From mboxrd@z Thu Jan 1 00:00:00 1970 From: zhoucm1 Subject: Re: [PATCH 4/5] drm/amd/amdgpu: add check that shadow page directory is GPU-accessible Date: Fri, 16 Dec 2016 10:49:06 +0800 Message-ID: <58535622.6070103@amd.com> References: <1481821815-9971-1-git-send-email-nhaehnle@gmail.com> <1481821815-9971-5-git-send-email-nhaehnle@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1481821815-9971-5-git-send-email-nhaehnle-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "amd-gfx" To: =?UTF-8?B?Tmljb2xhaSBIw6Robmxl?= , amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Cc: dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, =?UTF-8?B?Tmljb2xhaSBIw6Robmxl?= CgpPbiAyMDE25bm0MTLmnIgxNuaXpSAwMToxMCwgTmljb2xhaSBIw6RobmxlIHdyb3RlOgo+IEZy b206IE5pY29sYWkgSMOkaG5sZSA8bmljb2xhaS5oYWVobmxlQGFtZC5jb20+Cj4KPiBTa2lwIGFt ZGdwdV9nZW1fdmFfdXBkYXRlX3ZtIHdoZW4gc2hhZG93IHRoZSBwYWdlIGRpcmVjdG9yeSBpcyBz d2FwcGVkIG91dC4KPiBDbGVhbiB1cCB0aGUgY2hlY2sgZm9yIG5vbi1zaGFkb3cgQk9zIGFzIHdl bGwgdXNpbmcgdGhlIG5ldyBoZWxwZXIgZnVuY3Rpb24uCj4KPiBUaGlzIGZpeGVzIGEgY3Jhc2gg d2l0aCB0aGUgc3RhY2sgdHJhY2U6Cj4KPiBhbWRncHVfZ2VtX3ZhX3VwZGF0ZV92bQo+IC0+IGFt ZGdwdV92bV91cGRhdGVfcGFnZV9kaXJlY3RvcnkKPiAgIC0+IGFtZGdwdV90dG1fYmluZAo+ICAg IC0+IGFtZGdwdV9ndHRfbWdyX2FsbG9jCj4KPiBTaWduZWQtb2ZmLWJ5OiBOaWNvbGFpIEjDpGhu bGUgPG5pY29sYWkuaGFlaG5sZUBhbWQuY29tPgpSZXZpZXdlZC1ieTogQ2h1bm1pbmcgWmhvdSA8 ZGF2aWQxLnpob3VAYW1kLmNvbT4KPiAtLS0KPiAgIGRyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1 L2FtZGdwdV9nZW0uYyB8IDExICsrKysrKysrLS0tCj4gICAxIGZpbGUgY2hhbmdlZCwgOCBpbnNl cnRpb25zKCspLCAzIGRlbGV0aW9ucygtKQo+Cj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2Ry bS9hbWQvYW1kZ3B1L2FtZGdwdV9nZW0uYyBiL2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2Ft ZGdwdV9nZW0uYwo+IGluZGV4IGNkNjJmNmYuLjRlMWViMDUgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVy cy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2dlbS5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJt L2FtZC9hbWRncHUvYW1kZ3B1X2dlbS5jCj4gQEAgLTQ4OSw0NCArNDg5LDQ5IEBAIHN0YXRpYyBp bnQgYW1kZ3B1X2dlbV92YV9jaGVjayh2b2lkICpwYXJhbSwgc3RydWN0IGFtZGdwdV9ibyAqYm8p Cj4gICAgKiB2aXRhbCBoZXJlLCBzbyB0aGV5IGFyZSBub3QgcmVwb3J0ZWQgYmFjayB0byB1c2Vy c3BhY2UuCj4gICAgKi8KPiAgIHN0YXRpYyB2b2lkIGFtZGdwdV9nZW1fdmFfdXBkYXRlX3ZtKHN0 cnVjdCBhbWRncHVfZGV2aWNlICphZGV2LAo+ICAgCQkJCSAgICBzdHJ1Y3QgYW1kZ3B1X2JvX3Zh ICpib192YSwKPiAgIAkJCQkgICAgdWludDMyX3Qgb3BlcmF0aW9uKQo+ICAgewo+ICAgCXN0cnVj dCB0dG1fdmFsaWRhdGVfYnVmZmVyIHR2LCAqZW50cnk7Cj4gICAJc3RydWN0IGFtZGdwdV9ib19s aXN0X2VudHJ5IHZtX3BkOwo+ICAgCXN0cnVjdCB3d19hY3F1aXJlX2N0eCB0aWNrZXQ7Cj4gICAJ c3RydWN0IGxpc3RfaGVhZCBsaXN0LCBkdXBsaWNhdGVzOwo+IC0JdW5zaWduZWQgZG9tYWluOwo+ ICAgCWludCByOwo+ICAgCj4gICAJSU5JVF9MSVNUX0hFQUQoJmxpc3QpOwo+ICAgCUlOSVRfTElT VF9IRUFEKCZkdXBsaWNhdGVzKTsKPiAgIAo+ICAgCXR2LmJvID0gJmJvX3ZhLT5iby0+dGJvOwo+ ICAgCXR2LnNoYXJlZCA9IHRydWU7Cj4gICAJbGlzdF9hZGQoJnR2LmhlYWQsICZsaXN0KTsKPiAg IAo+ICAgCWFtZGdwdV92bV9nZXRfcGRfYm8oYm9fdmEtPnZtLCAmbGlzdCwgJnZtX3BkKTsKPiAg IAo+ICAgCS8qIFByb3ZpZGUgZHVwbGljYXRlcyB0byBhdm9pZCAtRUFMUkVBRFkgKi8KPiAgIAly ID0gdHRtX2V1X3Jlc2VydmVfYnVmZmVycygmdGlja2V0LCAmbGlzdCwgdHJ1ZSwgJmR1cGxpY2F0 ZXMpOwo+ICAgCWlmIChyKQo+ICAgCQlnb3RvIGVycm9yX3ByaW50Owo+ICAgCj4gICAJbGlzdF9m b3JfZWFjaF9lbnRyeShlbnRyeSwgJmxpc3QsIGhlYWQpIHsKPiAtCQlkb21haW4gPSBhbWRncHVf bWVtX3R5cGVfdG9fZG9tYWluKGVudHJ5LT5iby0+bWVtLm1lbV90eXBlKTsKPiArCQlzdHJ1Y3Qg YW1kZ3B1X2JvICpibyA9Cj4gKwkJCWNvbnRhaW5lcl9vZihlbnRyeS0+Ym8sIHN0cnVjdCBhbWRn cHVfYm8sIHRibyk7Cj4gKwo+ICAgCQkvKiBpZiBhbnl0aGluZyBpcyBzd2FwcGVkIG91dCBkb24n dCBzd2FwIGl0IGluIGhlcmUsCj4gICAJCSAgIGp1c3QgYWJvcnQgYW5kIHdhaXQgZm9yIHRoZSBu ZXh0IENTICovCj4gLQkJaWYgKGRvbWFpbiA9PSBBTURHUFVfR0VNX0RPTUFJTl9DUFUpCj4gKwkJ aWYgKCFhbWRncHVfYm9fZ3B1X2FjY2Vzc2libGUoYm8pKQo+ICsJCQlnb3RvIGVycm9yX3VucmVz ZXJ2ZTsKPiArCj4gKwkJaWYgKGJvLT5zaGFkb3cgJiYgIWFtZGdwdV9ib19ncHVfYWNjZXNzaWJs ZShiby0+c2hhZG93KSkKPiAgIAkJCWdvdG8gZXJyb3JfdW5yZXNlcnZlOwo+ICAgCX0KPiArCj4g ICAJciA9IGFtZGdwdV92bV92YWxpZGF0ZV9wdF9ib3MoYWRldiwgYm9fdmEtPnZtLCBhbWRncHVf Z2VtX3ZhX2NoZWNrLAo+ICAgCQkJCSAgICAgIE5VTEwpOwo+ICAgCWlmIChyKQo+ICAgCQlnb3Rv IGVycm9yX3VucmVzZXJ2ZTsKPiAgIAo+ICAgCXIgPSBhbWRncHVfdm1fdXBkYXRlX3BhZ2VfZGly ZWN0b3J5KGFkZXYsIGJvX3ZhLT52bSk7Cj4gICAJaWYgKHIpCj4gICAJCWdvdG8gZXJyb3JfdW5y ZXNlcnZlOwo+ICAgCj4gICAJciA9IGFtZGdwdV92bV9jbGVhcl9mcmVlZChhZGV2LCBib192YS0+ dm0pOwoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KYW1k LWdmeCBtYWlsaW5nIGxpc3QKYW1kLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9s aXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9hbWQtZ2Z4Cg==