From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_2 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3C521C433FF for ; Wed, 7 Aug 2019 15:24:24 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F42392199C for ; Wed, 7 Aug 2019 15:24:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F42392199C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 98ABEE8A; Wed, 7 Aug 2019 15:24:23 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id C9D71E77 for ; Wed, 7 Aug 2019 15:24:22 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [85.220.165.71]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 3E20D823 for ; Wed, 7 Aug 2019 15:24:22 +0000 (UTC) Received: from kresse.hi.pengutronix.de ([2001:67c:670:100:1d::2a]) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1hvNnX-00089B-00; Wed, 07 Aug 2019 17:24:19 +0200 Message-ID: <1565191457.2323.41.camel@pengutronix.de> Subject: Re: Regression due to d98849aff879 (dma-direct: handle DMA_ATTR_NO_KERNEL_MAPPING in common code) From: Lucas Stach To: Christoph Hellwig Date: Wed, 07 Aug 2019 17:24:17 +0200 In-Reply-To: <20190806154403.GA25050@lst.de> References: <1565082809.2323.24.camel@pengutronix.de> <20190806113318.GA20215@lst.de> <41cc93b1-62b5-7fb6-060d-01982e68503b@amd.com> <20190806140408.GA22902@lst.de> <1565100418.2323.32.camel@pengutronix.de> <20190806154403.GA25050@lst.de> X-Mailer: Evolution 3.22.6-1+deb9u2 Mime-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::2a X-SA-Exim-Mail-From: l.stach@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: iommu@lists.linux-foundation.org Cc: Halil Pasic , "Lendacky, Thomas" , "iommu@lists.linux-foundation.org" , "linux-kernel@vger.kernel.org" X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org QW0gRGllbnN0YWcsIGRlbiAwNi4wOC4yMDE5LCAxNzo0NCArMDIwMCBzY2hyaWViIENocmlzdG9w aCBIZWxsd2lnOgo+IE9uIFR1ZSwgQXVnIDA2LCAyMDE5IGF0IDA0OjA2OjU4UE0gKzAyMDAsIEx1 Y2FzIFN0YWNoIHdyb3RlOgo+ID4gCj4gPiBkbWFfZGlyZWN0X2ZyZWVfcGFnZXMoKSB0aGVuIG5l ZWRzIHRoZSBzYW1lIGNoZWNrLCBhcyBvdGhlcndpc2UgdGhlIGNwdQo+ID4gYWRkcmVzcyBpcyB0 cmVhdGVkIGFzIGEgY29va2llIGluc3RlYWQgb2YgYSByZWFsIGFkZHJlc3MgYW5kIHRoZQo+ID4g ZW5jcnlwdGlvbiBuZWVkcyB0byBiZSByZS1lbmFibGVkLgo+IAo+IE9rLCBsZXRzIHRyeSB0aGlz IG9uZSBpbnN0ZWFkOgo+IAo+IC0tCj4gRnJvbSAzYTdhYTlmZTM4YTVlYWU1ZDg3OTgzMWI0Zjhj MTAzMmU3MzVhMGI2IE1vbiBTZXAgMTcgMDA6MDA6MDAgMjAwMQo+IEZyb206IENocmlzdG9waCBI ZWxsd2lnIDxoY2hAbHN0LmRlPgo+IERhdGU6IFR1ZSwgNiBBdWcgMjAxOSAxNDozMzoyMyArMDMw MAo+IFN1YmplY3Q6IGRtYS1kaXJlY3Q6IGZpeCBETUFfQVRUUl9OT19LRVJORUxfTUFQUElORwo+ IAo+IFRoZSBuZXcgRE1BX0FUVFJfTk9fS0VSTkVMX01BUFBJTkcgbmVlZHMgdG8gYWN0dWFsbHkg YXNzaWduCj4gYSBkbWFfYWRkciB0byB3b3JrLsKgwqBBbHNvIHNraXAgaXQgaWYgdGhlIGFyY2hp dGVjdHVyZSBuZWVkcwo+IGZvcmNlZCBkZWNyeXB0aW9uIGhhbmRsaW5nLCBhcyB0aGF0IG5lZWRz IGEga2VybmVsIHZpcnR1YWwKPiBhZGRyZXNzLgo+IAo+IEZpeGVzOiBkOTg4NDlhZmY4NzkgKGRt YS1kaXJlY3Q6IGhhbmRsZSBETUFfQVRUUl9OT19LRVJORUxfTUFQUElORyBpbiBjb21tb24gY29k ZSkKPiBTaWduZWQtb2ZmLWJ5OiBDaHJpc3RvcGggSGVsbHdpZyA8aGNoQGxzdC5kZT4KPiAtLS0K PiDCoGtlcm5lbC9kbWEvZGlyZWN0LmMgfCA3ICsrKysrLS0KPiDCoDEgZmlsZSBjaGFuZ2VkLCA1 IGluc2VydGlvbnMoKyksIDIgZGVsZXRpb25zKC0pCj4gCj4gZGlmZiAtLWdpdCBhL2tlcm5lbC9k bWEvZGlyZWN0LmMgYi9rZXJuZWwvZG1hL2RpcmVjdC5jCj4gaW5kZXggNTliZGNlZWEzNzM3Li40 YzIxMWM4N2E3MTkgMTAwNjQ0Cj4gLS0tIGEva2VybmVsL2RtYS9kaXJlY3QuYwo+ICsrKyBiL2tl cm5lbC9kbWEvZGlyZWN0LmMKPiBAQCAtMTMwLDExICsxMzAsMTMgQEAgdm9pZCAqZG1hX2RpcmVj dF9hbGxvY19wYWdlcyhzdHJ1Y3QgZGV2aWNlICpkZXYsIHNpemVfdCBzaXplLAo+IMKgCWlmICgh cGFnZSkKPiDCoAkJcmV0dXJuIE5VTEw7Cj4gwqAKPiAtCWlmIChhdHRycyAmIERNQV9BVFRSX05P X0tFUk5FTF9NQVBQSU5HKSB7Cj4gKwlpZiAoKGF0dHJzICYgRE1BX0FUVFJfTk9fS0VSTkVMX01B UFBJTkcpICYmCj4gKwnCoMKgwqDCoCFmb3JjZV9kbWFfdW5lbmNyeXB0ZWQoZGV2KSkgewo+IMKg CQkvKiByZW1vdmUgYW55IGRpcnR5IGNhY2hlIGxpbmVzIG9uIHRoZSBrZXJuZWwgYWxpYXMgKi8K PiDCoAkJaWYgKCFQYWdlSGlnaE1lbShwYWdlKSkKPiDCoAkJCWFyY2hfZG1hX3ByZXBfY29oZXJl bnQocGFnZSwgc2l6ZSk7Cj4gwqAJCS8qIHJldHVybiB0aGUgcGFnZSBwb2ludGVyIGFzIHRoZSBv cGFxdWUgY29va2llICovCj4gKwkJKmRtYV9oYW5kbGUgPSBwaHlzX3RvX2RtYShkZXYsIHBhZ2Vf dG9fcGh5cyhwYWdlKSk7CgpJIHdvdWxkIHN1Z2dlc3QgdG8gcGxhY2UgdGhpcyBsaW5lIGFib3Zl IHRoZSBjb21tZW50LCBhcyB0aGUgY29tbWVudApvbmx5IHJlYWxseSBhcHBsaWVzIHRvIHRoZSBy ZXR1cm4gdmFsdWUuIE90aGVyIHRoYW4gdGhpcyBuaXRwaWNrLCB0aGlzCm1hdGNoZXMgbXkgdW5k ZXJzdGFuZGluZyBvZiB0aGUgcmVxdWlyZWQgY2hhbmdlcywgc286CgpSZXZpZXdlZC1ieTogTHVj YXMgU3RhY2ggPGwuc3RhY2hAcGVuZ3V0cm9uaXguZGU+CgoKPiDCoAkJcmV0dXJuIHBhZ2U7Cj4g wqAJfQo+IMKgCj4gQEAgLTE3OCw3ICsxODAsOCBAQCB2b2lkIGRtYV9kaXJlY3RfZnJlZV9wYWdl cyhzdHJ1Y3QgZGV2aWNlICpkZXYsIHNpemVfdCBzaXplLCB2b2lkICpjcHVfYWRkciwKPiDCoHsK PiDCoAl1bnNpZ25lZCBpbnQgcGFnZV9vcmRlciA9IGdldF9vcmRlcihzaXplKTsKPiDCoAo+IC0J aWYgKGF0dHJzICYgRE1BX0FUVFJfTk9fS0VSTkVMX01BUFBJTkcpIHsKPiArCWlmICgoYXR0cnMg JiBETUFfQVRUUl9OT19LRVJORUxfTUFQUElORykgJiYKPiArCcKgwqDCoMKgIWZvcmNlX2RtYV91 bmVuY3J5cHRlZChkZXYpKSB7Cj4gwqAJCS8qIGNwdV9hZGRyIGlzIGEgc3RydWN0IHBhZ2UgY29v a2llLCBub3QgYSBrZXJuZWwgYWRkcmVzcyAqLwo+IMKgCQlfX2RtYV9kaXJlY3RfZnJlZV9wYWdl cyhkZXYsIHNpemUsIGNwdV9hZGRyKTsKPiDCoAkJcmV0dXJuOwpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwppb21tdSBtYWlsaW5nIGxpc3QKaW9tbXVAbGlz dHMubGludXgtZm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3Jn L21haWxtYW4vbGlzdGluZm8vaW9tbXU=