The following commit has been merged into the x86/cc branch of tip:

Commit-ID:     16df35946120fca2346c415fae429c821391eef8
Gitweb:        https://git.kernel.org/tip/16df35946120fca2346c415fae429c821391eef8
Author:        Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
AuthorDate:    Fri, 14 Jun 2024 12:59:04 +03:00
Committer:     Borislav Petkov (AMD) <bp@alien8.de>
CommitterDate: Mon, 17 Jun 2024 17:46:28 +02:00

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
---
 drivers/acpi/tables.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index b976e5f..9e1b01c 100644
--- 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;