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b=P9HdELJhhcOK5bhsUbkMOury6WbB2zebnKCKQG2KAbUtvi76HksnWxm3/V5V2KMQl H6pU16EteNOTPbC49IeCG0peGkze+i7d2z6+jbNqsKmABWlMJtPtmOZAS1aruzXxDE OB05/iZ4ELrUNserg3658J4p1s7a/M/VmrtdnY6b5edxzLZ1P1fSPoGIh5lFrGhvZ5 +p5VoG2bWJnCEgtaaJWqlHrViq5kohkkTnRr73+eHDoIuv9CA0KdWNGZ1jkF5A0U2K kgmkeRoCk3Qu/nrQulymx74DBiw1QaOJpWTlx14XRFEJTu4Q/J+DzApCQZHrYOM/MH 0A0yvKeOSl1QA== Date: Thu, 10 Aug 2023 15:40:52 +0100 From: Will Deacon To: Michael Shavit Cc: iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, robin.murphy@arm.com, nicolinc@nvidia.com, jgg@nvidia.com, jean-philippe@linaro.org Subject: Re: [PATCH v5 5/9] iommu/arm-smmu-v3: Refactor write_ctx_desc Message-ID: <20230810144051.GD5795@willie-the-truck> References: <20230808171446.2187795-1-mshavit@google.com> <20230809011204.v5.5.I219054a6cf538df5bb22f4ada2d9933155d6058c@changeid> <20230809134959.GB4226@willie-the-truck> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230810_074058_560102_81E90CDA X-CRM114-Status: GOOD ( 22.52 ) 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 T24gVGh1LCBBdWcgMTAsIDIwMjMgYXQgMDU6MTU6NTBQTSArMDgwMCwgTWljaGFlbCBTaGF2aXQg d3JvdGU6Cj4gT24gV2VkLCBBdWcgOSwgMjAyMyBhdCA5OjUw4oCvUE0gV2lsbCBEZWFjb24gPHdp bGxAa2VybmVsLm9yZz4gd3JvdGU6Cj4gPgo+ID4gPiAtICAgICByZXQgPSBhcm1fc21tdV93cml0 ZV9jdHhfZGVzYyhzbW11X2RvbWFpbiwgbW0tPnBhc2lkLCBjZCk7Cj4gPiA+IC0gICAgIGlmIChy ZXQpCj4gPiA+ICsgICAgIHJldCA9IGFybV9zbW11X3dyaXRlX2N0eF9kZXNjX2RldmljZXMoc21t dV9kb21haW4sIG1tLT5wYXNpZCwgY2QpOwo+ID4gPiArICAgICBpZiAocmV0KSB7Cj4gPiA+ICsg ICAgICAgICAgICAgYXJtX3NtbXVfd3JpdGVfY3R4X2Rlc2NfZGV2aWNlcyhzbW11X2RvbWFpbiwg bW0tPnBhc2lkLCBOVUxMKTsKPiA+Cj4gPiBXaHkgaXMgaXQgc2FmZSB0byBkcm9wIHRoZSBsb2Nr IGJldHdlZW4gdGhlc2UgdHdvIGNhbGxzPwo+IAo+IEhtbW0gdGhpcyBpcyBhIHRyaWNreSBxdWVz dGlvbi4KPiBUcmFjaW5nIHRocm91Z2ggdGhlIFNWQSBmbG93LCBpdCBzZWVtcyBsaWtlIHRoZXJl J3MgYSBzY2VuYXJpbyB3aGVyZQo+IG11bHRpcGxlIG1hc3RlcnMgKHdpdGggdGhlIHNhbWUgdXBz dHJlYW0gU01NVSBkZXZpY2UpIGNhbiBiZSBhdHRhY2hlZAo+IHRvIHRoZSBzYW1lIHByaW1hcnkv bm9uLXN2YSBkb21haW4sIGluIHdoaWNoIGNhc2UgY2FsbGluZwo+IGlvbW11X2F0dGFjaF9kZXZp Y2VfcGFzaWQgb24gb25lIGRldmljZSB3aWxsIHdyaXRlIHRoZSBDRCBlbnRyeSBmb3IKPiBib3Ro IG1hc3RlcnMuIFRoaXMgaXMgc3RpbGwgdGhlIGNhc2UgZXZlbiB3aXRoIHRoaXMgcGF0Y2ggc2Vy aWVzLCBhbmQKPiBjaGFuZ2luZyB0aGlzIGJlaGF2aW9yIHdpbGwgYmUgdGhlIHN1YmplY3Qgb2Yg YSBzZXBhcmF0ZSBmb2xsb3ctdXAuCj4gVGhpcyBpcyB3ZWlyZCwgZXNwZWNpYWxseSBzaW5jZSB0 aGUgc2Vjb25kIG1hc3RlciBuZWVkIG5vdCBldmVuIGhhdmUKPiB0aGUgc3ZhX2VuYWJsZWQgYml0 IHNldC4gVGhpcyBhbHNvIG1lYW5zIHRoYXQgdGhlIGxpc3Qgb2YgYXR0YWNoZWQKPiBtYXN0ZXJz IGNhbiBpbmRlZWQgY2hhbmdlIGJldHdlZW4gdGhlc2UgdHdvIGNhbGxzIGlmIHRoYXQgc2Vjb25k Cj4gbWFzdGVyIChub3QgdGhlIG9uZSB1c2VkIG9uIHRoZSBpb21tdV9hdHRhY2hfZGV2aWNlX3Bh c2lkIGNhbGwgbGVhZGluZwo+IHRvIHRoaXMgY29kZSkgaXMgZGV0YWNoZWQvYXR0YWNoZWQgYXQg dGhlIHNhbWUgdGltZS4gSXQncyBoYXJkIGZvciBtZQo+IHRvIHJlYXNvbiBhYm91dCB3aGV0aGVy IHRoaXMgaXMgc2FmZSBvciBub3QsIHNpbmNlIHRoaXMgaXMgYWxyZWFkeQo+IHdlaXJkIGJlaGF2 aW9yLi4uCgpJIHJlYWxseSB0aGluayB0aGUgd3JpdGluZyBvZiB0aGUgY29udGV4dCBkZXNjcmlw dG9ycyBzaG91bGQgbG9vayBhdG9taWM7CmRyb3BwaW5nIHRoZSBsb2NrIGhhbGYgd2F5IHRocm91 Z2ggYSBmYWlsZWQgdXBkYXRlIGFuZCB0aGVuIGNvbWluZyBiYWNrCnRvIE5VTEwgdGhlbSBvdXQg ZGVmaW5pdGVseSBpc24ndCBjb3JyZWN0LiBTbyBJIHRoaW5rIHlvdSd2ZSBwcm9iYWJseSBwdXNo ZWQKdGhlIGxvY2tpbmcgdG9vIGZhciBkb3duIHRoZSBzdGFjay4KCldpbGwKCl9fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFp bGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlz dHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK