From patchwork Mon Nov 24 18:49:31 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Harrison X-Patchwork-Id: 5369081 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 7D81C9F2F5 for ; Mon, 24 Nov 2014 18:50:29 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A0F0120490 for ; Mon, 24 Nov 2014 18:50:28 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id B04A62047B for ; Mon, 24 Nov 2014 18:50:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8BF606EE44; Mon, 24 Nov 2014 10:50:25 -0800 (PST) X-Original-To: Intel-GFX@lists.freedesktop.org Delivered-To: Intel-GFX@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id A056B6EE16 for ; Mon, 24 Nov 2014 10:50:17 -0800 (PST) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP; 24 Nov 2014 10:47:41 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.07,450,1413270000"; d="scan'208";a="642747671" Received: from johnharr-linux.isw.intel.com ([10.102.226.51]) by orsmga002.jf.intel.com with ESMTP; 24 Nov 2014 10:50:03 -0800 From: John.C.Harrison@Intel.com To: Intel-GFX@Lists.FreeDesktop.Org Date: Mon, 24 Nov 2014 18:49:31 +0000 Message-Id: <1416854990-1920-10-git-send-email-John.C.Harrison@Intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1416854990-1920-1-git-send-email-John.C.Harrison@Intel.com> References: <1416854990-1920-1-git-send-email-John.C.Harrison@Intel.com> Organization: Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ Subject: [Intel-gfx] [PATCH v3 09/28] drm/i915: Convert 'last_flip_req' to be a request not a seqno X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 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=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY 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 Converted 'last_flip_req' to be an actual request rather than a seqno value as part of the on going seqno to request changes. This includes reference counting the request being saved away to ensure it can not be retired and freed while the overlay code is still waiting on it. For: VIZ-4377 Signed-off-by: John Harrison Reviewed-by: Thomas Daniel --- drivers/gpu/drm/i915/intel_overlay.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c index dc2f4f2..5defc37 100644 --- a/drivers/gpu/drm/i915/intel_overlay.c +++ b/drivers/gpu/drm/i915/intel_overlay.c @@ -182,7 +182,7 @@ struct intel_overlay { u32 flip_addr; struct drm_i915_gem_object *reg_bo; /* flip handling */ - uint32_t last_flip_req; + struct drm_i915_gem_request *last_flip_req; void (*flip_tail)(struct intel_overlay *); }; @@ -217,17 +217,20 @@ static int intel_overlay_do_wait_request(struct intel_overlay *overlay, int ret; BUG_ON(overlay->last_flip_req); - ret = i915_add_request(ring, &overlay->last_flip_req); + i915_gem_request_assign(&overlay->last_flip_req, + ring->outstanding_lazy_request); + ret = i915_add_request(ring, NULL); if (ret) return ret; overlay->flip_tail = tail; - ret = i915_wait_seqno(ring, overlay->last_flip_req); + ret = i915_wait_seqno(ring, + i915_gem_request_get_seqno(overlay->last_flip_req)); if (ret) return ret; i915_gem_retire_requests(dev); - overlay->last_flip_req = 0; + i915_gem_request_assign(&overlay->last_flip_req, NULL); return 0; } @@ -286,7 +289,10 @@ static int intel_overlay_continue(struct intel_overlay *overlay, intel_ring_emit(ring, flip_addr); intel_ring_advance(ring); - return i915_add_request(ring, &overlay->last_flip_req); + WARN_ON(overlay->last_flip_req); + i915_gem_request_assign(&overlay->last_flip_req, + ring->outstanding_lazy_request); + return i915_add_request(ring, NULL); } static void intel_overlay_release_old_vid_tail(struct intel_overlay *overlay) @@ -366,10 +372,11 @@ static int intel_overlay_recover_from_interrupt(struct intel_overlay *overlay) struct intel_engine_cs *ring = &dev_priv->ring[RCS]; int ret; - if (overlay->last_flip_req == 0) + if (overlay->last_flip_req == NULL) return 0; - ret = i915_wait_seqno(ring, overlay->last_flip_req); + ret = i915_wait_seqno(ring, + i915_gem_request_get_seqno(overlay->last_flip_req)); if (ret) return ret; i915_gem_retire_requests(dev); @@ -377,7 +384,7 @@ static int intel_overlay_recover_from_interrupt(struct intel_overlay *overlay) if (overlay->flip_tail) overlay->flip_tail(overlay); - overlay->last_flip_req = 0; + i915_gem_request_assign(&overlay->last_flip_req, NULL); return 0; }