drivers/acpi/nfit/nfit.h

Source file repositories/reference/linux-study-clean/drivers/acpi/nfit/nfit.h

File Facts

System
Linux kernel
Corpus path
drivers/acpi/nfit/nfit.h
Extension
.h
Size
9832 bytes
Lines
353
Domain
Driver Families
Bucket
drivers/acpi
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct nfit_spa {
	struct list_head list;
	struct nd_region *nd_region;
	unsigned long ars_state;
	u32 clear_err_unit;
	u32 max_ars;
	struct acpi_nfit_system_address spa[];
};

struct nfit_dcr {
	struct list_head list;
	struct acpi_nfit_control_region dcr[];
};

struct nfit_bdw {
	struct list_head list;
	struct acpi_nfit_data_region bdw[];
};

struct nfit_idt {
	struct list_head list;
	struct acpi_nfit_interleave idt[];
};

struct nfit_flush {
	struct list_head list;
	struct acpi_nfit_flush_address flush[];
};

struct nfit_memdev {
	struct list_head list;
	struct acpi_nfit_memory_map memdev[];
};

enum nfit_mem_flags {
	NFIT_MEM_LSR,
	NFIT_MEM_LSW,
	NFIT_MEM_DIRTY,
	NFIT_MEM_DIRTY_COUNT,
};

#define NFIT_DIMM_ID_LEN	22

/* assembled tables for a given dimm/memory-device */
struct nfit_mem {
	struct nvdimm *nvdimm;
	struct acpi_nfit_memory_map *memdev_dcr;
	struct acpi_nfit_memory_map *memdev_pmem;
	struct acpi_nfit_control_region *dcr;
	struct acpi_nfit_system_address *spa_dcr;
	struct acpi_nfit_interleave *idt_dcr;
	struct kernfs_node *flags_attr;
	struct nfit_flush *nfit_flush;
	struct list_head list;
	struct acpi_device *adev;
	struct acpi_nfit_desc *acpi_desc;
	enum nvdimm_fwa_state fwa_state;
	enum nvdimm_fwa_result fwa_result;
	int fwa_count;
	char id[NFIT_DIMM_ID_LEN+1];
	struct resource *flush_wpq;
	unsigned long dsm_mask;
	unsigned long flags;
	u32 dirty_shutdown;
	int family;
};

enum scrub_flags {
	ARS_BUSY,
	ARS_CANCEL,
	ARS_VALID,
	ARS_POLL,
};

struct acpi_nfit_desc {
	struct nvdimm_bus_descriptor nd_desc;
	struct acpi_table_header acpi_header;
	struct mutex init_mutex;
	struct list_head memdevs;
	struct list_head flushes;
	struct list_head dimms;
	struct list_head spas;
	struct list_head dcrs;
	struct list_head bdws;
	struct list_head idts;
	struct nvdimm_bus *nvdimm_bus;
	struct device *dev;
	struct nd_cmd_ars_status *ars_status;
	struct nfit_spa *scrub_spa;
	struct delayed_work dwork;

Annotation

Implementation Notes