drivers/gpu/drm/nouveau/nvkm/subdev/pci/g92.c

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/nouveau/nvkm/subdev/pci/g92.c

Extension

.c

Size

1934 bytes

Lines

58

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

• priv.h

Detected Declarations

• function files
• function g92_pci_new

Annotated Snippet

#include "priv.h"

int
g92_pcie_version_supported(struct nvkm_pci *pci)
{
	if ((nvkm_pci_rd32(pci, 0x460) & 0x200) == 0x200)
		return 2;
	return 1;
}

static const struct nvkm_pci_func
g92_pci_func = {
	.cfg = { .addr = 0x088000, .size = 0x1000 },

	.init = g84_pci_init,
	.msi_rearm = nv46_pci_msi_rearm,

	.pcie.init = g84_pcie_init,
	.pcie.set_link = g84_pcie_set_link,

	.pcie.max_speed = g84_pcie_max_speed,
	.pcie.cur_speed = g84_pcie_cur_speed,

	.pcie.set_version = g84_pcie_set_version,
	.pcie.version = g84_pcie_version,
	.pcie.version_supported = g92_pcie_version_supported,
};

int
g92_pci_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
	    struct nvkm_pci **ppci)
{
	return nvkm_pci_new_(&g92_pci_func, device, type, inst, ppci);
}

Annotation

• Immediate include surface: `priv.h`.
• Detected declarations: `function files`, `function g92_pci_new`.
• 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.