From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joonas Lahtinen Subject: Re: [PATCH 09/16] drm/i915: Do a nonblocking wait first in pread/pwrite Date: Thu, 04 Aug 2016 10:53:31 +0300 Message-ID: <1470297211.3633.16.camel@linux.intel.com> References: <1470075758-13871-1-git-send-email-chris@chris-wilson.co.uk> <1470075758-13871-10-git-send-email-chris@chris-wilson.co.uk> 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 ESMTP id A2C036E5DF for ; Thu, 4 Aug 2016 07:53:34 +0000 (UTC) In-Reply-To: <1470075758-13871-10-git-send-email-chris@chris-wilson.co.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Chris Wilson , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gbWEsIDIwMTYtMDgtMDEgYXQgMTk6MjIgKzAxMDAsIENocmlzIFdpbHNvbiB3cm90ZToKPiBJ ZiB3ZSB0cnkgYW5kIHJlYWQgb3Igd3JpdGUgdG8gYW4gYWN0aXZlIHJlcXVlc3QsIHdlIGZpcnN0 IG11c3Qgd2FpdAo+IHVwb24gdGhlIEdQVSBjb21wbGV0aW5nIHRoYXQgcmVxdWVzdC4gTGV0J3Mg ZG8gdGhhdCB3aXRob3V0IGhvbGRpbmcgdGhlCj4gbXV0ZXggKGFuZCBzbyBhbGxvdyBzb21lb25l IGVsc2UgdG8gYWNjZXNzIHRoZSBHUFUgd2hpbHN0IHdlIHdhaXQpLiBVcG4KwqAgwqAgwqAgwqAg wqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAg wqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqBVcG9uIC0tXgo+IGNvbXBsZXRpb24sIHdlIHdpbGwg cmVhY3F1aXJlIHRoZSBtdXRleCBhbmQgb25seSB0aGVuIHN0YXJ0IHRoZQo+IG9wZXJhdGlvbiAo aS5lLiB3ZSBkbyBub3QgcmVseSBvbiBzdGF0ZSBmcm9tIGJlZm9yZSBkcm9wcGluZyB0aGUgbXV0 ZXgpLgo+IAoKPFNOSVA+Cgo+IEBAIC05NTMsMjUgKzk1MywyNiBAQCBpOTE1X2dlbV9wcmVhZF9p b2N0bChzdHJ1Y3QgZHJtX2RldmljZSAqZGV2LCB2b2lkICpkYXRhLAo+IMKgCQnCoMKgwqDCoMKg wqDCoGFyZ3MtPnNpemUpKQo+IMKgCQlyZXR1cm4gLUVGQVVMVDsKPiDCoAo+IC0JcmV0ID0gaTkx NV9tdXRleF9sb2NrX2ludGVycnVwdGlibGUoZGV2KTsKPiAtCWlmIChyZXQpCj4gLQkJcmV0dXJu IHJldDsKPiAtCj4gwqAJb2JqID0gaTkxNV9nZW1fb2JqZWN0X2xvb2t1cChmaWxlLCBhcmdzLT5o YW5kbGUpOwo+IC0JaWYgKCFvYmopIHsKPiAtCQlyZXQgPSAtRU5PRU5UOwo+IC0JCWdvdG8gdW5s b2NrOwo+IC0JfQo+ICsJaWYgKCFvYmopCj4gKwkJcmV0dXJuIC1FTk9FTlQ7Cj4gwqAKPiDCoAkv KiBCb3VuZHMgY2hlY2sgc291cmNlLsKgwqAqLwo+IMKgCWlmIChhcmdzLT5vZmZzZXQgPiBvYmot PmJhc2Uuc2l6ZSB8fAo+IMKgCcKgwqDCoMKgYXJncy0+c2l6ZSA+IG9iai0+YmFzZS5zaXplIC0g YXJncy0+b2Zmc2V0KSB7Cj4gwqAJCXJldCA9IC1FSU5WQUw7Cj4gLQkJZ290byBvdXQ7Cj4gKwkJ Z290byBvdXRfdW5sb2NrZWQ7CgpBZ2FpbiB0aGUgc29sZSBleGl0IHBhdGgsIGNvdWxkIGJlIGp1 c3QgJ2VycicKCj4gQEAgLTEzNjgsMjcgKzEzNzIsMjggQEAgaTkxNV9nZW1fcHdyaXRlX2lvY3Rs KHN0cnVjdCBkcm1fZGV2aWNlICpkZXYsIHZvaWQgKmRhdGEsCj4gwqAJCQlyZXR1cm4gLUVGQVVM VDsKPiDCoAl9Cj4gwqAKPiAtCWludGVsX3J1bnRpbWVfcG1fZ2V0KGRldl9wcml2KTsKPiAtCj4g LQlyZXQgPSBpOTE1X211dGV4X2xvY2tfaW50ZXJydXB0aWJsZShkZXYpOwo+IC0JaWYgKHJldCkK PiAtCQlnb3RvIHB1dF9ycG07Cj4gLQo+IMKgCW9iaiA9IGk5MTVfZ2VtX29iamVjdF9sb29rdXAo ZmlsZSwgYXJncy0+aGFuZGxlKTsKPiAtCWlmICghb2JqKSB7Cj4gLQkJcmV0ID0gLUVOT0VOVDsK PiAtCQlnb3RvIHVubG9jazsKPiAtCX0KPiArCWlmICghb2JqKQo+ICsJCXJldHVybiAtRU5PRU5U Owo+IMKgCj4gwqAJLyogQm91bmRzIGNoZWNrIGRlc3RpbmF0aW9uLiAqLwo+IMKgCWlmIChhcmdz LT5vZmZzZXQgPiBvYmotPmJhc2Uuc2l6ZSB8fAo+IMKgCcKgwqDCoMKgYXJncy0+c2l6ZSA+IG9i ai0+YmFzZS5zaXplIC0gYXJncy0+b2Zmc2V0KSB7Cj4gwqAJCXJldCA9IC1FSU5WQUw7Cj4gLQkJ Z290byBvdXQ7Cj4gKwkJZ290byBvdXRfdW5sb2NrZWQ7CgpEaXR0byBpbiB0aGlzIGZ1bmMsIGp1 c3QgJ2VycicKCj4gwqAJfQo+IMKgCj4gLQl0cmFjZV9pOTE1X2dlbV9vYmplY3RfcHdyaXRlKG9i aiwgYXJncy0+b2Zmc2V0LCBhcmdzLT5zaXplKTsKPiArCXJldCA9IF9fdW5zYWZlX3dhaXRfcmVu ZGVyaW5nKG9iaiwgdG9fcnBzX2NsaWVudChmaWxlKSwgZmFsc2UpOwo+ICsJaWYgKHJldCkKPiAr CQlnb3RvIG91dF91bmxvY2tlZDsKPiArCj4gKwlpbnRlbF9ydW50aW1lX3BtX2dldChkZXZfcHJp dik7Cj4gwqAKCkFzIGRpc2N1c3NlZCBpbiBJUkMsIHByZWFkX2lvY3RsIGRvZXMgbm90IHRha2Ug UlBNIGZvciB0aGUgZmFsbGJhY2sKcGF0aCwgaXQgc2hvdWxkLgoKPiArCXJldCA9IGk5MTVfbXV0 ZXhfbG9ja19pbnRlcnJ1cHRpYmxlKGRldik7Cj4gKwlpZiAocmV0KQo+ICsJCWdvdG8gb3V0X3Jw bTsKPiArCj4gKwl0cmFjZV9pOTE1X2dlbV9vYmplY3RfcHdyaXRlKG9iaiwgYXJncy0+b2Zmc2V0 LCBhcmdzLT5zaXplKTsKCkZvciB0cmFjaW5nLCBJJ20gbm90IHF1aXRlIHN1cmUgaWYgd2Ugc2hv dWxkIGVtaXQgZmFpbGVkIGF0dGVtcHRzIHRvbywKSSBndWVzcyBpdCdzIGEgcG9saWN5IGRlY2lz aW9uPwoKUmVnYXJkcywgSm9vbmFzCi0tIApKb29uYXMgTGFodGluZW4KT3BlbiBTb3VyY2UgVGVj aG5vbG9neSBDZW50ZXIKSW50ZWwgQ29ycG9yYXRpb24KX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhA bGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxt YW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==