From patchwork Mon Oct 6 14:15:25 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Harrison X-Patchwork-Id: 5037511 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 2C5F2C11AE for ; Mon, 6 Oct 2014 14:15:54 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 00146201F7 for ; Mon, 6 Oct 2014 14:15:52 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 788DE201EC for ; Mon, 6 Oct 2014 14:15:50 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0516F89C94; Mon, 6 Oct 2014 07:15:50 -0700 (PDT) X-Original-To: Intel-GFX@lists.freedesktop.org Delivered-To: Intel-GFX@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id 4914B6E3C2 for ; Mon, 6 Oct 2014 07:15:49 -0700 (PDT) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 06 Oct 2014 07:15:49 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,664,1406617200"; d="scan'208";a="610270206" Received: from johnharr-linux.isw.intel.com ([10.102.226.51]) by fmsmga002.fm.intel.com with ESMTP; 06 Oct 2014 07:15:47 -0700 From: John.C.Harrison@Intel.com To: Intel-GFX@Lists.FreeDesktop.Org Date: Mon, 6 Oct 2014 15:15:25 +0100 Message-Id: <1412604925-11290-22-git-send-email-John.C.Harrison@Intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1412604925-11290-21-git-send-email-John.C.Harrison@Intel.com> References: <1412604925-11290-1-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-2-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-3-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-4-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-5-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-6-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-7-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-8-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-9-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-10-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-11-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-12-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-13-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-14-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-15-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-16-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-17-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-18-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-19-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-20-git-send-email-John.C.Harrison@Intel.com> <1412604925-11290-21-git-send-email-John.C.Harrison@Intel.com> Organization: Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ Subject: [Intel-gfx] [RFC 21/21] drm/i915: Remove 'obj->ring' X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-2.7 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY, URIBL_RHS_DOB autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: John Harrison For: VIZ-4377 Signed-off-by: John.C.Harrison@Intel.com --- drivers/gpu/drm/i915/i915_debugfs.c | 9 +++++---- drivers/gpu/drm/i915/i915_drv.h | 2 -- drivers/gpu/drm/i915/i915_gem.c | 32 +++++++++++++++++++------------ drivers/gpu/drm/i915/i915_gem_context.c | 12 +++++++++++- drivers/gpu/drm/i915/i915_gpu_error.c | 3 ++- drivers/gpu/drm/i915/intel_display.c | 15 ++++++++------- 6 files changed, 46 insertions(+), 27 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index df53515..b1d989f 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -168,8 +168,9 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj) *t = '\0'; seq_printf(m, " (%s mappable)", s); } - if (obj->ring != NULL) - seq_printf(m, " (%s)", obj->ring->name); + if (obj->last_read_req != NULL) + seq_printf(m, " (%s)", + i915_gem_request_get_ring(obj->last_read_req)->name); if (obj->frontbuffer_bits) seq_printf(m, " (frontbuffer: 0x%03x)", obj->frontbuffer_bits); } @@ -336,7 +337,7 @@ static int per_file_stats(int id, void *ptr, void *data) if (ppgtt->file_priv != stats->file_priv) continue; - if (obj->ring) /* XXX per-vma statistic */ + if (obj->last_read_req) /* XXX per-vma statistic */ stats->active += obj->base.size; else stats->inactive += obj->base.size; @@ -346,7 +347,7 @@ static int per_file_stats(int id, void *ptr, void *data) } else { if (i915_gem_obj_ggtt_bound(obj)) { stats->global += obj->base.size; - if (obj->ring) + if (obj->last_read_req) stats->active += obj->base.size; else stats->inactive += obj->base.size; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 0790593..cdbbdeb 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1859,8 +1859,6 @@ struct drm_i915_gem_object { void *dma_buf_vmapping; int vmapping_count; - struct intel_engine_cs *ring; - /** Breadcrumb of last rendering to the buffer. */ struct drm_i915_gem_request *last_read_req; struct drm_i915_gem_request *last_write_req; diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index d40dad7..561fb81 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2184,14 +2184,18 @@ static void i915_gem_object_move_to_active(struct drm_i915_gem_object *obj, struct intel_engine_cs *ring) { - struct drm_i915_gem_request *req = intel_ring_get_request(ring); + struct drm_i915_gem_request *req; + struct intel_engine_cs *old_ring; BUG_ON(ring == NULL); - if (obj->ring != ring && obj->last_write_req) { + + req = intel_ring_get_request(ring); + old_ring = i915_gem_request_get_ring(obj->last_read_req); + + if (old_ring != ring && obj->last_write_req) { /* Keep the request relative to the current ring */ obj->last_write_req = req; } - obj->ring = ring; /* Add a reference if we're newly entering the active list. */ if (!obj->active) { @@ -2230,7 +2234,6 @@ i915_gem_object_move_to_inactive(struct drm_i915_gem_object *obj) intel_fb_obj_flush(obj, true); list_del_init(&obj->ring_list); - obj->ring = NULL; obj->last_read_req = NULL; obj->last_write_req = NULL; @@ -2247,9 +2250,7 @@ i915_gem_object_move_to_inactive(struct drm_i915_gem_object *obj) static void i915_gem_object_retire(struct drm_i915_gem_object *obj) { - struct intel_engine_cs *ring = obj->ring; - - if (ring == NULL) + if (obj->last_read_req == NULL) return; if (i915_gem_request_completed(obj->last_read_req, true)) @@ -2769,14 +2770,17 @@ i915_gem_idle_work_handler(struct work_struct *work) static int i915_gem_object_flush_active(struct drm_i915_gem_object *obj) { + struct intel_engine_cs *ring; int ret; if (obj->active) { + ring = i915_gem_request_get_ring(obj->last_read_req); + ret = i915_gem_check_olr(obj->last_read_req); if (ret) return ret; - i915_gem_retire_requests_ring(obj->ring); + i915_gem_retire_requests_ring(ring); } return 0; @@ -2876,9 +2880,11 @@ int i915_gem_object_sync(struct drm_i915_gem_object *obj, struct intel_engine_cs *to) { - struct intel_engine_cs *from = obj->ring; + struct intel_engine_cs *from; int ret, idx; + from = i915_gem_request_get_ring(obj->last_read_req); + if (from == NULL || to == from) return 0; @@ -3889,7 +3895,7 @@ i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj, bool was_pin_display; int ret; - if (pipelined != obj->ring) { + if (pipelined != i915_gem_request_get_ring(obj->last_read_req)) { ret = i915_gem_object_sync(obj, pipelined); if (ret) return ret; @@ -4303,9 +4309,11 @@ i915_gem_busy_ioctl(struct drm_device *dev, void *data, ret = i915_gem_object_flush_active(obj); args->busy = obj->active; - if (obj->ring) { + if (obj->last_read_req) { + struct intel_engine_cs *ring; BUILD_BUG_ON(I915_NUM_RINGS > 16); - args->busy |= intel_ring_flag(obj->ring) << 16; + ring = i915_gem_request_get_ring(obj->last_read_req); + args->busy |= intel_ring_flag(ring) << 16; } drm_gem_object_unreference(&obj->base); diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index a5221d8..8f24831 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -613,7 +613,17 @@ static int do_switch(struct intel_engine_cs *ring, * swapped, but there is no way to do that yet. */ from->legacy_hw_ctx.rcs_state->dirty = 1; - BUG_ON(from->legacy_hw_ctx.rcs_state->ring != ring); + + /* BUG_ON(i915_gem_request_get_ring( + from->legacy_hw_ctx.rcs_state->last_read_req) != ring); */ + /* NB: last_read_req has already been updated to the current + * request however, that request has not yet been submitted. + * Thus last_read_req->ring is guaranteed to be null! + * NB2: Doing the check before the update of last_read_req + * (which happens in i915_vma_move_to_active() just above), + * also fails because last_read_req is almost always null on + * entry! + */ /* obj is kept alive until the next request by its active ref */ i915_gem_object_ggtt_unpin(from->legacy_hw_ctx.rcs_state); diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index 9545d96..b9ecbd9 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -681,7 +681,8 @@ static void capture_bo(struct drm_i915_error_buffer *err, err->dirty = obj->dirty; err->purgeable = obj->madv != I915_MADV_WILLNEED; err->userptr = obj->userptr.mm != NULL; - err->ring = obj->ring ? obj->ring->id : -1; + err->ring = obj->last_read_req ? + i915_gem_request_get_ring(obj->last_read_req)->id : -1; err->cache_level = obj->cache_level; } diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 9ca8f94..8238aac 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -9728,7 +9728,7 @@ static bool use_mmio_flip(struct intel_engine_cs *ring, else if (i915.enable_execlists) return true; else - return ring != obj->ring; + return ring != i915_gem_request_get_ring(obj->last_read_req); } static void intel_do_mmio_flip(struct intel_crtc *intel_crtc) @@ -9769,8 +9769,6 @@ static int intel_postpone_flip(struct drm_i915_gem_object *obj) if (!obj->last_write_req) return 0; - ring = obj->ring; - if (i915_gem_request_completed(obj->last_write_req, true)) return 0; @@ -9778,6 +9776,7 @@ static int intel_postpone_flip(struct drm_i915_gem_object *obj) if (ret) return ret; + ring = i915_gem_request_get_ring(obj->last_write_req); if (WARN_ON(!ring->irq_get(ring))) return 0; @@ -9837,14 +9836,15 @@ static int intel_queue_mmio_flip(struct drm_device *dev, spin_lock_irqsave(&dev_priv->mmio_flip_lock, irq_flags); intel_crtc->mmio_flip.req = obj->last_write_req; i915_gem_request_reference(intel_crtc->mmio_flip.req); - intel_crtc->mmio_flip.ring_id = obj->ring->id; + BUG_ON(ring != i915_gem_request_get_ring(intel_crtc->mmio_flip.req)); + intel_crtc->mmio_flip.ring_id = ring->id; spin_unlock_irqrestore(&dev_priv->mmio_flip_lock, irq_flags); /* * Double check to catch cases where irq fired before * mmio flip data was ready */ - intel_notify_mmio_flip(obj->ring); + intel_notify_mmio_flip(ring); return 0; } @@ -10022,7 +10022,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, } else if (IS_IVYBRIDGE(dev)) { ring = &dev_priv->ring[BCS]; } else if (INTEL_INFO(dev)->gen >= 7) { - ring = obj->ring; + ring = i915_gem_request_get_ring(obj->last_read_req); if (ring == NULL || ring->id != RCS) ring = &dev_priv->ring[BCS]; } else { @@ -10043,7 +10043,8 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, goto cleanup_unpin; work->flip_queued_req = obj->last_write_req; - work->flip_queued_ring = obj->ring; + work->flip_queued_ring = + i915_gem_request_get_ring(obj->last_write_req); } else { ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, ring, page_flip_flags);