linux/drivers/gpu/drm/qxl/qxl_ttm.c

/*
 * Copyright 2013 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: Dave Airlie
 *          Alon Levy
 */

#include <linux/delay.h>

#include <drm/drm.h>
#include <drm/drm_file.h>
#include <drm/drm_debugfs.h>
#include <drm/qxl_drm.h>
#include <drm/ttm/ttm_bo.h>
#include <drm/ttm/ttm_placement.h>
#include <drm/ttm/ttm_range_manager.h>
#include <drm/ttm/ttm_tt.h>

#include "qxl_drv.h"
#include "qxl_object.h"

static struct qxl_device *qxl_get_qdev(struct ttm_device *bdev)
{ … }

static void qxl_evict_flags(struct ttm_buffer_object *bo,
				struct ttm_placement *placement)
{ … }

int qxl_ttm_io_mem_reserve(struct ttm_device *bdev,
			   struct ttm_resource *mem)
{ … }

/*
 * TTM backend functions.
 */
static void qxl_ttm_backend_destroy(struct ttm_device *bdev, struct ttm_tt *ttm)
{ … }

static struct ttm_tt *qxl_ttm_tt_create(struct ttm_buffer_object *bo,
					uint32_t page_flags)
{ … }

static void qxl_bo_move_notify(struct ttm_buffer_object *bo,
			       struct ttm_resource *new_mem)
{ … }

static int qxl_bo_move(struct ttm_buffer_object *bo, bool evict,
		       struct ttm_operation_ctx *ctx,
		       struct ttm_resource *new_mem,
		       struct ttm_place *hop)
{ … }

static void qxl_bo_delete_mem_notify(struct ttm_buffer_object *bo)
{ … }

static struct ttm_device_funcs qxl_bo_driver = …;

static int qxl_ttm_init_mem_type(struct qxl_device *qdev,
				 unsigned int type,
				 uint64_t size)
{ … }

int qxl_ttm_init(struct qxl_device *qdev)
{ … }

void qxl_ttm_fini(struct qxl_device *qdev)
{ … }

void qxl_ttm_debugfs_init(struct qxl_device *qdev)
{ … }