From mboxrd@z Thu Jan 1 00:00:00 1970 From: zhoucm1 Subject: Re: [PATCH v2] drm/amd/amdgpu: add check that shadow page tables are GPU-accessible Date: Fri, 16 Dec 2016 10:48:19 +0800 Message-ID: <585355F3.9040009@amd.com> References: <1481821815-9971-6-git-send-email-nhaehnle@gmail.com> <1481824743-11139-1-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: <1481824743-11139-1-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?= CgpPbiAyMDE25bm0MTLmnIgxNuaXpSAwMTo1OSwgTmljb2xhaSBIw6RobmxlIHdyb3RlOgo+IEZy b206IE5pY29sYWkgSMOkaG5sZSA8bmljb2xhaS5oYWVobmxlQGFtZC5jb20+Cj4KPiBTa2lwIGFt ZGdwdV9nZW1fdmFfdXBkYXRlX3ZtIG90aGVyd2lzZS4gQWxzbyBjbGVhbiB1cCB0aGUgY2hlY2sg Zm9yIHRoZQo+IG5vbi1zaGFkb3cgcGFnZSB0YWJsZXMgdXNpbmcgdGhlIG5ldyBoZWxwZXIgZnVu Y3Rpb24uCj4KPiBUaGlzIGZpeGVzIGEgY3Jhc2ggd2l0aCB0aGUgc3RhY2sgdHJhY2U6Cj4KPiBh bWRncHVfZ2VtX3ZhX3VwZGF0ZV92bQo+IC0+IGFtZGdwdV92bV91cGRhdGVfcGFnZV9kaXJlY3Rv cnkKPiAgIC0+IGFtZGdwdV90dG1fYmluZAo+ICAgIC0+IGFtZGdwdV9ndHRfbWdyX2FsbG9jCj4K PiB2MjogYWN0dWFsbHkgY2hlY2sgYm8tPnNoYWRvdyBpbnN0ZWFkIG9mIGp1c3QgY2hlY2tpbmcg Ym8gdHdpY2UKPgo+IFNpZ25lZC1vZmYtYnk6IE5pY29sYWkgSMOkaG5sZSA8bmljb2xhaS5oYWVo bmxlQGFtZC5jb20+ClJldmlld2VkLWJ5OiBDaHVubWluZyBaaG91IDxkYXZpZDEuemhvdUBhbWQu Y29tPgo+IC0tLQo+ICAgZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2dlbS5jIHwg OSArKysrKystLS0KPiAgIDEgZmlsZSBjaGFuZ2VkLCA2IGluc2VydGlvbnMoKyksIDMgZGVsZXRp b25zKC0pCj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1 X2dlbS5jIGIvZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2dlbS5jCj4gaW5kZXgg NGUxZWIwNS4uOWJkMWI0ZSAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdw dS9hbWRncHVfZ2VtLmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVf Z2VtLmMKPiBAQCAtNDY0LDI2ICs0NjQsMjkgQEAgaW50IGFtZGdwdV9nZW1fbWV0YWRhdGFfaW9j dGwoc3RydWN0IGRybV9kZXZpY2UgKmRldiwgdm9pZCAqZGF0YSwKPiAgIAo+ICAgdW5yZXNlcnZl Ogo+ICAgCWFtZGdwdV9ib191bnJlc2VydmUocm9iaik7Cj4gICBvdXQ6Cj4gICAJZHJtX2dlbV9v YmplY3RfdW5yZWZlcmVuY2VfdW5sb2NrZWQoZ29iaik7Cj4gICAJcmV0dXJuIHI7Cj4gICB9Cj4g ICAKPiAgIHN0YXRpYyBpbnQgYW1kZ3B1X2dlbV92YV9jaGVjayh2b2lkICpwYXJhbSwgc3RydWN0 IGFtZGdwdV9ibyAqYm8pCj4gICB7Cj4gLQl1bnNpZ25lZCBkb21haW4gPSBhbWRncHVfbWVtX3R5 cGVfdG9fZG9tYWluKGJvLT50Ym8ubWVtLm1lbV90eXBlKTsKPiAtCj4gICAJLyogaWYgYW55dGhp bmcgaXMgc3dhcHBlZCBvdXQgZG9uJ3Qgc3dhcCBpdCBpbiBoZXJlLAo+ICAgCSAgIGp1c3QgYWJv cnQgYW5kIHdhaXQgZm9yIHRoZSBuZXh0IENTICovCj4gKwlpZiAoIWFtZGdwdV9ib19ncHVfYWNj ZXNzaWJsZShibykpCj4gKwkJcmV0dXJuIC1FUkVTVEFSVFNZUzsKPiArCj4gKwlpZiAoYm8tPnNo YWRvdyAmJiAhYW1kZ3B1X2JvX2dwdV9hY2Nlc3NpYmxlKGJvLT5zaGFkb3cpKQo+ICsJCXJldHVy biAtRVJFU1RBUlRTWVM7Cj4gICAKPiAtCXJldHVybiBkb21haW4gPT0gQU1ER1BVX0dFTV9ET01B SU5fQ1BVID8gLUVSRVNUQVJUU1lTIDogMDsKPiArCXJldHVybiAwOwo+ICAgfQo+ICAgCj4gICAv KioKPiAgICAqIGFtZGdwdV9nZW1fdmFfdXBkYXRlX3ZtIC11cGRhdGUgdGhlIGJvX3ZhIGluIGl0 cyBWTQo+ICAgICoKPiAgICAqIEBhZGV2OiBhbWRncHVfZGV2aWNlIHBvaW50ZXIKPiAgICAqIEBi b192YTogYm9fdmEgdG8gdXBkYXRlCj4gICAgKgo+ICAgICogVXBkYXRlIHRoZSBib192YSBkaXJl Y3RseSBhZnRlciBzZXR0aW5nIGl0J3MgYWRkcmVzcy4gRXJyb3JzIGFyZSBub3QKPiAgICAqIHZp dGFsIGhlcmUsIHNvIHRoZXkgYXJlIG5vdCByZXBvcnRlZCBiYWNrIHRvIHVzZXJzcGFjZS4KCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmFtZC1nZnggbWFp bGluZyBsaXN0CmFtZC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJl ZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vYW1kLWdmeAo=