1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Based on acpi.c from coreboot 4 * 5 * Copyright (C) 2015, Saket Sinha <saket.sinha89@gmail.com> 6 * Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com> 7 */ 8 9 #ifndef __ASM_ACPI_TABLE_H__ 10 #define __ASM_ACPI_TABLE_H__ 11 12 #ifndef __ACPI__ 13 14 #include <pci.h> 15 16 struct acpi_facs; 17 struct acpi_fadt; 18 struct acpi_global_nvs; 19 struct acpi_madt_ioapic; 20 struct acpi_madt_irqoverride; 21 struct acpi_madt_lapic_nmi; 22 struct acpi_mcfg_mmconfig; 23 struct acpi_table_header; 24 25 /* These can be used by the target port */ 26 27 int acpi_create_madt_lapics(void *current); 28 int acpi_create_madt_ioapic(struct acpi_madt_ioapic *ioapic, u8 id, 29 u32 addr, u32 gsi_base); 30 int acpi_create_madt_irqoverride(struct acpi_madt_irqoverride *irqoverride, 31 u8 bus, u8 source, u32 gsirq, u16 flags); 32 int acpi_create_madt_lapic_nmi(struct acpi_madt_lapic_nmi *lapic_nmi, 33 u8 cpu, u16 flags, u8 lint); 34 35 /** 36 * acpi_write_hpet() - Write out a HPET table 37 * 38 * Write out the table for High-Precision Event Timers 39 * 40 * @ctx: Current ACPI context 41 * Return: 0 if OK, -ve on error 42 */ 43 int acpi_write_hpet(struct acpi_ctx *ctx); 44 45 /** 46 * acpi_create_gnvs() - Create a GNVS (Global Non Volatile Storage) table 47 * 48 * @gnvs: Table to fill in 49 * Return: 0 if OK, -ve on error 50 */ 51 int acpi_create_gnvs(struct acpi_global_nvs *gnvs); 52 53 /** 54 * arch_read_sci_irq_select() - Read the system-control interrupt number 55 * 56 * @returns value of IRQ register in the PMC 57 */ 58 int arch_read_sci_irq_select(void); 59 60 /** 61 * arch_write_sci_irq_select() - Set the system-control interrupt number 62 * 63 * @scis: New value for IRQ register in the PMC 64 */ 65 int arch_write_sci_irq_select(uint scis); 66 67 /** 68 * arch_madt_sci_irq_polarity() - Return the priority to use for the MADT 69 * 70 * @sci: System-control interrupt number 71 * Return: priority to use (MP_IRQ_POLARITY_...) 72 */ 73 int arch_madt_sci_irq_polarity(int sci); 74 75 /** 76 * acpi_create_dmar_drhd() - Create a table for DMA remapping with the IOMMU 77 * 78 * See here for the specification 79 * https://software.intel.com/sites/default/files/managed/c5/15/vt-directed-io-spec.pdf 80 * 81 * @ctx: ACPI context pointer 82 * @flags: (DRHD_INCLUDE_...) 83 * @segment: PCI segment asscociated with this unit 84 * @bar: Base address of remapping hardware register-set for this unit 85 */ 86 void acpi_create_dmar_drhd(struct acpi_ctx *ctx, uint flags, uint segment, 87 u64 bar); 88 89 /** 90 * acpi_create_dmar_rmrr() - Set up an RMRR 91 * 92 * This sets up a Reserved-Memory Region Reporting structure, used to allow 93 * DMA to regions used by devices that the BIOS controls. 94 * 95 * @ctx: ACPI context pointer 96 * @segment: PCI segment asscociated with this unit 97 * @bar: Base address of mapping 98 * @limit: End address of mapping 99 */ 100 void acpi_create_dmar_rmrr(struct acpi_ctx *ctx, uint segment, u64 bar, 101 u64 limit); 102 103 /** 104 * acpi_dmar_drhd_fixup() - Set the length of an DRHD 105 * 106 * This sets the DRHD length field based on the current ctx->current 107 * 108 * @ctx: ACPI context pointer 109 * @base: Address of the start of the DRHD 110 */ 111 void acpi_dmar_drhd_fixup(struct acpi_ctx *ctx, void *base); 112 113 /** 114 * acpi_dmar_rmrr_fixup() - Set the length of an RMRR 115 * 116 * This sets the RMRR length field based on the current ctx->current 117 * 118 * @ctx: ACPI context pointer 119 * @base: Address of the start of the RMRR 120 */ 121 void acpi_dmar_rmrr_fixup(struct acpi_ctx *ctx, void *base); 122 123 /** 124 * acpi_create_dmar_ds_pci() - Set up a DMAR scope for a PCI device 125 * 126 * @ctx: ACPI context pointer 127 * @bdf: PCI device to add 128 * Return: length of mapping in bytes 129 */ 130 int acpi_create_dmar_ds_pci(struct acpi_ctx *ctx, pci_dev_t bdf); 131 132 /** 133 * acpi_create_dmar_ds_pci_br() - Set up a DMAR scope for a PCI bridge 134 * 135 * This is used to provide a mapping for a PCI bridge 136 * 137 * @ctx: ACPI context pointer 138 * @bdf: PCI device to add 139 * Return: length of mapping in bytes 140 */ 141 int acpi_create_dmar_ds_pci_br(struct acpi_ctx *ctx, pci_dev_t bdf); 142 143 /** 144 * acpi_create_dmar_ds_ioapic() - Set up a DMAR scope for an IOAPIC device 145 * 146 * @ctx: ACPI context pointer 147 * @enumeration_id: Enumeration ID (typically 2) 148 * @bdf: PCI device to add 149 * Return: length of mapping in bytes 150 */ 151 int acpi_create_dmar_ds_ioapic(struct acpi_ctx *ctx, uint enumeration_id, 152 pci_dev_t bdf); 153 154 /** 155 * acpi_create_dmar_ds_msi_hpet() - Set up a DMAR scope for an HPET 156 * 157 * Sets up a scope for a High-Precision Event Timer that supports 158 * Message-Signalled Interrupts 159 * 160 * @ctx: ACPI context pointer 161 * @enumeration_id: Enumeration ID (typically 0) 162 * @bdf: PCI device to add 163 * Return: length of mapping in bytes 164 */ 165 int acpi_create_dmar_ds_msi_hpet(struct acpi_ctx *ctx, uint enumeration_id, 166 pci_dev_t bdf); 167 168 /** 169 * intel_acpi_fill_fadt() - Set up the contents of the FADT 170 * 171 * This sets up parts of the Fixed ACPI Description Table that are common to 172 * Intel chips 173 * 174 * @fadt: Pointer to place to put FADT 175 */ 176 void intel_acpi_fill_fadt(struct acpi_fadt *fadt); 177 178 #endif /* !__ACPI__ */ 179 180 #endif /* __ASM_ACPI_TABLE_H__ */ 181