drivers/gpu/drm/amd/amdgpu/vcn_v2_0.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/amd/amdgpu/vcn_v2_0.h

Extension

.h

Size

2761 bytes

Lines

56

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

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

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __VCN_V2_0_H__
#define __VCN_V2_0_H__

extern void vcn_v2_0_dec_ring_insert_start(struct amdgpu_ring *ring);
extern void vcn_v2_0_dec_ring_insert_end(struct amdgpu_ring *ring);
extern void vcn_v2_0_dec_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count);
extern void vcn_v2_0_dec_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
				unsigned flags);
extern void vcn_v2_0_dec_ring_emit_ib(struct amdgpu_ring *ring, struct amdgpu_job *job,
				struct amdgpu_ib *ib, uint32_t flags);
extern void vcn_v2_0_dec_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
				uint32_t val, uint32_t mask);
extern void vcn_v2_0_dec_ring_emit_vm_flush(struct amdgpu_ring *ring,
				unsigned vmid, uint64_t pd_addr);
extern void vcn_v2_0_dec_ring_emit_wreg(struct amdgpu_ring *ring,
				uint32_t reg, uint32_t val);
extern int vcn_v2_0_dec_ring_test_ring(struct amdgpu_ring *ring);

extern void vcn_v2_0_enc_ring_insert_end(struct amdgpu_ring *ring);
extern void vcn_v2_0_enc_ring_emit_fence(struct amdgpu_ring *ring, u64 addr,
				u64 seq, unsigned flags);
extern void vcn_v2_0_enc_ring_emit_ib(struct amdgpu_ring *ring, struct amdgpu_job *job,
				struct amdgpu_ib *ib, uint32_t flags);
extern void vcn_v2_0_enc_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
				uint32_t val, uint32_t mask);
extern void vcn_v2_0_enc_ring_emit_vm_flush(struct amdgpu_ring *ring,
				unsigned int vmid, uint64_t pd_addr);
extern void vcn_v2_0_enc_ring_emit_wreg(struct amdgpu_ring *ring, uint32_t reg, uint32_t val);

extern const struct amdgpu_ip_block_version vcn_v2_0_ip_block;

#endif /* __VCN_V2_0_H__ */

Annotation

• 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.