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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/dev/amdsmu/amdsmu.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_H_

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#define	_AMDSMU_H_

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#include <sys/param.h>

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#include <sys/bus.h>

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#include <sys/kernel.h>

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#include <machine/bus.h>

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#include <x86/cputypes.h>

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#include <dev/amdsmu/amdsmu_reg.h>

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#define SMU_RES_READ_PERIOD_US	50

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#define SMU_RES_READ_MAX	20000

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static const struct amdsmu_product {

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	uint16_t	amdsmu_vendorid;

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	uint16_t	amdsmu_deviceid;

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} amdsmu_products[] = {

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	{ CPU_VENDOR_AMD,	PCI_DEVICEID_AMD_REMBRANDT_ROOT },

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	{ CPU_VENDOR_AMD,	PCI_DEVICEID_AMD_PHOENIX_ROOT },

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	{ CPU_VENDOR_AMD,	PCI_DEVICEID_AMD_STRIX_POINT_ROOT },

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};

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static const char *const amdsmu_ip_blocks_names[] = {

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    "DISPLAY",

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    "CPU",

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    "GFX",

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    "VDD",

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    "ACP",

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    "VCN",

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    "ISP",

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    "NBIO",

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    "DF",

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    "USB3_0",

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    "USB3_1",

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    "LAPIC",

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    "USB3_2",

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    "USB3_3",

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    "USB3_4",

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    "USB4_0",

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    "USB4_1",

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    "MPM",

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    "JPEG",

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    "IPU",

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    "UMSCH",

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    "VPE",

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};

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CTASSERT(nitems(amdsmu_ip_blocks_names) <= 32);

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struct amdsmu_softc {

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	struct sysctl_ctx_list	*sysctlctx;

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	struct sysctl_oid	*sysctlnode;

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	struct resource		*res;

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	bus_space_tag_t 	bus_tag;

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	bus_space_handle_t	smu_space;

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	bus_space_handle_t	reg_space;

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	uint8_t			smu_program;

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	uint8_t			smu_maj, smu_min, smu_rev;

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	uint32_t		active_ip_blocks;

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	struct sysctl_oid	*ip_blocks_sysctlnode;

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	size_t			ip_block_count;

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	struct sysctl_oid	*ip_block_sysctlnodes[nitems(amdsmu_ip_blocks_names)];

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	bool			ip_blocks_active[nitems(amdsmu_ip_blocks_names)];

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	bus_space_handle_t	metrics_space;

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	struct amdsmu_metrics	metrics;

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	uint32_t		idlemask;

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};

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static inline uint32_t

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amdsmu_read4(const struct amdsmu_softc *sc, bus_size_t reg)

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{

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	return (bus_space_read_4(sc->bus_tag, sc->reg_space, reg));

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}

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static inline void

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amdsmu_write4(const struct amdsmu_softc *sc, bus_size_t reg, uint32_t val)

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{

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	bus_space_write_4(sc->bus_tag, sc->reg_space, reg, val);

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}

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#endif /* _AMDSMU_H_ */

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