From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [PATCH 2/4] drm/i915: Compute sink's max lane count/link BW at Hotplug Date: Tue, 13 Dec 2016 16:28:13 +0200 Message-ID: <87y3zjsy2q.fsf@intel.com> References: <1480984058-552-1-git-send-email-manasi.d.navare@intel.com> <1480984058-552-3-git-send-email-manasi.d.navare@intel.com> <874m2eglno.fsf@intel.com> <20161208214831.GB26051@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20161208214831.GB26051@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Manasi Navare Cc: Daniel Vetter , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gVGh1LCAwOCBEZWMgMjAxNiwgTWFuYXNpIE5hdmFyZSA8bWFuYXNpLmQubmF2YXJlQGludGVs LmNvbT4gd3JvdGU6Cj4gRGFuaWVsLCBjYW4gd2UgbWVyZ2UgdGhpcyBwYXRjaD8KClB1c2hlZCB0 aGlzIG9uZSB0byBkaW5xLCB0aGFua3MgZm9yIHRoZSBwYXRjaC4KCkJSLApKYW5pLgoKCj4gSXQg aGFzIG5vIGRlcGVuZGVuY3kgb24gb3RoZXIgbGluayB0cmFpbiBwYXRjaGVzLAo+IGl0IGlzIGp1 c3QgYSBjbGVhbiB1cCBmb3IgdGhlIGV4aXN0aW5nIGRyaXZlciBjb2RlIHRoYXQKPiB1c2VzIG1h eCBsaW5rIHJhdGUgYW5kIGxhbmUgY291bnQgdmFsdWVzLgo+IE90aGVyIGxpbmsgdHJhaW4gcGF0 Y2hlcyBoYXZlIGRlcGVuZGVuY3kgb24gdGhpcyB0aGF0cyB3aHkKPiBpdCB3YXMgcGFydCBvZiB0 aGUgc2VyaWVzLgo+IEJ1dCBpdCB3b3VsZCBiZSBncmVhdCBpZiB0aGlzIGdldHMgbWVyZ2VkIHNv IHRoYXQgaSBkb250IGhhdmUgdG8KPiByZWJhc2UgaXQgdHJlbWVuZG91c2x5IGFmdGVyIDMgd2Vl a3Mgd2hlbiBJIGFtIGJhY2sgYW5kIHBsdXMKPiBpdHMgZ29vZCBmb3IgdGhlIGRyaXZlciB0byBz dGFydCB1c2luZyB0aGlzIGNsZWFuIHVwLiBUaGlzIGtpbmQKPiBvZiBjbGVhbiB1cCB3YXMgbG9u ZyBkdWUuCj4KPiBSZWdhcmRzCj4gTWFuYXNpCj4KPiBPbiBUaHUsIERlYyAwOCwgMjAxNiBhdCAx MToyMzozOVBNICswMjAwLCBKYW5pIE5pa3VsYSB3cm90ZToKPj4gT24gVHVlLCAwNiBEZWMgMjAx NiwgTWFuYXNpIE5hdmFyZSA8bWFuYXNpLmQubmF2YXJlQGludGVsLmNvbT4gd3JvdGU6Cj4+ID4g U2luaydzIGNhcGFiaWxpdGllcyBhcmUgYWR2ZXJ0aXNlZCB0aHJvdWdoIERQQ0QgcmVnaXN0ZXJz IGFuZCBnZXQKPj4gPiB1cGRhdGVkIG9ubHkgb24gaG90cGx1Zy4gU28gdGhleSBzaG91bGQgYmUg Y29tcHV0ZWQgb25seSBvbmNlIGluIHRoZQo+PiA+IGxvbmcgcHVsc2UgaGFuZGxlciBhbmQgc2F2 ZWQgb2ZmIGluIGludGVsX2RwIHN0cnVjdHVyZSBmb3IgdGhlIHVzZQo+PiA+IGxhdGVyLiBGb3Ig dGhpcyByZWFzb24gdHdvIG5ldyBmaWVsZHMgbWF4X3NpbmtfbGFuZV9jb3VudCBhbmQKPj4gPiBt YXhfc2lua19saW5rX2J3IGFyZSBhZGRlZCB0byBpbnRlbF9kcCBzdHJ1Y3R1cmUuCj4+ID4KPj4g PiBUaGlzIGFsc28gc2ltcGxpZmllcyB0aGUgZmFsbGJhY2sgbGluayByYXRlL2xhbmUgY291bnQg bG9naWMKPj4gPiB0byBoYW5kbGUgbGluayB0cmFpbmluZyBmYWlsdXJlLiBJbiB0aGF0IGNhc2Us IHRoZSBtYXhfc2lua19saW5rX2J3Cj4+ID4gYW5kIG1heF9zaW5rX2xhbmVfY291bnQgY2FuIGJl IHJlY2NvbXB1dGVkIHRvIG1hdGNoIHRoZSBmYWxsYmFjawo+PiA+IHZhbHVlcyBsb3dlcmluZyB0 aGUgc2luayBjYXBhYmlsaXRpZXMgZHVlIHRvIGxpbmsgdHJhaW4gZmFpbHVyZS4KPj4gPgo+PiA+ IENjOiBWaWxsZSBTeXJqYWxhIDx2aWxsZS5zeXJqYWxhQGxpbnV4LmludGVsLmNvbT4KPj4gPiBD YzogSmFuaSBOaWt1bGEgPGphbmkubmlrdWxhQGxpbnV4LmludGVsLmNvbT4KPj4gPiBDYzogRGFu aWVsIFZldHRlciA8ZGFuaWVsLnZldHRlckBpbnRlbC5jb20+Cj4+ID4gU2lnbmVkLW9mZi1ieTog TWFuYXNpIE5hdmFyZSA8bWFuYXNpLmQubmF2YXJlQGludGVsLmNvbT4KPj4gCj4+IFJldmlld2Vk LWJ5OiBKYW5pIE5pa3VsYSA8amFuaS5uaWt1bGFAaW50ZWwuY29tPgo+PiAKPj4gRXZlbnR1YWxs eSB3ZSBtYXkgd2FudCB0byBjYWxsIHRoZSBmaWVsZHMgKmxpbmsqIHJhdGVzLCBiZWNhdXNlIHRo YXQncwo+PiB3aGF0IHRoZXknbGwgZWZmZWN0aXZlbHkgYmUuIFRyYW5zaWVudCB2YWx1ZXMgdGhh dCBkb24ndCByZWZsZWN0IHRoZQo+PiBzaW5rIG9yIHNvdXJjZSBjYXBhYmlsaXRpZXMsIGJ1dCB0 aGUgbGluayBjYXBhYmlsaXRpZXMuCj4+IAo+PiA+IC0tLQo+PiA+ICBkcml2ZXJzL2dwdS9kcm0v aTkxNS9pbnRlbF9kcC5jICB8IDEwICsrKysrKysrLS0KPj4gPiAgZHJpdmVycy9ncHUvZHJtL2k5 MTUvaW50ZWxfZHJ2LmggfCAgNCArKysrCj4+ID4gIDIgZmlsZXMgY2hhbmdlZCwgMTIgaW5zZXJ0 aW9ucygrKSwgMiBkZWxldGlvbnMoLSkKPj4gPgo+PiA+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dw dS9kcm0vaTkxNS9pbnRlbF9kcC5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYwo+ PiA+IGluZGV4IGRiNzViYjkuLjQzNGRjN2QgMTAwNjQ0Cj4+ID4gLS0tIGEvZHJpdmVycy9ncHUv ZHJtL2k5MTUvaW50ZWxfZHAuYwo+PiA+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVs X2RwLmMKPj4gPiBAQCAtMTU2LDcgKzE1Niw3IEBAIHN0YXRpYyB1OCBpbnRlbF9kcF9tYXhfbGFu ZV9jb3VudChzdHJ1Y3QgaW50ZWxfZHAgKmludGVsX2RwKQo+PiA+ICAJdTggc291cmNlX21heCwg c2lua19tYXg7Cj4+ID4gIAo+PiA+ICAJc291cmNlX21heCA9IGludGVsX2RpZ19wb3J0LT5tYXhf bGFuZXM7Cj4+ID4gLQlzaW5rX21heCA9IGRybV9kcF9tYXhfbGFuZV9jb3VudChpbnRlbF9kcC0+ ZHBjZCk7Cj4+ID4gKwlzaW5rX21heCA9IGludGVsX2RwLT5tYXhfc2lua19sYW5lX2NvdW50Owo+ PiA+ICAKPj4gPiAgCXJldHVybiBtaW4oc291cmNlX21heCwgc2lua19tYXgpOwo+PiA+ICB9Cj4+ ID4gQEAgLTIxMyw3ICsyMTMsNyBAQCBzdGF0aWMgdTggaW50ZWxfZHBfbWF4X2xhbmVfY291bnQo c3RydWN0IGludGVsX2RwICppbnRlbF9kcCkKPj4gPiAgCj4+ID4gIAkqc2lua19yYXRlcyA9IGRl ZmF1bHRfcmF0ZXM7Cj4+ID4gIAo+PiA+IC0JcmV0dXJuIChpbnRlbF9kcF9tYXhfbGlua19idyhp bnRlbF9kcCkgPj4gMykgKyAxOwo+PiA+ICsJcmV0dXJuIChpbnRlbF9kcC0+bWF4X3NpbmtfbGlu a19idyA+PiAzKSArIDE7Cj4+ID4gIH0KPj4gPiAgCj4+ID4gIHN0YXRpYyBpbnQKPj4gPiBAQCAt NDM5NSw2ICs0Mzk1LDEyIEBAIHN0YXRpYyBib29sIGludGVsX2RpZ2l0YWxfcG9ydF9jb25uZWN0 ZWQoc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2LAo+PiA+ICAJCSAgICAgIHllc25v KGludGVsX2RwX3NvdXJjZV9zdXBwb3J0c19oYnIyKGludGVsX2RwKSksCj4+ID4gIAkJICAgICAg eWVzbm8oZHJtX2RwX3RwczNfc3VwcG9ydGVkKGludGVsX2RwLT5kcGNkKSkpOwo+PiA+ICAKPj4g PiArCS8qIFNldCB0aGUgbWF4IGxhbmUgY291bnQgZm9yIHNpbmsgKi8KPj4gPiArCWludGVsX2Rw LT5tYXhfc2lua19sYW5lX2NvdW50ID0gZHJtX2RwX21heF9sYW5lX2NvdW50KGludGVsX2RwLT5k cGNkKTsKPj4gPiArCj4+ID4gKwkvKiBTZXQgdGhlIG1heCBsaW5rIEJXIGZvciBzaW5rICovCj4+ ID4gKwlpbnRlbF9kcC0+bWF4X3NpbmtfbGlua19idyA9IGludGVsX2RwX21heF9saW5rX2J3KGlu dGVsX2RwKTsKPj4gPiArCj4+ID4gIAlpbnRlbF9kcF9wcmludF9yYXRlcyhpbnRlbF9kcCk7Cj4+ ID4gIAo+PiA+ICAJaW50ZWxfZHBfcmVhZF9kZXNjKGludGVsX2RwKTsKPj4gPiBkaWZmIC0tZ2l0 IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHJ2LmggYi9kcml2ZXJzL2dwdS9kcm0vaTkx NS9pbnRlbF9kcnYuaAo+PiA+IGluZGV4IGZkNzdhM2IuLmI2NTI2YWQgMTAwNjQ0Cj4+ID4gLS0t IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHJ2LmgKPj4gPiArKysgYi9kcml2ZXJzL2dw dS9kcm0vaTkxNS9pbnRlbF9kcnYuaAo+PiA+IEBAIC05MDYsNiArOTA2LDEwIEBAIHN0cnVjdCBp bnRlbF9kcCB7Cj4+ID4gIAkvKiBzaW5rIHJhdGVzIGFzIHJlcG9ydGVkIGJ5IERQX1NVUFBPUlRF RF9MSU5LX1JBVEVTICovCj4+ID4gIAl1aW50OF90IG51bV9zaW5rX3JhdGVzOwo+PiA+ICAJaW50 IHNpbmtfcmF0ZXNbRFBfTUFYX1NVUFBPUlRFRF9SQVRFU107Cj4+ID4gKwkvKiBNYXggbGFuZSBj b3VudCBmb3IgdGhlIHNpbmsgYXMgcGVyIERQQ0QgcmVnaXN0ZXJzICovCj4+ID4gKwl1aW50OF90 IG1heF9zaW5rX2xhbmVfY291bnQ7Cj4+ID4gKwkvKiBNYXggbGluayBCVyBmb3IgdGhlIHNpbmsg YXMgcGVyIERQQ0QgcmVnaXN0ZXJzICovCj4+ID4gKwlpbnQgbWF4X3NpbmtfbGlua19idzsKPj4g PiAgCS8qIHNpbmsgb3IgYnJhbmNoIGRlc2NyaXB0b3IgKi8KPj4gPiAgCXN0cnVjdCBpbnRlbF9k cF9kZXNjIGRlc2M7Cj4+ID4gIAlzdHJ1Y3QgZHJtX2RwX2F1eCBhdXg7Cj4+IAo+PiAtLSAKPj4g SmFuaSBOaWt1bGEsIEludGVsIE9wZW4gU291cmNlIFRlY2hub2xvZ3kgQ2VudGVyCgotLSAKSmFu aSBOaWt1bGEsIEludGVsIE9wZW4gU291cmNlIFRlY2hub2xvZ3kgQ2VudGVyCl9fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxp c3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNr dG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=