From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Singh, Gaurav K" Subject: Re: [PATCH v2 02/23] drm/i915/dp: Cache the DP/eDP DSC DPCD register set on Hotplug/eDP Init Date: Tue, 11 Sep 2018 16:52:30 +0530 Message-ID: References: <1533071239-28815-1-git-send-email-manasi.d.navare@intel.com> <1533071239-28815-3-git-send-email-manasi.d.navare@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id A00D6899D6 for ; Tue, 11 Sep 2018 11:22:34 +0000 (UTC) In-Reply-To: <1533071239-28815-3-git-send-email-manasi.d.navare@intel.com> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Manasi Navare , intel-gfx@lists.freedesktop.org Cc: Daniel Vetter List-Id: intel-gfx@lists.freedesktop.org CgpPbiA4LzEvMjAxOCAyOjM2IEFNLCBNYW5hc2kgTmF2YXJlIHdyb3RlOgo+IERTQyBpcyBzdXBw b3J0ZWQgb24gZURQIHN0YXJ0aW5nIEdFTiAxMCBkaXNwbGF5IGFuZCBvbiBEUCBzdGFydGluZwo+ IEdFTiAxMS4KPiBUaGlzIHBhdGNoIGltcGxlbWVudHMgdGhlIGRpc2NvdmVyeSBwaGFzZSBvZiBE U0MuIE9uIGhvdHBsdWcsCj4gc291cmNlIHJlYWRzIHRoZSBEU0MgRFBDRCByZWdpc3RlciBzZXQg KDB4MDAwNjAgLSAweDAwNkYpIHRvCgpQbGVhc2UgY29ycmVjdCBpdCB0byAweDAwMDZGIGluIG9y ZGVyIHRvIG1hdGNoIHRoZSBzcGVjCgo+IHJlYWQgdGhlIGRlY29tcHJlc3Npb24gY2FwYWJpbGl0 aWVzIG9mIHRoZSBzaW5rIGRldmljZS4KPiBUaGlzIGVudGlyZSBibG9jayBvZiByZWdpc3RlcnMg aXMgY2FjaGVkIGluIGludGVsX2RwIHNvIHRoYXQKPiBjYXBhYmlsaXR5IGluZm9ybWF0aW9uIGNh biBiZSB1c2VkIGR1cmluZyBEU0MgY29uZmlndXJhdGlvbgo+IHBoYXNlIGR1cmluZyBjb21wdXRl X2NvbmZpZyBwaGFzZSBvZiB0aGUgbW9kZXNldC4KPiBGb3IgZURQLCB0aGlzIGNhY2hpbmcgaGFw cGVucyBkdXJpbmcgdGhlIGVEUCBpbml0aWFsaXphdGlvbi4KPiBUaGlzIGNhY2hpbmcgaXMgZG9u ZSBvbmx5IGZvciBlRFAgYW5kIERQIHJldiA+PSAxLjQKPgo+IHY1Ogo+ICogRml4IHRoZSBibG9j ayBjb21tZW50IChHYXVyYXYpCj4gKiBVc2UgRFJNX0VSUk9SIGZvciBkcGNkX3JlYWQgZmFpbCAo R2F1cmF2LEFudXNoYSkKPiB2NDoKPiAqIENhY2hlIHRoZXNlIG9ubHkgZm9yIEdlbiA+PSAxMQo+ IHYzOgo+ICogUmVtb3ZlIHRoZSBkc2Nfc2lua19zdXBwb3J0IGZpZWxkIGluIGludGVsX2RwIChK YW5pIE4pCj4gdjI6Cj4gKiBDbGVhciB0aGUgY2FjaGVkIHJlZ2lzdGVycyBvbiBob3RwbHVnIGFs d2F5cyAoSmFuaSBOKQo+ICogQ29tYmluZSB0aGUgZURQIGFuZCBEUCBjYWNoaW5nIGluIHNhbWUg ZnVuY3Rpb24gKEphbmkgTikKPgo+IENjOiBKYW5pIE5pa3VsYSA8amFuaS5uaWt1bGFAbGludXgu aW50ZWwuY29tPgo+IENjOiBWaWxsZSBTeXJqYWxhIDx2aWxsZS5zeXJqYWxhQGxpbnV4LmludGVs LmNvbT4KPiBDYzogRGFuaWVsIFZldHRlciA8ZGFuaWVsLnZldHRlckBmZndsbC5jaD4KPiBDYzog QW51c2hhIFNyaXZhdHNhIDxhbnVzaGEuc3JpdmF0c2FAaW50ZWwuY29tPgo+IENjOiBHYXVyYXYg SyBTaW5naCA8Z2F1cmF2Lmsuc2luZ2hAaW50ZWwuY29tPgo+IFNpZ25lZC1vZmYtYnk6IE1hbmFz aSBOYXZhcmUgPG1hbmFzaS5kLm5hdmFyZUBpbnRlbC5jb20+CgpFeGNlcHQgdGhlIGFib3ZlIGNv bW1lbnQsIHRoaXMgcGF0Y2ggbG9va3MgZ29vZCB0byBtZS4uCgpSZXZpZXdlZC1ieTogR2F1cmF2 IEsgU2luZ2g8Z2F1cmF2Lmsuc2luZ2hAaW50ZWwuY29tPgoKPiAtLS0KPiAgIGRyaXZlcnMvZ3B1 L2RybS9pOTE1L2ludGVsX2RwLmMgIHwgMzIgKysrKysrKysrKysrKysrKysrKysrKysrKysrKysr KysKPiAgIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rydi5oIHwgIDEgKwo+ICAgMiBmaWxl cyBjaGFuZ2VkLCAzMyBpbnNlcnRpb25zKCspCj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUv ZHJtL2k5MTUvaW50ZWxfZHAuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMKPiBp bmRleCA4ZTBlMTRiLi5hZmE0ZTJkIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1 L2ludGVsX2RwLmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcC5jCj4gQEAg LTM4NzcsNiArMzg3NywyOSBAQCBpbnRlbF9kcF9yZWFkX2RwY2Qoc3RydWN0IGludGVsX2RwICpp bnRlbF9kcCkKPiAgIAlyZXR1cm4gaW50ZWxfZHAtPmRwY2RbRFBfRFBDRF9SRVZdICE9IDA7Cj4g ICB9Cj4gICAKPiArc3RhdGljIHZvaWQgaW50ZWxfZHBfZ2V0X2RzY19zaW5rX2NhcChzdHJ1Y3Qg aW50ZWxfZHAgKmludGVsX2RwKQo+ICt7Cj4gKwkvKgo+ICsJICpDbGVhciB0aGUgY2FjaGVkIHJl Z2lzdGVyIHNldCB0byBhdm9pZCB1c2luZyBzdGFsZSB2YWx1ZXMKPiArCSAqIGZvciB0aGUgc2lu a3MgdGhhdCBkbyBub3Qgc3VwcG9ydCBEU0MuCj4gKwkgKi8KPiArCW1lbXNldChpbnRlbF9kcC0+ ZHNjX2RwY2QsIDAsIHNpemVvZihpbnRlbF9kcC0+ZHNjX2RwY2QpKTsKPiArCj4gKwkvKiBDYWNo ZSB0aGUgRFNDIERQQ0QgaWYgZURQIG9yIERQIHJldiA+PSAxLjQgKi8KPiArCWlmIChpbnRlbF9k cC0+ZHBjZFtEUF9EUENEX1JFVl0gPj0gMHgxNCB8fAo+ICsJICAgIGludGVsX2RwLT5lZHBfZHBj ZFswXSA+PSBEUF9FRFBfMTQpIHsKPiArCQlpZiAoZHJtX2RwX2RwY2RfcmVhZCgmaW50ZWxfZHAt PmF1eCwgRFBfRFNDX1NVUFBPUlQsCj4gKwkJCQkgICAgIGludGVsX2RwLT5kc2NfZHBjZCwKPiAr CQkJCSAgICAgc2l6ZW9mKGludGVsX2RwLT5kc2NfZHBjZCkpIDwgMCkKPiArCQkJRFJNX0VSUk9S KCJGYWlsZWQgdG8gcmVhZCBEUENEIHJlZ2lzdGVyIDB4JXhcbiIsCj4gKwkJCQkgIERQX0RTQ19T VVBQT1JUKTsKPiArCj4gKwkJRFJNX0RFQlVHX0tNUygiRFNDIERQQ0Q6ICUqcGhcbiIsCj4gKwkJ CSAgICAgIChpbnQpc2l6ZW9mKGludGVsX2RwLT5kc2NfZHBjZCksCj4gKwkJCSAgICAgIGludGVs X2RwLT5kc2NfZHBjZCk7Cj4gKwl9Cj4gK30KPiArCj4gICBzdGF0aWMgYm9vbAo+ICAgaW50ZWxf ZWRwX2luaXRfZHBjZChzdHJ1Y3QgaW50ZWxfZHAgKmludGVsX2RwKQo+ICAgewo+IEBAIC0zOTUz LDYgKzM5NzYsMTAgQEAgaW50ZWxfZWRwX2luaXRfZHBjZChzdHJ1Y3QgaW50ZWxfZHAgKmludGVs X2RwKQo+ICAgCj4gICAJaW50ZWxfZHBfc2V0X2NvbW1vbl9yYXRlcyhpbnRlbF9kcCk7Cj4gICAK PiArCS8qIFJlYWQgdGhlIGVEUCBEU0MgRFBDRCByZWdpc3RlcnMgKi8KPiArCWlmIChJTlRFTF9H RU4oZGV2X3ByaXYpID49IDEwIHx8IElTX0dFTUlOSUxBS0UoZGV2X3ByaXYpKQo+ICsJCWludGVs X2RwX2dldF9kc2Nfc2lua19jYXAoaW50ZWxfZHApOwo+ICsKPiAgIAlyZXR1cm4gdHJ1ZTsKPiAg IH0KPiAgIAo+IEBAIC00OTQ0LDYgKzQ5NzEsNyBAQCBpbnRlbF9kcF9sb25nX3B1bHNlKHN0cnVj dCBpbnRlbF9jb25uZWN0b3IgKmNvbm5lY3RvcikKPiAgIAo+ICAgCWlmIChzdGF0dXMgPT0gY29u bmVjdG9yX3N0YXR1c19kaXNjb25uZWN0ZWQpIHsKPiAgIAkJbWVtc2V0KCZpbnRlbF9kcC0+Y29t cGxpYW5jZSwgMCwgc2l6ZW9mKGludGVsX2RwLT5jb21wbGlhbmNlKSk7Cj4gKwkJbWVtc2V0KGlu dGVsX2RwLT5kc2NfZHBjZCwgMCwgc2l6ZW9mKGludGVsX2RwLT5kc2NfZHBjZCkpOwo+ICAgCj4g ICAJCWlmIChpbnRlbF9kcC0+aXNfbXN0KSB7Cj4gICAJCQlEUk1fREVCVUdfS01TKCJNU1QgZGV2 aWNlIG1heSBoYXZlIGRpc2FwcGVhcmVkICVkIHZzICVkXG4iLAo+IEBAIC00OTY5LDYgKzQ5OTcs MTAgQEAgaW50ZWxfZHBfbG9uZ19wdWxzZShzdHJ1Y3QgaW50ZWxfY29ubmVjdG9yICpjb25uZWN0 b3IpCj4gICAKPiAgIAlpbnRlbF9kcF9wcmludF9yYXRlcyhpbnRlbF9kcCk7Cj4gICAKPiArCS8q IFJlYWQgRFAgU2luayBEU0MgQ2FwIERQQ0QgcmVncyBmb3IgRFAgdjEuNCAqLwo+ICsJaWYgKElO VEVMX0dFTihkZXZfcHJpdikgPj0gMTEpCj4gKwkJaW50ZWxfZHBfZ2V0X2RzY19zaW5rX2NhcChp bnRlbF9kcCk7Cj4gKwo+ICAgCWRybV9kcF9yZWFkX2Rlc2MoJmludGVsX2RwLT5hdXgsICZpbnRl bF9kcC0+ZGVzYywKPiAgIAkJCSBkcm1fZHBfaXNfYnJhbmNoKGludGVsX2RwLT5kcGNkKSk7Cj4g ICAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHJ2LmggYi9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcnYuaAo+IGluZGV4IDk5YTVmNWIuLjI5YWJlN2EgMTAw NjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHJ2LmgKPiArKysgYi9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcnYuaAo+IEBAIC0xMDcwLDYgKzEwNzAsNyBAQCBzdHJ1 Y3QgaW50ZWxfZHAgewo+ICAgCXVpbnQ4X3QgcHNyX2RwY2RbRURQX1BTUl9SRUNFSVZFUl9DQVBf U0laRV07Cj4gICAJdWludDhfdCBkb3duc3RyZWFtX3BvcnRzW0RQX01BWF9ET1dOU1RSRUFNX1BP UlRTXTsKPiAgIAl1aW50OF90IGVkcF9kcGNkW0VEUF9ESVNQTEFZX0NUTF9DQVBfU0laRV07Cj4g Kwl1OCBkc2NfZHBjZFtEUF9EU0NfUkVDRUlWRVJfQ0FQX1NJWkVdOwo+ICAgCS8qIHNvdXJjZSBy YXRlcyAqLwo+ICAgCWludCBudW1fc291cmNlX3JhdGVzOwo+ICAgCWNvbnN0IGludCAqc291cmNl X3JhdGVzOwoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K SW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0 dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==