From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?Q?Christian_K=c3=b6nig?= Subject: Re: [PATCH v2 1/3] drm/prime: Iterate SG DMA addresses separately Date: Tue, 17 Apr 2018 18:29:38 +0200 Message-ID: <7552feb9-a512-eaee-103c-5f2367fcd9dd@gmail.com> References: Reply-To: christian.koenig@amd.com Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Robin Murphy , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: okaya@codeaurora.org, alexander.deucher@amd.com, christian.koenig@amd.com List-Id: amd-gfx.lists.freedesktop.org QW0gMTcuMDQuMjAxOCB1bSAxNzo1OCBzY2hyaWViIFJvYmluIE11cnBoeToKPiBGb3IgZG1hX21h cF9zZygpLCBETUEgQVBJIGltcGxlbWVudGF0aW9ucyBhcmUgZnJlZSB0byBtZXJnZSBjb25zZWN1 dGl2ZQo+IHNlZ21lbnRzIGludG8gYSBzaW5nbGUgRE1BIG1hcHBpbmcgaWYgY29uZGl0aW9ucyBh cmUgc3VpdGFibGUsIHRodXMgdGhlCj4gcmVzdWx0aW5nIERNQSBhZGRyZXNzZXMgd2hpY2ggZHJt X3ByaW1lX3NnX3RvX3BhZ2VfYWRkcl9hcnJheXMoKQo+IGl0ZXJhdGVzIG1heSBiZSBwYWNrZWQg aW50byBmZXdlciBlbnRyaWVzIHRoYW4gdHRtLT5zZy0+bmVudHMgaW1wbGllcy4KPgo+IFRoZSBj dXJyZW50IGltcGxlbWVudGF0aW9uIGRvZXMgbm90IGFjY291bnQgZm9yIHRoaXMsIG1lYW5pbmcg dGhhdCBpdHMKPiBjYWxsZXJzIGVpdGhlciBoYXZlIHRvIHJlamVjdCB0aGUgMCA8IGNvdW50IDwg bmVudHMgY2FzZSBvciByaXNrIGdldHRpbmcKPiBib2d1cyBETUEgYWRkcmVzc2VzIGJleW9uZCB0 aGUgZmlyc3Qgc2VnbWVudC4gRm9ydHVuYXRlbHkgdGhpcyBpcyBxdWl0ZQo+IGVhc3kgdG8gaGFu ZGxlIHdpdGhvdXQgaGF2aW5nIHRvIHJlamlnIHN0cnVjdHVyZXMgdG8gYWxzbyBzdG9yZSB0aGUK PiBtYXBwZWQgY291bnQsIHNpbmNlIHRoZSB0b3RhbCBETUEgbGVuZ3RoIHNob3VsZCBzdGlsbCBi ZSBlcXVhbCB0byB0aGUKPiB0b3RhbCBidWZmZXIgbGVuZ3RoLiBBbGwgd2UgbmVlZCBpcyBhIHNl Y29uZCBzY2F0dGVybGlzdCBjdXJzb3IgdG8KPiBpdGVyYXRlIHRocm91Z2ggdGhlIERNQSBhZGRy ZXNzZXMgaW5kZXBlbmRlbnRseSBvZiB0aGUgcGFnZSBhZGRyZXNzZXMuCj4KPiBTaWduZWQtb2Zm LWJ5OiBSb2JpbiBNdXJwaHkgPHJvYmluLm11cnBoeUBhcm0uY29tPgoKUmV2aWV3ZWQtYnk6IENo cmlzdGlhbiBLw7ZuaWcgPGNocmlzdGlhbi5rb2VuaWdAYW1kLmNvbT4gZm9yIHRoZSB3aG9sZSAK c2VyaWVzLgoKPiAtLS0KPgo+IHYyOiBSZW1lbWJlciB0byBpdGVyYXRlIGRtYV9sZW4gY29ycmVj dGx5IGFzIHdlbGwuCj4KPiAgIGRyaXZlcnMvZ3B1L2RybS9kcm1fcHJpbWUuYyB8IDE1ICsrKysr KysrKysrKy0tLQo+ICAgMSBmaWxlIGNoYW5nZWQsIDEyIGluc2VydGlvbnMoKyksIDMgZGVsZXRp b25zKC0pCj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2RybV9wcmltZS5jIGIvZHJp dmVycy9ncHUvZHJtL2RybV9wcmltZS5jCj4gaW5kZXggNzg1NmE5YjNmOGE4Li5iOGNhMDZlYTdk ODAgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2RybV9wcmltZS5jCj4gKysrIGIvZHJp dmVycy9ncHUvZHJtL2RybV9wcmltZS5jCj4gQEAgLTkzMywxNiArOTMzLDE4IEBAIGludCBkcm1f cHJpbWVfc2dfdG9fcGFnZV9hZGRyX2FycmF5cyhzdHJ1Y3Qgc2dfdGFibGUgKnNndCwgc3RydWN0 IHBhZ2UgKipwYWdlcywKPiAgIAkJCQkgICAgIGRtYV9hZGRyX3QgKmFkZHJzLCBpbnQgbWF4X2Vu dHJpZXMpCj4gICB7Cj4gICAJdW5zaWduZWQgY291bnQ7Cj4gLQlzdHJ1Y3Qgc2NhdHRlcmxpc3Qg KnNnOwo+ICsJc3RydWN0IHNjYXR0ZXJsaXN0ICpzZywgKmRtYV9zZzsKPiAgIAlzdHJ1Y3QgcGFn ZSAqcGFnZTsKPiAtCXUzMiBsZW4sIGluZGV4Owo+ICsJdTMyIGxlbiwgZG1hX2xlbiwgaW5kZXg7 Cj4gICAJZG1hX2FkZHJfdCBhZGRyOwo+ICAgCj4gICAJaW5kZXggPSAwOwo+ICsJZG1hX3NnID0g c2d0LT5zZ2w7Cj4gKwlkbWFfbGVuID0gc2dfZG1hX2xlbihkbWFfc2cpOwo+ICsJYWRkciA9IHNn X2RtYV9hZGRyZXNzKGRtYV9zZyk7Cj4gICAJZm9yX2VhY2hfc2coc2d0LT5zZ2wsIHNnLCBzZ3Qt Pm5lbnRzLCBjb3VudCkgewo+ICAgCQlsZW4gPSBzZy0+bGVuZ3RoOwo+ICAgCQlwYWdlID0gc2df cGFnZShzZyk7Cj4gLQkJYWRkciA9IHNnX2RtYV9hZGRyZXNzKHNnKTsKPiAgIAo+ICAgCQl3aGls ZSAobGVuID4gMCkgewo+ICAgCQkJaWYgKFdBUk5fT04oaW5kZXggPj0gbWF4X2VudHJpZXMpKQo+ IEBAIC05NTUsOCArOTU3LDE1IEBAIGludCBkcm1fcHJpbWVfc2dfdG9fcGFnZV9hZGRyX2FycmF5 cyhzdHJ1Y3Qgc2dfdGFibGUgKnNndCwgc3RydWN0IHBhZ2UgKipwYWdlcywKPiAgIAkJCXBhZ2Ur KzsKPiAgIAkJCWFkZHIgKz0gUEFHRV9TSVpFOwo+ICAgCQkJbGVuIC09IFBBR0VfU0laRTsKPiAr CQkJZG1hX2xlbiAtPSBQQUdFX1NJWkU7Cj4gICAJCQlpbmRleCsrOwo+ICAgCQl9Cj4gKwo+ICsJ CWlmIChkbWFfbGVuID09IDApIHsKPiArCQkJZG1hX3NnID0gc2dfbmV4dChkbWFfc2cpOwo+ICsJ CQlkbWFfbGVuID0gc2dfZG1hX2xlbihkbWFfc2cpOwo+ICsJCQlhZGRyID0gc2dfZG1hX2FkZHJl c3MoZG1hX3NnKTsKPiArCQl9Cj4gICAJfQo+ICAgCXJldHVybiAwOwo+ICAgfQoKX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcg bGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRl c2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg==