diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/scheduler.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/scheduler.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.h b/drivers/gpu/drm/i915/gvt/scheduler.h new file mode 100644 index 000000000000..2833dfa8c9ae --- /dev/null +++ b/drivers/gpu/drm/i915/gvt/scheduler.h @@ -0,0 +1,139 @@ +/* + * Copyright(c) 2011-2016 Intel Corporation. All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Authors: + * Zhi Wang <[email protected]> + * + * Contributors: + * Ping Gao <[email protected]> + * Tina Zhang <[email protected]> + * Chanbin Du <[email protected]> + * Min He <[email protected]> + * Bing Niu <[email protected]> + * Zhenyu Wang <[email protected]> + * + */ + +#ifndef _GVT_SCHEDULER_H_ +#define _GVT_SCHEDULER_H_ + +struct intel_gvt_workload_scheduler { + struct intel_vgpu *current_vgpu; + struct intel_vgpu *next_vgpu; + struct intel_vgpu_workload *current_workload[I915_NUM_ENGINES]; + bool need_reschedule; + + wait_queue_head_t workload_complete_wq; + struct task_struct *thread[I915_NUM_ENGINES]; + wait_queue_head_t waitq[I915_NUM_ENGINES]; + + void *sched_data; + struct intel_gvt_sched_policy_ops *sched_ops; +}; + +#define INDIRECT_CTX_ADDR_MASK 0xffffffc0 +#define INDIRECT_CTX_SIZE_MASK 0x3f +struct shadow_indirect_ctx { + struct drm_i915_gem_object *obj; + unsigned long guest_gma; + unsigned long shadow_gma; + void *shadow_va; + uint32_t size; +}; + +#define PER_CTX_ADDR_MASK 0xfffff000 +struct shadow_per_ctx { + unsigned long guest_gma; + unsigned long shadow_gma; +}; + +struct intel_shadow_wa_ctx { + struct intel_vgpu_workload *workload; + struct shadow_indirect_ctx indirect_ctx; + struct shadow_per_ctx per_ctx; + +}; + +struct intel_vgpu_workload { + struct intel_vgpu *vgpu; + int ring_id; + struct drm_i915_gem_request *req; + /* if this workload has been dispatched to i915? */ + bool dispatched; + int status; + + struct intel_vgpu_mm *shadow_mm; + + /* different submission model may need different handler */ + int (*prepare)(struct intel_vgpu_workload *); + int (*complete)(struct intel_vgpu_workload *); + struct list_head list; + + DECLARE_BITMAP(pending_events, INTEL_GVT_EVENT_MAX); + void *shadow_ring_buffer_va; + + /* execlist context information */ + struct execlist_ctx_descriptor_format ctx_desc; + struct execlist_ring_context *ring_context; + unsigned long rb_head, rb_tail, rb_ctl, rb_start, rb_len; + bool restore_inhibit; + struct intel_vgpu_elsp_dwords elsp_dwords; + bool emulate_schedule_in; + atomic_t shadow_ctx_active; + wait_queue_head_t shadow_ctx_status_wq; + u64 ring_context_gpa; + + /* shadow batch buffer */ + struct list_head shadow_bb; + struct intel_shadow_wa_ctx wa_ctx; +}; + +/* Intel shadow batch buffer is a i915 gem object */ +struct intel_shadow_bb_entry { + struct list_head list; + struct drm_i915_gem_object *obj; + void *va; + unsigned long len; + u32 *bb_start_cmd_va; +}; + +#define workload_q_head(vgpu, ring_id) \ + (&(vgpu->workload_q_head[ring_id])) + +#define queue_workload(workload) do { \ + list_add_tail(&workload->list, \ + workload_q_head(workload->vgpu, workload->ring_id)); \ + wake_up(&workload->vgpu->gvt-> \ + scheduler.waitq[workload->ring_id]); \ +} while (0) + +int intel_gvt_init_workload_scheduler(struct intel_gvt *gvt); + +void intel_gvt_clean_workload_scheduler(struct intel_gvt *gvt); + +void intel_gvt_wait_vgpu_idle(struct intel_vgpu *vgpu); + +int intel_vgpu_init_gvt_context(struct intel_vgpu *vgpu); + +void intel_vgpu_clean_gvt_context(struct intel_vgpu *vgpu); + +#endif |