From 54cff6479fd87e4a941e3686d93faa734586922b Mon Sep 17 00:00:00 2001 From: Zhi Wang Date: Sun, 10 Sep 2017 16:40:04 +0800 Subject: [PATCH] drm/i915/gvt: Make elsp_dwords in the right order The context descriptors in elsp_dwords are stored in a reversed order and the definition of context descriptor is also reversed. The revesred stuff is hard to be used and might cause misunderstanding. Make them in the right oder for following code re-factoring. Tested on my SKL NUC. Signed-off-by: Zhi Wang --- drivers/gpu/drm/i915/gvt/execlist.c | 22 +++++++++++----------- drivers/gpu/drm/i915/gvt/execlist.h | 8 ++++---- drivers/gpu/drm/i915/gvt/handlers.c | 2 +- 3 files changed, 16 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/execlist.c b/drivers/gpu/drm/i915/gvt/execlist.c index 4427be18e4a9..9f0207205117 100644 --- a/drivers/gpu/drm/i915/gvt/execlist.c +++ b/drivers/gpu/drm/i915/gvt/execlist.c @@ -511,8 +511,8 @@ static int prepare_execlist_workload(struct intel_vgpu_workload *workload) if (!workload->emulate_schedule_in) return 0; - ctx[0] = *get_desc_from_elsp_dwords(&workload->elsp_dwords, 1); - ctx[1] = *get_desc_from_elsp_dwords(&workload->elsp_dwords, 0); + ctx[0] = *get_desc_from_elsp_dwords(&workload->elsp_dwords, 0); + ctx[1] = *get_desc_from_elsp_dwords(&workload->elsp_dwords, 1); ret = emulate_execlist_schedule_in(&vgpu->execlist[ring_id], ctx); if (!ret) @@ -770,21 +770,21 @@ static int submit_context(struct intel_vgpu *vgpu, int ring_id, int intel_vgpu_submit_execlist(struct intel_vgpu *vgpu, int ring_id) { struct intel_vgpu_execlist *execlist = &vgpu->execlist[ring_id]; - struct execlist_ctx_descriptor_format desc[2]; + struct execlist_ctx_descriptor_format *desc[2]; int i, ret; - desc[0] = *get_desc_from_elsp_dwords(&execlist->elsp_dwords, 1); - desc[1] = *get_desc_from_elsp_dwords(&execlist->elsp_dwords, 0); + desc[0] = get_desc_from_elsp_dwords(&execlist->elsp_dwords, 0); + desc[1] = get_desc_from_elsp_dwords(&execlist->elsp_dwords, 1); - if (!desc[0].valid) { + if (!desc[0]->valid) { gvt_vgpu_err("invalid elsp submission, desc0 is invalid\n"); goto inv_desc; } for (i = 0; i < ARRAY_SIZE(desc); i++) { - if (!desc[i].valid) + if (!desc[i]->valid) continue; - if (!desc[i].privilege_access) { + if (!desc[i]->privilege_access) { gvt_vgpu_err("unexpected GGTT elsp submission\n"); goto inv_desc; } @@ -792,9 +792,9 @@ int intel_vgpu_submit_execlist(struct intel_vgpu *vgpu, int ring_id) /* submit workload */ for (i = 0; i < ARRAY_SIZE(desc); i++) { - if (!desc[i].valid) + if (!desc[i]->valid) continue; - ret = submit_context(vgpu, ring_id, &desc[i], i == 0); + ret = submit_context(vgpu, ring_id, desc[i], i == 0); if (ret) { gvt_vgpu_err("failed to submit desc %d\n", i); return ret; @@ -805,7 +805,7 @@ int intel_vgpu_submit_execlist(struct intel_vgpu *vgpu, int ring_id) inv_desc: gvt_vgpu_err("descriptors content: desc0 %08x %08x desc1 %08x %08x\n", - desc[0].udw, desc[0].ldw, desc[1].udw, desc[1].ldw); + desc[0]->udw, desc[0]->ldw, desc[1]->udw, desc[1]->ldw); return -EINVAL; } diff --git a/drivers/gpu/drm/i915/gvt/execlist.h b/drivers/gpu/drm/i915/gvt/execlist.h index 7eced40a1e30..427e40e64d41 100644 --- a/drivers/gpu/drm/i915/gvt/execlist.h +++ b/drivers/gpu/drm/i915/gvt/execlist.h @@ -36,10 +36,6 @@ #define _GVT_EXECLIST_H_ struct execlist_ctx_descriptor_format { - union { - u32 udw; - u32 context_id; - }; union { u32 ldw; struct { @@ -54,6 +50,10 @@ struct execlist_ctx_descriptor_format { u32 lrca : 20; }; }; + union { + u32 udw; + u32 context_id; + }; }; struct execlist_status_format { diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index a5bed2e71b92..820d26670541 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -1453,7 +1453,7 @@ static int elsp_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, execlist = &vgpu->execlist[ring_id]; - execlist->elsp_dwords.data[execlist->elsp_dwords.index] = data; + execlist->elsp_dwords.data[3 - execlist->elsp_dwords.index] = data; if (execlist->elsp_dwords.index == 3) { ret = intel_vgpu_submit_execlist(vgpu, ring_id); if(ret) -- 2.39.5