[PATCHv9 17/17] ACPI: tables: Print MULTIPROC_WAKEUP when MADT is parsed

[Kuppuswamy Sathyanarayanan]

On 3/25/24 3:39 AM, Kirill A. Shutemov wrote:
> 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 bring up.
>
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov at linux.intel.com>
> Reviewed-by: Baoquan He <bhe at redhat.com>
> ---

Looks good to me.

Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy at 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 b976e5fc3fbc..9e1b01c35070 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;

-- 
Sathyanarayanan Kuppuswamy
Linux Kernel Developer