From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Widawsky Subject: Re: [Intel-gfx] [PATCH 2/4] drm/cache: Try to be smarter about clflushing on x86 Date: Mon, 15 Dec 2014 11:54:04 -0800 Message-ID: <20141215195404.GA1398@bwidawsk.net> References: <1418526504-26316-1-git-send-email-benjamin.widawsky@intel.com> <1418526504-26316-3-git-send-email-benjamin.widawsky@intel.com> <20141214125941.GB32601@nuc-i3427.alporthouse.com> <548E5E3C.4060900@virtuousgeek.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <548E5E3C.4060900@virtuousgeek.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Jesse Barnes Cc: Intel GFX , Ben Widawsky , DRI Development List-Id: intel-gfx@lists.freedesktop.org T24gU3VuLCBEZWMgMTQsIDIwMTQgYXQgMDg6MDY6MjBQTSAtMDgwMCwgSmVzc2UgQmFybmVzIHdy b3RlOgo+IE9uIDEyLzE0LzIwMTQgNDo1OSBBTSwgQ2hyaXMgV2lsc29uIHdyb3RlOgo+ID5PbmUg b2YgdGhlIHRoaW5ncyB3YmludmQgaXMgY29uc2lkZXJlZCBldmlsIGZvciBpcyB0aGF0IGl0IGJs b2NrcyB0aGUKPiA+Q1BVIGZvciBhbiBpbmRldGVybWluYXRlIGFtb3VudCBvZiB0aW1lIC0gdXBz ZXR0aW5nIGxhdGVuY3kgY3JpdGNpYWwKPiA+YXNwZWN0cyBvZiB0aGUgT1MuIEZvciBleGFtcGxl LCB0aGUgeDg2L21tIGhhcyBzaW1pbGFyIGNvZGUgdG8gdXNlCj4gPndiaW52ZCBmb3IgbGFyZ2Ug Y2xmbHVzaGVzIHRoYXQgY2F1c2VkIGEgYml0IG9mIGNvbnRyb3ZlcnN5IHdpdGggUlQ6Cj4gPgo+ ID5odHRwOi8vbGludXgta2VybmVsLjI5MzUubjcubmFiYmxlLmNvbS9QQVRDSC14ODYtVXNlLWNs Zmx1c2gtaW5zdGVhZC1vZi13YmludmQtd2hlbmV2ZXItcG9zc2libGUtd2hlbi1jaGFuZ2luZy1t YXBwaW5nLXRkNDkzNzUxLmh0bWwKPiA+Cj4gPmFuZCBhbHNvIHRoZSB1c2Ugb2Ygd2JpbnZkIGlu IHRoZSBudmlkaWEgZHJpdmVyIGhhcyBhbHNvIGJlZW4gbm90ZWQgYXMKPiA+ZXZpbCBieSBSVCBm b2xrcy4KPiA+Cj4gPkhvd2V2ZXIgYXMgdGhlIHdiaW52ZCBzdGlsbCBleGlzdHMsIGl0IGNhbid0 IGJlIGFsbCB0aGF0IGJhZC4uLgoKVGhhdCBwYXRjaCBsb29rcyBlZXJpbHkgc2ltaWxhci4gSSBn dWVzcyBJIGFtIHNsaWdodGx5IGJldHRlciBpbiB0aGF0IEkgdGFrZSB0aGUKY2FjaGUgc2l6ZSBp bnRvIGFjY291bnQuCgo+IAo+IFllYWggdGhlcmUgYXJlIGRlZmluaXRlbHkgdHJhZGVvZmZzIGhl cmUuICBJbiB0aGlzIHBhcnRpY3VsYXIgY2FzZSwgd2UncmUKPiB0cnlpbmcgdG8gZmx1c2ggb3V0 IGEgfjE0ME0gb2JqZWN0IG9uIGV2ZXJ5IGZyYW1lLCB3aGljaCBqdXN0IHNlZW1zIHNpbGx5Lgo+ IAo+IFRoZXJlJ3MgZGVmaW5pdGVseSByb29tIGZvciBvcHRpbWl6YXRpb24gaW4gTWVzYSB0b287 IGF2b2lkaW5nIGEgbWFwcGluZwo+IHRoYXQgbWFya3MgYSBsYXJnZSBibyBhcyBkaXJ0eSB3b3Vs ZCBiZSBnb29kLCBidXQgaWYgd2UgaW1wcm92ZSB0aGUga2VybmVsCj4gaW4gdGhpcyBhcmVhLCBl dmVuIHNsb3BweSBhcHBzIGFuZCBleGlzdGluZyBiaW5hcmllcyB3aWxsIHNwZWVkIHVwLgo+IAo+ IE1heWJlIHdlIGNvdWxkIGFwcGx5IHRoaXMgb25seSBvbiAhbGxjIHN5c3RlbXMgb3Igc29tZXRo aW5nPyAgSSB3b25kZXIgaG93Cj4gbXVjaCB3YmludmQgcGVyZm9ybWFuY2UgdmFyaWVzIGFjcm9z cyBtaWNyb2FyY2hpdGVjdHVyZXM7IG1heWJlIFRob21hcydzCj4gaXNzdWUgaXNuJ3QgcmVhbGx5 IHJlbGV2YW50IGFueW1vcmUgKGF0IGxlYXN0IG9uZSBjYW4gaG9wZSkuCgpJIGFtIHByZXR0eSBz dXJlIGZyb20gdGhlIG1lc2EgcGVyc3BlY3RpdmUgd2UgZG8gbm90IGhpdCB0aGlzIHBhdGggb24g bm9uLWxsYwpzeXN0ZW1zIGJlY2F1c2Ugd2UgZW5kIHVwIHdpdGggYSBsaW5lYXIgYnVmZmVyLCBh bmQganVzdCBDUFUgbWFwIHRoZSBidWZmZXIuIEluCmFkZGl0aW9uIHRvIHRyeWluZyB0byBtYW5h Z2UgdGhlIGNhY2hlIGRpcnRpbmVzcyBvdXJzZWx2ZXMsIHRoZSBjdXJyZW50IGNvZGUKd2hpY2gg ZGV0ZXJtaW5lcyBob3cgaXQgd2FudHMgdG8gbWFuYWdlIHN1YnJlZ2lvbnMgd2l0aGluIGxhcmdl IHRleHR1cmVzIGNvdWxkCnByb2JhYmx5IHVzZSBzb21lIGV5ZXMgdG8gbWFrZSBzdXJlIHRoZSBv cmRlciBpbiB3aGljaCB3ZSBkZWNpZGUgdGhlIHZhcmlvdXMKZmFsbGJhY2tzIG1ha2VzIHNlbnNl IGZvciBhbGwgc2l6ZXMsIGFuZCBhbGwgcGxhdGZvcm1zLiBJIC90aGluay8gd2UgY2FuIGRvCmJl dHRlciwgYnV0IHdoZW4gSSB3YXMgd3JpdGluZyBhIHBhdGNoLCB0aGUgY29kZSBnb3QgbWVzc3kg ZmFzdC4KCj4gCj4gV2hlbiBkaWdnaW5nIGludG8gdGhpcywgSSBmb3VuZCB0aGF0IGFuIG9wdGlt aXphdGlvbiB0byByZW1vdmUgdGhlIElQSSBmb3IKPiB3YmludmQgd2FzIGNsb2JiZXJlZCBkdXJp bmcgYSBtZXJnZTsgbWF5YmUgdGhhdCBzaG91bGQgYmUgcmVzdXJyZWN0ZWQgdG9vLgo+IFN1cmVs eSBhIHNpbmdsZSwgZ2xvYmFsIHdiaW52ZCBpcyBzdWZmaWNpZW50OyB3ZSBkb24ndCBuZWVkIHRv IGRvIG5fY3B1c14yCj4gd2JpbnZkICsgdGhlIGFzc29jaWF0ZWQgaW52YWxpZGF0aW9uIGJ1cyBz aWduYWxzIGhlcmUuLi4KCklmIHRoaXMgYWN0dWFsbHkgd29ya3MsIHRoZW4gdGhlcmUgc2hvdWxk IGJlIG5vIENQVSBzdGFsbCBhdCBhbGwuCgo+IAo+IEFsdGVybmF0ZWx5LCB3ZSBjb3VsZCBpbnNl cnQgc29tZSBkZWxheXMgaW50byB0aGlzIHBhdGgganVzdCB0byBtYWtlIGl0Cj4gZXh0cmEgY2xl YXIgdG8gdXNlcnNwYWNlIHRoYXQgdGhleSByZWFsbHkgc2hvdWxkbid0IGJlIGhpdHRpbmcgdGhp cyBpbiB0aGUKPiBjb21tb24gY2FzZSAoYW5kIHByb3ZpZGUgc29tZSBhZGRpdGlvbmFsIGludGVy ZmFjZXMgdG8gbGV0IHRoZW0gYXZvaWQgaXQgYnkKPiBhbGxvd2luZyBmbHVzaGluZyBhbmQgZGly dHkgbWFuYWdlbWVudCBpbiB1c2Vyc3BhY2UpLgoKSSBkb24ndCB0aGluayBzdWNoIGFuIGV4dHJl bWUgc3RlcCBpcyBuZWVkZWQuIElmIHdlIHJlYWxseSBkb24ndCBuZWVkIHRoZSBJUEksCnRoZW4g SSB0aGluayB0aGlzIHBhdGggY2FuIG9ubHkgYmUgZmFzdGVyIHRoYW4gQ0xGTFVTSC4KCj4gCj4g SmVzc2UKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJp LWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHA6 Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwK