drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h

Extension

.h

Size

3403 bytes

Lines

83

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• struct amdgpu_vce

Annotated Snippet

struct amdgpu_vce {
	struct amdgpu_bo	*vcpu_bo;
	uint64_t		gpu_addr;
	void			*cpu_addr;
	void			*saved_bo;
	unsigned		fw_version;
	unsigned		fb_version;
	atomic_t		handles[AMDGPU_MAX_VCE_HANDLES];
	struct drm_file		*filp[AMDGPU_MAX_VCE_HANDLES];
	uint32_t		img_size[AMDGPU_MAX_VCE_HANDLES];
	struct delayed_work	idle_work;
	struct mutex		idle_mutex;
	const struct firmware	*fw;	/* VCE firmware */
	struct amdgpu_ring	ring[AMDGPU_MAX_VCE_RINGS];
	struct amdgpu_irq_src	irq;
	unsigned		harvest_config;
	struct drm_sched_entity	entity;
	uint32_t                srbm_soft_reset;
	unsigned		num_rings;
	uint32_t		keyselect;
	struct drm_mm_node	gart_node;
};

int amdgpu_vce_early_init(struct amdgpu_device *adev);
int amdgpu_vce_sw_init(struct amdgpu_device *adev, unsigned long size);
int amdgpu_vce_sw_fini(struct amdgpu_device *adev);
int amdgpu_vce_entity_init(struct amdgpu_device *adev, struct amdgpu_ring *ring);
int amdgpu_vce_suspend(struct amdgpu_device *adev);
int amdgpu_vce_resume(struct amdgpu_device *adev);
void amdgpu_vce_free_handles(struct amdgpu_device *adev, struct drm_file *filp);
int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p, struct amdgpu_job *job,
			     struct amdgpu_ib *ib);
int amdgpu_vce_ring_parse_cs_vm(struct amdgpu_cs_parser *p,
				struct amdgpu_job *job,
				struct amdgpu_ib *ib);
void amdgpu_vce_ring_emit_ib(struct amdgpu_ring *ring, struct amdgpu_job *job,
				struct amdgpu_ib *ib, uint32_t flags);
void amdgpu_vce_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
				unsigned flags);
int amdgpu_vce_ring_test_ring(struct amdgpu_ring *ring);
int amdgpu_vce_ring_test_ib(struct amdgpu_ring *ring, long timeout);
void amdgpu_vce_ring_begin_use(struct amdgpu_ring *ring);
void amdgpu_vce_ring_end_use(struct amdgpu_ring *ring);
unsigned amdgpu_vce_ring_get_emit_ib_size(struct amdgpu_ring *ring);
unsigned amdgpu_vce_ring_get_dma_frame_size(struct amdgpu_ring *ring);
enum amdgpu_ring_priority_level amdgpu_vce_get_ring_prio(int ring);

#endif

Annotation

• Detected declarations: `struct amdgpu_vce`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: source 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.