From patchwork Wed Dec 4 19:23:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 11273493 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 579396C1 for ; Wed, 4 Dec 2019 19:23:49 +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 3EEB820675 for ; Wed, 4 Dec 2019 19:23:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3EEB820675 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 1ABBB6EA03; Wed, 4 Dec 2019 19:23:48 +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 C95576E974 for ; Wed, 4 Dec 2019 19:23:46 +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 19462013-1500050 for ; Wed, 04 Dec 2019 19:23:41 +0000 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Wed, 4 Dec 2019 19:23:43 +0000 Message-Id: <20191204192343.3939007-2-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191204192343.3939007-1-chris@chris-wilson.co.uk> References: <20191204192343.3939007-1-chris@chris-wilson.co.uk> MIME-Version: 1.0 Subject: [Intel-gfx] [CI 2/2] drm/i915: Try hard to bind the context 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" It is not acceptable for context pinning to fail with -ENOSPC as we should always be able to make space in the GGTT. The only reason we may fail is that other "temporary" context pins are reserving their space and we need to wait for an available slot. Closes: https://gitlab.freedesktop.org/drm/intel/issues/676 Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/i915_gem_gtt.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 10b3d6d44045..7e20c6f62cd5 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -1934,9 +1934,24 @@ int gen6_ppgtt_pin(struct i915_ppgtt *base) * size. We allocate at the top of the GTT to avoid fragmentation. */ if (!atomic_read(&ppgtt->pin_count)) { - err = i915_vma_pin(ppgtt->vma, - 0, GEN6_PD_ALIGN, - PIN_GLOBAL | PIN_HIGH); + do { + struct i915_address_space *vm = ppgtt->vma->vm; + + err = i915_vma_pin(ppgtt->vma, + 0, GEN6_PD_ALIGN, + PIN_GLOBAL | PIN_HIGH); + if (err != -ENOSPC) + break; + + /* We don't take no for an answer! */ + err = mutex_lock_interruptible(&vm->mutex); + if (err == 0) { + err = i915_gem_evict_vm(vm); + mutex_unlock(&vm->mutex); + } + if (err) + break; + } while (1); } if (!err) atomic_inc(&ppgtt->pin_count);