From: Mike Larkin <mlarkin@nested.page>
Subject: Re: show intel package thermal status capability on amd64 cpus
To: David Gwynne <david@gwynne.id.au>
Cc: tech@openbsd.org
Date: Sun, 13 Jul 2025 00:33:55 -0700

On Sun, Jul 13, 2025 at 03:59:54PM +1000, David Gwynne wrote:
> intel cpus may have a package temperature sensor as well as the core
> sensors.
>
> ok?
>

ok mlarkin

> Index: specialreg.h
> ===================================================================
> RCS file: /cvs/src/sys/arch/amd64/include/specialreg.h,v
> diff -u -p -r1.118 specialreg.h
> --- specialreg.h	26 Jun 2025 12:17:27 -0000	1.118
> +++ specialreg.h	13 Jul 2025 05:57:26 -0000
> @@ -286,8 +286,9 @@
>   */
>  #define	TPM_SENSOR	0x00000001	 /* Digital temp sensor */
>  #define	TPM_ARAT	0x00000004	 /* APIC Timer Always Running */
> +#define	TPM_PTS		0x00000040	 /* Intel Package Thermal Status */
>  #define TPM_EAX_BITS \
> -    ("\20" "\01SENSOR" "\03ARAT" )
> +    ("\20" "\01SENSOR" "\03ARAT" "\07PTS")
>  /* Thermal and Power Management (CPUID function 0x6) ECX bits */
>  #define	TPM_EFFFREQ	0x00000001	 /* APERF & MPERF MSR present */
>  #define TPM_ECX_BITS \
>