drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk20a.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk20a.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk20a.c
Extension
.c
Size
2328 bytes
Lines
74
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"

#include <core/memory.h>

int
gk20a_vmm_aper(enum nvkm_memory_target target)
{
	switch (target) {
	case NVKM_MEM_TARGET_NCOH: return 0;
	default:
		return -EINVAL;
	}
}

static const struct nvkm_vmm_func
gk20a_vmm_17 = {
	.join = gf100_vmm_join,
	.part = gf100_vmm_part,
	.aper = gf100_vmm_aper,
	.valid = gf100_vmm_valid,
	.flush = gf100_vmm_flush,
	.invalidate_pdb = gf100_vmm_invalidate_pdb,
	.page = {
		{ 17, &gk104_vmm_desc_17_17[0], NVKM_VMM_PAGE_xxHC },
		{ 12, &gk104_vmm_desc_17_12[0], NVKM_VMM_PAGE_xxHx },
		{}
	}
};

static const struct nvkm_vmm_func
gk20a_vmm_16 = {
	.join = gf100_vmm_join,
	.part = gf100_vmm_part,
	.aper = gf100_vmm_aper,
	.valid = gf100_vmm_valid,
	.flush = gf100_vmm_flush,
	.invalidate_pdb = gf100_vmm_invalidate_pdb,
	.page = {
		{ 16, &gk104_vmm_desc_16_16[0], NVKM_VMM_PAGE_xxHC },
		{ 12, &gk104_vmm_desc_16_12[0], NVKM_VMM_PAGE_xxHx },
		{}
	}
};

int
gk20a_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 gf100_vmm_new_(&gk20a_vmm_16, &gk20a_vmm_17, mmu, managed, addr,
			      size, argv, argc, key, name, pvmm);
}

Annotation

Implementation Notes