From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Kuoppala Subject: Re: [PATCH 05/11] drm/i915/gtt: Compute the radix for gen8 page table levels Date: Wed, 10 Jul 2019 16:49:05 +0300 Message-ID: <87pnmiq9ta.fsf@gaia.fi.intel.com> References: <20190707210024.26192-1-chris@chris-wilson.co.uk> <20190707210024.26192-6-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id BB00289048 for ; Wed, 10 Jul 2019 13:49:19 +0000 (UTC) In-Reply-To: <20190707210024.26192-6-chris@chris-wilson.co.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Chris Wilson , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org Q2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+IHdyaXRlczoKCj4gVGhlIHJh ZGl4IGxldmVscyBvZiBlYWNoIHBhZ2UgZGlyZWN0b3J5IGFyZSBlYXNpbHkgZGV0ZXJtaW5lZCBz byByZXBsYWNlCj4gdGhlIG51bWVyb3VzIGhhcmRjb2RlZCBjb25zdGFudHMgd2l0aCBwcmVjb21w dXRlZCBkZXJpdmVkIGNvbnN0YW50cy4KPgo+IFNpZ25lZC1vZmYtYnk6IENocmlzIFdpbHNvbiA8 Y2hyaXNAY2hyaXMtd2lsc29uLmNvLnVrPgo+IC0tLQo+ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9p OTE1X2dlbV9ndHQuYyB8IDM5ICsrKysrKysrKysrKysrKysrKysrKysrKysrKysrCj4gIDEgZmls ZSBjaGFuZ2VkLCAzOSBpbnNlcnRpb25zKCspCj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUv ZHJtL2k5MTUvaTkxNV9nZW1fZ3R0LmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dlbV9n dHQuYwo+IGluZGV4IDJmYzYwZThhY2Q5YS4uMjcxMzA1NzA1YzFjIDEwMDY0NAo+IC0tLSBhL2Ry aXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtX2d0dC5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJt L2k5MTUvaTkxNV9nZW1fZ3R0LmMKPiBAQCAtODY4LDYgKzg2OCw0NSBAQCBzdGF0aWMgaW50IGdl bjhfcHBndHRfbm90aWZ5X3ZndChzdHJ1Y3QgaTkxNV9wcGd0dCAqcHBndHQsIGJvb2wgY3JlYXRl KQo+ICAJcmV0dXJuIDA7Cj4gIH0KPiAgCj4gKy8qIEluZGV4IHNoaWZ0cyBpbnRvIHRoZSBwYWdl dGFibGUgYXJlIG9mZnNldCBieSBHRU44X1BURV9TSElGVCBbMTJdICovCj4gKyNkZWZpbmUgZ2Vu OF9wZF9zaGlmdChsdmwpICgobHZsKSAqIGlsb2cyKEk5MTVfUERFUykpCgpDb3VsZCBiZSBqdXN0 IChsdmwpICogOS4gQnV0IGxvb2tpbmcgYXQgaWxvZzIoKSBpdCB3aWxsIGJlCnNvIGJvdGggYXJl IGZpbmUuCgo+ICsjZGVmaW5lIGdlbjhfcGRfaW5kZXgoaSwgbHZsKSBpOTE1X3BkZV9pbmRleCgo aSksIGdlbjhfcGRfc2hpZnQobHZsKSkKPiArI2RlZmluZSBfX2dlbjhfcHRlX3NoaWZ0KGx2bCkg KEdFTjhfUFRFX1NISUZUICsgZ2VuOF9wZF9zaGlmdChsdmwpKQo+ICsjZGVmaW5lIF9fZ2VuOF9w dGVfaW5kZXgoYSwgbHZsKSBpOTE1X3BkZV9pbmRleCgoYSksIF9fZ2VuOF9wdGVfc2hpZnQobHZs KSkKPiArCj4gK3N0YXRpYyBpbmxpbmUgdW5zaWduZWQgaW50Cj4gK2dlbjhfcGRfcmFuZ2UodTY0 IGFkZHIsIHU2NCBlbmQsIGludCBsdmwsIHVuc2lnbmVkIGludCAqaWR4KQoKSSB3YXMgZW5vdWdo IGNvbmZ1c2VkIChldmVuIHRobyB0aGUgbGFzdCBmdW5jdGlvbiByZXZlYWxzCml0IGNsZWFybHkp IHRoYXQgaW4gaXJjIHdlIGNvbmNsdWRlZCB0aGF0IGFkZHIgYXMgYQpmaXJzdCBwYXJhbWV0ZXIg aXMgbWlzbGVhZGluZyBhbmQgY29udmVyZ2VkIG9uICdzdGFydCcKCj4gK3sKPiArCWNvbnN0IGlu dCBzaGlmdCA9IGdlbjhfcGRfc2hpZnQobHZsKTsKPiArCWNvbnN0IHU2NCBtYXNrID0gfjB1bGwg PDwgZ2VuOF9wZF9zaGlmdChsdmwgKyAxKTsKPiArCj4gKwlHRU1fQlVHX09OKGFkZHIgPj0gZW5k KTsKPiArCWVuZCArPSB+bWFzayA+PiBnZW44X3BkX3NoaWZ0KDEpOwo+ICsKPiArCSppZHggPSBp OTE1X3BkZV9pbmRleChhZGRyLCBzaGlmdCk7Cj4gKwlpZiAoKGFkZHIgXiBlbmQpICYgbWFzaykK PiArCQlyZXR1cm4gSTkxNV9QREVTIC0gKmlkeDsKPiArCWVsc2UKPiArCQlyZXR1cm4gaTkxNV9w ZGVfaW5kZXgoZW5kLCBzaGlmdCkgLSAqaWR4Owo+ICt9Cj4gKwo+ICtzdGF0aWMgaW5saW5lIGJv b2wgZ2VuOF9wZF9zdWJzdW1lcyh1NjQgYWRkciwgdTY0IGVuZCwgaW50IGx2bCkKPiArewoKSnVz dCBhIHN1Z2dlc3Rpb24gZ2VuOF9wZF9jb250YWlucygpIGZvciBlbXBoYXNpcyBvbiBleGNsdXNp dml0eS4KQnV0IHdlbGwsIHRoaXMgaXMgZmluZSB0b28uIEkgZ3Vlc3Mgd2hhdCByZWFkcyBiZXR0 ZXIgaW4gY2FsbHNpdGUsCih3aGljaCB3ZSBkb250IHNlZSB5ZXQhKQoKPiArCWNvbnN0IHU2NCBt YXNrID0gfjB1bGwgPDwgZ2VuOF9wZF9zaGlmdChsdmwgKyAxKTsKPiArCj4gKwlHRU1fQlVHX09O KGFkZHIgPj0gZW5kKTsKPiArCXJldHVybiAoYWRkciBeIGVuZCkgJiBtYXNrICYmIChhZGRyICYg fm1hc2spID09IDA7Cj4gK30KPiArCj4gK3N0YXRpYyBpbmxpbmUgdW5zaWduZWQgaW50IGdlbjhf cHRfY291bnQodTY0IGFkZHIsIHU2NCBlbmQpCj4gK3sKPiArCUdFTV9CVUdfT04oYWRkciA+PSBl bmQpOwo+ICsJaWYgKChhZGRyIF4gZW5kKSAmIH5JOTE1X1BERV9NQVNLKQo+ICsJCXJldHVybiBJ OTE1X1BERVMgLSAoYWRkciAmIEk5MTVfUERFX01BU0spOwoKT2ssIEkgeWllbGQgb24gNTEyLiBJ OTE1X1BERVMgaXMgZmluZSBhcyBpdCBhdGxlYXN0CmNvdXBsZXMgaXQgdG8gbWFzayA6TwoKV2l0 aCBzL2FkZHIvc3RhcnQsCgpSZXZpZXdlZC1ieTogTWlrYSBLdW9wcGFsYSA8bWlrYS5rdW9wcGFs YUBtaWthLmt1b3BwYWxhQGxpbnV4LmludGVsLmNvbT4KCj4gKwllbHNlCj4gKwkJcmV0dXJuIGVu ZCAtIGFkZHI7Cj4gK30KPiArCj4gIHN0YXRpYyB2b2lkIGdlbjhfZnJlZV9wYWdlX3RhYmxlcyhz dHJ1Y3QgaTkxNV9hZGRyZXNzX3NwYWNlICp2bSwKPiAgCQkJCSAgc3RydWN0IGk5MTVfcGFnZV9k aXJlY3RvcnkgKnBkKQo+ICB7Cj4gLS0gCj4gMi4yMC4xCl9fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4 QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWls bWFuL2xpc3RpbmZvL2ludGVsLWdmeA==