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mx.google.com; dkim=pass header.i=@microsoft.com header.s=selector1 header.b=czxMEuJu; spf=pass (google.com: domain of alexander.levin@microsoft.com designates 104.47.40.120 as permitted sender) smtp.mailfrom=Alexander.Levin@microsoft.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=microsoft.com Authentication-Results: mx.google.com; dkim=pass header.i=@microsoft.com header.s=selector1 header.b=czxMEuJu; spf=pass (google.com: domain of alexander.levin@microsoft.com designates 104.47.40.120 as permitted sender) smtp.mailfrom=Alexander.Levin@microsoft.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=microsoft.com From: Sasha Levin To: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" CC: Robin Murphy , Mathieu Poirier , Greg Kroah-Hartman , Sasha Levin Subject: [PATCH AUTOSEL for 4.9 236/281] coresight: tmc: Configure DMA mask appropriately Thread-Topic: [PATCH AUTOSEL for 4.9 236/281] coresight: tmc: Configure DMA mask appropriately Thread-Index: AQHTv5uxJTIdOGMgVEOEtzch1uE/9Q== Date: Mon, 19 Mar 2018 16:02:33 +0000 Message-ID: <20180319155742.13731-236-alexander.levin@microsoft.com> References: <20180319155742.13731-1-alexander.levin@microsoft.com> In-Reply-To: <20180319155742.13731-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;DM5PR2101MB0885;7:71w6GGhRhHs9BleBuHiGeZshOZI5IbDAG3oRvP3pWzZ4tCSWfQHxKXeGfgWq9YrMJGdixfog7a+xrJzcE+z/9UsmeVGgP1kXnTQqxziyi+Eqm7+jY3LkMIfpdOB4qeZf8UGiT6qP1R79jSRdVOw6ql1CXT2o4Skz4aUedUjjq/2l+LKNMFrW8F7ZEjsXb5XyF4/XE4X/1brhooqe27upogfNnILzW625jsZj78Owgede9PYkoGLF2ow8YfgkcmZl;20:w2ydOnswGKCrsCgODQ+qvwTThX6nnyXPEDZVuMkRTmTXLLX805HaS4i/uCpYg7tiBTDYAtHzmBe9ZFVQ20w0FJBCL4b7cT4UcjISHhw2WLxMSb9dFCcUzVig0Xl3hhdmo0uojt8wTdviqhXU1ebXUOgnB+R3ztOF9ha2jAKccmY= x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 49d8c637-77b0-4c92-b850-08d58db32755 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB0885; 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Especially since it can address more than the 32-bit default mask set by the AMBA bus code. Signed-off-by: Robin Murphy Tested-by: Suzuki K Poulose Signed-off-by: Mathieu Poirier Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/hwtracing/coresight/coresight-tmc.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/hwtracing/coresight/coresight-tmc.c b/drivers/hwtracin= g/coresight/coresight-tmc.c index d8517d2a968c..864488793f09 100644 --- a/drivers/hwtracing/coresight/coresight-tmc.c +++ b/drivers/hwtracing/coresight/coresight-tmc.c @@ -362,6 +362,13 @@ static int tmc_probe(struct amba_device *adev, const s= truct amba_id *id) desc.type =3D CORESIGHT_DEV_TYPE_SINK; desc.subtype.sink_subtype =3D CORESIGHT_DEV_SUBTYPE_SINK_BUFFER; desc.ops =3D &tmc_etr_cs_ops; + /* + * ETR configuration uses a 40-bit AXI master in place of + * the embedded SRAM of ETB/ETF. + */ + ret =3D dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40)); + if (ret) + goto out; } else { desc.type =3D CORESIGHT_DEV_TYPE_LINKSINK; desc.subtype.link_subtype =3D CORESIGHT_DEV_SUBTYPE_LINK_FIFO; --=20 2.14.1