From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleksandr Andrushchenko Subject: Re: arm64: dma_to_phys/phys_to_dma need to be properly implemented Date: Fri, 31 Mar 2017 11:15:47 +0300 Message-ID: <9c8c5601-8bfe-49f6-d15e-4b2f27da29cc@gmail.com> References: <8799767d-43fd-e6b3-e616-06970db600e7@gmail.com> <352020e8-53d5-d9f5-99d8-c8c491c5bc74@gmail.com> <750d893f-1e80-4306-36f6-c8e471b77638@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ctrip-0007Fw-4n for xen-devel@lists.xenproject.org; Fri, 31 Mar 2017 08:15:51 +0000 Received: by mail-wr0-f176.google.com with SMTP id w11so93323915wrc.3 for ; Fri, 31 Mar 2017 01:15:49 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Stefano Stabellini Cc: xen-devel , Julien Grall List-Id: xen-devel@lists.xenproject.org SGksIFN0ZWZhbm8KClVuZm9ydHVuYXRlbHkgSSBoYWQgdG8gc3dpdGNoIHRvIG90aGVyIHRhc2tz LAoKYnV0IEknbGwgZ2V0IGJhY2sgdG8gdGhpcyBpc3N1ZSBhc2FwCgpUaGFuayB5b3UKCgpPbiAw My8zMC8yMDE3IDAxOjM2IEFNLCBTdGVmYW5vIFN0YWJlbGxpbmkgd3JvdGU6Cj4gT24gV2VkLCAy OSBNYXIgMjAxNywgT2xla3NhbmRyIEFuZHJ1c2hjaGVua28gd3JvdGU6Cj4+IEhpLCBTdGVmYW5v IQo+Pgo+PiBPaywgcHJvYmFibHkgSSBuZWVkIHRvIHB1dCBtb3JlIGRldGFpbHMgaW50byB0aGUg dXNlLWNhc2UKPj4gc28gaXQgaXMgY2xlYXIuIFdoYXQgSSBhbSBkb2luZyBpcyBhIERSTSBkcml2 ZXIgd2hpY2gKPj4gdXRpbGl6ZXMgUFJJTUUgYnVmZmVyIHNoYXJpbmcgWzFdIHRvIGltcGxlbWVu dCB6ZXJvLWNvcHkKPj4gb2YgZGlzcGxheSBidWZmZXJzIGJldHdlZW4gRG9tVSBhbmQgRG9tMC4g UFJJTUUgaXMgYmFzZWQgb24KPj4gRE1BIEJ1ZmZlciBTaGFyaW5nIEFQSSBbMl0sIHNvIHRoaXMg aXMgdGhlIHJlYXNvbiBJIGFtCj4+IGRlYWxpbmcgd2l0aCBzZ190YWJsZSBoZXJlLgo+Pgo+PiBP biAwMy8yOC8yMDE3IDEwOjIwIFBNLCBTdGVmYW5vIFN0YWJlbGxpbmkgd3JvdGU6Cj4+PiBPbiBU dWUsIDI4IE1hciAyMDE3LCBPbGVrc2FuZHIgQW5kcnVzaGNoZW5rbyB3cm90ZToKPj4+PiBIaSwg U3RlZmFubyEKPj4+Pgo+Pj4+IE9uIDAzLzI3LzIwMTcgMTE6MjMgUE0sIFN0ZWZhbm8gU3RhYmVs bGluaSB3cm90ZToKPj4+Pj4gSGVsbG8gT2xla3NhbmRyLAo+Pj4+Pgo+Pj4+PiBKdXN0IHRvIGNs YXJpZnksIHlvdSBhcmUgdGFsa2luZyBhYm91dCBkbWFfdG9fcGh5cy9waHlzX3RvX2RtYSBpbiBM aW51eAo+Pj4+PiAobm90IGluIFhlbiksIHJpZ2h0Pwo+Pj4+IEkgYW0gdGFsa2luZyBhYm91dCBM aW51eCwgc29ycnkgSSB3YXMgbm90IGNsZWFyCj4+Pj4+IERyaXZlcnMgc2hvdWxkbid0IHVzZSB0 aG9zZSBmdW5jdGlvbnMgZGlyZWN0bHkgKHNlZSB0aGUgY29tbWVudCBpbgo+Pj4+PiBhcmNoL2Fy bTY0L2luY2x1ZGUvYXNtL2RtYS1tYXBwaW5nLmgpLCB0aGV5IHNob3VsZCBjYWxsIHRoZSBhcHBy b3ByaWF0ZQo+Pj4+PiBkbWFfbWFwX29wcyBmdW5jdGlvbnMgaW5zdGVhZC4KPj4+PiBZZXMsIHlv dSBhcmUgY29ycmVjdCBhbmQgSSBrbm93IGFib3V0IHRoaXMgYW5kIGRvIG5vdCBjYWxsCj4+Pj4g ZG1hX3RvX3BoeXMvcGh5c190b19kbWEgZGlyZWN0bHkKPj4+Pj4gICAgIFRoZSBkbWFfbWFwX29w cyBmdW5jdGlvbnMgc2hvdWxkIGRvIHRoZQo+Pj4+PiByaWdodCB0aGluZyBvbiBYZW4sIGV2ZW4g Zm9yIHBhZ2VzIHdoZXJlIHBmbiAhPSBtZm4sIHRoYW5rcyB0byB0aGUKPj4+Pj4gc3dpb3RsYi14 ZW4gKGRyaXZlcnMveGVuL3N3aW90bGIteGVuLmMpLiBTcGVjaWZpY2FsbHksIHlvdSBjYW4gc2Vl IHRoZQo+Pj4+PiBzcGVjaWFsIGNhc2UgZm9yIHBmbiAhPSBtZm4gaGVyZSAoc2VlIHRoZSAibG9j YWwiIHZhcmlhYmxlKToKPj4+Pj4KPj4+Pj4gYXJjaC9hcm0vaW5jbHVkZS9hc20veGVuL3BhZ2Ut Y29oZXJlbnQuaDp4ZW5fZG1hX21hcF9wYWdlCj4+Pj4gWWVzLCB0aGUgc2NlbmFyaW9zIHdpdGgg cGZuICE9IG1mbiB3ZSBoYWQgc28KPj4+PiBmYXIgYXJlIGFsbCB3b3JraW5nIGNvcnJlY3QKPj4+ Pj4gU28sIHdoeSBhcmUgeW91IGNhbGxpbmcgZG1hX3RvX3BoeXMgYW5kIHBoeXNfdG9fZG1hIGlu c3RlYWQgb2YgdGhlCj4+Pj4+IGRtYV9tYXBfb3BzIGZ1bmN0aW9ucz8KPj4+PiBPaywgbGV0IG1l IGdpdmUgeW91IGFuIGV4YW1wbGUgb2YgZmFpbGluZyBzY2VuYXJpbyB3aGljaAo+Pj4+IHdhcyBu b3QgdXNlZCBiZWZvcmUgdGhpcyBieSBhbnkgYmFja2VuZCAodGhpcyBpcyBmcm9tCj4+Pj4gbXkg d29yayBvbiBpbXBsZW1lbnRpbmcgemVybyBjb3B5IGZvciBEUk0gZHJpdmVycyk6Cj4+Pj4KPj4+ PiAxLiBDcmVhdGUgc2cgdGFibGUgZnJvbSBwYWdlczoKPj4+PiBzZ19hbGxvY190YWJsZV9mcm9t X3BhZ2VzKHNndCwgUEZOXzAsIC4uLik7Cj4+Pj4gbWFwIGl0IGFuZCBnZXQgZGV2X2J1c19hZGRy IC0gYXQgdGhpcyBzdGFnZSBzZyB0YWJsZSBpcwo+Pj4+IHBlcmZlY3RseSBjb3JyZWN0IGFuZCBw cm9wZXJseSBtYXBwZWQsCj4+Pj4gZGV2X2J1c19hZGRyID09IChNRk5fdSA8PCBQQUdFX1NISUZU KQo+Pj4gTGV0IG1lIGdldCB0aGlzIHN0cmFpZ2h0OiBvbmUgb2YgdGhlIHBhZ2VzIHBhc3NlZCB0 bwo+Pj4gc2dfYWxsb2NfdGFibGVfZnJvbV9wYWdlcyBpcyBhY3R1YWxseSBhIGZvcmVpZ24gcGFn ZSAocGZuICE9IG1mbiksIGlzCj4+PiB0aGF0IHJpZ2h0Pwo+Pj4KPj4+IEFuZCBieSAibWFwIiwg eW91IG1lYW4gZG1hX2dldF9zZ3RhYmxlX2F0dHJzIGlzIGNhbGxlZCBvbiBpdCwgcmlnaHQ/Cj4+ IFdoYXQgaGFwcGVuaW5nIGhlcmUgaXM6Cj4+IC0tLS0tLS0tLS0tLS0gbXkgZHJpdmVyIC0tLS0t LS0tLS0tLQo+PiAxLiBJIGNyZWF0ZSBhbiBzZyB0YWJsZSBmcm9tIHBhZ2VzIHdpdGggcGZuICE9 IG1mbiAoUEZOXzAvTUZOX3UpCj4+IHVzaW5nIGRybV9wcmltZV9wYWdlc190b19zZyBbM10gd2hp Y2ggZWZmZWN0aXZlbHkgaXMKPj4gc2dfYWxsb2NfdGFibGVfZnJvbV9wYWdlcwo+PiAtLS0tLS0t LS0tLS0tIERSTSBmcmFtZXdvcmsgLS0tLS0tLS0tLS0tCj4+IDIuIEkgcGFzcyB0aGUgc2d0IHZp YSBQUklNRSB0byB0aGUgcmVhbCBkaXNwbGF5IGRyaXZlcgo+PiBhbmQgaXQgZG9lcyBkcm1fZ2Vt X21hcF9kbWFfYnVmIFs0XQo+PiAzLiBTbywgYXQgdGhpcyBwb2ludCBldmVyeXRpbmcgaXMganVz dCBmaW5lLCBiZWNhdXNlIHNndCBpcwo+PiBjb3JyZWN0IChzZ2wtPnBhZ2VfbGluayBwb2ludHMg dG8gbXkgUEZOXzAgYW5kIHAybSB0cmFuc2xhdGlvbgo+PiBzdWNjZWVkcykKPj4gLS0tLS0tLS0t LS0tLSByZWFsIEhXIERSTSBkcml2ZXIgLS0tLS0tLS0tLS0tCj4+IDQuIFdoZW4gcmVhbCBIVyBk aXNwbGF5IGRyaXZlciBhY2Nlc3NlcyBzZ3QgaXQgY2FsbHMgZG1hX2dldF9zZ3RhYmxlCj4+IFs1 XSBhbmQgdGhlbiBkbWFfbWFwX3NnIFs2XS4gQW5kIGFsbCB0aGlzIGlzIGhhcHBlbmluZyBvbiB0 aGUgc2d0Cj4+IHdoaWNoIG15IGRyaXZlciBoYXMgcHJvdmlkZWQsIGJ1dCBQRk5fMCBpcyBub3Qg aG9ub3JlZCBhbnltb3JlCj4+IGJlY2F1c2UgZG1hX2dldF9zZ3RhYmxlIGlzIGV4cGVjdGVkIHRv IGJlIGFibGUgdG8gZmlndXJlIG91dAo+PiBwZm4gZnJvbSB0aGUgY29ycmVzcG9uZGluZyBETUEg YWRkcmVzcy4KPj4KPj4gU28sIHN0cmljdGx5IHNwZWFraW5nIHJlYWwgSFcgRFJNIGRyaXZlciBo YXMgbm8gaXNzdWVzLAo+PiB0aGUgQVBJIGl0IHVzZXMgaXMgcGVyZmVjdGx5IHZhbGlkLgo+Pj4+ IDIuIER1cGxpY2F0ZSBpdDoKPj4+PiBkbWFfZ2V0X3NndGFibGUoLi4uLCBzZ3QsIC4uLiBkZXZf YnVzX2FkZHIsLi4uKTsKPj4+IFllYWgsIGlmIG9uZSBvZiB0aGUgcGFnZXMgcGFzc2VkIHRvIHNn X2FsbG9jX3RhYmxlX2Zyb21fcGFnZXMgaXMKPj4+IGZvcmVpZ24sIGFzIEFuZHJpaSBwb2ludGVk IG91dCwgZG1hX2dldF9zZ3RhYmxlCj4+PiAoeGVuX3N3aW90bGJfZ2V0X3NndGFibGUpIGRvZXNu J3QgYWN0dWFsbHkgd29yay4KPj4gVGhpcyBpcyB0aGUgY2FzZQo+Pj4gSXMgaXQgbGVnaXRpbWF0 ZSB0aGF0IG9uZSBvZiB0aG9zZSBwYWdlcyBpcyBmb3JlaWduIG9yIGlzIGl0IGEgbWlzdGFrZT8K Pj4gVGhpcyBpcyB0aGUgZ29hbCAtIEkgd2FudCBwYWdlcyBmcm9tIERvbVUgdG8gYmUgZGlyZWN0 bHkKPj4gYWNjZXNzZWQgYnkgdGhlIEhXIGluIERvbTAgKEkgaGF2ZSBEb21VIDE6MSBtYXBwZWQs Cj4+IHNvIGV2ZW4gY29udGlndW91cyBidWZmZXJzIGNhbiBjb21lIGZyb20gRG9tVSwgaWYgbm90 Cj4+IDE6MSB0aGVuIElQTU1VIHdpbGwgYmUgaW4gcGxhY2UpCj4+PiBJZiBpdCBpcyBhIG1pc3Rh a2UsIHlvdSBjb3VsZCBmaXggaXQuCj4+ICBGcm9tIHRoZSBhYm92ZSAtIHRoaXMgaXMgdGhlIGlu dGVudGlvbgo+Pj4gICAgT3RoZXJ3aXNlLCBpZiB0aGUgdXNlIG9mCj4+PiBzZ19hbGxvY190YWJs ZV9mcm9tX3BhZ2VzIG9yIHRoZSBmb2xsb3dpbmcgY2FsbCB0byBkbWFfZ2V0X3NndGFibGUgYXJl Cj4+PiBwYXJ0IG9mIHlvdXIgY29kZSwgSSBzdWdnZXN0IHlvdSB3b3JrLWFyb3VuZCB0aGUgcHJv YmxlbSBieSBhdm9pZGluZwo+Pj4gdGhlIGRtYV9nZXRfc2d0YWJsZSBjYWxsIGFsdG9nZXRoZXIu Cj4+IEFzIHNlZW4gZnJvbSB0aGUgYWJvdmUgdGhlIHByb2JsZW1hdGljIHBhcnQgaXMgbm90IGlu IG15Cj4+IGRyaXZlciwgaXQgaXMgZWl0aGVyIERSTSBmcmFtZXdvcmsgb3IgSFcgZGlzcGxheSBk cml2ZXIKPj4+ICAgIERvbid0IHVzZSB0aGUgc2dfIGRtYSBhcGksIHVzZSB0aGUKPj4+IHJlZ3Vs YXIgZG1hIGFwaSBpbnN0ZWFkLgo+PiBJIHVzZSB3aGF0IERSTSBwcm92aWRlcyBhbmQgZG1hX3h4 eCBpZiBzb21ldGhpbmcgaXMgbWlzc2VkCj4+Pgo+Pj4gVW5mb3J0dW5hdGVseSwgaWYgdGhlIGRt YV9nZXRfc2d0YWJsZSBpcyBwYXJ0IG9mIGV4aXN0aW5nIGNvZGUsIHRoZW4gd2UKPj4+IGhhdmUg YSBwcm9ibGVtLiBJbiB0aGF0IGNhc2UsIGNvdWxkIHlvdSBwb2ludCBtZSB0byB0aGUgY29kZSB0 aGF0IGNhbGwKPj4+IGRtYV9nZXRfc2d0YWJsZT8KPj4gVGhpcyBpcyB0aGUgY2FzZSwgc2VlIFs1 XQo+Pj4gVGhlcmUgaXMgbm8gZWFzeSB3YXkgdG8gbWFrZSBpdCB3b3JrIG9uIFhlbjogdmlydF90 b19waHlzIGRvZXNuJ3Qgd29yawo+Pj4gb24gQVJNIGFuZCBkbWFfdG9fcGh5cyBkb2Vzbid0IHdv cmsgb24gWGVuLiBXZSBjb3VsZCBpbXBsZW1lbnQKPj4+IHhlbl9zd2lvdGxiX2dldF9zZ3RhYmxl IGNvcnJlY3RseSBpZiB3ZSBoYWQgdGhlIHBoeXNpY2FsIGFkZHJlc3Mgb2YgdGhlCj4+PiBwYWdl LCBiZWNhdXNlIHdlIGNvdWxkIGVhc2lseSBmaW5kIG91dCBpZiB0aGUgcGFnZSBpcyBsb2NhbCBv ciBmb3JlaWduCj4+PiB3aXRoIGEgcGZuICE9IG1mbiBjaGVjayAoc2ltaWxhciB0byB0aGUgb25l IGluCj4+PiBpbmNsdWRlL3hlbi9hcm0vcGFnZS1jb2hlcmVudC5oOnhlbl9kbWFfbWFwX3BhZ2Up Lgo+PiBZZXMsIEkgc2F3IHRoaXMgY29kZSBhbmQgaXQgaGVscGVkIG1lIHRvIGZpZ3VyZSBvdXQK Pj4gd2hlcmUgdGhlIHVzZS1jYXNlIGZhaWxzCj4+PiBJZiB0aGUgcGFnZSBpcyBsb2NhbCwgdGhl biB3ZSB3b3VsZCBkbyB3aGF0IHdlIGRvIHRvZGF5LiBJZiB0aGUgcGFnZSBpcwo+Pj4gZm9yZWln biwgdGhlbiB3ZSB3b3VsZCBuZWVkIHRvIGRvIHNvbWV0aGluZyBsaWtlOgo+Pj4KPj4+ICAgICAg IGludCByZXQgPSBzZ19hbGxvY190YWJsZShzZ3QsIDEsIEdGUF9LRVJORUwpOwo+Pj4KPj4+IAlp ZiAoIXJldCkgewo+Pj4gCQlzZ19zZXRfcGFnZShzZ3QtPnNnbCwgcGh5c190b19wYWdlKHBoeXMp LCBQQUdFX0FMSUdOKHNpemUpLAo+Pj4gMCk7Cj4+PiAJCXNndC0+c2dsLT5kbWFfYWRkcmVzcyA9 IGRldl9hZGRyOwo+Pj4gCX0KPj4gQWdyZWUsIHRoZSBjcnVjaWFsIHBhcnQgaGVyZSBwaHlzX3Rv X3BhZ2UocGh5cyk6IHdlIG5lZWQgbWZuLT5wZm4KPj4+IE5vdyB0aGUgcXVlc3Rpb24gaXMsIGhv dyBkbyB3ZSBnZXQgdGhlIHBzZXVkby1waHlzaWNhbCBhZGRyZXNzIG9mIHRoZQo+Pj4gcGFnZT8K Pj4geWVzLCB0aGlzIGlzIHRoZSByb290IG9mIHRoZSBwcm9ibGVtCj4+PiBXZSBjb3VsZCBwYXJz ZSB0aGUgc3RhZ2UxIHBhZ2UgdGFibGUgZW50cnkgb2YgdGhlIGtlcm5lbCwgb3Igd2UKPj4+IGNv dWxkIHVzZSB0aGUgImF0IiBpbnN0cnVjdGlvbiAoc2VlIGZvciBleGFtcGxlIGd2YV90b19pcGFf cGFyIGluIHhlbikuCj4+PiBJdCBpcyBhIGJpdCByb3VnaCwgYnV0IEkgY2Fubm90IHRoaW5rIG9m IGFueXRoaW5nIGVsc2UuCj4+IE1lIG5laXRoZXIsIHRoaXMgaXMgd2h5IEkgaG9wZSBjb21tdW5p dHkgd2lsbCBoZWxwIGhlcmUuLi4KPj4gT3RoZXJ3aXNlIEknbGwgbmVlZCB0byBwYXRjaCBrZXJu ZWwgZHJpdmVycyBpZiBpdCdzIHN0aWxsIHBvc3NpYmxlLgo+IElmIHlvdSBjYW4gY29tZSB1cCB3 aXRoIGEgcGF0Y2ggdGhhdCBvbmx5IGFmZmVjdHMKPiB4ZW5fc3dpb3RsYl9nZXRfc2d0YWJsZSwg YW5kIHRyYW5zbGF0ZXMgc3VjY2Vzc2Z1bGx5IHZvaWQgKmNwdV9hZGRyIGludG8KPiBhIHBoeXNp Y2FsIGFkZHJlc3MgdXNpbmcgImF0IiwgSSB0aGluayBJIHdvdWxkIHRha2UgdGhhdCBwYXRjaC4g SSB3b3VsZAo+IHJlY29tbWVuZCB0byB0ZXN0IHRoZSBwYXRjaCBvbiBBUk0zMiB0b28sIHdoZXJl IHZpcnRfdG9fcGh5cyByZWxpYWJseQo+IGZhaWxzLgo+Cj4gSSBkb24ndCB0aGluayB3ZSBjYW4g YXNrIHRoZSBjb21tdW5pdHkgdG8gZHJvcCBkbWFfZ2V0X3NndGFibGUgb24gdGhlCj4gYmFzaXMg dGhhdCB0aGUgRE1BIGFwaSBpcyBicm9rZW4uCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlz dHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==