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 41 struct engine_mmio { 42 int ring_id; 43 i915_reg_t reg; 44 u32 mask; 45 bool in_context; 46 u32 value; 47 }; 48 49 void intel_gvt_switch_mmio(struct intel_vgpu *pre, 50 struct intel_vgpu *next, int ring_id); 51 52 void intel_gvt_init_engine_mmio_context(struct intel_gvt *gvt); 53 54 bool is_inhibit_context(struct intel_context *ce); 55 56 int 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