From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Pandiyan, Dhinakaran" Subject: Re: [PATCH v4 1/2] drm/i915/dp: Enable DP audio stall fix for gen9 platforms Date: Wed, 26 Oct 2016 18:12:32 +0000 Message-ID: <1477506535.3808.9.camel@dk-H97M-D3H> References: <1477442271.19344.41.camel@dk-H97M-D3H> <1477449456-22146-1-git-send-email-dhinakaran.pandiyan@intel.com> <871sz3mqro.fsf@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 261CA6E8FC for ; Wed, 26 Oct 2016 18:12:34 +0000 (UTC) In-Reply-To: <871sz3mqro.fsf@intel.com> Content-Language: en-US Content-ID: <7B21FDCF2F4480459A04A8941AA06CD9@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: "Nikula, Jani" Cc: "intel-gfx@lists.freedesktop.org" List-Id: intel-gfx@lists.freedesktop.org T24gV2VkLCAyMDE2LTEwLTI2IGF0IDExOjU3ICswMzAwLCBKYW5pIE5pa3VsYSB3cm90ZToNCj4g T24gV2VkLCAyNiBPY3QgMjAxNiwgRGhpbmFrYXJhbiBQYW5kaXlhbiA8ZGhpbmFrYXJhbi5wYW5k aXlhbkBpbnRlbC5jb20+IHdyb3RlOg0KPiA+IEVuYWJsaW5nIERQIGF1ZGlvIHN0YWxsIGZpeCBp cyBuZWNlc3NhcnkgdG8gcGxheSBhdWRpbyBvdmVyIERQIEhCUjIuIFNvLA0KPiA+IGxldCdzIHNl dCB0aGlzIGJpdCByaWdodCBiZWZvcmUgZW5hYmxpbmcgdGhlIGF1ZGlvIGNvZGVjLiBQbGF5aW5n IGF1ZGlvDQo+ID4gd2l0aG91dCBzZXR0aW5nIHRoaXMgYml0IHJlc3VsdHMgaW4gcGlwZSBGSUZP IHVuZGVycnVucy4NCj4gPg0KPiA+IFRoaXMgd29ya2Fyb3VuZCBpcyBhcHBsaWNhYmxlIG9ubHkg Zm9yIGF1ZGlvIHNhbXBsZSByYXRlcyB1cCB0byA5NmtIei4gRm9yDQo+ID4gZnJlcXVlbmNpZXMg YWJvdmUgOTZrSHosIHRoaXMgaXMgaW5zdWZmaWNpZW50IGFuZCBjZGNsayBzaG91bGQgYmUgaW5j cmVhc2VkDQo+ID4gdG8gYXQgbGVhc3QgNDMyIE1IeiwganVzdCBsaWtlIEJEVy4gU2luY2UsIHRo ZSBhdWRpbyBkcml2ZXIgZG9lcyBub3QNCj4gPiBzdXBwb3J0IHNhbXBsZSByYXRlcyA+IDQ4IGtI eiwgd2UgYXJlIHNhZmUgd2l0aCB0aGlzIGZpeCBmb3Igbm93Lg0KPiA+DQo+ID4gdjI6IElubGlu ZWQgdGhlIGNvZGUgY2hhbmdlIHdpdGhpbiBoc3dfYXVkaW9fY29kZWNfZW5hYmxlKCkgKEphbmkp DQo+ID4gICAgIEZpeGVkIHRoZSBwb3J0IGNsb2NrIHR5cG8NCj4gPiAgICAgQWRkZWQgVE9ETyBj b21tZW50DQo+ID4gU2lnbmVkLW9mZi1ieTogRGhpbmFrYXJhbiBQYW5kaXlhbiA8ZGhpbmFrYXJh bi5wYW5kaXlhbkBpbnRlbC5jb20+DQo+ID4gLS0tDQo+ID4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1 L2k5MTVfcmVnLmggICAgfCAgNSArKysrKw0KPiA+ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRl bF9hdWRpby5jIHwgMzAgKysrKysrKysrKysrKysrKysrKysrKysrKysrKystDQo+ID4gIDIgZmls ZXMgY2hhbmdlZCwgMzQgaW5zZXJ0aW9ucygrKSwgMSBkZWxldGlvbigtKQ0KPiA+DQo+ID4gZGlm ZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfcmVnLmggYi9kcml2ZXJzL2dwdS9k cm0vaTkxNS9pOTE1X3JlZy5oDQo+ID4gaW5kZXggMDBlZmFhMS4uNzZkYWM0OCAxMDA2NDQNCj4g PiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X3JlZy5oDQo+ID4gKysrIGIvZHJpdmVy cy9ncHUvZHJtL2k5MTUvaTkxNV9yZWcuaA0KPiA+IEBAIC02MjM2LDYgKzYyMzYsMTEgQEAgZW51 bSB7DQo+ID4gICNkZWZpbmUgU0xJQ0VfRUNPX0NISUNLRU4wCQkJX01NSU8oMHg3MzA4KQ0KPiA+ ICAjZGVmaW5lICAgUElYRUxfTUFTS19DQU1NSU5HX0RJU0FCTEUJCSgxIDw8IDE0KQ0KPiA+ICAN Cj4gPiArI2RlZmluZSBfQ0hJQ0tFTl9UUkFOU19BCTB4NDIwQzANCj4gPiArI2RlZmluZSBfQ0hJ Q0tFTl9UUkFOU19CCTB4NDIwQzQNCj4gPiArI2RlZmluZSBDSElDS0VOX1RSQU5TKHRyYW4pIF9N TUlPX1RSQU5TKHRyYW4sIF9DSElDS0VOX1RSQU5TX0EsIF9DSElDS0VOX1RSQU5TX0IpDQo+ID4g KyNkZWZpbmUgU1BBUkVfMTMJKDE8PDEzKQ0KPiA+ICsNCj4gPiAgLyogV2FDYXRFcnJvclJlamVj dGlvbklzc3VlICovDQo+ID4gICNkZWZpbmUgR0VON19TUV9DSElDS0VOX01CQ1VOSVRfQ09ORklH CQlfTU1JTygweDkwMzApDQo+ID4gICNkZWZpbmUgIEdFTjdfU1FfQ0hJQ0tFTl9NQkNVTklUX1NR SU5UTU9CCSgxPDwxMSkNCj4gPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50 ZWxfYXVkaW8uYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2F1ZGlvLmMNCj4gPiBpbmRl eCA3MDkzY2ZiLi44OTRmMTFlIDEwMDY0NA0KPiA+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1 L2ludGVsX2F1ZGlvLmMNCj4gPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9hdWRp by5jDQo+ID4gQEAgLTI4Myw2ICsyODMsOCBAQCBzdGF0aWMgdm9pZCBoc3dfYXVkaW9fY29kZWNf ZGlzYWJsZShzdHJ1Y3QgaW50ZWxfZW5jb2RlciAqZW5jb2RlcikNCj4gPiAgew0KPiA+ICAJc3Ry dWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2ID0gdG9faTkxNShlbmNvZGVyLT5iYXNlLmRl dik7DQo+ID4gIAlzdHJ1Y3QgaW50ZWxfY3J0YyAqaW50ZWxfY3J0YyA9IHRvX2ludGVsX2NydGMo ZW5jb2Rlci0+YmFzZS5jcnRjKTsNCj4gPiArCXN0cnVjdCBpbnRlbF9jcnRjX3N0YXRlICpjcnRj X2NvbmZpZyA9ICBpbnRlbF9jcnRjLT5jb25maWc7DQo+ID4gKwllbnVtIHRyYW5zY29kZXIgY3B1 X3RyYW5zY29kZXIgPSBjcnRjX2NvbmZpZy0+Y3B1X3RyYW5zY29kZXI7DQo+ID4gIAllbnVtIHBp cGUgcGlwZSA9IGludGVsX2NydGMtPnBpcGU7DQo+ID4gIAl1aW50MzJfdCB0bXA7DQo+ID4gIA0K PiA+IEBAIC0yOTAsMTMgKzI5MiwyMSBAQCBzdGF0aWMgdm9pZCBoc3dfYXVkaW9fY29kZWNfZGlz YWJsZShzdHJ1Y3QgaW50ZWxfZW5jb2RlciAqZW5jb2RlcikNCj4gPiAgDQo+ID4gIAltdXRleF9s b2NrKCZkZXZfcHJpdi0+YXZfbXV0ZXgpOw0KPiA+ICANCj4gPiArCS8qRGlzYWJsZSBEUCBhdWRp byBzdGFsbCBmaXggZm9yIEhCUjIqLw0KPiANCj4gTml0cGljaywgc3BhY2VzIGFmdGVyIC8qIGFu ZCBiZWZvcmUgKi8uDQo+IA0KPiA+ICsJaWYgKElTX0dFTjkoZGV2X3ByaXYpICYmIGludGVsX2Ny dGNfaGFzX2RwX2VuY29kZXIoY3J0Y19jb25maWcpICYmDQo+ID4gKwkgICAgY3J0Y19jb25maWct PnBvcnRfY2xvY2sgPj0gNTQwMDAwKSB7DQo+ID4gKwkJdG1wID0gSTkxNV9SRUFEKENISUNLRU5f VFJBTlMoY3B1X3RyYW5zY29kZXIpKTsNCj4gPiArCQl0bXAgJj0gflNQQVJFXzEzOw0KPiA+ICsJ CUk5MTVfV1JJVEUoQ0hJQ0tFTl9UUkFOUyhjcHVfdHJhbnNjb2RlciksIHRtcCk7DQo+ID4gKwl9 DQo+IA0KPiBIbW0uIFdoeSBkb24ndCB3ZSBqdXN0IGRvIHRoaXMgdW5jb25kaXRpb25hbGx5Pw0K PiANCg0KVGhhdCBiaXQgaXMgZGlzYWJsZWQgYnkgZGVmYXVsdCwgc28gYXZvaWRpbmcgIHR3byBN TUlPIG9wcy4gdGhhdCBhcmUgbm90DQpyZXF1aXJlZC4NCg0KPiA+ICsNCj4gPiAgCS8qIERpc2Fi bGUgdGltZXN0YW1wcyAqLw0KPiA+ICAJdG1wID0gSTkxNV9SRUFEKEhTV19BVURfQ0ZHKHBpcGUp KTsNCj4gPiAgCXRtcCAmPSB+QVVEX0NPTkZJR19OX1ZBTFVFX0lOREVYOw0KPiA+ICAJdG1wIHw9 IEFVRF9DT05GSUdfTl9QUk9HX0VOQUJMRTsNCj4gPiAgCXRtcCAmPSB+QVVEX0NPTkZJR19VUFBF Ul9OX01BU0s7DQo+ID4gIAl0bXAgJj0gfkFVRF9DT05GSUdfTE9XRVJfTl9NQVNLOw0KPiA+IC0J aWYgKGludGVsX2NydGNfaGFzX2RwX2VuY29kZXIoaW50ZWxfY3J0Yy0+Y29uZmlnKSkNCj4gPiAr CWlmIChpbnRlbF9jcnRjX2hhc19kcF9lbmNvZGVyKGNydGNfY29uZmlnKSkNCj4gPiAgCQl0bXAg fD0gQVVEX0NPTkZJR19OX1ZBTFVFX0lOREVYOw0KPiA+ICAJSTkxNV9XUklURShIU1dfQVVEX0NG RyhwaXBlKSwgdG1wKTsNCj4gPiAgDQo+ID4gQEAgLTMxNSw2ICszMjUsOCBAQCBzdGF0aWMgdm9p ZCBoc3dfYXVkaW9fY29kZWNfZW5hYmxlKHN0cnVjdCBkcm1fY29ubmVjdG9yICpjb25uZWN0b3Is DQo+ID4gIHsNCj4gPiAgCXN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiA9IHRvX2k5 MTUoY29ubmVjdG9yLT5kZXYpOw0KPiA+ICAJc3RydWN0IGludGVsX2NydGMgKmludGVsX2NydGMg PSB0b19pbnRlbF9jcnRjKGludGVsX2VuY29kZXItPmJhc2UuY3J0Yyk7DQo+ID4gKwlzdHJ1Y3Qg aW50ZWxfY3J0Y19zdGF0ZSAqY3J0Y19jb25maWcgPSAgaW50ZWxfY3J0Yy0+Y29uZmlnOw0KPiA+ ICsJZW51bSB0cmFuc2NvZGVyIGNwdV90cmFuc2NvZGVyID0gY3J0Y19jb25maWctPmNwdV90cmFu c2NvZGVyOw0KPiA+ICAJZW51bSBwaXBlIHBpcGUgPSBpbnRlbF9jcnRjLT5waXBlOw0KPiA+ICAJ ZW51bSBwb3J0IHBvcnQgPSBpbnRlbF9lbmNvZGVyLT5wb3J0Ow0KPiA+ICAJY29uc3QgdWludDhf dCAqZWxkID0gY29ubmVjdG9yLT5lbGQ7DQo+ID4gQEAgLTMyNiw2ICszMzgsMjIgQEAgc3RhdGlj IHZvaWQgaHN3X2F1ZGlvX2NvZGVjX2VuYWJsZShzdHJ1Y3QgZHJtX2Nvbm5lY3RvciAqY29ubmVj dG9yLA0KPiA+ICANCj4gPiAgCW11dGV4X2xvY2soJmRldl9wcml2LT5hdl9tdXRleCk7DQo+ID4g IA0KPiA+ICsJLyogRW5hYmxlIERQIGF1ZGlvIHN0YWxsIGZpeCBmb3IgSEJSMg0KPiA+ICsJICoN Cj4gPiArCSAqIFRPRE86IFRoaXMgd29ya2Fyb3VuZCBpcyBhcHBsaWNhYmxlIG9ubHkgZm9yIGF1 ZGlvIHNhbXBsZSByYXRlcyB1cA0KPiA+ICsJICogdG8gOTZrSHouIEZvciBmcmVxdWVuY2llcyBh Ym92ZSA5NmtIeiwgdGhpcyBpcyBpbnN1ZmZpY2llbnQgYW5kDQo+ID4gKwkgKiBjZGNsayBzaG91 bGQgYmUgaW5jcmVhc2VkIHRvIGF0IGxlYXN0IDQzMiBNSHosIGp1c3QgbGlrZSBCRFcuIFNpbmNl LA0KPiA+ICsJICogdGhlIGF1ZGlvIGRyaXZlciBkb2VzIG5vdCBzdXBwb3J0IHNhbXBsZSByYXRl cyA+IDQ4IGtIeiwgd2UgYXJlIHNhZmUNCj4gPiArCSAqIHdpdGggdGhpcyBmaXggZm9yIG5vdy4N Cj4gPiArCSAqLw0KPiANCj4gSXMgdGhpcyBUT0RPIHJlcXVpcmVkIGlmIHlvdSBhbHJlYWR5IGhh dmUgdGhhdCBjaGVjayBpbiBwYXRjaCAyLzI/DQo+IA0KDQpJbiBmYWN0LCB0aGlzIHBhdGNoIGl0 c2VsZiBpcyBub3QgcmVxdWlyZWQgaWYgd2UgYXJlIGluY3JlYXNpbmcgdGhlDQpjZGNsayB0byA0 MzIgTUh6IGZvciBnZW45IHBsYXRmb3JtcyAobGlrZSBwYXRjaCAyLzIpLiBIYXZpbmcgdGhpcw0K d29ya2Fyb3VuZCBnaXZlcyB1cyB0aGUgb3B0aW9uIHJ1bm5pbmcgdGhlIHBpcGVsaW5lIGF0IGEg bG93ZXIgY2RjbGsNCmZyZXF1ZW5jeSBpLmUuLCAzMzcuNSBNSHosIHdoaWNoIEkgYmVsaWV2ZSBz aG91bGQgYmUgYmV0dGVyIGluIHRlcm1zIG9mDQpwb3dlci4NCg0KDQo+ID4gKw0KPiA+ICsJaWYg KElTX0dFTjkoZGV2X3ByaXYpICYmIGludGVsX2NydGNfaGFzX2RwX2VuY29kZXIoY3J0Y19jb25m aWcpICYmDQo+ID4gKwkgICAgY3J0Y19jb25maWctPnBvcnRfY2xvY2sgPj0gNTQwMDAwKSB7DQo+ ID4gKwkJdG1wID0gSTkxNV9SRUFEKENISUNLRU5fVFJBTlMoY3B1X3RyYW5zY29kZXIpKTsNCj4g PiArCQl0bXAgfD0gU1BBUkVfMTM7DQo+ID4gKwkJSTkxNV9XUklURShDSElDS0VOX1RSQU5TKGNw dV90cmFuc2NvZGVyKSwgdG1wKTsNCj4gPiArCX0NCj4gPiArDQo+ID4gIAkvKiBFbmFibGUgYXVk aW8gcHJlc2VuY2UgZGV0ZWN0LCBpbnZhbGlkYXRlIEVMRCAqLw0KPiA+ICAJdG1wID0gSTkxNV9S RUFEKEhTV19BVURfUElOX0VMRF9DUF9WTEQpOw0KPiA+ICAJdG1wIHw9IEFVRElPX09VVFBVVF9F TkFCTEUocGlwZSk7DQo+IA0KDQpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVz a3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9p bnRlbC1nZngK