From mboxrd@z Thu Jan 1 00:00:00 1970 From: zhoucm1 Subject: Re: [PATCH] drm/syncobj: return meaningful value to user space Date: Mon, 22 Jul 2019 18:11:55 +0800 Message-ID: <7e31bcb8-ceda-0b71-8b3d-dfb99a9832f2@amd.com> References: <20190718111339.25126-1-david1.zhou@amd.com> <79b2a068-412c-55ae-e094-14b9912b3e68@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from NAM03-DM3-obe.outbound.protection.outlook.com (mail-eopbgr800070.outbound.protection.outlook.com [40.107.80.70]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8C0F489BA9 for ; Mon, 22 Jul 2019 10:12:32 +0000 (UTC) In-Reply-To: <79b2a068-412c-55ae-e094-14b9912b3e68@intel.com> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Lionel Landwerlin , Chunming Zhou , dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org CgpPbiAyMDE55bm0MDfmnIgyMuaXpSAxNjo0NiwgTGlvbmVsIExhbmR3ZXJsaW4gd3JvdGU6Cj4g T24gMTgvMDcvMjAxOSAxNDoxMywgQ2h1bm1pbmcgWmhvdSB3cm90ZToKPj4gaWYgV0FJVF9GT1Jf U1VCTUlUIGlzbid0IHNldCBhbmQgaW4gdGhlIG1lYW53aGlsZSBubyB1bmRlcmx5aW5nIGZlbmNl IAo+PiBvbiBzeW5jb2JqLAo+PiB0aGVuIHJldHVybiBub24tYmxvY2sgZXJyb3IgY29kZSB0byB1 c2VyIHNhcGNlLgo+Pgo+PiBTaWduZWQtb2ZmLWJ5OiBDaHVubWluZyBaaG91IDxkYXZpZDEuemhv dUBhbWQuY29tPgo+PiAtLS0KPj4gwqAgZHJpdmVycy9ncHUvZHJtL2RybV9zeW5jb2JqLmMgfCA0 ICsrLS0KPj4gwqAgMSBmaWxlIGNoYW5nZWQsIDIgaW5zZXJ0aW9ucygrKSwgMiBkZWxldGlvbnMo LSkKPj4KPj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9kcm1fc3luY29iai5jIAo+PiBi L2RyaXZlcnMvZ3B1L2RybS9kcm1fc3luY29iai5jCj4+IGluZGV4IDM2MWEwMWEwOGMxOC4uOTI5 ZjdjNjRmOWEyIDEwMDY0NAo+PiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vZHJtX3N5bmNvYmouYwo+ PiArKysgYi9kcml2ZXJzL2dwdS9kcm0vZHJtX3N5bmNvYmouYwo+PiBAQCAtMjUyLDcgKzI1Miw3 IEBAIGludCBkcm1fc3luY29ial9maW5kX2ZlbmNlKHN0cnVjdCBkcm1fZmlsZSAKPj4gKmZpbGVf cHJpdmF0ZSwKPj4gwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgcmV0dXJuIDA7Cj4+IMKgwqDC oMKgwqDCoMKgwqDCoCBkbWFfZmVuY2VfcHV0KCpmZW5jZSk7Cj4+IMKgwqDCoMKgwqAgfSBlbHNl IHsKPj4gLcKgwqDCoMKgwqDCoMKgIHJldCA9IC1FSU5WQUw7Cj4+ICvCoMKgwqDCoMKgwqDCoCBy ZXQgPSAtRU5PVEJMSzsKPgo+Cj4gVGhpcyB3aWxsIG9ubHkgcmV0dXJuIHRoZSBuZXcgZXJyb3Ig d2hlbiB0aGVyZSBpcyBubyBjaGFpbiBmZW5jZSBpbiAKPiB0aGUgc3luY29iaj8KSWYgYWxsIG9m IHlvdSBhZ3JlZSwgdGhhdCdzIGJlc3QuCkkndmUgY2hlY2tlZCBvcmdpbmFsIEVJTlZBTO+8jHRo ZXJlIGFyZSAzIHNpdHVhdGlvbnMgd2hpY2ggd291bGQgcmV0dXJuIApFSU5WQUw6CmEuIGludmFs aWQgZmxhZ3MKYi4gY291bnRfaGFuZGxlcwpjLiBmYWlsZWQgdG8gZmluZCBmZW5jZSBpbiBzeW5j b2JqLgoKSWYgdXNlciBjYW4gbWFrZSBzdXJlIHNhbml0aXphdGlvbiBmb3IgcGFyYW10ZXJzLCB0 aGVuIEVJTlZBTCBjYW4gYmUgCnVzZWQgdG8gaWRlbnRpZnkgImxhY2sgb2YgZmVuY2UgaW4gc3lu Y29iaiIsIHdoaWNoIGlzIHdhaXRCZWZvcmVTaWduYWwuIApJIHVzZSBpdCBpbiBteSBjdXJyZW50 IGltcGxlbWVudGF0aW9uLgoKPgo+IERvbid0IHlvdSB3YW50IHRoZSBuZXcgZXJyb3IgY29kZSBh ZnRlciBkbWFfZmVuY2VfY2hhaW5fZmluZF9zZXFubygpIHRvbz8KTm8sIEkgZG9uJ3Qgd2FudCB0 byB0aGF0LCBJIGp1c3Qgd2FudCB0byBhIG1lYW5pbmdmdWwgYW5kIHVuaXF1ZSBlcnJvciAKY29k ZSBmb3IgdW1kLgoKPgo+Cj4gV2hpY2ggbWFrZSBtZSByZWFsaXplIHRoZXJlIGlzIHByb2JhYmx5 IGEgYnVnIHdpdGggdGhpcyBjb2RlIDoKPgo+Cj4gcmV0ID0gZG1hX2ZlbmNlX2NoYWluX2ZpbmRf c2Vxbm8oZmVuY2UsIHBvaW50KTsKPiBpZiAoIXJldCkKPiDCoMKgwqDCoMKgwqDCoCByZXR1cm4g MDsKPiBkbWFfZmVuY2VfcHV0KCpmZW5jZSk7Cj4KPgo+IFNvdW5kcyBsaWtlIHRoZSBjb25kaXRp b24gc2hvdWxkIGJlCj4KPiBpZiAocmV0KQo+Cj4gwqDCoMKgIMKgwqDCoCByZXR1cm4gcmV0Owo+ Cj4KPiBJIHJlYWxpemUgd2UgaGF2ZSBpbnRyb2R1Y2VkIGEgYmxvY2tpbmcgYmVoYXZpb3Igb24g dGhlIHRyYW5zZmVyIGlvY3RsLgo+Cj4gSWYgd2UncmUgZ29pbmcgdG8gY2hhbmdlIHRoaXMgdG8g cmV0dXJuIEVXT1VMREJMT0NLLCB3ZSBtaWdodCB3YW50IHRvIAo+IGdldCByaWQgb2YgaXQuClNv dW5kcyByaWdodCwgYnV0IEkgdGhpbmsgY3VycmVudCBpbXBsZW1lbnRhdGlvbiBpcyBhY2NlcHRh YmxlIGFzIHdlbGwuCgotRGF2aWQKPgo+Cj4gLUxpb25lbAo+Cj4KPj4gwqDCoMKgwqDCoCB9Cj4+ IMKgIMKgwqDCoMKgwqAgaWYgKCEoZmxhZ3MgJiBEUk1fU1lOQ09CSl9XQUlUX0ZMQUdTX1dBSVRf Rk9SX1NVQk1JVCkpCj4+IEBAIC04MzIsNyArODMyLDcgQEAgc3RhdGljIHNpZ25lZCBsb25nIAo+ PiBkcm1fc3luY29ial9hcnJheV93YWl0X3RpbWVvdXQoc3RydWN0IGRybV9zeW5jb2JqICoqc3lu Y29ianMsCj4+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIGlmIChmbGFncyAmIERSTV9TWU5D T0JKX1dBSVRfRkxBR1NfV0FJVF9GT1JfU1VCTUlUKSB7Cj4+IMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqAgY29udGludWU7Cj4+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIH0g ZWxzZSB7Cj4+IC3CoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgdGltZW91dCA9IC1FSU5W QUw7Cj4+ICvCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgdGltZW91dCA9IC1FTk9UQkxL Owo+PiDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIGdvdG8gY2xlYW51cF9lbnRy aWVzOwo+PiDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCB9Cj4+IMKgwqDCoMKgwqDCoMKgwqDC oCB9Cj4KPgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K ZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0 dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVs