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[216.228.112.22]) by smtp.gmail.com with ESMTPSA id w202sm10092100pff.198.2021.02.22.18.12.48 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Mon, 22 Feb 2021 18:12:49 -0800 (PST) Date: Mon, 22 Feb 2021 18:13:44 -0800 From: Nicolin Chen To: Dmitry Osipenko Subject: Re: [PATCH] iommu/tegra-smmu: Fix mc errors on tegra124-nyan Message-ID: <20210223021343.GA6539@Asurada-Nvidia> References: <20210218220702.1962-1-nicoleotsuka@gmail.com> <9d6445c0-9574-1650-e327-32b11716f87e@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <9d6445c0-9574-1650-e327-32b11716f87e@gmail.com> User-Agent: Mutt/1.9.4 (2018-02-28) Cc: guillaume.tucker@collabora.com, iommu@lists.linux-foundation.org, jonathanh@nvidia.com, thierry.reding@gmail.com, linux-tegra@vger.kernel.org, will@kernel.org, linux-kernel@vger.kernel.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" SGkgRG1pdHJ5LAoKT24gU2F0LCBGZWIgMjAsIDIwMjEgYXQgMDg6MTY6MjJBTSArMDMwMCwgRG1p dHJ5IE9zaXBlbmtvIHdyb3RlOgo+IDE5LjAyLjIwMjEgMDE6MDcsIE5pY29saW4gQ2hlbiDQv9C4 0YjQtdGCOgo+ID4gQ29tbWl0IDI1OTM4YzczY2Q3OSAoImlvbW11L3RlZ3JhLXNtbXU6IFJld29y ayB0ZWdyYV9zbW11X3Byb2JlX2RldmljZSgpIikKPiA+IHJlbW92ZWQgY2VydGFpbiBoYWNrIGlu IHRoZSB0ZWdyYV9zbW11X3Byb2JlKCkgYnkgcmVseWluZyBvbiBJT01NVSBjb3JlIHRvCj4gPiBv Zl94bGF0ZSBTTU1VJ3MgU0lEIHBlciBkZXZpY2UsIHNvIGFzIHRvIGdldCByaWQgb2YgdGVncmFf c21tdV9maW5kKCkgYW5kCj4gPiB0ZWdyYV9zbW11X2NvbmZpZ3VyZSgpIHRoYXQgYXJlIHR5cGlj YWxseSBkb25lIGluIHRoZSBJT01NVSBjb3JlIGFsc28uCj4gPiAKPiA+IFRoaXMgYXBwcm9hY2gg d29ya3MgZm9yIGJvdGggZXhpc3RpbmcgZGV2aWNlcyB0aGF0IGhhdmUgRFQgbm9kZXMgYW5kIG90 aGVyCj4gPiBkZXZpY2VzIChsaWtlIFBDSSBkZXZpY2UpIHRoYXQgZG9uJ3QgZXhpc3QgaW4gRFQs IG9uIFRlZ3JhMjEwIGFuZCBUZWdyYTMKPiA+IHVwb24gdGVzdGluZy4gSG93ZXZlciwgUGFnZSBG YXVsdCBlcnJvcnMgYXJlIHJlcG9ydGVkIG9uIHRlZ3JhMTI0LU55YW46Cj4gPiAKPiA+ICAgdGVn cmEtbWMgNzAwMTkwMDAubWVtb3J5LWNvbnRyb2xsZXI6IGRpc3BsYXkwYTogcmVhZCBAMHhmZTA1 NmI0MDoKPiA+IAkgRU1FTSBhZGRyZXNzIGRlY29kZSBlcnJvciAoU01NVSB0cmFuc2xhdGlvbiBl cnJvciBbLS1TXSkKPiA+ICAgdGVncmEtbWMgNzAwMTkwMDAubWVtb3J5LWNvbnRyb2xsZXI6IGRp c3BsYXkwYTogcmVhZCBAMHhmZTA1NmI0MDoKPiA+IAkgUGFnZSBmYXVsdCAoU01NVSB0cmFuc2xh dGlvbiBlcnJvciBbLS1TXSkKPiA+IAo+ID4gQWZ0ZXIgZGVidWdnaW5nLCBJIGZvdW5kIHRoYXQg dGhlIG1lbnRpb25lZCBjb21taXQgY2hhbmdlZCBzb21lIGZ1bmN0aW9uCj4gPiBjYWxsYmFjayBz ZXF1ZW5jZSBvZiB0ZWdyYS1zbW11J3MsIHJlc3VsdGluZyBpbiBlbmFibGluZyBTTU1VIGZvciBk aXNwbGF5Cj4gPiBjbGllbnQgYmVmb3JlIGRpc3BsYXkgZHJpdmVyIGdldHMgaW5pdGlhbGl6ZWQu IEkgY291bGRuJ3QgcmVwcm9kdWNlIGV4YWN0Cj4gPiBzYW1lIGlzc3VlIG9uIFRlZ3JhMjEwIGFz IFRlZ3JhMTI0IChhcm0tMzIpIGRpZmZlcnMgYXQgYXJjaC1sZXZlbCBjb2RlLgo+IAo+IEhlbGxv IE5pY29saW4sCj4gCj4gQ291bGQgeW91IHBsZWFzZSBleHBsYWluIGluIGEgbW9yZSBkZXRhaWxz IHdoYXQgZXhhY3RseSBtYWtlcyB0aGUKPiBkaWZmZXJlbmNlIGZvciB0aGUgY2FsbGJhY2sgc2Vx dWVuY2U/CgpIZXJlIGlzIGEgbG9nIHdpdGggNS4xMS4wLXJjNjoKaHR0cHM6Ly9sYXZhLmNvbGxh Ym9yYS5jby51ay9zY2hlZHVsZXIvam9iLzMxODc4NDkKW2R1bXBfc3RhY2sgd2FzIGFkZGVkIGlu IHNvbWUgdGVncmEtc21tdSBmdW5jdGlvbnNdCgpBbmQgaGVyZSBpcyBhIGNvcnJlc3BvbmRpbmcg bG9nIHdpdGggcmV2ZXJ0aW5nIHRoZSBvcmlnaW5hbCBjb21taXQ6Cmh0dHBzOi8vbGF2YS5jb2xs YWJvcmEuY28udWsvc2NoZWR1bGVyL2pvYi8zMTg3ODUxCgpIZXJlIGlzIGEgbG9nIHdpdGggNS4x MS4wLXJjNy1uZXh0LTIwMjEwMjEwOgpodHRwczovL2xhdmEuY29sbGFib3JhLmNvLnVrL3NjaGVk dWxlci9qb2IvMzIxMDI0NQoKQW5kIGhlcmUgaXMgYSBjb3JyZXNwb25kaW5nIGxvZyB3aXRoIHJl dmVydGluZyB0aGUgb3JpZ2luYWwgY29tbWl0OgpodHRwczovL2xhdmEuY29sbGFib3JhLmNvLnVr L3NjaGVkdWxlci9qb2IvMzIxMDU5NgoKQm90aCBmYWlsaW5nIGxvZ3Mgc2hvdyB0aGF0IG1jIGVy cm9ycyBzdGFydGVkIHJpZ2h0IGFmdGVyIGNsaWVudCBEQwpnb3QgZW5hYmxlZCBieSAtPmF0dGFj aF9kZXYoKSBjYWxsYmFjayB0aGF0IGluIHRoZSBwYXNzaW5nIGxvZ3Mgd2FzCm5vdCBjYWxsZWQg dW50aWwgSG9zdDF4IGRyaXZlciBpbml0LiBBbmQgbm90ZSB0aGF0IHR3byBmYWlsaW5nIGxvZ3MK c2hvdyB0aGF0IC0+YXR0YWNoX2RldigpIGNvdWxkIGJlIGNhbGxlZCBmcm9tIHR3byBkaWZmZXJl bnQgc291cmNlcywKb2ZfZG1hX2NvbmZpZ3VyZV9pZCgpIG9yIGFyY2hfc2V0dXBfZG1hX29wcygp LgoKVGhlIHJlYXNvbiB3aHkgLT5hdHRhY2hfZGV2KCkgZ2V0cyBjYWxsZWQgaXMgcHJvYmFibHkg cmVsYXRlZCB0byB0aGUKZm9sbG93aW5nIHJlYXNvbnMgKHNvcnJ5LCBjYW4ndCBiZSAxMDAlIHN1 cmUgYXMgSSBkb24ndCBoYXZlIFRlZ3JhMTI0Cm9yIG90aGVyIDMyYml0IFRlZ3JhIGJvYXJkIHRv IHRlc3QpOgoxKSBXaXRoIHRoZSBjb21taXQgcmV2ZXJ0ZWQsIGFsbCBjbGllbnRzIGFyZSBwcm9i ZWQgaW4gImFyY2giIHN0YWdlLAogICB3aGljaCBpcyBldmVuIHByaW9yIHRvIGlvbW11IGNvcmUg aW5pdGlhbGl6YXRpb24gLS0gaW5jbHVkaW5nIGl0CiAgIHNldHRpbmcgZGVmYXVsdCBkb21haW4g dHlwZS4gVGhpcyBwcm9iYWJseSBtZXNzZWQgdXAgdGhlIHR5cGUgb2YKICAgYWxsb2NhdGluZyBk b21haW5zIGFnYWluc3QgdGhlIGRlZmF1bHQgZG9tYWluIHR5cGUuIEFsc28gaW50ZXJuYWwKICAg Z3JvdXAgaXMgc29tZWhvdyBhZmZlY3RlZC4gU28gc29tZSBjb25kaXRpb24gY2hlY2sgaW4gaW9t bXUgY29yZQogICBmYWlsZWQgYW5kIHRoZW4gaXQgYnlwYXNzZWQgLT5hdHRhY2hfZGV2IGNhbGxi YWNrIGluIHJlYWxseV9wcm9iZQogICBzdGFnZSwgdW50aWwgSG9zdDF4IGRyaXZlciBkb2VzIGF0 dGFjaF9kZXYgYWdhaW4uCgoyKSAzMmJpdCBBUk0gaGFzIGFyY2hfc2V0dXBfZG1hX29wcygpIGRv ZXMgYW4gYWRkaXRpb25hbCBzZXQgb2YgaW9tbXUKICAgZG9tYWluIGFsbG9jYXRpb24gKyBhdHRh Y2hfZGV2KCksIGFmdGVyIG9mX2RtYV9jb25maWd1cmVfaWQoKSBkaWQKICAgb25jZS4gVGhpcyBp c24ndCByZXByb2R1Y2libGUgZm9yIG1lIG9uIFRlZ3JhMjEwLgoKQXMgZGVidWdnaW5nIG9ubGlu ZSBpc24ndCB2ZXJ5IGVmZmljaWVudCwgYW5kIGdpdmVuIHRoYXQgVGhpZXJyeSBoYXMKYmVlbiB3 b3JraW5nIG9uIHRoZSBsaW5lYXIgbWFwcGluZyBvZiBmcmFtZWJ1ZmZlciBjYXJ2ZW91dCwgSSBj aG9vc2UKdG8gcGFydGlhbGx5IHJldmVydCBhcyBhIHF1aWNrIGZpeC4KClRoYW5rcwpfX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwppb21tdSBtYWlsaW5nIGxp c3QKaW9tbXVAbGlzdHMubGludXgtZm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZv dW5kYXRpb24ub3JnL21haWxtYW4vbGlzdGluZm8vaW9tbXU=