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.

Dependency Surface

Detected Declarations

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

Implementation Notes