From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [Intel-gfx] [PATCH] drm/i915: Do NOT skip the first 4k of stolen memory for pre-allocated buffers Date: Wed, 4 Apr 2018 18:50:16 +0300 Message-ID: <20180404155016.GF5453@intel.com> References: <20180330122715.18209-1-hdegoede@redhat.com> <152241303027.28244.1808321725923870922@mail.alporthouse.com> <57542ba3-b9d3-7603-f5d6-a3e9addd661b@redhat.com> <152241386519.28244.4073756569022574057@mail.alporthouse.com> <89d3f73e-5885-0716-5f27-c277690ba307@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <89d3f73e-5885-0716-5f27-c277690ba307@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Hans de Goede Cc: intel-gfx , dri-devel@lists.freedesktop.org, Rodrigo Vivi List-Id: dri-devel@lists.freedesktop.org T24gRnJpLCBNYXIgMzAsIDIwMTggYXQgMDQ6MjY6NTNQTSArMDIwMCwgSGFucyBkZSBHb2VkZSB3 cm90ZToKPiBIaSwKPiAKPiBPbiAzMC0wMy0xOCAxNToyNSwgSGFucyBkZSBHb2VkZSB3cm90ZToK PiA+IEhpLAo+ID4gCj4gPiBPbiAzMC0wMy0xOCAxNDo0NCwgQ2hyaXMgV2lsc29uIHdyb3RlOgo+ ID4+IFF1b3RpbmcgSGFucyBkZSBHb2VkZSAoMjAxOC0wMy0zMCAxMzozNzo0MCkKPiA+Pj4gSGks Cj4gPj4+Cj4gPj4+IE9uIDMwLTAzLTE4IDE0OjMwLCBDaHJpcyBXaWxzb24gd3JvdGU6Cj4gPj4+ PiBRdW90aW5nIEhhbnMgZGUgR29lZGUgKDIwMTgtMDMtMzAgMTM6Mjc6MTUpCj4gPj4+Pj4gQmVm b3JlIHRoaXMgY29tbWl0IHRoZSBXYVNraXBTdG9sZW5NZW1vcnlGaXJzdFBhZ2Ugd29ya2Fyb3Vu ZCBjb2RlIHdhcwo+ID4+Pj4+IHNraXBwaW5nIHRoZSBmaXJzdCA0ayBieSBwYXNzaW5nIDQwOTYg YXMgc3RhcnQgb2YgdGhlIGFkZHJlc3MgcmFuZ2UgcGFzc2VkCj4gPj4+Pj4gdG8gZHJtX21tX2lu aXQoKS4gVGhpcyBtZWFucyB0aGF0IGNhbGxpbmcgZHJtX21tX3Jlc2VydmVfbm9kZSgpIHRvIHRy eSBhbmQKPiA+Pj4+PiByZXNlcnZlIHRoZSBmaXJtd2FyZSBmcmFtZWJ1ZmZlciBzbyB0aGF0IHdl IGNhbiBpbmhlcml0IGl0IHdvdWxkIGFsd2F5cwo+ID4+Pj4+IGZhaWwsIGFzIHRoZSBmaXJtd2Fy ZSBmcmFtZWJ1ZmZlciBzdGFydHMgYXQgYWRkcmVzcyAwLgo+ID4+Pj4+Cj4gPj4+Pj4gQ29tbWl0 IGQ0MzUzNzYxMDQ3MCAoImRybS9pOTE1OiBza2lwIHRoZSBmaXJzdCA0ayBvZiBzdG9sZW4gbWVt b3J5IG9uCj4gPj4+Pj4gZXZlcnl0aGluZyA+PSBnZW44Iikgc2F5cyBpbiBpdHMgY29tbWl0IG1l c3NhZ2U6ICJUaGlzIGlzIGNvbmZpcm1lZCB0byBmaXgKPiA+Pj4+PiBTa3lsYWtlIHNjcmVlbiBm bGlja2VyaW5nIGlzc3VlcyAocHJvYmFibHkgY2F1c2VkIGJ5IHRoZSBmYWN0IHRoYXQgd2UKPiA+ Pj4+PiBpbml0aWFsaXplZCBhIHJpbmcgaW4gdGhlIGZpcnN0IHBhZ2Ugb2Ygc3RvbGVuLCBidXQg SSBkaWRuJ3QgMTAwJSBjb25maXJtCj4gPj4+Pj4gdGhpcyB0aGVvcnkpLiIKPiA+Pj4+Pgo+ID4+ Pj4+IFdoaWNoIHN1Z2dlc3RzIHRoYXQgaXQgaXMgc2FmZSB0byB1c2UgdGhlIGZpcnN0IHBhZ2Ug Zm9yIGEgbGluZWFyCj4gPj4+Pj4gZnJhbWVidWZmZXIgYXMgdGhlIGZpcm13YXJlIGlzIGRvaW5n Lgo+ID4+Pj4+Cj4gPj4+Pj4gVGhpcyBjb21taXQgYWx3YXlzIHBhc3NlcyAwIGFzIHN0YXJ0IHRv IGRybV9tbV9pbml0KCkgYW5kIHdvcmtzIGFyb3VuZAo+ID4+Pj4+IFdhU2tpcFN0b2xlbk1lbW9y eUZpcnN0UGFnZSBpbiBpOTE1X2dlbV9zdG9sZW5faW5zZXJ0X25vZGVfaW5fcmFuZ2UoKQo+ID4+ Pj4+IGJ5IGluc3VyaW5nIHRoZSBzdGFydCBhZGRyZXNzIHBhc3NlZCBieSB0byBkcm1fbW1faW5z ZXJ0X25vZGVfaW5fcmFuZ2UoKQo+ID4+Pj4+IGlzIGFsd2F5cyA0ayBvciBtb3JlLiBBbGwgZW50 cnkgcG9pbnRzIHRvIGk5MTVfZ2VtX3N0b2xlbi5jIGdvIHRocm91Z2gKPiA+Pj4+PiBpOTE1X2dl bV9zdG9sZW5faW5zZXJ0X25vZGVfaW5fcmFuZ2UoKSwgc28gdGhhdCBhbnkgbmV3bHkgYWxsb2Nh dGVkCj4gPj4+Pj4gb2JqZWN0cyBzdWNoIGFzIHJpbmctYnVmZmVycyB3aWxsIG5vdCBiZSBhbGxv Y2F0ZWQgaW4gdGhlIGZpcnN0IDRrLgo+ID4+Pj4+Cj4gPj4+Pj4gVGhlIG9uZSBleGNlcHRpb24g aXMgaTkxNV9nZW1fb2JqZWN0X2NyZWF0ZV9zdG9sZW5fZm9yX3ByZWFsbG9jYXRlZCgpCj4gPj4+ Pj4gd2hpY2ggZGlyZWN0bHkgY2FsbHMgZHJtX21tX3Jlc2VydmVfbm9kZSgpIHdoaWNoIG5vdyB3 aWxsIGJlIGFibGUgdG8KPiA+Pj4+PiB1c2UgdGhlIGZpcnN0IDRrLgo+ID4+Pj4+Cj4gPj4+Pj4g VGhpcyBmaXhlcyB0aGUgaTkxNSBkcml2ZXIgbm8gbG9uZ2VyIGJlaW5nIGFibGUgdG8gaW5oZXJp dCB0aGUgZmlybXdhcmUKPiA+Pj4+PiBmcmFtZWJ1ZmZlciBvbiBnZW44Kywgd2hpY2ggZml4ZXMg dGhlIHZpZGVvIG91dHB1dCBjaGFuZ2luZyBmcm9tIHRoZQo+ID4+Pj4+IHZlbmRvciBsb2dvIHRv IGEgYmxhY2sgc2NyZWVuIGFzIHNvb24gYXMgdGhlIGk5MTUgZHJpdmVyIGlzIGxvYWRlZAo+ID4+ Pj4+IChvbiBzeXN0ZW1zIHdpdGhvdXQgZmJjb24pLgo+ID4+Pj4KPiA+Pj4+IFdlJ3ZlIGJlZW4g dG9sZCBieSB0aGUgSFcgZ3V5cyBub3QgdG8gdXNlIHRoZSBmaXJzdCBwYWdlLiAoVGhhdCdzIG15 Cj4gPj4+PiB1bmRlcnN0YW5kaW5nIGZyb20gZXZlcnkgdGltZSB0aGlzIGdldHMgcXVlc3Rpb25l ZC4pCj4gPj4+Cj4gPj4+IFlldCB0aGUgR09QIGlzIGhhcHBpbHkgdXNpbmcgdGhlIGZpcnN0IHBh Z2UuIEkgdGhpbmsgd2UgbWF5IG5lZWQgdG8gbWFrZQo+ID4+PiBhIGRpZmZlcmVuY2UgaGVyZSBi ZXR3ZWVuIHRoZSBHUFUgbm90IHVzaW5nIHRoZSBmaXJzdCBwYWdlIGFuZCB0aGUKPiA+Pj4gZGlz cGxheSBlbmdpbmUvcGlwZWxpbmUgbm90IHVzaW5nIHRoZSBmaXJzdCBwYWdlLiBOb3RlIHRoYXQg bXkgcGF0Y2gKPiA+Pj4gb25seSBpbmZsdWVuY2VzIHRoZSBpbmhlcml0aW5nIG9mIHRoZSBpbml0 aWFsIGZyYW1lYnVmZmVyIGFzIGFsbG9jYXRlZAo+ID4+PiBieSB0aGUgR09QLiBJdCBkb2VzIG5v dCBpbmZsdWVuY2UgYW55IG90aGVyIGFsbG9jYXRpb25zIGZyb20gdGhlCj4gPj4+IHJlc2VydmVk IHJhbmdlLCB0aG9zZSB3aWxsIHN0aWxsIGFsbCBhdm9pZCB0aGUgZmlyc3QgcGFnZS4KPiA+Pj4K PiA+Pj4gV2l0aG91dCB0aGlzIHBhdGNoIGZhc3Rib290IC8gZmxpY2tlcmZyZWUgc3VwcG9ydCBp cyBlc3NlbnRpYWxseSBicm9rZW4KPiA+Pj4gb24gYW55IGdlbjgrIGhhcmR3YXJlIGdpdmVuIHRo YXQgb25lIG9mIHRoZSBnb2FscyBvZiBhdG9taWMgaXMgdG8gYmUKPiA+Pj4gYWJsZSB0byBkbyBm bGlja2VyZnJlZSB0cmFuc2l0aW9ucyBJIHRoaW5rIHRoYXQgdGhpcyB3YXJyYW50cyBhIGNsb3Nl cgo+ID4+PiBsb29rIHRoZW4ganVzdCBzaW1wbHkgc2F5aW5nIG5ldmVyIHVzZSB0aGUgZmlyc3Qg cGFnZS4KPiA+Pgo+ID4+IFRoZSBjb25jZXJuIGlzIHdoYXQgZWxzZSAoaS5lLiBub3RoaW5nIHRo YXQgd2UgYWxsb2NhdGVkIG91cnNlbHZlcykgdGhhdAo+ID4+IG1heSBiZSBpbiB0aGUgZmlyc3Qg cGFnZS4uLgo+ID4gCj4gPiBHaXZlbiB0aGF0IHRoZSBHT1AgaGFzIHB1dCBpdHMgZnJhbWVidWZm ZXIgdGhlcmUgYXQgbGVhc3QgYXQgYm9vdCB0aGVyZQo+ID4gaXMgbm90aGluZyB0aGVyZSwgb3Ro ZXJ3aXNlIGl0IHdvdWxkIHNob3cgdXAgb24gdGhlIGRpc3BsYXkuCj4gPiAKPiA+IFdlIGhhdmUg YSB3aG9sZSBidW5jaCBvZiBjb2RlIHRvIGluaGVyaXQgdGhlIEJJT1MgZmIgaW4gaW50ZWxfZGlz cGxheS5jCj4gPiBhbmQgQUZBSUsgdGhhdCBjb2RlIGlzIHRoZXJlIGJlY2F1c2UgdGhpcyBpbmhl cml0aW5nIHRoZSBCSU9TIGZiIGlzCj4gPiBkZWVtZWQgYW4gaW1wb3J0YW50IGZlYXR1cmUuIFNv IEknbSBub3QgaGFwcHkgYXQgYWxsIHdpdGggdGhlIGhhbmR3YXZ5Cj4gPiBiZXN0IHRvIG5vdCB0 b3VjaCBpdCBhbnN3ZXIgSSdtIGdldHRpbmcgdG8gdGhpcyBwYXRjaC4KPiA+IAo+ID4gVW5sZXNz IHRoZXJlIGFyZSBzb21lIGNsZWFyIGFuc3dlciBmcm9tIHRoZSBoYXJkd2FyZSBmb2xrcyB3aGlj aCBzcGVjaWZpY2FsbHkKPiA+IHNheSB3ZSBjYW5ub3QgcHV0IGEgZnJhbWVidWZmZXIgdGhlcmUg KGFuZCB0aGVuIHdoeSBpcyB0aGUgR09QIGRvaW5nIGl0PykKPiA+IHRoZW4gSSBiZWxpZXZlIHRo YXQgdGhlIGJlc3Qgd2F5IGZvcndhcmQgaGVyZSBpcyB0byBnZXQgdmFyaW91cyBwZW9wbGUgdG8K PiA+IHRlc3Qgd2l0aCB0aGlzIHBhdGNoIGFuZCB0aGUgYmVzdCB3YXkgdG8gZG8gdGhhdCBpcyBw cm9iYWJseSB0byBwdXQgaXQKPiA+IGluIG5leHQuIE5vdGUgSSBkZWxpYmVyYXRlbHkgZGlkIG5v dCBhZGQgYSBDYyBzdGFibGUuCj4gCj4gVG8gZWxhYm9yYXRlIG9uIHRoaXMsIHRoZSBleGNsdWRp bmcgb2YgdGhlIGZpcnN0IDRrIG9mIHRoZSBzdG9sZW4gbWVtb3J5Cj4gcmVnaW9uIGNhdXNlcyBp bnRlbF9hbGxvY19pbml0aWFsX3BsYW5lX29iaigpIGZyb20gaW50ZWxfZGlzcGxheS5jIHRvIGZh aWwsCj4gd2hpY2ggaW4gdHVybiBjYXVzZXMgaW50ZWxfZmluZF9pbml0aWFsX3BsYW5lX29iaigp IHRvIGNhbGwKPiBpbnRlbF9wbGFuZV9kaXNhYmxlX25vYXRvbWljKGludGVsX2NydGMsIGludGVs X3BsYW5lKTsgd2hpY2ggdGVtcG9yYXJpbHkKPiBjb21wbGV0ZWx5IHR1cm5zIG9mZiB0aGUgZGlz cGxheSB3aGljaCBsZWFkcyB0byBhIHZlcnkgdWdseSBmbGlja2VyaW5nCj4gb2YgdGhlIGRpc3Bs YXkgYXQgYm9vdCAoYXMgd2VsbCBhcyByZXBsYWNpbmcgdGhlIHZlbmRvciBsb2dvIHdpdGggYQo+ IGJsYWNrIHNjcmVlbikuCj4gCj4gSSB0aGluayB3ZSBjYW4gYWxsIGFncmVlIHRoYXQgdGhpcyBi ZWhhdmlvciBpcyB1bmRlc2lyYWJsZSBhbmQgZXZlbiBhCj4gcmVncmVzc2lvbiBpbiBiZWhhdmlv ciBjYXVzZWQgYnkgdGhlIGZpeCB0byBleGNsdWRlIHRoZSBmaXJzdCA0ay4KPiAKPiBDaHJpcywg aWYgbXkgcGF0Y2ggaXMgbm90IGFuIGFjY2VwdGFibGUgd2F5IHRvIGZpeCB0aGlzLCB0aGVuIGhv dyBkbyB5b3UKPiBzdWdnZXN0IHRoYXQgd2UgZml4IHRoaXM/Cj4gCj4gRGlnZ2luZyBhIGJpdCBk ZWVwZXIgSSBmb3VuZCB0aGlzOgo+IAo+IGh0dHBzOi8vMDEub3JnL3NpdGVzL2RlZmF1bHQvZmls ZXMvZG9jdW1lbnRhdGlvbi9pbnRlbC1nZngtcHJtLW9zcmMta2JsLXZvbDE2LXdvcmthcm91bmRz LnBkZgo+IAo+IFdoaWNoIHNheXM6Cj4gCj4gIldhU2tpcFN0b2xlbk1lbW9yeUZpcnN0UGFnZToK PiAKPiBXQSB0byBza2lwIHRoZSBmaXJzdCBwYWdlIG9mIHN0b2xlbgo+IG1lbW9yeSBkdWUgdG8g c3BvcmFkaWMgSFcgd3JpdGUgb24gKkNTIElkbGUiCj4gCj4gQW5kIGFsc28gYWJvdXQgRkJDOgo+ IAo+ICJGaXJzdCBsaW5lIG9mIEZCQyBnZXR0aW5nIGNvcnJ1cHRlZCB3aGVuIEZCQwo+IGNvbXBy ZXNzZWQgZnJhbWUgYnVmZmVyIG9mZnNldCBpcyBwcm9ncmFtbWVkIHRvCj4gemVyby4gQ29tbWFu ZCBzdHJlYW1lcnMgYXJlIGRvaW5nIGZsdXNoIHdyaXRlcyB0bwo+IGJhc2Ugb2Ygc3RvbGVuLgo+ IFdBOiBOZXcgcmVzdHJpY3Rpb24gdG8gcHJvZ3JhbSBGQkMgY29tcHJlc3NlZAo+IGZyYW1lIGJ1 ZmZlciBvZmZzZXQgdG8gYXQgbGVhc3QgNEtCLiIKPiAKPiBTbyB1c2luZyB0aGUgZmlyc3QgNGtC IGZvciB0aGUgKmZyYW1lYnVmZmVyKiBhcyBkb25lIGJ5IHRoZSBHT1Agd2lsbAo+IG5vdCBjYXVz ZSBhbnkgbWFqb3IgcHJvYmxlbXMgKGZyZWV6ZXMsIGhhbmdzLCBldGMuKSwgYW5kIGNvbW1pdAo+ IGQ0MzUzNzYxMDQ3MCAoImRybS9pOTE1OiBza2lwIHRoZSBmaXJzdCA0ayBvZiBzdG9sZW4gbWVt b3J5IG9uCj4gZXZlcnl0aGluZyA+PSBnZW44Iikgd2FzIGNvcnJlY3QgaW4gZGVkdWNpbmcgdGhh dCB0aGUgcHJvYmxlbSB3YXMKPiBsaWtlbHkgdGhhdCBzb21lICp2aXRhbCogaW5mb3JtYXRpb24g d2FzIGJlaW5nIHN0b3JlZCBpIHRoZSBmaXJzdCA0awo+IGFuZCB0aGF0IGdvIG92ZXJ3cml0dGVu Lgo+IAo+IEJ1dCB0aGUgY29udGVudHMgb2YgdGhlIChmaXJzdCBsaW5lcyBvZikgdGhlIGZyYW1l YnVmZmVyIG1heSBiZWNvbWUKPiBjb3JydXB0ZWQgb25jZSB3ZSBhY3R1YWxseSBzdGFydCB1c2lu ZyB0aGUgY29tbWFuZC1zdHJlYW1lcnMsIHdoaWNoCj4gaXMgc3RpbGwgdmVyeSBtdWNoIG5vdCB3 YW50ZWQuCj4gCj4gSW4gcHJhY3RpY2UgWG9yZyBvciBXYXlsYW5kIHdpbGwgbGlrZWx5IGhhdmUg c2V0dXAgYW5vdGhlciBmcmFtZWJ1ZmZlcgo+IGJ5IHRoZSB0aW1lIHRoZSBjb21tYW5kLXN0cmVh bWVycyB3aWxsIHN0YXJ0IHRvIGdldCB1c2VkLgo+IAo+IEFsdGVybmF0aXZlbHkgd2UgY291bGQg c3RhcnQgd2l0aCBpbmhlcml0aW5nIHRoZSBCSU9TIGZyYW1lYnVmZmVyCj4gKGFzIG15IHBhdGNo IGFsbG93cykgc28gdGhhdCB3ZSBkb24ndCBnZXQgdGhlIGZsaWNrZXIgYW5kIHRoZW4gc29vbgo+ IGFmdGVyd2FyZHMgYXRvbWljYWxseSB0cmFuc2l0IHRvIGEgbmV3IGZyYW1lYnVmZmVyICh3aGlj aCBzaG91bGQKPiBjb250YWluIGEgY29weSBvZiB0aGUgQklPUyBmYiBjb250ZW50cykgYXQgYSBk aWZmZXJlbnQgbG9jYXRpb24uCgpXaGF0IEkgc3VnZ2VzdGVkIGxvbmcgYWdvIHdhcyB0byBjb3B5 IGp1c3QgdGhlIGZpcnN0IHBhZ2UgYW5kIGFkanVzdCB0aGUKc2cgbGlzdC4gQnV0IEknbSBub3Qg c3VyZSBpZiBvdXIgc3RvbGVuIGdlbSBjb2RlIHdvdWxkIGJlIGhhcHB5IHdpdGggYW4Kc2cgbGlz dCB3aXRoIHR3byBlbnRyaWVzIGluc3RlYWQgb2Ygb25lLgoKLS0gClZpbGxlIFN5cmrDpGzDpApJ bnRlbCBPVEMKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K ZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0 dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg==