From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Stabellini Subject: Re: [PATCH v2 2/2] swiotlb-xen: implement xen_swiotlb_get_sgtable callback Date: Mon, 16 Jan 2017 17:09:24 -0800 (PST) Message-ID: References: <1484565592-24897-1-git-send-email-andrii.anisov@gmail.com> <1484565592-24897-3-git-send-email-andrii.anisov@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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 1cTIHF-00008p-Jm for xen-devel@lists.xenproject.org; Tue, 17 Jan 2017 01:09:33 +0000 In-Reply-To: <1484565592-24897-3-git-send-email-andrii.anisov@gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Andrii Anisov Cc: xen-devel@lists.xenproject.org, julien.grall@arm.com, sstabellini@kernel.org, andrii_anisov@epam.com List-Id: xen-devel@lists.xenproject.org T24gTW9uLCAxNiBKYW4gMjAxNywgQW5kcmlpIEFuaXNvdiB3cm90ZToKPiBGcm9tOiBBbmRyaWkg QW5pc292IDxhbmRyaWlfYW5pc292QGVwYW0uY29tPgo+IAo+IFNpZ25lZC1vZmYtYnk6IEFuZHJp aSBBbmlzb3YgPGFuZHJpaV9hbmlzb3ZAZXBhbS5jb20+CgpUaGFua3MgZm9yIHRoZSBwYXRjaCEK Cgo+ICBhcmNoL2FybS94ZW4vbW0uYyB8IDExICsrKysrKysrKysrCj4gIDEgZmlsZSBjaGFuZ2Vk LCAxMSBpbnNlcnRpb25zKCspCj4gCj4gZGlmZiAtLWdpdCBhL2FyY2gvYXJtL3hlbi9tbS5jIGIv YXJjaC9hcm0veGVuL21tLmMKPiBpbmRleCBmZjgxMmEyLi5kYzgzYTM1IDEwMDY0NAo+IC0tLSBh L2FyY2gvYXJtL3hlbi9tbS5jCj4gKysrIGIvYXJjaC9hcm0veGVuL21tLmMKPiBAQCAtMTc2LDYg KzE3NiwxNiBAQCBzdGF0aWMgaW50IHhlbl9zd2lvdGxiX2RtYV9tbWFwKHN0cnVjdCBkZXZpY2Ug KmRldiwgc3RydWN0IHZtX2FyZWFfc3RydWN0ICp2bWEsCj4gIAlyZXR1cm4gZG1hX2NvbW1vbl9t bWFwKGRldiwgdm1hLCBjcHVfYWRkciwgZG1hX2FkZHIsIHNpemUpOwo+ICB9CgpBcyBmb3IgdGhl IG90aGVyIHBhdGNoLCBJIHdvdWxkIG1vdmUgeGVuX3N3aW90bGJfZ2V0X3NndGFibGUgdG8KZHJp dmVycy94ZW4vc3dpb3RsYi14ZW4uYywgaWYgS29ucmFkIGFncmVlcy4KCgo+ICtzdGF0aWMgaW50 IHhlbl9zd2lvdGxiX2dldF9zZ3RhYmxlKHN0cnVjdCBkZXZpY2UgKmRldiwgc3RydWN0IHNnX3Rh YmxlICpzZ3QsCj4gKwkJCQkgdm9pZCAqY3B1X2FkZHIsIGRtYV9hZGRyX3QgaGFuZGxlLCBzaXpl X3Qgc2l6ZSwKPiArCQkJCSB1bnNpZ25lZCBsb25nIGF0dHJzKQo+ICt7Cj4gKwlpZiAoX19nZW5l cmljX2RtYV9vcHMoZGV2KS0+Z2V0X3NndGFibGUpCj4gKwkJcmV0dXJuIF9fZ2VuZXJpY19kbWFf b3BzKGRldiktPmdldF9zZ3RhYmxlKGRldiwgc2d0LCBjcHVfYWRkciwgaGFuZGxlLAo+ICsJCQkJ CQkJCSBzaXplLCBhdHRycyk7Cj4gKwlyZXR1cm4gZG1hX2NvbW1vbl9nZXRfc2d0YWJsZShkZXYs IHNndCwgY3B1X2FkZHIsIGhhbmRsZSwgc2l6ZSk7Cj4gK30KPiArCgpfX2dlbmVyaWNfZG1hX29w cyhkZXYpLT5nZXRfc2d0YWJsZSBvbiBBUk0gaXMgaW1wbGVtZW50ZWQgYnkKYXJtX2RtYV9nZXRf c2d0YWJsZSwgd2hpY2ggZG9lc24ndCB3b3JrIG9uIGZvcmVpZ24gcGFnZXMgKHBhZ2VzIGZvcgp3 aGljaCBiZm4gIT0gcGZuKS4KCklmIGdldF9zZ3RhYmxlIGlzIGd1YXJhbnRlZWQgdG8gYmUgYWx3 YXlzIGNhbGxlZCBwYXNzaW5nIHJlZmVyZW5jZXMgdG8KcGFnZXMgcHJldmlvdXNseSBhbGxvY2F0 ZWQgd2l0aCBkbWFfYWxsb2NfY29oZXJlbnQsIHRoZW4gd2UgZG9uJ3QgaGF2ZQphbnkgaXNzdWVz LCBiZWNhdXNlIHRob3NlIGNhbid0IGJlIGZvcmVpZ24gcGFnZXMuIEkgc3VnZ2VzdCB3ZSBhZGQg YW4KaW4tY29kZSBjb21tZW50IHRvIGV4cGxhaW4gd2h5IHRoaXMgaXMgc2FmZSwgYXMgZm9yIHRo ZSBwcmV2aW91cyBwYXRjaC4KSSB0aGluayB0aGlzIGlzIHRoZSBjYXNlLCBidXQgSSBhbSBub3Qg MTAwJSBzdXJlLgoKT24gdGhlIG90aGVyIGhhbmQsIGlmIHRoaXMgZnVuY3Rpb24gY2FuIGJlIGNh bGxlZCBwYXNzaW5nIGFzIHBhcmFtZXRlcnMKY3B1X2FkZHIgYW5kIGhhbmRsZSB0aGF0IGNvdWxk IHBvdGVudGlhbGx5IHJlZmVyIHRvIGEgZm9yZWlnbiBwYWdlLCB0aGVuCndlIGhhdmUgYSBwcm9i bGVtLiBPbiBBUk0sIHZpcnRfdG9fcGh5cyBkb2Vzbid0IHdvcmsgb24gc29tZSBwYWdlcywgaW4K ZmFjdCB0aGF0IGlzIHRoZSByZWFzb24gd2h5IEFSTSBoYXMgaXRzIG93biBzZXBhcmF0ZSBnZXRf c2d0YWJsZQppbXBsZW1lbnRhdGlvbiAoYXJtX2RtYV9nZXRfc2d0YWJsZSkuIEJ1dCB3aXRoIFhl biBmb3JlaWduIHBhZ2VzLApkbWFfdG9fcGZuIGRvZXNuJ3Qgd29yayBlaXRoZXIsIGJlY2F1c2Ug d2UgaGF2ZSBubyB3YXkgb2YgZmluZGluZyBvdXQKdGhlIHBmbiBhZGRyZXNzIGNvcnJlc3BvbmRp bmcgdG8gdGhlIG1mbiBvZiB0aGUgZm9yZWlnbiBwYWdlLiBCb3RoCmFybV9kbWFfZ2V0X3NndGFi bGUgYW5kIGRtYV9jb21tb25fZ2V0X3NndGFibGUgd291bGRuJ3Qgd29yay4gSSBoYXZlIG5vCnNv bHV0aW9uIHRvIHRoaXMgcHJvYmxlbSwgYnV0IG1heWJlIHdlIGNvdWxkIGFkZCBhIGNoZWNrIGxp a2UgdGhlCmZvbGxvd2luZyAoYWxzbyB0byB0aGUgcHJldmlvdXMgcGF0Y2g/KS4gSSBoYXZlbid0 IHRlc3RlZCBpdCwgYnV0IEkKdGhpbmsgaXQgc2hvdWxkIHdvcmsgYXMgbG9uZyBhcyBwYWdlX2lz X3JhbSBpcyByZXR1cm5zIHRoZSBjb3JyZWN0IHZhbHVlCmZvciB0aGUgaGFuZGxlIHBhcmFtZXRl ci4KClNpZ25lZC1vZmYtYnk6IFN0ZWZhbm8gU3RhYmVsbGluaSA8c3N0YWJlbGxpbmlAa2VybmVs Lm9yZz4KCmRpZmYgLS1naXQgYS9hcmNoL2FybS94ZW4vbW0uYyBiL2FyY2gvYXJtL3hlbi9tbS5j CmluZGV4IGRjODNhMzUuLmNkMDQ0MWMgMTAwNjQ0Ci0tLSBhL2FyY2gvYXJtL3hlbi9tbS5jCisr KyBiL2FyY2gvYXJtL3hlbi9tbS5jCkBAIC0xOCw2ICsxOCw3IEBACiAjaW5jbHVkZSA8eGVuL3Bh Z2UuaD4KICNpbmNsdWRlIDx4ZW4vc3dpb3RsYi14ZW4uaD4KIAorI2luY2x1ZGUgPGFzbS9kbWEt bWFwcGluZy5oPgogI2luY2x1ZGUgPGFzbS9jYWNoZWZsdXNoLmg+CiAjaW5jbHVkZSA8YXNtL3hl bi9oeXBlcmNhbGwuaD4KICNpbmNsdWRlIDxhc20veGVuL2ludGVyZmFjZS5oPgpAQCAtMTgwLDkg KzE4MSwxOCBAQCBzdGF0aWMgaW50IHhlbl9zd2lvdGxiX2dldF9zZ3RhYmxlKHN0cnVjdCBkZXZp Y2UgKmRldiwgc3RydWN0IHNnX3RhYmxlICpzZ3QsCiAJCQkJIHZvaWQgKmNwdV9hZGRyLCBkbWFf YWRkcl90IGhhbmRsZSwgc2l6ZV90IHNpemUsCiAJCQkJIHVuc2lnbmVkIGxvbmcgYXR0cnMpCiB7 Ci0JaWYgKF9fZ2VuZXJpY19kbWFfb3BzKGRldiktPmdldF9zZ3RhYmxlKQorCisJaWYgKF9fZ2Vu ZXJpY19kbWFfb3BzKGRldiktPmdldF9zZ3RhYmxlKSB7CisJCS8qIFdlIGNhbid0IGhhbmRsZSBm b3JlaWduIHBhZ2VzIGhlcmUuICovCisjaWZkZWYgQ09ORklHX0FSTQorCQl1bnNpZ25lZCBsb25n IGJmbiA9IGRtYV90b19wZm4oZGV2LCBoYW5kbGUpOworI2Vsc2UKKwkJdW5zaWduZWQgbG9uZyBi Zm4gPSBoYW5kbGUgPj4gUEFHRV9TSElGVDsKKyNlbmRpZgorCQlCVUdfT04gKCFwYWdlX2lzX3Jh bShiZm4pKTsKIAkJcmV0dXJuIF9fZ2VuZXJpY19kbWFfb3BzKGRldiktPmdldF9zZ3RhYmxlKGRl diwgc2d0LCBjcHVfYWRkciwgaGFuZGxlLAogCQkJCQkJCQkgc2l6ZSwgYXR0cnMpOworCX0KIAly ZXR1cm4gZG1hX2NvbW1vbl9nZXRfc2d0YWJsZShkZXYsIHNndCwgY3B1X2FkZHIsIGhhbmRsZSwg c2l6ZSk7CiB9CiAKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cHM6 Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=