From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yaodong Li Subject: Re: [PATCH v9 6/7] drm/i915/guc: Check the locking status of GuC WOPCM registers Date: Fri, 9 Feb 2018 14:12:57 -0800 Message-ID: References: <1518131035-24108-1-git-send-email-yaodong.li@intel.com> <1518131035-24108-6-git-send-email-yaodong.li@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" 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 94A656E1B6 for ; Fri, 9 Feb 2018 22:14:30 +0000 (UTC) In-Reply-To: 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: Michal Wajdeczko , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gMDIvMDkvMjAxOCAxMTo0MiBBTSwgTWljaGFsIFdhamRlY3prbyB3cm90ZToKPgo+PiArc3Rh dGljIGlubGluZSBib29sIF9fcmVnX2xvY2tlZChzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0ZSAqZGV2 X3ByaXYsCj4+ICvCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgaTkxNV9yZWdfdCByZWcp Cj4+ICt7Cj4+ICvCoMKgwqAgLyogU2V0IG9mIGJpdC0wIG1lYW5zIHRoaXMgd3JpdGUtb25jZSBy ZWdpc3RlciBpcyBsb2NrZWQuICovCj4+ICvCoMKgwqAgcmV0dXJuIEk5MTVfUkVBRChyZWcpICYg QklUKDApOwo+PiArfQo+Cj4gSG1tLCBJJ20gc3RpbGwgbm90IGhhcHB5IGFzIG5vdCBhbGwgcmVn aXN0ZXJzIHN1cHBvcnRzIHdyaXRlLW9uY2UgYml0Lgo+IFdoYXQgYWJvdXQgc29tZXRoaW5nIG1v cmUgZ2VuZXJpYy9yb2J1c3QKPgo+IHN0YXRpYyBpbmxpbmUgYm9vbAo+IF9fcmVnX3Rlc3Qoc3Ry dWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2LCBpOTE1X3JlZ190IHJlZywgdTMyIAo+IG1h c2ssIHUzMiB2YWx1ZSkKPiB7Cj4gwqDCoMKgwqByZXR1cm4gKEk5MTVfUkVBRChyZWcpICYgbWFz aykgPT0gdmFsdWU7Cj4gfQo+Cj4gc3RhdGljIGlubGluZSBib29sCj4gX19yZWdfaXNfc2V0KHN0 cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiwgaTkxNV9yZWdfdCByZWcsIHUzMiAKPiB2 YWx1ZSkKPiB7Cj4gwqDCoMKgwqByZXR1cm4gX19yZWdfdGVzdChkZXZfcHJpdiwgcmVnLCB2YWx1 ZSwgdmFsdWUpOwo+IH0KPiAuLi4KPiAjZGVmaW5lIFdPUENNX09GRlNFVF9WQUxJRMKgICgxPDww KQo+IC4uLgo+ICNkZWZpbmUgV09QQ01fTE9DS0VEwqDCoMKgwqDCoMKgwqAgKDE8PDApCj4gLi4u Cj4gbG9ja2VkID0gX19yZWdfaXNfc2V0KGk5MTUsIEdVQ19XT1BDTV9TSVpFLCBXT1BDTV9MT0NL RUQpOwo+IGxvY2tlZCA9IF9fcmVnX2lzX3NldChpOTE1LCBETUFfR1VDX1dPUENNX09GRlNFVCwg V09QQ01fT0ZGU0VUX1ZBTElEKTsKPgpGZWVscyBsaWtlIGEgYml0IG92ZXIgZW5naW5lZXJpbmcg aW4gdGhpcyB3YXkuIHR3byByZWFzb25zOgowKSB3ZSB1c2UgdGhpcyBvbmx5IGluIHRoaXMgZmls ZSBhbmQgd2l0aCBmdWxsIGNvbnRyb2wgb3ZlciBpdC4KMSkgQWxsIEd1QyBXT1BDTSByZWxhdGVk IHJlZ2lzdGVycyBhcmUgYWxsIHdyaXRlLW9uY2UgcmVnaXN0ZXJzIChhbmQgCnVzaW5nIHRoZSBz YW1lIGJpdAogwqDCoMKgIGZvciBsb2NraW5nIHN0YXR1cykKPj4gK8KgwqDCoCAvKiBHdUMgV09Q Q00gcmVnaXN0ZXJzIHNob3VsZCBiZSB1bmxvY2tlZCBhdCB0aGlzIHBvaW50LiAqLwo+PiArwqDC oMKgIEdFTV9CVUdfT04oX19yZWdfbG9ja2VkKGRldl9wcml2LCBHVUNfV09QQ01fU0laRSkpOwo+ PiArwqDCoMKgIEdFTV9CVUdfT04oX19yZWdfbG9ja2VkKGRldl9wcml2LCBETUFfR1VDX1dPUENN X09GRlNFVCkpOwo+Cj4gSSdtIG5vdCBzdXJlIHRoYXQgR0VNX0JVR19PTiBjYW4gYmUgdXNlZCBv biBiaXRzIHRoYXQgd2UgZG9uJ3QKPiBmdWxseSBjb250cm9sCj4KQWdyZWVkLiBhdCBsZWFzdCBp dCdzIG5vdCBhIEdFTSBCdWcuCj4+Cj4+ICt9Cj4+ICsKPj4gK3N0YXRpYyBpbmxpbmUgYm9vbCBn dWNfd29wY21fcmVnc192YWxpZChzdHJ1Y3QgaW50ZWxfZ3VjICpndWMpCj4KPiBjYW4ndCB3ZSBh bHdheXMgaGF2ZSBpbnRlbF9ndWNfd29wY20gYXMgZmlyc3QgcGFyYW0gPwpJIGRvbid0IHRoaW5r IGl0J3MgbmVjZXNzYXJ5IGZvciBpdCdzIGEgc3RhdGljIGZ1bmMgcGx1cyB3ZSB3b3VsZCBuZWVk IAphbm90aGVyCndvcGNtX3RvX2d1YygpIHdpdGggYSBndWNfd29wY20gZmlyc3QgcGFyYW0uIHdl IGNhbiBzYXZlIHNvbWUgdGltZQp3aXRoIG5vIGNvbmZ1c2lvbiB0byBleHRlcm5hbCBjYWxsZXJz IGluIHRoaXMgd2F5LiBzbyB3aHkgbm90Pwo+Cj4+ICvCoMKgwqDCoMKgwqDCoCAvKiBSZWdpc3Rl ciBsb2NrZWQgd2l0aG91dCB2YWxpZCB2YWx1ZXMuIEFib3J0IEhXIGluaXQuICovCj4+ICvCoMKg wqDCoMKgwqDCoCByZXR1cm4gLUVJTlZBTDsKPgo+IEknbSBub3Qgc3VyZSB0aGF0IEVJTlZBTCBp cyBjb3JyZWN0IGVycm9yIGNvZGUgaGVyZSAuLi4gbWF5YmUgRUFDQ0VTID8KPgpobW0sIEVBQ0NF UyAoLTEzKSBhbHdheXMgZmVlbHMgbGlrZSBubyBwZXJtaXNzaW9uIHRvIGRvIHRoaXMuIEl0J3Mg bW9yZSAKbGlrZSBhIElPIGVycm9yLCBzbwptYXliZSAtRUlPIGFuZCBnbyBhaGVhZCB0byB0cmln Z2VyIEdFTSB3YXJuaW5nIGZvciB0aGlzIHN1Y2ggYW4gZXJyb3I/IApzaW5jZSBJIGZvdW5kIGZv bGxvd2luZwpjb2RlIGluIHVjX2luaXRfaHcoKQogwqDCoMKgIGlmIChHRU1fV0FSTl9PTihyZXQg PT0gLUVJTykpCiDCoMKgwqAgwqDCoMKgIHJldCA9IC1FSU5WQUw7CgpSZWdhcmRzLAotSmFja2ll Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdm eCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xp c3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=