1/*	$NetBSD: mmio_context.h,v 1.2 2021/12/18 23:45:31 riastradh Exp $	*/
2
3/*
4 * Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 *
25 * Authors:
26 *    Eddie Dong <eddie.dong@intel.com>
27 *    Kevin Tian <kevin.tian@intel.com>
28 *
29 * Contributors:
30 *    Zhi Wang <zhi.a.wang@intel.com>
31 *    Changbin Du <changbin.du@intel.com>
32 *    Zhenyu Wang <zhenyuw@linux.intel.com>
33 *    Tina Zhang <tina.zhang@intel.com>
34 *    Bing Niu <bing.niu@intel.com>
35 *
36 */
37
38#ifndef __GVT_RENDER_H__
39#define __GVT_RENDER_H__
40
41struct engine_mmio {
42	int ring_id;
43	i915_reg_t reg;
44	u32 mask;
45	bool in_context;
46	u32 value;
47};
48
49void intel_gvt_switch_mmio(struct intel_vgpu *pre,
50			   struct intel_vgpu *next, int ring_id);
51
52void intel_gvt_init_engine_mmio_context(struct intel_gvt *gvt);
53
54bool is_inhibit_context(struct intel_context *ce);
55
56int intel_vgpu_restore_inhibit_context(struct intel_vgpu *vgpu,
57				       struct i915_request *req);
58#define IS_RESTORE_INHIBIT(a)	\
59	(_MASKED_BIT_ENABLE(CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT) == \
60	((a) & _MASKED_BIT_ENABLE(CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT)))
61
62#endif
63