Haswell CPU Feature
Sean Bruno
sbruno at ignoranthack.me
Thu Jan 8 16:51:24 UTC 2015
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
On 01/06/15 07:48, John Baldwin wrote:
> On 1/6/15 12:44 AM, Jia-Shiun Li wrote:
>> On Tue, Jan 6, 2015 at 1:23 PM, Neel Natu <neelnatu at gmail.com>
>> wrote:
>>
>>> Hi Sean,
>>>
>>> On Mon, Jan 5, 2015 at 6:34 PM, Sean Bruno
>>> <sbruno at ignoranthack.me> wrote:
>>>> I'm thinking something like this:
>>>>
>>>> Index: sys/x86/x86/identcpu.c
>>>> ===================================================================
>>>>
>>>>
- - --- sys/x86/x86/identcpu.c (revision 276729)
>>>> +++ sys/x86/x86/identcpu.c (working copy) @@ -781,7
>>>> +781,7 @@ "\011TM2" /* Thermal Monitor 2 */ "\012SSSE3"
>>>> /* SSSE3 */ "\013CNXT-ID" /* L1 context ID
>>> available */
>>>> - - "\014<b11>" +
>>>> "\014SDBG" /* IA32_DEBUG_INTERFACE
>>> debug*/
>>>> "\015FMA" /* Fused Multiply Add */ "\016CX16" /*
>>>> CMPXCHG16B
>>> Instruction */
>>>> "\017xTPR" /* Send Task Priority
>>> Messages*/
>>>>
>>>>
>>>
>>> Looks good.
>>>
>>
>> Maybe also this for completeness?
>>
>> # svnlite diff Index: sys/x86/include/specialreg.h
>> ===================================================================
>>
>>
- --- sys/x86/include/specialreg.h (revision 276737)
>> +++ sys/x86/include/specialreg.h (working copy) @@ -154,6
>> +154,7 @@ #define CPUID2_TM2 0x00000100 #define
>> CPUID2_SSSE3 0x00000200 #define CPUID2_CNXTID
>> 0x00000400 +#define CPUID2_SDBG 0x00000800 #define
>> CPUID2_FMA 0x00001000 #define CPUID2_CX16
>> 0x00002000 #define CPUID2_XTPR 0x00004000
>
> Yes, please include both. SDBG matches the label in the Intel SDM,
> so that's the preferred name.
>
Thanks folks, I've committed all of this to head after a quick
download and read of the SDM.
sean
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=
=KAfi
-----END PGP SIGNATURE-----
More information about the freebsd-current
mailing list