From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joonas Lahtinen Subject: Re: [PATCH v16 1/4] drm/i915: Introduce private PAT management Date: Wed, 13 Sep 2017 15:07:28 +0300 Message-ID: <1505304448.10157.4.camel@linux.intel.com> References: <1505292243-31117-1-git-send-email-zhi.a.wang@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1505292243-31117-1-git-send-email-zhi.a.wang@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Zhi Wang , intel-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org Cc: Rodrigo Vivi , Ben Widawsky List-Id: intel-gfx@lists.freedesktop.org T24gV2VkLCAyMDE3LTA5LTEzIGF0IDE2OjQ0ICswODAwLCBaaGkgV2FuZyB3cm90ZToKPiBUaGUg cHJpdmF0ZSBQQVQgbWFuYWdlbWVudCBpcyB0byBzdXBwb3J0IFBQQVQgZW50cnkgbWFuaXB1bGF0 aW9uLiBUd28KPiBBUElzIGFyZSBpbnRyb2R1Y2VkIGZvciBkeW5hbWljYWxseSBtYW5hZ2luZyBQ UEFUIGVudHJpZXM6IGludGVsX3BwYXRfZ2V0Cj4gYW5kIGludGVsX3BwYXRfcHV0Lgo+IAo+IGlu dGVsX3BwYXRfZ2V0IHdpbGwgc2VhcmNoIGZvciBhbiBleGlzdGluZyBQUEFUIGVudHJ5IHdoaWNo IHBlcmZlY3RseQo+IG1hdGNoZXMgdGhlIHJlcXVpcmVkIFBQQVQgdmFsdWUuIElmIG5vdCwgaXQg d2lsbCB0cnkgdG8gYWxsb2NhdGUgYSBuZXcKPiBlbnRyeSBpZiB0aGVyZSBpcyBhbnkgYXZhaWxh YmxlIFBQQVQgaW5kZXhzLCBvciByZXR1cm4gYSBwYXJ0aWFsbHkKPiBtYXRjaGVkIFBQQVQgZW50 cnkgaWYgdGhlcmUgaXMgbm8gYXZhaWxhYmxlIFBQQVQgaW5kZXhlcy4KPiAKPiBpbnRlbF9wcGF0 X3B1dCB3aWxsIHB1dCBiYWNrIHRoZSBQUEFUIGVudHJ5IHdoaWNoIGNvbWVzIGZyb20KPiBpbnRl bF9wcGF0X2dldC4gSWYgaXQncyBkeW5hbWljYWxseSBhbGxvY2F0ZWQsIHRoZSByZWZlcmVuY2Ug Y291bnQgd2lsbAo+IGJlIGRlY3JlYXNlZC4gSWYgdGhlIHJlZmVyZW5jZSBjb3VudCB0dXJucyBp bnRvIHplcm8sIHRoZSBQUEFUIGluZGV4IGlzCj4gZnJlZWQgYWdhaW4uCj4gCj4gQmVzaWRlcywg YW5vdGhlciB0d28gY2FsbGJhY2tzIGFyZSBpbnRyb2R1Y2VkIHRvIHN1cHBvcnQgdGhlIHByaXZh dGUgUEFUCj4gbWFuYWdlbWVudCBmcmFtZXdvcmsuIE9uZSBpcyBwcGF0LT51cGRhdGVfaHcoKSwg d2hpY2ggd3JpdGVzIHRoZSBQUEFUCj4gY29uZmlndXJhdGlvbnMgaW4gcHBhdC0+ZW50cmllcyBp bnRvIEhXLiBBbm90aGVyIG9uZSBpcyBwcGF0LT5tYXRjaCwgd2hpY2gKPiB3aWxsIHJldHVybiBh IHNjb3JlIHRvIHNob3cgaG93IHR3byBQUEFUIHZhbHVlcyBtYXRjaCB3aXRoIGVhY2ggb3RoZXIu Cj4gCj4gdjE2Ogo+IAo+IC0gRml4IGEgYnVnIGluIFBQQVQgbWF0Y2ggZnVuY3Rpb24gb2YgQkRX LiAoSm9vbmFzKQo+IAo+IHYxNToKPiAKPiAtIFJlZmluZSBzb21lIGNvZGUgZmxvdy4gKEpvb25h cykKPiAKPiB2MTI6Cj4gCj4gLSBGaXggYSBwcm9ibGVtICJub3QgcmV0dXJuaW5nIHRoZSBlbnRy eSBvZiBiZXN0IHNjb3JlIi4gKFpoZW55dSkKPiAKPiB2NzoKPiAKPiAtIEtlZXAgYWxsIHRoZSBy ZWdpc3RlciB3cml0ZXMgdW5jaGFuZ2VkIGluIHRoaXMgcGF0Y2guIChKb29uYXMpCj4gCj4gdjY6 Cj4gCj4gLSBBZGRyZXNzIGFsbCBjb21tZW50cyBmcm9tIENocmlzOgo+IGh0dHA6Ly93d3cuc3Bp bmljcy5uZXQvbGlzdHMvaW50ZWwtZ2Z4L21zZzEzNjg1MC5odG1sCj4gCj4gLSBBZGRyZXNzIGFs bCBjb21tZW50cyBmcm9tIEpvb25hczoKPiBodHRwOi8vd3d3LnNwaW5pY3MubmV0L2xpc3RzL2lu dGVsLWdmeC9tc2cxMzY4NDUuaHRtbAo+IAo+IHY1Ogo+IAo+IC0gQWRkIGNoZWNrIGFuZCB3YXJu bmluZ3MgZm9yIHRob3NlIHBsYXRmb3JtcyB3aGljaCBkb24ndCBoYXZlIFBQQVQuCj4gCj4gdjM6 Cj4gCj4gLSBJbnRyb2R1Y2UgZGlydHkgYml0bWFwIGZvciBQUEFUIHJlZ2lzdGVycy4gKENocmlz KQo+IC0gQ2hhbmdlIHRoZSBuYW1lIG9mIHRoZSBwb2ludGVyICJkZXZfcHJpdiIgdG8gImk5MTUi LiAoQ2hyaXMpCj4gLSBpbnRlbF9wcGF0X3tnZXQsIHB1dH0gcmV0dXJucy90YWtlcyBhIGNvbnN0 IGludGVsX3BwYXRfZW50cnkgKi4gKENocmlzKQo+IAo+IHYyOgo+IAo+IC0gQVBJIHJlLWRlc2ln bi4gKENocmlzKQo+IAo+IFNpZ25lZC1vZmYtYnk6IFpoaSBXYW5nIDx6aGkuYS53YW5nQGludGVs LmNvbT4KPiBDYzogQmVuIFdpZGF3c2t5IDxiZW5qYW1pbi53aWRhd3NreUBpbnRlbC5jb20+Cj4g Q2M6IFJvZHJpZ28gVml2aSA8cm9kcmlnby52aXZpQGludGVsLmNvbT4KPiBDYzogQ2hyaXMgV2ls c29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+Cj4gQ2M6IEpvb25hcyBMYWh0aW5lbiA8am9v bmFzLmxhaHRpbmVuQGxpbnV4LmludGVsLmNvbT4KPiBSZXZpZXdlZC1ieTogQ2hyaXMgV2lsc29u IDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+ICN2Nwo+IFJldmlld2VkLWJ5OiBKb29uYXMgTGFo dGluZW4gPGpvb25hcy5sYWh0aW5lbkBsaW51eC5pbnRlbC5jb20+Cgo8U05JUD4KCj4gK3N0YXRp YyB1bnNpZ25lZCBpbnQgYmR3X3ByaXZhdGVfcGF0X21hdGNoKHU4IHNyYywgdTggZHN0KQo+ICt7 Cj4gKwl1bnNpZ25lZCBpbnQgc2NvcmUgPSAwOwo+ICsKPiArCS8qIENhY2hlIGF0dHJpYnV0ZSBo YXMgdG8gYmUgbWF0Y2hlZC4gKi8KPiArCWlmIChHRU44X1BQQVRfR0VUX0NBKHNyYykgIT0gR0VO OF9QUEFUX0dFVF9DQShkc3QpKQo+ICsJCXJldHVybiAwOwo+ICsKPiArCXNjb3JlICs9IDQ7Cj4g Kwo+ICsJaWYgKEdFTjhfUFBBVF9HRVRfVEMoc3JjKSA9PSBHRU44X1BQQVRfR0VUX1RDKGRzdCkp Cj4gKwkJc2NvcmUgKz0gMjsKPiArCj4gKwlpZiAoR0VOOF9QUEFUX0dFVF9BR0Uoc3JjKSA9PSBH RU44X1BQQVRfR0VUX0FHRShkc3QpKQo+ICsJCXNjb3JlICs9IDE7Cj4gKwo+ICsJaWYgKHNjb3Jl ID09IDMpCj4gKwkJcmV0dXJuIElOVEVMX1BQQVRfUEVSRkVDVF9NQVRDSDsKClRoaXMgc3RpbGwg bmVlZHMgdG8gY2hlY2sgZm9yIDcgdG8gdHJpZ2dlciB0aGUgZmFzdC1wYXRoLiBBCmZ1dHVyZS1w cm9vZiB3YXkgd291bGQgYmU7CgoJcmV0dXJuIHNjb3JlID49IDcgPyBJTlRFTF9QUEFUX1BFUkZF Q1RfTUFUQ0ggOgoJCQkgICAgc2NvcmU7CgpSZWdhcmRzLCBKb29uYXMKLS0gCkpvb25hcyBMYWh0 aW5lbgpPcGVuIFNvdXJjZSBUZWNobm9sb2d5IENlbnRlcgpJbnRlbCBDb3Jwb3JhdGlvbgpfX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFp bGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5m cmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK