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Fri, 25 Nov 2022 06:53:44 -0800 (PST) Date: Fri, 25 Nov 2022 20:23:36 +0530 From: Manivannan Sadhasivam To: Johan Hovold Cc: Johan Hovold , Bjorn Andersson , Andy Gross , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Will Deacon , Robin Murphy , Christoph Hellwig , Ard Biesheuvel , Catalin Marinas , linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] arm64: dts: qcom: sc8280xp: fix PCIe DMA coherency Message-ID: <20221125145336.GB9892@thinkpad> References: <20221124142501.29314-1-johan+linaro@kernel.org> <20221125142625.GA9892@thinkpad> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221125_065346_923421_DCEE8912 X-CRM114-Status: GOOD ( 32.38 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gRnJpLCBOb3YgMjUsIDIwMjIgYXQgMDM6NDM6NTlQTSArMDEwMCwgSm9oYW4gSG92b2xkIHdy b3RlOgo+IE9uIEZyaSwgTm92IDI1LCAyMDIyIGF0IDA3OjU2OjI1UE0gKzA1MzAsIE1hbml2YW5u YW4gU2FkaGFzaXZhbSB3cm90ZToKPiA+IE9uIFRodSwgTm92IDI0LCAyMDIyIGF0IDAzOjI1OjAx UE0gKzAxMDAsIEpvaGFuIEhvdm9sZCB3cm90ZToKPiA+ID4gVGhlIGRldmljZXMgb24gdGhlIFND ODI4MFhQIFBDSWUgYnVzZXMgYXJlIGNhY2hlIGNvaGVyZW50IGFuZCBtdXN0IGJlCj4gPiA+IG1h cmtlZCBhcyBzdWNoIHRvIGF2b2lkIGRhdGEgY29ycnVwdGlvbi4KPiA+ID4gCj4gPiA+IEEgY29o ZXJlbnQgZGV2aWNlIGNhbiwgZm9yIGV4YW1wbGUsIGVuZCB1cCBzbm9vcGluZyBzdGFsZSBkYXRh IGZyb20gdGhlCj4gPiA+IGNhY2hlcyBpbnN0ZWFkIG9mIHVzaW5nIGRhdGEgd3JpdHRlbiBieSB0 aGUgQ1BVIHRocm91Z2ggdGhlCj4gPiA+IG5vbi1jYWNoZWFibGUgbWFwcGluZyB3aGljaCBpcyB1 c2VkIGZvciBjb25zaXN0ZW50IERNQSBidWZmZXJzIGZvcgo+ID4gPiBub24tY29oZXJlbnQgZGV2 aWNlcy4KPiA+ID4gCj4gPiAKPiA+IEFsc28sIHRoZSBkZXZpY2UgbWF5IHdyaXRlIGludG8gdGhl IEwyIGNhY2hlIChvciB3aGF0ZXZlciBjYWNoZSB0aGF0IGlzCj4gPiBhY2Nlc3NpYmxlKSBpZiB0 aGVyZSBpcyBhbiBlbnRyeSBhbmQgdGhlIENQVSBtYXkgaW52YWxpZGF0ZSBpdCBiZWZvcmUgcmVh ZGluZwo+ID4gZnJvbSB0aGUgRE1BIGJ1ZmZlci4gVGhpcyB3aWxsIGVuZCB1cCBpbiBhIGRhdGEg bG9zcy4KPiAKPiBJIG1lbnRpb25lZCB0aGUgYWJvdmUgYXMgYW4gZXhhbXBsZSwgYnV0IGNsZWFy bHkgaXQgY2FuIGFmZmVjdCBhbHNvIHRoZQo+IG90aGVyIGRpcmVjdGlvbiAoZS5nLiBhcyBkZXNj cmliZWQgYmVsb3cpLgo+IAo+ID4gPiBOb3RlIHRoYXQgdGhpcyBpcyBtdWNoIG1vcmUgbGlrZWx5 IHRvIGhhcHBlbiBzaW5jZSBjb21taXQgYzQ0MDk0ZWVlMzJmCj4gPiA+ICgiYXJtNjQ6IGRtYTog RHJvcCBjYWNoZSBpbnZhbGlkYXRpb24gZnJvbSBhcmNoX2RtYV9wcmVwX2NvaGVyZW50KCkiKQo+ ID4gPiB0aGF0IHdhcyBhZGRlZCBpbiA2LjEgYW5kIHdoaWNoIHJlbW92ZWQgdGhlIGNhY2hlIGlu dmFsaWRhdGlvbiB3aGVuCj4gPiA+IHNldHRpbmcgdXAgdGhlIG5vbi1jYWNoZWFibGUgbWFwcGlu Zy4KPiA+ID4gCj4gPiA+IE1hcmtpbmcgdGhlIFBDSWUgZGV2aWNlcyBhcyBjb2hlcmVudCBzcGVj aWZpY2FsbHkgZml4ZXMgdGhlIGludGVybWl0dGVudAo+ID4gPiBOVk1lIHByb2JlIGZhaWx1cmVz IG9ic2VydmVkIG9uIHRoZSBUaGlua3BhZCBYMTNzLCB3aGljaCB3YXMgZHVlIHRvCj4gPiA+IGNv cnJ1cHRpb24gb2YgdGhlIHN1Ym1pc3Npb24gYW5kIGNvbXBsZXRpb24gcXVldWVzLiBUaGlzIHdh cyB0eXBpY2FsbHkKPiA+ID4gb2JzZXJ2ZWQgYXMgY29ycnVwdGlvbiBvZiB0aGUgYWRtaW4gc3Vi bWlzc2lvbiBxdWV1ZSAod2l0aCB3ZWxsLWZvcm1lZAo+ID4gPiBjb21wbGV0aW9uKToKPiA+ID4g Cj4gPiA+IAljb3VsZCBub3QgbG9jYXRlIHJlcXVlc3QgZm9yIHRhZyAweDAKPiA+ID4gCW52bWUg bnZtZTA6IGludmFsaWQgaWQgMCBjb21wbGV0ZWQgb24gcXVldWUgMAo+ID4gPiAKPiA+ID4gb3Ig Y29ycnVwdGlvbiBvZiB0aGUgYWRtaW4gb3IgSS9PIGNvbXBsZXRpb24gcXVldWVzIChtYWxmb3Jt ZWQKPiA+ID4gY29tcGxldGlvbik6Cj4gPiA+IAo+ID4gPiAJY291bGQgbm90IGxvY2F0ZSByZXF1 ZXN0IGZvciB0YWcgMHg0NWYKPiA+ID4gCW52bWUgbnZtZTA6IGludmFsaWQgaWQgMjU2OTUgY29t cGxldGVkIG9uIHF1ZXVlIDI1OTY1Cj4gPiA+IAo+ID4gPiBwcmVzdW1hYmx5IGFzIHRoZXNlIHF1 ZXVlcyBhcmUgc21hbGwgZW5vdWdoIHRvIG5vdCBiZSBhbGxvY2F0ZWQgdXNpbmcKPiA+ID4gQ01B IHdoaWNoIGluIHR1cm4gbWFrZSB0aGVtIG1vcmUgbGlrZWx5IHRvIGJlIGNhY2hlZCAoZS5nLiBk dWUgdG8KPiA+ID4gYWNjZXNzZXMgdG8gbmVhcmJ5IHBhZ2VzIHRocm91Z2ggdGhlIGNhY2hlYWJs ZSBsaW5lYXIgbWFwKS4gSW5jcmVhc2luZwo+ID4gPiB0aGUgYnVmZmVyIHNpemVzIHRvIHR3byBw YWdlcyB0byBmb3JjZSBDTUEgYWxsb2NhdGlvbiBhbHNvIGFwcGVhcnMgdG8KPiA+ID4gbWFrZSB0 aGUgcHJvYmxlbSBnbyBhd2F5Lgo+ID4gPiAKPiA+IAo+ID4gSSBkb24ndCB0aGluayB0aGUgcHJv YmxlbSB3aWxsIGdvIGF3YXkgaWYgdGhlIGFsbG9jYXRpb24gaGFwcGVucyBmcm9tIENNQQo+ID4g cmVnaW9uLiBJdCBtYXkganVzdCBkZWNyZWFzZSB0aGUgY2hhbmNlcyBvZiBjYWNoZSBoaXQgYnV0 IGl0IGNvdWxkIGFsd2F5cwo+ID4gaGFwcGVuIGR1ZSB0byB0aGUgZXhpc3RlbmNlIG9mIGxpbmVh ciBtYXBwaW5nIHdpdGggY2FjaGVhYmxlIGF0dHJpYnV0ZS4KPiAKPiBJIG5ldmVyIGNsYWltZWQg aXQgd291bGQgZml4IHRoZSBwcm9ibGVtLCBJIGV4cGxpY2l0bHkgd3JvdGUgdGhhdCBpdAo+IG1h ZGUgaXQgbGVzcyBsaWtlbHkgdG8gb2NjdXIgKHRvIHRoZSBwb2ludCB3aGVyZSBteSByZXByb2R1 Y2VyIG5vIGxvbmdlcgo+IHRyaWdnZXJzKS4KPiAKCj4gSW5jcmVhc2luZyB0aGUgYnVmZmVyIHNp emVzIHRvIHR3byBwYWdlcyB0byBmb3JjZSBDTUEgYWxsb2NhdGlvbiBhbHNvIGFwcGVhcnMKPiB0 byBtYWtlIHRoZSBwcm9ibGVtIGdvIGF3YXkuCgpUaGUgImdvIGF3YXkiIHBhcnQgc291bmRlZCBs aWtlIGEgY2xhaW0gdG8gbWUgYW5kIGhlbmNlIEkgYWRkZWQgdGhlIHN0YXRlbWVudC4KQnV0IG5v IHdvcnJpZXMgOikKClRoYW5rcywKTWFuaQoKPiBKb2hhbgoKLS0gCuCuruCuo+Cuv+CuteCuo+Cv jeCuo+CuqeCvjSDgrprgrqTgrr7grprgrr/grrXgrq7gr40KCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0 CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFk ZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK