Message ID | 20210512142648.666476-16-andrey.grodzovsky@amd.com |
---|---|
State | New |
Headers | show
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Wed, 12 May 2021 14:27:42 +0000 From: Andrey Grodzovsky <andrey.grodzovsky@amd.com> To: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-pci@vger.kernel.org, ckoenig.leichtzumerken@gmail.com, daniel.vetter@ffwll.ch, Harry.Wentland@amd.com Cc: ppaalanen@gmail.com, Alexander.Deucher@amd.com, gregkh@linuxfoundation.org, helgaas@kernel.org, Felix.Kuehling@amd.com, Andrey Grodzovsky <andrey.grodzovsky@amd.com>, =?utf-8?q?Christian_K=C3=B6n?= =?utf-8?q?ig?= <christian.koenig@amd.com> Subject: [PATCH v7 15/16] drm/amdgpu: Verify DMA opearations from device are done Date: Wed, 12 May 2021 10:26:47 -0400 Message-Id: <20210512142648.666476-16-andrey.grodzovsky@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210512142648.666476-1-andrey.grodzovsky@amd.com> References: <20210512142648.666476-1-andrey.grodzovsky@amd.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Originating-IP: [2607:fea8:3edf:49b0:7576:4f76:97d8:1487] X-ClientProxiedBy: YTOPR0101CA0032.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b00:15::45) To SN6PR12MB4623.namprd12.prod.outlook.com (2603:10b6:805:e9::17) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from agrodzovsky-All-Series.hitronhub.home (2607:fea8:3edf:49b0:7576:4f76:97d8:1487) by YTOPR0101CA0032.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b00:15::45) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4108.30 via Frontend Transport; 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RFC Support hot device unplug in amdgpu
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diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 83006f45b10b..5e6af9e0b7bf 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -1314,7 +1314,13 @@ amdgpu_pci_remove(struct pci_dev *pdev) drm_dev_unplug(dev); amdgpu_driver_unload_kms(dev); + /* + * Flush any in flight DMA operations from device. + * Clear the Bus Master Enable bit and then wait on the PCIe Device + * StatusTransactions Pending bit. + */ pci_disable_device(pdev); + pci_wait_for_pending_transaction(pdev); } static void