Rafael J. Wysocki f5c8cf2a49 cpufreq: intel_pstate: hybrid: Use known scaling factor for P-cores ... Commit 46573fd636 ("cpufreq: intel_pstate: hybrid: Rework HWP calibration") attempted to use the information from CPPC (the nominal performance in particular) to obtain the scaling factor allowing the frequency to be computed if the HWP performance level of the given CPU is known or vice versa. However, it turns out that on some platforms this doesn't work, because the CPPC information on them does not align with the contents of the MSR_HWP_CAPABILITIES registers. This basically means that the only way to make intel_pstate work on all of the hybrid platforms to date is to use the observation that on all of them the scaling factor between the HWP performance levels and frequency for P-cores is 78741 (approximately 100000/1.27). For E-cores it is 100000, which is the same as for all of the non-hybrid "core" platforms and does not require any changes. Accordingly, make intel_pstate use 78741 as the scaling factor between HWP performance levels and frequency for P-cores on all hybrid platforms and drop the dependency of the HWP calibration code on CPPC. Fixes: 46573fd636 ("cpufreq: intel_pstate: hybrid: Rework HWP calibration") Reported-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: 5.15+ <stable@vger.kernel.org> # 5.15+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2022-10-25 15:09:23 +02:00
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Kconfig	…
Kconfig.arm	nvmem: prefix all symbols with NVMEM_	2022-09-24 14:54:38 +02:00
Kconfig.powerpc	…
Kconfig.x86	cpufreq: amd-pstate: Add explanation for X86_AMD_PSTATE_UT	2022-10-05 11:05:18 -06:00
Makefile	cpufreq: amd-pstate: Add test module for amd-pstate driver	2022-10-05 11:05:17 -06:00
acpi-cpufreq.c	…
amd-pstate-trace.c	…
amd-pstate-trace.h	…
amd-pstate-ut.c	cpufreq: amd-pstate: modify type in argument 2 for filp_open	2022-10-05 11:05:18 -06:00
amd-pstate.c	linux-kselftest-next-6.1-rc1	2022-10-06 12:53:15 -07:00
amd_freq_sensitivity.c	…
armada-8k-cpufreq.c	…
armada-37xx-cpufreq.c	…
bmips-cpufreq.c	cpufreq: bmips-cpufreq: Use module_init and add module_exit	2022-08-30 13:49:23 +05:30
brcmstb-avs-cpufreq.c	…
cppc_cpufreq.c	ACPI: CPPC: Disable FIE if registers in PCC regions	2022-09-24 18:43:46 +02:00
cpufreq-dt-platdev.c	cpufreq: Add SM6115 to cpufreq-dt-platdev blocklist	2022-08-16 10:50:49 +05:30
cpufreq-dt.c	cpufreq: dt: Switch to use dev_err_probe() helper	2022-10-18 16:22:25 +05:30
cpufreq-dt.h	…
cpufreq-nforce2.c	…
cpufreq.c	cpufreq: check only freq_table in __resolve_freq()	2022-08-23 20:00:52 +02:00
cpufreq_conservative.c	…
cpufreq_governor.c	…
cpufreq_governor.h	…
cpufreq_governor_attr_set.c	…
cpufreq_ondemand.c	…
cpufreq_ondemand.h	…
cpufreq_performance.c	…
cpufreq_powersave.c	…
cpufreq_stats.c	…
cpufreq_userspace.c	…
davinci-cpufreq.c	…
e_powersaver.c	…
elanfreq.c	…
freq_table.c	…
gx-suspmod.c	…
highbank-cpufreq.c	cpufreq: Add __init annotation to module init funcs	2022-09-26 11:15:04 +05:30
ia64-acpi-cpufreq.c	…
imx-cpufreq-dt.c	…
imx6q-cpufreq.c	cpufreq: imx6q: Switch to use dev_err_probe() helper	2022-10-18 16:22:25 +05:30
intel_pstate.c	cpufreq: intel_pstate: hybrid: Use known scaling factor for P-cores	2022-10-25 15:09:23 +02:00
kirkwood-cpufreq.c	…
longhaul.c	…
longhaul.h	…
longrun.c	…
loongson1-cpufreq.c	…
loongson2_cpufreq.c	…
maple-cpufreq.c	…
mediatek-cpufreq-hw.c	…
mediatek-cpufreq.c	…
mvebu-cpufreq.c	…
omap-cpufreq.c	…
p4-clockmod.c	…
pasemi-cpufreq.c	…
pcc-cpufreq.c	…
pmac32-cpufreq.c	…
pmac64-cpufreq.c	…
powernow-k6.c	…
powernow-k7.c	…
powernow-k7.h	…
powernow-k8.c	…
powernow-k8.h	…
powernv-cpufreq.c	…
ppc_cbe_cpufreq.c	…
ppc_cbe_cpufreq.h	…
ppc_cbe_cpufreq_pervasive.c	…
ppc_cbe_cpufreq_pmi.c	…
pxa2xx-cpufreq.c	…
pxa3xx-cpufreq.c	…
qcom-cpufreq-hw.c	cpufreq: qcom-cpufreq-hw: Add cpufreq qos for LMh	2022-09-26 14:05:45 +05:30
qcom-cpufreq-nvmem.c	cpufreq: qcom-nvmem: Switch to use dev_err_probe() helper	2022-10-18 16:22:26 +05:30
qoriq-cpufreq.c	…
raspberrypi-cpufreq.c	…
s3c24xx-cpufreq-debugfs.c	…
s3c24xx-cpufreq.c	…
s3c64xx-cpufreq.c	…
s3c2410-cpufreq.c	…
s3c2412-cpufreq.c	…
s3c2416-cpufreq.c	…
s3c2440-cpufreq.c	…
s5pv210-cpufreq.c	…
sa1100-cpufreq.c	…
sa1110-cpufreq.c	…
sc520_freq.c	…
scmi-cpufreq.c	…
scpi-cpufreq.c	…
sh-cpufreq.c	…
sparc-us2e-cpufreq.c	…
sparc-us3-cpufreq.c	…
spear-cpufreq.c	…
speedstep-centrino.c	…
speedstep-ich.c	…
speedstep-lib.c	…
speedstep-lib.h	…
speedstep-smi.c	…
sti-cpufreq.c	cpufreq: Add __init annotation to module init funcs	2022-09-26 11:15:04 +05:30
sun50i-cpufreq-nvmem.c	cpufreq: sun50i: Switch to use dev_err_probe() helper	2022-10-18 16:22:26 +05:30
tegra20-cpufreq.c	…
tegra124-cpufreq.c	…
tegra186-cpufreq.c	…
tegra194-cpufreq.c	cpufreq: tegra194: Fix module loading	2022-10-18 16:22:25 +05:30
ti-cpufreq.c	cpufreq: Add __init annotation to module init funcs	2022-09-26 11:15:04 +05:30
vexpress-spc-cpufreq.c	…