From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Osipenko Subject: Re: [PATCH v3 06/16] gpu: host1x: Restrict IOVA space to DMA mask Date: Fri, 1 Feb 2019 17:47:05 +0300 Message-ID: References: <20190201132837.12327-1-thierry.reding@gmail.com> <20190201132837.12327-7-thierry.reding@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-pg1-x543.google.com (mail-pg1-x543.google.com [IPv6:2607:f8b0:4864:20::543]) by gabe.freedesktop.org (Postfix) with ESMTPS id 322006E28C for ; Fri, 1 Feb 2019 14:47:13 +0000 (UTC) Received: by mail-pg1-x543.google.com with SMTP id m1so3033812pgq.8 for ; Fri, 01 Feb 2019 06:47:13 -0800 (PST) In-Reply-To: <20190201132837.12327-7-thierry.reding@gmail.com> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Thierry Reding Cc: linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org, Mikko Perttunen List-Id: dri-devel@lists.freedesktop.org MDEuMDIuMjAxOSAxNjoyOCwgVGhpZXJyeSBSZWRpbmcg0L/QuNGI0LXRgjoKPiBGcm9tOiBUaGll cnJ5IFJlZGluZyA8dHJlZGluZ0BudmlkaWEuY29tPgo+IAo+IE9uIFRlZ3JhMTg2IGFuZCBsYXRl ciwgdGhlIEFSTSBTTU1VIHByb3ZpZGVzIGFuIGlucHV0IGFkZHJlc3Mgc3BhY2UgdGhhdAo+IGlz IDQ4IGJpdHMgd2lkZS4gSG93ZXZlciwgbWVtb3J5IGNsaWVudHMgY2FuIG9ubHkgYWRkcmVzcyB1 cCB0byA0MCBiaXRzLgo+IElmIHRoZSBnZW9tZXRyeSBpcyB1c2VkIGFzLWlzLCBhbGxvY2F0aW9u cyBvZiBJT1ZBIHNwYWNlIGNhbiBlbmQgdXAgaW4gYQo+IHJlZ2lvbiB0aGF0IGlzIG5vdCBhZGRy ZXNzYWJsZSBieSB0aGUgbWVtb3J5IGNsaWVudHMuCj4gCj4gVG8gZml4IHRoaXMsIHJlc3RyaWN0 IHRoZSBJT1ZBIHNwYWNlIHRvIHRoZSBETUEgbWFzayBvZiB0aGUgaG9zdDF4Cj4gZGV2aWNlLgo+ IAo+IFNpZ25lZC1vZmYtYnk6IFRoaWVycnkgUmVkaW5nIDx0cmVkaW5nQG52aWRpYS5jb20+Cj4g LS0tCj4gIGRyaXZlcnMvZ3B1L2hvc3QxeC9kZXYuYyB8IDkgKysrKysrLS0tCj4gIDEgZmlsZSBj aGFuZ2VkLCA2IGluc2VydGlvbnMoKyksIDMgZGVsZXRpb25zKC0pCj4gCj4gZGlmZiAtLWdpdCBh L2RyaXZlcnMvZ3B1L2hvc3QxeC9kZXYuYyBiL2RyaXZlcnMvZ3B1L2hvc3QxeC9kZXYuYwo+IGlu ZGV4IDRjMDQ0ZWU1NGZlNi4uNTQ0YjY3ZjJiM2ZmIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1 L2hvc3QxeC9kZXYuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2hvc3QxeC9kZXYuYwo+IEBAIC0yODMs NiArMjgzLDggQEAgc3RhdGljIGludCBob3N0MXhfcHJvYmUoc3RydWN0IHBsYXRmb3JtX2Rldmlj ZSAqcGRldikKPiAgCWhvc3QtPmdyb3VwID0gaW9tbXVfZ3JvdXBfZ2V0KCZwZGV2LT5kZXYpOwo+ ICAJaWYgKGhvc3QtPmdyb3VwKSB7Cj4gIAkJc3RydWN0IGlvbW11X2RvbWFpbl9nZW9tZXRyeSAq Z2VvbWV0cnk7Cj4gKwkJdTY0IG1hc2sgPSBkbWFfZ2V0X21hc2soaG9zdC0+ZGV2KTsKPiArCQlk bWFfYWRkcl90IHN0YXJ0LCBlbmQ7Cj4gIAkJdW5zaWduZWQgbG9uZyBvcmRlcjsKPiAgCj4gIAkJ ZXJyID0gaW92YV9jYWNoZV9nZXQoKTsKPiBAQCAtMzEwLDExICszMTIsMTIgQEAgc3RhdGljIGlu dCBob3N0MXhfcHJvYmUoc3RydWN0IHBsYXRmb3JtX2RldmljZSAqcGRldikKPiAgCQl9Cj4gIAo+ ICAJCWdlb21ldHJ5ID0gJmhvc3QtPmRvbWFpbi0+Z2VvbWV0cnk7Cj4gKwkJc3RhcnQgPSBnZW9t ZXRyeS0+YXBlcnR1cmVfc3RhcnQgJiBtYXNrOwo+ICsJCWVuZCA9IGdlb21ldHJ5LT5hcGVydHVy ZV9lbmQgJiBtYXNrOwo+ICAKPiAgCQlvcmRlciA9IF9fZmZzKGhvc3QtPmRvbWFpbi0+cGdzaXpl X2JpdG1hcCk7Cj4gLQkJaW5pdF9pb3ZhX2RvbWFpbigmaG9zdC0+aW92YSwgMVVMIDw8IG9yZGVy LAo+IC0JCQkJIGdlb21ldHJ5LT5hcGVydHVyZV9zdGFydCA+PiBvcmRlcik7Cj4gLQkJaG9zdC0+ aW92YV9lbmQgPSBnZW9tZXRyeS0+YXBlcnR1cmVfZW5kOwo+ICsJCWluaXRfaW92YV9kb21haW4o Jmhvc3QtPmlvdmEsIDFVTCA8PCBvcmRlciwgc3RhcnQgPj4gb3JkZXIpOwo+ICsJCWhvc3QtPmlv dmFfZW5kID0gZW5kOwo+ICAJfQo+ICAKPiAgc2tpcF9pb21tdToKPiAKCkZvciBvbGRlciBUZWdy YSdzOgoKUmV2aWV3ZWQtYnk6IERtaXRyeSBPc2lwZW5rbyA8ZGlnZXR4QGdtYWlsLmNvbT4KVGVz dGVkLWJ5OiBEbWl0cnkgT3NpcGVua28gPGRpZ2V0eEBnbWFpbC5jb20+Cl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QK ZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9w Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo=