vr_config.h

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/* SPDX-License-Identifier: GPL-2.0-only */
 
/* VR Settings for each domain */
 
#ifndef _SOC_VR_CONFIG_H_
#define _SOC_VR_CONFIG_H_
 
#include <fsp/api.h>
 
struct vr_config {
 
        /* The below settings will take effect when this is set to 1
         * for that domain. */
        uint8_t vr_config_enable;
 
        /* Power State X current cutoff in 1/4 Amp increments
         * Range is 0-128A */
        uint16_t psi1threshold;
        uint16_t psi2threshold;
        uint16_t psi3threshold;
 
        /* Enable power state 3/4 for different domains */
        uint8_t psi3enable;
        uint8_t psi4enable;
 
        /* Imon slope correction. Specified in 1/100 increment
         * values. Range is 0-200. 125 = 1.25 */
        uint8_t imon_slope;
 
        /* Imon offset correction. Units 1/1000, Range 0-63999
         * For an offset = 12.580, use 12580. 0 = Auto */
        uint8_t imon_offset;
 
        /* VR Icc Max limit. 0-255A in 1/4 A units. 400 = 100A */
        uint16_t icc_max;
 
        /* VR Voltage Limit. Range is 0-7999mV */
        uint16_t voltage_limit;
 
        /* AC and DC Loadline in 1/100 mOhms. Range is 0-6249 */
        uint16_t ac_loadline;
        uint16_t dc_loadline;
 
        /* Thermal Design Current (TDC) Power Limit will take effect when
           this is set to 0 */
        uint8_t tdc_disable;
 
        /* Thermal Design Current (TDC) Power Limit in 1/8 A units */
        uint16_t tdc_powerlimit;
};
 
#define VR_CFG_AMP(i) (uint16_t)((i) * 4)
#define VR_CFG_MOHMS(i) (uint16_t)((i) * 100)
#define VR_CFG_TDC_AMP(i) (uint16_t)((i) * 8)
 
/* VrConfig Settings for 4 domains
 * 0 = System Agent, 1 = IA Core,
 * 2 = GT unsliced,  3 = GT sliced */
enum vr_domain {
        VR_SYSTEM_AGENT,
        VR_IA_CORE,
        VR_GT_UNSLICED,
        VR_GT_SLICED,
        NUM_VR_DOMAINS
};
 
#define VR_CFG_ALL_DOMAINS_ICC(sa, ia, gt_unsl, gt_sl)  \
        {                                                       \
                [VR_SYSTEM_AGENT] = VR_CFG_AMP(sa),             \
                [VR_IA_CORE]      = VR_CFG_AMP(ia),             \
                [VR_GT_UNSLICED]  = VR_CFG_AMP(gt_unsl),        \
                [VR_GT_SLICED]    = VR_CFG_AMP(gt_sl),          \
        }
 
#define VR_CFG_ALL_DOMAINS_LOADLINE(sa, ia, gt_unsl, gt_sl)     \
        {                                                       \
                [VR_SYSTEM_AGENT] = VR_CFG_MOHMS(sa),           \
                [VR_IA_CORE]      = VR_CFG_MOHMS(ia),           \
                [VR_GT_UNSLICED]  = VR_CFG_MOHMS(gt_unsl),      \
                [VR_GT_SLICED]    = VR_CFG_MOHMS(gt_sl),        \
        }
 
#define VR_CFG_ALL_DOMAINS_TDC(sa, ia, gt_unsl, gt_sl)          \
        {                                                       \
                [VR_SYSTEM_AGENT] = VR_CFG_TDC_AMP(sa),         \
                [VR_IA_CORE]      = VR_CFG_TDC_AMP(ia),         \
                [VR_GT_UNSLICED]  = VR_CFG_TDC_AMP(gt_unsl),    \
                [VR_GT_SLICED]    = VR_CFG_TDC_AMP(gt_sl),      \
        }
 
void fill_vr_domain_config(void *params,
                int domain, const struct vr_config *cfg);
 
#endif