/* SPDX-License-Identifier: GPL-2.0+ */ /* * Based on acpi.c from coreboot * * Copyright (C) 2015, Saket Sinha * Copyright (C) 2016, Bin Meng */ #ifndef __ASM_ACPI_TABLE_H__ #define __ASM_ACPI_TABLE_H__ #ifndef __ACPI__ #include struct acpi_facs; struct acpi_fadt; struct acpi_global_nvs; struct acpi_madt_ioapic; struct acpi_madt_irqoverride; struct acpi_madt_lapic_nmi; struct acpi_mcfg_mmconfig; struct acpi_table_header; /* These can be used by the target port */ void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs, void *dsdt); int acpi_create_madt_lapics(u32 current); int acpi_create_madt_ioapic(struct acpi_madt_ioapic *ioapic, u8 id, u32 addr, u32 gsi_base); int acpi_create_madt_irqoverride(struct acpi_madt_irqoverride *irqoverride, u8 bus, u8 source, u32 gsirq, u16 flags); int acpi_create_madt_lapic_nmi(struct acpi_madt_lapic_nmi *lapic_nmi, u8 cpu, u16 flags, u8 lint); u32 acpi_fill_madt(u32 current); int acpi_create_mcfg_mmconfig(struct acpi_mcfg_mmconfig *mmconfig, u32 base, u16 seg_nr, u8 start, u8 end); /** * acpi_write_hpet() - Write out a HPET table * * Write out the table for High-Precision Event Timers * * @ctx: Current ACPI context * Return: 0 if OK, -ve on error */ int acpi_write_hpet(struct acpi_ctx *ctx); /** * acpi_write_dbg2_pci_uart() - Write out a DBG2 table * * @ctx: Current ACPI context * @dev: Debug UART device to describe * @access_size: Access size for UART (e.g. ACPI_ACCESS_SIZE_DWORD_ACCESS) * Return: 0 if OK, -ve on error */ int acpi_write_dbg2_pci_uart(struct acpi_ctx *ctx, struct udevice *dev, uint access_size); /** * acpi_create_gnvs() - Create a GNVS (Global Non Volatile Storage) table * * @gnvs: Table to fill in * Return: 0 if OK, -ve on error */ int acpi_create_gnvs(struct acpi_global_nvs *gnvs); /** * acpi_get_rsdp_addr() - get ACPI RSDP table address * * This routine returns the ACPI RSDP table address in the system memory. * * @return: ACPI RSDP table address */ ulong acpi_get_rsdp_addr(void); /** * arch_read_sci_irq_select() - Read the system-control interrupt number * * @returns value of IRQ register in the PMC */ int arch_read_sci_irq_select(void); /** * arch_write_sci_irq_select() - Set the system-control interrupt number * * @scis: New value for IRQ register in the PMC */ int arch_write_sci_irq_select(uint scis); /** * arch_madt_sci_irq_polarity() - Return the priority to use for the MADT * * @sci: System-control interrupt number * Return: priority to use (MP_IRQ_POLARITY_...) */ int arch_madt_sci_irq_polarity(int sci); /** * acpi_create_dmar_drhd() - Create a table for DMA remapping with the IOMMU * * See here for the specification * https://software.intel.com/sites/default/files/managed/c5/15/vt-directed-io-spec.pdf * * @ctx: ACPI context pointer * @flags: (DRHD_INCLUDE_...) * @segment: PCI segment asscociated with this unit * @bar: Base address of remapping hardware register-set for this unit */ void acpi_create_dmar_drhd(struct acpi_ctx *ctx, uint flags, uint segment, u64 bar); /** * acpi_create_dmar_rmrr() - Set up an RMRR * * This sets up a Reserved-Memory Region Reporting structure, used to allow * DMA to regions used by devices that the BIOS controls. * * @ctx: ACPI context pointer * @segment: PCI segment asscociated with this unit * @bar: Base address of mapping * @limit: End address of mapping */ void acpi_create_dmar_rmrr(struct acpi_ctx *ctx, uint segment, u64 bar, u64 limit); /** * acpi_dmar_drhd_fixup() - Set the length of an DRHD * * This sets the DRHD length field based on the current ctx->current * * @ctx: ACPI context pointer * @base: Address of the start of the DRHD */ void acpi_dmar_drhd_fixup(struct acpi_ctx *ctx, void *base); /** * acpi_dmar_rmrr_fixup() - Set the length of an RMRR * * This sets the RMRR length field based on the current ctx->current * * @ctx: ACPI context pointer * @base: Address of the start of the RMRR */ void acpi_dmar_rmrr_fixup(struct acpi_ctx *ctx, void *base); /** * acpi_create_dmar_ds_pci() - Set up a DMAR scope for a PCI device * * @ctx: ACPI context pointer * @bdf: PCI device to add * Return: length of mapping in bytes */ int acpi_create_dmar_ds_pci(struct acpi_ctx *ctx, pci_dev_t bdf); /** * acpi_create_dmar_ds_pci_br() - Set up a DMAR scope for a PCI bridge * * This is used to provide a mapping for a PCI bridge * * @ctx: ACPI context pointer * @bdf: PCI device to add * Return: length of mapping in bytes */ int acpi_create_dmar_ds_pci_br(struct acpi_ctx *ctx, pci_dev_t bdf); /** * acpi_create_dmar_ds_ioapic() - Set up a DMAR scope for an IOAPIC device * * @ctx: ACPI context pointer * @enumeration_id: Enumeration ID (typically 2) * @bdf: PCI device to add * Return: length of mapping in bytes */ int acpi_create_dmar_ds_ioapic(struct acpi_ctx *ctx, uint enumeration_id, pci_dev_t bdf); /** * acpi_create_dmar_ds_msi_hpet() - Set up a DMAR scope for an HPET * * Sets up a scope for a High-Precision Event Timer that supports * Message-Signalled Interrupts * * @ctx: ACPI context pointer * @enumeration_id: Enumeration ID (typically 0) * @bdf: PCI device to add * Return: length of mapping in bytes */ int acpi_create_dmar_ds_msi_hpet(struct acpi_ctx *ctx, uint enumeration_id, pci_dev_t bdf); /** * acpi_fadt_common() - Handle common parts of filling out an FADT * * This sets up the Fixed ACPI Description Table * * @fadt: Pointer to place to put FADT * @facs: Pointer to the FACS * @dsdt: Pointer to the DSDT */ void acpi_fadt_common(struct acpi_fadt *fadt, struct acpi_facs *facs, void *dsdt); /** * intel_acpi_fill_fadt() - Set up the contents of the FADT * * This sets up parts of the Fixed ACPI Description Table that are common to * Intel chips * * @fadt: Pointer to place to put FADT */ void intel_acpi_fill_fadt(struct acpi_fadt *fadt); #endif /* !__ACPI__ */ #endif /* __ASM_ACPI_TABLE_H__ */