Loading .mailmap +2 −0 Original line number Diff line number Diff line Loading @@ -29,6 +29,7 @@ Alexandre Belloni <alexandre.belloni@bootlin.com> <alexandre.belloni@free-electr Alexei Starovoitov <ast@kernel.org> <alexei.starovoitov@gmail.com> Alexei Starovoitov <ast@kernel.org> <ast@fb.com> Alexei Starovoitov <ast@kernel.org> <ast@plumgrid.com> Alex Hung <alexhung@gmail.com> <alex.hung@canonical.com> Alex Shi <alexs@kernel.org> <alex.shi@intel.com> Alex Shi <alexs@kernel.org> <alex.shi@linaro.org> Alex Shi <alexs@kernel.org> <alex.shi@linux.alibaba.com> Loading Loading @@ -382,6 +383,7 @@ Santosh Shilimkar <santosh.shilimkar@oracle.org> Santosh Shilimkar <ssantosh@kernel.org> Sarangdhar Joshi <spjoshi@codeaurora.org> Sascha Hauer <s.hauer@pengutronix.de> Satya Priya <quic_c_skakit@quicinc.com> <skakit@codeaurora.org> S.Çağlar Onur <caglar@pardus.org.tr> Sean Christopherson <seanjc@google.com> <sean.j.christopherson@intel.com> Sean Nyekjaer <sean@geanix.com> <sean.nyekjaer@prevas.dk> Loading Documentation/admin-guide/kernel-parameters.txt +11 −0 Original line number Diff line number Diff line Loading @@ -6959,3 +6959,14 @@ memory, and other data can't be written using xmon commands. off xmon is disabled. amd_pstate= [X86] disable Do not enable amd_pstate as the default scaling driver for the supported processors passive Use amd_pstate as a scaling driver, driver requests a desired performance on this abstract scale and the power management firmware translates the requests into actual hardware states (core frequency, data fabric and memory clocks etc.) Documentation/admin-guide/pm/amd-pstate.rst +13 −17 Original line number Diff line number Diff line Loading @@ -283,23 +283,19 @@ efficiency frequency management method on AMD processors. Kernel Module Options for ``amd-pstate`` ========================================= .. _shared_mem: ``shared_mem`` Use a module param (shared_mem) to enable related processors manually with **amd_pstate.shared_mem=1**. Due to the performance issue on the processors with `Shared Memory Support <perf_cap_>`_, we disable it presently and will re-enable this by default once we address performance issue with this solution. To check whether the current processor is using `Full MSR Support <perf_cap_>`_ or `Shared Memory Support <perf_cap_>`_ : :: ray@hr-test1:~$ lscpu | grep cppc Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate ssbd mba ibrs ibpb stibp vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local clzero irperf xsaveerptr rdpru wbnoinvd cppc arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif v_spec_ctrl umip pku ospke vaes vpclmulqdq rdpid overflow_recov succor smca fsrm If the CPU flags have ``cppc``, then this processor supports `Full MSR Support <perf_cap_>`_. Otherwise, it supports `Shared Memory Support <perf_cap_>`_. Passive Mode ------------ ``amd_pstate=passive`` It will be enabled if the ``amd_pstate=passive`` is passed to the kernel in the command line. In this mode, ``amd_pstate`` driver software specifies a desired QoS target in the CPPC performance scale as a relative number. This can be expressed as percentage of nominal performance (infrastructure max). Below the nominal sustained performance level, desired performance expresses the average performance level of the processor subject to the Performance Reduction Tolerance register. Above the nominal performance level, processor must provide at least nominal performance requested and go higher if current operating conditions allow. ``cpupower`` tool support for ``amd-pstate`` Loading Documentation/devicetree/bindings/iio/adc/aspeed,ast2600-adc.yaml +0 −7 Original line number Diff line number Diff line Loading @@ -62,13 +62,6 @@ properties: description: Inform the driver that last channel will be used to sensor battery. aspeed,trim-data-valid: type: boolean description: | The ADC reference voltage can be calibrated to obtain the trimming data which will be stored in otp. This property informs the driver that the data store in the otp is valid. required: - compatible - reg Loading Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml +1 −1 Original line number Diff line number Diff line Loading @@ -24,7 +24,7 @@ properties: oneOf: - items: - enum: - qcom,sc7280-bwmon - qcom,sc7280-cpu-bwmon - qcom,sdm845-bwmon - const: qcom,msm8998-bwmon - const: qcom,msm8998-bwmon # BWMON v4 Loading Loading
.mailmap +2 −0 Original line number Diff line number Diff line Loading @@ -29,6 +29,7 @@ Alexandre Belloni <alexandre.belloni@bootlin.com> <alexandre.belloni@free-electr Alexei Starovoitov <ast@kernel.org> <alexei.starovoitov@gmail.com> Alexei Starovoitov <ast@kernel.org> <ast@fb.com> Alexei Starovoitov <ast@kernel.org> <ast@plumgrid.com> Alex Hung <alexhung@gmail.com> <alex.hung@canonical.com> Alex Shi <alexs@kernel.org> <alex.shi@intel.com> Alex Shi <alexs@kernel.org> <alex.shi@linaro.org> Alex Shi <alexs@kernel.org> <alex.shi@linux.alibaba.com> Loading Loading @@ -382,6 +383,7 @@ Santosh Shilimkar <santosh.shilimkar@oracle.org> Santosh Shilimkar <ssantosh@kernel.org> Sarangdhar Joshi <spjoshi@codeaurora.org> Sascha Hauer <s.hauer@pengutronix.de> Satya Priya <quic_c_skakit@quicinc.com> <skakit@codeaurora.org> S.Çağlar Onur <caglar@pardus.org.tr> Sean Christopherson <seanjc@google.com> <sean.j.christopherson@intel.com> Sean Nyekjaer <sean@geanix.com> <sean.nyekjaer@prevas.dk> Loading
Documentation/admin-guide/kernel-parameters.txt +11 −0 Original line number Diff line number Diff line Loading @@ -6959,3 +6959,14 @@ memory, and other data can't be written using xmon commands. off xmon is disabled. amd_pstate= [X86] disable Do not enable amd_pstate as the default scaling driver for the supported processors passive Use amd_pstate as a scaling driver, driver requests a desired performance on this abstract scale and the power management firmware translates the requests into actual hardware states (core frequency, data fabric and memory clocks etc.)
Documentation/admin-guide/pm/amd-pstate.rst +13 −17 Original line number Diff line number Diff line Loading @@ -283,23 +283,19 @@ efficiency frequency management method on AMD processors. Kernel Module Options for ``amd-pstate`` ========================================= .. _shared_mem: ``shared_mem`` Use a module param (shared_mem) to enable related processors manually with **amd_pstate.shared_mem=1**. Due to the performance issue on the processors with `Shared Memory Support <perf_cap_>`_, we disable it presently and will re-enable this by default once we address performance issue with this solution. To check whether the current processor is using `Full MSR Support <perf_cap_>`_ or `Shared Memory Support <perf_cap_>`_ : :: ray@hr-test1:~$ lscpu | grep cppc Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate ssbd mba ibrs ibpb stibp vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local clzero irperf xsaveerptr rdpru wbnoinvd cppc arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif v_spec_ctrl umip pku ospke vaes vpclmulqdq rdpid overflow_recov succor smca fsrm If the CPU flags have ``cppc``, then this processor supports `Full MSR Support <perf_cap_>`_. Otherwise, it supports `Shared Memory Support <perf_cap_>`_. Passive Mode ------------ ``amd_pstate=passive`` It will be enabled if the ``amd_pstate=passive`` is passed to the kernel in the command line. In this mode, ``amd_pstate`` driver software specifies a desired QoS target in the CPPC performance scale as a relative number. This can be expressed as percentage of nominal performance (infrastructure max). Below the nominal sustained performance level, desired performance expresses the average performance level of the processor subject to the Performance Reduction Tolerance register. Above the nominal performance level, processor must provide at least nominal performance requested and go higher if current operating conditions allow. ``cpupower`` tool support for ``amd-pstate`` Loading
Documentation/devicetree/bindings/iio/adc/aspeed,ast2600-adc.yaml +0 −7 Original line number Diff line number Diff line Loading @@ -62,13 +62,6 @@ properties: description: Inform the driver that last channel will be used to sensor battery. aspeed,trim-data-valid: type: boolean description: | The ADC reference voltage can be calibrated to obtain the trimming data which will be stored in otp. This property informs the driver that the data store in the otp is valid. required: - compatible - reg Loading
Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml +1 −1 Original line number Diff line number Diff line Loading @@ -24,7 +24,7 @@ properties: oneOf: - items: - enum: - qcom,sc7280-bwmon - qcom,sc7280-cpu-bwmon - qcom,sdm845-bwmon - const: qcom,msm8998-bwmon - const: qcom,msm8998-bwmon # BWMON v4 Loading