From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?Q?Christian_K=c3=b6nig?= Subject: Re: [Linaro-mm-sig] [PATCH 1/5] dma-buf: add optional invalidate_mappings callback v2 Date: Wed, 21 Mar 2018 10:34:05 +0100 Message-ID: References: <20180316132049.1748-1-christian.koenig@amd.com> <20180316132049.1748-2-christian.koenig@amd.com> <152120831102.25315.4326885184264378830@mail.alporthouse.com> <21879456-db47-589c-b5e2-dfe8333d9e4c@gmail.com> <152147480241.18954.4556582215766884582@mail.alporthouse.com> <0bd85f69-c64c-70d1-a4a0-10ae0ed8b4e8@gmail.com> <19ed21a5-805d-271f-9120-49e0c00f510f@amd.com> <20180320140810.GU14155@phenom.ffwll.local> <37ba7394-2a5c-a0bc-cc51-c8a0edc2991d@gmail.com> <20180321081800.GW14155@phenom.ffwll.local> Reply-To: christian.koenig-5C7GfCeVMHo@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20180321081800.GW14155-dv86pmgwkMBes7Z6vYuT8azUEOm+Xw19@public.gmane.org> Content-Language: en-US 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: Daniel Vetter , christian.koenig-5C7GfCeVMHo@public.gmane.org Cc: "moderated list:DMA BUFFER SHARING FRAMEWORK" , Daniel Vetter , dri-devel , amd-gfx list , "open list:DMA BUFFER SHARING FRAMEWORK" QW0gMjEuMDMuMjAxOCB1bSAwOToxOCBzY2hyaWViIERhbmllbCBWZXR0ZXI6Cj4gW1NOSVBdCj4g VGhleSdyZSBib3RoIGluIGk5MTVfZ2VtX3VzZXJwdHIuYywgc29tZXdoYXQgaW50ZXJsZWF2ZWQu IFdvdWxkIGJlCj4gaW50ZXJlc3RpbmcgaWYgeW91IGNvdWxkIHNob3cgd2hhdCB5b3UgdGhpbmsg aXMgZ29pbmcgd3JvbmcgaW4gdGhlcmUKPiBjb21wYXJlZCB0byBhbWRncHVfbW4uYy4KCmk5MTUg aW1wbGVtZW50cyBvbmx5IG9uZSBjYWxsYmFjazoKPiBzdGF0aWMgY29uc3Qgc3RydWN0IG1tdV9u b3RpZmllcl9vcHMgaTkxNV9nZW1fdXNlcnB0cl9ub3RpZmllciA9IHsKPiDCoMKgwqDCoMKgwqDC oCAuaW52YWxpZGF0ZV9yYW5nZV9zdGFydCA9IAo+IGk5MTVfZ2VtX3VzZXJwdHJfbW5faW52YWxp ZGF0ZV9yYW5nZV9zdGFydCwKPiB9OwpGb3IgY29ycmVjdCBvcGVyYXRpb24geW91IGFsd2F5cyBu ZWVkIHRvIGltcGxlbWVudCBpbnZhbGlkYXRlX3JhbmdlX2VuZCAKYXMgd2VsbCBhbmQgYWRkIHNv bWUgbG9jay9jb21wbGV0aW9uIHdvcmsgT3RoZXJ3aXNlIGdldF91c2VyX3BhZ2VzKCkgY2FuIAph Z2FpbiBncmFiIHRoZSByZWZlcmVuY2UgdG8gdGhlIHdyb25nIHBhZ2UuCgpUaGUgbmV4dCBwcm9i bGVtIHNlZW1zIHRvIGJlIHRoYXQgY2FuY2VsX3VzZXJwdHIoKSBkb2Vzbid0IHByZXZlbnQgYW55 IApuZXcgY29tbWFuZCBzdWJtaXNzaW9uLiBFLmcuCj4gaTkxNV9nZW1fb2JqZWN0X3dhaXQob2Jq LCBJOTE1X1dBSVRfQUxMLCBNQVhfU0NIRURVTEVfVElNRU9VVCwgTlVMTCk7CldoYXQgcHJldmVu dHMgbmV3IGNvbW1hbmQgc3VibWlzc2lvbnMgdG8gdXNlIHRoZSBHRU0gb2JqZWN0IGRpcmVjdGx5 IAphZnRlciB5b3UgZmluaXNoZWQgd2FpdGluZyBoZXJlPwoKPiBJIGdldCBhIGZlZWxpbmcgd2Un cmUgdGFsa2luZyBwYXN0IGVhY2ggYW5vdGhlciBoZXJlLgpZZWFoLCBhZ3JlZS4gQWRkaXRpb25h bCB0byB0aGF0IEkgZG9uJ3Qga25vdyB0aGUgaTkxNSBjb2RlIHZlcnkgd2VsbC4KCj4gQ2FuIHlv dSBwZXJoYXBzIGV4cGxhaW4gd2hhdCBleGFjdGx5IHRoZSByYWNlIGlzIHlvdSdyZSBzZWVpbmc/ IFRoZSBpOTE1IHVzZXJwdHIgY29kZSBpcwo+IGZhaXJseSBjb252b2x1dGVkIGFuZCBwdXNoZXMg YSBsb3Qgb2Ygc3R1ZmYgdG8gd29ya2VycyAoYnV0IHRoZW4gc3luY3MKPiB3aXRoIHRob3NlIHdv cmtlcnMgYWdhaW4gbGF0ZXIgb24pLCBzbyBlYXNpbHkgcG9zc2libGUgeW91J3ZlIG92ZXJsb29r ZWQKPiBvbmUgb2YgdGhlc2UgbGluZXMgdGhhdCBtaWdodCBndWFyYW50ZWUgYWxyZWFkeSB3aGF0 IHlvdSB0aGluayBuZWVkcyB0byBiZQo+IGd1YXJhbnRlZWQuIFdlJ3JlIGRlZmluaXRlbHkgbm90 IGFpbWluZyB0byBhbGxvdyB1c2Vyc3BhY2UgdG8gYWxsb3cKPiB3cml0aW5nIHRvIHJhbmRvbSBw YWdlcyBhbGwgb3Zlci4KCllvdSBub3QgcmVhZC93cml0ZSB0byByYW5kb20gcGFnZXMsIHRoZXJl IHN0aWxsIGlzIGEgcmVmZXJlbmNlIHRvIHRoZSAKcGFnZS4gU28gdGhhdCB0aGUgcGFnZSBjYW4n dCBiZSByZXVzZWQgdW50aWwgeW91IGFyZSBkb25lLgoKVGhlIHByb2JsZW0gaXMgcmF0aGVyIHRo YXQgeW91IGNhbid0IGd1YXJhbnRlZSB0aGF0IHlvdSB3cml0ZSB0byB0aGUgCnBhZ2Ugd2hpY2gg aXMgbWFwcGVkIGludG8gdGhlIHByb2Nlc3MgYXQgdGhhdCBsb2NhdGlvbi4gRS5nLiB0aGUgQ1BV IGFuZCAKdGhlIEdQVSBtaWdodCBzZWUgdHdvIGRpZmZlcmVudCB0aGluZ3MuCgo+Pj4gTGVha2lu ZyB0aGUgSU9NTVUgbWFwcGluZ3Mgb3RvaCBtZWFucyByb2d1ZSB1c2Vyc3BhY2UgY291bGQgZG8g YSBidW5jaCBvZgo+Pj4gc3RyYXkgd3JpdGVzIChJIGRvbid0IHNlZSBhbnl3aGVyZSBjb2RlIGlu IGFtZGdwdV9tbi5jIHRvIHVubWFwIGF0IGxlYXN0Cj4+PiB0aGUgZ3B1IHNpZGUgUFRFcyB0byBt YWtlIHN0dWZmIGluYWNjZXNzaWJsZSkgYW5kIHdyZWFrIHRoZSBjb3JlIGtlcm5lbCdzCj4+PiBi b29rLWtlZXBpbmcuCj4+Pgo+Pj4gSW4gaTkxNSB3ZSBndWFyYW50ZWUgdGhhdCB3ZSBjYWxsIHNl dF9wYWdlX2RpcnR5L21hcmtfcGFnZV9hY2Nlc3NlZCBvbmx5Cj4+PiBhZnRlciBhbGwgdGhlIG1h cHBpbmdzIGFyZSByZWFsbHkgZ29uZSAoYm90aCBHUFUgUFRFcyBhbmQgc2cgbWFwcGluZyksCj4+ PiBndWFyYW50ZWVpbmcgdGhhdCBhbnkgc3RyYXkgd3JpdGVzIGZyb20gZWl0aGVyIHRoZSBHUFUg b3IgSU9NTVUgd2lsbAo+Pj4gcmVzdWx0IGluIGZhdWx0cyAoZXhjZXB0IGJ1Z3MgaW4gdGhlIElP TU1VLCBidXQgY2FuJ3QgaGF2ZSBpdCBhbGwsICJJT01NVQo+Pj4gYWN0dWFsbHkgd29ya3MiIGlz IGFuIGFzc3VtcHRpb24gYmVoaW5kIGRldmljZSBpc29sYXRpb24pLgo+PiBXZWxsIGV4YWN0bHkg dGhhdCdzIHRoZSBwb2ludCwgdGhlIGhhbmRsaW5nIGluIGk5MTUgbG9va3MgaW5jb3JyZWN0IHRv IG1lLgo+PiBZb3UgbmVlZCB0byBjYWxsIHNldF9wYWdlX2RpcnR5L21hcmtfcGFnZV9hY2Nlc3Nl ZCB3YXkgYmVmb3JlIHRoZSBtYXBwaW5nIGlzCj4+IGRlc3Ryb3llZC4KPj4KPj4gVG8gYmUgbW9y ZSBwcmVjaXNlIGZvciB1c2VycHRycyBpdCBtdXN0IGJlIGNhbGxlZCBmcm9tIHRoZQo+PiBpbnZh bGlkYXRlX3JhbmdlX3N0YXJ0LCBidXQgaTkxNSBzZWVtcyB0byBkZWxlZ2F0ZSBldmVyeXRoaW5n IGludG8gYQo+PiBiYWNrZ3JvdW5kIHdvcmtlciB0byBhdm9pZCB0aGUgbG9ja2luZyBwcm9ibGVt cy4KPiBZZWFoLCBhbmQgYXQgdGhlIGVuZCBvZiB0aGUgZnVuY3Rpb24gdGhlcmUncyBhIGZsdXNo X3dvcmsgdG8gbWFrZSBzdXJlIHRoZQo+IHdvcmtlciBoYXMgY2F1Z2h0IHVwLgpBaCwgeWVzIGhh dmVuJ3Qgc2VlbiB0aGF0LgoKQnV0IHRoZW4gZ3JhYmJpbmcgdGhlIG9iai0+YmFzZS5kZXYtPnN0 cnVjdF9tdXRleCBsb2NrIGluIApjYW5jZWxfdXNlcnB0cigpIGlzIHJhdGhlciBldmlsLiBZb3Ug anVzdCBzaWxlbmNlZCBsb2NrZGVwIGJlY2F1c2UgeW91IApvZmZsb2FkZWQgdGhhdCBpbnRvIGEg d29yayBpdGVtLgoKU28gbm8gbWF0dGVyIGhvdyB5b3UgcHV0IGl0IGk5MTUgaXMgY2xlYXJseSBk b2luZyBzb21ldGhpbmcgd3JvbmcgaGVyZSA6KQoKPiBJIGtub3cuIGk5MTUgZ2VtIGhhcyB0b25z IG9mIGZhbGxiYWNrcyBhbmQgcmV0cnkgbG9vcHMgKHdlIHJlc3RhcnQgdGhlCj4gZW50aXJlIENT IGlmIG5lZWRlZCksIGFuZCBpOTE1IHVzZXJwdHIgcHVzaGVzIHRoZSBlbnRpcmUgZ2V0X3VzZXJf cGFnZXMKPiBkYW5jZSBvZmYgaW50byBhIHdvcmtlciBpZiB0aGUgZmFzdHBhdGggZG9lc24ndCBz dWNjZWVkIGFuZCB3ZSBydW4gb3V0IG9mCj4gbWVtb3J5IG9yIGhpdCBjb250ZW5kZWQgbG9ja3Mu IFdlIGFsc28gaGF2ZSBvYnNjZW5lIGFtb3VudHMgb2YKPiBfX0dGUF9OT1JFVFJZIGFuZCBfX0dG UF9OT1dBUk4gYWxsIG92ZXIgdGhlIHBsYWNlIHRvIG1ha2Ugc3VyZSB0aGUgY29yZSBtbQo+IGNv ZGUgZG9lc24ndCBkbyBzb21ldGhpbmcgd2UgZG9uJ3Qgd2FudCBpdCBkbyB0byBkbyBpbiB0aGUg ZmFzdHBhdGhzCj4gKGJlY2F1c2UgdGhlcmUncyByZWFsbHkgbm8gcG9pbnQgaW4gc3BlbmRpbmcg bG90cyBvZiB0aW1lIHRyeWluZyB0byBtYWtlCj4gbWVtb3J5IGF2YWlsYWJsZSBpZiB3ZSBoYXZl IGEgc2xvd3BhdGggZmFsbGJhY2sgd2l0aCBtdWNoIGxlc3MKPiBjb25zdHJhaW50cykuCldlbGwg SSBoYXZlbid0IGF1ZGl0ZWQgdGhlIGNvZGUsIGJ1dCBJJ20gcHJldHR5IHN1cmUgdGhhdCBqdXN0 IG1pdGlnYXRlcyAKdGhlIHByb2JsZW0gYW5kIHNpbGVuY2VkIGxvY2tkZXAgaW5zdGVhZCBvZiBy ZWFsbHkgZml4aW5nIHRoZSBpc3N1ZS4KCj4gV2UncmUgYWxzbyBub3QgbGltaXRpbmcgb3Vyc2Vs dmVzIHRvIEdGUF9OT0lPLCBidXQgaW5zdGVhZCBoYXZlIGEKPiByZWN1cnNpb24gZGV0ZWN0aW9u JmhhbmRsaW5nIGluIG91ciBvd24gc2hyaW5rZXIgY2FsbGJhY2sgdG8gYXZvaWQgdGhlc2UKPiBk ZWFkbG9ja3MuCgpXaGljaCBpZiB5b3UgYXNrIG1lIGlzIGFic29sdXRlbHkgaG9ycmlibGUuIEkg bWVhbiB0aGUgY29tbWVudCBpbiAKbGludXgvbXV0ZXguaCBzdW1zIGl0IHVwIHByZXR0eSB3ZWxs Ogo+IMKgKiBUaGlzIGZ1bmN0aW9uIHNob3VsZCBub3QgYmUgdXNlZCwgX2V2ZXJfLiBJdCBpcyBw dXJlbHkgZm9yIAo+IGh5c3RlcmljYWwgR0VNCj4gwqAqIHJhaXNpbnMsIGFuZCBvbmNlIHRob3Nl IGFyZSBnb25lIHRoaXMgd2lsbCBiZSByZW1vdmVkLgoKUmVnYXJkcywKQ2hyaXN0aWFuLgpfX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwphbWQtZ2Z4IG1haWxp bmcgbGlzdAphbWQtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVk ZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2FtZC1nZngK