drivers/gpu/drm/exynos/exynos_drm_drv.c

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/exynos/exynos_drm_drv.c

Extension

.c

Size

11593 bytes

Lines

483

Domain

Driver Families

Bucket

drivers/gpu

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.
• 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/component.h
• linux/dma-mapping.h
• linux/platform_device.h
• linux/pm_runtime.h
• linux/uaccess.h
• drm/clients/drm_client_setup.h
• drm/drm_atomic.h
• drm/drm_atomic_helper.h
• drm/drm_drv.h
• drm/drm_file.h
• drm/drm_fourcc.h
• drm/drm_ioctl.h
• drm/drm_probe_helper.h
• drm/drm_vblank.h
• drm/exynos_drm.h
• exynos_drm_drv.h
• exynos_drm_fb.h
• exynos_drm_fbdev.h
• exynos_drm_g2d.h
• exynos_drm_gem.h
• exynos_drm_ipp.h
• exynos_drm_plane.h
• exynos_drm_vidi.h

Detected Declarations

• struct exynos_drm_driver_info
• function Copyright
• function exynos_drm_postclose
• function exynos_drm_suspend
• function exynos_drm_resume
• function exynos_drm_bind
• function exynos_drm_unbind
• function exynos_drm_platform_probe
• function exynos_drm_platform_remove
• function exynos_drm_platform_shutdown
• function exynos_drm_unregister_devices
• function exynos_drm_register_devices
• function exynos_drm_unregister_drivers
• function exynos_drm_register_drivers
• function exynos_drm_init
• function exynos_drm_exit
• module init exynos_drm_init

Annotated Snippet

module_init(exynos_drm_init);
module_exit(exynos_drm_exit);

MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
MODULE_DESCRIPTION("Samsung SoC DRM Driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/component.h`, `linux/dma-mapping.h`, `linux/platform_device.h`, `linux/pm_runtime.h`, `linux/uaccess.h`, `drm/clients/drm_client_setup.h`, `drm/drm_atomic.h`, `drm/drm_atomic_helper.h`.
• Detected declarations: `struct exynos_drm_driver_info`, `function Copyright`, `function exynos_drm_postclose`, `function exynos_drm_suspend`, `function exynos_drm_resume`, `function exynos_drm_bind`, `function exynos_drm_unbind`, `function exynos_drm_platform_probe`, `function exynos_drm_platform_remove`, `function exynos_drm_platform_shutdown`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.