diff options
Diffstat (limited to 'src/soc/intel/icelake/include/soc/cpu.h')
| -rw-r--r-- | src/soc/intel/icelake/include/soc/cpu.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/soc/intel/icelake/include/soc/cpu.h b/src/soc/intel/icelake/include/soc/cpu.h new file mode 100644 index 0000000000..856d685890 --- /dev/null +++ b/src/soc/intel/icelake/include/soc/cpu.h @@ -0,0 +1,48 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2018 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * 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 _SOC_ICELAKE_CPU_H_ +#define _SOC_ICELAKE_CPU_H_ + +#include <arch/cpu.h> +#include <device/device.h> +#include <intelblocks/msr.h> + +/* Latency times in units of 32768ns */ +#define C_STATE_LATENCY_CONTROL_0_LIMIT 0x9d +#define C_STATE_LATENCY_CONTROL_1_LIMIT 0x9d +#define C_STATE_LATENCY_CONTROL_2_LIMIT 0x9d +#define C_STATE_LATENCY_CONTROL_3_LIMIT 0x9d +#define C_STATE_LATENCY_CONTROL_4_LIMIT 0x9d +#define C_STATE_LATENCY_CONTROL_5_LIMIT 0x9d + +/* Power in units of mW */ +#define C1_POWER 0x3e8 +#define C6_POWER 0x15e +#define C7_POWER 0xc8 +#define C8_POWER 0xc8 +#define C9_POWER 0xc8 +#define C10_POWER 0xc8 + +#define C_STATE_LATENCY_MICRO_SECONDS(limit, base) \ + (((1 << ((base)*5)) * (limit)) / 1000) +#define C_STATE_LATENCY_FROM_LAT_REG(reg) \ + 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); + +#endif |