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Wed, 06 Aug 2025 21:36:10 +0200 From: Heiko =?UTF-8?B?U3TDvGJuZXI=?= To: Niklas Cassel , Robin Murphy Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Damien Le Moal , Sebastian Reichel , Niklas Cassel , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org Subject: Re: [PATCH] arm64: dts: rockchip: enable the mmu600_pcie IOMMU on the rk3588 SoC Date: Wed, 06 Aug 2025 21:36:10 +0200 Message-ID: <4400329.mogB4TqSGs@diego> In-Reply-To: <20241107123732.1160063-2-cassel@kernel.org> References: <20241107123732.1160063-2-cassel@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250806_123626_149658_CF640285 X-CRM114-Status: GOOD ( 28.57 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org SGkgTmlrbGFzLAoKQW0gRG9ubmVyc3RhZywgNy4gTm92ZW1iZXIgMjAyNCwgMTM6Mzc6MzMgTWl0 dGVsZXVyb3DDpGlzY2hlIFNvbW1lcnplaXQgc2NocmllYiBOaWtsYXMgQ2Fzc2VsOgo+IENvbW1p dCBjZDgxZDNhMDY5NWMgKCJhcm02NDogZHRzOiByb2NrY2hpcDogYWRkIHJrMzU4OCBwY2llIGFu ZCBwaHAKPiBJT01NVXMiKSBhZGRlZCB0aGUgcmszNTg4IFNvQydzIHBjaWUgSU9NTVUgYW5kIHBo cCBJT01NVSBhcyBkaXNhYmxlZC4KPiAKPiBUaGUgbW11NjAwX3BjaWUgaXMgY29ubmVjdGVkIHdp dGggdGhlIGZpdmUgUENJZSBjb250cm9sbGVycy4KPiBTZWUgOC4yIEJsb2NrIERpYWdyYW0sIGlu IHJrMzU4OCBUUk0gKFRlY2huaWNhbCBSZWZlcmVuY2UgTWFudWFsKS4KPiAKPiBUaGUgZml2ZSBQ Q0llIGNvbnRyb2xsZXJzIGFyZToKPiBwY2llM3g0LCBwY2llM3gyLCBwY2llMngxbDAsIHBjaWUy eDFsMSwgcGNpZTJ4MWwyLgo+IAo+IHBjaWUzeDQgY2FuIHJ1biBpbiBlaXRoZXIgUm9vdCBDb21w bGV4IG1vZGUgb3IgRW5kcG9pbnQgbW9kZSwgdGhlIG90aGVyCj4gZm91ciBQQ0llIGNvbnRyb2xs ZXJzIGNhbiBvbmx5IHJ1biBpbiBSb290IENvbXBsZXggbW9kZS4gVG8gZGVzY3JpYmUgdGhpcwo+ IHdlIHRodXMgaGF2ZSBzaXggZGlmZmVyZW50IGRldmljZSBub2RlcyBpbiB0aGUgZGV2aWNlIHRy ZWUuCj4gCj4gQSBQQ0llIGNvbnRyb2xsZXIgaW4gUm9vdCBDb21wbGV4IG1vZGUgbmVlZHMgdG8g c3BlY2lmeSBhbiBpb21tdS1tYXAsIHN1Y2gKPiB0aGF0IHRoZSBkZXZpY2Uga25vd3MgaG93IHRv IGNvbnZlcnQgYSBSZXF1ZXN0ZXIgSUQgKFBDSSBCREYpIHRvIGFuIElPTU1VCj4gbWFzdGVyIElE IChzdHJlYW0gSUQpLiAoQSBQQ0llIGNvbnRyb2xsZXIgaW4gRW5kcG9pbnQgbW9kZSBzaG91bGQg dXNlIHRoZQo+IGlvbW11cyBwcm9wZXJ0eSwganVzdCBsaWtlIGEgcmVndWxhciBkZXZpY2UuKQo+ IAo+IElmIHlvdSBsb29rIGF0IHRoZSBkZXZpY2UgdHJlZSBiaW5kaW5ncyBmb3IgbXNpLW1hcCBh bmQgaW9tbXUtbWFwLCB5b3UgY2FuCj4gc2VlIHRoYXQgdGhlIGNvbnZlcnNpb24gZnJvbSBSZXF1 ZXN0ZXIgSUQgdG8gTVNJLXNwZWNpZmllciBkYXRhIGlzIHRoZSBzYW1lCj4gYXMgdGhlIGNvbnZl cnNpb24gZnJvbSBSZXF1ZXN0ZXIgSUQgdG8gSU9NTVUgc3BlY2lmaWVyIGRhdGEuIFRodXMgaXQg aXMKPiBzZW5zaWJsZSB0byBkZWZpbmUgdGhlIGlvbW11LW1hcCBwcm9wZXJ0eSB2YWx1ZSBzaW1p bGFyIHRvIHRoZSBtc2ktbWFwLAo+IHN1Y2ggdGhhdCB0aGUgY29udmVyc2lvbiB3aWxsIGJlIGlk ZW50aWNhbC4KPiAKPiBBZGQgdGhlIHByb3BlciBpb21tdSBkZXZpY2UgdHJlZSBwcm9wZXJ0aWVz IGZvciB0aGVzZSBzaXggZGV2aWNlIG5vZGVzCj4gY29ubmVjdGVkIHRvIHRoZSBtbXU2MDBfcGNp ZSwgc28gdGhhdCB3ZSBjYW4gZW5hYmxlIHRoZSBtbXU2MDBfcGNpZSBJT01NVS4KPiAoVGhlIG1t dTYwMF9waHAgSU9NTVUgaXMgbm90IHRvdWNoZWQsIHNvIGl0IGlzIHN0aWxsIGRpc2FibGVkLikK PiAKPiBTaWduZWQtb2ZmLWJ5OiBOaWtsYXMgQ2Fzc2VsIDxjYXNzZWxAa2VybmVsLm9yZz4KCkkn dmUgcnVuIGludG8gYSBiaXQgb2YgYSBwcm9ibGVtIHdpdGggdGhpcyBwYXRjaCBhbmQgdjYuMTYg dG9kYXkgOi0oIC4KCkl0IHNlZW1zIHRoZSBTTU1VIGN1cnJlbnRseSBkb2VzIG5vdCBwbGF5IHdl bGwsIGlmIGhhcyBubyB1c2Vycy4gV2l0aAp0aGlzIHBhdGNoIHRoZSBwY2llIHNtbXUgaXMgYWx3 YXlzIHByb2JlZCwgZXZlbiBpZiBub3RoaW5nIGlzIHVzaW5nIGl0Lgoob3IgaW4gZmFjdCB0aGUg UENJZSBjb250cm9sbGVyIGRyaXZlciBkZWZlcnMgcHJvYmluZyBmb3Igd2hhdGV2ZXIgcmVhc29u KS4KCkJ1dCBpbiBhbGwgY2FzZXMgdGhlIFNNTVUncyBzaHV0ZG93biBjYWxsYmFjayB3aWxsIGJl IGNhbGxlZCB3aGVuIG5lZWRlZC4KClNvIHRlc3QtY2FzZToKLSBwcm9iZSBwY2llLXNtbXUsIGJ1 dCBkbyBub3QgcHJvYmUgUENJZSAuLi4gaGl0IHJlYm9vdAogIFRoZSBzbW11IHNodXRkb3duIGZ1 bmN0aW9uIHdpbGwgaGFuZyBmb3IgYSBiaXQsIGFuZCBhdCBsZWFzdCBteSB0d28KICB0ZXN0IGJv YXJkcyAgZGlkIHJlYm9vdCBhZnRlciBoYW5naW5nIGFib3V0IDMwIHNlY29uZHMKICAoSSBkaWQg dHJhY2UgdGhhdCBkb3duIHRvIHRoZSBhcm1fc21tdV9zaHV0ZG93biBmdW5jdGlvbikKLSBwcm9i ZSBwY2llLXNtbXUgYW5kIHByb2JlIFBDSWUgLSBjcmVhdGluZyBhIHVzZXIgZm9yIHRoZSBzbW11 CiAgUmVib290IGhhcHBlbnMgd2l0aG91dCBoYW5nL2RlbGF5CgpMaWtlbHkgdGhlIFNNTVUgaXMg bWlzc2luZyBlaXRoZXIgYSBjbG9jayBvciBpdHMgcG93ZXItZG9tYWluLgoKSnVzdCBhZGRpbmcg dGhlIHBvd2VyLWRvbWFpbiB0byB0aGUgbm9kZSwgZGlkIGtlZXAgdGhlIGRvbWFpbiBvbiwgYnV0 CmRpZCBub3Qgc29sdmUgdGhlIGhhbmcgZm9yIG1lLgoKU3RyYW5nZWx5IGVub3VnaCwgYWRkaXRp b25hbGx5IGZvcmNpbmcgYWxsIGNsb2NrcyB0byBzdGF5IHBlcm1hbmVudGx5IG9uLAphbHNvIGRp ZG4ndCBoZWxwIChvciBJIG1lc3NlZCB1cCBzb21ld2hlcmUpIC4KSSdtIG5vdCBzdXJlIGlmIHRo ZSBQQ0llIGNvbnRyb2xsZXIgZG9lcyBjYXVzZSB0aGUgU01NVSB0byBkbyBzb21lIG1vcmUKaW5p dGlhbGl6YXRpb24sIHRoYXQgd291bGQgYmUgbWlzc2luZyBvdGhlcndpc2UuCgoKUm9iaW4gZGlk IHBvaW50IG91dCB0aGF0IHRoZXJlIGlzIG9uZ29pbmcgcnVudGltZS1wbSB3b3JrIGZvciB0aGUK U01NVSBbMF0sIGJ1dCBqdXN0IGFkZGluZyB0aGUgcG93ZXItZG9tYWluIGRvZXMga2VlcCBpdCBv biwgc28gdGhpcyBpcwpsaWtlbHkgbm90IHJlbGF0ZWQuCgoKQXMgeW91IGhhdmUgc3BlbnQgc28g bXVjaCB0aW1lIG9uIFBDSWUgdG9waWNzLCBtYXliZSB5b3UgaGF2ZSBhIGJldHRlcgppZGVhIG9m IHdoYXQgdG8gcG9rZSA6LSkKCgpIZWlrbwoKClswXSBodHRwczovL2xvcmUua2VybmVsLm9yZy9s aW51eC1pb21tdS8yMDI1MDYxNjIwMzE0OS4yNjQ5MTE4LTEtcHJhYW5AZ29vZ2xlLmNvbS8KCgoK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTGludXgtcm9j a2NoaXAgbWFpbGluZyBsaXN0CkxpbnV4LXJvY2tjaGlwQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0 cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1yb2NrY2hpcAo=