On 2019/2/14 19:39, John Garry wrote: > On 14/02/2019 07:46, Xiongfeng Wang wrote: >> Hisilicon chips do not support delivered performance counter register >> and reference performance counter register. But the platform can >> calculate the real performance using its own method. This patch provide >> a workaround for this problem, and other platforms can also use this >> workaround framework. We reuse the desired performance register to >> store the real performance calculated by the platform. After the >> platform finished the frequency adjust, it gets the real performance and >> writes it into desired performance register. OS can use it to calculate >> the real frequency. >> > > It would be convenient for reviewers to detail what changed between versions in future. Thanks, I will add changelog next time. Xiongfeng > > John > >> Xiongfeng Wang (2): >> ACPI / CPPC: Add a helper to get desired performance >> cpufreq / cppc: Work around for Hisilicon CPPC cpufreq >> >> drivers/acpi/cppc_acpi.c | 38 +++++++++++++++++++++++ >> drivers/cpufreq/cppc_cpufreq.c | 70 ++++++++++++++++++++++++++++++++++++++++++ >> include/acpi/cppc_acpi.h | 1 + >> 3 files changed, 109 insertions(+) >> > > > > . >
