From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Stabellini Subject: Re: [PATCH 4/7] xen/arm: SMMU: Detect types of device tree binding Date: Mon, 3 Jul 2017 15:30:16 -0700 (PDT) Message-ID: References: <1498792511-25149-1-git-send-email-Wei.Chen@arm.com> <1498792511-25149-5-git-send-email-Wei.Chen@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1498792511-25149-5-git-send-email-Wei.Chen@arm.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Wei Chen Cc: sstabellini@kernel.org, steve.capper@arm.com, xen-devel@lists.xen.org, Kaly.Xin@arm.com, julien.grall@arm.com, nd@arm.com List-Id: xen-devel@lists.xenproject.org T24gRnJpLCAzMCBKdW4gMjAxNywgV2VpIENoZW4gd3JvdGU6Cj4gVGhlIGRldmljZSB0cmVlIHBy b3ZpZGVzIHR3byB0eXBlcyBvZiBJT01NVSBiaW5kaW5ncywgb25lIGlzIGxlZ2FjeQo+IGFub3Ro ZXIgaXMgZ2VuZXJpYy4gVGhlIGxlZ2FjeSBiaW5kaW5ncyB3aWxsIGJlIGRlcGVyY2F0ZWQgaW4g ZmF2b3VyCiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg XiBkZXByZWNhdGVkCgo+IG9mIHRoZSBnZW5lcmljIGJpbmRpbmdzLiBCdXQgaW4gdGhlIHRyYW5z aXRpb25hbCBwZXJpb2QsIHdlIGhhdmUgdG8KPiBzdXBwb3J0IGJvdGggb2YgdGhlbS4KPiAKPiBU aGUgY29kZXMgdG8gaGFuZGxlIHRoZXNlIHR3byB0eXBlcyBvZiBiaW5kaW5ncyBhcmUgdmVyeSBk aWZmZXJuZXQsCiAgICAgIF4gY29kZSAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgXiBkaWZmZXJlbnQKClBsZWFzZSB1c2UgYSBzcGVsbGNoZWNrZXIuCgo+IHNv IHdlIGhhdmUgdG8gZGV0ZWN0IHRoZSBiaW5kaW5nIHR5cGVzIHdoaWxlIGRvaW5nIFNNTVUgcHJv YmluZy4KPiAKPiBUaGlzIGRldGVjdCBjb2RlIGlzIGJhc2VkIG9uIExpbnV4IEFSTSBTTU1VdjIg ZHJpdmVyOgo+IGh0dHBzOi8vZ2l0aHViLmNvbS90b3J2YWxkcy9saW51eC9ibG9iL21hc3Rlci9k cml2ZXJzL2lvbW11L2FybS1zbW11LmMKPiAKPiBTaWduZWQtb2ZmLWJ5OiBXZWkgQ2hlbiA8V2Vp LkNoZW5AYXJtLmNvbT4KPiAtLS0KPiAgeGVuL2RyaXZlcnMvcGFzc3Rocm91Z2gvYXJtL3NtbXUu YyB8IDIzICsrKysrKysrKysrKysrKysrKysrKysrCj4gIDEgZmlsZSBjaGFuZ2VkLCAyMyBpbnNl cnRpb25zKCspCj4gCj4gZGlmZiAtLWdpdCBhL3hlbi9kcml2ZXJzL3Bhc3N0aHJvdWdoL2FybS9z bW11LmMgYi94ZW4vZHJpdmVycy9wYXNzdGhyb3VnaC9hcm0vc21tdS5jCj4gaW5kZXggMmVmYTUy ZC4uNDQxYzI5NiAxMDA2NDQKPiAtLS0gYS94ZW4vZHJpdmVycy9wYXNzdGhyb3VnaC9hcm0vc21t dS5jCj4gKysrIGIveGVuL2RyaXZlcnMvcGFzc3Rocm91Z2gvYXJtL3NtbXUuYwo+IEBAIC0xNDMs NiArMTQzLDggQEAgdHlwZWRlZiBlbnVtIGlycXJldHVybiBpcnFyZXR1cm5fdDsKPiAgCj4gICNk ZWZpbmUgZGV2X25hbWUoZGV2KSBkdF9ub2RlX2Z1bGxfbmFtZShkZXZfdG9fZHQoZGV2KSkKPiAg Cj4gKyNkZWZpbmUgcHJfbm90aWNlKGZtdCwgLi4uKSBwcmludGsoWEVOTE9HX0lORk8gZm10LCAj IyBfX1ZBX0FSR1NfXykKPiArCj4gIC8qIEFsaWFzIHRvIFhlbiBhbGxvY2F0aW9uIGhlbHBlcnMg Ki8KPiAgI2RlZmluZSBrZnJlZSB4ZnJlZQo+ICAjZGVmaW5lIGttYWxsb2Moc2l6ZSwgZmxhZ3Mp CQlfeG1hbGxvYyhzaXplLCBzaXplb2Yodm9pZCAqKSkKPiBAQCAtNjgxLDYgKzY4Myw4IEBAIHN0 cnVjdCBhcm1fc21tdV9vcHRpb25fcHJvcCB7Cj4gIAljb25zdCBjaGFyICpwcm9wOwo+ICB9Owo+ ICAKPiArc3RhdGljIGJvb2wgdXNpbmdfbGVnYWN5X2JpbmRpbmcsIHVzaW5nX2dlbmVyaWNfYmlu ZGluZzsKCl9faW5pdGRhdGE/CgpCdXQgd2h5IGRvIHRoZXNlIHR3byB2YXJpYWJsZXMgbmVlZCB0 byBiZSBzdGF0aWM/IENhbid0IHRoZXkganVzdCBiZQpsb2NhbCB2YXJpYWJsZXMgaW4gYXJtX3Nt bXVfZGV2aWNlX2R0X3Byb2JlPwoKSXMgaXQgdG8gZW5mb3JjZSB0aGF0IGFsbCBzbW11cyBvbiBh IGdpdmVuIHBsYXRmb3JtIGFyZSBlaXRoZXIgdXNpbmcgdGhlCmxlZ2FjeSBvciB0aGUgZ2VuZXJp YyBiaW5kaW5ncywgYnV0IG5vdCBhIG1peCBvZiB0aGUgdHdvPyBJZiBzbywgaXQKc2hvdWxkIGJl IGNsZWFybHkgd3JpdHRlbi4gQWxzbywgSSBhbSBub3Qgc3VyZSB3ZSBzaG91bGQgcmVhbGx5IGJl CmNoZWNraW5nIGZvciB0aGF0LiBJdCBzZWVtcyB0byBtZSB0aGF0IG9uZSBzbW11IGNvdWxkIGJl IHVzaW5nIGdlbmVyaWMKYmluZGluZ3MgYW5kIGFub3RoZXIgY291bGQgYmUgdXNpbmcgbGVnYWN5 IGJpbmRpbmdzLiBJcyBpdCBzcGVjaWZpZWQKYW55d2hlcmUgdGhhdCBpdCBjYW5ub3QgYmUgdGhl IGNhc2U/CgoKPiAgc3RhdGljIHN0cnVjdCBhcm1fc21tdV9vcHRpb25fcHJvcCBhcm1fc21tdV9v cHRpb25zW10gPSB7Cj4gIAl7IEFSTV9TTU1VX09QVF9TRUNVUkVfQ0ZHX0FDQ0VTUywgImNhbHhl ZGEsc21tdS1zZWN1cmUtY29uZmlnLWFjY2VzcyIgfSwKPiAgCXsgMCwgTlVMTH0sCj4gQEAgLTIy ODksNiArMjI5MywyNSBAQCBzdGF0aWMgaW50IGFybV9zbW11X2RldmljZV9kdF9wcm9iZShzdHJ1 Y3QgcGxhdGZvcm1fZGV2aWNlICpwZGV2KQo+ICAJc3RydWN0IHJiX25vZGUgKm5vZGU7Cj4gIAlz dHJ1Y3Qgb2ZfcGhhbmRsZV9hcmdzIG1hc3RlcnNwZWM7Cj4gIAlpbnQgbnVtX2lycXMsIGksIGVy cjsKPiArCWJvb2wgbGVnYWN5X2JpbmRpbmc7Cj4gKwo+ICsJLyoKPiArCSAqIFhlbjogRG8gdGhl IHNhbWUgY2hlY2sgYXMgTGludXguIENoZWNraW5nIHRoZSBTTU1VIGRldmljZSB0cmVlIGJpbmRp bmdzCiAgICAgICAgICAgIF4gZG8gICAgICAgICAgICAgICAgICAgICAgICBeIENoZWNrIHRoYXQK Cgo+ICsJICogYXJlIGVpdGhlciB1c2luZyBnZW5lcmljIG9yIGxlZ2FjeSBvbmUuCiAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIF4gYmluZGluZ3MKCj4gKwkgKgo+ICsJ ICogVGhlICJtbXUtbWFzdGVycyIgcHJvcGVydHkgaXMgb25seSBleGlzdGVkIGluIGxlZ2FjeSBi aW5kaW5ncy4KICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIF4gb25seSBleGlzdHMg aW4gdGhlIGxlZ2FjeSBiaW5kaW5ncwoKPiArCSAqLwo+ICsJbGVnYWN5X2JpbmRpbmcgPSBkdF9m aW5kX3Byb3BlcnR5KGRldi0+b2Zfbm9kZSwgIm1tdS1tYXN0ZXJzIiwgTlVMTCk7Cj4gKwlpZiAo bGVnYWN5X2JpbmRpbmcgJiYgIXVzaW5nX2dlbmVyaWNfYmluZGluZykgewo+ICsJCWlmICghdXNp bmdfbGVnYWN5X2JpbmRpbmcpCj4gKwkJCXByX25vdGljZSgiZGVwcmVjYXRlZCBcIm1tdS1tYXN0 ZXJzXCIgRFQgcHJvcGVydHkgaW4gdXNlXG4iKTsKPiArCQl1c2luZ19sZWdhY3lfYmluZGluZyA9 IHRydWU7Cj4gKwl9IGVsc2UgaWYgKCFsZWdhY3lfYmluZGluZyAmJiAhdXNpbmdfbGVnYWN5X2Jp bmRpbmcpIHsKPiArCQl1c2luZ19nZW5lcmljX2JpbmRpbmcgPSB0cnVlOwoKUGxlYXNlIHNpbXBs aWZ5IHRoaXMgc2VyaWVzIG9mIGlmL2Vsc2UuCgoKPiArCX0gZWxzZSB7Cj4gKwkJZGV2X2Vycihk ZXYsICJub3QgcHJvYmluZyBkdWUgdG8gbWlzbWF0Y2hlZCBEVCBwcm9wZXJ0aWVzXG4iKTsKPiAr CQlyZXR1cm4gLUVOT0RFVjsKPiArCX0KCgoKCj4gIAlzbW11ID0gZGV2bV9remFsbG9jKGRldiwg c2l6ZW9mKCpzbW11KSwgR0ZQX0tFUk5FTCk7Cj4gIAlpZiAoIXNtbXUpIHsKPiAtLSAKPiAyLjcu NAo+IAo+IAo+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f Cj4gWGVuLWRldmVsIG1haWxpbmcgbGlzdAo+IFhlbi1kZXZlbEBsaXN0cy54ZW4ub3JnCj4gaHR0 cHM6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo+IAoKX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxA bGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==