cmd: acpi: fix acpi list command
ACPI tables may comprise either RSDT, XSDT, or both. The current code fails
to check the presence of the RSDT table before accessing it. This leads to
an exception if the RSDT table is not provided.
The XSDT table takes precedence over the RSDT table.
The return values of list_rsdt() and list_rsdp() are always zero and not
checked. Remove the return values.
Addresses in the XSDT table are 64-bit. Adjust the output accordingly.
As the RSDT table has to be ignored if the XSDT command is present there is
no need to compare the tables in a display command. Anyway the
specification does not require that the sequence of addresses in the RSDT
and XSDT table are the same.
The FACS table header does not provide revision information. Correct the
description of dump_hdr().
Adjust the ACPI test to match the changed output format of the 'acpi list'
command.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/acpi.c b/cmd/acpi.c
index 7e397d1..8997041 100644
--- a/cmd/acpi.c
+++ b/cmd/acpi.c
@@ -17,7 +17,8 @@
/**
* dump_hdr() - Dump an ACPI header
*
- * If the header is for FACS then it shows the revision information as well
+ * Except for the Firmware ACPI Control Structure (FACS)
+ * additionally show the revision information.
*
* @hdr: ACPI header to dump
*/
@@ -25,7 +26,7 @@
{
bool has_hdr = memcmp(hdr->signature, "FACS", ACPI_NAME_LEN);
- printf("%.*s %08lx %5x", ACPI_NAME_LEN, hdr->signature,
+ printf("%.*s %16lx %5x", ACPI_NAME_LEN, hdr->signature,
(ulong)map_to_sysmem(hdr), hdr->length);
if (has_hdr) {
printf(" v%02d %.6s %.8s %x %.4s %x\n", hdr->revision,
@@ -43,7 +44,7 @@
hdr = acpi_find_table(sig);
if (!hdr)
return -ENOENT;
- printf("%.*s @ %08lx\n", ACPI_NAME_LEN, hdr->signature,
+ printf("%.*s @ %16lx\n", ACPI_NAME_LEN, hdr->signature,
(ulong)map_to_sysmem(hdr));
print_buffer(0, hdr, 1, hdr->length, 0);
@@ -58,47 +59,50 @@
dump_hdr(map_sysmem(fadt->firmware_ctrl, 0));
}
-static int list_rsdt(struct acpi_rsdt *rsdt, struct acpi_xsdt *xsdt)
+static void list_rsdt(struct acpi_rsdp *rsdp)
{
int len, i, count;
+ struct acpi_rsdt *rsdt;
+ struct acpi_xsdt *xsdt;
- dump_hdr(&rsdt->header);
- if (xsdt)
+ if (rsdp->rsdt_address) {
+ rsdt = map_sysmem(rsdp->rsdt_address, 0);
+ dump_hdr(&rsdt->header);
+ }
+ if (rsdp->xsdt_address) {
+ xsdt = map_sysmem(rsdp->xsdt_address, 0);
dump_hdr(&xsdt->header);
- len = rsdt->header.length - sizeof(rsdt->header);
- count = len / sizeof(u32);
+ len = xsdt->header.length - sizeof(xsdt->header);
+ count = len / sizeof(u64);
+ } else if (rsdp->rsdt_address) {
+ len = rsdt->header.length - sizeof(rsdt->header);
+ count = len / sizeof(u32);
+ } else {
+ return;
+ }
+
for (i = 0; i < count; i++) {
struct acpi_table_header *hdr;
+ u64 entry;
- if (!rsdt->entry[i])
+ if (rsdp->xsdt_address)
+ entry = xsdt->entry[i];
+ else
+ entry = rsdt->entry[i];
+ if (!entry)
break;
- hdr = map_sysmem(rsdt->entry[i], 0);
+ hdr = map_sysmem(entry, 0);
dump_hdr(hdr);
if (!memcmp(hdr->signature, "FACP", ACPI_NAME_LEN))
list_fadt((struct acpi_fadt *)hdr);
- if (xsdt) {
- if (xsdt->entry[i] != rsdt->entry[i]) {
- printf(" (xsdt mismatch %llx)\n",
- xsdt->entry[i]);
- }
- }
}
-
- return 0;
}
-static int list_rsdp(struct acpi_rsdp *rsdp)
+static void list_rsdp(struct acpi_rsdp *rsdp)
{
- struct acpi_rsdt *rsdt;
- struct acpi_xsdt *xsdt;
-
- printf("RSDP %08lx %5x v%02d %.6s\n", (ulong)map_to_sysmem(rsdp),
+ printf("RSDP %16lx %5x v%02d %.6s\n", (ulong)map_to_sysmem(rsdp),
rsdp->length, rsdp->revision, rsdp->oem_id);
- rsdt = map_sysmem(rsdp->rsdt_address, 0);
- xsdt = map_sysmem(rsdp->xsdt_address, 0);
- list_rsdt(rsdt, xsdt);
-
- return 0;
+ list_rsdt(rsdp);
}
static int do_acpi_list(struct cmd_tbl *cmdtp, int flag, int argc,
@@ -111,8 +115,8 @@
printf("No ACPI tables present\n");
return 0;
}
- printf("Name Base Size Detail\n");
- printf("---- -------- ----- ------\n");
+ printf("Name Base Size Detail\n"
+ "---- ---------------- ----- ----------------------------\n");
list_rsdp(rsdp);
return 0;
diff --git a/test/dm/acpi.c b/test/dm/acpi.c
index 7e661ee..fb07190 100644
--- a/test/dm/acpi.c
+++ b/test/dm/acpi.c
@@ -395,26 +395,26 @@
console_record_reset();
run_command("acpi list", 0);
- ut_assert_nextline("Name Base Size Detail");
- ut_assert_nextline("---- -------- ----- ------");
- ut_assert_nextline("RSDP %08lx %5zx v02 U-BOOT", addr,
+ ut_assert_nextline("Name Base Size Detail");
+ ut_assert_nextline("---- ---------------- ----- ----------------------------");
+ ut_assert_nextline("RSDP %16lx %5zx v02 U-BOOT", addr,
sizeof(struct acpi_rsdp));
addr = ALIGN(addr + sizeof(struct acpi_rsdp), 16);
- ut_assert_nextline("RSDT %08lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0",
+ ut_assert_nextline("RSDT %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0",
addr, sizeof(struct acpi_table_header) +
3 * sizeof(u32), OEM_REVISION);
addr = ALIGN(addr + sizeof(struct acpi_rsdt), 16);
- ut_assert_nextline("XSDT %08lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0",
+ ut_assert_nextline("XSDT %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0",
addr, sizeof(struct acpi_table_header) +
3 * sizeof(u64), OEM_REVISION);
addr = ALIGN(addr + sizeof(struct acpi_xsdt), 64);
- ut_assert_nextline("DMAR %08lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0",
+ ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0",
addr, sizeof(struct acpi_dmar), OEM_REVISION);
addr = ALIGN(addr + sizeof(struct acpi_dmar), 16);
- ut_assert_nextline("DMAR %08lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0",
+ ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0",
addr, sizeof(struct acpi_dmar), OEM_REVISION);
addr = ALIGN(addr + sizeof(struct acpi_dmar), 16);
- ut_assert_nextline("DMAR %08lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0",
+ ut_assert_nextline("DMAR %16lx %5zx v01 U-BOOT U-BOOTBL %x INTL 0",
addr, sizeof(struct acpi_dmar), OEM_REVISION);
ut_assert_console_end();
@@ -446,7 +446,7 @@
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_nextline("DMAR @ %16lx", addr);
ut_assert_nextlines_are_dump(0x30);
ut_assert_console_end();