| commit | c197d758036d8c77923ae3f88571cf198283107e | |
| author | Hoan Tran <hotran@apm.com> | |
| Thu, 13 Oct 2016 17:33:35 +0000 (13 10:33 -0700) | ||
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | |
| Thu, 13 Oct 2016 21:10:41 +0000 (13 23:10 +0200) | ||
| tree | 9dea7912efc8aa2036eec6c157403643a3e07f5a | treesnapshot (tar.gz zip) |
| parent | abb6627910a1e783c8e034b35b7c80e5e7f98f41 | commitdiff |
cpufreq: CPPC: Correct desired_perf calculation
The desired_perf is an abstract performance number. Its value should
be in the range of [lowest perf, highest perf] of CPPC.
The correct calculation is
desired_perf = freq * cppc_highest_perf / cppc_dmi_max_khz
And cppc_cpufreq_set_target() returns if desired_perf is exactly
the same with the old perf.
Signed-off-by: Hoan Tran <hotran@apm.com>
Reviewed-by: Prashanth Prakash <pprakash@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The desired_perf is an abstract performance number. Its value should
be in the range of [lowest perf, highest perf] of CPPC.
The correct calculation is
desired_perf = freq * cppc_highest_perf / cppc_dmi_max_khz
And cppc_cpufreq_set_target() returns if desired_perf is exactly
the same with the old perf.
Signed-off-by: Hoan Tran <hotran@apm.com>
Reviewed-by: Prashanth Prakash <pprakash@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| drivers/cpufreq/cppc_cpufreq.c | diffblobblamehistory |