From mboxrd@z Thu Jan 1 00:00:00 1970 From: zhoucm1 Subject: Re: [PATCH 5/5] drm/amd/amdgpu: add check that shadow page tables are GPU-accessible Date: Fri, 16 Dec 2016 10:07:54 +0800 Message-ID: <58534C7A.9090106@amd.com> References: <1481821815-9971-1-git-send-email-nhaehnle@gmail.com> <1481821815-9971-6-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: <1481821815-9971-6-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 ZGdwdV9nZW1fdmFfdXBkYXRlX3ZtIG90aGVyd2lzZS4gQWxzbyBjbGVhbiB1cCB0aGUgY2hlY2sg Zm9yIHRoZQo+IG5vbi1zaGFkb3cgcGFnZSB0YWJsZXMgdXNpbmcgdGhlIG5ldyBoZWxwZXIgZnVu Y3Rpb24uCj4KPiBUaGlzIGZpeGVzIGEgY3Jhc2ggd2l0aCB0aGUgc3RhY2sgdHJhY2U6Cj4KPiBh bWRncHVfZ2VtX3ZhX3VwZGF0ZV92bQo+IC0+IGFtZGdwdV92bV91cGRhdGVfcGFnZV9kaXJlY3Rv cnkKPiAgIC0+IGFtZGdwdV90dG1fYmluZAo+ICAgIC0+IGFtZGdwdV9ndHRfbWdyX2FsbG9jCj4K PiBTaWduZWQtb2ZmLWJ5OiBOaWNvbGFpIEjDpGhubGUgPG5pY29sYWkuaGFlaG5sZUBhbWQuY29t Pgo+IC0tLQo+ICAgZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2dlbS5jIHwgOSAr KysrKystLS0KPiAgIDEgZmlsZSBjaGFuZ2VkLCA2IGluc2VydGlvbnMoKyksIDMgZGVsZXRpb25z KC0pCj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2dl bS5jIGIvZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2dlbS5jCj4gaW5kZXggNGUx ZWIwNS4uZDkxYzgwYiAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9h bWRncHVfZ2VtLmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfZ2Vt LmMKPiBAQCAtNDY0LDI2ICs0NjQsMjkgQEAgaW50IGFtZGdwdV9nZW1fbWV0YWRhdGFfaW9jdGwo c3RydWN0IGRybV9kZXZpY2UgKmRldiwgdm9pZCAqZGF0YSwKPiAgIAo+ICAgdW5yZXNlcnZlOgo+ ICAgCWFtZGdwdV9ib191bnJlc2VydmUocm9iaik7Cj4gICBvdXQ6Cj4gICAJZHJtX2dlbV9vYmpl Y3RfdW5yZWZlcmVuY2VfdW5sb2NrZWQoZ29iaik7Cj4gICAJcmV0dXJuIHI7Cj4gICB9Cj4gICAK PiAgIHN0YXRpYyBpbnQgYW1kZ3B1X2dlbV92YV9jaGVjayh2b2lkICpwYXJhbSwgc3RydWN0IGFt ZGdwdV9ibyAqYm8pCj4gICB7Cj4gLQl1bnNpZ25lZCBkb21haW4gPSBhbWRncHVfbWVtX3R5cGVf dG9fZG9tYWluKGJvLT50Ym8ubWVtLm1lbV90eXBlKTsKPiAtCj4gICAJLyogaWYgYW55dGhpbmcg aXMgc3dhcHBlZCBvdXQgZG9uJ3Qgc3dhcCBpdCBpbiBoZXJlLAo+ICAgCSAgIGp1c3QgYWJvcnQg YW5kIHdhaXQgZm9yIHRoZSBuZXh0IENTICovCj4gKwlpZiAoIWFtZGdwdV9ib19ncHVfYWNjZXNz aWJsZShibykpCj4gKwkJcmV0dXJuIC1FUkVTVEFSVFNZUzsKPiArCj4gKwlpZiAoYm8tPnNoYWRv dyAmJiAhYW1kZ3B1X2JvX2dwdV9hY2Nlc3NpYmxlKGJvKSkKCnRoaXMgc2hvdWxkIGJlICdpZiAo Ym8tPnNoYWRvdyAmJiAhYW1kZ3B1X2JvX2dwdV9hY2Nlc3NpYmxlKGJvLT5zaGFkb3cpKScuCgpS ZWdhcmRzLApEYXZpZCBaaG91Cgo+ICsJCXJldHVybiAtRVJFU1RBUlRTWVM7Cj4gICAKPiAtCXJl dHVybiBkb21haW4gPT0gQU1ER1BVX0dFTV9ET01BSU5fQ1BVID8gLUVSRVNUQVJUU1lTIDogMDsK PiArCXJldHVybiAwOwo+ICAgfQo+ICAgCj4gICAvKioKPiAgICAqIGFtZGdwdV9nZW1fdmFfdXBk YXRlX3ZtIC11cGRhdGUgdGhlIGJvX3ZhIGluIGl0cyBWTQo+ICAgICoKPiAgICAqIEBhZGV2OiBh bWRncHVfZGV2aWNlIHBvaW50ZXIKPiAgICAqIEBib192YTogYm9fdmEgdG8gdXBkYXRlCj4gICAg Kgo+ICAgICogVXBkYXRlIHRoZSBib192YSBkaXJlY3RseSBhZnRlciBzZXR0aW5nIGl0J3MgYWRk cmVzcy4gRXJyb3JzIGFyZSBub3QKPiAgICAqIHZpdGFsIGhlcmUsIHNvIHRoZXkgYXJlIG5vdCBy ZXBvcnRlZCBiYWNrIHRvIHVzZXJzcGFjZS4KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fCmFtZC1nZnggbWFpbGluZyBsaXN0CmFtZC1nZnhAbGlzdHMuZnJl ZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGlu Zm8vYW1kLWdmeAo=