drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgv100.c
Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgv100.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgv100.c- Extension
.c- Size
- 2860 bytes
- Lines
- 90
- 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
vmm.hsubdev/fb.hsubdev/ltc.hnvif/ifc00d.hnvif/unpack.h
Detected Declarations
function filesfunction gv100_vmm_new
Annotated Snippet
if (mask & BIT_ULL(i)) {
nvkm_wo32(inst, 0x2a4 + (i * 0x10), data[1]);
nvkm_wo32(inst, 0x2a0 + (i * 0x10), data[0]);
} else {
nvkm_wo32(inst, 0x2a4 + (i * 0x10), 0x00000001);
nvkm_wo32(inst, 0x2a0 + (i * 0x10), 0x00000001);
}
nvkm_wo32(inst, 0x2a8 + (i * 0x10), 0x00000000);
}
nvkm_wo32(inst, 0x298, lower_32_bits(mask));
nvkm_wo32(inst, 0x29c, upper_32_bits(mask));
nvkm_done(inst);
return 0;
}
static const struct nvkm_vmm_func
gv100_vmm = {
.join = gv100_vmm_join,
.part = gf100_vmm_part,
.aper = gf100_vmm_aper,
.valid = gp100_vmm_valid,
.flush = gp100_vmm_flush,
.mthd = gp100_vmm_mthd,
.invalidate_pdb = gp100_vmm_invalidate_pdb,
.page = {
{ 47, &gp100_vmm_desc_16[4], NVKM_VMM_PAGE_Sxxx },
{ 38, &gp100_vmm_desc_16[3], NVKM_VMM_PAGE_Sxxx },
{ 29, &gp100_vmm_desc_16[2], NVKM_VMM_PAGE_Sxxx },
{ 21, &gp100_vmm_desc_16[1], NVKM_VMM_PAGE_SVxC },
{ 16, &gp100_vmm_desc_16[0], NVKM_VMM_PAGE_SVxC },
{ 12, &gp100_vmm_desc_12[0], NVKM_VMM_PAGE_SVHx },
{}
}
};
int
gv100_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
void *argv, u32 argc, struct lock_class_key *key,
const char *name, struct nvkm_vmm **pvmm)
{
return gp100_vmm_new_(&gv100_vmm, mmu, managed, addr, size,
argv, argc, key, name, pvmm);
}
Annotation
- Immediate include surface: `vmm.h`, `subdev/fb.h`, `subdev/ltc.h`, `nvif/ifc00d.h`, `nvif/unpack.h`.
- Detected declarations: `function files`, `function gv100_vmm_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.