drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.h
Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.h
File Facts
- System
- Linux kernel
- Corpus path
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.h- Extension
.h- Size
- 3417 bytes
- Lines
- 105
- Domain
- Driver Families
- Bucket
- drivers/gpu
- 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.
- 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 or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
irq_types.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
#ifndef __AMDGPU_DM_IRQ_H__
#define __AMDGPU_DM_IRQ_H__
#include "irq_types.h" /* DAL irq definitions */
/*
* Display Manager IRQ-related interfaces (for use by DAL).
*/
/**
* amdgpu_dm_irq_init - Initialize internal structures of 'amdgpu_dm_irq'.
*
* This function should be called exactly once - during DM initialization.
*
* Returns:
* 0 - success
* non-zero - error
*/
int amdgpu_dm_irq_init(struct amdgpu_device *adev);
/**
* amdgpu_dm_irq_fini - deallocate internal structures of 'amdgpu_dm_irq'.
*
* This function should be called exactly once - during DM destruction.
*
*/
void amdgpu_dm_irq_fini(struct amdgpu_device *adev);
/**
* amdgpu_dm_irq_register_interrupt - register irq handler for Display block.
*
* @adev: AMD DRM device
* @int_params: parameters for the irq
* @ih: pointer to the irq hander function
* @handler_args: arguments which will be passed to ih
*
* Returns:
* IRQ Handler Index on success.
* NULL on failure.
*
* Cannot be called from an interrupt handler.
*/
void *amdgpu_dm_irq_register_interrupt(struct amdgpu_device *adev,
struct dc_interrupt_params *int_params,
void (*ih)(void *),
void *handler_args);
/**
* amdgpu_dm_irq_unregister_interrupt - unregister handler which was registered
* by amdgpu_dm_irq_register_interrupt().
*
* @adev: AMD DRM device.
* @ih_index: irq handler index which was returned by
* amdgpu_dm_irq_register_interrupt
*/
void amdgpu_dm_irq_unregister_interrupt(struct amdgpu_device *adev,
enum dc_irq_source irq_source,
void *ih_index);
void amdgpu_dm_set_irq_funcs(struct amdgpu_device *adev);
void amdgpu_dm_outbox_init(struct amdgpu_device *adev);
void amdgpu_dm_hpd_init(struct amdgpu_device *adev);
void amdgpu_dm_hpd_fini(struct amdgpu_device *adev);
/**
* amdgpu_dm_irq_suspend - disable ASIC interrupt during suspend.
*
*/
void amdgpu_dm_irq_suspend(struct amdgpu_device *adev);
/**
* amdgpu_dm_irq_resume_early - enable HPDRX ASIC interrupts during resume.
* amdgpu_dm_irq_resume - enable ASIC interrupt during resume.
*
*/
void amdgpu_dm_irq_resume_early(struct amdgpu_device *adev);
void amdgpu_dm_irq_resume_late(struct amdgpu_device *adev);
#endif /* __AMDGPU_DM_IRQ_H__ */
Annotation
- Immediate include surface: `irq_types.h`.
- Atlas domain: Driver Families / drivers/gpu.
- Implementation status: source 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.