From mboxrd@z Thu Jan 1 00:00:00 1970 From: Imre Deak Subject: [PATCH 1/3] drm/i915/gen9_bc: Work around DMC bug zeroing power well requests Date: Fri, 9 Nov 2018 16:58:20 +0200 Message-ID: <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 mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTPS id D40BD6E685 for ; Fri, 9 Nov 2018 14:58:24 +0000 (UTC) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org Cc: Daniel Vetter List-Id: intel-gfx@lists.freedesktop.org QSBETUMgYnVnIG9uIEdFTjkgYmlnIGNvcmUgbWFjaGluZXMgZmFpbHMgdG8gcmVzdG9yZSB0aGUg ZHJpdmVyJ3MKcmVxdWVzdCBiaXRzIGZvciB0aGUgUFcxIGFuZCBNSVNDX0lPIHBvd2VyIHdlbGxz IGFmdGVyIGEgREM1LzYKZW50cnktPmV4aXQgc2VxdWVuY2UuIEFzIGEgY29uc2VxdWVuY2UgdGhl IGRyaXZlcidzIHN1YnNlcXVlbnQgY2hlY2sgZm9yCnRoZSBlbmFibGVkIHN0YXR1cyBvZiB0aGVz ZSBwb3dlciB3ZWxscyB3aWxsIGZhaWwsIGFzIHRoZSBjaGVjawpjb25zaWRlcnMgdGhlIHBvd2Vy IHdlbGxzIGJlaW5nIGVuYWJsZWQgb25seSBpZiBib3RoIHRoZSBzdGF0dXMgYW5kCnJlcXVlc3Qg Yml0cyBhcmUgc2V0LiBUbyB3b3JrIGFyb3VuZCB0aGlzIGJvcnJvdyB0aGUgcmVxdWVzdCBiaXRz IGZyb20KQklPUydzIG93biByZXF1ZXN0IHJlZ2lzdGVyIGluIHdoaWNoIERNQyBmb3JjZXMgb24g dGhlIHJlcXVlc3QgYml0cyB3aGVuCmV4aXRpbmcgZnJvbSBEQzUvNi4KClRoaXMgZml4ZXMgYSBw cm9ibGVtIHJlcG9ydGVkIGJ5IFJhbWFsaW5nYW0sIHdoZXJlIEhEQ1AgaW5pdCBmYWlsZWQsCnNp bmNlIFBXMSByZXBvcnRlZCBpdHNlbGYgYXMgYmVpbmcgZGlzYWJsZWQsIHdoaWxlIGluIHJlYWxp dHkgaXQgd2FzCmVuYWJsZWQuCgpSZXBvcnRlZC1ieTogUmFtYWxpbmdhbSBDIDxyYW1hbGluZ2Ft LmNAaW50ZWwuY29tPgpDYzogUmFtYWxpbmdhbSBDIDxyYW1hbGluZ2FtLmNAaW50ZWwuY29tPgpD YzogRGFuaWVsIFZldHRlciA8ZGFuaWVsLnZldHRlckBmZndsbC5jaD4KQ2M6IFZpbGxlIFN5cmrD pGzDpCA8dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+ClNpZ25lZC1vZmYtYnk6IEltcmUg RGVhayA8aW1yZS5kZWFrQGludGVsLmNvbT4KLS0tCiBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRl bF9ydW50aW1lX3BtLmMgfCAxNiArKysrKysrKysrKysrKystCiAxIGZpbGUgY2hhbmdlZCwgMTUg aW5zZXJ0aW9ucygrKSwgMSBkZWxldGlvbigtKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2Ry bS9pOTE1L2ludGVsX3J1bnRpbWVfcG0uYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3J1 bnRpbWVfcG0uYwppbmRleCBmOTQ1ZGI2ZWE0MjAuLjljNDliODc2MDU1ZCAxMDA2NDQKLS0tIGEv ZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcnVudGltZV9wbS5jCisrKyBiL2RyaXZlcnMvZ3B1 L2RybS9pOTE1L2ludGVsX3J1bnRpbWVfcG0uYwpAQCAtNDkzLDExICs0OTMsMjUgQEAgc3RhdGlj IGJvb2wgaHN3X3Bvd2VyX3dlbGxfZW5hYmxlZChzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0ZSAqZGV2 X3ByaXYsCiAJCQkJICAgc3RydWN0IGk5MTVfcG93ZXJfd2VsbCAqcG93ZXJfd2VsbCkKIHsKIAlj b25zdCBzdHJ1Y3QgaTkxNV9wb3dlcl93ZWxsX3JlZ3MgKnJlZ3MgPSBwb3dlcl93ZWxsLT5kZXNj LT5oc3cucmVnczsKKwllbnVtIGk5MTVfcG93ZXJfd2VsbF9pZCBpZCA9IHBvd2VyX3dlbGwtPmRl c2MtPmlkOwogCWludCBwd19pZHggPSBwb3dlcl93ZWxsLT5kZXNjLT5oc3cuaWR4OwogCXUzMiBt YXNrID0gSFNXX1BXUl9XRUxMX0NUTF9SRVEocHdfaWR4KSB8CiAJCSAgIEhTV19QV1JfV0VMTF9D VExfU1RBVEUocHdfaWR4KTsKKwl1MzIgdmFsOworCisJdmFsID0gSTkxNV9SRUFEKHJlZ3MtPmRy aXZlcik7CisKKwkvKgorCSAqIE9uIEdFTjkgYmlnIGNvcmUgZHVlIHRvIGEgRE1DIGJ1ZyB0aGUg ZHJpdmVyJ3MgcmVxdWVzdCBiaXRzIGZvciBQVzEKKwkgKiBhbmQgdGhlIE1JU0NfSU8gUFcgd2ls bCBiZSBub3QgcmVzdG9yZWQsIHNvIGNoZWNrIGluc3RlYWQgZm9yIHRoZQorCSAqIEJJT1MncyBv d24gcmVxdWVzdCBiaXRzLCB3aGljaCBhcmUgZm9yY2VkLW9uIGZvciB0aGVzZSBwb3dlciB3ZWxs cworCSAqIHdoZW4gZXhpdGluZyBEQzUvNi4KKwkgKi8KKwlpZiAoSVNfR0VOOShkZXZfcHJpdikg JiYgIUlTX0dFTjlfTFAoZGV2X3ByaXYpICYmCisJICAgIChpZCA9PSBTS0xfRElTUF9QV18xIHx8 IGlkID09IFNLTF9ESVNQX1BXX01JU0NfSU8pKQorCQl2YWwgfD0gSTkxNV9SRUFEKHJlZ3MtPmJp b3MpOwogCi0JcmV0dXJuIChJOTE1X1JFQUQocmVncy0+ZHJpdmVyKSAmIG1hc2spID09IG1hc2s7 CisJcmV0dXJuICh2YWwgJiBtYXNrKSA9PSBtYXNrOwogfQogCiBzdGF0aWMgdm9pZCBhc3NlcnRf Y2FuX2VuYWJsZV9kYzkoc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2KQotLSAKMi4x My4yCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRl bC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6 Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK