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 struct engine_mmio {
40 int ring_id;
41 i915_reg_t reg;
42 u32 mask;
43 bool in_context;
44 u32 value;
45 };
46
47 void intel_gvt_switch_mmio(struct intel_vgpu *pre,
48 struct intel_vgpu *next, int ring_id);
49
50 void intel_gvt_init_engine_mmio_context(struct intel_gvt *gvt);
51
52 bool is_inhibit_context(struct intel_context *ce);
53
54 int intel_vgpu_restore_inhibit_context(struct intel_vgpu *vgpu,
55 struct i915_request *req);
56 #define IS_RESTORE_INHIBIT(a) \
57 (_MASKED_BIT_ENABLE(CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT) == \
58 ((a) & _MASKED_BIT_ENABLE(CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT)))
59
60 #endif