ACPI: tables: Print MULTIPROC_WAKEUP when MADT is parsed

When MADT is parsed, print MULTIPROC_WAKEUP information:

  ACPI: MP Wakeup (version[1], mailbox[0x7fffd000], reset[0x7fffe068])

This debug information will be very helpful during bringup.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Kai Huang <kai.huang@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Tao Liu <ltao@redhat.com>
Link: https://lore.kernel.org/r/20240614095904.1345461-20-kirill.shutemov@linux.intel.com

diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index b976e5fc3fbcddc76a88210d86401ea53799f6ba..9e1b01c3507022117b848406d2ee2dfc1cb2e0d3 100644 (file)
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -198,6 +198,20 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header)
                }
                break;
 
+       case ACPI_MADT_TYPE_MULTIPROC_WAKEUP:
+               {
+                       struct acpi_madt_multiproc_wakeup *p =
+                               (struct acpi_madt_multiproc_wakeup *)header;
+                       u64 reset_vector = 0;
+
+                       if (p->version >= ACPI_MADT_MP_WAKEUP_VERSION_V1)
+                               reset_vector = p->reset_vector;
+
+                       pr_debug("MP Wakeup (version[%d], mailbox[%#llx], reset[%#llx])\n",
+                                p->version, p->mailbox_address, reset_vector);
+               }
+               break;
+
        case ACPI_MADT_TYPE_CORE_PIC:
                {
                        struct acpi_madt_core_pic *p = (struct acpi_madt_core_pic *)header;