From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Gordon Subject: Re: [PATCH 14/32] drm/i915: Remove forcewake dance from seqno/irq barrier on legacy gen6+ Date: Tue, 5 Jan 2016 12:45:58 +0000 Message-ID: <568BBB06.2070709@intel.com> References: <1449833608-22125-1-git-send-email-chris@chris-wilson.co.uk> <1449833608-22125-15-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 mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTP id 734996E197 for ; Tue, 5 Jan 2016 04:46:18 -0800 (PST) In-Reply-To: <1449833608-22125-15-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: Chris Wilson , intel-gfx@lists.freedesktop.org Cc: Daniel Vetter List-Id: intel-gfx@lists.freedesktop.org T24gMTEvMTIvMTUgMTE6MzMsIENocmlzIFdpbHNvbiB3cm90ZToKPiBJbiBvcmRlciB0byBlbnN1 cmUgc2Vxbm8vaXJxIGNvaGVyZW5jeSwgd2UgY3VycmVudCByZWFkIGEgcmluZyByZWdpc3Rlci4K PiBXZSBhcmUgbm90IHN1cmUgcXVpdGUgaG93IGl0IHdvcmtzLCBvbmx5IHRoYXQgaXMgZG9lcy4g RXhwZXJpbWVudHMgc2hvdwo+IHRoYXQgZS5nLiBkb2luZyBhIGNsZmx1c2goc2Vxbm8pIGluc3Rl YWQgaXMgbm90IHN1ZmZpY2llbnQsIGJ1dCB3ZSBjYW4KPiByZW1vdmUgdGhlIGZvcmNld2FrZSBk YW5jZSBmcm9tIHRoZSBtbWlvIGFjY2Vzcy4KPgo+IHYyOiBCYXl0cmFpbCB3YW50cyBhIGNsZmx1 c2ggdG9vLgo+Cj4gU2lnbmVkLW9mZi1ieTogQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxz b24uY28udWs+Cj4gQ2M6IERhbmllbCBWZXR0ZXIgPGRhbmllbC52ZXR0ZXJAZmZ3bGwuY2g+Cj4g LS0tCj4gICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9yaW5nYnVmZmVyLmMgfCAxNSArKysr KysrKysrKysrLS0KPiAgIDEgZmlsZSBjaGFuZ2VkLCAxMyBpbnNlcnRpb25zKCspLCAyIGRlbGV0 aW9ucygtKQo+Cj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3Jpbmdi dWZmZXIuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3JpbmdidWZmZXIuYwo+IGluZGV4 IDZjZWNjMTVlYzAxYi4uNjlkZDY5ZTQ2ZmE5IDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2Ry bS9pOTE1L2ludGVsX3JpbmdidWZmZXIuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2lu dGVsX3JpbmdidWZmZXIuYwo+IEBAIC0xNDkwLDEwICsxNDkwLDIxIEBAIGdlbjZfcmluZ19nZXRf c2Vxbm8oc3RydWN0IGludGVsX2VuZ2luZV9jcyAqcmluZywgYm9vbCBsYXp5X2NvaGVyZW5jeSkK PiAgIHsKPiAgIAkvKiBXb3JrYXJvdW5kIHRvIGZvcmNlIGNvcnJlY3Qgb3JkZXJpbmcgYmV0d2Vl biBpcnEgYW5kIHNlcW5vIHdyaXRlcyBvbgo+ICAgCSAqIGl2YiAoYW5kIG1heWJlIGFsc28gb24g c25iKSBieSByZWFkaW5nIGZyb20gYSBDUyByZWdpc3RlciAobGlrZQo+IC0JICogQUNUSEQpIGJl Zm9yZSByZWFkaW5nIHRoZSBzdGF0dXMgcGFnZS4gKi8KPiArCSAqIEFDVEhEKSBiZWZvcmUgcmVh ZGluZyB0aGUgc3RhdHVzIHBhZ2UuCj4gKwkgKgo+ICsJICogTm90ZSB0aGF0IHRoaXMgZWZmZWN0 aXZlbHkgZWZmZWN0aXZlbHkgc3RhbGxzIHRoZSByZWFkIGJ5IHRoZSB0aW1lCj4gKwkgKiBpdCB0 YWtlcyB0byBkbyBhIG1lbW9yeSB0cmFuc2FjdGlvbiwgd2hpY2ggbW9yZSBvciBsZXNzIGVuc3Vy ZXMKPiArCSAqIHRoYXQgdGhlIHdyaXRlIGZyb20gdGhlIEdQVSBoYXMgc3VmZmljaWVudCB0aW1l IHRvIGludmFsaWRhdGUKPiArCSAqIHRoZSBDUFUgY2FjaGVsaW5lLiBBbHRlcm5hdGl2ZWx5IHdl IGNvdWxkIGRlbGF5IHRoZSBpbnRlcnJ1cHQgZnJvbQo+ICsJICogdGhlIENTIHJpbmcgdG8gZ2l2 ZSB0aGUgd3JpdGUgdGltZSB0byBsYW5kLCBidXQgdGhhdCB3b3VsZCBpbmN1cgo+ICsJICogYSBk ZWxheSBhZnRlciBldmVyeSBiYXRjaCBpLmUuIG11Y2ggbW9yZSBmcmVxdWVudCB0aGFuIGEgZGVs YXkKPiArCSAqIHdoZW4gd2FpdGluZyBmb3IgdGhlIGludGVycnVwdCAod2l0aCB0aGUgc2FtZSBu ZXQgbGF0ZW5jeSkuCj4gKwkgKi8KPiAgIAlpZiAoIWxhenlfY29oZXJlbmN5KSB7Cj4gICAJCXN0 cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiA9IHJpbmctPmRldi0+ZGV2X3ByaXZhdGU7 Cj4gLQkJUE9TVElOR19SRUFEKFJJTkdfQUNUSEQocmluZy0+bW1pb19iYXNlKSk7Cj4gKwkJUE9T VElOR19SRUFEX0ZXKFJJTkdfQUNUSEQocmluZy0+bW1pb19iYXNlKSk7Cj4gKwo+ICsJCWludGVs X2ZsdXNoX3N0YXR1c19wYWdlKHJpbmcsIEk5MTVfR0VNX0hXU19JTkRFWCk7Cj4gICAJfQo+Cj4g ICAJcmV0dXJuIGludGVsX3JlYWRfc3RhdHVzX3BhZ2UocmluZywgSTkxNV9HRU1fSFdTX0lOREVY KTsKCkhtbSAuLi4gd291bGQgcHV0dGluZyB0aGUgZmx1c2ggYmVmb3JlIHRoZSBQT1NUSU5HX1JF QUQgYmUgYmV0dGVyPwoKRGVwZW5kaW5nIG9uIGhvdyB0aGUgaC93IGltcGxlbWVudHMgdGhlIGNh Y2hlbGluZSBpbnZhbGlkYXRpb24sIGl0IG1pZ2h0IAphbGxvdyBzb21lIG92ZXJsYXAgYmV0d2Vl biB0aGUgY2FjaGUgY29udHJvbGxlcidzIGludGVybmFsIGFjdGl2aXRpZXMgCmFuZCB0aGUgTU1J TyBjeWNsZSAuLi4KCkFsc28sIHByZXZpb3VzbHkgd2Ugb25seSBoYWQgdGhlIGZsdXNoIG9uIEJY VCwgd2hlcmVhcyBub3cgeW91J3JlIGRvaW5nIAppdCBvbiBhbGwgZ2VuNisuIEkgdGhpbmsgdGhp cyBpcyBwcm9iYWJseSBhIGdvb2QgdGhpbmcsIGJ1dCBqdXN0IAp3b25kZXJlZCB3aGV0aGVyIHRo ZXJlJ3MgYW55IGRvd25zaWRlIHRvIGl0PwoKQWxzbyAuLi4gYXJlIHdlIHN1cmUgdGhhdCBuby1v bmUgY2FsbHMgdGhpcyB3aXRob3V0IGhhdmluZyBhIGZvcmNld2FrZSAKaW4gZWZmZWN0IGF0IHRo ZSB0aW1lLCBpbiBwYXJ0aWN1bGFyIGRlYnVnZnM/IE9yIGlzIGl0IG5vdCBnb2luZyB0byBlbmQg CnVwIGdvaW5nIHRocm91Z2ggaGVyZSBvbmNlIGxhenlfY29oZXJlbmN5IGlzIGFib2xpc2hlZD8K Ci5EYXZlLgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJ bnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0 cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=