[linux-block.git] / drivers / firmware / efi / libstub / efistub.h

/* SPDX-License-Identifier: GPL-2.0 */

#ifndef _DRIVERS_FIRMWARE_EFI_EFISTUB_H
#define _DRIVERS_FIRMWARE_EFI_EFISTUB_H

/* error code which can't be mistaken for valid address */
#define EFI_ERROR	(~0UL)

/*
 * __init annotations should not be used in the EFI stub, since the code is
 * either included in the decompressor (x86, ARM) where they have no effect,
 * or the whole stub is __init annotated at the section level (arm64), by
 * renaming the sections, in which case the __init annotation will be
 * redundant, and will result in section names like .init.init.text, and our
 * linker script does not expect that.
 */
#undef __init

/*
 * Allow the platform to override the allocation granularity: this allows
 * systems that have the capability to run with a larger page size to deal
 * with the allocations for initrd and fdt more efficiently.
 */
#ifndef EFI_ALLOC_ALIGN
#define EFI_ALLOC_ALIGN		EFI_PAGE_SIZE
#endif

extern bool __pure nochunk(void);
extern bool __pure nokaslr(void);
extern bool __pure noinitrd(void);
extern bool __pure is_quiet(void);
extern bool __pure novamap(void);

extern const efi_system_table_t *efi_system_table;

#ifndef efi_bs_call
#define efi_bs_call(func, ...)	efi_system_table->boottime->func(__VA_ARGS__)
#endif
#ifndef efi_rt_call
#define efi_rt_call(func, ...)	efi_system_table->runtime->func(__VA_ARGS__)
#endif
#ifndef efi_is_native
#define efi_is_native()		(true)
#endif
#ifndef efi_table_attr
#define efi_table_attr(inst, attr)	(inst->attr)
#endif
#ifndef efi_call_proto
#define efi_call_proto(inst, func, ...) inst->func(inst, ##__VA_ARGS__)
#endif

#define pr_efi(msg)		do {			\
	if (!is_quiet()) efi_printk("EFI stub: "msg);	\
} while (0)

#define pr_efi_err(msg) efi_printk("EFI stub: ERROR: "msg)

/* Helper macros for the usual case of using simple C variables: */
#ifndef fdt_setprop_inplace_var
#define fdt_setprop_inplace_var(fdt, node_offset, name, var) \
	fdt_setprop_inplace((fdt), (node_offset), (name), &(var), sizeof(var))
#endif

#ifndef fdt_setprop_var
#define fdt_setprop_var(fdt, node_offset, name, var) \
	fdt_setprop((fdt), (node_offset), (name), &(var), sizeof(var))
#endif

#define get_efi_var(name, vendor, ...)				\
	efi_rt_call(get_variable, (efi_char16_t *)(name),	\
		    (efi_guid_t *)(vendor), __VA_ARGS__)

#define set_efi_var(name, vendor, ...)				\
	efi_rt_call(set_variable, (efi_char16_t *)(name),	\
		    (efi_guid_t *)(vendor), __VA_ARGS__)

#define efi_get_handle_at(array, idx)					\
	(efi_is_native() ? (array)[idx] 				\
		: (efi_handle_t)(unsigned long)((u32 *)(array))[idx])

#define efi_get_handle_num(size)					\
	((size) / (efi_is_native() ? sizeof(efi_handle_t) : sizeof(u32)))

#define for_each_efi_handle(handle, array, size, i)			\
	for (i = 0;							\
	     i < efi_get_handle_num(size) &&				\
		((handle = efi_get_handle_at((array), i)) || true);	\
	     i++)

/*
 * Allocation types for calls to boottime->allocate_pages.
 */
#define EFI_ALLOCATE_ANY_PAGES		0
#define EFI_ALLOCATE_MAX_ADDRESS	1
#define EFI_ALLOCATE_ADDRESS		2
#define EFI_MAX_ALLOCATE_TYPE		3

/*
 * The type of search to perform when calling boottime->locate_handle
 */
#define EFI_LOCATE_ALL_HANDLES			0
#define EFI_LOCATE_BY_REGISTER_NOTIFY		1
#define EFI_LOCATE_BY_PROTOCOL			2

struct efi_boot_memmap {
	efi_memory_desc_t	**map;
	unsigned long		*map_size;
	unsigned long		*desc_size;
	u32			*desc_ver;
	unsigned long		*key_ptr;
	unsigned long		*buff_size;
};

typedef struct efi_generic_dev_path efi_device_path_protocol_t;

/*
 * EFI Boot Services table
 */
union efi_boot_services {
	struct {
		efi_table_hdr_t hdr;
		void *raise_tpl;
		void *restore_tpl;
		efi_status_t (__efiapi *allocate_pages)(int, int, unsigned long,
							efi_physical_addr_t *);
		efi_status_t (__efiapi *free_pages)(efi_physical_addr_t,
						    unsigned long);
		efi_status_t (__efiapi *get_memory_map)(unsigned long *, void *,
							unsigned long *,
							unsigned long *, u32 *);
		efi_status_t (__efiapi *allocate_pool)(int, unsigned long,
						       void **);
		efi_status_t (__efiapi *free_pool)(void *);
		void *create_event;
		void *set_timer;
		void *wait_for_event;
		void *signal_event;
		void *close_event;
		void *check_event;
		void *install_protocol_interface;
		void *reinstall_protocol_interface;
		void *uninstall_protocol_interface;
		efi_status_t (__efiapi *handle_protocol)(efi_handle_t,
							 efi_guid_t *, void **);
		void *__reserved;
		void *register_protocol_notify;
		efi_status_t (__efiapi *locate_handle)(int, efi_guid_t *,
						       void *, unsigned long *,
						       efi_handle_t *);
		efi_status_t (__efiapi *locate_device_path)(efi_guid_t *,
							    efi_device_path_protocol_t **,
							    efi_handle_t *);
		efi_status_t (__efiapi *install_configuration_table)(efi_guid_t *,
								     void *);
		void *load_image;
		void *start_image;
		efi_status_t __noreturn (__efiapi *exit)(efi_handle_t,
							 efi_status_t,
							 unsigned long,
							 efi_char16_t *);
		void *unload_image;
		efi_status_t (__efiapi *exit_boot_services)(efi_handle_t,
							    unsigned long);
		void *get_next_monotonic_count;
		void *stall;
		void *set_watchdog_timer;
		void *connect_controller;
		efi_status_t (__efiapi *disconnect_controller)(efi_handle_t,
							       efi_handle_t,
							       efi_handle_t);
		void *open_protocol;
		void *close_protocol;
		void *open_protocol_information;
		void *protocols_per_handle;
		void *locate_handle_buffer;
		efi_status_t (__efiapi *locate_protocol)(efi_guid_t *, void *,
							 void **);
		void *install_multiple_protocol_interfaces;
		void *uninstall_multiple_protocol_interfaces;
		void *calculate_crc32;
		void *copy_mem;
		void *set_mem;
		void *create_event_ex;
	};
	struct {
		efi_table_hdr_t hdr;
		u32 raise_tpl;
		u32 restore_tpl;
		u32 allocate_pages;
		u32 free_pages;
		u32 get_memory_map;
		u32 allocate_pool;
		u32 free_pool;
		u32 create_event;
		u32 set_timer;
		u32 wait_for_event;
		u32 signal_event;
		u32 close_event;
		u32 check_event;
		u32 install_protocol_interface;
		u32 reinstall_protocol_interface;
		u32 uninstall_protocol_interface;
		u32 handle_protocol;
		u32 __reserved;
		u32 register_protocol_notify;
		u32 locate_handle;
		u32 locate_device_path;
		u32 install_configuration_table;
		u32 load_image;
		u32 start_image;
		u32 exit;
		u32 unload_image;
		u32 exit_boot_services;
		u32 get_next_monotonic_count;
		u32 stall;
		u32 set_watchdog_timer;
		u32 connect_controller;
		u32 disconnect_controller;
		u32 open_protocol;
		u32 close_protocol;
		u32 open_protocol_information;
		u32 protocols_per_handle;
		u32 locate_handle_buffer;
		u32 locate_protocol;
		u32 install_multiple_protocol_interfaces;
		u32 uninstall_multiple_protocol_interfaces;
		u32 calculate_crc32;
		u32 copy_mem;
		u32 set_mem;
		u32 create_event_ex;
	} mixed_mode;
};

typedef union efi_uga_draw_protocol efi_uga_draw_protocol_t;

union efi_uga_draw_protocol {
	struct {
		efi_status_t (__efiapi *get_mode)(efi_uga_draw_protocol_t *,
						  u32*, u32*, u32*, u32*);
		void *set_mode;
		void *blt;
	};
	struct {
		u32 get_mode;
		u32 set_mode;
		u32 blt;
	} mixed_mode;
};

union efi_simple_text_output_protocol {
	struct {
		void *reset;
		efi_status_t (__efiapi *output_string)(efi_simple_text_output_protocol_t *,
						       efi_char16_t *);
		void *test_string;
	};
	struct {
		u32 reset;
		u32 output_string;
		u32 test_string;
	} mixed_mode;
};

#define PIXEL_RGB_RESERVED_8BIT_PER_COLOR		0
#define PIXEL_BGR_RESERVED_8BIT_PER_COLOR		1
#define PIXEL_BIT_MASK					2
#define PIXEL_BLT_ONLY					3
#define PIXEL_FORMAT_MAX				4

typedef struct {
	u32 red_mask;
	u32 green_mask;
	u32 blue_mask;
	u32 reserved_mask;
} efi_pixel_bitmask_t;

typedef struct {
	u32 version;
	u32 horizontal_resolution;
	u32 vertical_resolution;
	int pixel_format;
	efi_pixel_bitmask_t pixel_information;
	u32 pixels_per_scan_line;
} efi_graphics_output_mode_info_t;

typedef union efi_graphics_output_protocol_mode efi_graphics_output_protocol_mode_t;

union efi_graphics_output_protocol_mode {
	struct {
		u32 max_mode;
		u32 mode;
		efi_graphics_output_mode_info_t *info;
		unsigned long size_of_info;
		efi_physical_addr_t frame_buffer_base;
		unsigned long frame_buffer_size;
	};
	struct {
		u32 max_mode;
		u32 mode;
		u32 info;
		u32 size_of_info;
		u64 frame_buffer_base;
		u32 frame_buffer_size;
	} mixed_mode;
};

typedef union efi_graphics_output_protocol efi_graphics_output_protocol_t;

union efi_graphics_output_protocol {
	struct {
		efi_status_t (__efiapi *query_mode)(efi_graphics_output_protocol_t *,
						    u32, unsigned long *,
						    efi_graphics_output_mode_info_t **);
		efi_status_t (__efiapi *set_mode)  (efi_graphics_output_protocol_t *, u32);
		void *blt;
		efi_graphics_output_protocol_mode_t *mode;
	};
	struct {
		u32 query_mode;
		u32 set_mode;
		u32 blt;
		u32 mode;
	} mixed_mode;
};

typedef union {
	struct {
		u32			revision;
		efi_handle_t		parent_handle;
		efi_system_table_t	*system_table;
		efi_handle_t		device_handle;
		void			*file_path;
		void			*reserved;
		u32			load_options_size;
		void			*load_options;
		void			*image_base;
		__aligned_u64		image_size;
		unsigned int		image_code_type;
		unsigned int		image_data_type;
		efi_status_t		(__efiapi *unload)(efi_handle_t image_handle);
	};
	struct {
		u32		revision;
		u32		parent_handle;
		u32		system_table;
		u32		device_handle;
		u32		file_path;
		u32		reserved;
		u32		load_options_size;
		u32		load_options;
		u32		image_base;
		__aligned_u64	image_size;
		u32		image_code_type;
		u32		image_data_type;
		u32		unload;
	} mixed_mode;
} efi_loaded_image_t;

typedef struct {
	u64			size;
	u64			file_size;
	u64			phys_size;
	efi_time_t		create_time;
	efi_time_t		last_access_time;
	efi_time_t		modification_time;
	__aligned_u64		attribute;
	efi_char16_t		filename[];
} efi_file_info_t;

typedef struct efi_file_protocol efi_file_protocol_t;

struct efi_file_protocol {
	u64		revision;
	efi_status_t	(__efiapi *open)	(efi_file_protocol_t *,
						 efi_file_protocol_t **,
						 efi_char16_t *, u64, u64);
	efi_status_t	(__efiapi *close)	(efi_file_protocol_t *);
	efi_status_t	(__efiapi *delete)	(efi_file_protocol_t *);
	efi_status_t	(__efiapi *read)	(efi_file_protocol_t *,
						 unsigned long *, void *);
	efi_status_t	(__efiapi *write)	(efi_file_protocol_t *,
						 unsigned long, void *);
	efi_status_t	(__efiapi *get_position)(efi_file_protocol_t *, u64 *);
	efi_status_t	(__efiapi *set_position)(efi_file_protocol_t *, u64);
	efi_status_t	(__efiapi *get_info)	(efi_file_protocol_t *,
						 efi_guid_t *, unsigned long *,
						 void *);
	efi_status_t	(__efiapi *set_info)	(efi_file_protocol_t *,
						 efi_guid_t *, unsigned long,
						 void *);
	efi_status_t	(__efiapi *flush)	(efi_file_protocol_t *);
};

typedef struct efi_simple_file_system_protocol efi_simple_file_system_protocol_t;

struct efi_simple_file_system_protocol {
	u64	revision;
	int	(__efiapi *open_volume)(efi_simple_file_system_protocol_t *,
					efi_file_protocol_t **);
};

#define EFI_FILE_MODE_READ	0x0000000000000001
#define EFI_FILE_MODE_WRITE	0x0000000000000002
#define EFI_FILE_MODE_CREATE	0x8000000000000000

typedef enum {
	EfiPciIoWidthUint8,
	EfiPciIoWidthUint16,
	EfiPciIoWidthUint32,
	EfiPciIoWidthUint64,
	EfiPciIoWidthFifoUint8,
	EfiPciIoWidthFifoUint16,
	EfiPciIoWidthFifoUint32,
	EfiPciIoWidthFifoUint64,
	EfiPciIoWidthFillUint8,
	EfiPciIoWidthFillUint16,
	EfiPciIoWidthFillUint32,
	EfiPciIoWidthFillUint64,
	EfiPciIoWidthMaximum
} EFI_PCI_IO_PROTOCOL_WIDTH;

typedef enum {
	EfiPciIoAttributeOperationGet,
	EfiPciIoAttributeOperationSet,
	EfiPciIoAttributeOperationEnable,
	EfiPciIoAttributeOperationDisable,
	EfiPciIoAttributeOperationSupported,
    EfiPciIoAttributeOperationMaximum
} EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION;

typedef struct {
	u32 read;
	u32 write;
} efi_pci_io_protocol_access_32_t;

typedef union efi_pci_io_protocol efi_pci_io_protocol_t;

typedef
efi_status_t (__efiapi *efi_pci_io_protocol_cfg_t)(efi_pci_io_protocol_t *,
						   EFI_PCI_IO_PROTOCOL_WIDTH,
						   u32 offset,
						   unsigned long count,
						   void *buffer);

typedef struct {
	void *read;
	void *write;
} efi_pci_io_protocol_access_t;

typedef struct {
	efi_pci_io_protocol_cfg_t read;
	efi_pci_io_protocol_cfg_t write;
} efi_pci_io_protocol_config_access_t;

union efi_pci_io_protocol {
	struct {
		void *poll_mem;
		void *poll_io;
		efi_pci_io_protocol_access_t mem;
		efi_pci_io_protocol_access_t io;
		efi_pci_io_protocol_config_access_t pci;
		void *copy_mem;
		void *map;
		void *unmap;
		void *allocate_buffer;
		void *free_buffer;
		void *flush;
		efi_status_t (__efiapi *get_location)(efi_pci_io_protocol_t *,
						      unsigned long *segment_nr,
						      unsigned long *bus_nr,
						      unsigned long *device_nr,
						      unsigned long *func_nr);
		void *attributes;
		void *get_bar_attributes;
		void *set_bar_attributes;
		uint64_t romsize;
		void *romimage;
	};
	struct {
		u32 poll_mem;
		u32 poll_io;
		efi_pci_io_protocol_access_32_t mem;
		efi_pci_io_protocol_access_32_t io;
		efi_pci_io_protocol_access_32_t pci;
		u32 copy_mem;
		u32 map;
		u32 unmap;
		u32 allocate_buffer;
		u32 free_buffer;
		u32 flush;
		u32 get_location;
		u32 attributes;
		u32 get_bar_attributes;
		u32 set_bar_attributes;
		u64 romsize;
		u32 romimage;
	} mixed_mode;
};

#define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001
#define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002
#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004
#define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008
#define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010
#define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020
#define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040
#define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080
#define EFI_PCI_IO_ATTRIBUTE_IO 0x0100
#define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200
#define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400
#define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800
#define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000
#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000
#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000
#define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000
#define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000
#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000
#define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000

struct efi_dev_path;

typedef union apple_properties_protocol apple_properties_protocol_t;

union apple_properties_protocol {
	struct {
		unsigned long version;
		efi_status_t (__efiapi *get)(apple_properties_protocol_t *,
					     struct efi_dev_path *,
					     efi_char16_t *, void *, u32 *);
		efi_status_t (__efiapi *set)(apple_properties_protocol_t *,
					     struct efi_dev_path *,
					     efi_char16_t *, void *, u32);
		efi_status_t (__efiapi *del)(apple_properties_protocol_t *,
					     struct efi_dev_path *,
					     efi_char16_t *);
		efi_status_t (__efiapi *get_all)(apple_properties_protocol_t *,
						 void *buffer, u32 *);
	};
	struct {
		u32 version;
		u32 get;
		u32 set;
		u32 del;
		u32 get_all;
	} mixed_mode;
};

typedef u32 efi_tcg2_event_log_format;

typedef union efi_tcg2_protocol efi_tcg2_protocol_t;

union efi_tcg2_protocol {
	struct {
		void *get_capability;
		efi_status_t (__efiapi *get_event_log)(efi_handle_t,
						       efi_tcg2_event_log_format,
						       efi_physical_addr_t *,
						       efi_physical_addr_t *,
						       efi_bool_t *);
		void *hash_log_extend_event;
		void *submit_command;
		void *get_active_pcr_banks;
		void *set_active_pcr_banks;
		void *get_result_of_set_active_pcr_banks;
	};
	struct {
		u32 get_capability;
		u32 get_event_log;
		u32 hash_log_extend_event;
		u32 submit_command;
		u32 get_active_pcr_banks;
		u32 set_active_pcr_banks;
		u32 get_result_of_set_active_pcr_banks;
	} mixed_mode;
};

typedef union efi_load_file_protocol efi_load_file_protocol_t;
typedef union efi_load_file_protocol efi_load_file2_protocol_t;

union efi_load_file_protocol {
	struct {
		efi_status_t (__efiapi *load_file)(efi_load_file_protocol_t *,
						   efi_device_path_protocol_t *,
						   bool, unsigned long *, void *);
	};
	struct {
		u32 load_file;
	} mixed_mode;
};

void efi_pci_disable_bridge_busmaster(void);

typedef efi_status_t (*efi_exit_boot_map_processing)(
	struct efi_boot_memmap *map,
	void *priv);

efi_status_t efi_exit_boot_services(void *handle,
				    struct efi_boot_memmap *map,
				    void *priv,
				    efi_exit_boot_map_processing priv_func);

void efi_char16_printk(efi_char16_t *);

efi_status_t allocate_new_fdt_and_exit_boot(void *handle,
					    unsigned long *new_fdt_addr,
					    unsigned long max_addr,
					    u64 initrd_addr, u64 initrd_size,
					    char *cmdline_ptr,
					    unsigned long fdt_addr,
					    unsigned long fdt_size);

void *get_fdt(unsigned long *fdt_size);

void efi_get_virtmap(efi_memory_desc_t *memory_map, unsigned long map_size,
		     unsigned long desc_size, efi_memory_desc_t *runtime_map,
		     int *count);

efi_status_t efi_get_random_bytes(unsigned long size, u8 *out);

efi_status_t efi_random_alloc(unsigned long size, unsigned long align,
			      unsigned long *addr, unsigned long random_seed);

efi_status_t check_platform_features(void);

void *get_efi_config_table(efi_guid_t guid);

void efi_printk(char *str);

void efi_free(unsigned long size, unsigned long addr);

char *efi_convert_cmdline(efi_loaded_image_t *image, int *cmd_line_len,
			  unsigned long max_addr);

efi_status_t efi_get_memory_map(struct efi_boot_memmap *map);

efi_status_t efi_allocate_pages(unsigned long size, unsigned long *addr,
				unsigned long max);

efi_status_t efi_allocate_pages_aligned(unsigned long size, unsigned long *addr,
					unsigned long max, unsigned long align);

efi_status_t efi_relocate_kernel(unsigned long *image_addr,
				 unsigned long image_size,
				 unsigned long alloc_size,
				 unsigned long preferred_addr,
				 unsigned long alignment,
				 unsigned long min_addr);

efi_status_t efi_parse_options(char const *cmdline);

void efi_parse_option_graphics(char *option);

efi_status_t efi_setup_gop(struct screen_info *si, efi_guid_t *proto,
			   unsigned long size);

efi_status_t handle_cmdline_files(efi_loaded_image_t *image,
				  const efi_char16_t *optstr,
				  int optstr_size,
				  unsigned long soft_limit,
				  unsigned long hard_limit,
				  unsigned long *load_addr,
				  unsigned long *load_size);


static inline efi_status_t efi_load_dtb(efi_loaded_image_t *image,
					unsigned long *load_addr,
					unsigned long *load_size)
{
	return handle_cmdline_files(image, L"dtb=", sizeof(L"dtb=") - 2,
				    ULONG_MAX, ULONG_MAX, load_addr, load_size);
}

static inline efi_status_t efi_load_initrd(efi_loaded_image_t *image,
					   unsigned long *load_addr,
					   unsigned long *load_size,
					   unsigned long soft_limit,
					   unsigned long hard_limit)
{
	if (!IS_ENABLED(CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER))
		return EFI_SUCCESS;

	return handle_cmdline_files(image, L"initrd=", sizeof(L"initrd=") - 2,
				    soft_limit, hard_limit, load_addr, load_size);
}

efi_status_t efi_load_initrd_dev_path(unsigned long *load_addr,
				      unsigned long *load_size,
				      unsigned long max);

#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
bd669475 AB	2
	3	#ifndef _DRIVERS_FIRMWARE_EFI_EFISTUB_H
	4	#define _DRIVERS_FIRMWARE_EFI_EFISTUB_H
	5
	6	/* error code which can't be mistaken for valid address */
	7	#define EFI_ERROR (~0UL)
	8
07e83dbb AB	9	/*
	10	* __init annotations should not be used in the EFI stub, since the code is
	11	* either included in the decompressor (x86, ARM) where they have no effect,
	12	* or the whole stub is __init annotated at the section level (arm64), by
	13	* renaming the sections, in which case the __init annotation will be
	14	* redundant, and will result in section names like .init.init.text, and our
	15	* linker script does not expect that.
	16	*/
	17	#undef __init
	18
a6a14469 AB	19	/*
	20	* Allow the platform to override the allocation granularity: this allows
	21	* systems that have the capability to run with a larger page size to deal
	22	* with the allocations for initrd and fdt more efficiently.
	23	*/
	24	#ifndef EFI_ALLOC_ALIGN
	25	#define EFI_ALLOC_ALIGN EFI_PAGE_SIZE
	26	#endif
	27
5193a33d	28	extern bool __pure nochunk(void);
7d4e323d	29	extern bool __pure nokaslr(void);
79d3219d	30	extern bool __pure noinitrd(void);
7d4e323d AB	31	extern bool __pure is_quiet(void);
7d4e323d AB	32	extern bool __pure novamap(void);
eeff7d63	33
ccc27ae7	34	extern const efi_system_table_t *efi_system_table;
2fcdad2a	35
22090f84	36	#ifndef efi_bs_call
ccc27ae7	37	#define efi_bs_call(func, ...) efi_system_table->boottime->func(__VA_ARGS__)
22090f84 AB	38	#endif
22090f84 AB	39	#ifndef efi_rt_call
ccc27ae7	40	#define efi_rt_call(func, ...) efi_system_table->runtime->func(__VA_ARGS__)
22090f84 AB	41	#endif
	42	#ifndef efi_is_native
	43	#define efi_is_native() (true)
	44	#endif
	45	#ifndef efi_table_attr
	46	#define efi_table_attr(inst, attr) (inst->attr)
	47	#endif
	48	#ifndef efi_call_proto
	49	#define efi_call_proto(inst, func, ...) inst->func(inst, ##__VA_ARGS__)
	50	#endif
	51
8173ec79 AB	52	#define pr_efi(msg) do { \
8173ec79 AB	53	if (!is_quiet()) efi_printk("EFI stub: "msg); \
eeff7d63 AB	54	} while (0)
eeff7d63 AB	55
8173ec79	56	#define pr_efi_err(msg) efi_printk("EFI stub: ERROR: "msg)
60f38de7	57
ac9aff8e IM	58	/* Helper macros for the usual case of using simple C variables: */
	59	#ifndef fdt_setprop_inplace_var
	60	#define fdt_setprop_inplace_var(fdt, node_offset, name, var) \
	61	fdt_setprop_inplace((fdt), (node_offset), (name), &(var), sizeof(var))
	62	#endif
	63
	64	#ifndef fdt_setprop_var
	65	#define fdt_setprop_var(fdt, node_offset, name, var) \
	66	fdt_setprop((fdt), (node_offset), (name), &(var), sizeof(var))
	67	#endif
	68
966291f6 AB	69	#define get_efi_var(name, vendor, ...) \
	70	efi_rt_call(get_variable, (efi_char16_t *)(name), \
	71	(efi_guid_t *)(vendor), __VA_ARGS__)
	72
	73	#define set_efi_var(name, vendor, ...) \
	74	efi_rt_call(set_variable, (efi_char16_t *)(name), \
	75	(efi_guid_t *)(vendor), __VA_ARGS__)
	76
8166ec09 AB	77	#define efi_get_handle_at(array, idx) \
	78	(efi_is_native() ? (array)[idx] \
	79	: (efi_handle_t)(unsigned long)((u32 *)(array))[idx])
	80
	81	#define efi_get_handle_num(size) \
	82	((size) / (efi_is_native() ? sizeof(efi_handle_t) : sizeof(u32)))
	83
	84	#define for_each_efi_handle(handle, array, size, i) \
	85	for (i = 0; \
	86	i < efi_get_handle_num(size) && \
	87	((handle = efi_get_handle_at((array), i)) \|\| true); \
	88	i++)
	89
	90	/*
	91	* Allocation types for calls to boottime->allocate_pages.
	92	*/
	93	#define EFI_ALLOCATE_ANY_PAGES 0
	94	#define EFI_ALLOCATE_MAX_ADDRESS 1
	95	#define EFI_ALLOCATE_ADDRESS 2
	96	#define EFI_MAX_ALLOCATE_TYPE 3
	97
	98	/*
	99	* The type of search to perform when calling boottime->locate_handle
	100	*/
	101	#define EFI_LOCATE_ALL_HANDLES 0
	102	#define EFI_LOCATE_BY_REGISTER_NOTIFY 1
	103	#define EFI_LOCATE_BY_PROTOCOL 2
	104
	105	struct efi_boot_memmap {
	106	efi_memory_desc_t **map;
	107	unsigned long *map_size;
	108	unsigned long *desc_size;
	109	u32 *desc_ver;
	110	unsigned long *key_ptr;
	111	unsigned long *buff_size;
	112	};
	113
abd26868 AB	114	typedef struct efi_generic_dev_path efi_device_path_protocol_t;
abd26868 AB	115
8166ec09 AB	116	/*
	117	* EFI Boot Services table
	118	*/
	119	union efi_boot_services {
	120	struct {
	121	efi_table_hdr_t hdr;
	122	void *raise_tpl;
	123	void *restore_tpl;
	124	efi_status_t (__efiapi *allocate_pages)(int, int, unsigned long,
	125	efi_physical_addr_t *);
	126	efi_status_t (__efiapi *free_pages)(efi_physical_addr_t,
	127	unsigned long);
	128	efi_status_t (__efiapi get_memory_map)(unsigned long , void *,
	129	unsigned long *,
	130	unsigned long , u32 );
	131	efi_status_t (__efiapi *allocate_pool)(int, unsigned long,
	132	void **);
	133	efi_status_t (__efiapi free_pool)(void );
	134	void *create_event;
	135	void *set_timer;
	136	void *wait_for_event;
	137	void *signal_event;
	138	void *close_event;
	139	void *check_event;
	140	void *install_protocol_interface;
	141	void *reinstall_protocol_interface;
	142	void *uninstall_protocol_interface;
	143	efi_status_t (__efiapi *handle_protocol)(efi_handle_t,
	144	efi_guid_t , void *);
	145	void *__reserved;
	146	void *register_protocol_notify;
	147	efi_status_t (__efiapi locate_handle)(int, efi_guid_t ,
	148	void , unsigned long ,
	149	efi_handle_t *);
abd26868 AB	150	efi_status_t (__efiapi locate_device_path)(efi_guid_t ,
	151	efi_device_path_protocol_t **,
	152	efi_handle_t *);
8166ec09 AB	153	efi_status_t (__efiapi install_configuration_table)(efi_guid_t ,
	154	void *);
	155	void *load_image;
	156	void *start_image;
3b8f44fc AB	157	efi_status_t __noreturn (__efiapi *exit)(efi_handle_t,
	158	efi_status_t,
	159	unsigned long,
	160	efi_char16_t *);
8166ec09 AB	161	void *unload_image;
	162	efi_status_t (__efiapi *exit_boot_services)(efi_handle_t,
	163	unsigned long);
	164	void *get_next_monotonic_count;
	165	void *stall;
	166	void *set_watchdog_timer;
	167	void *connect_controller;
	168	efi_status_t (__efiapi *disconnect_controller)(efi_handle_t,
	169	efi_handle_t,
	170	efi_handle_t);
	171	void *open_protocol;
	172	void *close_protocol;
	173	void *open_protocol_information;
	174	void *protocols_per_handle;
	175	void *locate_handle_buffer;
	176	efi_status_t (__efiapi locate_protocol)(efi_guid_t , void *,
	177	void **);
	178	void *install_multiple_protocol_interfaces;
	179	void *uninstall_multiple_protocol_interfaces;
	180	void *calculate_crc32;
	181	void *copy_mem;
	182	void *set_mem;
	183	void *create_event_ex;
	184	};
	185	struct {
	186	efi_table_hdr_t hdr;
	187	u32 raise_tpl;
	188	u32 restore_tpl;
	189	u32 allocate_pages;
	190	u32 free_pages;
	191	u32 get_memory_map;
	192	u32 allocate_pool;
	193	u32 free_pool;
	194	u32 create_event;
	195	u32 set_timer;
	196	u32 wait_for_event;
	197	u32 signal_event;
	198	u32 close_event;
	199	u32 check_event;
	200	u32 install_protocol_interface;
	201	u32 reinstall_protocol_interface;
	202	u32 uninstall_protocol_interface;
	203	u32 handle_protocol;
	204	u32 __reserved;
	205	u32 register_protocol_notify;
	206	u32 locate_handle;
	207	u32 locate_device_path;
	208	u32 install_configuration_table;
	209	u32 load_image;
	210	u32 start_image;
	211	u32 exit;
	212	u32 unload_image;
	213	u32 exit_boot_services;
	214	u32 get_next_monotonic_count;
	215	u32 stall;
	216	u32 set_watchdog_timer;
	217	u32 connect_controller;
	218	u32 disconnect_controller;
	219	u32 open_protocol;
	220	u32 close_protocol;
	221	u32 open_protocol_information;
	222	u32 protocols_per_handle;
	223	u32 locate_handle_buffer;
	224	u32 locate_protocol;
225	u32 install_multiple_protocol_interfaces;
226	u32 uninstall_multiple_protocol_interfaces;
227	u32 calculate_crc32;
228	u32 copy_mem;
229	u32 set_mem;
230	u32 create_event_ex;
231	} mixed_mode;
232	};
233
c2d0b470 AB	234	typedef union efi_uga_draw_protocol efi_uga_draw_protocol_t;
	235
	236	union efi_uga_draw_protocol {
	237	struct {
	238	efi_status_t (__efiapi get_mode)(efi_uga_draw_protocol_t ,
	239	u32, u32, u32, u32);
	240	void *set_mode;
	241	void *blt;
	242	};
	243	struct {
	244	u32 get_mode;
	245	u32 set_mode;
	246	u32 blt;
	247	} mixed_mode;
	248	};
	249
8166ec09 AB	250	union efi_simple_text_output_protocol {
	251	struct {
	252	void *reset;
	253	efi_status_t (__efiapi output_string)(efi_simple_text_output_protocol_t ,
	254	efi_char16_t *);
	255	void *test_string;
	256	};
	257	struct {
	258	u32 reset;
	259	u32 output_string;
	260	u32 test_string;
	261	} mixed_mode;
	262	};
	263
	264	#define PIXEL_RGB_RESERVED_8BIT_PER_COLOR 0
	265	#define PIXEL_BGR_RESERVED_8BIT_PER_COLOR 1
	266	#define PIXEL_BIT_MASK 2
	267	#define PIXEL_BLT_ONLY 3
	268	#define PIXEL_FORMAT_MAX 4
	269
	270	typedef struct {
	271	u32 red_mask;
	272	u32 green_mask;
	273	u32 blue_mask;
	274	u32 reserved_mask;
	275	} efi_pixel_bitmask_t;
	276
	277	typedef struct {
	278	u32 version;
	279	u32 horizontal_resolution;
	280	u32 vertical_resolution;
	281	int pixel_format;
	282	efi_pixel_bitmask_t pixel_information;
	283	u32 pixels_per_scan_line;
	284	} efi_graphics_output_mode_info_t;
	285
	286	typedef union efi_graphics_output_protocol_mode efi_graphics_output_protocol_mode_t;
	287
	288	union efi_graphics_output_protocol_mode {
	289	struct {
	290	u32 max_mode;
	291	u32 mode;
	292	efi_graphics_output_mode_info_t *info;
	293	unsigned long size_of_info;
	294	efi_physical_addr_t frame_buffer_base;
	295	unsigned long frame_buffer_size;
	296	};
	297	struct {
	298	u32 max_mode;
	299	u32 mode;
	300	u32 info;
	301	u32 size_of_info;
	302	u64 frame_buffer_base;
	303	u32 frame_buffer_size;
	304	} mixed_mode;
	305	};
	306
	307	typedef union efi_graphics_output_protocol efi_graphics_output_protocol_t;
	308
	309	union efi_graphics_output_protocol {
	310	struct {
b4b89a02 AS	311	efi_status_t (__efiapi query_mode)(efi_graphics_output_protocol_t ,
	312	u32, unsigned long *,
	313	efi_graphics_output_mode_info_t **);
	314	efi_status_t (__efiapi set_mode) (efi_graphics_output_protocol_t , u32);
8166ec09 AB	315	void *blt;
	316	efi_graphics_output_protocol_mode_t *mode;
	317	};
	318	struct {
	319	u32 query_mode;
	320	u32 set_mode;
	321	u32 blt;
	322	u32 mode;
	323	} mixed_mode;
	324	};
	325
f7b85b33 AB	326	typedef union {
	327	struct {
	328	u32 revision;
	329	efi_handle_t parent_handle;
	330	efi_system_table_t *system_table;
	331	efi_handle_t device_handle;
	332	void *file_path;
	333	void *reserved;
	334	u32 load_options_size;
	335	void *load_options;
	336	void *image_base;
	337	__aligned_u64 image_size;
	338	unsigned int image_code_type;
	339	unsigned int image_data_type;
	340	efi_status_t (__efiapi *unload)(efi_handle_t image_handle);
	341	};
	342	struct {
	343	u32 revision;
	344	u32 parent_handle;
	345	u32 system_table;
	346	u32 device_handle;
	347	u32 file_path;
	348	u32 reserved;
	349	u32 load_options_size;
	350	u32 load_options;
	351	u32 image_base;
	352	__aligned_u64 image_size;
	353	u32 image_code_type;
	354	u32 image_data_type;
	355	u32 unload;
	356	} mixed_mode;
a46a290a AB	357	} efi_loaded_image_t;
	358
	359	typedef struct {
	360	u64 size;
	361	u64 file_size;
	362	u64 phys_size;
	363	efi_time_t create_time;
	364	efi_time_t last_access_time;
	365	efi_time_t modification_time;
	366	__aligned_u64 attribute;
9302c1bb	367	efi_char16_t filename[];
a46a290a AB	368	} efi_file_info_t;
	369
	370	typedef struct efi_file_protocol efi_file_protocol_t;
	371
	372	struct efi_file_protocol {
	373	u64 revision;
	374	efi_status_t (__efiapi open) (efi_file_protocol_t ,
	375	efi_file_protocol_t **,
	376	efi_char16_t *, u64, u64);
	377	efi_status_t (__efiapi close) (efi_file_protocol_t );
	378	efi_status_t (__efiapi delete) (efi_file_protocol_t );
	379	efi_status_t (__efiapi read) (efi_file_protocol_t ,
	380	unsigned long , void );
	381	efi_status_t (__efiapi write) (efi_file_protocol_t ,
	382	unsigned long, void *);
	383	efi_status_t (__efiapi get_position)(efi_file_protocol_t , u64 *);
	384	efi_status_t (__efiapi set_position)(efi_file_protocol_t , u64);
	385	efi_status_t (__efiapi get_info) (efi_file_protocol_t ,
	386	efi_guid_t , unsigned long ,
	387	void *);
	388	efi_status_t (__efiapi set_info) (efi_file_protocol_t ,
	389	efi_guid_t *, unsigned long,
	390	void *);
	391	efi_status_t (__efiapi flush) (efi_file_protocol_t );
	392	};
	393
	394	typedef struct efi_simple_file_system_protocol efi_simple_file_system_protocol_t;
	395
	396	struct efi_simple_file_system_protocol {
	397	u64 revision;
	398	int (__efiapi open_volume)(efi_simple_file_system_protocol_t ,
	399	efi_file_protocol_t **);
	400	};
	401
	402	#define EFI_FILE_MODE_READ 0x0000000000000001
	403	#define EFI_FILE_MODE_WRITE 0x0000000000000002
	404	#define EFI_FILE_MODE_CREATE 0x8000000000000000
	405
8166ec09 AB	406	typedef enum {
	407	EfiPciIoWidthUint8,
	408	EfiPciIoWidthUint16,
	409	EfiPciIoWidthUint32,
	410	EfiPciIoWidthUint64,
	411	EfiPciIoWidthFifoUint8,
	412	EfiPciIoWidthFifoUint16,
	413	EfiPciIoWidthFifoUint32,
	414	EfiPciIoWidthFifoUint64,
	415	EfiPciIoWidthFillUint8,
	416	EfiPciIoWidthFillUint16,
	417	EfiPciIoWidthFillUint32,
	418	EfiPciIoWidthFillUint64,
	419	EfiPciIoWidthMaximum
	420	} EFI_PCI_IO_PROTOCOL_WIDTH;
	421
	422	typedef enum {
	423	EfiPciIoAttributeOperationGet,
	424	EfiPciIoAttributeOperationSet,
	425	EfiPciIoAttributeOperationEnable,
	426	EfiPciIoAttributeOperationDisable,
	427	EfiPciIoAttributeOperationSupported,
	428	EfiPciIoAttributeOperationMaximum
	429	} EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION;
	430
	431	typedef struct {
	432	u32 read;
	433	u32 write;
	434	} efi_pci_io_protocol_access_32_t;
	435
	436	typedef union efi_pci_io_protocol efi_pci_io_protocol_t;
	437
	438	typedef
	439	efi_status_t (__efiapi efi_pci_io_protocol_cfg_t)(efi_pci_io_protocol_t ,
	440	EFI_PCI_IO_PROTOCOL_WIDTH,
	441	u32 offset,
	442	unsigned long count,
	443	void *buffer);
	444
	445	typedef struct {
	446	void *read;
	447	void *write;
	448	} efi_pci_io_protocol_access_t;
	449
	450	typedef struct {
	451	efi_pci_io_protocol_cfg_t read;
	452	efi_pci_io_protocol_cfg_t write;
	453	} efi_pci_io_protocol_config_access_t;
	454
	455	union efi_pci_io_protocol {
	456	struct {
	457	void *poll_mem;
	458	void *poll_io;
	459	efi_pci_io_protocol_access_t mem;
	460	efi_pci_io_protocol_access_t io;
	461	efi_pci_io_protocol_config_access_t pci;
	462	void *copy_mem;
	463	void *map;
	464	void *unmap;
	465	void *allocate_buffer;
	466	void *free_buffer;
	467	void *flush;
	468	efi_status_t (__efiapi get_location)(efi_pci_io_protocol_t ,
	469	unsigned long *segment_nr,
470	unsigned long *bus_nr,
471	unsigned long *device_nr,
472	unsigned long *func_nr);
473	void *attributes;
474	void *get_bar_attributes;
475	void *set_bar_attributes;
476	uint64_t romsize;
477	void *romimage;
478	};
479	struct {
480	u32 poll_mem;
481	u32 poll_io;
482	efi_pci_io_protocol_access_32_t mem;
483	efi_pci_io_protocol_access_32_t io;
484	efi_pci_io_protocol_access_32_t pci;
485	u32 copy_mem;
486	u32 map;
487	u32 unmap;
488	u32 allocate_buffer;
489	u32 free_buffer;
490	u32 flush;
491	u32 get_location;
492	u32 attributes;
493	u32 get_bar_attributes;
494	u32 set_bar_attributes;
495	u64 romsize;
496	u32 romimage;
497	} mixed_mode;
498	};
499
500	#define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001
501	#define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002
502	#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004
503	#define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008
504	#define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010
505	#define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020
506	#define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040
507	#define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080
508	#define EFI_PCI_IO_ATTRIBUTE_IO 0x0100
509	#define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200
510	#define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400
511	#define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800
512	#define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000
513	#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000
514	#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000
515	#define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000
516	#define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000
517	#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000
518	#define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000
519
520	struct efi_dev_path;
521
522	typedef union apple_properties_protocol apple_properties_protocol_t;
523
524	union apple_properties_protocol {
525	struct {
526	unsigned long version;
527	efi_status_t (__efiapi get)(apple_properties_protocol_t ,
528	struct efi_dev_path *,
529	efi_char16_t , void , u32 *);
530	efi_status_t (__efiapi set)(apple_properties_protocol_t ,
531	struct efi_dev_path *,
532	efi_char16_t , void , u32);
533	efi_status_t (__efiapi del)(apple_properties_protocol_t ,
534	struct efi_dev_path *,
535	efi_char16_t *);
536	efi_status_t (__efiapi get_all)(apple_properties_protocol_t ,
537	void buffer, u32 );
538	};
539	struct {
540	u32 version;
541	u32 get;
542	u32 set;
543	u32 del;
544	u32 get_all;
545	} mixed_mode;
546	};
547
548	typedef u32 efi_tcg2_event_log_format;
549
550	typedef union efi_tcg2_protocol efi_tcg2_protocol_t;
551
552	union efi_tcg2_protocol {
553	struct {
554	void *get_capability;
555	efi_status_t (__efiapi *get_event_log)(efi_handle_t,
556	efi_tcg2_event_log_format,
557	efi_physical_addr_t *,
558	efi_physical_addr_t *,
559	efi_bool_t *);
560	void *hash_log_extend_event;
561	void *submit_command;
562	void *get_active_pcr_banks;
563	void *set_active_pcr_banks;
564	void *get_result_of_set_active_pcr_banks;
565	};
566	struct {
567	u32 get_capability;
568	u32 get_event_log;
569	u32 hash_log_extend_event;
570	u32 submit_command;
571	u32 get_active_pcr_banks;
572	u32 set_active_pcr_banks;
573	u32 get_result_of_set_active_pcr_banks;
574	} mixed_mode;
575	};
576
2931d526 AB	577	typedef union efi_load_file_protocol efi_load_file_protocol_t;
	578	typedef union efi_load_file_protocol efi_load_file2_protocol_t;
	579
	580	union efi_load_file_protocol {
	581	struct {
	582	efi_status_t (__efiapi load_file)(efi_load_file_protocol_t ,
	583	efi_device_path_protocol_t *,
	584	bool, unsigned long , void );
	585	};
	586	struct {
	587	u32 load_file;
	588	} mixed_mode;
	589	};
	590
8166ec09 AB	591	void efi_pci_disable_bridge_busmaster(void);
	592
	593	typedef efi_status_t (*efi_exit_boot_map_processing)(
	594	struct efi_boot_memmap *map,
	595	void *priv);
	596
	597	efi_status_t efi_exit_boot_services(void *handle,
	598	struct efi_boot_memmap *map,
	599	void *priv,
	600	efi_exit_boot_map_processing priv_func);
	601
	602	void efi_char16_printk(efi_char16_t *);
	603
8166ec09 AB	604	efi_status_t allocate_new_fdt_and_exit_boot(void *handle,
	605	unsigned long *new_fdt_addr,
	606	unsigned long max_addr,
	607	u64 initrd_addr, u64 initrd_size,
	608	char *cmdline_ptr,
	609	unsigned long fdt_addr,
	610	unsigned long fdt_size);
	611
	612	void get_fdt(unsigned long fdt_size);
	613
	614	void efi_get_virtmap(efi_memory_desc_t *memory_map, unsigned long map_size,
	615	unsigned long desc_size, efi_memory_desc_t *runtime_map,
	616	int *count);
	617
	618	efi_status_t efi_get_random_bytes(unsigned long size, u8 *out);
	619
	620	efi_status_t efi_random_alloc(unsigned long size, unsigned long align,
	621	unsigned long *addr, unsigned long random_seed);
	622
	623	efi_status_t check_platform_features(void);
	624
	625	void *get_efi_config_table(efi_guid_t guid);
	626
	627	void efi_printk(char *str);
	628
	629	void efi_free(unsigned long size, unsigned long addr);
	630
1e45bf73 AB	631	char efi_convert_cmdline(efi_loaded_image_t image, int *cmd_line_len,
1e45bf73 AB	632	unsigned long max_addr);
8166ec09 AB	633
	634	efi_status_t efi_get_memory_map(struct efi_boot_memmap *map);
	635
8166ec09 AB	636	efi_status_t efi_allocate_pages(unsigned long size, unsigned long *addr,
	637	unsigned long max);
	638
43b1df0e AB	639	efi_status_t efi_allocate_pages_aligned(unsigned long size, unsigned long *addr,
	640	unsigned long max, unsigned long align);
	641
8166ec09 AB	642	efi_status_t efi_relocate_kernel(unsigned long *image_addr,
	643	unsigned long image_size,
	644	unsigned long alloc_size,
	645	unsigned long preferred_addr,
	646	unsigned long alignment,
	647	unsigned long min_addr);
	648
8166ec09 AB	649	efi_status_t efi_parse_options(char const *cmdline);
8166ec09 AB	650
fffb6804 AS	651	void efi_parse_option_graphics(char *option);
fffb6804 AS	652
8166ec09 AB	653	efi_status_t efi_setup_gop(struct screen_info si, efi_guid_t proto,
	654	unsigned long size);
	655
cf6b8366 AB	656	efi_status_t handle_cmdline_files(efi_loaded_image_t *image,
	657	const efi_char16_t *optstr,
	658	int optstr_size,
	659	unsigned long soft_limit,
	660	unsigned long hard_limit,
	661	unsigned long *load_addr,
	662	unsigned long *load_size);
	663
	664
	665	static inline efi_status_t efi_load_dtb(efi_loaded_image_t *image,
	666	unsigned long *load_addr,
	667	unsigned long *load_size)
	668	{
	669	return handle_cmdline_files(image, L"dtb=", sizeof(L"dtb=") - 2,
	670	ULONG_MAX, ULONG_MAX, load_addr, load_size);
	671	}
	672
	673	static inline efi_status_t efi_load_initrd(efi_loaded_image_t *image,
	674	unsigned long *load_addr,
	675	unsigned long *load_size,
	676	unsigned long soft_limit,
	677	unsigned long hard_limit)
	678	{
	679	if (!IS_ENABLED(CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER))
	680	return EFI_SUCCESS;
	681
	682	return handle_cmdline_files(image, L"initrd=", sizeof(L"initrd=") - 2,
	683	soft_limit, hard_limit, load_addr, load_size);
	684	}
9302c1bb	685
ec93fc37 AB	686	efi_status_t efi_load_initrd_dev_path(unsigned long *load_addr,
	687	unsigned long *load_size,
	688	unsigned long max);
	689
bd669475	690	#endif