From mboxrd@z Thu Jan 1 00:00:00 1970 From: Imre Deak Subject: Re: [PATCH 1/3] drm/i915/gen9_bc: Work around DMC bug zeroing power well requests Date: Fri, 9 Nov 2018 19:48:48 +0200 Message-ID: <20181109174848.GA14464@ideak-desk.fi.intel.com> References: <20181109145822.15446-1-imre.deak@intel.com> <20181109150440.GL9144@intel.com> Reply-To: imre.deak@intel.com Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2B6BA89831 for ; Fri, 9 Nov 2018 17:48:51 +0000 (UTC) Content-Disposition: inline In-Reply-To: <20181109150440.GL9144@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Cc: intel-gfx@lists.freedesktop.org, Daniel Vetter List-Id: intel-gfx@lists.freedesktop.org T24gRnJpLCBOb3YgMDksIDIwMTggYXQgMDU6MDQ6NDBQTSArMDIwMCwgVmlsbGUgU3lyasOkbMOk IHdyb3RlOgo+IE9uIEZyaSwgTm92IDA5LCAyMDE4IGF0IDA0OjU4OjIwUE0gKzAyMDAsIEltcmUg RGVhayB3cm90ZToKPiA+IEEgRE1DIGJ1ZyBvbiBHRU45IGJpZyBjb3JlIG1hY2hpbmVzIGZhaWxz IHRvIHJlc3RvcmUgdGhlIGRyaXZlcidzCj4gPiByZXF1ZXN0IGJpdHMgZm9yIHRoZSBQVzEgYW5k IE1JU0NfSU8gcG93ZXIgd2VsbHMgYWZ0ZXIgYSBEQzUvNgo+ID4gZW50cnktPmV4aXQgc2VxdWVu Y2UuIEFzIGEgY29uc2VxdWVuY2UgdGhlIGRyaXZlcidzIHN1YnNlcXVlbnQgY2hlY2sgZm9yCj4g PiB0aGUgZW5hYmxlZCBzdGF0dXMgb2YgdGhlc2UgcG93ZXIgd2VsbHMgd2lsbCBmYWlsLCBhcyB0 aGUgY2hlY2sKPiA+IGNvbnNpZGVycyB0aGUgcG93ZXIgd2VsbHMgYmVpbmcgZW5hYmxlZCBvbmx5 IGlmIGJvdGggdGhlIHN0YXR1cyBhbmQKPiA+IHJlcXVlc3QgYml0cyBhcmUgc2V0LiBUbyB3b3Jr IGFyb3VuZCB0aGlzIGJvcnJvdyB0aGUgcmVxdWVzdCBiaXRzIGZyb20KPiA+IEJJT1MncyBvd24g cmVxdWVzdCByZWdpc3RlciBpbiB3aGljaCBETUMgZm9yY2VzIG9uIHRoZSByZXF1ZXN0IGJpdHMg d2hlbgo+ID4gZXhpdGluZyBmcm9tIERDNS82Lgo+ID4gCj4gPiBUaGlzIGZpeGVzIGEgcHJvYmxl bSByZXBvcnRlZCBieSBSYW1hbGluZ2FtLCB3aGVyZSBIRENQIGluaXQgZmFpbGVkLAo+ID4gc2lu Y2UgUFcxIHJlcG9ydGVkIGl0c2VsZiBhcyBiZWluZyBkaXNhYmxlZCwgd2hpbGUgaW4gcmVhbGl0 eSBpdCB3YXMKPiA+IGVuYWJsZWQuCj4gPiAKPiA+IFJlcG9ydGVkLWJ5OiBSYW1hbGluZ2FtIEMg PHJhbWFsaW5nYW0uY0BpbnRlbC5jb20+Cj4gPiBDYzogUmFtYWxpbmdhbSBDIDxyYW1hbGluZ2Ft LmNAaW50ZWwuY29tPgo+ID4gQ2M6IERhbmllbCBWZXR0ZXIgPGRhbmllbC52ZXR0ZXJAZmZ3bGwu Y2g+Cj4gPiBDYzogVmlsbGUgU3lyasOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4LmludGVsLmNv bT4KPiA+IFNpZ25lZC1vZmYtYnk6IEltcmUgRGVhayA8aW1yZS5kZWFrQGludGVsLmNvbT4KPiA+ IC0tLQo+ID4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3J1bnRpbWVfcG0uYyB8IDE2ICsr KysrKysrKysrKysrKy0KPiA+ICAxIGZpbGUgY2hhbmdlZCwgMTUgaW5zZXJ0aW9ucygrKSwgMSBk ZWxldGlvbigtKQo+ID4gCj4gPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50 ZWxfcnVudGltZV9wbS5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcnVudGltZV9wbS5j Cj4gPiBpbmRleCBmOTQ1ZGI2ZWE0MjAuLjljNDliODc2MDU1ZCAxMDA2NDQKPiA+IC0tLSBhL2Ry aXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3J1bnRpbWVfcG0uYwo+ID4gKysrIGIvZHJpdmVycy9n cHUvZHJtL2k5MTUvaW50ZWxfcnVudGltZV9wbS5jCj4gPiBAQCAtNDkzLDExICs0OTMsMjUgQEAg c3RhdGljIGJvb2wgaHN3X3Bvd2VyX3dlbGxfZW5hYmxlZChzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0 ZSAqZGV2X3ByaXYsCj4gPiAgCQkJCSAgIHN0cnVjdCBpOTE1X3Bvd2VyX3dlbGwgKnBvd2VyX3dl bGwpCj4gPiAgewo+ID4gIAljb25zdCBzdHJ1Y3QgaTkxNV9wb3dlcl93ZWxsX3JlZ3MgKnJlZ3Mg PSBwb3dlcl93ZWxsLT5kZXNjLT5oc3cucmVnczsKPiA+ICsJZW51bSBpOTE1X3Bvd2VyX3dlbGxf aWQgaWQgPSBwb3dlcl93ZWxsLT5kZXNjLT5pZDsKPiA+ICAJaW50IHB3X2lkeCA9IHBvd2VyX3dl bGwtPmRlc2MtPmhzdy5pZHg7Cj4gPiAgCXUzMiBtYXNrID0gSFNXX1BXUl9XRUxMX0NUTF9SRVEo cHdfaWR4KSB8Cj4gPiAgCQkgICBIU1dfUFdSX1dFTExfQ1RMX1NUQVRFKHB3X2lkeCk7Cj4gPiAr CXUzMiB2YWw7Cj4gPiArCj4gPiArCXZhbCA9IEk5MTVfUkVBRChyZWdzLT5kcml2ZXIpOwo+ID4g Kwo+ID4gKwkvKgo+ID4gKwkgKiBPbiBHRU45IGJpZyBjb3JlIGR1ZSB0byBhIERNQyBidWcgdGhl IGRyaXZlcidzIHJlcXVlc3QgYml0cyBmb3IgUFcxCj4gPiArCSAqIGFuZCB0aGUgTUlTQ19JTyBQ VyB3aWxsIGJlIG5vdCByZXN0b3JlZCwgc28gY2hlY2sgaW5zdGVhZCBmb3IgdGhlCj4gPiArCSAq IEJJT1MncyBvd24gcmVxdWVzdCBiaXRzLCB3aGljaCBhcmUgZm9yY2VkLW9uIGZvciB0aGVzZSBw b3dlciB3ZWxscwo+ID4gKwkgKiB3aGVuIGV4aXRpbmcgREM1LzYuCj4gPiArCSAqLwo+ID4gKwlp ZiAoSVNfR0VOOShkZXZfcHJpdikgJiYgIUlTX0dFTjlfTFAoZGV2X3ByaXYpICYmCj4gCj4gSVNf R0VOOV9CQygpID8KClllcCwgc2hvdWxkJ3ZlIGtub3duIHRoZXJlIG11c3QgYmUgYSBtYWNybyBm b3IgdGhpcyBhbHJlYWR5IDovICAKCj4gCj4gQXBhcnQgZnJvbSB0aGF0Cj4gUmV2aWV3ZWQtYnk6 IFZpbGxlIFN5cmrDpGzDpCA8dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+Cj4gCj4gPiAr CSAgICAoaWQgPT0gU0tMX0RJU1BfUFdfMSB8fCBpZCA9PSBTS0xfRElTUF9QV19NSVNDX0lPKSkK PiA+ICsJCXZhbCB8PSBJOTE1X1JFQUQocmVncy0+Ymlvcyk7Cj4gPiAgCj4gPiAtCXJldHVybiAo STkxNV9SRUFEKHJlZ3MtPmRyaXZlcikgJiBtYXNrKSA9PSBtYXNrOwo+ID4gKwlyZXR1cm4gKHZh bCAmIG1hc2spID09IG1hc2s7Cj4gPiAgfQo+ID4gIAo+ID4gIHN0YXRpYyB2b2lkIGFzc2VydF9j YW5fZW5hYmxlX2RjOShzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYpCj4gPiAtLSAK PiA+IDIuMTMuMgo+IAo+IC0tIAo+IFZpbGxlIFN5cmrDpGzDpAo+IEludGVsCl9fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxp c3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNr dG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=