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X-AuditID: 8b5b014d-a4c337000000209f-b1-60511a84b731 Received: from enigma.ics.forth.gr (enigma-2.ics.forth.gr [139.91.151.35]) by av3.ics.forth.gr (Symantec Messaging Gateway) with SMTP id 08.FA.08351.48A11506; Tue, 16 Mar 2021 22:52:20 +0200 (EET) X-ICS-AUTH-INFO: Authenticated user: at ics.forth.gr MIME-Version: 1.0 Date: Tue, 16 Mar 2021 22:52:20 +0200 From: Nick Kossifidis To: Gary Guo Cc: Nick Kossifidis , linux-riscv@lists.infradead.org Subject: Re: [PATCH] riscv: enable TIME CSR in U mode Organization: FORTH In-Reply-To: References: <20210216221208.2860-1-gary@garyguo.net> Message-ID: <5f829b8bc5d78b8c75dbcfdb5921119a@mailhost.ics.forth.gr> X-Sender: mick@mailhost.ics.forth.gr User-Agent: Roundcube Webmail/1.3.16 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrOLMWRmVeSWpSXmKPExsXSHT1dWbdFKjDBYNpfcYuLZ14zWmz73MJm 0fzuHLsDs8eSzl9MHg83XWLy2LykPoA5issmJTUnsyy1SN8ugSvj6uutrAWNYhXNtyewNzDu EOxi5OSQEDCR+Lv4N1sXIxeHkMAxRom+qZcYIRKmErP3doLZvAKCEidnPmEBsZkFLCSmXtnP CGHLSzRvnc0MYrMIqEqcvLwczGYT0JSYf+kgWL0IUM2mVYuYIOo9JK4t3wFWIww0f+/d12Bx fgFhiU93L7KC2JwCMRI3V21ihzjoIKPEhJnPWSGOcJFYcGE7K8RxKhIffj8AKuLgEAWyN89V msAoOAvJqbOQnDoLyakLGJlXMQoklhnrZSYX66XlF5Vk6KUXbWIEhy2j7w7G25vf6h1iZOJg PMQowcGsJMJrmheQIMSbklhZlVqUH19UmpNafIhRmoNFSZyXV29CvJBAemJJanZqakFqEUyW iYNTqoFp4oJE3nMN3pM3yh9ftWPluinWr+Mjnlt1lP/buy6QyX9qdEHK+eMfGaLjd92OKPws u7R8pUHFhLRTBiIfn8a2n7rX3sR2KXyGb4Zf7/xKXRnHU6KiW2LvV/cmOBWeOv5tna5z+xfL M1bJ756Eh3zQrV4d7vOmZrLoS41zqrdtesxnGG069czzs2jV/9f36mXrt6u9OrT4zY6ChU9s Z659O6O1YoNicqaqU1boDO7HrHnnPa+fLt+rcvHqjzUsKaeuq22RmGLxQfbRw46m1vet4feF b88OEOLJS/gqdvwe++trR86eT9jIvPjt6Rb/glfJgjwp9aEyFy9qSd1O/zRtkt6EM7NdHLad nPhVZdFVZiWW4oxEQy3mouJEAH9E9H/KAgAA X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210316_205231_334603_CF6DA20B X-CRM114-Status: GOOD ( 23.71 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org VGhlbiB3ZSBhbHNvIG5lZWQgdG8gbW9kaWZ5IHRoZSBjdXJyZW50IHBlcmYgY29kZSB0aGF0IGFz c3VtZXMgZS5nLiB0aGF0IAppbnN0cmV0IGlzIGVuYWJsZWQuIEknZCBzdWdnZXN0IHRoYXQgdW50 aWwgd2UgaGF2ZSBhbiBTQkkgaW50ZXJmYWNlIAooc2luY2Ugd2UgYWxzbyBuZWVkIHRvIG1ha2Ug c3VyZSB0aGF0IHRoZSBlbmFibGVkIGNvdW50ZXJzIGFyZSBhbHNvIHNldCAKb24gbWNvdW50ZXJl bikgZm9yIGVuYWJsaW5nIC8gZGlzYWJsaW5nIGNvdW50ZXJzLCB3ZSBsZWF2ZSB0aGlzIHRvIHRo ZSAKZmlybXdhcmUuCgpSZWdhcmRzLApOaWNrCgrOo8+EzrnPgiAyMDIxLTAzLTE2IDA4OjI0LCBH YXJ5IEd1byDOrc6zz4HOsc+IzrU6Cj4gSSBkb24ndCB0aGluayB3ZSBzaG91bGQgbGV0IHRoZSBm aXJtd2FyZSB0byBkZWNpZGUgd2hpY2ggcGVyZm9ybWFuY2UKPiBjb3VudGVyIENTUnMgY2FuIGJl IHVzZWQgYnkgdGhlIHVzZXJzcGFjZS4gTm8gY291bnRlciBzaG91bGQgYmUKPiBhbGxvd2VkIHVu bGVzcyB0aGVyZSBpcyBhIHJlYXNvbiB0byBhbGxvdyBpdCwgbGlrZSB0aGUgdGltZXIgQ1NSLgo+ IEFsc28sIE9wZW5TQkkgaXMgbm90IHRoZSBvbmx5IFNCSSBpbXBsZW1lbnRhdGlvbiw7IHRoZXJl IGNvdWxkIGJlIG5vCj4gU0JJcyBhdCBhbGwgKGkuZS4gTSBtb2RlKSBvciBoYXZlIG90aGVyIFNC SXMgdGhhdCBoYXZlIGRpZmZlcmVudAo+IGRlZmF1bHRzLgo+IAo+IEJlc3QsCj4gR2FyeQo+IAo+ IC0tLS0tT3JpZ2luYWwgTWVzc2FnZS0tLS0tCj4gRnJvbTogTmljayBLb3NzaWZpZGlzIDxtaWNr QGljcy5mb3J0aC5ncj4KPiBTZW50OiBUaHVyc2RheSwgTWFyY2ggNCwgMjAyMSA1OjM1IFBNCj4g VG86IEdhcnkgR3VvIDxnYXJ5QGdhcnlndW8ubmV0Pgo+IENjOiBsaW51eC1yaXNjdkBsaXN0cy5p bmZyYWRlYWQub3JnCj4gU3ViamVjdDogUmU6IFtQQVRDSF0gcmlzY3Y6IGVuYWJsZSBUSU1FIENT UiBpbiBVIG1vZGUKPiAKPiDOo8+EzrnPgiAyMDIxLTAyLTE3IDAwOjEyLCBHYXJ5IEd1byDOrc6z z4HOsc+IzrU6Cj4+IEFmdGVyIGFkNWQxMTIgd2UgbGV0IHRoZSB1c2VyIG1vZGUgdG8gdXNlIHJk dGltZSBkaXJlY3RseSBmb3IgdGltZQo+PiBhY2Nlc3MuIFRoaXMgd29ya3MgaWYgdGhlIGhhcmR3 YXJlIGRvZXMgbm90IGltcGxlbWVudCB0aGUgVElNRSBDU1IgYW5kCj4+IHRyYXBzIHRvIHRoZSBm aXJtd2FyZS4gVGhlIHNwZWMgaG93ZXZlciBkb2VzIGFsbG93IGEgaGFyZHdhcmUKPj4gaW1wbGVt ZW50YXRpb24gdG8gcmVkaXJlY3QgdGhlIENTUiBhY2Nlc3MgdG8gdGhlIG1lbW9yeS1tYXBwZWQg TVRJTUUKPj4gQ1NSLCBhbmQgaWYgdGhpcyBpcyBwZXJmb3JtZWQgaXQgd2lsbCBjaGVjayB7TSxT fUNPVU5URVJFTiBDU1IgdG8gc2VlCj4+IGlmIGl0IGlzIGFsbG93ZWQuCj4+IAo+PiBUbyBwcmV2 ZW50IHVuaGFuZGxlZCBpbGxlZ2FsIGluc3RydWN0aW9uIGZhdWx0IG9uIHRoZXNlIHBsYXRmb3Jt cywgd2UKPj4gY2FuIHJlcXVlc3QgdGhlc2UgQ1NScyB0byBiZSBlbmFibGVkIGluIFUtbW9kZS4g Rm9yIHBsYXRmb3JtcyB0aGF0Cj4+IGRvZXMgbm90IHN1cHBvcnQgdGhlIFRJTUUgQ1NSIHRvIE1U SU1FIENTUiBjb252ZXJzaW9uLCB0aGV5IHdpbGwKPj4gaGFyZHdpcmUgY29ycmVzcG9uZGluZyBi aXQgaW4gQ09VTlRFUkVOIHRvIHplcm8gYW5kIHRoaXMgd291bGQgYmUgYQo+PiBuby1vcC4KPj4g Cj4+IFNpZ25lZC1vZmYtYnk6IEdhcnkgR3VvIDxnYXJ5QGdhcnlndW8ubmV0Pgo+PiAtLS0KPj4g IGFyY2gvcmlzY3Yva2VybmVsL2hlYWQuUyB8IDYgKysrKysrCj4+ICAxIGZpbGUgY2hhbmdlZCwg NiBpbnNlcnRpb25zKCspCj4+IAo+PiBkaWZmIC0tZ2l0IGEvYXJjaC9yaXNjdi9rZXJuZWwvaGVh ZC5TIGIvYXJjaC9yaXNjdi9rZXJuZWwvaGVhZC5TIGluZGV4Cj4+IDBhNGU4MWI4ZGM3OS4uNWE3 YTYyMTkwMzQyIDEwMDY0NAo+PiAtLS0gYS9hcmNoL3Jpc2N2L2tlcm5lbC9oZWFkLlMKPj4gKysr IGIvYXJjaC9yaXNjdi9rZXJuZWwvaGVhZC5TCj4+IEBAIC0xOTAsNiArMTkwLDkgQEAgRU5UUlko X3N0YXJ0X2tlcm5lbCkgIC5hbGlnbiAyCj4+ICBwbXBfZG9uZToKPj4gCj4+ICsJLyogQWxsb3cg dXNlci1tb2RlIHRvIGFjY2VzcyB0aW1lIENTUiAqLwo+PiArCWNzcncsIENTUl9NQ09VTlRFUkVO LCAyCj4+ICsKPj4gIAkvKgo+PiAgCSAqIFRoZSBoYXJ0aWQgaW4gYTAgaXMgZXhwZWN0ZWQgbGF0 ZXIgb24sIGFuZCB3ZSBoYXZlIG5vIGZpcm13YXJlCj4+ICAJICogdG8gaGFuZCBpdCB0byB1cy4K Pj4gQEAgLTE5Nyw2ICsyMDAsOSBAQCBwbXBfZG9uZToKPj4gIAljc3JyIGEwLCBDU1JfTUhBUlRJ RAo+PiAgI2VuZGlmIC8qIENPTkZJR19SSVNDVl9NX01PREUgKi8KPj4gCj4+ICsJLyogQWxsb3cg dXNlci1tb2RlIHRvIGFjY2VzcyB0aW1lIENTUiAqLwo+PiArCWNzcncgQ1NSX1NDT1VOVEVSRU4s IDIKPj4gKwo+PiAgCS8qIExvYWQgdGhlIGdsb2JhbCBwb2ludGVyICovCj4+ICAub3B0aW9uIHB1 c2gKPj4gIC5vcHRpb24gbm9yZWxheAo+IAo+IFNob3VsZG4ndCB3ZSB1c2UgY3NycnMgaGVyZSB0 byBwcmVzZXJ2ZSBjdXJyZW50IHNldHRpbmdzIGZyb20gdGhlCj4gZmlybXdhcmUgPyBBbHNvIE9w ZW5TQkkgYXQgdGhpcyBwb2ludCBzZXRzIGJvdGggTUNPVU5URVJFTi9TQ09VTlRFUkVOCj4gdG8g LTEsIGRvZXMgYW55b25lIGVsc2UgbW9kaWZ5IHRoYXQgdmFsdWUgPwo+IAo+IFJlZ2FyZHMsCj4g TmljawoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGlu dXgtcmlzY3YgbWFpbGluZyBsaXN0CmxpbnV4LXJpc2N2QGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0 cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1yaXNjdgo=