From patchwork Tue Mar 18 05:48:54 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Widawsky X-Patchwork-Id: 3847451 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 93E72BF540 for ; Tue, 18 Mar 2014 05:49:23 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BD9C520265 for ; Tue, 18 Mar 2014 05:49:22 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id F0FEC20260 for ; Tue, 18 Mar 2014 05:49:21 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id F40C12B0EF; Mon, 17 Mar 2014 22:49:20 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id 2821E2B0E3 for ; Mon, 17 Mar 2014 22:49:13 -0700 (PDT) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP; 17 Mar 2014 22:49:13 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,675,1389772800"; d="scan'208";a="474655804" Received: from unknown (HELO ironside.amr.corp.intel.com) ([10.255.13.186]) by orsmga001.jf.intel.com with ESMTP; 17 Mar 2014 22:49:12 -0700 From: Ben Widawsky To: Intel GFX Date: Mon, 17 Mar 2014 22:48:54 -0700 Message-Id: <1395121738-29126-23-git-send-email-benjamin.widawsky@intel.com> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1395121738-29126-1-git-send-email-benjamin.widawsky@intel.com> References: <1395121738-29126-1-git-send-email-benjamin.widawsky@intel.com> Subject: [Intel-gfx] [PATCH 22/26] drm/i915: Extract context switch skip logic 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=-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 We have some fanciness coming up. This patch just breaks out the logic. Signed-off-by: Ben Widawsky --- drivers/gpu/drm/i915/i915_gem_context.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index f918f2c..a899e11 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -634,6 +634,16 @@ mi_set_context(struct intel_ring_buffer *ring, return ret; } +static inline bool should_skip_switch(struct intel_ring_buffer *ring, + struct i915_hw_context *from, + struct i915_hw_context *to) +{ + if (from == to && from->last_ring == ring && !to->remap_slice) + return true; + + return false; +} + static int do_switch(struct intel_ring_buffer *ring, struct i915_hw_context *to) { @@ -648,7 +658,7 @@ static int do_switch(struct intel_ring_buffer *ring, BUG_ON(!i915_gem_obj_is_pinned(from->obj)); } - if (from == to && from->last_ring == ring && !to->remap_slice) + if (should_skip_switch(ring, from, to)) return 0; /* Trying to pin first makes error handling easier. */