diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/scheduler.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/scheduler.c | 108 |
1 files changed, 81 insertions, 27 deletions
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c index b8fbe3fabea3..55bb7885e228 100644 --- a/drivers/gpu/drm/i915/gvt/scheduler.c +++ b/drivers/gpu/drm/i915/gvt/scheduler.c @@ -332,6 +332,9 @@ static void release_shadow_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx) i915_gem_object_unpin_map(wa_ctx->indirect_ctx.obj); i915_gem_object_put(wa_ctx->indirect_ctx.obj); + + wa_ctx->indirect_ctx.obj = NULL; + wa_ctx->indirect_ctx.shadow_va = NULL; } static int set_context_ppgtt_from_shadow(struct intel_vgpu_workload *workload, @@ -356,6 +359,33 @@ static int set_context_ppgtt_from_shadow(struct intel_vgpu_workload *workload, return 0; } +static int +intel_gvt_workload_req_alloc(struct intel_vgpu_workload *workload) +{ + struct intel_vgpu *vgpu = workload->vgpu; + struct intel_vgpu_submission *s = &vgpu->submission; + struct i915_gem_context *shadow_ctx = s->shadow_ctx; + struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; + struct intel_engine_cs *engine = dev_priv->engine[workload->ring_id]; + struct i915_request *rq; + int ret = 0; + + lockdep_assert_held(&dev_priv->drm.struct_mutex); + + if (workload->req) + goto out; + + rq = i915_request_alloc(engine, shadow_ctx); + if (IS_ERR(rq)) { + gvt_vgpu_err("fail to allocate gem request\n"); + ret = PTR_ERR(rq); + goto out; + } + workload->req = i915_request_get(rq); +out: + return ret; +} + /** * intel_gvt_scan_and_shadow_workload - audit the workload by scanning and * shadow it as well, include ringbuffer,wa_ctx and ctx. @@ -372,12 +402,11 @@ int intel_gvt_scan_and_shadow_workload(struct intel_vgpu_workload *workload) struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; struct intel_engine_cs *engine = dev_priv->engine[workload->ring_id]; struct intel_context *ce; - struct i915_request *rq; int ret; lockdep_assert_held(&dev_priv->drm.struct_mutex); - if (workload->req) + if (workload->shadow) return 0; ret = set_context_ppgtt_from_shadow(workload, shadow_ctx); @@ -417,22 +446,8 @@ int intel_gvt_scan_and_shadow_workload(struct intel_vgpu_workload *workload) goto err_shadow; } - rq = i915_request_alloc(engine, shadow_ctx); - if (IS_ERR(rq)) { - gvt_vgpu_err("fail to allocate gem request\n"); - ret = PTR_ERR(rq); - goto err_shadow; - } - workload->req = i915_request_get(rq); - - ret = populate_shadow_context(workload); - if (ret) - goto err_req; - + workload->shadow = true; return 0; -err_req: - rq = fetch_and_zero(&workload->req); - i915_request_put(rq); err_shadow: release_shadow_wa_ctx(&workload->wa_ctx); err_unpin: @@ -671,23 +686,31 @@ static int dispatch_workload(struct intel_vgpu_workload *workload) mutex_lock(&vgpu->vgpu_lock); mutex_lock(&dev_priv->drm.struct_mutex); + ret = intel_gvt_workload_req_alloc(workload); + if (ret) + goto err_req; + ret = intel_gvt_scan_and_shadow_workload(workload); if (ret) goto out; - ret = prepare_workload(workload); + ret = populate_shadow_context(workload); + if (ret) { + release_shadow_wa_ctx(&workload->wa_ctx); + goto out; + } + ret = prepare_workload(workload); out: - if (ret) - workload->status = ret; - if (!IS_ERR_OR_NULL(workload->req)) { gvt_dbg_sched("ring id %d submit workload to i915 %p\n", ring_id, workload->req); i915_request_add(workload->req); workload->dispatched = true; } - +err_req: + if (ret) + workload->status = ret; mutex_unlock(&dev_priv->drm.struct_mutex); mutex_unlock(&vgpu->vgpu_lock); return ret; @@ -891,11 +914,6 @@ static void complete_current_workload(struct intel_gvt *gvt, int ring_id) list_del_init(&workload->list); - if (!workload->status) { - release_shadow_batch_buffer(workload); - release_shadow_wa_ctx(&workload->wa_ctx); - } - if (workload->status || (vgpu->resetting_eng & ENGINE_MASK(ring_id))) { /* if workload->status is not successful means HW GPU * has occurred GPU hang or something wrong with i915/GVT, @@ -1079,6 +1097,21 @@ err: return ret; } +static void +i915_context_ppgtt_root_restore(struct intel_vgpu_submission *s) +{ + struct i915_hw_ppgtt *i915_ppgtt = s->shadow_ctx->ppgtt; + int i; + + if (i915_vm_is_48bit(&i915_ppgtt->vm)) + px_dma(&i915_ppgtt->pml4) = s->i915_context_pml4; + else { + for (i = 0; i < GEN8_3LVL_PDPES; i++) + px_dma(i915_ppgtt->pdp.page_directory[i]) = + s->i915_context_pdps[i]; + } +} + /** * intel_vgpu_clean_submission - free submission-related resource for vGPU * @vgpu: a vGPU @@ -1091,6 +1124,7 @@ void intel_vgpu_clean_submission(struct intel_vgpu *vgpu) struct intel_vgpu_submission *s = &vgpu->submission; intel_vgpu_select_submission_ops(vgpu, ALL_ENGINES, 0); + i915_context_ppgtt_root_restore(s); i915_gem_context_put(s->shadow_ctx); kmem_cache_destroy(s->workloads); } @@ -1116,6 +1150,21 @@ void intel_vgpu_reset_submission(struct intel_vgpu *vgpu, s->ops->reset(vgpu, engine_mask); } +static void +i915_context_ppgtt_root_save(struct intel_vgpu_submission *s) +{ + struct i915_hw_ppgtt *i915_ppgtt = s->shadow_ctx->ppgtt; + int i; + + if (i915_vm_is_48bit(&i915_ppgtt->vm)) + s->i915_context_pml4 = px_dma(&i915_ppgtt->pml4); + else { + for (i = 0; i < GEN8_3LVL_PDPES; i++) + s->i915_context_pdps[i] = + px_dma(i915_ppgtt->pdp.page_directory[i]); + } +} + /** * intel_vgpu_setup_submission - setup submission-related resource for vGPU * @vgpu: a vGPU @@ -1138,6 +1187,8 @@ int intel_vgpu_setup_submission(struct intel_vgpu *vgpu) if (IS_ERR(s->shadow_ctx)) return PTR_ERR(s->shadow_ctx); + i915_context_ppgtt_root_save(s); + bitmap_zero(s->shadow_ctx_desc_updated, I915_NUM_ENGINES); s->workloads = kmem_cache_create_usercopy("gvt-g_vgpu_workload", @@ -1230,6 +1281,9 @@ void intel_vgpu_destroy_workload(struct intel_vgpu_workload *workload) { struct intel_vgpu_submission *s = &workload->vgpu->submission; + release_shadow_batch_buffer(workload); + release_shadow_wa_ctx(&workload->wa_ctx); + if (workload->shadow_mm) intel_vgpu_mm_put(workload->shadow_mm); |