From patchwork Wed Nov 6 15:48:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 11230647 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 13DC216B1 for ; Wed, 6 Nov 2019 15:49:04 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F0F37217F5 for ; Wed, 6 Nov 2019 15:49:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F0F37217F5 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=chris-wilson.co.uk Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2F2A86EDB2; Wed, 6 Nov 2019 15:49:03 +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 E99806EDB2 for ; Wed, 6 Nov 2019 15:49:01 +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 19104018-1500050 for multiple; Wed, 06 Nov 2019 15:48:13 +0000 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Wed, 6 Nov 2019 15:48:09 +0000 Message-Id: <20191106154810.5843-2-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191106154810.5843-1-chris@chris-wilson.co.uk> References: <20191106154810.5843-1-chris@chris-wilson.co.uk> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 2/3] drm/i915: Drop inspection of execbuf flags during evict 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" With the goal of removing the serialisation from around execbuf, we will no longer have the privilege of there being a single execbuf in flight at any time and so will only be able to inspect the user's flags within the carefully controlled execbuf context. i915_gem_evict_for_node() is the only user outside of execbuf that currently peeks at the flag to convert an overlapping softpinned request from ENOSPC to EINVAL. Retract this nicety and only report ENOSPC if the location is in current use, either due to this execbuf or another. Signed-off-by: Chris Wilson Cc: Joonas Lahtinen Reviewed-by: Joonas Lahtinen --- drivers/gpu/drm/i915/i915_gem_evict.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c index 7e62c310290f..1395018c657a 100644 --- a/drivers/gpu/drm/i915/i915_gem_evict.c +++ b/drivers/gpu/drm/i915/i915_gem_evict.c @@ -292,7 +292,8 @@ int i915_gem_evict_for_node(struct i915_address_space *vm, GEM_BUG_ON(!drm_mm_node_allocated(node)); vma = container_of(node, typeof(*vma), node); - /* If we are using coloring to insert guard pages between + /* + * If we are using coloring to insert guard pages between * different cache domains within the address space, we have * to check whether the objects on either side of our range * abutt and conflict. If they are in conflict, then we evict @@ -309,22 +310,18 @@ int i915_gem_evict_for_node(struct i915_address_space *vm, } } - if (flags & PIN_NONBLOCK && - (i915_vma_is_pinned(vma) || i915_vma_is_active(vma))) { + if (i915_vma_is_pinned(vma)) { ret = -ENOSPC; break; } - /* Overlap of objects in the same batch? */ - if (i915_vma_is_pinned(vma)) { + if (flags & PIN_NONBLOCK && i915_vma_is_active(vma)) { ret = -ENOSPC; - if (vma->exec_flags && - *vma->exec_flags & EXEC_OBJECT_PINNED) - ret = -EINVAL; break; } - /* Never show fear in the face of dragons! + /* + * Never show fear in the face of dragons! * * We cannot directly remove this node from within this * iterator and as with i915_gem_evict_something() we employ