm_test_acpi_fill_header, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
static int dm_test_acpi_write_tables(struct unit_test_state *uts)
{
struct acpi_dmar *dmar;
struct acpi_xsdt *xsdt;
struct acpi_ctx ctx;
void *buf;
buf = malloc(BUF_SIZE);
ut_assertnonnull(buf);
ctx.current = buf;
ctx.rsdp = ctx.current;
acpi_inc_align(&ctx, sizeof(struct acpi_rsdp));
ctx.rsdt = ctx.current;
acpi_inc_align(&ctx, sizeof(struct acpi_rsdt));
xsdt = ctx.current;
acpi_inc_align(&ctx, sizeof(struct acpi_xsdt));
ctx.rsdp->xsdt_address = map_to_sysmem(xsdt);
acpi_setup_base_tables(&ctx, buf);
dmar = ctx.current;
ut_assertok(acpi_write_dev_tables(&ctx));
/*
@@ -162,6 +155,11 @@ static int dm_test_acpi_write_tables(struct unit_test_state *uts)
ut_asserteq(DMAR_INTR_REMAP, dmar[1].flags);
ut_asserteq(32 - 1, dmar[1].host_address_width);
/* Check that the pointers were added correctly */
ut_asserteq(map_to_sysmem(dmar), ctx.rsdt->entry[0]);
ut_asserteq(map_to_sysmem(dmar + 1), ctx.rsdt->entry[1]);
ut_asserteq(0, ctx.rsdt->entry[2]);
return 0;
}
DM_TEST(dm_test_acpi_write_tables, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
@@ -193,3 +191,49 @@ static int dm_test_acpi_basic(struct unit_test_state *uts)
return 0;
}
DM_TEST(dm_test_acpi_basic, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* Test acpi_setup_base_tables */
static int dm_test_acpi_setup_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;
/*
* Use an unaligned address deliberately, by allocating an aligned
* address and then adding 4 to it
*/
buf = memalign(64, BUF_SIZE);
ut_assertnonnull(buf);
acpi_setup_base_tables(&ctx, buf + 4);
rsdp = buf + 16;
ut_asserteq_ptr(rsdp, ctx.rsdp);
ut_assertok(memcmp(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_assertok(memcmp("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_assertok(memcmp("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(map_to_sysmem(rsdt), rsdp->rsdt_address);
ut_asserteq(map_to_sysmem(xsdt), rsdp->xsdt_address);
return 0;
}
DM_TEST(dm_test_acpi_setup_base_tables,
DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);