drivers/ata/pata_octeon_cf.c

File Facts

System

Linux kernel

Corpus path

drivers/ata/pata_octeon_cf.c

Extension

.c

Size

27093 bytes

Lines

1030

Domain

Driver Families

Bucket

drivers/ata

Inferred role

Driver Families: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• 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

• linux/kernel.h
• linux/module.h
• linux/libata.h
• linux/hrtimer.h
• linux/slab.h
• linux/irq.h
• linux/of.h
• linux/of_address.h
• linux/of_platform.h
• linux/platform_device.h
• scsi/scsi_host.h
• trace/events/libata.h
• asm/byteorder.h
• asm/octeon/octeon.h

Detected Declarations

• struct octeon_cf_port
• function ns_to_tim_reg
• function octeon_cf_set_boot_reg_cfg
• function octeon_cf_set_piomode
• function octeon_cf_set_dmamode
• function octeon_cf_data_xfer8
• function octeon_cf_data_xfer16
• function octeon_cf_tf_read16
• function octeon_cf_check_status16
• function octeon_cf_softreset16
• function octeon_cf_tf_load16
• function octeon_cf_dev_select
• function octeon_cf_exec_command16
• function octeon_cf_ata_port_noaction
• function octeon_cf_dma_start
• function spin_lock_irqsave
• function octeon_cf_interrupt
• function octeon_cf_delayed_finish
• function octeon_cf_dev_config
• function octeon_cf_check_atapi_dma
• function octeon_cf_qc_issue
• function octeon_cf_probe
• function octeon_cf_shutdown
• function octeon_cf_init
• module init octeon_cf_init

Annotated Snippet

module_init(octeon_cf_init);

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/libata.h`, `linux/hrtimer.h`, `linux/slab.h`, `linux/irq.h`, `linux/of.h`, `linux/of_address.h`.
• Detected declarations: `struct octeon_cf_port`, `function ns_to_tim_reg`, `function octeon_cf_set_boot_reg_cfg`, `function octeon_cf_set_piomode`, `function octeon_cf_set_dmamode`, `function octeon_cf_data_xfer8`, `function octeon_cf_data_xfer16`, `function octeon_cf_tf_read16`, `function octeon_cf_check_status16`, `function octeon_cf_softreset16`.
• Atlas domain: Driver Families / drivers/ata.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.