• Fenghua Yu's avatar
    x86/intel_rdt: Add Haswell feature discovery · 113c6097
    Fenghua Yu authored
    Some Haswell generation CPUs support RDT, but they don't enumerate this via
    CPUID.  Use rdmsr_safe() and wrmsr_safe() to probe the MSRs on cpu model 63
    (INTEL_FAM6_HASWELL_X)
    
    Move the relevant defines into a common header file which is shared between
    RDT/CQM and RDT/Allocation to avoid duplication.
    Signed-off-by: default avatarFenghua Yu <fenghua.yu@intel.com>
    Cc: "Ravi V Shankar" <ravi.v.shankar@intel.com>
    Cc: "Tony Luck" <tony.luck@intel.com>
    Cc: "David Carrillo-Cisneros" <davidcc@google.com>
    Cc: "Sai Prakhya" <sai.praneeth.prakhya@intel.com>
    Cc: "Peter Zijlstra" <peterz@infradead.org>
    Cc: "Stephane Eranian" <eranian@google.com>
    Cc: "Dave Hansen" <dave.hansen@intel.com>
    Cc: "Shaohua Li" <shli@fb.com>
    Cc: "Nilay Vaish" <nilayvaish@gmail.com>
    Cc: "Vikas Shivappa" <vikas.shivappa@linux.intel.com>
    Cc: "Ingo Molnar" <mingo@elte.hu>
    Cc: "Borislav Petkov" <bp@suse.de>
    Cc: "H. Peter Anvin" <h.peter.anvin@intel.com>
    Link: http://lkml.kernel.org/r/1477142405-32078-8-git-send-email-fenghua.yu@intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
    113c6097
intel_rdt_common.h 149 Bytes