From patchwork Wed Jan 8 15:35:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 11323939 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 1DB221395 for ; Wed, 8 Jan 2020 15:36:29 +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 065AD20720 for ; Wed, 8 Jan 2020 15:36:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 065AD20720 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 8EE0B6E8AD; Wed, 8 Jan 2020 15:36:28 +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 8CDA96E8AD for ; Wed, 8 Jan 2020 15:36:26 +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 19810611-1500050 for multiple; Wed, 08 Jan 2020 15:35:50 +0000 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Wed, 8 Jan 2020 15:35:49 +0000 Message-Id: <20200108153550.3803446-1-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.25.0.rc1 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 1/2] drm/i915: Early return for no-op i915_vma_pin_fence() 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" If we have no fence and desire no fence on the vma, return before we try and take the vm->mutex. Signed-off-by: Chris Wilson Cc: Mika Kuoppala Reviewed-by: Mika Kuoppala --- drivers/gpu/drm/i915/i915_gem_fence_reg.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem_fence_reg.c b/drivers/gpu/drm/i915/i915_gem_fence_reg.c index 71efccfde122..d9c34a23cd67 100644 --- a/drivers/gpu/drm/i915/i915_gem_fence_reg.c +++ b/drivers/gpu/drm/i915/i915_gem_fence_reg.c @@ -412,6 +412,9 @@ int i915_vma_pin_fence(struct i915_vma *vma) { int err; + if (!vma->fence && !i915_gem_object_is_tiled(vma->obj)) + return 0; + /* * Note that we revoke fences on runtime suspend. Therefore the user * must keep the device awake whilst using the fence. From patchwork Wed Jan 8 15:35:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 11323941 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 0D9896C1 for ; Wed, 8 Jan 2020 15:36:46 +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 E9CC62067D for ; Wed, 8 Jan 2020 15:36:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E9CC62067D 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 867856E8B1; Wed, 8 Jan 2020 15:36:45 +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 9C2566E8B0 for ; Wed, 8 Jan 2020 15:36:43 +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 19810612-1500050 for multiple; Wed, 08 Jan 2020 15:35:51 +0000 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Wed, 8 Jan 2020 15:35:50 +0000 Message-Id: <20200108153550.3803446-2-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.25.0.rc1 In-Reply-To: <20200108153550.3803446-1-chris@chris-wilson.co.uk> References: <20200108153550.3803446-1-chris@chris-wilson.co.uk> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 2/2] drm/i915: Reduce warning for i915_vma_pin_iomap() without runtime-pm 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Access through the GGTT (iomap) into the vma does require the device to be awake. However, we often take the i915_vma_pin_iomap() as an early preparatory step that is long before we use the iomap. Asserting that the device is awake at pin time does not protect us, and is merely a nuisance. Signed-off-by: Chris Wilson Cc: Mika Kuoppala Reviewed-by: Mika Kuoppala --- drivers/gpu/drm/i915/i915_vma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c index cbd783c31adb..43d5c270bdb0 100644 --- a/drivers/gpu/drm/i915/i915_vma.c +++ b/drivers/gpu/drm/i915/i915_vma.c @@ -423,8 +423,6 @@ void __iomem *i915_vma_pin_iomap(struct i915_vma *vma) void __iomem *ptr; int err; - /* Access through the GTT requires the device to be awake. */ - assert_rpm_wakelock_held(vma->vm->gt->uncore->rpm); if (GEM_WARN_ON(!i915_vma_is_map_and_fenceable(vma))) { err = -ENODEV; goto err; @@ -456,6 +454,8 @@ void __iomem *i915_vma_pin_iomap(struct i915_vma *vma) goto err_unpin; i915_vma_set_ggtt_write(vma); + + /* NB Access through the GTT requires the device to be awake. */ return ptr; err_unpin: