From patchwork Fri May 29 16:43:29 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Harrison X-Patchwork-Id: 6509141 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 [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 1D96F9F38C for ; Fri, 29 May 2015 16:44:31 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1AD9A20829 for ; Fri, 29 May 2015 16:44:30 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 1492820797 for ; Fri, 29 May 2015 16:44:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 74FCC6EDE9; Fri, 29 May 2015 09:44:28 -0700 (PDT) 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 BE4BC6EDE9 for ; Fri, 29 May 2015 09:44:26 -0700 (PDT) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga102.jf.intel.com with ESMTP; 29 May 2015 09:44:27 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,518,1427785200"; d="scan'208";a="578883920" Received: from johnharr-linux.isw.intel.com ([10.102.226.188]) by orsmga003.jf.intel.com with ESMTP; 29 May 2015 09:44:25 -0700 From: John.C.Harrison@Intel.com To: Intel-GFX@Lists.FreeDesktop.Org Date: Fri, 29 May 2015 17:43:29 +0100 Message-Id: <1432917856-12261-9-git-send-email-John.C.Harrison@Intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1432917856-12261-1-git-send-email-John.C.Harrison@Intel.com> References: <1432917856-12261-1-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 08/55] drm/i915: Update alloc_request to return the allocated request 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 The alloc_request() function does not actually return the newly allocated request. Instead, it must be pulled from ring->outstanding_lazy_request. This patch fixes this so that code can create a request and start using it knowing exactly which request it actually owns. v2: Updated for new i915_gem_request_alloc() scheme. For: VIZ-5115 Signed-off-by: John Harrison Reviewed-by: Tomas Elf --- drivers/gpu/drm/i915/i915_drv.h | 3 ++- drivers/gpu/drm/i915/i915_gem.c | 10 +++++++--- drivers/gpu/drm/i915/i915_gem_execbuffer.c | 3 ++- drivers/gpu/drm/i915/intel_lrc.c | 3 ++- drivers/gpu/drm/i915/intel_ringbuffer.c | 3 ++- 5 files changed, 15 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index bb8544c..ab1b3ec 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2193,7 +2193,8 @@ struct drm_i915_gem_request { }; int i915_gem_request_alloc(struct intel_engine_cs *ring, - struct intel_context *ctx); + struct intel_context *ctx, + struct drm_i915_gem_request **req_out); void i915_gem_request_cancel(struct drm_i915_gem_request *req); void i915_gem_request_free(struct kref *req_ref); diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 458a449..ba2e7f7 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2634,13 +2634,17 @@ void i915_gem_request_free(struct kref *req_ref) } int i915_gem_request_alloc(struct intel_engine_cs *ring, - struct intel_context *ctx) + struct intel_context *ctx, + struct drm_i915_gem_request **req_out) { struct drm_i915_private *dev_priv = to_i915(ring->dev); struct drm_i915_gem_request *req; int ret; - if (ring->outstanding_lazy_request) + if (!req_out) + return -EINVAL; + + if ((*req_out = ring->outstanding_lazy_request) != NULL) return 0; req = kmem_cache_zalloc(dev_priv->requests, GFP_KERNEL); @@ -2687,7 +2691,7 @@ int i915_gem_request_alloc(struct intel_engine_cs *ring, */ intel_ring_reserved_space_reserve(req->ringbuf, MIN_SPACE_FOR_ADD_REQUEST); - ring->outstanding_lazy_request = req; + *req_out = ring->outstanding_lazy_request = req; return 0; err: diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 0a43665..f2d19afe 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -1407,6 +1407,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data, struct i915_address_space *vm; struct i915_execbuffer_params params_master; /* XXX: will be removed later */ struct i915_execbuffer_params *params = ¶ms_master; + struct drm_i915_gem_request *request; const u32 ctx_id = i915_execbuffer2_get_context_id(*args); u32 dispatch_flags; int ret; @@ -1606,7 +1607,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data, params->batch_obj_vm_offset = i915_gem_obj_offset(batch_obj, vm); /* Allocate a request for this batch buffer nice and early. */ - ret = i915_gem_request_alloc(ring, ctx); + ret = i915_gem_request_alloc(ring, ctx, &request); if (ret) goto err_batch_unpin; diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 348e6b8..1347601 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -807,6 +807,7 @@ static int logical_ring_prepare(struct intel_ringbuffer *ringbuf, static int intel_logical_ring_begin(struct intel_ringbuffer *ringbuf, struct intel_context *ctx, int num_dwords) { + struct drm_i915_gem_request *req; struct intel_engine_cs *ring = ringbuf->ring; struct drm_device *dev = ring->dev; struct drm_i915_private *dev_priv = dev->dev_private; @@ -822,7 +823,7 @@ static int intel_logical_ring_begin(struct intel_ringbuffer *ringbuf, return ret; /* Preallocate the olr before touching the ring */ - ret = i915_gem_request_alloc(ring, ctx); + ret = i915_gem_request_alloc(ring, ctx, &req); if (ret) return ret; diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 7061b07..d766c1d 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -2264,6 +2264,7 @@ static int __intel_ring_prepare(struct intel_engine_cs *ring, int bytes) int intel_ring_begin(struct intel_engine_cs *ring, int num_dwords) { + struct drm_i915_gem_request *req; struct drm_i915_private *dev_priv = ring->dev->dev_private; int ret; @@ -2277,7 +2278,7 @@ int intel_ring_begin(struct intel_engine_cs *ring, return ret; /* Preallocate the olr before touching the ring */ - ret = i915_gem_request_alloc(ring, ring->default_context); + ret = i915_gem_request_alloc(ring, ring->default_context, &req); if (ret) return ret;