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 * Zhi Wang <zhi.a.wang@intel.com> 25 * 26 * Contributors: 27 * Ping Gao <ping.a.gao@intel.com> 28 * Tina Zhang <tina.zhang@intel.com> 29 * Chanbin Du <changbin.du@intel.com> 30 * Min He <min.he@intel.com> 31 * Bing Niu <bing.niu@intel.com> 32 * Zhenyu Wang <zhenyuw@linux.intel.com> 33 * 34 */ 35 36 #ifndef _GVT_SCHEDULER_H_ 37 #define _GVT_SCHEDULER_H_ 38 39 struct intel_gvt_workload_scheduler { 40 struct intel_vgpu *current_vgpu; 41 struct intel_vgpu *next_vgpu; 42 struct intel_vgpu_workload *current_workload[I915_NUM_ENGINES]; 43 bool need_reschedule; 44 45 spinlock_t mmio_context_lock; 46 /* can be null when owner is host */ 47 struct intel_vgpu *engine_owner[I915_NUM_ENGINES]; 48 49 wait_queue_head_t workload_complete_wq; 50 struct task_struct *thread[I915_NUM_ENGINES]; 51 wait_queue_head_t waitq[I915_NUM_ENGINES]; 52 53 void *sched_data; 54 struct intel_gvt_sched_policy_ops *sched_ops; 55 }; 56 57 #define INDIRECT_CTX_ADDR_MASK 0xffffffc0 58 #define INDIRECT_CTX_SIZE_MASK 0x3f 59 struct shadow_indirect_ctx { 60 struct drm_i915_gem_object *obj; 61 unsigned long guest_gma; 62 unsigned long shadow_gma; 63 void *shadow_va; 64 uint32_t size; 65 }; 66 67 #define PER_CTX_ADDR_MASK 0xfffff000 68 struct shadow_per_ctx { 69 unsigned long guest_gma; 70 unsigned long shadow_gma; 71 unsigned valid; 72 }; 73 74 struct intel_shadow_wa_ctx { 75 struct shadow_indirect_ctx indirect_ctx; 76 struct shadow_per_ctx per_ctx; 77 78 }; 79 80 struct intel_vgpu_workload { 81 struct intel_vgpu *vgpu; 82 int ring_id; 83 struct i915_request *req; 84 /* if this workload has been dispatched to i915? */ 85 bool dispatched; 86 bool shadow; /* if workload has done shadow of guest request */ 87 int status; 88 89 struct intel_vgpu_mm *shadow_mm; 90 91 /* different submission model may need different handler */ 92 int (*prepare)(struct intel_vgpu_workload *); 93 int (*complete)(struct intel_vgpu_workload *); 94 struct list_head list; 95 96 DECLARE_BITMAP(pending_events, INTEL_GVT_EVENT_MAX); 97 void *shadow_ring_buffer_va; 98 99 /* execlist context information */ 100 struct execlist_ctx_descriptor_format ctx_desc; 101 struct execlist_ring_context *ring_context; 102 unsigned long rb_head, rb_tail, rb_ctl, rb_start, rb_len; 103 bool restore_inhibit; 104 struct intel_vgpu_elsp_dwords elsp_dwords; 105 bool emulate_schedule_in; 106 atomic_t shadow_ctx_active; 107 wait_queue_head_t shadow_ctx_status_wq; 108 u64 ring_context_gpa; 109 110 /* shadow batch buffer */ 111 struct list_head shadow_bb; 112 struct intel_shadow_wa_ctx wa_ctx; 113 114 /* oa registers */ 115 u32 oactxctrl; 116 u32 flex_mmio[7]; 117 }; 118 119 struct intel_vgpu_shadow_bb { 120 struct list_head list; 121 struct drm_i915_gem_object *obj; 122 struct i915_vma *vma; 123 void *va; 124 u32 *bb_start_cmd_va; 125 unsigned int clflush; 126 bool accessing; 127 unsigned long bb_offset; 128 bool ppgtt; 129 }; 130 131 #define workload_q_head(vgpu, ring_id) \ 132 (&(vgpu->submission.workload_q_head[ring_id])) 133 134 void intel_vgpu_queue_workload(struct intel_vgpu_workload *workload); 135 136 int intel_gvt_init_workload_scheduler(struct intel_gvt *gvt); 137 138 void intel_gvt_clean_workload_scheduler(struct intel_gvt *gvt); 139 140 void intel_gvt_wait_vgpu_idle(struct intel_vgpu *vgpu); 141 142 int intel_vgpu_setup_submission(struct intel_vgpu *vgpu); 143 144 void intel_vgpu_reset_submission(struct intel_vgpu *vgpu, 145 unsigned long engine_mask); 146 147 void intel_vgpu_clean_submission(struct intel_vgpu *vgpu); 148 149 int intel_vgpu_select_submission_ops(struct intel_vgpu *vgpu, 150 unsigned long engine_mask, 151 unsigned int interface); 152 153 extern const struct intel_vgpu_submission_ops 154 intel_vgpu_execlist_submission_ops; 155 156 struct intel_vgpu_workload * 157 intel_vgpu_create_workload(struct intel_vgpu *vgpu, int ring_id, 158 struct execlist_ctx_descriptor_format *desc); 159 160 void intel_vgpu_destroy_workload(struct intel_vgpu_workload *workload); 161 162 void intel_vgpu_clean_workloads(struct intel_vgpu *vgpu, 163 unsigned long engine_mask); 164 165 #endif 166