path: root/drivers/gpu/drm/nouveau/nouveau_drv.h

/*
 * Copyright 2005 Stephane Marchesin.
 * All Rights Reserved.
 *
 * 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 (including the next
 * paragraph) 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
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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.
 */

#ifndef __NOUVEAU_DRV_H__
#define __NOUVEAU_DRV_H__

#define DRIVER_AUTHOR		"Stephane Marchesin"
#define DRIVER_EMAIL		"dri-devel@lists.sourceforge.net"

#define DRIVER_NAME		"nouveau"
#define DRIVER_DESC		"nVidia Riva/TNT/GeForce"
#define DRIVER_DATE		"20090420"

#define DRIVER_MAJOR		0
#define DRIVER_MINOR		0
#define DRIVER_PATCHLEVEL	15

#define NOUVEAU_FAMILY   0x0000FFFF
#define NOUVEAU_FLAGS    0xFFFF0000

#include "ttm/ttm_bo_api.h"
#include "ttm/ttm_bo_driver.h"
#include "ttm/ttm_placement.h"
#include "ttm/ttm_memory.h"
#include "ttm/ttm_module.h"

struct nouveau_fpriv {
	struct ttm_object_file *tfile;
};

#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)

#include "nouveau_drm.h"
#include "nouveau_reg.h"
#include "nouveau_bios.h"

#define MAX_NUM_DCB_ENTRIES 16

#define NOUVEAU_MAX_CHANNEL_NR 128

#define NV50_VM_MAX_VRAM (2*1024*1024*1024ULL)
#define NV50_VM_BLOCK    (512*1024*1024ULL)
#define NV50_VM_VRAM_NR  (NV50_VM_MAX_VRAM / NV50_VM_BLOCK)

struct nouveau_bo {
	struct ttm_buffer_object bo;
	struct ttm_placement placement;
	u32 placements[3];
	struct ttm_bo_kmap_obj kmap;
	struct list_head head;

	/* protected by ttm_bo_reserve() */
	struct drm_file *reserved_by;
	struct list_head entry;
	int pbbo_index;

	struct nouveau_channel *channel;

	bool mappable;
	bool no_vm;

	uint32_t tile_mode;
	uint32_t tile_flags;

	struct drm_gem_object *gem;
	struct drm_file *cpu_filp;
	int pin_refcnt;
};

static inline struct nouveau_bo *
nouveau_bo(struct ttm_buffer_object *bo)
{
	return container_of(bo, struct nouveau_bo, bo);
}

static inline struct nouveau_bo *
nouveau_gem_object(struct drm_gem_object *gem)
{
	return gem ? gem->driver_private : NULL;
}

/* TODO: submit equivalent to TTM generic API upstream? */
static inline void __iomem *
nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
{
	bool is_iomem;
	void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
						&nvbo->kmap, &is_iomem);
	WARN_ON_ONCE(ioptr && !is_iomem);
	return ioptr;
}

struct mem_block {
	struct mem_block *next;
	struct mem_block *prev;
	uint64_t start;
	uint64_t size;
	struct drm_file *file_priv; /* NULL: free, -1: heap, other: real files */
};