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// SPDX-License-Identifier: GPL-2.0-only
#ifndef __PCI_EFI_H_
#define __PCI_EFI_H_
#include <efi.h>
struct efi_pci_root_bridge_io_protocol;
struct efi_pci_io_protocol;
enum efi_pci_protocol_width {
EFI_PCI_WIDTH_U8,
EFI_PCI_WIDTH_U16,
EFI_PCI_WIDTH_U32,
EFI_PCI_WIDTH_U64,
EFI_PCI_WIDTH_FIFO_U8,
EFI_PCI_WIDTH_FIFO_U16,
EFI_PCI_WIDTH_FIFO_U32,
EFI_PCI_WIDTH_FIFO_U64,
EFI_PCI_WIDTH_FILL_U8,
EFI_PCI_WIDTH_FILL_U16,
EFI_PCI_WIDTH_FILL_U32,
EFI_PCI_WIDTH_FILL_U64,
EFI_PCI_WIDTH_MAX
};
#define EFI_PCI_IO_PASS_THROUGH_BAR 0xff
typedef efi_status_t (EFIAPI *efi_pci_root_bridge_io_protocol_io_mem) (
struct efi_pci_root_bridge_io_protocol *this,
enum efi_pci_protocol_width width,
u64 addr,
size_t count,
void *buf
);
typedef efi_status_t (EFIAPI *efi_pci_io_protocol_io_mem) (
struct efi_pci_io_protocol *this,
enum efi_pci_protocol_width width,
u8 bar,
u64 offset,
size_t count,
void *buf
);
struct efi_pci_root_bridge_io_protocol_access {
efi_pci_root_bridge_io_protocol_io_mem read;
efi_pci_root_bridge_io_protocol_io_mem write;
};
struct efi_pci_io_protocol_access {
efi_pci_io_protocol_io_mem read;
efi_pci_io_protocol_io_mem write;
};
#define EFI_PCI_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001
#define EFI_PCI_ATTRIBUTE_ISA_IO 0x0002
#define EFI_PCI_ATTRIBUTE_VGA_PALETTE_IO 0x0004
#define EFI_PCI_ATTRIBUTE_VGA_MEMORY 0x0008
#define EFI_PCI_ATTRIBUTE_VGA_IO 0x0010
#define EFI_PCI_ATTRIBUTE_IDE_PRIMARY_IO 0x0020
#define EFI_PCI_ATTRIBUTE_IDE_SECONDARY_IO 0x0040
#define EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080
#define EFI_PCI_ATTRIBUTE_IO 0x0100
#define EFI_PCI_ATTRIBUTE_MEMORY 0x0200
#define EFI_PCI_ATTRIBUTE_BUS_MASTER 0x0400
#define EFI_PCI_ATTRIBUTE_MEMORY_CACHED 0x0800
#define EFI_PCI_ATTRIBUTE_MEMORY_DISABLE 0x1000
#define EFI_PCI_ATTRIBUTE_EMBEDDED_DEVICE 0x2000
#define EFI_PCI_ATTRIBUTE_EMBEDDED_ROM 0x4000
#define EFI_PCI_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000
#define EFI_PCI_ATTRIBUTE_ISA_IO_16 0x10000
#define EFI_PCI_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000
#define EFI_PCI_ATTRIBUTE_VGA_IO_16 0x40000
typedef efi_status_t (EFIAPI *efi_pci_root_bridge_io_protocol_poll_io_mem) (
struct efi_pci_root_bridge_io_protocol *this,
enum efi_pci_protocol_width width,
u64 address,
u64 mask,
u64 value,
u64 delay,
u64 *result
);
typedef efi_status_t (EFIAPI *efi_pci_io_protocol_poll_io_mem) (
struct efi_pci_io_protocol *this,
enum efi_pci_protocol_width width,
u8 bar,
u64 offset,
u64 mask,
u64 value,
u64 delay,
u64 *result
);
enum efi_pci_root_bridge_io_protocol_operation {
EFI_PCI_ROOT_BRIGE_IO_OP_BUS_MASTER_READ,
EFI_PCI_ROOT_BRIGE_IO_OP_BUS_MASTER_WRITE,
EFI_PCI_ROOT_BRIGE_IO_OP_BUS_MASTER_COMMON_BUFFER,
EFI_PCI_ROOT_BRIGE_IO_OP_BUS_MASTER_READ64,
EFI_PCI_ROOT_BRIGE_IO_OP_BUS_MASTER_WRITE64,
EFI_PCI_ROOT_BRIGE_IO_OP_BUS_MASTER_COMMON_BUFFER64,
EFI_PCI_ROOT_BRIGE_IO_OP_MAX
};
enum efi_pci_io_protocol_operation {
EFI_PCI_IO_OP_BUS_MASTER_READ,
EFI_PCI_IO_OP_BUS_MASTER_WRITE,
EFI_PCI_IO_OP_BUS_MASTER_COMMON_BUFFER,
EFI_PCI_IO_OP_MAX
};
typedef efi_status_t (EFIAPI *efi_pci_root_bridge_io_protocol_copy_mem) (
struct efi_pci_root_bridge_io_protocol *this,
enum efi_pci_protocol_width width,
u64 dst,
u64 src,
size_t count
);
typedef efi_status_t (EFIAPI *efi_pci_io_protocol_copy_mem) (
struct efi_pci_io_protocol *this,
enum efi_pci_protocol_width width,
u8 dst_bar,
u64 dst_offset,
u8 src_bar,
u64 src_offset,
size_t count
);
typedef efi_status_t (EFIAPI *efi_pci_root_bridge_io_protocol_map) (
struct efi_pci_root_bridge_io_protocol *this,
enum efi_pci_root_bridge_io_protocol_operation operation,
void *hostaddr,
size_t *nbytes,
efi_physical_addr_t *devaddr,
void **mapping
);
typedef efi_status_t (EFIAPI *efi_pci_io_protocol_map) (
struct efi_pci_io_protocol *this,
enum efi_pci_io_protocol_operation operation,
void *hostaddr,
size_t *nbytes,
efi_physical_addr_t *devaddr,
void **mapping
);
typedef efi_status_t (EFIAPI *efi_pci_root_bridge_io_protocol_unmap) (
struct efi_pci_root_bridge_io_protocol *this,
void *mapping
);
typedef efi_status_t (EFIAPI *efi_pci_io_protocol_unmap) (
struct efi_pci_io_protocol *this,
void *mapping
);
typedef efi_status_t (EFIAPI *efi_pci_root_bridge_io_protocol_allocate_buffer) (
struct efi_pci_root_bridge_io_protocol *this,
enum efi_allocate_type alloctype,
enum efi_memory_type memtype,
size_t npages,
void **hostaddr,
u64 attrs
);
typedef efi_status_t (EFIAPI *efi_pci_io_protocol_allocate_buffer) (
struct efi_pci_io_protocol *this,
enum efi_allocate_type alloctype,
enum efi_memory_type memtype,
size_t npages,
void **hostaddr,
u64 attrs
);
typedef efi_status_t (EFIAPI *efi_pci_root_bridge_io_protocol_free_buffer) (
struct efi_pci_root_bridge_io_protocol *this,
size_t npages,
void *hostaddr
);
typedef efi_status_t (EFIAPI *efi_pci_io_protocol_free_buffer) (
struct efi_pci_io_protocol *this,
size_t npages,
void *hostaddr
);
typedef efi_status_t (EFIAPI *efi_pci_root_bridge_io_protocol_flush) (
struct efi_pci_root_bridge_io_protocol *this
);
typedef efi_status_t (EFIAPI *efi_pci_io_protocol_flush) (
struct efi_pci_io_protocol *this
);
typedef efi_status_t (EFIAPI *efi_pci_io_protocol_get_location) (
struct efi_pci_io_protocol *this,
size_t *segmentno,
size_t *busno,
size_t *deveno,
size_t *funcno
);
enum efi_io_protocol_attribute_operation {
PCI_IO_ATTR_OP_GET,
PCI_IO_ATTR_OP_SET,
PCI_IO_ATTR_OP_ENABLE,
PCI_IO_ATTR_OP_DISABLE,
PCI_IO_ATTR_OP_SUPPORTED,
PCI_IO_ATTR_OP_MAX,
};
typedef efi_status_t (EFIAPI *efi_pci_io_protocol_attributes) (
struct efi_pci_io_protocol *this,
enum efi_io_protocol_attribute_operation operation,
u64 attrs,
u64 *result
);
typedef efi_status_t (EFIAPI *efi_pci_root_bridge_io_protocol_get_attributes) (
struct efi_pci_root_bridge_io_protocol *this,
u64 *supports,
u64 *attrs
);
typedef efi_status_t (EFIAPI *efi_pci_io_protocol_get_bar_attributes) (
struct efi_pci_io_protocol *this,
u8 bar,
u64 *supports,
void **resources
);
typedef efi_status_t (EFIAPI *efi_pci_root_bridge_io_protocol_set_attributes) (
struct efi_pci_root_bridge_io_protocol *this,
u64 attrs,
u64 *resource_base,
u64 *resource_len
);
typedef efi_status_t (EFIAPI *efi_pci_io_protocol_set_bar_attributes) (
struct efi_pci_io_protocol *this,
u64 attrs,
u8 bar,
u64 *offset,
u64 *len
);
typedef efi_status_t (EFIAPI *efi_pci_root_bridge_io_protocol_configuration) (
struct efi_pci_root_bridge_io_protocol *this,
void **resources
);
typedef efi_status_t (EFIAPI *efi_pci_io_protocol_config) (
struct efi_pci_io_protocol *this,
enum efi_pci_protocol_width width,
u32 offset,
size_t count,
void *buffer
);
struct efi_pci_io_protocol_config_access {
efi_pci_io_protocol_config read;
efi_pci_io_protocol_config write;
};
struct __packed efi_acpi_resource {
#define ACPI_RESOURCE_DESC_TAG 0x8A
#define ACPI_RESOURCE_END_TAG 0x79
u8 asd; /* 0x8A */
u16 len; /* 0x2B */
#define ACPI_RESOURCE_TYPE_MEM 0
#define ACPI_RESOURCE_TYPE_IO 1
#define ACPI_RESOURCE_TYPE_BUSNO 2
u8 restype;
u8 genflags;
#define ACPI_RESOURCE_TYPFLAG_TTP_MASK 0b00100000
#define ACPI_RESOURCE_TYPFLAG_MTP_MASK 0b00011000
#define ACPI_RESOURCE_TYPFLAG_MTP_MEM 0
#define ACPI_RESOURCE_TYPFLAG_MTP_RESERVED 1
#define ACPI_RESOURCE_TYPFLAG_MTP_ACPI 2
#define ACPI_RESOURCE_TYPFLAG_MTP_NVS 3
#define ACPI_RESOURCE_TYPFLAG_MEM_MASK 0b00000110
#define ACPI_RESOURCE_TYPFLAG_MEM_NONCACHEABLE 0
#define ACPI_RESOURCE_TYPFLAG_MEM_CACHEABLE 1
#define ACPI_RESOURCE_TYPFLAG_MEM_WC 2
#define ACPI_RESOURCE_TYPFLAG_MEM_PREF 3
#define ACPI_RESOURCE_TYPFLAG_RW_MASK 0b00000001
u8 typflags;
u64 addr_granularity;
u64 addr_min;
u64 addr_max;
u64 addr_xlate_off;
u64 addr_len;
};
struct efi_pci_root_bridge_io_protocol {
efi_handle_t parent_handle;
efi_pci_root_bridge_io_protocol_poll_io_mem poll_mem;
efi_pci_root_bridge_io_protocol_poll_io_mem poll_io;
struct efi_pci_root_bridge_io_protocol_access mem;
struct efi_pci_root_bridge_io_protocol_access io;
struct efi_pci_root_bridge_io_protocol_access pci;
efi_pci_root_bridge_io_protocol_copy_mem copy_mem;
efi_pci_root_bridge_io_protocol_map map;
efi_pci_root_bridge_io_protocol_unmap unmap;
efi_pci_root_bridge_io_protocol_allocate_buffer allocate_buffer;
efi_pci_root_bridge_io_protocol_free_buffer free_buffer;
efi_pci_root_bridge_io_protocol_flush flush;
efi_pci_root_bridge_io_protocol_get_attributes get_attributes;
efi_pci_root_bridge_io_protocol_set_attributes set_attributes;
efi_pci_root_bridge_io_protocol_configuration configuration;
u32 segmentno;
};
struct efi_pci_io_protocol {
efi_pci_io_protocol_poll_io_mem poll_mem;
efi_pci_io_protocol_poll_io_mem poll_io;
struct efi_pci_io_protocol_access mem;
struct efi_pci_io_protocol_access io;
struct efi_pci_io_protocol_access pci;
efi_pci_io_protocol_copy_mem copy_mem;
efi_pci_io_protocol_map map;
efi_pci_io_protocol_unmap unmap;
efi_pci_io_protocol_allocate_buffer allocate_buffer;
efi_pci_io_protocol_free_buffer free_buffer;
efi_pci_io_protocol_flush flush;
efi_pci_io_protocol_get_location get_location;
efi_pci_io_protocol_attributes attributes;
efi_pci_io_protocol_get_bar_attributes get_bar_attributes;
efi_pci_io_protocol_set_bar_attributes set_bar_attributes;
u64 rom_size;
void *rom_image;
};
#define EFI_PCI_ADDRESS(bus, dev, func, reg) \
(u64) ( \
(((size_t) bus) << 24) | \
(((size_t) dev) << 16) | \
(((size_t) func) << 8) | \
(((size_t) (reg)) < 256 ? ((size_t) (reg)) : ((u64)(reg)) << 32))
#endif
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