1/*
2 * Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
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 (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 *
23 * Authors:
24 *    Eddie Dong <eddie.dong@intel.com>
25 *    Kevin Tian <kevin.tian@intel.com>
26 *
27 * Contributors:
28 *    Zhi Wang <zhi.a.wang@intel.com>
29 *    Changbin Du <changbin.du@intel.com>
30 *    Zhenyu Wang <zhenyuw@linux.intel.com>
31 *    Tina Zhang <tina.zhang@intel.com>
32 *    Bing Niu <bing.niu@intel.com>
33 *
34 */
35
36#ifndef __GVT_RENDER_H__
37#define __GVT_RENDER_H__
38
39#include <linux/types.h>
40
41#include "gt/intel_engine_regs.h"
42#include "gt/intel_engine_types.h"
43#include "gt/intel_lrc_reg.h"
44
45struct i915_request;
46struct intel_context;
47struct intel_engine_cs;
48struct intel_gvt;
49struct intel_vgpu;
50
51struct engine_mmio {
52	enum intel_engine_id id;
53	i915_reg_t reg;
54	u32 mask;
55	bool in_context;
56	u32 value;
57};
58
59void intel_gvt_switch_mmio(struct intel_vgpu *pre,
60			   struct intel_vgpu *next,
61			   const struct intel_engine_cs *engine);
62
63void intel_gvt_init_engine_mmio_context(struct intel_gvt *gvt);
64
65bool is_inhibit_context(struct intel_context *ce);
66
67int intel_vgpu_restore_inhibit_context(struct intel_vgpu *vgpu,
68				       struct i915_request *req);
69
70#define IS_RESTORE_INHIBIT(a) \
71	IS_MASKED_BITS_ENABLED(a, CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT)
72
73#endif
74