> From: Rafael J. Wysocki <rafael.j.wyso...@intel.com> > Subject: [PATCH] cpufreq: governor: Make governor private data per-policy > > 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 <rafael.j.wyso...@intel.com> > --- > > This adds a header file for the definitions of data structures shared > between ondemand and amd_freq_sensitivity. > > The latter is updated to look for the governor tunables in struct > od_policy_dbs_info > instead of struct od_cpu_dbs_info_s. > > --- > drivers/cpufreq/amd_freq_sensitivity.c | 5 +--- > drivers/cpufreq/cpufreq_conservative.c | 34 > +++++++++++++++++++++++++++++---- > drivers/cpufreq/cpufreq_governor.c | 7 ++---- > drivers/cpufreq/cpufreq_governor.h | 9 +------- > drivers/cpufreq/cpufreq_ondemand.c | 34 > +++++++++++++++++++++++---------- > drivers/cpufreq/cpufreq_ondemand.h | 26 +++++++++++++++++++++++++ > 6 files changed, 87 insertions(+), 28 deletions(-)
Acked-by: Viresh Kumar <viresh.ku...@linaro.org> -- viresh
