From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH v3] drm/i915: Eliminate vmap overhead for cmd parser Date: Wed, 25 Nov 2015 23:15:58 +0200 Message-ID: <20151125211558.GA4437@intel.com> References: <20151120144153.GL4437@intel.com> <1448033483-3884-1-git-send-email-chris@chris-wilson.co.uk> <20151125195108.GY4437@intel.com> <20151125201343.GI22980@nuc-i3427.alporthouse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id 2AF10721CE for ; Wed, 25 Nov 2015 13:16:07 -0800 (PST) Content-Disposition: inline In-Reply-To: <20151125201343.GI22980@nuc-i3427.alporthouse.com> 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 T24gV2VkLCBOb3YgMjUsIDIwMTUgYXQgMDg6MTM6NDNQTSArMDAwMCwgQ2hyaXMgV2lsc29uIHdy b3RlOgo+IE9uIFdlZCwgTm92IDI1LCAyMDE1IGF0IDA5OjUxOjA4UE0gKzAyMDAsIFZpbGxlIFN5 cmrDpGzDpCB3cm90ZToKPiA+IE9uIEZyaSwgTm92IDIwLCAyMDE1IGF0IDAzOjMxOjIzUE0gKzAw MDAsIENocmlzIFdpbHNvbiB3cm90ZToKPiA+ID4gQEAgLTEwOTcsNiArMTAwMyw3IEBAIHN0YXRp YyBib29sIGNoZWNrX2NtZChjb25zdCBzdHJ1Y3QgaW50ZWxfZW5naW5lX2NzICpyaW5nLAo+ID4g PiAgfQo+ID4gPiAgCj4gPiA+ICAjZGVmaW5lIExFTkdUSF9CSUFTIDIKPiA+ID4gKyNkZWZpbmUg TUFYX1BBUlRJQUwgMjU2Cj4gPiAKPiA+IFRoZXJlIHNlZW1zIHRvIHNvbWUgY29uZnVzaW9uIHdo ZXRoZXIgdGhpcyBpcyBieXRlcyBvciBkd29yZHMuCj4gCj4gSW5kZWVkLCBJIGNhbid0IHJlbWVt YmVyIG9mIHRoZSB0b3Agb2YgbXkgaGVhZC4KPiAKPiAoRG91YmxlIGNoZWNrZWQgdGhhdCB0aGUg c2V0IG9mIGNvbW1hbmRzIHRoYXQgSSB3YXMgdGhpbmtpbmcgd2VyZSAxMzIKPiBieXRlcy4pCj4g IAo+ID4gQWxzbyBJIGd1ZXNzIHdlIGFscmVhZHkgZW5kIHVwIGFsbG9jYXRpbmcgdHdvIHBhZ2Vz IGFueXdheSwgc28KPiA+IG1heWJlIE1BWF9QQVJUSUFMIHNob3VsZCBqdXN0IGJlIG9uZSBwYWdl PyBJdCdzIHN0aWxsIG5vdCBiaWcKPiA+IGVub3VnaCB0byBjb3ZlciB0aGUgbWF4IGxlZ2FsIGNt ZCBsZW5ndGggQUZBSUNTLCBzbyBJIHRoaW5rCj4gPiB0aGUgV0FSTiBpbiB0aGUgY2hlY2sgbmVl ZHMgdG8gYmUgcmVtb3ZlZC4KPiAKPiBTdXJlLCByb3VuZGluZyB1cCB0aGUgbmV4dCA4MTkyIGJ5 dGUgc2xhYiBjYWNoZSBkb2Vzbid0IHNlZW0gbGlrZSBpdAo+IHdpbGwgYml0ZSB1cy4KPiAKPiBT byAjZGVmaW5lIE1BWF9QQVJUSUFMX0JZVEVTIFBBR0VfU0laRQo+IAo+ID4gPiArCWluID0gb2Zm c2V0X2luX3BhZ2UoYmF0Y2hfc3RhcnRfb2Zmc2V0KTsKPiA+ID4gKwlwYXJ0aWFsID0gMDsKPiA+ ID4gKwlmb3IgKHNyY19pdGVyID0gYmF0Y2hfc3RhcnRfb2Zmc2V0ID4+IFBBR0VfU0hJRlQ7Cj4g PiA+ICsJICAgICBzcmNfaXRlciA8IGJhdGNoX29iai0+YmFzZS5zaXplID4+IFBBR0VfU0hJRlQ7 Cj4gPiA+ICsJICAgICBzcmNfaXRlcisrKSB7Cj4gPiAKPiA+IFNvIHdlJ3JlIGl0ZXJhdGluZyBv dmVyIGFsbCB0aGUgcGFnZXMuIFNob3VsZCBiZSBlbm91Z2ggdG8gaXRlcmF0ZQo+ID4gdW50aWwg YmF0Y2hfc3RhcnRfb2Zmc2V0K2JhdGNoX2xlbiBJIHN1cHBvc2UsIGJ1dCBhcyBsb25nIGFzIHdl IGJhaWwKPiA+IG91dCB3aGVuIHdlIHJ1biBvdXQgb2YgYmF0Y2ggaXQgc2hvdWxkIGJlIGZpbmUu Cj4gCj4gUmlnaHQsIHRoaXMgd2FzIG1vc3RseSBjb252ZW5pZW5jZSBmb3Igd3JpdGluZyB0aGUg bG9vcCBib3VuZHMgLSBpdCB3YXMKPiBtb3JlIG9yIGxlc3MgYSBzaW1wbGUgY29udmVyc2lvbiBm cm9tIHRoZSBvbGQgaXRlcmF0b3IuCj4gCj4gPiBJIHNlZSB0aGVyZSdzIGEgYmF0Y2hfbGVuIGNo ZWNrIGF0IHRoZSBlbmQsIGJ1dCBJIGRvbid0IHNlZSB1cyBoYW5kbGluZwo+ID4gdGhlIGNhc2Ug d2hlbiB0aGUgdXNlciBhbHJlYWR5IGdpdmVzIHVzIHNvbWV0aGluZyB3aXRoIGJhdGNoX2xlbj09 MC4KPiA+IE1heWJlIHRoYXQgc2hvdWxkIGJlIHJlamVjdGVkIHNvbWV3aGVyZSBoaWdoZXIgdXA/ Cj4gCj4gYmF0Y2hfbGVuID0gMCBpcyBmaWx0ZXJlZCBvdXQgaW4gdGhlIGNhbGxlci4uLgoKT2gg eWVhaCwgc2VlIGl0IG5vdy4KCj4gIAo+ID4gQWxzbyB3aGF0IGhhcHBlbnMgaWYgd2UgZG9uJ3Qg ZmluZCBNSV9CQVRDSF9CVUZGRVJfRU5EIGJlZm9yZSBydW5uaW5nCj4gPiBvdXQgb2YgYmF0Y2g/ IE9oLCBJIHNlZSwgd2Ugc2V0IHJldD0tRUlOVkFMLCBhbmQgY2xlYXIgaXQgdG8gMCB3aGVuIHdl Cj4gPiBmaW5kIE1JX0JBVENIX0JVRkZFUl9FTkQuIFNvIHRoYXQgcGFydCBzZWVtcyB0byBiZSBm aW5lLgo+ID4gCj4gPiA+ICsJCXUzMiAqY21kLCAqcGFnZV9lbmQsICpiYXRjaF9lbmQ7Cj4gPiA+ ICsJCXUzMiB0aGlzOwo+ID4gPiArCj4gPiA+ICsJCXRoaXMgPSBiYXRjaF9sZW47Cj4gPiAKPiA+ IEkgd2FzIGEgYml0IGNvbmNlcm5lZCBhYm91dCBiYXRjaF9sZW4gJiAzLCBidXQgd2UgYWxyZWFk eSBjaGVjayBmb3IKPiA+IGJhdGNoX2xlbiY3PT0wIGluIGk5MTVfZ2VtX2NoZWNrX2V4ZWNidWZm ZXIoKSwgc28gaXQgc2hvdWxkIGJlIGdvb2QgaGVyZS4KPiAKPiBjbWRwYXJzZXJfYXNzZXJ0KGJh dGNoX2xlbiA+IDAgJiYgKGJhdGNoX2xlbiAmIDMpID09IDApOwo+IAo+IGFzIGRvY3VtZW50YXRp b24gZm9yIHRoZSBjb250cmFjdD8KCkkgd29uJ3QgaW5zaXN0LCBidXQgZmVlbCBmcmVlIHRvIGFk ZCBzb21ldGhpbmcgbGlrZSB0aGF0IGlmIHlvdQp3aXNoLgoKLS0gClZpbGxlIFN5cmrDpGzDpApJ bnRlbCBPVEMKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K SW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0 dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK