drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm20b.c
Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm20b.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm20b.c- Extension
.c- Size
- 2577 bytes
- Lines
- 73
- 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.h
Detected Declarations
function gm20b_vmm_newfunction gm20b_vmm_new_fixed
Annotated Snippet
#include "vmm.h"
static const struct nvkm_vmm_func
gm20b_vmm_17 = {
.join = gm200_vmm_join,
.part = gf100_vmm_part,
.aper = gk20a_vmm_aper,
.valid = gf100_vmm_valid,
.flush = gf100_vmm_flush,
.invalidate_pdb = gf100_vmm_invalidate_pdb,
.page = {
{ 27, &gm200_vmm_desc_17_17[1], NVKM_VMM_PAGE_Sxxx },
{ 17, &gm200_vmm_desc_17_17[0], NVKM_VMM_PAGE_SxHC },
{ 12, &gm200_vmm_desc_17_12[0], NVKM_VMM_PAGE_SxHx },
{}
}
};
static const struct nvkm_vmm_func
gm20b_vmm_16 = {
.join = gm200_vmm_join,
.part = gf100_vmm_part,
.aper = gk20a_vmm_aper,
.valid = gf100_vmm_valid,
.flush = gf100_vmm_flush,
.invalidate_pdb = gf100_vmm_invalidate_pdb,
.page = {
{ 27, &gm200_vmm_desc_16_16[1], NVKM_VMM_PAGE_Sxxx },
{ 16, &gm200_vmm_desc_16_16[0], NVKM_VMM_PAGE_SxHC },
{ 12, &gm200_vmm_desc_16_12[0], NVKM_VMM_PAGE_SxHx },
{}
}
};
int
gm20b_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 gm200_vmm_new_(&gm20b_vmm_16, &gm20b_vmm_17, mmu, managed, addr,
size, argv, argc, key, name, pvmm);
}
int
gm20b_vmm_new_fixed(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 gf100_vmm_new_(&gm20b_vmm_16, &gm20b_vmm_17, mmu, managed, addr,
size, argv, argc, key, name, pvmm);
}
Annotation
- Immediate include surface: `vmm.h`.
- Detected declarations: `function gm20b_vmm_new`, `function gm20b_vmm_new_fixed`.
- 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.