1/*
  2 * Copyright 2013 Red Hat Inc.
  3 *
  4 * Permission is hereby granted, free of charge, to any person obtaining a
  5 * copy of this software and associated documentation files (the "Software"),
  6 * to deal in the Software without restriction, including without limitation
  7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  8 * and/or sell copies of the Software, and to permit persons to whom the
  9 * Software is furnished to do so, subject to the following conditions:
 10 *
 11 * The above copyright notice and this permission notice shall be included in
 12 * all copies or substantial portions of the Software.
 13 *
 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 20 * OTHER DEALINGS IN THE SOFTWARE.
 21 *
 22 * Authors: Dave Airlie
 23 *          Alon Levy
 24 */
 25#ifndef QXL_OBJECT_H
 26#define QXL_OBJECT_H
 27
 28#include "qxl_drv.h"
 29
 30static inline int qxl_bo_reserve(struct qxl_bo *bo, bool no_wait)
 31{
 32	int r;
 33
 34	r = ttm_bo_reserve(&bo->tbo, true, no_wait, NULL);
 35	if (unlikely(r != 0)) {
 36		if (r != -ERESTARTSYS) {
 37			struct drm_device *ddev = bo->tbo.base.dev;
 38
 39			dev_err(ddev->dev, "%p reserve failed\n", bo);
 40		}
 41		return r;
 42	}
 43	return 0;
 44}
 45
 46static inline void qxl_bo_unreserve(struct qxl_bo *bo)
 47{
 48	ttm_bo_unreserve(&bo->tbo);
 49}
 50
 51static inline u64 qxl_bo_gpu_offset(struct qxl_bo *bo)
 52{
 53	return bo->tbo.offset;
 54}
 55
 56static inline unsigned long qxl_bo_size(struct qxl_bo *bo)
 57{
 58	return bo->tbo.num_pages << PAGE_SHIFT;
 59}
 60
 61static inline u64 qxl_bo_mmap_offset(struct qxl_bo *bo)
 62{
 63	return drm_vma_node_offset_addr(&bo->tbo.base.vma_node);
 64}
 65
 66static inline int qxl_bo_wait(struct qxl_bo *bo, u32 *mem_type,
 67			      bool no_wait)
 68{
 69	int r;
 70
 71	r = ttm_bo_reserve(&bo->tbo, true, no_wait, NULL);
 72	if (unlikely(r != 0)) {
 73		if (r != -ERESTARTSYS) {
 74			struct drm_device *ddev = bo->tbo.base.dev;
 75
 76			dev_err(ddev->dev, "%p reserve failed for wait\n",
 77				bo);
 78		}
 79		return r;
 80	}
 81	if (mem_type)
 82		*mem_type = bo->tbo.mem.mem_type;
 83
 84	r = ttm_bo_wait(&bo->tbo, true, no_wait);
 85	ttm_bo_unreserve(&bo->tbo);
 86	return r;
 87}
 88
 89extern int qxl_bo_create(struct qxl_device *qdev,
 90			 unsigned long size,
 91			 bool kernel, bool pinned, u32 domain,
 92			 struct qxl_surface *surf,
 93			 struct qxl_bo **bo_ptr);
 94extern int qxl_bo_kmap(struct qxl_bo *bo, void **ptr);
 95extern void qxl_bo_kunmap(struct qxl_bo *bo);
 96void *qxl_bo_kmap_atomic_page(struct qxl_device *qdev, struct qxl_bo *bo, int page_offset);
 97void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev, struct qxl_bo *bo, void *map);
 98extern struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo);
 99extern void qxl_bo_unref(struct qxl_bo **bo);
100extern int qxl_bo_pin(struct qxl_bo *bo);
101extern int qxl_bo_unpin(struct qxl_bo *bo);
102extern void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain, bool pinned);
103extern bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo);
104
105#endif