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 enum intel_engine_id 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, 49 const struct intel_engine_cs *engine); 50 51 void intel_gvt_init_engine_mmio_context(struct intel_gvt *gvt); 52 53 bool is_inhibit_context(struct intel_context *ce); 54 55 int intel_vgpu_restore_inhibit_context(struct intel_vgpu *vgpu, 56 struct i915_request *req); 57 #define IS_RESTORE_INHIBIT(a) \ 58 (_MASKED_BIT_ENABLE(CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT) == \ 59 ((a) & _MASKED_BIT_ENABLE(CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT))) 60 61 #endif 62