drivers/ufs/host/ufshcd-pci.c

File Facts

System

Linux kernel

Corpus path

drivers/ufs/host/ufshcd-pci.c

Extension

.c

Size

18368 bytes

Lines

719

Domain

Driver Families

Bucket

drivers/ufs

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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.

• 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.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• ufs/ufshcd.h
• linux/delay.h
• linux/module.h
• linux/pci.h
• linux/pm_runtime.h
• linux/pm_qos.h
• linux/suspend.h
• linux/debugfs.h
• linux/uuid.h
• linux/acpi.h
• linux/gpio/consumer.h

Detected Declarations

• struct intel_host
• enum intel_ufs_dsm_func_id
• function __intel_dsm_supported
• function __intel_dsm
• function intel_dsm
• function intel_dsm_init
• function ufs_intel_hce_enable_notify
• function ufs_intel_disable_lcc
• function ufs_intel_link_startup_notify
• function ufs_intel_set_lanes
• function ufs_intel_lkf_pwr_change_notify
• function ufs_intel_lkf_apply_dev_quirks
• function intel_cache_ltr
• function intel_ltr_set
• function intel_ltr_expose
• function intel_ltr_hide
• function intel_add_debugfs
• function intel_remove_debugfs
• function ufs_intel_device_reset
• function ufs_intel_common_init
• function ufs_intel_common_exit
• function ufs_intel_resume
• function ufs_intel_ehl_init
• function ufs_intel_lkf_init
• function ufs_intel_adl_init
• function ufs_intel_mtl_init
• function ufs_qemu_get_hba_mac
• function ufs_qemu_mcq_config_resource
• function ufs_qemu_op_runtime_config
• function ufshcd_pci_restore
• function ufs_intel_suspend_prepare
• function s2idle
• function ufs_intel_resume_complete
• function ufshcd_pci_suspend_prepare
• function ufshcd_pci_resume_complete
• function ufshcd_pci_remove
• function ufshcd_pci_probe

Annotated Snippet

static struct pci_driver ufshcd_pci_driver = {
	.name = UFSHCD,
	.id_table = ufshcd_pci_tbl,
	.probe = ufshcd_pci_probe,
	.remove = ufshcd_pci_remove,
	.driver = {
		.pm = &ufshcd_pci_pm_ops
	},
};

module_pci_driver(ufshcd_pci_driver);

MODULE_AUTHOR("Santosh Yaragnavi <santosh.sy@samsung.com>");
MODULE_AUTHOR("Vinayak Holikatti <h.vinayak@samsung.com>");
MODULE_DESCRIPTION("UFS host controller PCI glue driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `ufs/ufshcd.h`, `linux/delay.h`, `linux/module.h`, `linux/pci.h`, `linux/pm_runtime.h`, `linux/pm_qos.h`, `linux/suspend.h`, `linux/debugfs.h`.
• Detected declarations: `struct intel_host`, `enum intel_ufs_dsm_func_id`, `function __intel_dsm_supported`, `function __intel_dsm`, `function intel_dsm`, `function intel_dsm_init`, `function ufs_intel_hce_enable_notify`, `function ufs_intel_disable_lcc`, `function ufs_intel_link_startup_notify`, `function ufs_intel_set_lanes`.
• Atlas domain: Driver Families / drivers/ufs.
• Implementation status: pattern implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.