diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/broadwell/Kconfig | 3 | ||||
| -rw-r--r-- | src/soc/intel/broadwell/acpi.c | 1 | ||||
| -rw-r--r-- | src/soc/intel/broadwell/chip.h | 1 | ||||
| -rw-r--r-- | src/soc/intel/broadwell/cpu.c | 143 | ||||
| -rw-r--r-- | src/soc/intel/broadwell/include/soc/cpu.h | 4 | ||||
| -rw-r--r-- | src/soc/intel/broadwell/include/soc/msr.h | 10 | ||||
| -rw-r--r-- | src/soc/intel/broadwell/include/soc/soc_chip.h | 8 | ||||
| -rw-r--r-- | src/soc/intel/broadwell/systemagent.c | 5 |
8 files changed, 155 insertions, 20 deletions
diff --git a/src/soc/intel/broadwell/Kconfig b/src/soc/intel/broadwell/Kconfig index 35129af8b7..2430be61f5 100644 --- a/src/soc/intel/broadwell/Kconfig +++ b/src/soc/intel/broadwell/Kconfig @@ -33,9 +33,6 @@ config CPU_SPECIFIC_OPTIONS select UDELAY_TSC select TSC_MONOTONIC_TIMER select SOC_INTEL_COMMON - select SOC_INTEL_COMMON_BLOCK - select SOC_INTEL_COMMON_BLOCK_CPU - select SOC_INTEL_COMMON_BLOCK_POWER_LIMIT select INTEL_DESCRIPTOR_MODE_CAPABLE select SOC_INTEL_COMMON_ACPI_WAKE_SOURCE select HAVE_EM100PRO_SPI_CONSOLE_SUPPORT diff --git a/src/soc/intel/broadwell/acpi.c b/src/soc/intel/broadwell/acpi.c index 760842b2ab..1b4db1dae6 100644 --- a/src/soc/intel/broadwell/acpi.c +++ b/src/soc/intel/broadwell/acpi.c @@ -24,7 +24,6 @@ #include <soc/pm.h> #include <soc/systemagent.h> #include <soc/intel/broadwell/chip.h> -#include <intelblocks/cpulib.h> /* * List of supported C-states in this processor. Only the ULT parts support C8, diff --git a/src/soc/intel/broadwell/chip.h b/src/soc/intel/broadwell/chip.h index ae433536cd..45d512ac02 100644 --- a/src/soc/intel/broadwell/chip.h +++ b/src/soc/intel/broadwell/chip.h @@ -4,7 +4,6 @@ #define _SOC_INTEL_BROADWELL_CHIP_H_ #include <drivers/intel/gma/i915.h> -#include <intelblocks/cfg.h> #include <stdint.h> struct soc_intel_broadwell_config { diff --git a/src/soc/intel/broadwell/cpu.c b/src/soc/intel/broadwell/cpu.c index 694c7277a4..72efa3dc81 100644 --- a/src/soc/intel/broadwell/cpu.c +++ b/src/soc/intel/broadwell/cpu.c @@ -15,7 +15,6 @@ #include <cpu/intel/turbo.h> #include <cpu/x86/name.h> #include <delay.h> -#include <intelblocks/cpulib.h> #include <soc/cpu.h> #include <soc/msr.h> #include <soc/pci_devs.h> @@ -25,6 +24,64 @@ #include <soc/intel/broadwell/chip.h> #include <cpu/intel/common/common.h> +/* Convert time in seconds to POWER_LIMIT_1_TIME MSR value */ +static const u8 power_limit_time_sec_to_msr[] = { + [0] = 0x00, + [1] = 0x0a, + [2] = 0x0b, + [3] = 0x4b, + [4] = 0x0c, + [5] = 0x2c, + [6] = 0x4c, + [7] = 0x6c, + [8] = 0x0d, + [10] = 0x2d, + [12] = 0x4d, + [14] = 0x6d, + [16] = 0x0e, + [20] = 0x2e, + [24] = 0x4e, + [28] = 0x6e, + [32] = 0x0f, + [40] = 0x2f, + [48] = 0x4f, + [56] = 0x6f, + [64] = 0x10, + [80] = 0x30, + [96] = 0x50, + [112] = 0x70, + [128] = 0x11, +}; + +/* Convert POWER_LIMIT_1_TIME MSR value to seconds */ +static const u8 power_limit_time_msr_to_sec[] = { + [0x00] = 0, + [0x0a] = 1, + [0x0b] = 2, + [0x4b] = 3, + [0x0c] = 4, + [0x2c] = 5, + [0x4c] = 6, + [0x6c] = 7, + [0x0d] = 8, + [0x2d] = 10, + [0x4d] = 12, + [0x6d] = 14, + [0x0e] = 16, + [0x2e] = 20, + [0x4e] = 24, + [0x6e] = 28, + [0x0f] = 32, + [0x2f] = 40, + [0x4f] = 48, + [0x6f] = 56, + [0x10] = 64, + [0x30] = 80, + [0x50] = 96, + [0x70] = 112, + [0x11] = 128, +}; + /* The core 100MHz BCLK is disabled in deeper c-states. One needs to calibrate * the 100MHz BCLK against the 24MHz BCLK to restore the clocks properly * when a core is woken up. */ @@ -230,6 +287,90 @@ static void configure_pch_power_sharing(void) RCBA32(PMSYNC_CONFIG2) = pmsync2; } +int cpu_config_tdp_levels(void) +{ + msr_t platform_info; + + /* Bits 34:33 indicate how many levels supported */ + platform_info = rdmsr(MSR_PLATFORM_INFO); + return (platform_info.hi >> 1) & 3; +} + +/* + * Configure processor power limits if possible + * This must be done AFTER set of BIOS_RESET_CPL + */ +void set_power_limits(u8 power_limit_1_time) +{ + msr_t msr = rdmsr(MSR_PLATFORM_INFO); + msr_t limit; + unsigned int power_unit; + unsigned int tdp, min_power, max_power, max_time; + u8 power_limit_1_val; + + if (power_limit_1_time >= ARRAY_SIZE(power_limit_time_sec_to_msr)) + power_limit_1_time = ARRAY_SIZE(power_limit_time_sec_to_msr) - 1; + + if (!(msr.lo & PLATFORM_INFO_SET_TDP)) + return; + + /* Get units */ + msr = rdmsr(MSR_PKG_POWER_SKU_UNIT); + power_unit = 2 << ((msr.lo & 0xf) - 1); + + /* Get power defaults for this SKU */ + msr = rdmsr(MSR_PKG_POWER_SKU); + tdp = msr.lo & 0x7fff; + min_power = (msr.lo >> 16) & 0x7fff; + max_power = msr.hi & 0x7fff; + max_time = (msr.hi >> 16) & 0x7f; + + printk(BIOS_DEBUG, "CPU TDP: %u Watts\n", tdp / power_unit); + + if (power_limit_time_msr_to_sec[max_time] > power_limit_1_time) + power_limit_1_time = power_limit_time_msr_to_sec[max_time]; + + if (min_power > 0 && tdp < min_power) + tdp = min_power; + + if (max_power > 0 && tdp > max_power) + tdp = max_power; + + power_limit_1_val = power_limit_time_sec_to_msr[power_limit_1_time]; + + /* Set long term power limit to TDP */ + limit.lo = 0; + limit.lo |= tdp & PKG_POWER_LIMIT_MASK; + limit.lo |= PKG_POWER_LIMIT_EN; + limit.lo |= (power_limit_1_val & PKG_POWER_LIMIT_TIME_MASK) << + PKG_POWER_LIMIT_TIME_SHIFT; + + /* Set short term power limit to 1.25 * TDP */ + limit.hi = 0; + limit.hi |= ((tdp * 125) / 100) & PKG_POWER_LIMIT_MASK; + limit.hi |= PKG_POWER_LIMIT_EN; + /* Power limit 2 time is only programmable on server SKU */ + + wrmsr(MSR_PKG_POWER_LIMIT, limit); + + /* Set power limit values in MCHBAR as well */ + MCHBAR32(MCH_PKG_POWER_LIMIT_LO) = limit.lo; + MCHBAR32(MCH_PKG_POWER_LIMIT_HI) = limit.hi; + + /* Set DDR RAPL power limit by copying from MMIO to MSR */ + msr.lo = MCHBAR32(MCH_DDR_POWER_LIMIT_LO); + msr.hi = MCHBAR32(MCH_DDR_POWER_LIMIT_HI); + wrmsr(MSR_DDR_RAPL_LIMIT, msr); + + /* Use nominal TDP values for CPUs with configurable TDP */ + if (cpu_config_tdp_levels()) { + msr = rdmsr(MSR_CONFIG_TDP_NOMINAL); + limit.hi = 0; + limit.lo = msr.lo & 0xff; + wrmsr(MSR_TURBO_ACTIVATION_RATIO, limit); + } +} + static void configure_c_states(void) { msr_t msr; diff --git a/src/soc/intel/broadwell/include/soc/cpu.h b/src/soc/intel/broadwell/include/soc/cpu.h index 9167736c00..02605851ce 100644 --- a/src/soc/intel/broadwell/include/soc/cpu.h +++ b/src/soc/intel/broadwell/include/soc/cpu.h @@ -37,6 +37,10 @@ C_STATE_LATENCY_MICRO_SECONDS(C_STATE_LATENCY_CONTROL_ ##reg## _LIMIT, \ (IRTL_1024_NS >> 10)) +/* Configure power limits for turbo mode */ +void set_power_limits(u8 power_limit_1_time); +int cpu_config_tdp_levels(void); + /* CPU identification */ u32 cpu_family_model(void); u32 cpu_stepping(void); diff --git a/src/soc/intel/broadwell/include/soc/msr.h b/src/soc/intel/broadwell/include/soc/msr.h index b8ed3328cc..6a5f4dc5f1 100644 --- a/src/soc/intel/broadwell/include/soc/msr.h +++ b/src/soc/intel/broadwell/include/soc/msr.h @@ -3,8 +3,6 @@ #ifndef _BROADWELL_MSR_H_ #define _BROADWELL_MSR_H_ -#include <intelblocks/msr.h> - #define MSR_CORE_THREAD_COUNT 0x35 #define MSR_PLATFORM_INFO 0xce #define PLATFORM_INFO_SET_TDP (1 << 29) @@ -46,6 +44,14 @@ #define IRTL_RESPONSE_MASK (0x3ff) #define MSR_COUNTER_24_MHZ 0x637 +/* Long duration in low dword, short duration in high dword */ +#define MSR_PKG_POWER_LIMIT 0x610 +#define PKG_POWER_LIMIT_MASK 0x7fff +#define PKG_POWER_LIMIT_EN (1 << 15) +#define PKG_POWER_LIMIT_CLAMP (1 << 16) +#define PKG_POWER_LIMIT_TIME_SHIFT 17 +#define PKG_POWER_LIMIT_TIME_MASK 0x7f + #define MSR_VR_CURRENT_CONFIG 0x601 #define MSR_VR_MISC_CONFIG 0x603 #define MSR_PKG_POWER_SKU_UNIT 0x606 diff --git a/src/soc/intel/broadwell/include/soc/soc_chip.h b/src/soc/intel/broadwell/include/soc/soc_chip.h deleted file mode 100644 index bbd556e55d..0000000000 --- a/src/soc/intel/broadwell/include/soc/soc_chip.h +++ /dev/null @@ -1,8 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ - -#ifndef _SOC_BROADWELL_SOC_CHIP_H_ -#define _SOC_BROADWELL_SOC_CHIP_H_ - -#include "../../chip.h" - -#endif /* _SOC_BROADWELL_SOC_CHIP_H_ */ diff --git a/src/soc/intel/broadwell/systemagent.c b/src/soc/intel/broadwell/systemagent.c index 4b4848b4ef..dc6f546780 100644 --- a/src/soc/intel/broadwell/systemagent.c +++ b/src/soc/intel/broadwell/systemagent.c @@ -8,7 +8,6 @@ #include <device/device.h> #include <device/pci.h> #include <device/pci_ids.h> -#include <intelblocks/power_limit.h> #include <vendorcode/google/chromeos/chromeos.h> #include <soc/acpi.h> #include <soc/cpu.h> @@ -406,7 +405,6 @@ static void systemagent_read_resources(struct device *dev) static void systemagent_init(struct device *dev) { - struct soc_power_limits_config *config; u8 bios_reset_cpl, pair; /* Enable Power Aware Interrupt Routing */ @@ -426,8 +424,7 @@ static void systemagent_init(struct device *dev) /* Configure turbo power limits 1ms after reset complete bit */ mdelay(1); - config = config_of_soc(); - set_power_limits(MOBILE_SKU_PL1_TIME_SEC, config); + set_power_limits(28); } static struct device_operations systemagent_ops = { |