From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AABB1C4727D for ; Fri, 2 Oct 2020 12:59:49 +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 6E8D5206DC for ; Fri, 2 Oct 2020 12:59:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6E8D5206DC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com 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 4DC616E958; Fri, 2 Oct 2020 12:59:46 +0000 (UTC) Received: from mblankhorst.nl (mblankhorst.nl [141.105.120.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3FE8F6E954 for ; Fri, 2 Oct 2020 12:59:45 +0000 (UTC) From: Maarten Lankhorst To: intel-gfx@lists.freedesktop.org Date: Fri, 2 Oct 2020 14:58:40 +0200 Message-Id: <20201002125939.50817-3-maarten.lankhorst@linux.intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201002125939.50817-1-maarten.lankhorst@linux.intel.com> References: <20201002125939.50817-1-maarten.lankhorst@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 02/61] drm/i915: Add missing -EDEADLK handling to execbuf pinning X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" i915_vma_pin may fail with -EDEADLK when we start locking page tables, so ensure we handle this correctly. Signed-off-by: Maarten Lankhorst --- .../gpu/drm/i915/gem/i915_gem_execbuffer.c | 23 +++++++++++++++---- 1 file changed, 18 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c index 63e2f16204da..2fbe6fbe043a 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c @@ -419,13 +419,14 @@ static u64 eb_pin_flags(const struct drm_i915_gem_exec_object2 *entry, return pin_flags; } -static inline bool +static inline int eb_pin_vma(struct i915_execbuffer *eb, const struct drm_i915_gem_exec_object2 *entry, struct eb_vma *ev) { struct i915_vma *vma = ev->vma; u64 pin_flags; + int err; if (vma->node.size) pin_flags = vma->node.start; @@ -438,16 +439,24 @@ eb_pin_vma(struct i915_execbuffer *eb, /* Attempt to reuse the current location if available */ /* TODO: Add -EDEADLK handling here */ - if (unlikely(i915_vma_pin_ww(vma, &eb->ww, 0, 0, pin_flags))) { + err = i915_vma_pin_ww(vma, &eb->ww, 0, 0, pin_flags); + if (err == -EDEADLK) + return err; + + if (unlikely(err)) { if (entry->flags & EXEC_OBJECT_PINNED) return false; /* Failing that pick any _free_ space if suitable */ - if (unlikely(i915_vma_pin_ww(vma, &eb->ww, + err = i915_vma_pin_ww(vma, &eb->ww, entry->pad_to_size, entry->alignment, eb_pin_flags(entry, ev->flags) | - PIN_USER | PIN_NOEVICT))) + PIN_USER | PIN_NOEVICT); + if (err == -EDEADLK) + return err; + + if (unlikely(err)) return false; } @@ -896,7 +905,11 @@ static int eb_validate_vmas(struct i915_execbuffer *eb) if (err) return err; - if (eb_pin_vma(eb, entry, ev)) { + err = eb_pin_vma(eb, entry, ev); + if (err < 0) + return err; + + if (err > 0) { if (entry->offset != vma->node.start) { entry->offset = vma->node.start | UPDATE; eb->args->flags |= __EXEC_HAS_RELOC; -- 2.28.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx