From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maarten Lankhorst Subject: Re: [PATCH] drm/i915: Allow control of PSR at runtime through debugfs. Date: Thu, 22 Mar 2018 10:41:04 +0100 Message-ID: <39d8fea7-fa44-7183-e790-7c6a89f3c85d@linux.intel.com> References: <20180314215315.GW3945@intel.com> <20180315102827.30946-1-maarten.lankhorst@linux.intel.com> <1521684564.19788.53.camel@dk-H97M-D3H> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 007506E61B for ; Thu, 22 Mar 2018 09:41:06 +0000 (UTC) In-Reply-To: <1521684564.19788.53.camel@dk-H97M-D3H> 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: "Pandiyan, Dhinakaran" Cc: "intel-gfx@lists.freedesktop.org" , "Vivi, Rodrigo" List-Id: intel-gfx@lists.freedesktop.org T3AgMjItMDMtMTggb20gMDI6NDUgc2NocmVlZiBQYW5kaXlhbiwgRGhpbmFrYXJhbjoKPiBPbiBU aHUsIDIwMTgtMDMtMTUgYXQgMTE6MjggKzAxMDAsIE1hYXJ0ZW4gTGFua2hvcnN0IHdyb3RlOgo+ PiBDdXJyZW50bHkgdGVzdHMgbW9kaWZ5IGk5MTUuZW5hYmxlX3BzciBhbmQgdGhlbiBkbyBhIG1v ZGVzZXQgY3ljbGUKPj4gdG8gY2hhbmdlIFBTUi4gV2UgY2FuIHdyaXRlIGEgdmFsdWUgdG8gaTkx NV9lZHBfcHNyX3N0YXR1cyB0byBmb3JjZQo+PiBhIGNlcnRhaW4gdmFsdWUgd2l0aG91dCBhIG1v ZGVzZXQuCj4+Cj4+IFRvIHJldGFpbiBjb21wYXRpYmlsaXR5IHdpdGggb2xkZXIgdXNlcnNwYWNl LCB3ZSBhbHNvIHN0aWxsIGFsbG93Cj4+IHRoZSBvdmVycmlkZSB0aHJvdWdoIHRoZSBtb2R1bGUg cGFyYW1ldGVyLCBhbmQgYWRkIHNvbWUgdHJhY2tpbmcKPj4gdG8gY2hlY2sgd2hldGhlciBhIGRl YnVnZnMgbW9kZSBpcyBzcGVjaWZpZWQuCj4+Cj4gV2hpbGUgdGhpcyBpcyBzb21ldGhpbmcgd2Ug d2FudCB0byBiZSBhYmxlIHRvIGRvLCBJIGFtIGNvbmNlcm5lZCBhYm91dAo+IGFkZGluZyBtb3Jl IGNvbXBsZXhpdHkgdG8gYSBmZWF0dXJlIHRoYXQgaGFzIGJhcmVseSBiZWVuIHRlc3RlZC4KPgo+ IEhvdyBhYm91dCBkb2luZyBhIG1vZGVzZXQgYmVmb3JlIGZyb250YnVmZmVyX3RyYWNraW5nIFBT UiBzdWJ0ZXN0cyBhbmQKPiBvbmUgYXQgdGhlIGVuZD8gSSdtIGFzc3VtaW5nIGFsbCBvZiB0aGVt IGFyZSBncm91cGVkIHRvZ2V0aGVyLgoKQ3VycmVudGx5IHdlIHJ1biBhbGwgc3VidGVzdHMgaW5k aXZpZHVhbGx5LCB0aGlzIG1lYW5zIHRoYXQgd2UgYWxzbyBuZWVkIHRvIGRvCnNvbWUgZXh0cmEg bW9kZXNldHMgcGVyIHRlc3QuIE9uZSB0byBkaXNhYmxlIFBTUiBhbmQgY29sbGVjdCB0aGUgcmVm ZXJlbmNlIENSQywgdGhlCm90aGVyIHRvIGVuYWJsZSBQU1IgZm9yIHRoZSBhY3R1YWwgdGVzdC4K CldpdGggdGhlc2UgY2hhbmdlcywgd2UgZG9uJ3QgbmVlZCB0byBkbyBzby4KCgo+IENvbW1lbnRz IG9uIHRoaXMgcGF0Y2ggaXRzZWxmLgo+IDEpIHBsZWFzZSBzcGxpdCBpbnRlbF9wc3JfZGVmYXVs dF9saW5rX3N0YW5kYnkoKSBpbnRvIGEgc2VwYXJhdGUgcGF0Y2guCldpbGwgZG8uCj4gMikgaG93 IGRvZXMgdGhlIHVzZXIga25vdyB3aGF0IHZhbHVlcyB0byB3cml0ZSB3aXRob3V0IGxvb2tpbmcg YXQgdGhlCj4gY29kZT8KV2UgbWF0Y2ggdGhlIG1vZHBhcmFtIG9wdGlvbnMgZm9yIGk5MTUuZW5h YmxlX3BzciwgYnV0IGluIGdlbmVyYWwKdXNlciBzaG91bGRuJ3QgdG91Y2ggaXQgdW5sZXNzIGFz a2VkIHRvLiA6KSBUaGlzIGlzIG1vc3RseSBtZWFudCBmb3IgSUdUIHRlc3RzLApjb3VsZCBhbHNv IGJlIHVzZWZ1bCBmb3IgZGVidWdnaW5nIGk5MTUgaW4gZ2VuZXJhbCB0aG91Z2guCgpCdXQgaWYg eW91IHJlYWxseSB3YW50LCBwZXJoYXBzIGlmIHdlIHNvbWVvbmUgd3JpdGVzIGFuIGludmFsaWQg dmFsdWUsIHdlIGNvdWxkIGFsc28Kb3V0cHV0IHRoZSBwb3NzaWJsZSB2YWx1ZXMgdG8gZGVidWdm cz8gVGhvdWdoIEkgZG9uJ3QgdGhpbmsgd2Ugb3VnaHQgdG8uIGRlYnVnZnMKZG9lc24ndCBhbHdh eXMgaGF2ZSBkb2N1bWVudGF0aW9uLgo+IDMpIENhbiB0aGUgY29ubmVjdG9yIGFuZCBjcnRjIGJl IHN0b3JlZCBzb21ld2hlcmUgdG8gYXZvaWQgbG9vcHM/CmludGVsX3Bzcl9zZXRfZGVidWdmcyBt b2RlIGNoZWNrcyBmb3IgaWRsZW5lc3MgYW5kIHdhaXRzIGZvciBhbGwgYXRvbWljIGNvbW1pdHMg dG8gY29tcGxldGUuCldlIG5lZWQgdGhlIEhXIHN0YXRlIHRvIHRvZ2dsZSBQU1IsIGFuZCB0aGlz IGlzIHRoZSBvbmx5IHdheSB0byBndWFyYW50ZWUgdGhhdCBjcnRjLT5zdGF0ZSBtYXRjaGVzCnRo ZSBhY3R1YWwgaHcgc3RhdGUuCgpJZiB3ZSBkb24ndCBkcm9wIHRoZSBwc3IgbG9jaywgd2Ugd291 bGQgZ2V0IGEgZGVhZGxvY2sgd2hlbiBpbnRlbF9wc3JfZW5hYmxlL2Rpc2FibGUgaXMgY2FsbGVk IGZyb20gLmNydGNfZGlzYWJsZSwKYmVjYXVzZSB3ZSB3YWl0IGZvciBod19kb25lIHdpdGggcHNy IGxvY2sgYWxyZWFkeSB0YWtlbi4KPiA0KSBIYXMgdGhpcyBiZWVuIHRlc3RlZCBvbiBhbnkgcGxh dGZvcm1zIHdpdGggUFNSPwpJJ3ZlIGhhZCBzb21lb25lIHRlc3QgdjEgb24gYSBQU1IgY2FwYWJs ZSBzeXN0ZW0uIEl0IGh1bmcgaW4gdGhlIHNhbWUgd2F5IGFzIGVuYWJsaW5nIFBTUiBkdXJpbmcg Ym9vdCBkaWQsCnNvIHRoYXQgcGFydCBpcyB0aGUgc2FtZS4KCkZvciB0aGUgbGF0ZXIgcGF0Y2hl cyBJIHVzZWQgZjItY25sLWFscGhhLCBidXQgdGhhdCBzeXN0ZW0gaGFuZ3MgYSBmZXcgc2Vjb25k cyAvIGhhbGYgYSBtaW51dGUgYWZ0ZXIgbG9hZGluZyBpOTE1LgpTdGlsbCBnYXZlIG1lIGVub3Vn aCB0aW1lIHRvIGNoZWNrIHdlIGNhbiB3cml0ZSBhbnkgdmFsdWUgdG8gZGVidWdmcy4KCj4gNSkg RG8gc3VidGVzdHMgbmVlZCBhIGZpbmVyIGNvbnRyb2wgb2YgUFNSIGkuZS4sIHBzcl9leGl0KCkg YW5kCj4gcHNyX2FjdGl2YXRlKCkgaW5zdGVhZCBvZiBlbmFibGUgYW5kIGRpc2FibGUKTm90IGFm YWljdC4gV2Ugc29tZXRpbWVzIGludmFsaWRhdGUgdGhlIEZCIHdpdGggZGlydHlmYiwgYnV0IHRo YXQncyBhbGwgdGhlIGNvbnRyb2wgd2UgbmVlZCBJIHRoaW5rLgoKfk1hYXJ0ZW4KX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcg bGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRl c2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==