drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c

Extension

.c

Size

10834 bytes

Lines

465

Domain

Driver Families

Bucket

drivers/gpu

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.
• 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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/aperture.h
• linux/module.h
• linux/pci.h
• drm/clients/drm_client_setup.h
• drm/drm_atomic_helper.h
• drm/drm_drv.h
• drm/drm_fbdev_ttm.h
• drm/drm_gem_framebuffer_helper.h
• drm/drm_gem_vram_helper.h
• drm/drm_managed.h
• drm/drm_module.h
• drm/drm_vblank.h
• drm/drm_probe_helper.h
• hibmc_drm_drv.h
• hibmc_drm_regs.h
• dp/dp_reg.h

Detected Declarations

• function hibmc_interrupt
• function hibmc_dp_interrupt
• function hibmc_dumb_create
• function hibmc_pm_suspend
• function hibmc_pm_resume
• function hibmc_kms_init
• function hibmc_set_power_mode
• function hibmc_set_current_gate
• function hibmc_display_ctrl
• function hibmc_hw_config
• function hibmc_hw_map
• function hibmc_hw_init
• function hibmc_unload
• function hibmc_msi_init
• function hibmc_load
• function hibmc_pci_probe
• function hibmc_pci_remove
• function hibmc_pci_shutdown

Annotated Snippet

static struct pci_driver hibmc_pci_driver = {
	.name =		"hibmc-drm",
	.id_table =	hibmc_pci_table,
	.probe =	hibmc_pci_probe,
	.remove =	hibmc_pci_remove,
	.shutdown =	hibmc_pci_shutdown,
	.driver.pm =    &hibmc_pm_ops,
};

drm_module_pci_driver(hibmc_pci_driver);

MODULE_DEVICE_TABLE(pci, hibmc_pci_table);
MODULE_AUTHOR("RongrongZou <zourongrong@huawei.com>");
MODULE_DESCRIPTION("DRM Driver for Hisilicon Hibmc");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/aperture.h`, `linux/module.h`, `linux/pci.h`, `drm/clients/drm_client_setup.h`, `drm/drm_atomic_helper.h`, `drm/drm_drv.h`, `drm/drm_fbdev_ttm.h`, `drm/drm_gem_framebuffer_helper.h`.
• Detected declarations: `function hibmc_interrupt`, `function hibmc_dp_interrupt`, `function hibmc_dumb_create`, `function hibmc_pm_suspend`, `function hibmc_pm_resume`, `function hibmc_kms_init`, `function hibmc_set_power_mode`, `function hibmc_set_current_gate`, `function hibmc_display_ctrl`, `function hibmc_hw_config`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: pattern 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.