#include <sys/types.h>
#include <stddef.h>
#include <stdbool.h>
#include <commonlib/bsd/helpers.h>
#include <commonlib/mem_pool.h>

Include dependency graph for region.h:

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Data Structures
struct	region_device_ops

struct	region

struct	region_device

struct	mem_region_device

struct	mmap_helper_region_device

struct	xlate_window

struct	xlate_region_device

struct	incoherent_rdev

Macros
#define	REGION_DEV_INIT(ops_, offset_, size_)

#define	MEM_REGION_DEV_INIT(base_, size_, ops_)

#define	MEM_REGION_DEV_RO_INIT(base_, size_) MEM_REGION_DEV_INIT(base_, size_, &mem_rdev_ro_ops) \

#define	MEM_REGION_DEV_RW_INIT(base_, size_) MEM_REGION_DEV_INIT(base_, size_, &mem_rdev_rw_ops) \

#define	MMAP_HELPER_DEV_INIT(ops_, offset_, size_, mpool_)

#define	XLATE_REGION_DEV_INIT(window_arr_, parent_sz_, ops_)

#define	XLATE_REGION_DEV_RO_INIT(window_arr_, parent_sz_) XLATE_REGION_DEV_INIT(window_arr_, parent_sz_, &xlate_rdev_ro_ops)

#define	XLATE_REGION_DEV_RW_INIT(window_count_, window_arr_, parent_sz_) XLATE_REGION_DEV_INIT(window_arr_, parent_sz_, &xlate_rdev_rw_ops)

Functions
void *	rdev_mmap (const struct region_device *rd, size_t offset, size_t size)

int	rdev_munmap (const struct region_device rd, void mapping)

ssize_t	rdev_readat (const struct region_device rd, void b, size_t offset, size_t size)

ssize_t	rdev_writeat (const struct region_device rd, const void b, size_t offset, size_t size)

ssize_t	rdev_eraseat (const struct region_device *rd, size_t offset, size_t size)

int	rdev_chain (struct region_device child, const struct region_device parent, size_t offset, size_t size)

void	region_device_init (struct region_device rdev, const struct region_device_ops ops, size_t offset, size_t size)

int	region_is_subregion (const struct region p, const struct region c)

static size_t	region_offset (const struct region *r)

static size_t	region_sz (const struct region *r)

static size_t	region_end (const struct region *r)

static bool	region_overlap (const struct region r1, const struct region r2)

static const struct region *	region_device_region (const struct region_device *rdev)

static size_t	region_device_sz (const struct region_device *rdev)

static size_t	region_device_offset (const struct region_device *rdev)

static size_t	region_device_end (const struct region_device *rdev)

static void *	rdev_mmap_full (const struct region_device *rd)

static int	rdev_chain_full (struct region_device child, const struct region_device parent)

static ssize_t	rdev_read_full (const struct region_device rd, void b)

ssize_t	rdev_relative_offset (const struct region_device p, const struct region_device c)

int	rdev_chain_mem (struct region_device child, const void base, size_t size)

int	rdev_chain_mem_rw (struct region_device child, void base, size_t size)

void	mem_region_device_ro_init (struct mem_region_device mdev, void base, size_t size)

void	mem_region_device_rw_init (struct mem_region_device mdev, void base, size_t size)

void *	mmap_helper_rdev_mmap (const struct region_device *, size_t, size_t)

int	mmap_helper_rdev_munmap (const struct region_device , void )

void	xlate_region_device_ro_init (struct xlate_region_device xdev, size_t window_count, const struct xlate_window window_arr, size_t parent_size)

void	xlate_region_device_rw_init (struct xlate_region_device xdev, size_t window_count, const struct xlate_window window_arr, size_t parent_size)

void	xlate_window_init (struct xlate_window window, const struct region_device access_dev, size_t sub_region_offset, size_t sub_region_size)

const struct region_device *	incoherent_rdev_init (struct incoherent_rdev irdev, const struct region r, const struct region_device read, const struct region_device write)

Variables
const struct region_device_ops	mem_rdev_ro_ops

const struct region_device_ops	mem_rdev_rw_ops

const struct region_device_ops	xlate_rdev_ro_ops

const struct region_device_ops	xlate_rdev_rw_ops

Macro Definition Documentation

◆ MEM_REGION_DEV_INIT

#define MEM_REGION_DEV_INIT	(	base_,
		size_,
		ops_
	)

Value:

        {                                                               \
                .base = (void *)(base_),                                \
                .rdev = REGION_DEV_INIT((ops_), 0, (size_)),            \
        }

Definition at line 202 of file region.h.

◆ MEM_REGION_DEV_RO_INIT

#define MEM_REGION_DEV_RO_INIT	(	base_,
		size_
	)	MEM_REGION_DEV_INIT(base_, size_, &mem_rdev_ro_ops) \

Definition at line 208 of file region.h.

◆ MEM_REGION_DEV_RW_INIT

#define MEM_REGION_DEV_RW_INIT	(	base_,
		size_
	)	MEM_REGION_DEV_INIT(base_, size_, &mem_rdev_rw_ops) \

Definition at line 211 of file region.h.

◆ MMAP_HELPER_DEV_INIT

#define MMAP_HELPER_DEV_INIT	(	ops_,
		offset_,
		size_,
		mpool_
	)

Value:

        {                                                               \
                .rdev = REGION_DEV_INIT((ops_), (offset_), (size_)),    \
                .pool = (mpool_),                                       \
        }

Definition at line 219 of file region.h.

◆ REGION_DEV_INIT

#define REGION_DEV_INIT	(	ops_,
		offset_,
		size_
	)

Value:

        {                                               \
                .root = NULL,                           \
                .ops = (ops_),                          \
                .region = {                             \
                        .offset = (offset_),            \
                        .size = (size_),                \
                },                                      \
        }

Definition at line 87 of file region.h.

◆ XLATE_REGION_DEV_INIT

#define XLATE_REGION_DEV_INIT	(	window_arr_,
		parent_sz_,
		ops_
	)

Value:

        {                                                               \
                .window_count = ARRAY_SIZE(window_arr_),                \
                .window_arr = window_arr_,                              \
                .rdev = REGION_DEV_INIT((ops_), 0,  (parent_sz_)),      \
        }

Definition at line 262 of file region.h.

◆ XLATE_REGION_DEV_RO_INIT

#define XLATE_REGION_DEV_RO_INIT	(	window_arr_,
		parent_sz_
	)	XLATE_REGION_DEV_INIT(window_arr_, parent_sz_, &xlate_rdev_ro_ops)

Definition at line 269 of file region.h.

◆ XLATE_REGION_DEV_RW_INIT

#define XLATE_REGION_DEV_RW_INIT	(	window_count_,
		window_arr_,
		parent_sz_
	)	XLATE_REGION_DEV_INIT(window_arr_, parent_sz_, &xlate_rdev_rw_ops)

Definition at line 272 of file region.h.

Function Documentation

◆ incoherent_rdev_init()

const struct region_device* incoherent_rdev_init	(	struct incoherent_rdev *	irdev,
		const struct region *	r,
		const struct region_device *	read,
		const struct region_device *	write
	)

Definition at line 517 of file region.c.

References incoherent_rdev_ops, NULL, incoherent_rdev::rdev, incoherent_rdev::read, region_device_init(), region_device_sz(), region_sz(), and incoherent_rdev::write.

Referenced by lookup_store(), and update_mrc_cache_by_type().

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◆ mem_region_device_ro_init()

void mem_region_device_ro_init	(	struct mem_region_device *	mdev,
		void *	base,
		size_t	size
	)

Definition at line 166 of file region.c.

References base, mdev, mem_rdev_ro_ops, mem_region_device_init(), and region::size.

Referenced by initialize_window().

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◆ mem_region_device_rw_init()

void mem_region_device_rw_init	(	struct mem_region_device *	mdev,
		void *	base,
		size_t	size
	)

Definition at line 172 of file region.c.

References base, mdev, mem_rdev_rw_ops, mem_region_device_init(), and region::size.

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◆ mmap_helper_rdev_mmap()

void* mmap_helper_rdev_mmap	(	const struct region_device *	rd,
		size_t	offset,
		size_t	size
	)

Definition at line 303 of file region.c.

References container_of, mdev, mem_pool_alloc(), mem_pool_free(), NULL, offset, region_device::ops, mmap_helper_region_device::pool, rdev, and region_device_ops::readat.

Referenced by exynos_spi_map().

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◆ mmap_helper_rdev_munmap()

int mmap_helper_rdev_munmap	(	const struct region_device *	rd,
		void *	mapping
	)

Definition at line 324 of file region.c.

References container_of, mdev, mem_pool_free(), mmap_helper_region_device::pool, and rdev.

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◆ rdev_chain()

int rdev_chain	(	struct region_device *	child,
		const struct region_device *	parent,
		size_t	offset,
		size_t	size
	)

Definition at line 136 of file region.c.

References normalize_and_ok(), NULL, region::offset, offset, region_device::ops, rdev_root(), region_device::region, region_device::root, and region::size.

Referenced by _cbfs_unverified_area_alloc(), allocate_metadata(), boot_device_subregion(), cse_get_target_rdev(), cse_locate_area_as_rdev_rw(), cse_sub_part_get_target_rdev(), elog_find_flash(), fill_data_boundaries(), find_fmap_directory(), init_vpd_rdev(), lookup_store(), mrc_cache_find_current(), mrc_cache_get_latest_slot_info(), mrc_header_valid(), rdev_chain_full(), rdev_chain_mem(), rdev_chain_mem_rw(), region_file_data(), region_file_init(), smmstore_append_data(), smmstore_rawwrite_region(), and vboot_locate_firmware().

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◆ rdev_chain_full()

static int rdev_chain_full	(	struct region_device *	child,
		const struct region_device *	parent
	)

inlinestatic

Definition at line 153 of file region.h.

References rdev_chain(), and region_device_sz().

Referenced by find_fmap_directory(), region_file_init(), and smmstore_rdev_chain().

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◆ rdev_chain_mem()

int rdev_chain_mem	(	struct region_device *	child,
		const void *	base,
		size_t	size
	)

Definition at line 293 of file region.c.

References base, mem_rdev, mem_region_device::rdev, and rdev_chain().

Referenced by bios_mmap_init(), fmap_register_cbmem_cache(), init_vpd_rdevs_from_cbmem(), prog_chain_rdev(), and setup_preram_cache().

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◆ rdev_chain_mem_rw()

int rdev_chain_mem_rw	(	struct region_device *	child,
		void *	base,
		size_t	size
	)

Definition at line 298 of file region.c.

References base, mem_rdev_rw, mem_region_device::rdev, and rdev_chain().

Referenced by elog_init(), and smmstore_init().

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◆ rdev_eraseat()

ssize_t rdev_eraseat	(	const struct region_device *	rd,
		size_t	offset,
		size_t	size
	)

Definition at line 114 of file region.c.

References region_device_ops::eraseat, normalize_and_ok(), NULL, region::offset, offset, region_device::ops, rdev, rdev_root(), region_device::region, and region::size.

Referenced by configure_descriptor(), cse_erase_rw_region(), elog_nv_erase(), erase_nvram(), fmap_overwrite_area(), handle_need_to_empty(), incoherent_eraseat(), load_spd_cache(), smmstore_clear_region(), smmstore_rawclear_region(), soc_update_apob_cache(), and xlate_eraseat().

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◆ rdev_mmap()

void* rdev_mmap	(	const struct region_device *	rd,
		size_t	offset,
		size_t	size
	)

Definition at line 46 of file region.c.

References region_device_ops::mmap, normalize_and_ok(), NULL, region::offset, offset, region_device::ops, rdev, rdev_root(), region_device::region, and region::size.

Referenced by efs_is_valid(), elog_flash_offset_to_address(), elog_get_event_buffer(), elog_is_buffer_clear(), elog_is_header_valid(), elog_move_events_to_front(), elog_nv_write(), find_fmap_directory(), fmap_find_region_name(), fmap_locate_area(), incoherent_mmap(), mmap_com_buf(), rdev_mmap_full(), and xlate_mmap().

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◆ rdev_mmap_full()

static void* rdev_mmap_full ( const struct region_device * rd )

inlinestatic

Definition at line 148 of file region.h.

References rdev_mmap(), and region_device_sz().

Referenced by _cbfs_alloc(), cbfs_load_and_decompress(), do_alloc(), elog_debug_dump_buffer(), elog_scan_flash(), fast_spi_get_ext_bios_window(), get_apob_from_nv_rdev(), Main(), mainboard_init(), mrc_cache_current_mmap_leak(), mrc_cache_needs_update(), program_mac_address(), spi_flash_get_mmap_windows(), update_boot_region(), and vpd_find_in().

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◆ rdev_munmap()

int rdev_munmap	(	const struct region_device *	rd,
		void *	mapping
	)

Definition at line 65 of file region.c.

References region_device_ops::munmap, NULL, region_device::ops, rdev, and rdev_root().

Referenced by cbfs_load_and_decompress(), do_alloc(), elog_debug_dump_buffer(), elog_is_buffer_clear(), elog_move_events_to_front(), elog_nv_write(), elog_put_event_buffer(), elog_scan_flash(), find_fmap_directory(), fmap_find_region_name(), fmap_locate_area(), incoherent_munmap(), mrc_cache_needs_update(), smmstore_rawread_region(), smmstore_rawwrite_region(), and vpd_find_in().

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◆ rdev_read_full()

static ssize_t rdev_read_full	(	const struct region_device *	rd,
		void *	b
	)

inlinestatic

Definition at line 166 of file region.h.

References rdev_readat(), and region_device_sz().

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◆ rdev_readat()

ssize_t rdev_readat	(	const struct region_device *	rd,
		void *	b,
		size_t	offset,
		size_t	size
	)

Definition at line 77 of file region.c.

References normalize_and_ok(), region::offset, offset, region_device::ops, rdev, rdev_root(), region_device_ops::readat, region_device::region, and region::size.

Referenced by cbfs_dev_read(), cbfs_load_and_decompress(), cbmem_add_cros_vpd(), configure_descriptor(), cse_get_sub_part_fw_version(), cse_is_rw_bp_sign_valid(), cse_sub_part_get_target_rdev(), elog_do_shrink(), elog_is_event_valid(), elog_scan_flash(), elog_smbios_write_type15(), elog_update_event_buffer_state(), fill_data_boundaries(), flashconsole_init(), fmap_add_cbmem_cache(), fmap_read_area(), get_apob_from_nv_rdev(), hash_body(), incoherent_readat(), init_vbnv(), init_vpd_rdev(), mrc_cache_load_current(), mrc_header_valid(), rdev_read_full(), read_mb(), region_file_init(), scan_end(), setup_preram_cache(), smmstore_rawread_region(), vb2ex_read_resource(), and xlate_readat().

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◆ rdev_relative_offset()

ssize_t rdev_relative_offset	(	const struct region_device *	p,
		const struct region_device *	c
	)

Definition at line 34 of file region.c.

References c, rdev_root(), region_device::region, region_device_offset(), and region_is_subregion().

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◆ rdev_writeat()

ssize_t rdev_writeat	(	const struct region_device *	rd,
		const void *	b,
		size_t	offset,
		size_t	size
	)

Definition at line 94 of file region.c.

References normalize_and_ok(), NULL, region::offset, offset, region_device::ops, rdev, rdev_root(), region_device::region, region::size, and region_device_ops::writeat.

Referenced by allocate_metadata(), commit_data(), commit_data_allocation(), configure_descriptor(), cse_copy_rw(), elog_nv_write(), elog_write_header_in_mirror(), flashconsole_tx_flush(), fmap_overwrite_area(), incoherent_writeat(), load_spd_cache(), save_fpf_state(), save_vbnv_flash(), smmstore_append_data(), smmstore_rawwrite_region(), soc_update_apob_cache(), and xlate_writeat().

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◆ region_device_end()

static size_t region_device_end ( const struct region_device * rdev )

inlinestatic

Definition at line 142 of file region.h.

References rdev, region_device_region(), and region_end().

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◆ region_device_init()

void region_device_init	(	struct region_device *	rdev,
		const struct region_device_ops *	ops,
		size_t	offset,
		size_t	size
	)

Definition at line 178 of file region.c.

References memset(), NULL, region::offset, offset, region_device::ops, ops, rdev, region_device::region, region_device::root, and region::size.

Referenced by incoherent_rdev_init(), and xlate_region_device_init().

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◆ region_device_offset()

static size_t region_device_offset ( const struct region_device * rdev )

inlinestatic

Definition at line 137 of file region.h.

References rdev, region_device_region(), and region_offset().

Referenced by elog_find_flash(), elog_flash_offset_to_address(), lb_boot_media_params(), rdev_relative_offset(), smmstore_append_data(), and soc_update_apob_cache().

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◆ region_device_region()

static const struct region* region_device_region ( const struct region_device * rdev )

inlinestatic

Definition at line 126 of file region.h.

References rdev, and region_device::region.

Referenced by boot_device_wp_region(), region_device_end(), region_device_offset(), and region_device_sz().

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◆ region_device_sz()

static size_t region_device_sz ( const struct region_device * rdev )

inlinestatic

Definition at line 132 of file region.h.

References rdev, region_device_region(), and region_sz().

Referenced by allocate_metadata(), cbfs_dev_size(), cbfs_get_boot_device(), cbfs_load_and_decompress(), cbfs_preload(), cbmem_add_cros_vpd(), cse_erase_rw_region(), cse_sub_part_trigger_update(), do_alloc(), elog_debug_dump_buffer(), elog_events_total_space(), elog_find_flash(), elog_flash_offset_to_address(), elog_init(), elog_is_buffer_clear(), elog_move_events_to_front(), elog_nv_erase(), elog_scan_flash(), elog_smbios_write_type15(), erase_nvram(), fast_spi_get_ext_bios_window(), fill_data_boundaries(), find_fmap_directory(), flashconsole_init(), flashconsole_tx_byte(), flashconsole_tx_flush(), fmap_add_cbmem_cache(), fmap_overwrite_area(), fmap_read_area(), handle_empty(), handle_need_to_empty(), hash_body(), incoherent_rdev_init(), init_vbnv(), init_vpd_rdev(), lb_boot_media_params(), load_spd_cache(), lookup_block_in_store(), lookup_store(), mainboard_init(), mmap_com_buf(), mrc_cache_current_mmap_leak(), mrc_cache_load_current(), mrc_cache_needs_update(), mrc_header_valid(), program_mac_address(), rdev_chain_full(), rdev_mmap_full(), rdev_read_full(), scan_end(), smmstore_append_data(), smmstore_clear_region(), soc_update_apob_cache(), start_apob_cache_read(), update_can_fit(), vboot_get_cbfs_boot_device(), and vpd_find_in().

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◆ region_end()

static size_t region_end ( const struct region * r )

inlinestatic

Definition at line 115 of file region.h.

References region_offset(), and region_sz().

Referenced by region_device_end(), region_is_subregion(), region_overlap(), and winbond_get_write_protection().

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◆ region_is_subregion()

int region_is_subregion	(	const struct region *	p,
		const struct region *	c
	)

Definition at line 7 of file region.c.

References c, region_end(), and region_offset().

Referenced by bios_mmap_init(), normalize_and_ok(), rdev_relative_offset(), report_fsp_output(), report_fspt_output(), spi_flash_ctrlr_protect_region(), spi_flash_is_write_protected(), spi_flash_set_write_protected(), winbond_get_write_protection(), and xlate_find_window().

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◆ region_offset()

static size_t region_offset ( const struct region * r )

inlinestatic

Definition at line 105 of file region.h.

References region::offset.

Referenced by bios_mmap_init(), boot_device_subregion(), ec_flash_write(), ec_update_image(), normalize_and_ok(), qclib_load_and_run(), region_device_offset(), region_end(), region_is_subregion(), region_overlap(), spi_flash_get_mmap_windows(), spi_flash_protect(), winbond_get_write_protection(), xlate_eraseat(), xlate_mmap(), xlate_readat(), and xlate_writeat().

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◆ region_overlap()

static bool region_overlap	(	const struct region *	r1,
		const struct region *	r2
	)

inlinestatic

Definition at line 120 of file region.h.

References region_end(), and region_offset().

Referenced by smm_region_overlaps_handler().

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◆ region_sz()

static size_t region_sz ( const struct region * r )

inlinestatic

Definition at line 110 of file region.h.

References region::size.

Referenced by bios_mmap_init(), boot_device_subregion(), incoherent_rdev_init(), qclib_load_and_run(), region_device_sz(), region_end(), spi_flash_get_mmap_windows(), spi_flash_protect(), and winbond_get_write_protection().

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◆ xlate_region_device_ro_init()

void xlate_region_device_ro_init	(	struct xlate_region_device *	xdev,
		size_t	window_count,
		const struct xlate_window *	window_arr,
		size_t	parent_size
	)

Definition at line 200 of file region.c.

References xlate_rdev_ro_ops, and xlate_region_device_init().

Referenced by bios_mmap_init().

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◆ xlate_region_device_rw_init()

void xlate_region_device_rw_init	(	struct xlate_region_device *	xdev,
		size_t	window_count,
		const struct xlate_window *	window_arr,
		size_t	parent_size
	)

Definition at line 208 of file region.c.

References xlate_rdev_rw_ops, and xlate_region_device_init().

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◆ xlate_window_init()

void xlate_window_init	(	struct xlate_window *	window,
		const struct region_device *	access_dev,
		size_t	sub_region_offset,
		size_t	sub_region_size
	)

Definition at line 216 of file region.c.

References xlate_window::access_dev, region::offset, region::size, and xlate_window::sub_region.

Referenced by bios_mmap_init(), and initialize_window().

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Variable Documentation

◆ mem_rdev_ro_ops

const struct region_device_ops mem_rdev_ro_ops

extern

Definition at line 264 of file region.c.

Referenced by mem_region_device_ro_init().

◆ mem_rdev_rw_ops

const struct region_device_ops mem_rdev_rw_ops

extern

Definition at line 264 of file region.c.

Referenced by mem_region_device_rw_init().

◆ xlate_rdev_ro_ops

const struct region_device_ops xlate_rdev_ro_ops

extern

Definition at line 425 of file region.c.

Referenced by xlate_region_device_ro_init().

◆ xlate_rdev_rw_ops

const struct region_device_ops xlate_rdev_rw_ops

extern

Definition at line 425 of file region.c.

Referenced by xlate_region_device_rw_init().

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ MEM_REGION_DEV_INIT

◆ MEM_REGION_DEV_RO_INIT

◆ MEM_REGION_DEV_RW_INIT

◆ MMAP_HELPER_DEV_INIT

◆ REGION_DEV_INIT

◆ XLATE_REGION_DEV_INIT

◆ XLATE_REGION_DEV_RO_INIT

◆ XLATE_REGION_DEV_RW_INIT

Function Documentation

◆ incoherent_rdev_init()

◆ mem_region_device_ro_init()

◆ mem_region_device_rw_init()

◆ mmap_helper_rdev_mmap()

◆ mmap_helper_rdev_munmap()

◆ rdev_chain()

◆ rdev_chain_full()

◆ rdev_chain_mem()

◆ rdev_chain_mem_rw()

◆ rdev_eraseat()

◆ rdev_mmap()

◆ rdev_mmap_full()

◆ rdev_munmap()

◆ rdev_read_full()

◆ rdev_readat()

◆ rdev_relative_offset()

◆ rdev_writeat()

◆ region_device_end()

◆ region_device_init()

◆ region_device_offset()

◆ region_device_region()

◆ region_device_sz()

◆ region_end()

◆ region_is_subregion()

◆ region_offset()

◆ region_overlap()

◆ region_sz()

◆ xlate_region_device_ro_init()

◆ xlate_region_device_rw_init()

◆ xlate_window_init()

Variable Documentation

◆ mem_rdev_ro_ops

◆ mem_rdev_rw_ops

◆ xlate_rdev_ro_ops

◆ xlate_rdev_rw_ops