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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B3E2CC433F5 for ; Mon, 4 Oct 2021 13:32:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9DFDD61166 for ; Mon, 4 Oct 2021 13:32:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236966AbhJDNd5 (ORCPT ); Mon, 4 Oct 2021 09:33:57 -0400 Received: from mail.kernel.org ([198.145.29.99]:48020 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236899AbhJDNc0 (ORCPT ); Mon, 4 Oct 2021 09:32:26 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 939AF61A08; Mon, 4 Oct 2021 13:14:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1633353274; bh=2JuWJjrGjJKOeFAx2xhPwy4rk5xjUr4qIqgCUTVVo2c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VNiQX56wEKsRARIBm4n/rprxJ3RW5CQwklRKyjuB6B6r8A0l4kEor/d1POMTAz/fR HrnMsojad2YFcLh0TyNmmanyGcsS1eZssRMcF6kPhKgGYjGfY8geLsVZTt5WPOWjc+ vesRDx4josQB7dYQ9ViKglUCRnxpHN0WAVOI3MkE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?UTF-8?q?Christian=20K=C3=B6nig?= , Mike Lothian , Guchun Chen , Alex Deucher , Sasha Levin Subject: [PATCH 5.14 031/172] drm/amdgpu: avoid over-handle of fence driver fini in s3 test (v2) Date: Mon, 4 Oct 2021 14:51:21 +0200 Message-Id: <20211004125045.972625838@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211004125044.945314266@linuxfoundation.org> References: <20211004125044.945314266@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Guchun Chen [ Upstream commit 067f44c8b4590c3f24d21a037578a478590f2175 ] In amdgpu_fence_driver_hw_fini, no need to call drm_sched_fini to stop scheduler in s3 test, otherwise, fence related failure will arrive after resume. To fix this and for a better clean up, move drm_sched_fini from fence_hw_fini to fence_sw_fini, as it's part of driver shutdown, and should never be called in hw_fini. v2: rename amdgpu_fence_driver_init to amdgpu_fence_driver_sw_init, to keep sw_init and sw_fini paired. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1668 Fixes: 8d35a2596164c1 ("drm/amdgpu: adjust fence driver enable sequence") Suggested-by: Christian König Tested-by: Mike Lothian Signed-off-by: Guchun Chen Reviewed-by: Christian König Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 ++--- drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 12 +++++++----- drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 4 ++-- 3 files changed, 11 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 112add12707d..d3247a5cceb4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -3602,9 +3602,9 @@ int amdgpu_device_init(struct amdgpu_device *adev, fence_driver_init: /* Fence driver */ - r = amdgpu_fence_driver_init(adev); + r = amdgpu_fence_driver_sw_init(adev); if (r) { - dev_err(adev->dev, "amdgpu_fence_driver_init failed\n"); + dev_err(adev->dev, "amdgpu_fence_driver_sw_init failed\n"); amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_FENCE_INIT_FAIL, 0, 0); goto failed; } @@ -3944,7 +3944,6 @@ int amdgpu_device_resume(struct drm_device *dev, bool fbcon) } amdgpu_fence_driver_hw_init(adev); - r = amdgpu_device_ip_late_init(adev); if (r) return r; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c index 49c5c7331c53..7495911516c2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c @@ -498,7 +498,7 @@ int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring, } /** - * amdgpu_fence_driver_init - init the fence driver + * amdgpu_fence_driver_sw_init - init the fence driver * for all possible rings. * * @adev: amdgpu device pointer @@ -509,13 +509,13 @@ int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring, * amdgpu_fence_driver_start_ring(). * Returns 0 for success. */ -int amdgpu_fence_driver_init(struct amdgpu_device *adev) +int amdgpu_fence_driver_sw_init(struct amdgpu_device *adev) { return 0; } /** - * amdgpu_fence_driver_fini - tear down the fence driver + * amdgpu_fence_driver_hw_fini - tear down the fence driver * for all possible rings. * * @adev: amdgpu device pointer @@ -531,8 +531,7 @@ void amdgpu_fence_driver_hw_fini(struct amdgpu_device *adev) if (!ring || !ring->fence_drv.initialized) continue; - if (!ring->no_scheduler) - drm_sched_fini(&ring->sched); + /* You can't wait for HW to signal if it's gone */ if (!drm_dev_is_unplugged(&adev->ddev)) r = amdgpu_fence_wait_empty(ring); @@ -560,6 +559,9 @@ void amdgpu_fence_driver_sw_fini(struct amdgpu_device *adev) if (!ring || !ring->fence_drv.initialized) continue; + if (!ring->no_scheduler) + drm_sched_fini(&ring->sched); + for (j = 0; j <= ring->fence_drv.num_fences_mask; ++j) dma_fence_put(ring->fence_drv.fences[j]); kfree(ring->fence_drv.fences); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h index 27adffa7658d..9c11ced4312c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h @@ -106,7 +106,6 @@ struct amdgpu_fence_driver { struct dma_fence **fences; }; -int amdgpu_fence_driver_init(struct amdgpu_device *adev); void amdgpu_fence_driver_force_completion(struct amdgpu_ring *ring); int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring, @@ -115,9 +114,10 @@ int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring, int amdgpu_fence_driver_start_ring(struct amdgpu_ring *ring, struct amdgpu_irq_src *irq_src, unsigned irq_type); +void amdgpu_fence_driver_hw_init(struct amdgpu_device *adev); void amdgpu_fence_driver_hw_fini(struct amdgpu_device *adev); +int amdgpu_fence_driver_sw_init(struct amdgpu_device *adev); void amdgpu_fence_driver_sw_fini(struct amdgpu_device *adev); -void amdgpu_fence_driver_hw_init(struct amdgpu_device *adev); int amdgpu_fence_emit(struct amdgpu_ring *ring, struct dma_fence **fence, unsigned flags); int amdgpu_fence_emit_polling(struct amdgpu_ring *ring, uint32_t *s, -- 2.33.0