1 /* 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2025 The FreeBSD Foundation 5 * 6 * This software was developed by Aymeric Wibo <obiwac@freebsd.org> 7 * under sponsorship from the FreeBSD Foundation. 8 */ 9 #ifndef _AMDSMU_H_ 10 #define _AMDSMU_H_ 11 12 #include <sys/param.h> 13 #include <sys/bus.h> 14 #include <sys/kernel.h> 15 #include <machine/bus.h> 16 #include <x86/cputypes.h> 17 18 #include <dev/amdsmu/amdsmu_reg.h> 19 20 #define SMU_RES_READ_PERIOD_US 50 21 #define SMU_RES_READ_MAX 20000 22 23 static const struct amdsmu_product { 24 uint16_t amdsmu_vendorid; 25 uint16_t amdsmu_deviceid; 26 } amdsmu_products[] = { 27 { CPU_VENDOR_AMD, PCI_DEVICEID_AMD_REMBRANDT_ROOT }, 28 { CPU_VENDOR_AMD, PCI_DEVICEID_AMD_PHOENIX_ROOT }, 29 { CPU_VENDOR_AMD, PCI_DEVICEID_AMD_STRIX_POINT_ROOT }, 30 }; 31 32 static const char *const amdsmu_ip_blocks_names[] = { 33 "DISPLAY", 34 "CPU", 35 "GFX", 36 "VDD", 37 "ACP", 38 "VCN", 39 "ISP", 40 "NBIO", 41 "DF", 42 "USB3_0", 43 "USB3_1", 44 "LAPIC", 45 "USB3_2", 46 "USB3_3", 47 "USB3_4", 48 "USB4_0", 49 "USB4_1", 50 "MPM", 51 "JPEG", 52 "IPU", 53 "UMSCH", 54 "VPE", 55 }; 56 57 CTASSERT(nitems(amdsmu_ip_blocks_names) <= 32); 58 59 struct amdsmu_softc { 60 struct sysctl_ctx_list *sysctlctx; 61 struct sysctl_oid *sysctlnode; 62 63 struct resource *res; 64 bus_space_tag_t bus_tag; 65 66 bus_space_handle_t smu_space; 67 bus_space_handle_t reg_space; 68 69 uint8_t smu_program; 70 uint8_t smu_maj, smu_min, smu_rev; 71 72 uint32_t active_ip_blocks; 73 struct sysctl_oid *ip_blocks_sysctlnode; 74 size_t ip_block_count; 75 struct sysctl_oid *ip_block_sysctlnodes[nitems(amdsmu_ip_blocks_names)]; 76 bool ip_blocks_active[nitems(amdsmu_ip_blocks_names)]; 77 78 bus_space_handle_t metrics_space; 79 struct amdsmu_metrics metrics; 80 uint32_t idlemask; 81 }; 82 83 static inline uint32_t 84 amdsmu_read4(const struct amdsmu_softc *sc, bus_size_t reg) 85 { 86 return (bus_space_read_4(sc->bus_tag, sc->reg_space, reg)); 87 } 88 89 static inline void 90 amdsmu_write4(const struct amdsmu_softc *sc, bus_size_t reg, uint32_t val) 91 { 92 bus_space_write_4(sc->bus_tag, sc->reg_space, reg, val); 93 } 94 95 #endif /* _AMDSMU_H_ */ 96