diff options
author | Zhi Wang <zhi.a.wang@intel.com> | 2017-09-12 22:33:12 +0800 |
---|---|---|
committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2017-11-16 11:48:14 +0800 |
commit | 6d76303553bab75ffc53993c56aad06251d8de60 (patch) | |
tree | 8479c1964c6e9894e0074672323a8b56d6dab492 /drivers/gpu/drm/i915/gvt/execlist.c | |
parent | d8235b5e55845de19983cec38af245cc200b81e2 (diff) | |
download | linux-6d76303553bab75ffc53993c56aad06251d8de60.tar.bz2 |
drm/i915/gvt: Move common vGPU workload creation into scheduler.c
Move common vGPU workload creation functions into scheduler.c since
they are not specific to execlist emulation.
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/execlist.c')
-rw-r--r-- | drivers/gpu/drm/i915/gvt/execlist.c | 156 |
1 files changed, 3 insertions, 153 deletions
diff --git a/drivers/gpu/drm/i915/gvt/execlist.c b/drivers/gpu/drm/i915/gvt/execlist.c index 45cb342500b7..c753cb5bfb58 100644 --- a/drivers/gpu/drm/i915/gvt/execlist.c +++ b/drivers/gpu/drm/i915/gvt/execlist.c @@ -438,179 +438,29 @@ out: return ret; } -#define RING_CTX_OFF(x) \ - offsetof(struct execlist_ring_context, x) - -static void read_guest_pdps(struct intel_vgpu *vgpu, - u64 ring_context_gpa, u32 pdp[8]) -{ - u64 gpa; - int i; - - gpa = ring_context_gpa + RING_CTX_OFF(pdp3_UDW.val); - - for (i = 0; i < 8; i++) - intel_gvt_hypervisor_read_gpa(vgpu, - gpa + i * 8, &pdp[7 - i], 4); -} - -static int prepare_mm(struct intel_vgpu_workload *workload) -{ - struct execlist_ctx_descriptor_format *desc = &workload->ctx_desc; - struct intel_vgpu_mm *mm; - struct intel_vgpu *vgpu = workload->vgpu; - int page_table_level; - u32 pdp[8]; - - if (desc->addressing_mode == 1) { /* legacy 32-bit */ - page_table_level = 3; - } else if (desc->addressing_mode == 3) { /* legacy 64 bit */ - page_table_level = 4; - } else { - gvt_vgpu_err("Advanced Context mode(SVM) is not supported!\n"); - return -EINVAL; - } - - read_guest_pdps(workload->vgpu, workload->ring_context_gpa, pdp); - - mm = intel_vgpu_find_ppgtt_mm(workload->vgpu, page_table_level, pdp); - if (mm) { - intel_gvt_mm_reference(mm); - } else { - - mm = intel_vgpu_create_mm(workload->vgpu, INTEL_GVT_MM_PPGTT, - pdp, page_table_level, 0); - if (IS_ERR(mm)) { - gvt_vgpu_err("fail to create mm object.\n"); - return PTR_ERR(mm); - } - } - workload->shadow_mm = mm; - return 0; -} - -#define get_last_workload(q) \ - (list_empty(q) ? NULL : container_of(q->prev, \ - struct intel_vgpu_workload, list)) - static int submit_context(struct intel_vgpu *vgpu, int ring_id, struct execlist_ctx_descriptor_format *desc, bool emulate_schedule_in) { struct intel_vgpu_submission *s = &vgpu->submission; - struct list_head *q = workload_q_head(vgpu, ring_id); - struct intel_vgpu_workload *last_workload = get_last_workload(q); struct intel_vgpu_workload *workload = NULL; - struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; - u64 ring_context_gpa; - u32 head, tail, start, ctl, ctx_ctl, per_ctx, indirect_ctx; - int ret; - - ring_context_gpa = intel_vgpu_gma_to_gpa(vgpu->gtt.ggtt_mm, - (u32)((desc->lrca + 1) << GTT_PAGE_SHIFT)); - if (ring_context_gpa == INTEL_GVT_INVALID_ADDR) { - gvt_vgpu_err("invalid guest context LRCA: %x\n", desc->lrca); - return -EINVAL; - } - - intel_gvt_hypervisor_read_gpa(vgpu, ring_context_gpa + - RING_CTX_OFF(ring_header.val), &head, 4); - - intel_gvt_hypervisor_read_gpa(vgpu, ring_context_gpa + - RING_CTX_OFF(ring_tail.val), &tail, 4); - - head &= RB_HEAD_OFF_MASK; - tail &= RB_TAIL_OFF_MASK; - if (last_workload && same_context(&last_workload->ctx_desc, desc)) { - gvt_dbg_el("ring id %d cur workload == last\n", ring_id); - gvt_dbg_el("ctx head %x real head %lx\n", head, - last_workload->rb_tail); - /* - * cannot use guest context head pointer here, - * as it might not be updated at this time - */ - head = last_workload->rb_tail; - } - - gvt_dbg_el("ring id %d begin a new workload\n", ring_id); - - /* record some ring buffer register values for scan and shadow */ - intel_gvt_hypervisor_read_gpa(vgpu, ring_context_gpa + - RING_CTX_OFF(rb_start.val), &start, 4); - intel_gvt_hypervisor_read_gpa(vgpu, ring_context_gpa + - RING_CTX_OFF(rb_ctrl.val), &ctl, 4); - intel_gvt_hypervisor_read_gpa(vgpu, ring_context_gpa + - RING_CTX_OFF(ctx_ctrl.val), &ctx_ctl, 4); - - workload = intel_vgpu_create_workload(vgpu); + workload = intel_vgpu_create_workload(vgpu, ring_id, desc); if (IS_ERR(workload)) return PTR_ERR(workload); - workload->ring_id = ring_id; - workload->ctx_desc = *desc; - workload->ring_context_gpa = ring_context_gpa; - workload->rb_head = head; - workload->rb_tail = tail; - workload->rb_start = start; - workload->rb_ctl = ctl; workload->prepare = prepare_execlist_workload; workload->complete = complete_execlist_workload; workload->emulate_schedule_in = emulate_schedule_in; - if (ring_id == RCS) { - intel_gvt_hypervisor_read_gpa(vgpu, ring_context_gpa + - RING_CTX_OFF(bb_per_ctx_ptr.val), &per_ctx, 4); - intel_gvt_hypervisor_read_gpa(vgpu, ring_context_gpa + - RING_CTX_OFF(rcs_indirect_ctx.val), &indirect_ctx, 4); - - workload->wa_ctx.indirect_ctx.guest_gma = - indirect_ctx & INDIRECT_CTX_ADDR_MASK; - workload->wa_ctx.indirect_ctx.size = - (indirect_ctx & INDIRECT_CTX_SIZE_MASK) * - CACHELINE_BYTES; - workload->wa_ctx.per_ctx.guest_gma = - per_ctx & PER_CTX_ADDR_MASK; - workload->wa_ctx.per_ctx.valid = per_ctx & 1; - } - if (emulate_schedule_in) workload->elsp_dwords = s->execlist[ring_id].elsp_dwords; - gvt_dbg_el("workload %p ring id %d head %x tail %x start %x ctl %x\n", - workload, ring_id, head, tail, start, ctl); - gvt_dbg_el("workload %p emulate schedule_in %d\n", workload, emulate_schedule_in); - ret = prepare_mm(workload); - if (ret) { - kmem_cache_free(s->workloads, workload); - return ret; - } - - /* Only scan and shadow the first workload in the queue - * as there is only one pre-allocated buf-obj for shadow. - */ - if (list_empty(workload_q_head(vgpu, ring_id))) { - intel_runtime_pm_get(dev_priv); - mutex_lock(&dev_priv->drm.struct_mutex); - ret = intel_gvt_scan_and_shadow_workload(workload); - mutex_unlock(&dev_priv->drm.struct_mutex); - intel_runtime_pm_put(dev_priv); - } - - if (ret == 0) - queue_workload(workload); - else { - intel_vgpu_destroy_workload(workload); - if (vgpu_is_vm_unhealthy(ret)) { - intel_vgpu_clean_execlist(vgpu); - enter_failsafe_mode(vgpu, GVT_FAILSAFE_GUEST_ERR); - } - } - return ret; - + queue_workload(workload); + return 0; } int intel_vgpu_submit_execlist(struct intel_vgpu *vgpu, int ring_id) |