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u-boot/test/dm/acpi.c
Simon Glass 0b885bcfd9 acpi: Add an acpi command 
It is useful to dump ACPI tables in U-Boot to see what has been generated.
Add a command to handle this.

To allow the command to find the tables, add a position into the global
data.

Support subcommands to list and dump the tables.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
2020-04-30 17:16:12 +08:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Tests for ACPI table generation
*
* Copyright 2019 Google LLC
* Written by Simon Glass <sjg@chromium.org>
*/
#include <common.h>
#include <console.h>
#include <dm.h>
#include <malloc.h>
#include <mapmem.h>
#include <version.h>
#include <tables_csum.h>
#include <version.h>
#include <acpi/acpi_table.h>
#include <dm/acpi.h>
#include <dm/test.h>
#include <test/ut.h>
#define ACPI_TEST_DEV_NAME "ABCD"
#define BUF_SIZE 4096
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)
{
return acpi_copy_name(out_name, ACPI_TEST_DEV_NAME);
}
struct acpi_ops testacpi_ops = {
.get_name = testacpi_get_name,
.write_tables = testacpi_write_tables,
};
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,
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;
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);
return 0;
}
DM_TEST(dm_test_acpi_get_name, DM_TESTF_SCAN_PDATA | DM_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,
DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* Test acpi_create_dmar() */
static int dm_test_acpi_create_dmar(struct unit_test_state *uts)
{
struct acpi_dmar dmar;
ut_assertok(acpi_create_dmar(&dmar, DMAR_INTR_REMAP));
ut_asserteq(DMAR_INTR_REMAP, dmar.flags);
ut_asserteq(32 - 1, dmar.host_address_width);
return 0;
}
DM_TEST(dm_test_acpi_create_dmar, DM_TESTF_SCAN_PDATA | DM_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.aslc_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(U_BOOT_BUILD_DATE, hdr.oem_revision);
ut_asserteq_mem(ASLC_ID, hdr.aslc_id, sizeof(hdr.aslc_id));
ut_asserteq(0x44, hdr.aslc_revision);
return 0;
}
DM_TEST(dm_test_acpi_fill_header, DM_TESTF_SCAN_PDATA | DM_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;
void *buf;
buf = malloc(BUF_SIZE);
ut_assertnonnull(buf);
acpi_setup_base_tables(&ctx, buf);
dmar = ctx.current;
ut_assertok(acpi_write_dev_tables(&ctx));
/*
* We should have two dmar tables, one for each "denx,u-boot-acpi-test"
* device
*/
ut_asserteq_ptr(dmar + 2, ctx.current);
ut_asserteq(DMAR_INTR_REMAP, dmar->flags);
ut_asserteq(32 - 1, dmar->host_address_width);
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]);
ut_asserteq(map_to_sysmem(dmar), ctx.xsdt->entry[0]);
ut_asserteq(map_to_sysmem(dmar + 1), ctx.xsdt->entry[1]);
ut_asserteq(0, ctx.xsdt->entry[2]);
return 0;
}
DM_TEST(dm_test_acpi_write_tables, DM_TESTF_SCAN_PDATA | DM_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, 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);
ut_asserteq(map_to_sysmem(PTR_ALIGN(buf + 4, 16)), gd->arch.acpi_start);
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_asserteq_ptr(xsdt, ctx.xsdt);
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);
/* 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);
acpi_setup_base_tables(&ctx, buf);
ut_assertok(acpi_write_dev_tables(&ctx));
console_record_reset();
run_command("acpi list", 0);
addr = (ulong)map_to_sysmem(buf);
ut_assert_nextline("ACPI tables start at %lx", addr);
ut_assert_nextline("RSDP %08lx %06lx (v02 U-BOOT)", addr,
sizeof(struct acpi_rsdp));
addr = ALIGN(addr + sizeof(struct acpi_rsdp), 16);
ut_assert_nextline("RSDT %08lx %06lx (v01 U-BOOT U-BOOTBL %u INTL 0)",
addr, sizeof(struct acpi_table_header) +
2 * sizeof(u32), U_BOOT_BUILD_DATE);
addr = ALIGN(addr + sizeof(struct acpi_rsdt), 16);
ut_assert_nextline("XSDT %08lx %06lx (v01 U-BOOT U-BOOTBL %u INTL 0)",
addr, sizeof(struct acpi_table_header) +
2 * sizeof(u64), U_BOOT_BUILD_DATE);
addr = ALIGN(addr + sizeof(struct acpi_xsdt), 64);
ut_assert_nextline("DMAR %08lx %06lx (v01 U-BOOT U-BOOTBL %u INTL 0)",
addr, sizeof(struct acpi_dmar), U_BOOT_BUILD_DATE);
addr = ALIGN(addr + sizeof(struct acpi_dmar), 16);
ut_assert_nextline("DMAR %08lx %06lx (v01 U-BOOT U-BOOTBL %u INTL 0)",
addr, sizeof(struct acpi_dmar), U_BOOT_BUILD_DATE);
ut_assert_console_end();
return 0;
}
DM_TEST(dm_test_acpi_cmd_list, DM_TESTF_SCAN_PDATA | DM_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);
acpi_setup_base_tables(&ctx, buf);
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(map_to_sysmem(ctx.xsdt) + sizeof(struct acpi_xsdt), 64);
ut_assert_nextline("DMAR @ %08lx", addr);
ut_assert_nextlines_are_dump(0x30);
ut_assert_console_end();
return 0;
}
DM_TEST(dm_test_acpi_cmd_dump, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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