/*
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2025 The FreeBSD Foundation
 *
 * This software was developed by Aymeric Wibo <obiwac@freebsd.org>
 * under sponsorship from the FreeBSD Foundation.
 */
#ifndef _AMDSMU_REG_H_
#define _AMDSMU_REG_H_

#include <sys/types.h>

/*
 * TODO These are in common with amdtemp; should we find a way to factor these
 * out?  Also, there are way more of these.  I couldn't find a centralized place
 * which lists them though.
 */
#define PCI_DEVICEID_AMD_CEZANNE_ROOT           0x1630
#define PCI_DEVICEID_AMD_REMBRANDT_ROOT         0x14B5
#define PCI_DEVICEID_AMD_PHOENIX_ROOT           0x14E8
#define PCI_DEVICEID_AMD_STRIX_POINT_ROOT       0x14A4

#define SMU_INDEX_ADDRESS       0xB8
#define SMU_INDEX_DATA          0xBC

#define SMU_PHYSBASE_ADDR_LO    0x13B102E8
#define SMU_PHYSBASE_ADDR_HI    0x13B102EC

#define SMU_MEM_SIZE            0x1000
#define SMU_REG_SPACE_OFF       0x10000

#define SMU_REG_MESSAGE         0x538
#define SMU_REG_RESPONSE        0x980
#define SMU_REG_ARGUMENT        0x9BC

#define SMU_REG_IDLEMASK_CEZANNE        0x94
#define SMU_REG_IDLEMASK_PHOENIX        0xD14

enum amdsmu_res {
        SMU_RES_WAIT            = 0x00,
        SMU_RES_OK              = 0x01,
        SMU_RES_REJECT_BUSY     = 0xFC,
        SMU_RES_REJECT_PREREQ   = 0xFD,
        SMU_RES_UNKNOWN         = 0xFE,
        SMU_RES_FAILED          = 0xFF,
};

enum amdsmu_msg {
        SMU_MSG_GETSMUVERSION           = 0x02,
        SMU_MSG_SLEEP_HINT              = 0x03,
        SMU_MSG_LOG_GETDRAM_ADDR_HI     = 0x04,
        SMU_MSG_LOG_GETDRAM_ADDR_LO     = 0x05,
        SMU_MSG_LOG_START               = 0x06,
        SMU_MSG_LOG_RESET               = 0x07,
        SMU_MSG_LOG_DUMP_DATA           = 0x08,
        SMU_MSG_GET_SUP_CONSTRAINTS     = 0x09,
};

/* XXX Copied from Linux struct smu_metrics. */
struct amdsmu_metrics {
        uint32_t table_version;
        uint32_t hint_count;
        uint32_t s0i3_last_entry_status;
        uint32_t time_last_in_s0i2;
        uint64_t time_last_entering_s0i3;
        uint64_t total_time_entering_s0i3;
        uint64_t time_last_resuming;
        uint64_t total_time_resuming;
        uint64_t time_last_in_s0i3;
        uint64_t total_time_in_s0i3;
        uint64_t time_last_in_sw_drips;
        uint64_t total_time_in_sw_drips;
        /*
         * This is how long each IP block was active for (us), i.e., blocking
         * entry to S0i3.  In Linux, these are called "timecondition_notmet_*".
         *
         * XXX Total active time for IP blocks seems to be buggy and reporting
         * garbage (at least on Phoenix), so it's disabled for now.  The last
         * active time for the USB4_0 IP block also seems to be buggy.
         */
        uint64_t ip_block_last_active_time[32];
#ifdef IP_BLOCK_TOTAL_ACTIVE_TIME
        uint64_t ip_block_total_active_time[32];
#endif
} __attribute__((packed));

#endif /* _AMDSMU_REG_H_ */