From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: [RFC PATCH 00/11] drm/i915: Expose OA metrics via perf PMU Date: Tue, 19 May 2015 16:53:37 +0200 Message-ID: <20150519145337.GD3644@twins.programming.kicks-ass.net> References: <1431008154-6833-1-git-send-email-robert@sixbynine.org> <20150508162452.GR27504@twins.programming.kicks-ass.net> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Robert Bragg Cc: dri-devel@lists.freedesktop.org, David Airlie , linux-api@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, Ingo Molnar , Paul Mackerras , Arnaldo Carvalho de Melo , Daniel Vetter List-Id: intel-gfx@lists.freedesktop.org T24gRnJpLCBNYXkgMTUsIDIwMTUgYXQgMDI6MDc6MjlBTSArMDEwMCwgUm9iZXJ0IEJyYWdnIHdy b3RlOgo+IE9uIEZyaSwgTWF5IDgsIDIwMTUgYXQgNToyNCBQTSwgUGV0ZXIgWmlqbHN0cmEgPHBl dGVyekBpbmZyYWRlYWQub3JnPiB3cm90ZToKPiA+IE9uIFRodSwgTWF5IDA3LCAyMDE1IGF0IDAz OjE1OjQzUE0gKzAxMDAsIFJvYmVydCBCcmFnZyB3cm90ZToKPiA+Cj4gPj4gSSd2ZSBjaGFuZ2Vk IHRoZSB1YXBpIGZvciBjb25maWd1cmluZyB0aGUgaTkxNV9vYSBzcGVjaWZpYyBhdHRyaWJ1dGVz Cj4gPj4gd2hlbiBjYWxsaW5nIHBlcmZfZXZlbnRfb3BlbigyKSB3aGVyZWJ5IGluc3RlYWQgb2Yg Y3JhbW1pbmcgbG90cyBvZgo+ID4+IGJpdGZpZWxkcyBpbnRvIHRoZSBwZXJmX2V2ZW50X2F0dHIg Y29uZmlnIG1lbWJlcnMsIEknbSBub3cKPiA+PiBkYWlzeS1jaGFpbmluZyBhIGRybV9pOTE1X29h X2V2ZW50X2F0dHJfdCBzdHJ1Y3R1cmUgb2ZmIG9mIGEgc2luZ2xlCj4gPj4gY29uZmlnIG1lbWJl ciB0aGF0J3MgZXh0ZW5zaWJsZSBhbmQgdmFsaWRhdGVkIGluIHRoZSBzYW1lIHdheSBhcyB0aGUK PiA+PiBwZXJmX2V2ZW50X2F0dHIgc3RydWN0LiBJJ3ZlIGZvdW5kIHRoaXMgbXVjaCBuaWNlciB0 byB3b3JrIHdpdGggd2hpbGUKPiA+PiBiZWluZyBuZWF0bHkgZXh0ZW5zaWJsZSB0b28uCj4gPgo+ ID4gVGhpcyB3b3JyaWVzIG1lIGEgYml0Li4gaXMgdGhlcmUgbW9yZSBiYWNrZ3JvdW5kIGZvciB0 aGlzPwo+IAo+IFdvdWxkIGl0IG1heWJlIGJlIGhlbHBmdWwgdG8gc2VlIHRoZSBiZWZvcmUgYW5k IGFmdGVyPyBJIGhhZCBrZXB0IHRoaXMKPiB1YXBpIGNoYW5nZSBpbiBhIHNlcGFyYXRlIHBhdGNo IGZvciBhIHdoaWxlIGxvY2FsbHkgYnV0IGluIHRoZSBlbmQKPiBkZWNpZGVkIHRvIHNxdWFzaCBp dCBiZWZvcmUgc2VuZGluZyBvdXQgbXkgdXBkYXRlZCBzZXJpZXMuCj4gCj4gQWx0aG91Z2ggSSBk aWQgZmluZCBpdCBhIGJpdCBhd2t3YXJkIHdpdGggdGhlIGJpdGZpZWxkcywgSSB3YXMgbWFpbmx5 Cj4gY29uY2VybmVkIGFib3V0IHRoZSBleHRlbnNpYmlsaXR5IG9mIHBhY2tpbmcgbG9naWNhbGx5 IHNlcGFyYXRlCj4gYXR0cmlidXRlcyBpbnRvIHRoZSBjb25maWcgbWVtYmVycyBhbmQgaGFkIGhl YXJkIHNpbWlsYXIgY29uY2VybnMgZnJvbQo+IGEgZmV3IG90aGVycyB3aG8gaGFkIGJlZW4gZXhw ZXJpbWVudGluZyB3aXRoIG15IHBhdGNoZXMgdG9vLgo+IAo+IEEgZmV3IHNpbXBsZSBhdHRyaWJ1 dGVzIEkgY2FuIHRoaW5rIG9mIGEudC5tIHRoYXQgd2UgbWlnaHQgd2FudCB0byBhZGQKPiBpbiB0 aGUgZnV0dXJlIGFyZToKPiAtIGNvbnRyb2wgb2YgdGhlIE9BQlVGRkVSIHNpemUKPiAtIGEgd2F5 IHRvIGFzayB0aGUga2VybmVsIHRvIGNvbGxlY3QgcmVwb3J0cyBhdCB0aGUgYmVnaW5uaW5nIGFu ZCBlbmQKPiBvZiBiYXRjaCBidWZmZXJzLCBpbiBhZGRpdGlvbiB0byBwZXJpb2RpYyByZXBvcnRz Cj4gLSBhbHRlcm5hdGl2ZSB3YXlzIHRvIHVuaXF1ZWx5IGlkZW50aWZ5IGEgY29udGV4dCB0byBz dXBwb3J0IHRvb2xzCj4gcHJvZmlsaW5nIGEgc2luZ2xlIGNvbnRleHQgbm90IG5lY2Vzc2FyaWx5 IG93bmVkIGJ5IHRoZSBjdXJyZW50Cj4gcHJvY2Vzcwo+IAo+IEl0IGNvdWxkIGFsc28gYmUgaW50 ZXJlc3RpbmcgdG8gZXhwb3NlIHNvbWUgY291bnRlciBjb25maWd1cmF0aW9uCj4gdGhyb3VnaCB0 aGVzZSBhdHRyaWJ1dGVzIHRvby4gRS5nLiBvbiBCcm9hZHdlbGwrIHdlIGhhdmUgMTQgJ0ZsZXhp YmxlCj4gRVUnIGNvdW50ZXJzIGluY2x1ZGVkIGluIHRoZSBPQSB1bml0IHJlcG9ydHMsIGVhY2gg d2l0aCBhIDE2Yml0Cj4gY29uZmlndXJhdGlvbi4KPiAKPiBJbiBhIG1vcmUgZXh0cmVtZSBjYXNl IGl0IG1pZ2h0IGFsc28gYmUgdXNlZnVsIHRvIGFsbG93IHVzZXJzcGFjZSB0bwo+IHNwZWNpZnkg YSBjb21wbGV0ZSBjb3VudGVyIGNvbmZpZywgd2hpY2ggKGRlcGVuZGluZyBvbiB0aGUKPiBjb25m aWd1cmF0aW9uKSBjb3VsZCBiZSBvdmVyIDEwMCAzMmJpdCB2YWx1ZXMgdG8gc2VsZWN0IHRoZSBj b3VudGVyCj4gc2lnbmFscyArIGNvbmZpZ3VyZSB0aGUgY29ycmVzcG9uZGluZyBjb21iaW5pbmcg bG9naWMuCj4gCj4gU2luY2UgdGhpcyBwbXUgaXMgaW4gYSBkZXZpY2UgZHJpdmVyIGl0IGFsc28g c2VlbWVkIHJlYXNvbmFibHkKPiBhcHByb3ByaWF0ZSB0byBkZS1jb3VwbGUgaXQgc2xpZ2h0bHkg ZnJvbSB0aGUgY29yZSBwZXJmX2V2ZW50X2F0dHIKPiBzdHJ1Y3R1cmUgYnkgYWxsb3dpbmcgZHJp dmVyIGV4dGVuc2libGUgYXR0cmlidXRlcy4KPiAKPiBJIHdvbmRlciBpZiBpdCBtaWdodCBiZSBs ZXNzIHdvcnJpc29tZSBpZiB0aGUgaTkxNV9vYV9jb3B5X2F0dHIoKSBjb2RlCj4gd2VyZSBpbnN0 ZWFkIGEgcmUtdXNhYmxlIHV0aWxpdHkgcGVyaGFwcyBtYWludGFpbmVkIGluIGV2ZW50cy9jb3Jl LmMsCj4gc28gaWYgb3RoZXIgcG11IGRyaXZlcnMgd2VyZSB0byBmb2xsb3cgc3VpdGUgdGhlcmUg d291bGQgYmUgbGVzcyByaXNrCj4gb2YgYSBtaXN0YWtlIGJlaW5nIG1hZGUgaGVyZT8KCgpTbyBJ IGhhZCBhIHBlZWsgYXQ6CgogIGh0dHBzOi8vMDEub3JnL3NpdGVzL2RlZmF1bHQvZmlsZXMvZG9j dW1lbnRhdGlvbi9vYnNlcnZhYmlsaXR5X3BlcmZvcm1hbmNlX2NvdW50ZXJzX2hhc3dlbGwucGRm CgpJbiBhbiBhdHRlbXB0IHRvIGluZm9ybSBteXNlbGYgb2YgaG93IHRoZSBoYXJkd2FyZSB3b3Jr ZWQuIEJ1dCB0aGUKZG9jdW1lbnQgaXMgcmF0aGVyIHNwYXJzZSAoYW5kIGRvZXMgbm90IGluY2x1 ZGUgYnJvYWR3ZWxsKS4KClNvIGZyb20gd2hhdCBJIGNhbiBnYXRoZXIgdGhlcmUncyB0d28gd2F5 cyB0byBvYnNlcnZlIHRoZSBjb3VudGVycywKdGhyb3VnaCBNTUlPIG9yIHRyb3VnaCB0aGUgcmlu Zy1idWZmZXIsIHdoaWNoIGluIHR1cm4gc2VlbXMgdHJpZ2dlcmVkIGJ5CmEgTUlfUkVQT1JUX1BF UkZfQ09VTlQgY29tbWFuZC4KClsgTm93IHRoZSBkb2N1bWVudCB0YWxrcyBhYm91dCBzaG9ydGNv bWluZ3Mgb2YgdGhpcyBzY2hlbWUsIHdoZXJlIHRoZQpNSV9SRVBPUlRfUEVSRl9DT1VOVCBjb21t YW5kIGNhbiBvbmx5IGJlIHBsYWNlZCBldmVyeSBvdGhlciBjb21tYW5kLCBidXQKYSBzaW5nbGUg Y29tbWFuZCBjYW4gY29udGFpbiBzbyBtdWNoIGNvbXB1dGF0aW9uIHRoYXQgdGhpcyBpcyBub3Qg ZmluZQpncmFpbmVkIGVub3VnaCAtLSBsZWFkaW5nIHRvIHRoZSBzdWdnZXN0aW9uIG9mIGEgdGlt ZXIvY3ljbGUgYmFzZWQKcmVwb3J0aW5nLCBidXQgdGhhdCBpcyBub3QgYWN0dWFsbHkgbWVudGlv bmVkIGFmYWljdCBdCgpOb3cgdGhlIE1JX1JFUE9SVF9QRVJGX0NPVU5UIGNhbiBzZWxlY3QgYSB2 ZWN0b3IgKENvdW50ZXIgU2VsZWN0KSBvZgp3aGljaCBldmVudHMgaXQgd2lsbCB3cml0ZSBvdXQu CgpUaGlzIGNvdmVycyB0aGUgcmVndWxhciAnQScgY291bnRlcnMuIElzIHRoaXMgY29ycmVjdD8K ClRoZW4gdGhlcmUgYXJlIHRoZSAnQicgY291bnRlcnMsIHdoaWNoIGFwcGVhciB0byBiZSBwcm9n cmFtbWFibGUgdGhyb3VnaAp0aGUgQ0VDIE1NSU8gcmVnaXN0ZXJzLgoKVGhlc2UgQiBldmVudHMg Y2FuIGFsc28gYmUgcGFydCBvZiB0aGUgTUlfUkVQT1JUX1BFUkZfQ09VTlQgdmVjdG9yLgoKUmln aHQ/CgoKU28gZm9yIG1lIHRoZSAnbmF0dXJhbCcgd2F5IHRvIHJlcHJlc2VudCB0aGlzIGluIHBl cmYgd291bGQgYmUgdGhyb3VnaApldmVudCBncm91cHMuIENyZWF0ZSBhIHBlcmYgZXZlbnQgZm9y IGV2ZXJ5IHNpbmdsZSBldmVudCAtLSB5ZXMgdGhpcyBpcwo1MyBldmVudHMuCgpVc2UgdGhlIE1N SU8gcmVhZHMgZm9yIHRoZSByZWd1bGFyIHJlYWQoKSBpbnRlcmZhY2UsIGFuZCB1c2UgYSBocnRp bWVyCnBsYWNpbmcgTUlfUkVQT1JUX1BFUkZfQ09VTlQgY29tbWFuZHMsIHdpdGggYSBjb3VudGVy IHNlbGVjdCBtYXNrCmNvdmVyaW5nIHRoZSBhbGwgZXZlbnRzIGluIHRoZSBjdXJyZW50IGdyb3Vw LCBmb3Igc2FtcGxpbmcuCgpUaGVuIG9idGFpbiB0aGUgdmVjdG9yIHZhbHVlcyB1c2luZyBQRVJG X1NBTVBMRV9SRUFEIGFuZApQRVJGX0ZPUk1BVF9SRUFEIC0tIGFuZCB1c2UgdGhlIHJlYWQgdHhu IHN1cHBvcnQgdG8gY29uc3VtZSB0aGUKcmluZy1idWZmZXIgdmVjdG9ycyBpbnN0ZWFkIG9mIHRo ZSBNTUlPIHJlZ2lzdGVycy4KCllvdSBjYW4gdXNlIHRoZSBwZXJmX2V2ZW50X2F0dHI6OmNvbmZp ZyB0byBzZWxlY3QgdGhlIGNvdW50ZXIgKEEwLUE0NCwKQjAtQjcpIGFuZCB1c2UgcGVyZl9ldmVu dF9hdHRyOjpjb25maWcxIChsb3cgYW5kIGhpZ2ggZHdvcmQpIGZvciB0aGUKY29ycmVzcG9uZGlu ZyBDRUMgcmVnaXN0ZXJzLgoKClRoaXMgZG9lcyBub3QgcmVxdWlyZSByYW5kb20gcGVyIGRyaXZl ciBBQkkgZXh0ZW50aW9ucyBmb3IKcGVyZl9ldmVudF9hdHRyLCBub3IgeW91ciBjdXN0b20gb3V0 cHV0IGZvcm1hdC4KCkFtIEkgbWlzc2luZyBzb21ldGhpbmcgb2J2aW91cyBoZXJlPwpfX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGlu ZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVk ZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=