From patchwork Mon Apr 8 09:17:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 10889085 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id AEC5818FD for ; Mon, 8 Apr 2019 09:19:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9823228399 for ; Mon, 8 Apr 2019 09:19:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8C41D283A2; Mon, 8 Apr 2019 09:19:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 214D3283C5 for ; Mon, 8 Apr 2019 09:19:53 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 72B9289208; Mon, 8 Apr 2019 09:19:50 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192]) by gabe.freedesktop.org (Postfix) with ESMTPS id AF939891D5 for ; Mon, 8 Apr 2019 09:19:35 +0000 (UTC) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Received: from haswell.alporthouse.com (unverified [78.156.65.138]) by fireflyinternet.com (Firefly Internet (M1)) with ESMTP id 16169474-1500050 for multiple; Mon, 08 Apr 2019 10:17:41 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Mon, 8 Apr 2019 10:17:03 +0100 Message-Id: <20190408091728.20207-4-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190408091728.20207-1-chris@chris-wilson.co.uk> References: <20190408091728.20207-1-chris@chris-wilson.co.uk> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 04/29] drm/i915: Consolidate the timeline->barrier X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP The timeline is strictly ordered, so by inserting the timeline->barrier request into the timeline->last_request it naturally provides the same barrier. Consolidate the pair of barriers into one as they serve the same purpose. Signed-off-by: Chris Wilson Reviewed-by: Tvrtko Ursulin --- drivers/gpu/drm/i915/i915_gem_context.c | 13 ++----------- drivers/gpu/drm/i915/i915_request.c | 9 --------- drivers/gpu/drm/i915/i915_timeline.c | 2 -- drivers/gpu/drm/i915/i915_timeline.h | 15 --------------- drivers/gpu/drm/i915/i915_timeline_types.h | 10 ---------- drivers/gpu/drm/i915/selftests/mock_timeline.c | 1 - 6 files changed, 2 insertions(+), 48 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index 66b6852cb4d2..7fc34ab6df87 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -1167,7 +1167,7 @@ static int gen8_modify_rpcs(struct intel_context *ce, struct intel_sseu sseu) { struct drm_i915_private *i915 = ce->engine->i915; - struct i915_request *rq, *prev; + struct i915_request *rq; intel_wakeref_t wakeref; int ret; @@ -1192,16 +1192,7 @@ gen8_modify_rpcs(struct intel_context *ce, struct intel_sseu sseu) } /* Queue this switch after all other activity by this context. */ - prev = i915_active_request_raw(&ce->ring->timeline->last_request, - &i915->drm.struct_mutex); - if (prev && !i915_request_completed(prev)) { - ret = i915_request_await_dma_fence(rq, &prev->fence); - if (ret < 0) - goto out_add; - } - - /* Order all following requests to be after. */ - ret = i915_timeline_set_barrier(ce->ring->timeline, rq); + ret = i915_active_request_set(&ce->ring->timeline->last_request, rq); if (ret) goto out_add; diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c index 2da0d6436a1a..96a9e8bcd805 100644 --- a/drivers/gpu/drm/i915/i915_request.c +++ b/drivers/gpu/drm/i915/i915_request.c @@ -584,11 +584,6 @@ i915_request_alloc_slow(struct intel_context *ce) return kmem_cache_alloc(global.slab_requests, GFP_KERNEL); } -static int add_timeline_barrier(struct i915_request *rq) -{ - return i915_request_await_active_request(rq, &rq->timeline->barrier); -} - /** * i915_request_alloc - allocate a request structure * @@ -738,10 +733,6 @@ i915_request_alloc(struct intel_engine_cs *engine, struct i915_gem_context *ctx) */ rq->head = rq->ring->emit; - ret = add_timeline_barrier(rq); - if (ret) - goto err_unwind; - ret = engine->request_alloc(rq); if (ret) goto err_unwind; diff --git a/drivers/gpu/drm/i915/i915_timeline.c b/drivers/gpu/drm/i915/i915_timeline.c index 2f4907364920..5fbea0892f33 100644 --- a/drivers/gpu/drm/i915/i915_timeline.c +++ b/drivers/gpu/drm/i915/i915_timeline.c @@ -253,7 +253,6 @@ int i915_timeline_init(struct drm_i915_private *i915, spin_lock_init(&timeline->lock); mutex_init(&timeline->mutex); - INIT_ACTIVE_REQUEST(&timeline->barrier); INIT_ACTIVE_REQUEST(&timeline->last_request); INIT_LIST_HEAD(&timeline->requests); @@ -326,7 +325,6 @@ void i915_timeline_fini(struct i915_timeline *timeline) { GEM_BUG_ON(timeline->pin_count); GEM_BUG_ON(!list_empty(&timeline->requests)); - GEM_BUG_ON(i915_active_request_isset(&timeline->barrier)); i915_syncmap_free(&timeline->sync); diff --git a/drivers/gpu/drm/i915/i915_timeline.h b/drivers/gpu/drm/i915/i915_timeline.h index 4ca7f80bdf6d..27668a1a69a3 100644 --- a/drivers/gpu/drm/i915/i915_timeline.h +++ b/drivers/gpu/drm/i915/i915_timeline.h @@ -110,19 +110,4 @@ void i915_timelines_init(struct drm_i915_private *i915); void i915_timelines_park(struct drm_i915_private *i915); void i915_timelines_fini(struct drm_i915_private *i915); -/** - * i915_timeline_set_barrier - orders submission between different timelines - * @timeline: timeline to set the barrier on - * @rq: request after which new submissions can proceed - * - * Sets the passed in request as the serialization point for all subsequent - * submissions on @timeline. Subsequent requests will not be submitted to GPU - * until the barrier has been completed. - */ -static inline int -i915_timeline_set_barrier(struct i915_timeline *tl, struct i915_request *rq) -{ - return i915_active_request_set(&tl->barrier, rq); -} - #endif diff --git a/drivers/gpu/drm/i915/i915_timeline_types.h b/drivers/gpu/drm/i915/i915_timeline_types.h index 1f5b55d9ffb5..5256a0b5c5f7 100644 --- a/drivers/gpu/drm/i915/i915_timeline_types.h +++ b/drivers/gpu/drm/i915/i915_timeline_types.h @@ -61,16 +61,6 @@ struct i915_timeline { */ struct i915_syncmap *sync; - /** - * Barrier provides the ability to serialize ordering between different - * timelines. - * - * Users can call i915_timeline_set_barrier which will make all - * subsequent submissions to this timeline be executed only after the - * barrier has been completed. - */ - struct i915_active_request barrier; - struct list_head link; struct drm_i915_private *i915; diff --git a/drivers/gpu/drm/i915/selftests/mock_timeline.c b/drivers/gpu/drm/i915/selftests/mock_timeline.c index 416d85233263..e084476469ef 100644 --- a/drivers/gpu/drm/i915/selftests/mock_timeline.c +++ b/drivers/gpu/drm/i915/selftests/mock_timeline.c @@ -16,7 +16,6 @@ void mock_timeline_init(struct i915_timeline *timeline, u64 context) spin_lock_init(&timeline->lock); mutex_init(&timeline->mutex); - INIT_ACTIVE_REQUEST(&timeline->barrier); INIT_ACTIVE_REQUEST(&timeline->last_request); INIT_LIST_HEAD(&timeline->requests);