linux/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.c

/*
 * Copyright 2015 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.
 *
 * Authors: Ben Skeggs <[email protected]>
 */
#define nvkm_vram(p) …
#include "ram.h"

#include <core/memory.h>
#include <subdev/instmem.h>
#include <subdev/mmu.h>

struct nvkm_vram { … };

static int
nvkm_vram_kmap(struct nvkm_memory *memory, struct nvkm_memory **pmemory)
{ … }

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

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

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

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

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

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

static const struct nvkm_memory_func
nvkm_vram = …;

int
nvkm_ram_wrap(struct nvkm_device *device, u64 addr, u64 size,
	      struct nvkm_memory **pmemory)
{ … }

int
nvkm_ram_get(struct nvkm_device *device, u8 heap, u8 type, u8 rpage, u64 size,
	     bool contig, bool back, struct nvkm_memory **pmemory)
{ … }

int
nvkm_ram_init(struct nvkm_ram *ram)
{ … }

void
nvkm_ram_del(struct nvkm_ram **pram)
{ … }

int
nvkm_ram_ctor(const struct nvkm_ram_func *func, struct nvkm_fb *fb,
	      enum nvkm_ram_type type, u64 size, struct nvkm_ram *ram)
{ … }

int
nvkm_ram_new_(const struct nvkm_ram_func *func, struct nvkm_fb *fb,
	      enum nvkm_ram_type type, u64 size, struct nvkm_ram **pram)
{ … }