From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Gordon Subject: Re: [PATCH 18/32] drm/i915: Use HWS for seqno tracking everywhere Date: Mon, 4 Jan 2016 18:11:56 +0000 Message-ID: <568AB5EC.1010704@intel.com> References: <1449833608-22125-1-git-send-email-chris@chris-wilson.co.uk> <1449833608-22125-19-git-send-email-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTP id 1565289D46 for ; Mon, 4 Jan 2016 10:11:58 -0800 (PST) In-Reply-To: <1449833608-22125-19-git-send-email-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: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gMTEvMTIvMTUgMTE6MzMsIENocmlzIFdpbHNvbiB3cm90ZToKPiBCeSB1c2luZyB0aGUgc2Ft ZSBhZGRyZXNzIGZvciBzdG9yaW5nIHRoZSBIV1Mgb24gZXZlcnkgcGxhdGZvcm0sIHdlIGNhbgo+ IHJlbW92ZSB0aGUgcGxhdGZvcm0gc3BlY2lmaWMgdmZ1bmNzIGFuZCByZWR1Y2UgdGhlIGdldC1z ZXFubyByb3V0aW5lIHRvCj4gYSBzaW5nbGUgcmVhZCBvZiBhIGNhY2hlZCBtZW1vcnkgbG9jYXRp b24uCj4KPiBTaWduZWQtb2ZmLWJ5OiBDaHJpcyBXaWxzb24gPGNocmlzQGNocmlzLXdpbHNvbi5j by51az4KPiAtLS0KPiAgIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZGVidWdmcy5jICAgICAg fCAxMCArKy0tCj4gICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2Rydi5oICAgICAgICAgIHwg IDQgKy0KPiAgIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ3B1X2Vycm9yLmMgICAgfCAgMiAr LQo+ICAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9pcnEuYyAgICAgICAgICB8ICA0ICstCj4g ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X3RyYWNlLmggICAgICAgIHwgIDIgKy0KPiAgIGRy aXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2JyZWFkY3J1bWJzLmMgfCAgNCArLQo+ICAgZHJpdmVy cy9ncHUvZHJtL2k5MTUvaW50ZWxfbHJjLmMgICAgICAgICB8IDQ2ICsrLS0tLS0tLS0tLS0tLS0t Cj4gICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9yaW5nYnVmZmVyLmMgIHwgODYgKysrKysr KystLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0KPiAgIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVs X3JpbmdidWZmZXIuaCAgfCAgNyArLS0KPiAgIDkgZmlsZXMgY2hhbmdlZCwgNDMgaW5zZXJ0aW9u cygrKSwgMTIyIGRlbGV0aW9ucygtKQoKVGhpcyBsb29rcyB3b3J0aHdoaWxlLCBhbmQgbW9zdCBv ZiBpdCBpcyBvYnZpb3VzbHkgY29ycmVjdCwganVzdCBiZWluZyBhIApzaW1wbGUgdHJhbnNmb3Jt YXRpb24uIEJ1dCBpdCBsb29rcyBsaWtlIHBjX3JlbmRlcl9hZGRfcmVxdWVzdCgpIAphY3R1YWxs eSBjaGFuZ2VzIGZ1bmN0aW9uYWxpdHkgc29tZXdoYXQ6Cgo+IEBAIC0xNDQwLDcgKzE0MzQsOSBA QCBzdGF0aWMgaW50Cj4gICBwY19yZW5kZXJfYWRkX3JlcXVlc3Qoc3RydWN0IGRybV9pOTE1X2dl bV9yZXF1ZXN0ICpyZXEpCj4gICB7Cj4gICAJc3RydWN0IGludGVsX2VuZ2luZV9jcyAqcmluZyA9 IHJlcS0+cmluZzsKPiAtCXUzMiBzY3JhdGNoX2FkZHIgPSByaW5nLT5zY3JhdGNoLmd0dF9vZmZz ZXQgKyAyICogQ0FDSEVMSU5FX0JZVEVTOwo+ICsJdTMyIGFkZHIgPSByZXEtPnJpbmctPnN0YXR1 c19wYWdlLmdmeF9hZGRyICsKPiArCQkoSTkxNV9HRU1fSFdTX0lOREVYIDw8IE1JX1NUT1JFX0RX T1JEX0lOREVYX1NISUZUKTsKPiArCXUzMiBzY3JhdGNoX2FkZHIgPSBhZGRyOwo+ICAgCWludCBy ZXQ7Cj4KPiAgIAkvKiBGb3IgSXJvbmxha2UsIE1JX1VTRVJfSU5URVJSVVBUIHdhcyBkZXByZWNh dGVkIGFuZCBhcHBhcmVudGx5Cj4gQEAgLTE0NTUsMTEgKzE0NTEsMTIgQEAgcGNfcmVuZGVyX2Fk ZF9yZXF1ZXN0KHN0cnVjdCBkcm1faTkxNV9nZW1fcmVxdWVzdCAqcmVxKQo+ICAgCWlmIChyZXQp Cj4gICAJCXJldHVybiByZXQ7Cj4KPiAtCWludGVsX3JpbmdfZW1pdChyaW5nLCBHRlhfT1BfUElQ RV9DT05UUk9MKDQpIHwgUElQRV9DT05UUk9MX1FXX1dSSVRFIHwKPiAtCQkJUElQRV9DT05UUk9M X1dSSVRFX0ZMVVNIIHwKPiAtCQkJUElQRV9DT05UUk9MX1RFWFRVUkVfQ0FDSEVfSU5WQUxJREFU RSk7Cj4gLQlpbnRlbF9yaW5nX2VtaXQocmluZywgcmluZy0+c2NyYXRjaC5ndHRfb2Zmc2V0IHwg UElQRV9DT05UUk9MX0dMT0JBTF9HVFQpOwo+IC0JaW50ZWxfcmluZ19lbWl0KHJpbmcsIGk5MTVf Z2VtX3JlcXVlc3RfZ2V0X3NlcW5vKHJlcSkpOwo+ICsJaW50ZWxfcmluZ19lbWl0KHJpbmcsCj4g KwkJCUdGWF9PUF9QSVBFX0NPTlRST0woNCkgfAo+ICsJCQlQSVBFX0NPTlRST0xfUVdfV1JJVEUg fAo+ICsJCQlQSVBFX0NPTlRST0xfV1JJVEVfRkxVU0gpOwo+ICsJaW50ZWxfcmluZ19lbWl0KHJp bmcsIGFkZHIgfCBQSVBFX0NPTlRST0xfR0xPQkFMX0dUVCk7Cj4gKwlpbnRlbF9yaW5nX2VtaXQo cmluZywgcmVxLT5zZXFubyk7Cj4gICAJaW50ZWxfcmluZ19lbWl0KHJpbmcsIDApOwo+ICAgCVBJ UEVfQ09OVFJPTF9GTFVTSChyaW5nLCBzY3JhdGNoX2FkZHIpOwo+ICAgCXNjcmF0Y2hfYWRkciAr PSAyICogQ0FDSEVMSU5FX0JZVEVTOyAvKiB3cml0ZSB0byBzZXBhcmF0ZSBjYWNoZWxpbmVzICov Cj4gQEAgLTE0NzMsMTIgKzE0NzAsMTIgQEAgcGNfcmVuZGVyX2FkZF9yZXF1ZXN0KHN0cnVjdCBk cm1faTkxNV9nZW1fcmVxdWVzdCAqcmVxKQo+ICAgCXNjcmF0Y2hfYWRkciArPSAyICogQ0FDSEVM SU5FX0JZVEVTOwo+ICAgCVBJUEVfQ09OVFJPTF9GTFVTSChyaW5nLCBzY3JhdGNoX2FkZHIpOwo+ Cj4gLQlpbnRlbF9yaW5nX2VtaXQocmluZywgR0ZYX09QX1BJUEVfQ09OVFJPTCg0KSB8IFBJUEVf Q09OVFJPTF9RV19XUklURSB8Cj4gKwlpbnRlbF9yaW5nX2VtaXQocmluZywgR0ZYX09QX1BJUEVf Q09OVFJPTCg0KSB8Cj4gKwkJCVBJUEVfQ09OVFJPTF9RV19XUklURSB8Cj4gICAJCQlQSVBFX0NP TlRST0xfV1JJVEVfRkxVU0ggfAo+IC0JCQlQSVBFX0NPTlRST0xfVEVYVFVSRV9DQUNIRV9JTlZB TElEQVRFIHwKPiAgIAkJCVBJUEVfQ09OVFJPTF9OT1RJRlkpOwo+IC0JaW50ZWxfcmluZ19lbWl0 KHJpbmcsIHJpbmctPnNjcmF0Y2guZ3R0X29mZnNldCB8IFBJUEVfQ09OVFJPTF9HTE9CQUxfR1RU KTsKPiAtCWludGVsX3JpbmdfZW1pdChyaW5nLCBpOTE1X2dlbV9yZXF1ZXN0X2dldF9zZXFubyhy ZXEpKTsKPiArCWludGVsX3JpbmdfZW1pdChyaW5nLCBhZGRyIHwgUElQRV9DT05UUk9MX0dMT0JB TF9HVFQpOwo+ICsJaW50ZWxfcmluZ19lbWl0KHJpbmcsIHJlcS0+c2Vxbm8pOwo+ICAgCWludGVs X3JpbmdfZW1pdChyaW5nLCAwKTsKPiAgIAlfX2ludGVsX3JpbmdfYWR2YW5jZShyaW5nKTsKClNv IHByZXZpb3VzbHksIHdlIHdyb3RlIHRoZSBzZXFubyBhbmQgb3RoZXIgZHVtbXkgZGF0YSBpbnRv IHRoZSBTQ1JBVENIIApwYWdlLCB3aGVyZWFzIG5vdyBpdCdzIGdvaW5nIHRvIHRoZSBIV1NQLiBE b2VzIHRoYXQgbWFrZSB0aGUgc2NyYXRjaCAKcGFnZSByZWR1bmRhbnQ/IE9yIGFyZSB0aGVyZSBv dGhlciBiaXRzIG9mIGNvZGUgdGhhdCB3cml0ZSBvdGhlciBzdHVmZiAKaW50byBpdD8KClRoZW4s IHRoZSBuZXcgY29kZSBub3Qgb25seSB3cml0ZXMgaW4gZHdvcmQgSTkxNV9HRU1fSFdTX0lOREVY IG9mIHRoZSAKSFdTUCwgYnV0IGFsc28gYXQgbXVsdGlwbGUgY2FjaGUgbGluZXMgYWJvdmUgdGhp cyBhZGRyZXNzLiBEbyB0aG9zZSAKd3JpdGUgaGF2ZSB0byBiZSB0byB0aGUgc2FtZSBwYWdlIGFz IHRoZSBzZXFubywgb3IgY291bGQgdGhleSBzdGlsbCBnbyAKdG8gdGhlIHNjcmF0Y2ggcGFnZT8K CklmIHRoZSBsYXR0ZXIsIEkgdGhpbmsgd2UnZCBuZWVkIHRvIGZsYWcgdGhpcyBpbiBhIGJpZyBj b21tZW50IGFib3ZlIHRoZSAKZGVmaW5pdGlvbiBvZiBJOTE1X0dFTV9IV1NfSU5ERVgsIGJlY2F1 c2UgaXQncyBub3QganVzdCBkZWZpbmluZyBhIApzaW5nbGUgd29yZCBhcyBpdCBhcHBlYXJzLCBi dXQgcmF0aGVyIGEgbGFyZ2UgYmxvY2sgdGhhdCB3aWxsIGJlIApzY3JpYmJsZWQgb24uCgooTm90 ZTogVERSIGFuZCB0aGUgcHJlZW1wdGlvbiBjb2RlIGVhY2ggcmVxdWlyZSBzb21lIGV4dHJhIGxv Y2F0aW9ucyBpbiAKdGhlIEhXU1A7IHRoZXkgbXVzdG4ndCBiZSBzY3JpYmJsZWQgb3ZlciB3aXRo IGR1bW15IGRhdGEpLgoKRmluYWxseSwgd2Ugc2VlbSB0byBoYXZlIGxvc3QgdGhlIFBJUEVfQ09O VFJPTF9URVhUVVJFX0NBQ0hFX0lOVkFMSURBVEUgCmJpdHM7IHdhcyB0aGF0IGRlbGliZXJhdGU/ IEFuZCBzaG91bGQgaXQgaGF2ZSBiZWVuIGluIGEgc2VwYXJhdGUgcGF0Y2g/CgouRGF2ZS4KX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1h aWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHA6Ly9saXN0cy5m cmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK