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([2001:df0:0:200c:b411:35d2:9458:bbe5]) by smtp.gmail.com with ESMTPSA id c18-20020a621c12000000b0051bbd79fc9csm13969994pfc.57.2022.06.30.12.26.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 30 Jun 2022 12:26:14 -0700 (PDT) Message-ID: <13e45965-4e55-11b1-bfdc-59efaad27464@gmail.com> Date: Fri, 1 Jul 2022 07:26:05 +1200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Subject: Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS Content-Language: en-US To: Christoph Hellwig References: <20220617125750.728590-1-arnd@kernel.org> <20220617125750.728590-4-arnd@kernel.org> <6ba86afe-bf9f-1aca-7af1-d0d348d75ffc@gmail.com> <9289fd82-285c-035f-5355-4d70ce4f87b0@gmail.com> From: Michael Schmitz In-Reply-To: Cc: Linux-Arch , scsi , Michael Ellerman , Geert Uytterhoeven , Jakub Kicinski , Arnd Bergmann , Miquel van Smoorenburg , Denis Efremov , linux-m68k , John Paul Adrian Glaubitz , Khalid Aziz , Arnd Bergmann , Parisc List , Robin Murphy , Matt Wang , Linux Kernel Mailing List , Mark Salyzyn , Linux IOMMU , alpha , linuxppc-dev , "Maciej W . Rozycki" 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-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" SGkgQ2hyaXN0b3BoLAoKT24gMjkvMDYvMjIgMTg6MjUsIENocmlzdG9waCBIZWxsd2lnIHdyb3Rl Ogo+IE9uIFdlZCwgSnVuIDI5LCAyMDIyIGF0IDA5OjM4OjAwQU0gKzEyMDAsIE1pY2hhZWwgU2No bWl0eiB3cm90ZToKPj4gVGhhdCdzIG9uZSBvZiB0aGUgJ2xpYmVydGllcycgSSBhbGx1ZGVkIHRv LiBUaGUgcmVhc29uIEkgbGVmdCB0aGVzZSBpbiBpcwo+PiB0aGF0IEknbSBub25lIHRvbyBjZXJ0 YWluIHdoYXQgZGV2aWNlIGZlYXR1cmUgdGhlIERNQSBBUEkgdXNlcyB0byBkZWNpZGUgYQo+PiBk ZXZpY2UgaXNuJ3QgY2FjaGUtY29oZXJlbnQuCj4gVGhlIERNQSBBUEkgZG9lcyBub3QgbG9vayBh dCBkZXZpY2UgZmVhdHVyZXMgYXQgYWxsLiAgSXQgbmVlZHMgdG8gYmUKPiB0b2xkIHNvIGJ5IHRo ZSBwbGF0Zm9ybSBjb2RlLiAgT25jZSBhbiBhcmNoaXRlY3R1cmUgaW1wbGVtZW50cyB0aGUKPiBo b29rcyB0byBzdXBwb3J0IG5vbi1jb2hlcmVudCBETUEgYWxsIGRldmljZXMgYXJlIHRyZWF0ZWQg YXMKPiBub24tY29oZXJlbnQgYnkgZGVmYXVsdCB1bmxlc3Mgb3ZlcnJpZGVuIGJ5IHRoZSBhcmNo aXRlY3R1cmUgZWl0aGVyCj4gZ2xvYmFsbHkgKHVzaW5nIHRoZSBnbG9iYWwgZG1hX2RlZmF1bHRf Y29oZXJlbnQgdmFyaWFibGUpIG9yIHBlci1kZXZpY2UKPiAodXNpbmcgdGhlIGRldi0+ZG1hX2Nv aGVyZW50IGZpZWxkLCB1c3VhbGx5IHNldCBieSBhcmNoX3NldHVwX2RtYV9vcHMpLgpIYXZlbid0 IGdvdCBhbnkgb2YgdGhhdCwgc28gbm9uLWNvaGVyZW50IERNQSBpcyBhbGwgd2UgY2FuIHVzZSAo ZXZlbiAKdGhvdWdoIHNvbWUgb2YgdGhlIFJBTSB1c2VkIGZvciBib3VuY2UgYnVmZmVycyBtYXkg YWN0dWFsbHkgYmUgY29oZXJlbnQgCmR1ZSB0byB0aGUgcGFnZSB0YWJsZSBjYWNoZSBiaXRzKS4K Pgo+PiBJZiBpdCdzIGRldi0+Y29oZXJlbnRfZG1hX21hc2ssIHRoZSB3YXkgSSBzZXQKPj4gdXAg dGhlIGRldmljZSBpbiB0aGUgYTMwMDAgZHJpdmVyIHNob3VsZCBsZWF2ZSB0aGUgY29oZXJlbnQg bWFzayB1bmNoYW5nZWQuCj4+IEZvciB0aGUgWm9ycm8gZHJpdmVycywgZGV2aWNlcyBhcmUgc2V0 IHVwIHRvIHVzZSB0aGUgc2FtZSBzdG9yYWdlIHRvIHN0b3JlCj4+IG5vcm1hbCBhbmQgY29oZXJl bnQgbWFza3MgLSBzb21ldGhpbmcgd2UgbW9zdCBsaWtlbHkgd2FudCB0byBjaGFuZ2UuIEkgbmVl ZAo+PiB0byB0aGluayBhYm91dCB0aGUgcmFtaWZpY2F0aW9ucyBvZiB0aGF0Lgo+IE5vLCB0aGUg Y29oZXJlbnQgbWFzayBpcyBzbGlnaHRseSBtaXNuYW1lZCBhbWQgbm90IGFjdHVhbGx5IHJlbGF0 ZWQuCgpUaGFua3MsIHRoYXQgaGFkIG1lIGNvbmZ1c2VkLgoKQ2hlZXJzLAoKIMKgwqDCoCBNaWNo YWVsCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KaW9t bXUgbWFpbGluZyBsaXN0CmlvbW11QGxpc3RzLmxpbnV4LWZvdW5kYXRpb24ub3JnCmh0dHBzOi8v bGlzdHMubGludXhmb3VuZGF0aW9uLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2lvbW11