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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/dev/amdsmu/amdsmu_reg.h
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/*

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 * SPDX-License-Identifier: BSD-2-Clause

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 *

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 * Copyright (c) 2025 The FreeBSD Foundation

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 *

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 * This software was developed by Aymeric Wibo <[email protected]>

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 * under sponsorship from the FreeBSD Foundation.

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 */

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#ifndef _AMDSMU_REG_H_

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#define	_AMDSMU_REG_H_

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#include <sys/types.h>

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/*

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 * TODO These are in common with amdtemp; should we find a way to factor these

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 * out?  Also, there are way more of these.  I couldn't find a centralized place

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 * which lists them though.

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 */

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#define PCI_DEVICEID_AMD_REMBRANDT_ROOT		0x14B5

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#define PCI_DEVICEID_AMD_PHOENIX_ROOT		0x14E8

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#define PCI_DEVICEID_AMD_STRIX_POINT_ROOT	0x14A4

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#define SMU_INDEX_ADDRESS	0xB8

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#define SMU_INDEX_DATA		0xBC

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#define SMU_PHYSBASE_ADDR_LO	0x13B102E8

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#define SMU_PHYSBASE_ADDR_HI	0x13B102EC

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#define SMU_MEM_SIZE		0x1000

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#define SMU_REG_SPACE_OFF	0x10000

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#define SMU_REG_MESSAGE		0x538

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#define SMU_REG_RESPONSE	0x980

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#define SMU_REG_ARGUMENT	0x9BC

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#define SMU_REG_IDLEMASK	0xD14

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enum amdsmu_res {

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	SMU_RES_WAIT		= 0x00,

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	SMU_RES_OK		= 0x01,

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	SMU_RES_REJECT_BUSY	= 0xFC,

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	SMU_RES_REJECT_PREREQ	= 0xFD,

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	SMU_RES_UNKNOWN		= 0xFE,

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	SMU_RES_FAILED		= 0xFF,

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};

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enum amdsmu_msg {

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	SMU_MSG_GETSMUVERSION		= 0x02,

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	SMU_MSG_LOG_GETDRAM_ADDR_HI	= 0x04,

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	SMU_MSG_LOG_GETDRAM_ADDR_LO	= 0x05,

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	SMU_MSG_LOG_START		= 0x06,

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	SMU_MSG_LOG_RESET		= 0x07,

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	SMU_MSG_LOG_DUMP_DATA		= 0x08,

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	SMU_MSG_GET_SUP_CONSTRAINTS	= 0x09,

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};

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/* XXX Copied from Linux struct smu_metrics. */

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struct amdsmu_metrics {

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	uint32_t table_version;

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	uint32_t hint_count;

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	uint32_t s0i3_last_entry_status;

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	uint32_t time_last_in_s0i2;

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	uint64_t time_last_entering_s0i3;

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	uint64_t total_time_entering_s0i3;

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	uint64_t time_last_resuming;

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	uint64_t total_time_resuming;

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	uint64_t time_last_in_s0i3;

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	uint64_t total_time_in_s0i3;

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	uint64_t time_last_in_sw_drips;

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	uint64_t total_time_in_sw_drips;

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	/*

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	 * This is how long each IP block was active for (us), i.e., blocking

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	 * entry to S0i3.  In Linux, these are called "timecondition_notmet_*".

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	 *

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	 * XXX Total active time for IP blocks seems to be buggy and reporting

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	 * garbage (at least on Phoenix), so it's disabled for now.  The last

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	 * active time for the USB4_0 IP block also seems to be buggy.

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	 */

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	uint64_t ip_block_last_active_time[32];

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#ifdef IP_BLOCK_TOTAL_ACTIVE_TIME

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	uint64_t ip_block_total_active_time[32];

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#endif

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} __attribute__((packed));

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#endif /* _AMDSMU_REG_H_ */

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