linux/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/mem.c

/*
 * Copyright 2017 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */
#define nvkm_mem(p) …
#include "mem.h"

#include <core/memory.h>

#include <nvif/if000a.h>
#include <nvif/unpack.h>

struct nvkm_mem { … };

static enum nvkm_memory_target
nvkm_mem_target(struct nvkm_memory *memory)
{ … }

static u8
nvkm_mem_page(struct nvkm_memory *memory)
{ … }

static u64
nvkm_mem_addr(struct nvkm_memory *memory)
{ … }

static u64
nvkm_mem_size(struct nvkm_memory *memory)
{ … }

static int
nvkm_mem_map_dma(struct nvkm_memory *memory, u64 offset, struct nvkm_vmm *vmm,
		 struct nvkm_vma *vma, void *argv, u32 argc)
{ … }

static void *
nvkm_mem_dtor(struct nvkm_memory *memory)
{ … }

static const struct nvkm_memory_func
nvkm_mem_dma = …;

static int
nvkm_mem_map_sgl(struct nvkm_memory *memory, u64 offset, struct nvkm_vmm *vmm,
		 struct nvkm_vma *vma, void *argv, u32 argc)
{ … }

static const struct nvkm_memory_func
nvkm_mem_sgl = …;

int
nvkm_mem_map_host(struct nvkm_memory *memory, void **pmap)
{ … }

static int
nvkm_mem_new_host(struct nvkm_mmu *mmu, int type, u8 page, u64 size,
		  void *argv, u32 argc, struct nvkm_memory **pmemory)
{ … }

int
nvkm_mem_new_type(struct nvkm_mmu *mmu, int type, u8 page, u64 size,
		  void *argv, u32 argc, struct nvkm_memory **pmemory)
{ … }