lkml.org 
[lkml]   [2005]   [Jan]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    SubjectRE: 256 apic id for amd64
    Date
    Then sepertate that into init_amd and init_intel.

    YH

    -----Original Message-----
    From: James Cleverdon [mailto:jamesclv@us.ibm.com]
    Sent: Friday, January 07, 2005 4:13 PM
    To: YhLu
    Cc: Andi Kleen; Matt Domsch; linux-kernel@vger.kernel.org;
    discuss@x86-64.org; suresh.b.siddha@intel.com
    Subject: Re: 256 apic id for amd64

    Clustered APIC systems need the phys_proc_id to come from the APIC ID
    register. Intel prefers that non-clustered systems get their
    phys_proc_id from the cpuid opcode.

    So, using c->x86_apicid is unlikely to satisfy both parties.


    On Friday 07 January 2005 04:04 pm, YhLu wrote:
    > arch/x86_64/kernel/setup.c
    >
    > static void __init detect_ht(struct cpuinfo_x86 *c)
    >
    > phys_proc_id[cpu] = phys_pkg_id(index_msb);
    >
    > --->
    > Phy_proc_id[cpu] = cpu_to_node[cpu];
    > Or
    > // that is initial apicid
    > phys_proc_id[cpu] = c->x86_apicid >>
    > hweight32(c->x86_num_cores - 1);
    >
    > YH
    >
    > -----Original Message-----
    > From: Andi Kleen [mailto:ak@muc.de]
    > Sent: Friday, January 07, 2005 2:18 PM
    > To: YhLu
    > Cc: Matt Domsch; linux-kernel@vger.kernel.org; discuss@x86-64.org;
    > jamesclv@us.ibm.com; suresh.b.siddha@intel.com
    > Subject: Re: 256 apic id for amd64
    >
    > On Fri, Jan 07, 2005 at 01:44:19PM -0800, YhLu wrote:
    > > Can you consider to use c->x86_apicid to get phy_proc_id, that is
    > > initial apicid.?
    >
    > Where?
    >
    > -Andi

    --
    James Cleverdon
    IBM LTC (xSeries Linux Solutions)
    {jamesclv(Unix, preferred), cleverdj(Notes)} at us dot ibm dot comm
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 14:09    [W:0.022 / U:32.696 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site