From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paulo Zanoni Subject: Re: [PATCH 1/3] drm/i915: Check if the stolen memory "reserved" area is enabled or not Date: Tue, 14 Nov 2017 18:44:51 -0200 Message-ID: <1510692291.22559.17.camel@intel.com> References: <20171102151737.23336-1-ville.syrjala@linux.intel.com> <1510690361.22559.5.camel@intel.com> <20171114203443.GQ10981@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7B7916E29F for ; Tue, 14 Nov 2017 20:45:13 +0000 (UTC) In-Reply-To: <20171114203443.GQ10981@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Ville =?ISO-8859-1?Q?Syrj=E4l=E4?= Cc: Tomi Sarvela , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org RW0gVGVyLCAyMDE3LTExLTE0IMOgcyAyMjozNCArMDIwMCwgVmlsbGUgU3lyasOkbMOkIGVzY3Jl dmV1Ogo+IE9uIFR1ZSwgTm92IDE0LCAyMDE3IGF0IDA2OjEyOjQxUE0gLTAyMDAsIFBhdWxvIFph bm9uaSB3cm90ZToKPiA+IEVtIFF1aSwgMjAxNy0xMS0wMiDDoHMgMTc6MTcgKzAyMDAsIFZpbGxl IFN5cmphbGEgZXNjcmV2ZXU6Cj4gPiA+IEZyb206IFZpbGxlIFN5cmrDpGzDpCA8dmlsbGUuc3ly amFsYUBsaW51eC5pbnRlbC5jb20+Cj4gPiA+IAo+ID4gPiBBcHBhcmVudGx5IHRoZXJlIGFyZSBz b21lIG1hY2hpbmVzIHRoYXQgcHV0IHNlbWktc2Vuc2libGUgbG9va2luZwo+ID4gPiB2YWx1ZXMK PiA+ID4gaW50byB0aGUgc3RvbGVuICJyZXNlcnZlZCIgYmFzZSBhbmQgc2l6ZSwgZXhjZXB0IHRo b3NlIHZhbHVlcyBhcmUKPiA+ID4gYWN0dWFsbHkKPiA+ID4gb3V0c2lkZSB0aGUgc3RvbGVuIG1l bW9yeS4gVGhlcmUgaXMgYSBiaXQgaW4gdGhlIHJlZ2lzdGVyIHdoaWNoCj4gPiA+IHN1cHBvc2Vk bHkgY291bGQgdGVsbCB1cyB3aGV0aGVyIHRoZSByZXNlcnZlZCBhcmVhIGlzIGV2ZW4KPiA+ID4g ZW5hYmxlZCBvcgo+ID4gPiBub3QuIExldCdzIGNoZWNrIGZvciB0aGF0IGJlZm9yZSB3ZSBnbyB0 cnVzdGluZyB0aGUgYmFzZSBhbmQKPiA+ID4gc2l6ZS4KPiA+IAo+ID4gSWYgdGhpcyBpcyBzdWNo IGEgcHJvYmxlbSBzaW5jZSBnNHgsIHdoeSBkaWRuJ3Qgd2Ugc3BvdCBpdCBlYXJsaWVyPwo+ID4g SXQKPiA+IHdvdWxkIGJlIG5pY2UgaWYgeW91IGNvdWxkIGV4cGxhaW4gaW4gdGhlIGNvbW1pdCBt ZXNzYWdlIChvciBhdAo+ID4gbGVhc3QKPiA+IGluIHRoaXMgZW1haWwpIHdoYXQgYXJlIHRoZSBj b25zZXF1ZW5jZXMgeW91J3JlIHNlZWluZyB0aGF0IG1hZGUKPiA+IHlvdQo+ID4gcmVhbGl6ZSBh Ym91dCB0aGlzIHByb2JsZW0uIERpZCBzb21ldGhpbmcgYWN0dWFsbHkgZXhwbG9kZT8gSSdtCj4g PiBnZW51aW5lbHkgY3VyaW91cy4KPiAKPiBDSSBpcyBnZXR0aW5nIHBpbmctcGluZyBvbiB0aGUg U05CIHNoYXJkcy4gQXBwYXJlbnRseSB0aGUgQklPUyBsZWF2ZXMKPiBzb21lIGdhcmJhZ2UgaW4g dGhlIHRoZSBiYXNlK3NpemUgZmllbGRzIG9mIHRoZSByZWdpc3RlciwgYW5kCj4gc29tZXRpbWVz Cj4gdGhhdCByZXN1bHRzIGluIHRoZSByZXNlcnZlZCBhcmVhIGxhbmRpbmcgaW5zaWRlIHN0b2xl biAoYXQgd2hpY2gKPiBwb2ludAo+IHdlIGp1c3QgcmVkdWNlIHRoZSBzaXplIG9mIHN0b2xlbiBh bmQgY29udGludWUpLCBhbmQgc29tZXRpbWVzIGl0Cj4gbGFuZHMKPiBzb21ld2hlcmUgb3V0c2lk ZSAoYXQgd2hpY2ggcG9pbnQgd2UganVzdCBkaXNhYmxlIHN0b2xlbiBlbnRpcmVseSkuCj4gSGVu Y2UgdGhlIEZCQyB0ZXN0cyBzb21ldGltZXMgZmluZCBlbm91Z2ggc3RvbGVuLCBzb21ldGltZXMg bm90LgoKQ291bGRuJ3QgaXQgYmUgdGhhdCB3ZSdyZSBmYWlsaW5nIHRvIHJlYWQgdGhlICJzaXpl IG9mIHN0b2xlbiIKcmVnaXN0ZXJzIGluc3RlYWQgb2YgdGhlICJzdG9sZW4gcmVzZXJ2ZWQgc3R1 ZmYiIHJlZ3M/IEFsbCBvZiB0aGUKc3RvbGVuIHJlZ2lzdGVycyBoYXZlIGEgaGlzdG9yeSBvZiBj b250cm92ZXJzeS4uLgoKCj4gCj4gPiAKPiA+IAo+ID4gTm93IHRhbGtpbmcgYWJvdXQgdGhlIHBh dGNoIGl0c2VsZjoKPiA+IAo+ID4gSWYgd2UncmUgZ29pbmcgdG8gYXNzdW1lIHJhbmRvbSBiaXRz IGluc3RlYWQgb2YgYSBmdWxsLXplcm8gaW4KPiA+IChwb3NzaWJseSkgdW5pbml0aWFsaXplZCBz dHVmZiwgc2hvdWxkbid0IHdlIGZpcnN0IGNoZWNrIGJpdCAxLAo+ID4gd2hpY2gKPiA+IGlzIHN1 cHBvc2VkIHRvIHRlbGwgdXMgaWYgdGhlIHdob2xlIHJlZyBpcyBsb2NrZWQgb3Igbm90Pwo+IAo+ IE5vdCBzdXJlIHdlIGNhbiB0cnVzdCB0aGUgQklPUyB0byBhbHdheXMgc2V0IHRoZSBsb2NrIGJp dC4gSSBzdXBwb3NlCj4gaXQKPiByZWFsbHkgc2hvdWxkLCBidXQgSSBkb24ndCByZWNhbGwgc2Vl aW5nIGFueXRoaW5nIGluIHRoZSBkb2NzIHNheWluZwo+IHRoYXQgbm90IHNldHRpbmcgdGhlIGxv Y2sgYml0IHdvdWxkIHNvbWVob3cgZGlzYWJsZSB0aGUgcmVzZXJ2ZWQKPiBhcmVhLgoKVGhlIHdh eSB0aGluZ3MgYXJlIHdvcmRlZCwgaXQgc3VnZ2VzdHMgdGhhdCBpZiB0aGUgbG9jayBiaXQgaXMg emVybywKZXZlcnl0aGluZyBlbHNlIGNvdWxkIGJlIGdhcmJhZ2UuIEJpdCAwIGlzIG9ubHkgbG9j a2VkIGFmdGVyIGJpdCAxIGlzCmxvY2tlZC4gSXQgZG9lc24ndCBtYWtlIHNlbnNlIHRvIG1lIHRv IHRydXN0IGJpdCAwIHdpdGhvdXQgdHJ1c3RpbmcgYml0CjEuCgpTbyBteSB1bmRlcnN0YW5kaW5n IGlzIHRoYXQgYXMgbG9uZyBhcyB0aGUgZW5hYmxlIGJpdCBpcyBzZXQgdGhlCj4gaGFyZHdhcmUg d2lsbCBwcmV2ZW50IHVzIGZyb20gYWNjZXNzaW5nIHRoZSBhcmUsIHJlZ2FyZGxlc3Mgb2YKPiB3 aGV0aGVyCj4gdGhlIHNldHRpbmdzIGhhdmUgYmVlbiBsb2NrZWQgZG93biBvciBub3QuCj4gCj4g VGhpcyB3b3VsZG4ndCBiZSB0aGUgZmlyc3QgbG9jayBiaXQgc29tZSBCSU9TIHZlcnNpb25zIGZv cmdldCB0byBzZXQKPiBCVFcuCgpCdXQgaXQgY291bGQgYmUgd29ydGggY2hlY2tpbmcgdGhpcyBu b3cgdGhhdCB5b3UgaGF2ZSBhY2Nlc3MgdG8gdGhlCm1hY2hpbmVzIHRoYXQgaGF2ZSB0aGUgcmFu ZG9tIHN0dWZmLi4uCgoKPiAKPiA+IAo+ID4gaWYgKChyZWdfdmFsICYgMHgzKSAhPSAweDMpCj4g PiAJaWdub3JlIHN0b2xlbiByZXNlcnZlZCBzdHVmZjsKPiA+IAo+ID4gQW55d2F5LCB0aGlzIHBh dGNoIHdpdGhvdXQgbXkgc3VnZ2VzdGlvbnMgaXMgcHJvYmFibHkgYmV0dGVyIHRoYW4KPiA+IHRo ZQo+ID4gY3VycmVudCBzaXR1YXRpb24gc286Cj4gPiBSZXZpZXdlZC1ieTogUGF1bG8gWmFub25p IDxwYXVsby5yLnphbm9uaUBpbnRlbC5jb20+Cj4gPiBidXQgcGxlYXNlIGZlZWwgaW52ZXN0aWdh dGUgdGhlIGJpdCAxIHRoaW5nIGFuZCBDQyBtZSBvbiB2MiBvciBhCj4gPiBwb3NzaWJsZSBmb2xs b3ctdXAgcGF0Y2ggd2l0aCBjb25jbHVzaW9ucy4KPiA+IAo+ID4gCj4gPiA+IENjOiBUb21pIFNh cnZlbGEgPHRvbWkucC5zYXJ2ZWxhQGludGVsLmNvbT4KPiA+ID4gU2lnbmVkLW9mZi1ieTogVmls bGUgU3lyasOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4LmludGVsLmNvbT4KPiA+ID4gLS0tCj4g PiA+IMKgZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW1fc3RvbGVuLmMgfCAzMAo+ID4gPiAr KysrKysrKysrKysrKysrKysrKysrKysrKysrKysKPiA+ID4gwqBkcml2ZXJzL2dwdS9kcm0vaTkx NS9pOTE1X3JlZy5owqDCoMKgwqDCoMKgwqDCoHzCoMKgMiArKwo+ID4gPiDCoDIgZmlsZXMgY2hh bmdlZCwgMzIgaW5zZXJ0aW9ucygrKQo+ID4gPiAKPiA+ID4gZGlmZiAtLWdpdCBhL2RyaXZlcnMv Z3B1L2RybS9pOTE1L2k5MTVfZ2VtX3N0b2xlbi5jCj4gPiA+IGIvZHJpdmVycy9ncHUvZHJtL2k5 MTUvaTkxNV9nZW1fc3RvbGVuLmMKPiA+ID4gaW5kZXggMDNlN2FiYzdlMDQzLi40NGE1ZGJjOGMy M2IgMTAwNjQ0Cj4gPiA+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtX3N0b2xl bi5jCj4gPiA+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtX3N0b2xlbi5jCj4g PiA+IEBAIC0yOTQsNiArMjk0LDEyIEBAIHN0YXRpYyB2b2lkIGc0eF9nZXRfc3RvbGVuX3Jlc2Vy dmVkKHN0cnVjdAo+ID4gPiBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiwKPiA+ID4gwqAJCQkJ wqDCoMKgwqDCoEVMS19TVE9MRU5fUkVTRVJWRUQpOwo+ID4gPiDCoAlkbWFfYWRkcl90IHN0b2xl bl90b3AgPSBkZXZfcHJpdi0+bW0uc3RvbGVuX2Jhc2UgKyBnZ3R0LQo+ID4gPiA+IHN0b2xlbl9z aXplOwo+ID4gPiAKPiA+ID4gwqAKPiA+ID4gKwlpZiAoKHJlZ192YWwgJiBHNFhfU1RPTEVOX1JF U0VSVkVEX0VOQUJMRSkgPT0gMCkgewo+ID4gPiArCQkqYmFzZSA9IDA7Cj4gPiA+ICsJCSpzaXpl ID0gMDsKPiA+ID4gKwkJcmV0dXJuOwo+ID4gPiArCX0KPiA+ID4gKwo+ID4gPiDCoAkqYmFzZSA9 IChyZWdfdmFsICYgRzRYX1NUT0xFTl9SRVNFUlZFRF9BRERSMl9NQVNLKSA8PAo+ID4gPiAxNjsK PiA+ID4gwqAKPiA+ID4gwqAJV0FSTl9PTigocmVnX3ZhbCAmIEc0WF9TVE9MRU5fUkVTRVJWRURf QUREUjFfTUFTSykgPAo+ID4gPiAqYmFzZSk7Cj4gPiA+IEBAIC0zMTMsNiArMzE5LDEyIEBAIHN0 YXRpYyB2b2lkIGdlbjZfZ2V0X3N0b2xlbl9yZXNlcnZlZChzdHJ1Y3QKPiA+ID4gZHJtX2k5MTVf cHJpdmF0ZSAqZGV2X3ByaXYsCj4gPiA+IMKgewo+ID4gPiDCoAl1aW50MzJfdCByZWdfdmFsID0g STkxNV9SRUFEKEdFTjZfU1RPTEVOX1JFU0VSVkVEKTsKPiA+ID4gwqAKPiA+ID4gKwlpZiAoKHJl Z192YWwgJiBHRU42X1NUT0xFTl9SRVNFUlZFRF9FTkFCTEUpID09IDApIHsKPiA+ID4gKwkJKmJh c2UgPSAwOwo+ID4gPiArCQkqc2l6ZSA9IDA7Cj4gPiA+ICsJCXJldHVybjsKPiA+ID4gKwl9Cj4g PiA+ICsKPiA+ID4gwqAJKmJhc2UgPSByZWdfdmFsICYgR0VONl9TVE9MRU5fUkVTRVJWRURfQURE Ul9NQVNLOwo+ID4gPiDCoAo+ID4gPiDCoAlzd2l0Y2ggKHJlZ192YWwgJiBHRU42X1NUT0xFTl9S RVNFUlZFRF9TSVpFX01BU0spIHsKPiA+ID4gQEAgLTMzOSw2ICszNTEsMTIgQEAgc3RhdGljIHZv aWQgZ2VuN19nZXRfc3RvbGVuX3Jlc2VydmVkKHN0cnVjdAo+ID4gPiBkcm1faTkxNV9wcml2YXRl ICpkZXZfcHJpdiwKPiA+ID4gwqB7Cj4gPiA+IMKgCXVpbnQzMl90IHJlZ192YWwgPSBJOTE1X1JF QUQoR0VONl9TVE9MRU5fUkVTRVJWRUQpOwo+ID4gPiDCoAo+ID4gPiArCWlmICgocmVnX3ZhbCAm IEdFTjZfU1RPTEVOX1JFU0VSVkVEX0VOQUJMRSkgPT0gMCkgewo+ID4gPiArCQkqYmFzZSA9IDA7 Cj4gPiA+ICsJCSpzaXplID0gMDsKPiA+ID4gKwkJcmV0dXJuOwo+ID4gPiArCX0KPiA+ID4gKwo+ ID4gPiDCoAkqYmFzZSA9IHJlZ192YWwgJiBHRU43X1NUT0xFTl9SRVNFUlZFRF9BRERSX01BU0s7 Cj4gPiA+IMKgCj4gPiA+IMKgCXN3aXRjaCAocmVnX3ZhbCAmIEdFTjdfU1RPTEVOX1JFU0VSVkVE X1NJWkVfTUFTSykgewo+ID4gPiBAQCAtMzU5LDYgKzM3NywxMiBAQCBzdGF0aWMgdm9pZCBjaHZf Z2V0X3N0b2xlbl9yZXNlcnZlZChzdHJ1Y3QKPiA+ID4gZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3By aXYsCj4gPiA+IMKgewo+ID4gPiDCoAl1aW50MzJfdCByZWdfdmFsID0gSTkxNV9SRUFEKEdFTjZf U1RPTEVOX1JFU0VSVkVEKTsKPiA+ID4gwqAKPiA+ID4gKwlpZiAoKHJlZ192YWwgJiBHRU42X1NU T0xFTl9SRVNFUlZFRF9FTkFCTEUpID09IDApIHsKPiA+ID4gKwkJKmJhc2UgPSAwOwo+ID4gPiAr CQkqc2l6ZSA9IDA7Cj4gPiA+ICsJCXJldHVybjsKPiA+ID4gKwl9Cj4gPiA+ICsKPiA+ID4gwqAJ KmJhc2UgPSByZWdfdmFsICYgR0VONl9TVE9MRU5fUkVTRVJWRURfQUREUl9NQVNLOwo+ID4gPiDC oAo+ID4gPiDCoAlzd2l0Y2ggKHJlZ192YWwgJiBHRU44X1NUT0xFTl9SRVNFUlZFRF9TSVpFX01B U0spIHsKPiA+ID4gQEAgLTM4Nyw2ICs0MTEsMTIgQEAgc3RhdGljIHZvaWQgYmR3X2dldF9zdG9s ZW5fcmVzZXJ2ZWQoc3RydWN0Cj4gPiA+IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2LAo+ID4g PiDCoAl1aW50MzJfdCByZWdfdmFsID0gSTkxNV9SRUFEKEdFTjZfU1RPTEVOX1JFU0VSVkVEKTsK PiA+ID4gwqAJZG1hX2FkZHJfdCBzdG9sZW5fdG9wOwo+ID4gPiDCoAo+ID4gPiArCWlmICgocmVn X3ZhbCAmIEdFTjZfU1RPTEVOX1JFU0VSVkVEX0VOQUJMRSkgPT0gMCkgewo+ID4gPiArCQkqYmFz ZSA9IDA7Cj4gPiA+ICsJCSpzaXplID0gMDsKPiA+ID4gKwkJcmV0dXJuOwo+ID4gPiArCX0KPiA+ ID4gKwo+ID4gPiDCoAlzdG9sZW5fdG9wID0gZGV2X3ByaXYtPm1tLnN0b2xlbl9iYXNlICsgZ2d0 dC0KPiA+ID4gPnN0b2xlbl9zaXplOwo+ID4gPiDCoAo+ID4gPiDCoAkqYmFzZSA9IHJlZ192YWwg JiBHRU42X1NUT0xFTl9SRVNFUlZFRF9BRERSX01BU0s7Cj4gPiA+IGRpZmYgLS1naXQgYS9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X3JlZy5oCj4gPiA+IGIvZHJpdmVycy9ncHUvZHJtL2k5MTUv aTkxNV9yZWcuaAo+ID4gPiBpbmRleCBmMGY4ZjYwNTk2NTIuLmRjMmNiYzQyOGQxYiAxMDA2NDQK PiA+ID4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9yZWcuaAo+ID4gPiArKysgYi9k cml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X3JlZy5oCj4gPiA+IEBAIC0zODIsNiArMzgyLDcgQEAg c3RhdGljIGlubGluZSBib29sCj4gPiA+IGk5MTVfbW1pb19yZWdfdmFsaWQoaTkxNV9yZWdfdAo+ ID4gPiByZWcpCj4gPiA+IMKgI2RlZmluZSBHRU44X1NUT0xFTl9SRVNFUlZFRF8yTQkJKDEgPDwg NykKPiA+ID4gwqAjZGVmaW5lIEdFTjhfU1RPTEVOX1JFU0VSVkVEXzRNCQkoMiA8PCA3KQo+ID4g PiDCoCNkZWZpbmUgR0VOOF9TVE9MRU5fUkVTRVJWRURfOE0JCSgzIDw8IDcpCj4gPiA+ICsjZGVm aW5lIEdFTjZfU1RPTEVOX1JFU0VSVkVEX0VOQUJMRQkoMSA8PCAwKQo+ID4gPiDCoAo+ID4gPiDC oC8qIFZHQSBzdHVmZiAqLwo+ID4gPiDCoAo+ID4gPiBAQCAtMzM5OCw2ICszMzk5LDcgQEAgZW51 bSBpOTE1X3Bvd2VyX3dlbGxfaWQgewo+ID4gPiDCoCNkZWZpbmUgRUxLX1NUT0xFTl9SRVNFUlZF RAkJX01NSU8oTUNIQkFSX01JUlJPUl9CCj4gPiA+IEFTRQo+ID4gPiArIDB4NDgpCj4gPiA+IMKg I2RlZmluZSBHNFhfU1RPTEVOX1JFU0VSVkVEX0FERFIxX01BU0sJKDB4RkZGRiA8PCAxNikKPiA+ ID4gwqAjZGVmaW5lIEc0WF9TVE9MRU5fUkVTRVJWRURfQUREUjJfTUFTSwkoMHhGRkYgPDwgNCkK PiA+ID4gKyNkZWZpbmUgRzRYX1NUT0xFTl9SRVNFUlZFRF9FTkFCTEUJKDEgPDwgMCkKPiA+ID4g wqAKPiA+ID4gwqAvKiBNZW1vcnkgY29udHJvbGxlciBmcmVxdWVuY3kgaW4gTUNIQkFSIGZvciBI YXN3ZWxsIChwb3NzaWJsZQo+ID4gPiBTTkIrKQo+ID4gPiAqLwo+ID4gPiDCoCNkZWZpbmUgRENM SyBfTU1JTyhNQ0hCQVJfTUlSUk9SX0JBU0VfU05CICsgMHg1ZTA0KQo+IAo+IApfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBs aXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVz a3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK