From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sivakumar Thulasimani Subject: Re: [PATCH] drm/i915/hotplug: Fixing storm handling for digital ports Date: Wed, 01 Jul 2015 18:26:48 +0530 Message-ID: <5593E390.5010805@intel.com> References: <1435575640-32105-1-git-send-email-sivakumar.thulasimani@intel.com> <20150629163753.GE30960@phenom.ffwll.local> <559209E4.3050406@intel.com> <20150630101018.GO30960@phenom.ffwll.local> <87mvzhwl9u.fsf@intel.com> <20150630111615.GS30960@phenom.ffwll.local> <87bnfxwf8n.fsf@intel.com> <20150630124741.GO5176@intel.com> <20150701123801.GB23343@phenom.ffwll.local> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTP id C909D6EB0D for ; Wed, 1 Jul 2015 05:56:51 -0700 (PDT) In-Reply-To: <20150701123801.GB23343@phenom.ffwll.local> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Daniel Vetter Cc: Jani Nikula , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org CgpPbiA3LzEvMjAxNSA2OjA4IFBNLCBEYW5pZWwgVmV0dGVyIHdyb3RlOgo+IE9uIFR1ZSwgSnVu IDMwLCAyMDE1IGF0IDAzOjQ3OjQxUE0gKzAzMDAsIFZpbGxlIFN5cmrDpGzDpCB3cm90ZToKPj4g T24gVHVlLCBKdW4gMzAsIDIwMTUgYXQgMDM6MzA6MTZQTSArMDMwMCwgSmFuaSBOaWt1bGEgd3Jv dGU6Cj4+PiBPbiBUdWUsIDMwIEp1biAyMDE1LCBEYW5pZWwgVmV0dGVyIDxkYW5pZWxAZmZ3bGwu Y2g+IHdyb3RlOgo+Pj4+IE9uIFR1ZSwgSnVuIDMwLCAyMDE1IGF0IDAxOjE5OjU3UE0gKzAzMDAs IEphbmkgTmlrdWxhIHdyb3RlOgo+Pj4+PiBPbiBUdWUsIDMwIEp1biAyMDE1LCBEYW5pZWwgVmV0 dGVyIDxkYW5pZWxAZmZ3bGwuY2g+IHdyb3RlOgo+Pj4+Pj4gT24gVHVlLCBKdW4gMzAsIDIwMTUg YXQgMDg6NDU6NDhBTSArMDUzMCwgU2l2YWt1bWFyIFRodWxhc2ltYW5pIHdyb3RlOgo+Pj4+Pj4+ Cj4+Pj4+Pj4gT24gNi8yOS8yMDE1IDEwOjA3IFBNLCBEYW5pZWwgVmV0dGVyIHdyb3RlOgo+Pj4+ Pj4+PiBPbiBNb24sIEp1biAyOSwgMjAxNSBhdCAwNDozMDo0MFBNICswNTMwLCBTaXZha3VtYXIg VGh1bGFzaW1hbmkgd3JvdGU6Cj4+Pj4+Pj4+PiBGcm9tOiAiVGh1bGFzaW1hbmksIFNpdmFrdW1h ciIgPHNpdmFrdW1hci50aHVsYXNpbWFuaUBpbnRlbC5jb20+Cj4+Pj4+Pj4+Pgo+Pj4+Pj4+Pj4g SFBEIHN0b3JtIGlzIGRldGVjdGVkIGluIGludGVsX2hwZF9pcnFfaGFuZGxlciBhbmQgZGlzYWJs ZWQgZm9yIHJlc3BlY3RpdmUKPj4+Pj4+Pj4+IHBvcnQgaW1tZWRpYXRlbHkgYnV0IHBvbGxpbmcg aXMgZW5hYmxlZCBvbmx5IGluIGk5MTVfaG90cGx1Z193b3JrX2Z1bmMgYW5kCj4+Pj4+Pj4+PiBu b3QgaW4gaTkxNV9kaWdwb3J0X3dvcmtfZnVuYy4gVGhpcyB3aWxsIHJlc3VsdCBpbiBkaXNhYmxl ZCBocGQgbmV2ZXIgZW5hYmxlZAo+Pj4+Pj4+Pj4gYmFjayBhZ2Fpbi4gVGhpcyBpcyBmaXhlZCBi eSBjYWxsaW5nIHRoZSBhcHByb3ByaWF0ZSBzdG9ybSBkaXNhYmxlIGZ1bmN0aW9uCj4+Pj4+Pj4+ PiB0aGF0IHdpbGwgaGFuZGxlIHRoZSByZXN0IG9mIHRoZSBzZXF1ZW5jZSAoYm90aCBwb2xsaW5n IGVuYWJsZSBhbmQgcmVlbmFibGluZwo+Pj4+Pj4+Pj4gb2YgSFBEIGxhdGVyKS4KPj4+Pj4+Pj4+ IC0tLQo+Pj4+Pj4+Pj4gICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9ob3RwbHVnLmMgfCAg ICA0ICsrKysKPj4+Pj4+Pj4+ICAgMSBmaWxlIGNoYW5nZWQsIDQgaW5zZXJ0aW9ucygrKQo+Pj4+ Pj4+Pj4KPj4+Pj4+Pj4+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9o b3RwbHVnLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9ob3RwbHVnLmMKPj4+Pj4+Pj4+ IGluZGV4IDNjNTNhYWMuLjhlMTg1ODcgMTAwNjQ0Cj4+Pj4+Pj4+PiAtLS0gYS9kcml2ZXJzL2dw dS9kcm0vaTkxNS9pbnRlbF9ob3RwbHVnLmMKPj4+Pj4+Pj4+ICsrKyBiL2RyaXZlcnMvZ3B1L2Ry bS9pOTE1L2ludGVsX2hvdHBsdWcuYwo+Pj4+Pj4+Pj4gQEAgLTIwNSw2ICsyMDUsMTAgQEAgc3Rh dGljIHZvaWQgaTkxNV9kaWdwb3J0X3dvcmtfZnVuYyhzdHJ1Y3Qgd29ya19zdHJ1Y3QgKndvcmsp Cj4+Pj4+Pj4+PiAgIAlkZXZfcHJpdi0+aG90cGx1Zy5sb25nX3BvcnRfbWFzayA9IDA7Cj4+Pj4+ Pj4+PiAgIAlzaG9ydF9wb3J0X21hc2sgPSBkZXZfcHJpdi0+aG90cGx1Zy5zaG9ydF9wb3J0X21h c2s7Cj4+Pj4+Pj4+PiAgIAlkZXZfcHJpdi0+aG90cGx1Zy5zaG9ydF9wb3J0X21hc2sgPSAwOwo+ Pj4+Pj4+Pj4gKwo+Pj4+Pj4+Pj4gKwkvKiBEaXNhYmxlIGhvdHBsdWcgb24gY29ubmVjdG9ycyB0 aGF0IGhpdCBhbiBpcnEgc3Rvcm0uICovCj4+Pj4+Pj4+PiArCWludGVsX2hwZF9pcnFfc3Rvcm1f ZGlzYWJsZShkZXZfcHJpdik7Cj4+Pj4+Pj4+IGRpZ3BvcnRfd29ya19mdW5jIHNjaGVkdWxlcyB0 aGUgaG90cGx1ZyBoYW5kbGVyIGZvciBldmVyeXRoaW5nIG5vdAo+Pj4+Pj4+PiBoYW5kbGVkLCB3 aGljaCBzaG91bGQgcmVzdWx0IGluIHRoaXMgZ2V0dGluZyBjYWxsZWQuIEl0IHJlYWxseSBzaG91 bGRuJ3QKPj4+Pj4+Pj4gbWF0dGVyIHdoZW4gZXhhY3RseSBpdCBnZXRzIGNhbGxlZC4KPj4+Pj4+ Pj4KPj4+Pj4+Pj4gQ2FuIHlvdSBwbGVhc2UgcHJvdmlkZSBtb3JlIGRhdGEgYW5kIGRldGFpbHMg Zm9yIHlvdXIgYW5hbHlzaXM/IExpa2UgYnVnCj4+Pj4+Pj4+IHJlcG9ydHMsIGJhY2t0cmFjZXMg YW5kIGRtZXNnIHRyYWNlcyBzaG93aW5nIHRoYXQgdGhlIGhhbmRsZXIgaXMgc3R1Y2sgYW5kCj4+ Pj4+Pj4+IHNpbWlsYXIgdGhpbmdzLgo+Pj4+Pj4+Pgo+Pj4+Pj4+PiBBbHNvIHlvdXIgcGF0Y2gg aXMgbWlzc2luZyB0aGUgcy1vLWIgbGluZS4KPj4+Pj4+Pj4gLURhbmllbAo+Pj4+Pj4+Pgo+Pj4+ Pj4+IHRoZXJlIGlzIG5vIGJ1ZyBmaWxlZCBmb3IgdGhpcywgaXQgd2FzIG9ic2VydmVkIGFzIHBh cnQgb2YgY29kZSBhbmFseXNpcwo+Pj4+Pj4+ICh0aGF0IGlzIHByb3ZpZGVkIGJlbG93KQo+Pj4+ Pj4+IEknbGwgdHJ5IHRvIGdldCBtb3JlIGluZm8gYXMgc29vbiBhcyBpIGdldCBhY2Nlc3MgdG8g YSBzeXN0ZW0uCj4+Pj4+Pj4KPj4+Pj4+PiBzaG9ydCBhbnN3ZXI6Cj4+Pj4+Pj4gdGhlIGlzc3Vl IHdpbGwgYmUgc2VlbiBkdXJpbmcgaHBkIHN0b3JtLCB3aGVyZSB0aGUgbGFzdCBIUEQgaXMgaGFu ZGxlZAo+Pj4+Pj4+IGluc2lkZSBpbnRlbF9kcF9ocGRfcHVsc2UuCj4+Pj4+Pj4gc28gaTkxNV9o b3RwbHVnX3dvcmtfZnVuYyB3aWxsIG5vdCBiZSBxdWV1ZWQgdGh1cyBtaXNzaW5nIHRoZSBzdG9y bV9kaXNhYmxlCj4+Pj4+Pj4gY2FsbC4KPj4+Pj4+Pgo+Pj4+Pj4+IGxvbmcgYW5zd2VyIDoKPj4+ Pj4+PiBUbyBnaXZlIGEgYml0IG1vcmUgYmFja2dyb3VuZCwgbGV0cyBhc3N1bWUgdGhhdCB3ZSBn ZXQgYSBjYWxsIHRvCj4+Pj4+Pj4gaW50ZWxfaHBkX2lycV9oYW5kbGVyLCB3aXRoIHBhcmFtcyBs b25nIHB1bHNlIGZvciBEUCBwYW5lbCBpbiBQT1JUX0IKPj4+Pj4+PiBvbiBhIEhTVy9CRFcgc3lz dGVtIGR1cmluZyBIUEQgc3Rvcm0gc2NlbmFyaW8uCj4+Pj4+Pj4gVGhlIGZvbGxvd2luZyBzZXF1 ZW5jZSB3aWxsIHRha2UgcGxhY2UKPj4+Pj4+PiAqKSBpc19kaWdfcG9ydCB3aWxsIGJlIHNldCBh bmQgd2lsbCByZXN1bHQgaW4gcXVldWVfZGlnIGJlaW5nIHNldCBhcyB3ZWxsCj4+Pj4+Pj4gKikg aW50ZWxfaHBkX2lycV9zdG9ybV9kZXRlY3Qgd2lsbCBkZXRlY3QgdGhhdCB0aGlzIGlzIDZ0aCBo cGQgY2FsbCB3aXRoaW4KPj4+Pj4+PiB0aGUKPj4+Pj4+PiBIUERfU1RPUk1fREVURUNUX1BFUklP RCBhbmQgc28gd2lsbCBtYXJrIHRoZSBIUEQgc3RhdHVzIG9mIFBPUlRfQiB0bwo+Pj4+Pj4+IEhQ RF9NQVJLX0RJU0FCTEVECj4+Pj4+Pj4gKikgVGhpcyB3aWxsIHJlc3VsdCBpbiBIUEQgZm9yIFBP UlRfQiBiZWluZyBkaXNhYmxlZCBpbW1lZGlhdGVseShtYXNrZWQgaW4KPj4+Pj4+PiBjYXNlIG9m IExQVCkKPj4+Pj4+PiAqKSBpOTE1X2RpZ3BvcnRfd29ya19mdW5jIHdpbGwgYmUgcXVldWVkIGF0 IHRoZSBlbmQgb2YgdGhpcyBmdW5jdGlvbiwgc2luY2UKPj4+Pj4+PiBxdWV1ZV9kaWcgaXMgc2V0 Cj4+Pj4+Pj4gKikgb25jZSBpbiB0aGUgaTkxNV9kaWdwb3J0X3dvcmtfZnVuYywgaHBkX3B1bHNl IGZ1bmMgcG9pbnRlciB3aWxsIGJlCj4+Pj4+Pj4gZXhlY3V0ZWQgc2luY2UgaXQgaXMgZGVmaW5l ZCBmb3IgRFAKPj4+Pj4+PiAqKSBpbnRlbF9kcF9ocGRfcHVsc2UsIHdpbGwgaGF2ZSBsb25nX2hw ZCBzZXQgYW5kIHNpbmNlIHRoZSBwYW5lbCBpcyBwbHVnZ2VkCj4+Pj4+Pj4gaW4gc3RpbGwsCj4+ Pj4+Pj4gSVNSIHdpbGwgYmUgaGlnaCBhbmQgc28gd2lsbCByZXR1cm4gdHJ1ZS4KPj4+Pj4+PiAq KSBpbnRlbF9kcF9nZXRfZHBjZCwgd2lsbCBzdWNjZWVkIHNpbmNlIERQIGlzIGNvbm5lY3RlZAo+ Pj4+Pj4+ICopIGZpbmFsbHkgSVJRX0hBTkRMRUQgd2lsbCBiZSByZXR1cm5lZAo+Pj4+Pj4+ICop IG9uY2UgY2FsbCBleGl0cyBpbnRlbF9ocGRfaXJxX2hhbmRsZXIsIEhQRCBvbiBwb3J0IEIgd2ls bCBuZXZlciBiZQo+Pj4+Pj4+IGVuYWJsZWQgYWdhaW4KPj4+Pj4+PiAodW5tYXNrZWQgaW4gY2Fz ZSBvZiBMUFQpIGFuZCBubyBtb3JlIGhvdCBwbHVnIG5vdGlmaWNhdGlvbnMuCj4+Pj4+PiBUaGUg YXNzdW1wdGlvbiBvZiB0aGUgc3Rvcm0gY29kZSBpcyB0aGF0IHdoZW4gdGhlcmUgaXMgYSBEUCBz aW5rLCBhIHN0b3JtCj4+Pj4+PiB3aWxsIG5ldmVyIGhhcHBlbi4gV2UgbmVlZCB0aGF0IHNpbmNl IG90aGVyd2lzZSB0aGUgbXN0IGNvZGUgKHdoaWNoCj4+Pj4+PiBjcmVhdGVzIHJpZGljdWxvdXMg YW1vdW50cyBvZiBocGRzIG9uIHRoZSBEUCBwb3J0KSB3aWxsIHJ1biBpbnRvIHRoZSBzdG9ybQo+ Pj4+Pj4gZGV0ZWN0aW9uIGNvZGUgYWxsIHRoZSB0aW1lLgo+Pj4+Pj4KPj4+Pj4+IE1pZ2h0IGJl IGJldHRlciB0byBkb2N1bWVudCB0aGlzIGRlc2lnbiBhc3N1bXB0aW9uIHNvbWV3aGVyZSwgYnV0 IGl0IGlzCj4+Pj4+PiBiYWtlZCBpbi4gSGVuY2UgbXkgcXVlc3Rpb24gd2hldGhlciB5b3UndmUg c2VlbiB0aGlzIGhhcHBlbiBpbiB0aGUgcmVhbAo+Pj4+Pj4gd29ybGQgLSBEUCBzdG9ybXMgaGF2 ZW4ndCBiZWVuIG9ic2VydmVkIHlldCBhZmFpaywgYW5kIGl0IHdvdWxkIGJlIGEgbXVjaAo+Pj4+ Pj4gbW9yZSBzZXJpb3VzIHByb2JsZW0uCj4+Pj4+IFRoZSBkcCBzaG9ydCBob3RwbHVnIGlycXMg KHVzZWQgYnkgbXN0KSBhcmUgbm90IGNhdWdodCBieSB0aGUgaXJxIHN0b3JtCj4+Pj4+IGNvZGUs IGJ1dCB0aGUgbG9uZyBob3RwbHVnIGlycXMgYXJlLgo+Pj4+IFdlIGFzc3VtZSB0aGVyZSdzIG5v IERQIGhvdHBsdWcgc3Rvcm1zIGV2ZXIsIHdoZXRoZXIgbG9uZyBvciBzaG9ydCBwdWxzZXMuCj4+ Pj4gVHJ5aW5nIHRvIGZpeCB0aGF0IHdpbGwgcmVxdWlyZSBzZXJpb3VzIHJld29yayBzaW5jZSB3 ZSBuZWVkIHRvIHdhaXQgdW50aWwKPj4+PiBkaWdfcG9ydF93b3JrIGhhcyBydW4gdG8ga25vdyB3 aGV0aGVyIHRoZSBocGQgd2FzIGEgcmVhbCBvbmUgb3IganVzdAo+Pj4+IGZsdWN0dWF0aW9uLCBh bmQgb25seSB1cGRhdGUgc3Rvcm0gc3RhdGlzdGljIHRoZW4uIEFuZCBvbmNlIHdlIGRvIERQIGlz Cj4+Pj4gZXNzZW50aWFsbHkgYnJva2VuLCB3aGljaCBtZWFucyB3ZSBhbHNvIG5lZWQgdG8gZW5h YmxlIHBvbGxpbmcgZm9yIGRwIGF1eAo+Pj4+IHNob3J0IHB1bHNlcyAod2hpY2ggd2lsbCBwcm9i YWJseSBwaXNzIG9mZiBzb21lIHNpbmsgZGV2aWNlKS4KPj4+Pgo+Pj4+IEluIHNob3J0OiBJZiB5 b3UgaGF2ZSBhIGhwZCBzdG9ybSwgYW5kIHRoZXJlJ3Mgc29tZXRoaW5nIERQLWxpa2UKPj4+PiBj b25uZWN0ZWQsIHlvdSdyZSBzY3Jld2VkLiBVbnRpbCB3ZSBoYXZlIHJlYWwtd29ybGQgZXZpZGVu Y2Ugb2YgdGhpcwo+Pj4+IGhhcHBlbmluZyB1cGRhdGluZyBjb21tZW50cyBpcyByZWFsbHkgdGhl IG9ubHkgdGhpbmcgd2UgbmVlZC4KPj4+IEluIHRoYXQgY2FzZSB3ZSBzaG91bGQgdXBkYXRlIHRo ZSBjb2RlIHRvIG5ldmVyIGRvIGhvdHBsdWcgaXJxIHN0b3JtCj4+PiBkZXRlY3Rpb24gb24gZHAg bG9uZyBocGQsIHdoaWNoIHdlIGN1cnJlbnRseSBkby4KPj4gVGhlIEhQRCBwaW4gaXMgc2hhcmVk IGZvciBEUCBhbmQgSERNSSBzbyB3ZSBjYW4ndCBkaXNhYmxlIEhQRCBqdXN0IGZvcgo+PiBIRE1J IHdoZW4gYSBzdG9ybSBpcyBkZXRlY3RlZC4KPiBZdXAgdGhpcyBpcyB0aGUgY3J1eC4gVGhlIHJl YWwgZml4IHJlYWxseSBpcyB3aXJpbmcgdXAgSVJRX05PTkUgaGFuZGxpbmcKPiBhbGwgdGhlIHdh eSB0byBiZSBhYmxlIHRvIGRpZmZlcmVudGlhdGUgc3Rvcm1zIGZyb20gbm9ybWFsL2V4cGVjdGVk IGlycQo+IGxvYWQuIEJ1dCB0aGF0IHJlYWxseSBoYXMgdG8gd2FpdCB1bnRpbCB0aGlzIGhhcHBl bnMgaW4gcmVhbGl0eSBzb21ld2hlcmUKPiB3aXRoIGEgRFAgc2luay4KPiAtRGFuaWVsCj4Kd2hl biBjaGVja2luZyBpbnRlcm5hbGx5IGkgd2FzIGluZm9ybWVkIHRoYXQgRFAgaG90cGx1ZyBzdG9y bSBpcyBhbHNvIApub3JtYWwgbGlrZSBIRE1JCmlmIG5vdCBtb3JlIGZyZXF1ZW50LCBidXQgZm9y IG5vdyBpJ2xsIHdhaXQgdGlsbCB0aGlzIGNvbWVzIGFzIGEgcmVhbCAKd29ybGQgaXNzdWUgYW5k IGRyb3AgdGhpcwpwYXRjaC4KCi0tIHJlZ2FyZHMsIFNpdmFrdW1hcgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0Cklu dGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9y Zy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=