From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robin Murphy Subject: Re: [PATCH] drm/panfrost: Add AArch64 page table format support Date: Wed, 29 May 2019 14:00:17 +0100 Message-ID: References: <20190513144012.17243-1-robh@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from foss.arm.com (foss.arm.com [217.140.101.70]) by gabe.freedesktop.org (Postfix) with ESMTP id 6ABE86E103 for ; Wed, 29 May 2019 13:00:20 +0000 (UTC) In-Reply-To: Content-Language: en-GB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Tomeu Vizoso , Rob Herring Cc: Steven Price , dri-devel , Neil Armstrong List-Id: dri-devel@lists.freedesktop.org SGkgVG9tZXUsIFJvYiwKCk9uIDI4LzA1LzIwMTkgMDg6MDMsIFRvbWV1IFZpem9zbyB3cm90ZToK PiBSb2JpbiwgU3RldmVuLAo+IAo+IHdvdWxkIHlvdSBvciBzb21lb25lIGVsc2UgYXQgQXJtIGJl IGFibGUgdG8gcnVuIHRoZSBJR1QgdGVzdHMgWzBdIG9uCj4gNS4yLXJjMiB3aXRoIHRoaXMgcGF0 Y2ggb24gdG9wPwo+IAo+IEkgZG9uJ3QgaGF2ZSBhbnkgaHcgd2l0aCBCaWZyb3N0IGFuZCBhbSBu b3QgcGxhbm5pbmcgdG8gd29yayBvbiB0aGUKPiB1c2Vyc3BhY2UgYW55IHRpbWUgc29vbiwgYnV0 IEkgdGhpbmsgaXQgd291bGQgYmUgZ29vZCB0byBhdCBsZWFzdAo+IGNoZWNrIHRoYXQgdGhlIGtl cm5lbCBkb2Vzbid0IGhhdmUgYW55IG9idmlvdXMgYnVncy4KCkkndmUgbWFuYWdlZCB0byBjb2Ji bGUgc29tZXRoaW5nIHRvZ2V0aGVyIHdoaWNoIGFwcGVhcnMgdG8gc29ydC1vZi13b3JrLCAKYWx0 aG91Z2ggSSBkb24ndCBoYXZlIHRoZSBrbm93bGVkZ2UsIHRpbWUgb3IgcGF0aWVuY2UgdG8gZGl2 ZSBkb3duIHRoZSAKcmFiYml0LWhvbGUgb2YgZ2V0dGluZyBhIHdvcmtpbmcgQXJtIERESyBkcml2 ZXIgdG8gYWN0dWFsbHkgcHJvdmUgdGhlIApzZXR1cC4gVGhlIGltbWVkaWF0ZSBvYnNlcnZhdGlv biBpcyB0aGF0IEkgZ2V0IGEgbG90IG9mIHRoaXM6CgpbICAzMDUuNjAyMDAxXSBwYW5mcm9zdCA2 ZTAwMDAwMC5ncHU6IGVycm9yIHBvd2VyaW5nIHVwIGdwdQoKV2hpY2ggYXBwZWFycyB0byBzdGVt IGZyb20gdGhlIHBva2luZyBvZiBTVEFDS19QV1JPTl9MTy4gSnVkZ2luZyBieSAKQ09ORklHX01B TElfQ09SRVNUQUNLIGluIGtiYXNlLCBtYXliZSB3ZSBzaG91bGRuJ3QgYWx3YXlzIGJlIGdvaW5n IHRoZXJlIAphbnl3YXkgKFN0ZXZlIHByb2JhYmx5IGtub3dzIG1vcmUsIGJ1dCBpcyBhd2F5IGZv ciBhIGZldyB3ZWVrcyBBVE0pLgoKSSBjYW4ndCBtYWtlIG11Y2ggc2Vuc2Ugb2YgdGhlIElHVCBv dXRwdXQsIGJ1dCB0cnlpbmcgCiJzY3JpcHRzL3J1bi10ZXN0cy5zaCAtdCBwYW5mcm9zdCIgKGJl Y2F1c2UgSSBhbHNvIGRvbid0IGhhdmUgdGhlIApwYXRpZW5jZSB0byB3YXRjaCBpdCBza2lwIHRo cm91Z2ggYWxsIH42MywwMDAgdGVzdHMuLi4pIHNlZW1zIHByZXR0eSAKbXVjaCBjb25zaXN0ZW50 IHdpdGggb3Igd2l0aG91dCB0aGlzIHBhdGNoLiBTYW1lIGZvciB0cnlpbmcga21zY3ViZSB3aXRo IAptZXNhL21hc3RlcjsgdGhhdCBwcm9kdWNlcyBsb3RzIG9mIGpvYiBlcnJvcnM6CgpbICAgNDIu NDA5NTY4XSBwYW5mcm9zdCA2ZTAwMDAwMC5ncHU6IGpzIGZhdWx0LCBqcz0wLCAKc3RhdHVzPURB VEFfSU5WQUxJRF9GQVVMVCwgaGVhZD0weDI0MDBiMDAsIHRhaWw9MHgyNDAwYjAwClsgICA0Mi40 MTkzODBdIHBhbmZyb3N0IDZlMDAwMDAwLmdwdTogZ3B1IHNjaGVkIHRpbWVvdXQsIGpzPTAsIApz dGF0dXM9MHg1OCwgaGVhZD0weDI0MDBiMDAsIHRhaWw9MHgyNDAwYjAwLCBzY2hlZF9qb2I9MDAw MDAwMDBkMTdiOTEKCnJhdGhlciB0aGFuIE1NVSBmYXVsdHMgZWl0aGVyIHdheSwgc28gYXQgbGVh c3QgdGhpcyBjaGFuZ2UgZG9lc24ndCBzZWVtIAp0byBwcmVzZW50IGFueSBzaWduaWZpY2FudCBy ZWdyZXNzaW9uLiBJdCBsb29rcyBsaWtlIHdpdGhvdXQgdGhpcyBwYXRjaCAKd2UgZW5kIHVwIHVz aW5nIEFTX1RSQU5TQ0ZHX0FEUk1PREVfTEVHQUNZLCB3aGljaCBwcmVzdW1hYmx5IG1lYW5zIApl eGFjdGx5IHdoYXQgaXQgc291bmRzIGxpa2UsIGFsdGhvdWdoIHdoZXRoZXIgdGhhdCdzIHN1ZmZp Y2llbnRseSAKcmVsaWFibGUgSSBkb24ndCBrbm93OyB0aG9zZSBraW5kcyBvZiBiYWNrd2FyZHMt Y29tcGF0aWJpbGl0eSBmZWF0dXJlcyAKZG8gaGF2ZSBhIGhhYml0IG9mIGV2ZW50dWFsbHkgZGlz YXBwZWFyaW5nLCBhbmQgd2hhdCBJJ3ZlIHRyaWVkIHNvIGZhciAKaXMgY2VydGFpbmx5IG5vdCB0 aGUgbGF0ZXN0IGFuZCBncmVhdGVzdC4KClJvYmluLgoKPiBbMF0gaHR0cHM6Ly9naXRsYWIuZnJl ZWRlc2t0b3Aub3JnL2RybS9pZ3QtZ3B1LXRvb2xzL2Jsb2IvbWFzdGVyL3Rlc3RzL3BhbmZyb3N0 X3N1Ym1pdC5jCj4gCj4gVGhhbmtzLAo+IAo+IFRvbWV1Cj4gCj4gT24gV2VkLCAxNSBNYXkgMjAx OSBhdCAxMDoxMSwgUm9iIEhlcnJpbmcgPHJvYmhAa2VybmVsLm9yZz4gd3JvdGU6Cj4+Cj4+IEJp ZnJvc3QgR1BVcyB1c2UgdGhlIHN0YW5kYXJkIGZvcm1hdCBzdGFnZSAxIExQQUUgcGFnZSB0YWJs ZXMgbWF0Y2hpbmcKPj4gdGhlIGlvLXBndGFibGUgQVJNXzY0X0xQQUVfUzEgZm9ybWF0LiBUaGUg b25lIGRpZmZlcmVuY2UgaXMgdGhlIFRDUiBvcgo+PiBUUkFOU0NGRyByZWdpc3RlciBhcyB0aGUg TWFsaSBkcml2ZXIgY2FsbHMgaXQgaGFzIGl0cyBvd24gY3VzdG9tIGxheW91dC4KPj4KPj4gU2ln bmVkLW9mZi1ieTogUm9iIEhlcnJpbmcgPHJvYmhAa2VybmVsLm9yZz4KPj4gLS0tCj4+IFRoaXMg YW5kIGNvbXBhdGlibGUgc3RyaW5ncyBzaG91bGQgYmUgZW5vdWdoIGZvciBlbmFibGluZyBiaWZy b3N0Lgo+PiBUaGVyZSdzIHNvbWUgb3RoZXIgZmVhdHVyZSBhbmQgaXNzdWUgZGlmZmVyZW5jZXMs IGJ1dCBJIHRoaW5rIHRoZXkgYWxsCj4+IGVpdGhlciBkb24ndCBtYXR0ZXIgKGJlY2F1c2Ugb2Yg ZGlmZmVyZW5jZXMgaW4gcGFuZnJvc3QpIG9yIEkndmUgYWxyZWFkeQo+PiBoYW5kbGVkIHRoZW0u Cj4+Cj4+IFRoaXMgaXMgb25seSBjb21waWxlIHRlc3RlZCBhcyBJIGRvbid0IGhhdmUgaC93LiBS dW5uaW5nIHRoZSBleGlzdGluZwo+PiBJR1QgdGVzdHMgbWF5IGJlIHN1ZmZpY2llbnQgdG8gdGVz dCB0aGlzLiBXZSBzaG91bGQgZ2V0IGFuIGVycm9yIHdpdGgKPj4gdGhlIGNvbW1hbmQgc3RyZWFt IHJhdGhlciB0aGFuIGEgTU1VIGZhdWx0IGlmIHRoaXMgaXMgd29ya2luZyBjb3JyZWN0bHkuCj4+ Cj4+IFJvYgo+Pgo+PiAgIGRyaXZlcnMvZ3B1L2RybS9wYW5mcm9zdC9wYW5mcm9zdF9tbXUuYyAg fCAyOCArKysrKysrKysrKysrKysrKysrKysrKy0KPj4gICBkcml2ZXJzL2dwdS9kcm0vcGFuZnJv c3QvcGFuZnJvc3RfcmVncy5oIHwgIDMgKysrCj4+ICAgMiBmaWxlcyBjaGFuZ2VkLCAzMCBpbnNl cnRpb25zKCspLCAxIGRlbGV0aW9uKC0pCj4+Cj4+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9k cm0vcGFuZnJvc3QvcGFuZnJvc3RfbW11LmMgYi9kcml2ZXJzL2dwdS9kcm0vcGFuZnJvc3QvcGFu ZnJvc3RfbW11LmMKPj4gaW5kZXggNzYyYjFiZDJhOGMyLi40MWQxODRmYWIwN2YgMTAwNjQ0Cj4+ IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9wYW5mcm9zdC9wYW5mcm9zdF9tbXUuYwo+PiArKysgYi9k cml2ZXJzL2dwdS9kcm0vcGFuZnJvc3QvcGFuZnJvc3RfbW11LmMKPj4gQEAgLTEsNSArMSw2IEBA Cj4+ICAgLy8gU1BEWC1MaWNlbnNlLUlkZW50aWZpZXI6ICAgIEdQTC0yLjAKPj4gICAvKiBDb3B5 cmlnaHQgMjAxOSBMaW5hcm8sIEx0ZCwgUm9iIEhlcnJpbmcgPHJvYmhAa2VybmVsLm9yZz4gKi8K Pj4gKy8qIENvcHlyaWdodCAoQykgMjAxOSBBcm0gTHRkLiAqLwo+PiAgICNpbmNsdWRlIDxsaW51 eC9iaXRmaWVsZC5oPgo+PiAgICNpbmNsdWRlIDxsaW51eC9kZWxheS5oPgo+PiAgICNpbmNsdWRl IDxsaW51eC9pbnRlcnJ1cHQuaD4KPj4gQEAgLTExMSw2ICsxMTIsMTQgQEAgdm9pZCBwYW5mcm9z dF9tbXVfZW5hYmxlKHN0cnVjdCBwYW5mcm9zdF9kZXZpY2UgKnBmZGV2LCB1MzIgYXNfbnIpCj4+ ICAgICAgICAgIHU2NCB0cmFuc3RhYiA9IGNmZy0+YXJtX21hbGlfbHBhZV9jZmcudHJhbnN0YWI7 Cj4+ICAgICAgICAgIHU2NCBtZW1hdHRyID0gY2ZnLT5hcm1fbWFsaV9scGFlX2NmZy5tZW1hdHRy Owo+Pgo+PiArICAgICAgIGlmIChwYW5mcm9zdF9oYXNfaHdfZmVhdHVyZShwZmRldiwgSFdfRkVB VFVSRV9BQVJDSDY0X01NVSkpIHsKPj4gKyAgICAgICAgICAgICAgIHRyYW5zdGFiID0gY2ZnLT5h cm1fbHBhZV9zMV9jZmcudHRiclswXTsKPj4gKyAgICAgICAgICAgICAgIG1lbWF0dHIgPSBjZmct PmFybV9scGFlX3MxX2NmZy5tYWlyWzBdOwo+PiArICAgICAgIH0gZWxzZSB7Cj4+ICsgICAgICAg ICAgICAgICB0cmFuc3RhYiA9IGNmZy0+YXJtX21hbGlfbHBhZV9jZmcudHJhbnN0YWI7Cj4+ICsg ICAgICAgICAgICAgICBtZW1hdHRyID0gY2ZnLT5hcm1fbWFsaV9scGFlX2NmZy5tZW1hdHRyOwo+ PiArICAgICAgIH0KPj4gKwo+PiAgICAgICAgICBtbXVfd3JpdGUocGZkZXYsIE1NVV9JTlRfQ0xF QVIsIH4wKTsKPj4gICAgICAgICAgbW11X3dyaXRlKHBmZGV2LCBNTVVfSU5UX01BU0ssIH4wKTsK Pj4KPj4gQEAgLTEyMyw2ICsxMzIsMTQgQEAgdm9pZCBwYW5mcm9zdF9tbXVfZW5hYmxlKHN0cnVj dCBwYW5mcm9zdF9kZXZpY2UgKnBmZGV2LCB1MzIgYXNfbnIpCj4+ICAgICAgICAgIG1tdV93cml0 ZShwZmRldiwgQVNfTUVNQVRUUl9MTyhhc19uciksIG1lbWF0dHIgJiAweGZmZmZmZmZmVUwpOwo+ PiAgICAgICAgICBtbXVfd3JpdGUocGZkZXYsIEFTX01FTUFUVFJfSEkoYXNfbnIpLCBtZW1hdHRy ID4+IDMyKTsKPj4KPj4gKyAgICAgICBpZiAocGFuZnJvc3RfaGFzX2h3X2ZlYXR1cmUocGZkZXYs IEhXX0ZFQVRVUkVfQUFSQ0g2NF9NTVUpKSB7Cj4+ICsgICAgICAgICAgICAgICAvKiBUT0RPOiBo YW5kbGUgc3lzdGVtIGNvaGVyZW5jeSAqLwo+PiArICAgICAgICAgICAgICAgbW11X3dyaXRlKHBm ZGV2LCBBU19UUkFOU0NGR19MTyhhc19uciksCj4+ICsgICAgICAgICAgICAgICAgICAgICAgIEFT X1RSQU5TQ0ZHX1BUV19NRU1BVFRSX1dSSVRFX0JBQ0sgfAo+PiArICAgICAgICAgICAgICAgICAg ICAgICBBU19UUkFOU0NGR19BRFJNT0RFX0FBUkNINjRfNEspOwo+PiArICAgICAgICAgICAgICAg bW11X3dyaXRlKHBmZGV2LCBBU19UUkFOU0NGR19ISShhc19uciksIDApOwo+PiArICAgICAgIH0K Pj4gKwo+PiAgICAgICAgICB3cml0ZV9jbWQocGZkZXYsIGFzX25yLCBBU19DT01NQU5EX1VQREFU RSk7Cj4+ICAgfQo+Pgo+PiBAQCAtMTM0LDYgKzE1MSwxMSBAQCBzdGF0aWMgdm9pZCBtbXVfZGlz YWJsZShzdHJ1Y3QgcGFuZnJvc3RfZGV2aWNlICpwZmRldiwgdTMyIGFzX25yKQo+PiAgICAgICAg ICBtbXVfd3JpdGUocGZkZXYsIEFTX01FTUFUVFJfTE8oYXNfbnIpLCAwKTsKPj4gICAgICAgICAg bW11X3dyaXRlKHBmZGV2LCBBU19NRU1BVFRSX0hJKGFzX25yKSwgMCk7Cj4+Cj4+ICsgICAgICAg aWYgKHBhbmZyb3N0X2hhc19od19mZWF0dXJlKHBmZGV2LCBIV19GRUFUVVJFX0FBUkNINjRfTU1V KSkgewo+PiArICAgICAgICAgICAgICAgbW11X3dyaXRlKHBmZGV2LCBBU19UUkFOU0NGR19MTyhh c19uciksIDApOwo+PiArICAgICAgICAgICAgICAgbW11X3dyaXRlKHBmZGV2LCBBU19UUkFOU0NG R19ISShhc19uciksIDApOwo+PiArICAgICAgIH0KPj4gKwo+PiAgICAgICAgICB3cml0ZV9jbWQo cGZkZXYsIGFzX25yLCBBU19DT01NQU5EX1VQREFURSk7Cj4+ICAgfQo+Pgo+PiBAQCAtMzM1LDYg KzM1Nyw3IEBAIHN0YXRpYyBpcnFyZXR1cm5fdCBwYW5mcm9zdF9tbXVfaXJxX2hhbmRsZXIoaW50 IGlycSwgdm9pZCAqZGF0YSkKPj4gICBpbnQgcGFuZnJvc3RfbW11X2luaXQoc3RydWN0IHBhbmZy b3N0X2RldmljZSAqcGZkZXYpCj4+ICAgewo+PiAgICAgICAgICBzdHJ1Y3QgaW9fcGd0YWJsZV9v cHMgKnBndGJsX29wczsKPj4gKyAgICAgICBlbnVtIGlvX3BndGFibGVfZm10IHBndF9mbXQgPSBB Uk1fTUFMSV9MUEFFOwo+PiAgICAgICAgICBpbnQgZXJyLCBpcnE7Cj4+Cj4+ICAgICAgICAgIHBm ZGV2LT5tbXUgPSBkZXZtX2t6YWxsb2MocGZkZXYtPmRldiwgc2l6ZW9mKCpwZmRldi0+bW11KSwg R0ZQX0tFUk5FTCk7Cj4+IEBAIC0zNjUsNyArMzg4LDEwIEBAIGludCBwYW5mcm9zdF9tbXVfaW5p dChzdHJ1Y3QgcGFuZnJvc3RfZGV2aWNlICpwZmRldikKPj4gICAgICAgICAgICAgICAgICAuaW9t bXVfZGV2ICAgICAgPSBwZmRldi0+ZGV2LAo+PiAgICAgICAgICB9Owo+Pgo+PiAtICAgICAgIHBn dGJsX29wcyA9IGFsbG9jX2lvX3BndGFibGVfb3BzKEFSTV9NQUxJX0xQQUUsICZwZmRldi0+bW11 LT5wZ3RibF9jZmcsCj4+ICsgICAgICAgaWYgKHBhbmZyb3N0X2hhc19od19mZWF0dXJlKHBmZGV2 LCBIV19GRUFUVVJFX0FBUkNINjRfTU1VKSkKPj4gKyAgICAgICAgICAgICAgIHBndF9mbXQgPSBB Uk1fNjRfTFBBRV9TMTsKPj4gKwo+PiArICAgICAgIHBndGJsX29wcyA9IGFsbG9jX2lvX3BndGFi bGVfb3BzKHBndF9mbXQsICZwZmRldi0+bW11LT5wZ3RibF9jZmcsCj4+ICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgIHBmZGV2KTsKPj4gICAgICAgICAgaWYgKCFwZ3Ri bF9vcHMpCj4+ICAgICAgICAgICAgICAgICAgcmV0dXJuIC1FTk9NRU07Cj4+IGRpZmYgLS1naXQg YS9kcml2ZXJzL2dwdS9kcm0vcGFuZnJvc3QvcGFuZnJvc3RfcmVncy5oIGIvZHJpdmVycy9ncHUv ZHJtL3BhbmZyb3N0L3BhbmZyb3N0X3JlZ3MuaAo+PiBpbmRleCA1NzhjNWZjMjE4OGIuLjMxMjEx ZGY4M2MzMCAxMDA2NDQKPj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL3BhbmZyb3N0L3BhbmZyb3N0 X3JlZ3MuaAo+PiArKysgYi9kcml2ZXJzL2dwdS9kcm0vcGFuZnJvc3QvcGFuZnJvc3RfcmVncy5o Cj4+IEBAIC0yODcsNiArMjg3LDkgQEAKPj4gICAjZGVmaW5lIEFTX1RSQU5TVEFCX0xQQUVfUkVB RF9JTk5FUiAgICAgICAgICAgIEJJVCgyKQo+PiAgICNkZWZpbmUgQVNfVFJBTlNUQUJfTFBBRV9T SEFSRV9PVVRFUiAgICAgICAgICAgQklUKDQpCj4+Cj4+ICsjZGVmaW5lIEFTX1RSQU5TQ0ZHX0FE Uk1PREVfQUFSQ0g2NF80SyAgICAgICAgIDYKPj4gKyNkZWZpbmUgQVNfVFJBTlNDRkdfUFRXX01F TUFUVFJfV1JJVEVfQkFDSyAgICAgKDIgPDwgMjQpCj4+ICsKPj4gICAjZGVmaW5lIEFTX1NUQVRV U19BU19BQ1RJVkUgICAgICAgICAgICAgICAgICAgIDB4MDEKPj4KPj4gICAjZGVmaW5lIEFTX0ZB VUxUU1RBVFVTX0FDQ0VTU19UWVBFX01BU0sgICAgICAgICAgICAgICAgKDB4MyA8PCA4KQo+PiAt LQo+PiAyLjIwLjEKPj4KPj4gX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KPj4gZHJpLWRldmVsIG1haWxpbmcgbGlzdAo+PiBkcmktZGV2ZWxAbGlzdHMuZnJl ZWRlc2t0b3Aub3JnCj4+IGh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlz dGluZm8vZHJpLWRldmVsCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9w Lm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1k ZXZlbA==