09 Jun, 2016

1 commit


09 Mar, 2016

2 commits

  • Move the definitions of struct od_dbs_tuners and struct cs_dbs_tuners
    from the common governor header to the ondemand and conservative
    governor code, respectively, as they don't need to be in the common
    header any more.

    No functional changes.

    Signed-off-by: Rafael J. Wysocki
    Acked-by: Viresh Kumar

    Rafael J. Wysocki
     
  • Some fields in struct od_cpu_dbs_info_s and struct cs_cpu_dbs_info_s
    are only used for a limited set of CPUs. Namely, if a policy is
    shared between multiple CPUs, those fields will only be used for one
    of them (policy->cpu). This means that they really are per-policy
    rather than per-CPU and holding room for them in per-CPU data
    structures is generally wasteful. Also moving those fields into
    per-policy data structures will allow some significant simplifications
    to be made going forward.

    For this reason, introduce struct cs_policy_dbs_info and
    struct od_policy_dbs_info to hold those fields. Define each of the
    new structures as an extension of struct policy_dbs_info (such that
    struct policy_dbs_info is embedded in each of them) and introduce
    new ->alloc and ->free governor callbacks to allocate and free
    those structures, respectively, such that ->alloc() will return
    a pointer to the struct policy_dbs_info embedded in the allocated
    data structure and ->free() will take that pointer as its argument.

    With that, modify the code accessing the data fields in question
    in per-CPU data objects to look for them in the new structures
    via the struct policy_dbs_info pointer available to it and drop
    them from struct od_cpu_dbs_info_s and struct cs_cpu_dbs_info_s.

    Signed-off-by: Rafael J. Wysocki
    Acked-by: Viresh Kumar

    Rafael J. Wysocki