/* * Copyright (c) 2014 MediaTek Inc. * Author: James Liao * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #ifndef _DT_BINDINGS_CLK_MT8135_H #define _DT_BINDINGS_CLK_MT8135_H /* TOPCKGEN */ #define CLK_TOP_DSI0_LNTC_DSICLK 1 #define CLK_TOP_HDMITX_CLKDIG_CTS 2 #define CLK_TOP_CLKPH_MCK 3 #define CLK_TOP_CPUM_TCK_IN 4 #define CLK_TOP_MAINPLL_806M 5 #define CLK_TOP_MAINPLL_537P3M 6 #define CLK_TOP_MAINPLL_322P4M 7 #define CLK_TOP_MAINPLL_230P3M 8 #define CLK_TOP_UNIVPLL_624M 9 #define CLK_TOP_UNIVPLL_416M 10 #define CLK_TOP_UNIVPLL_249P6M 11 #define CLK_TOP_UNIVPLL_178P3M 12 #define CLK_TOP_UNIVPLL_48M 13 #define CLK_TOP_MMPLL_D2 14 #define CLK_TOP_MMPLL_D3 15 #define CLK_TOP_MMPLL_D5 16 #define CLK_TOP_MMPLL_D7 17 #define CLK_TOP_MMPLL_D4 18 #define CLK_TOP_MMPLL_D6 19 #define CLK_TOP_SYSPLL_D2 20 #define CLK_TOP_SYSPLL_D4 21 #define CLK_TOP_SYSPLL_D6 22 #define CLK_TOP_SYSPLL_D8 23 #define CLK_TOP_SYSPLL_D10 24 #define CLK_TOP_SYSPLL_D12 25 #define CLK_TOP_SYSPLL_D16 26 #define CLK_TOP_SYSPLL_D24 27 #define CLK_TOP_SYSPLL_D3 28 #define CLK_TOP_SYSPLL_D2P5 29 #define CLK_TOP_SYSPLL_D5 30 #define CLK_TOP_SYSPLL_D3P5 31 #define CLK_TOP_UNIVPLL1_D2 32 #define CLK_TOP_UNIVPLL1_D4 33 #define CLK_TOP_UNIVPLL1_D6 34 #define CLK_TOP_UNIVPLL1_D8 35 #define CLK_TOP_UNIVPLL1_D10 36 #define CLK_TOP_UNIVPLL2_D2 37 #define CLK_TOP_UNIVPLL2_D4 38 #define CLK_TOP_UNIVPLL2_D6 39 #define CLK_TOP_UNIVPLL2_D8 40 #define CLK_TOP_UNIVPLL_D3 41 #define CLK_TOP_UNIVPLL_D5 42 #define CLK_TOP_UNIVPLL_D7 43 #define CLK_TOP_UNIVPLL_D10 44 #define CLK_TOP_UNIVPLL_D26 45 #define CLK_TOP_APLL 46 #define CLK_TOP_APLL_D4 47 #define CLK_TOP_APLL_D8 48 #define CLK_TOP_APLL_D16 49 #define CLK_TOP_APLL_D24 50 #define CLK_TOP_LVDSPLL_D2 51 #define CLK_TOP_LVDSPLL_D4 52 #define CLK_TOP_LVDSPLL_D8 53 #define CLK_TOP_LVDSTX_CLKDIG_CT 54 #define CLK_TOP_VPLL_DPIX 55 #define CLK_TOP_TVHDMI_H 56 #define CLK_TOP_HDMITX_CLKDIG_D2 57 #define CLK_TOP_HDMITX_CLKDIG_D3 58 #define CLK_TOP_TVHDMI_D2 59 #define CLK_TOP_TVHDMI_D4 60 #define CLK_TOP_MEMPLL_MCK_D4 61 #define CLK_TOP_AXI_SEL 62 #define CLK_TOP_SMI_SEL 63 #define CLK_TOP_MFG_SEL 64 #define CLK_TOP_IRDA_SEL 65 #define CLK_TOP_CAM_SEL 66 #define CLK_TOP_AUD_INTBUS_SEL 67 #define CLK_TOP_JPG_SEL 68 #define CLK_TOP_DISP_SEL 69 #define CLK_TOP_MSDC30_1_SEL 70 #define CLK_TOP_MSDC30_2_SEL 71 #define CLK_TOP_MSDC30_3_SEL 72 #define CLK_TOP_MSDC30_4_SEL 73 #define CLK_TOP_USB20_SEL 74 #define CLK_TOP_VENC_SEL 75 #define CLK_TOP_SPI_SEL 76 #define CLK_TOP_UART_SEL 77 #define CLK_TOP_MEM_SEL 78 #define CLK_TOP_CAMTG_SEL 79 #define CLK_TOP_AUDIO_SEL 80 #define CLK_TOP_FIX_SEL 81 #define CLK_TOP_VDEC_SEL 82 #define CLK_TOP_DDRPHYCFG_SEL 83 #define CLK_TOP_DPILVDS_SEL 84 #define CLK_TOP_PMICSPI_SEL 85 #define CLK_TOP_MSDC30_0_SEL 86 #define CLK_TOP_SMI_MFG_AS_SEL 87 #define CLK_TOP_GCPU_SEL 88 #define CLK_TOP_DPI1_SEL 89 #define CLK_TOP_CCI_SEL 90 #define CLK_TOP_APLL_SEL 91 #define CLK_TOP_HDMIPLL_SEL 92 #define CLK_TOP_NR_CLK 93 /* APMIXED_SYS */ #define CLK_APMIXED_ARMPLL1 1 #define CLK_APMIXED_ARMPLL2 2 #define CLK_APMIXED_MAINPLL 3 #define CLK_APMIXED_UNIVPLL 4 #define CLK_APMIXED_MMPLL 5 #define CLK_APMIXED_MSDCPLL 6 #define CLK_APMIXED_TVDPLL 7 #define CLK_APMIXED_LVDSPLL 8 #define CLK_APMIXED_AUDPLL 9 #define CLK_APMIXED_VDECPLL 10 #define CLK_APMIXED_NR_CLK 11 /* INFRA_SYS */ #define CLK_INFRA_PMIC_WRAP 1 #define CLK_INFRA_PMICSPI 2 #define CLK_INFRA_CCIF1_AP_CTRL 3 #define CLK_INFRA_CCIF0_AP_CTRL 4 #define CLK_INFRA_KP 5 #define CLK_INFRA_CPUM 6 #define CLK_INFRA_M4U 7 #define CLK_INFRA_MFGAXI 8 #define CLK_INFRA_DEVAPC 9 #define CLK_INFRA_AUDIO 10 #define CLK_INFRA_MFG_BUS 11 #define CLK_INFRA_SMI 12 #define CLK_INFRA_DBGCLK 13 #define CLK_INFRA_NR_CLK 14 /* PERI_SYS */ #define CLK_PERI_I2C5 1 #define CLK_PERI_I2C4 2 #define CLK_PERI_I2C3 3 #define CLK_PERI_I2C2 4 #define CLK_PERI_I2C1 5 #define CLK_PERI_I2C0 6 #define CLK_PERI_UART3 7 #define CLK_PERI_UART2 8 #define CLK_PERI_UART1 9 #define CLK_PERI_UART0 10 #define CLK_PERI_IRDA 11 #define CLK_PERI_NLI 12 #define CLK_PERI_MD_HIF 13 #define CLK_PERI_AP_HIF 14 #define CLK_PERI_MSDC30_3 15 #define CLK_PERI_MSDC30_2 16 #define CLK_PERI_MSDC30_1 17 #define CLK_PERI_MSDC20_2 18 #define CLK_PERI_MSDC20_1 19 #define CLK_PERI_AP_DMA 20 #define CLK_PERI_USB1 21 #define CLK_PERI_USB0 22 #define CLK_PERI_PWM 23 #define CLK_PERI_PWM7 24 #define CLK_PERI_PWM6 25 #define CLK_PERI_PWM5 26 #define CLK_PERI_PWM4 27 #define CLK_PERI_PWM3 28 #define CLK_PERI_PWM2 29 #define CLK_PERI_PWM1 30 #define CLK_PERI_THERM 31 #define CLK_PERI_NFI 32 #define CLK_PERI_USBSLV 33 #define CLK_PERI_USB1_MCU 34 #define CLK_PERI_USB0_MCU 35 #define CLK_PERI_GCPU 36 #define CLK_PERI_FHCTL 37 #define CLK_PERI_SPI1 38 #define CLK_PERI_AUXADC 39 #define CLK_PERI_PERI_PWRAP 40 #define CLK_PERI_I2C6 41 #define CLK_PERI_UART0_SEL 42 #define CLK_PERI_UART1_SEL 43 #define CLK_PERI_UART2_SEL 44 #define CLK_PERI_UART3_SEL 45 #define CLK_PERI_NR_CLK 46 #endif /* _DT_BINDINGS_CLK_MT8135_H */ aea85d3dda1416c187915f4a30b04b1f (diff)
cpufreq: intel_pstate: Disable energy efficiency optimization
Some Kabylake desktop processors may not reach max turbo when running in HWP mode, even if running under sustained 100% utilization. This occurs when the HWP.EPP (Energy Performance Preference) is set to "balance_power" (0x80) -- the default on most systems. It occurs because the platform BIOS may erroneously enable an energy-efficiency setting -- MSR_IA32_POWER_CTL BIT-EE, which is not recommended to be enabled on this SKU. On the failing systems, this BIOS issue was not discovered when the desktop motherboard was tested with Windows, because the BIOS also neglects to provide the ACPI/CPPC table, that Windows requires to enable HWP, and so Windows runs in legacy P-state mode, where this setting has no effect. Linux' intel_pstate driver does not require ACPI/CPPC to enable HWP, and so it runs in HWP mode, exposing this incorrect BIOS configuration. There are several ways to address this problem. First, Linux can also run in legacy P-state mode on this system. As intel_pstate is how Linux enables HWP, booting with "intel_pstate=disable" will run in acpi-cpufreq/ondemand legacy p-state mode. Or second, the "performance" governor can be used with intel_pstate, which will modify HWP.EPP to 0. Or third, starting in 4.10, the /sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference attribute in can be updated from "balance_power" to "performance". Or fourth, apply this patch, which fixes the erroneous setting of MSR_IA32_POWER_CTL BIT_EE on this model, allowing the default configuration to function as designed. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Reviewed-by: Len Brown <len.brown@intel.com> Cc: 4.6+ <stable@vger.kernel.org> # 4.6+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/trace/perf.h')