From patchwork Sun Jun 10 19:43:25 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 10456739 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0201A60234 for ; Sun, 10 Jun 2018 19:44:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E696726E79 for ; Sun, 10 Jun 2018 19:44:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DB633274D0; Sun, 10 Jun 2018 19:44:18 +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 9380026E79 for ; Sun, 10 Jun 2018 19:44:18 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 07F066E0BC; Sun, 10 Jun 2018 19:44:18 +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 BA7B86E224 for ; Sun, 10 Jun 2018 19:44:14 +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 12004311-1500050 for multiple; Sun, 10 Jun 2018 20:44:11 +0100 Received: by haswell.alporthouse.com (sSMTP sendmail emulation); Sun, 10 Jun 2018 20:44:11 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Sun, 10 Jun 2018 20:43:25 +0100 Message-Id: <20180610194325.13467-18-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180610194325.13467-1-chris@chris-wilson.co.uk> References: <20180610194325.13467-1-chris@chris-wilson.co.uk> X-Originating-IP: 78.156.65.138 X-Country: code=GB country="United Kingdom" ip=78.156.65.138 Subject: [Intel-gfx] [PATCH 17/17] drm/i915/gtt: Enable full-ppgtt by default everywhere 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: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP We should we have all the kinks worked out and full-ppgtt now works reliably on gen7 (Ivybridge, Valleyview/Baytrail and Haswell). If we can let userspace have full control over their own ppgtt, it makes softpinning far more effective, in turn making GPU dispatch far more efficient and more secure (due to better mm segregation). Signed-off-by: Chris Wilson Cc: Joonas Lahtinen Cc: Mika Kuoppala Cc: Matthew Auld --- drivers/gpu/drm/i915/i915_gem_gtt.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 5795934918ab..4f363bb140dc 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -179,13 +179,11 @@ int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv, return 0; } - if (HAS_LOGICAL_RING_CONTEXTS(dev_priv)) { - if (has_full_48bit_ppgtt) - return 3; + if (has_full_48bit_ppgtt) + return 3; - if (has_full_ppgtt) - return 2; - } + if (has_full_ppgtt) + return 2; return 1; }