From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH 1/3] drm/i915/gen9_bc: Work around DMC bug zeroing power well requests Date: Fri, 9 Nov 2018 17:04:40 +0200 Message-ID: <20181109150440.GL9144@intel.com> References: <20181109145822.15446-1-imre.deak@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id A7EFC6E68E for ; Fri, 9 Nov 2018 15:04:44 +0000 (UTC) Content-Disposition: inline In-Reply-To: <20181109145822.15446-1-imre.deak@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Imre Deak Cc: intel-gfx@lists.freedesktop.org, Daniel Vetter List-Id: intel-gfx@lists.freedesktop.org T24gRnJpLCBOb3YgMDksIDIwMTggYXQgMDQ6NTg6MjBQTSArMDIwMCwgSW1yZSBEZWFrIHdyb3Rl Ogo+IEEgRE1DIGJ1ZyBvbiBHRU45IGJpZyBjb3JlIG1hY2hpbmVzIGZhaWxzIHRvIHJlc3RvcmUg dGhlIGRyaXZlcidzCj4gcmVxdWVzdCBiaXRzIGZvciB0aGUgUFcxIGFuZCBNSVNDX0lPIHBvd2Vy IHdlbGxzIGFmdGVyIGEgREM1LzYKPiBlbnRyeS0+ZXhpdCBzZXF1ZW5jZS4gQXMgYSBjb25zZXF1 ZW5jZSB0aGUgZHJpdmVyJ3Mgc3Vic2VxdWVudCBjaGVjayBmb3IKPiB0aGUgZW5hYmxlZCBzdGF0 dXMgb2YgdGhlc2UgcG93ZXIgd2VsbHMgd2lsbCBmYWlsLCBhcyB0aGUgY2hlY2sKPiBjb25zaWRl cnMgdGhlIHBvd2VyIHdlbGxzIGJlaW5nIGVuYWJsZWQgb25seSBpZiBib3RoIHRoZSBzdGF0dXMg YW5kCj4gcmVxdWVzdCBiaXRzIGFyZSBzZXQuIFRvIHdvcmsgYXJvdW5kIHRoaXMgYm9ycm93IHRo ZSByZXF1ZXN0IGJpdHMgZnJvbQo+IEJJT1MncyBvd24gcmVxdWVzdCByZWdpc3RlciBpbiB3aGlj aCBETUMgZm9yY2VzIG9uIHRoZSByZXF1ZXN0IGJpdHMgd2hlbgo+IGV4aXRpbmcgZnJvbSBEQzUv Ni4KPiAKPiBUaGlzIGZpeGVzIGEgcHJvYmxlbSByZXBvcnRlZCBieSBSYW1hbGluZ2FtLCB3aGVy ZSBIRENQIGluaXQgZmFpbGVkLAo+IHNpbmNlIFBXMSByZXBvcnRlZCBpdHNlbGYgYXMgYmVpbmcg ZGlzYWJsZWQsIHdoaWxlIGluIHJlYWxpdHkgaXQgd2FzCj4gZW5hYmxlZC4KPiAKPiBSZXBvcnRl ZC1ieTogUmFtYWxpbmdhbSBDIDxyYW1hbGluZ2FtLmNAaW50ZWwuY29tPgo+IENjOiBSYW1hbGlu Z2FtIEMgPHJhbWFsaW5nYW0uY0BpbnRlbC5jb20+Cj4gQ2M6IERhbmllbCBWZXR0ZXIgPGRhbmll bC52ZXR0ZXJAZmZ3bGwuY2g+Cj4gQ2M6IFZpbGxlIFN5cmrDpGzDpCA8dmlsbGUuc3lyamFsYUBs aW51eC5pbnRlbC5jb20+Cj4gU2lnbmVkLW9mZi1ieTogSW1yZSBEZWFrIDxpbXJlLmRlYWtAaW50 ZWwuY29tPgo+IC0tLQo+ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9ydW50aW1lX3BtLmMg fCAxNiArKysrKysrKysrKysrKystCj4gIDEgZmlsZSBjaGFuZ2VkLCAxNSBpbnNlcnRpb25zKCsp LCAxIGRlbGV0aW9uKC0pCj4gCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2lu dGVsX3J1bnRpbWVfcG0uYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3J1bnRpbWVfcG0u Ywo+IGluZGV4IGY5NDVkYjZlYTQyMC4uOWM0OWI4NzYwNTVkIDEwMDY0NAo+IC0tLSBhL2RyaXZl cnMvZ3B1L2RybS9pOTE1L2ludGVsX3J1bnRpbWVfcG0uYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2Ry bS9pOTE1L2ludGVsX3J1bnRpbWVfcG0uYwo+IEBAIC00OTMsMTEgKzQ5MywyNSBAQCBzdGF0aWMg Ym9vbCBoc3dfcG93ZXJfd2VsbF9lbmFibGVkKHN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZf cHJpdiwKPiAgCQkJCSAgIHN0cnVjdCBpOTE1X3Bvd2VyX3dlbGwgKnBvd2VyX3dlbGwpCj4gIHsK PiAgCWNvbnN0IHN0cnVjdCBpOTE1X3Bvd2VyX3dlbGxfcmVncyAqcmVncyA9IHBvd2VyX3dlbGwt PmRlc2MtPmhzdy5yZWdzOwo+ICsJZW51bSBpOTE1X3Bvd2VyX3dlbGxfaWQgaWQgPSBwb3dlcl93 ZWxsLT5kZXNjLT5pZDsKPiAgCWludCBwd19pZHggPSBwb3dlcl93ZWxsLT5kZXNjLT5oc3cuaWR4 Owo+ICAJdTMyIG1hc2sgPSBIU1dfUFdSX1dFTExfQ1RMX1JFUShwd19pZHgpIHwKPiAgCQkgICBI U1dfUFdSX1dFTExfQ1RMX1NUQVRFKHB3X2lkeCk7Cj4gKwl1MzIgdmFsOwo+ICsKPiArCXZhbCA9 IEk5MTVfUkVBRChyZWdzLT5kcml2ZXIpOwo+ICsKPiArCS8qCj4gKwkgKiBPbiBHRU45IGJpZyBj b3JlIGR1ZSB0byBhIERNQyBidWcgdGhlIGRyaXZlcidzIHJlcXVlc3QgYml0cyBmb3IgUFcxCj4g KwkgKiBhbmQgdGhlIE1JU0NfSU8gUFcgd2lsbCBiZSBub3QgcmVzdG9yZWQsIHNvIGNoZWNrIGlu c3RlYWQgZm9yIHRoZQo+ICsJICogQklPUydzIG93biByZXF1ZXN0IGJpdHMsIHdoaWNoIGFyZSBm b3JjZWQtb24gZm9yIHRoZXNlIHBvd2VyIHdlbGxzCj4gKwkgKiB3aGVuIGV4aXRpbmcgREM1LzYu Cj4gKwkgKi8KPiArCWlmIChJU19HRU45KGRldl9wcml2KSAmJiAhSVNfR0VOOV9MUChkZXZfcHJp dikgJiYKCklTX0dFTjlfQkMoKSA/CgpBcGFydCBmcm9tIHRoYXQKUmV2aWV3ZWQtYnk6IFZpbGxl IFN5cmrDpGzDpCA8dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+Cgo+ICsJICAgIChpZCA9 PSBTS0xfRElTUF9QV18xIHx8IGlkID09IFNLTF9ESVNQX1BXX01JU0NfSU8pKQo+ICsJCXZhbCB8 PSBJOTE1X1JFQUQocmVncy0+Ymlvcyk7Cj4gIAo+IC0JcmV0dXJuIChJOTE1X1JFQUQocmVncy0+ ZHJpdmVyKSAmIG1hc2spID09IG1hc2s7Cj4gKwlyZXR1cm4gKHZhbCAmIG1hc2spID09IG1hc2s7 Cj4gIH0KPiAgCj4gIHN0YXRpYyB2b2lkIGFzc2VydF9jYW5fZW5hYmxlX2RjOShzdHJ1Y3QgZHJt X2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYpCj4gLS0gCj4gMi4xMy4yCgotLSAKVmlsbGUgU3lyasOk bMOkCkludGVsCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f CkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpo dHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=