From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laurent Pinchart Subject: Re: [PATCH 2/6] drm: Introduce DRM_MODE_DUMB_KERNEL_MAP flag Date: Wed, 23 Oct 2019 17:28:44 +0300 Message-ID: <20191023142844.GC1904@pendragon.ideasonboard.com> References: <20191021214550.1461-1-robh@kernel.org> <20191021214550.1461-3-robh@kernel.org> <20191022111443.GE4756@pendragon.ideasonboard.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Rob Herring Cc: Neil Armstrong , David Airlie , Liviu Dudau , dri-devel , Yannick Fertre , Kevin Hilman , Xinwei Kong , Xinliang Liu , "open list:ARM/Rockchip SoC..." , Chen-Yu Tsai , Kieran Bingham , "James (Qian) Wang" , Alexandre Torgue , Chen Feng , "moderated list:ARM/Mediatek SoC support" , Matthias Brugger , Sean Paul , "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" , Philippe Cornu List-Id: linux-rockchip.vger.kernel.org SGkgUm9iLAoKT24gVHVlLCBPY3QgMjIsIDIwMTkgYXQgMDc6NDI6MDZBTSAtMDUwMCwgUm9iIEhl cnJpbmcgd3JvdGU6Cj4gT24gVHVlLCBPY3QgMjIsIDIwMTkgYXQgNjoxNCBBTSBMYXVyZW50IFBp bmNoYXJ0IHdyb3RlOgo+ID4gT24gTW9uLCBPY3QgMjEsIDIwMTkgYXQgMDQ6NDU6NDZQTSAtMDUw MCwgUm9iIEhlcnJpbmcgd3JvdGU6Cj4gPiA+IEludHJvZHVjZSBhIG5ldyBmbGFnLCBEUk1fTU9E RV9EVU1CX0tFUk5FTF9NQVAsIGZvciBzdHJ1Y3QKPiA+ID4gZHJtX21vZGVfY3JlYXRlX2R1bWIu IFRoaXMgZmxhZyBpcyBmb3IgaW50ZXJuYWwga2VybmVsIHVzZSB0byBpbmRpY2F0ZQo+ID4gPiBp ZiBkdW1iIGJ1ZmZlciBhbGxvY2F0aW9uIG5lZWRzIGEga2VybmVsIG1hcHBpbmcuIFRoaXMgaXMg bmVlZGVkIG9ubHkgZm9yCj4gPiA+IENNQSB3aGVyZSBjcmVhdGluZyBhIGtlcm5lbCBtYXBwaW5n IG9yIG5vdCBoYXMgdG8gYmUgZGVjaWRlZCBhdCBhbGxvY2F0aW9uCj4gPiA+IHRpbWUgYmVjYXVz ZSBjcmVhdGluZyBhIG1hcHBpbmcgb24gZGVtYW5kICh3aXRoIHZtYXAoKSkgaXMgbm90IGd1YXJh bnRlZWQKPiA+ID4gdG8gd29yay4gU2V2ZXJhbCBkcml2ZXJzIGFyZSB1c2luZyBDTUEsIGJ1dCBu b3QgdGhlIENNQSBoZWxwZXJzIGJlY2F1c2UKPiA+ID4gdGhleSBkaXN0aW5ndWlzaCBiZXR3ZWVu IGtlcm5lbCBhbmQgdXNlcnNwYWNlIGFsbG9jYXRpb25zIHRvIGNyZWF0ZSBhCj4gPiA+IGtlcm5l bCBtYXBwaW5nIG9yIG5vdC4KPiA+ID4KPiA+ID4gVXBkYXRlIHRoZSBjYWxsZXJzIG9mIGRybV9t b2RlX2R1bWJfY3JlYXRlKCkgdG8gc2V0Cj4gPiA+IGRybV9tb2RlX2R1bWJfY3JlYXRlLmZsYWdz IHRvIGFwcHJvcHJpYXRlIGRlZmF1bHRzLiBDdXJyZW50bHksIGZsYWdzIGNhbgo+ID4gPiBiZSBz ZXQgdG8gYW55dGhpbmcgYnkgdXNlcnNwYWNlLCBidXQgaXMgdW51c2VkIHdpdGhpbiB0aGUga2Vy bmVsLiBMZXQncwo+ID4gPiBmb3JjZSBmbGFncyB0byB6ZXJvIChubyBrZXJuZWwgbWFwcGluZykg Zm9yIHVzZXJzcGFjZSBjYWxsZXJzIGJ5IGRlZmF1bHQuCj4gPiA+IEZvciBpbiBrZXJuZWwgY2xp ZW50cywgc2V0IERSTV9NT0RFX0RVTUJfS0VSTkVMX01BUCBieSBkZWZhdWx0LiBEcml2ZXJzCj4g PiA+IGNhbiBvdmVycmlkZSB0aGlzIGFzIG5lZWRlZC4KPiA+ID4KPiA+ID4gQ2M6IERhdmlkIEFp cmxpZSA8YWlybGllZEBsaW51eC5pZT4KPiA+ID4gQ2M6IERhbmllbCBWZXR0ZXIgPGRhbmllbEBm ZndsbC5jaD4KPiA+ID4gQ2M6IE1hYXJ0ZW4gTGFua2hvcnN0IDxtYWFydGVuLmxhbmtob3JzdEBs aW51eC5pbnRlbC5jb20+Cj4gPiA+IENjOiBNYXhpbWUgUmlwYXJkIDxtcmlwYXJkQGtlcm5lbC5v cmc+Cj4gPiA+IENjOiBTZWFuIFBhdWwgPHNlYW5AcG9vcmx5LnJ1bj4KPiA+ID4gU2lnbmVkLW9m Zi1ieTogUm9iIEhlcnJpbmcgPHJvYmhAa2VybmVsLm9yZz4KPiA+ID4gLS0tCj4gPiA+ICBkcml2 ZXJzL2dwdS9kcm0vZHJtX2NsaWVudC5jICAgICAgIHwgMSArCj4gPiA+ICBkcml2ZXJzL2dwdS9k cm0vZHJtX2R1bWJfYnVmZmVycy5jIHwgNSArKysrLQo+ID4gPiAgaW5jbHVkZS91YXBpL2RybS9k cm1fbW9kZS5oICAgICAgICB8IDIgKysKPiA+ID4gIDMgZmlsZXMgY2hhbmdlZCwgNyBpbnNlcnRp b25zKCspLCAxIGRlbGV0aW9uKC0pCj4gPiA+Cj4gPiA+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dw dS9kcm0vZHJtX2NsaWVudC5jIGIvZHJpdmVycy9ncHUvZHJtL2RybV9jbGllbnQuYwo+ID4gPiBp bmRleCBkOWEyZTM2OTU1MjUuLmRiZmM4MDYxYjM5MiAxMDA2NDQKPiA+ID4gLS0tIGEvZHJpdmVy cy9ncHUvZHJtL2RybV9jbGllbnQuYwo+ID4gPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vZHJtX2Ns aWVudC5jCj4gPiA+IEBAIC0yNjQsNiArMjY0LDcgQEAgZHJtX2NsaWVudF9idWZmZXJfY3JlYXRl KHN0cnVjdCBkcm1fY2xpZW50X2RldiAqY2xpZW50LCB1MzIgd2lkdGgsIHUzMiBoZWlnaHQsIHUK PiA+ID4gICAgICAgZHVtYl9hcmdzLndpZHRoID0gd2lkdGg7Cj4gPiA+ICAgICAgIGR1bWJfYXJn cy5oZWlnaHQgPSBoZWlnaHQ7Cj4gPiA+ICAgICAgIGR1bWJfYXJncy5icHAgPSBpbmZvLT5jcHBb MF0gKiA4Owo+ID4gPiArICAgICBkdW1iX2FyZ3MuZmxhZ3MgPSBEUk1fTU9ERV9EVU1CX0tFUk5F TF9NQVA7Cj4gPiA+ICAgICAgIHJldCA9IGRybV9tb2RlX2NyZWF0ZV9kdW1iKGRldiwgJmR1bWJf YXJncywgY2xpZW50LT5maWxlKTsKPiA+ID4gICAgICAgaWYgKHJldCkKPiA+ID4gICAgICAgICAg ICAgICBnb3RvIGVycl9kZWxldGU7Cj4gPiA+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0v ZHJtX2R1bWJfYnVmZmVycy5jIGIvZHJpdmVycy9ncHUvZHJtL2RybV9kdW1iX2J1ZmZlcnMuYwo+ ID4gPiBpbmRleCBkMThhNzQwZmUwZjEuLjc0YTEzZjE0YzE3MyAxMDA2NDQKPiA+ID4gLS0tIGEv ZHJpdmVycy9ncHUvZHJtL2RybV9kdW1iX2J1ZmZlcnMuYwo+ID4gPiArKysgYi9kcml2ZXJzL2dw dS9kcm0vZHJtX2R1bWJfYnVmZmVycy5jCj4gPiA+IEBAIC05Nyw3ICs5NywxMCBAQCBpbnQgZHJt X21vZGVfY3JlYXRlX2R1bWIoc3RydWN0IGRybV9kZXZpY2UgKmRldiwKPiA+ID4gIGludCBkcm1f bW9kZV9jcmVhdGVfZHVtYl9pb2N0bChzdHJ1Y3QgZHJtX2RldmljZSAqZGV2LAo+ID4gPiAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgIHZvaWQgKmRhdGEsIHN0cnVjdCBkcm1fZmlsZSAqZmls ZV9wcml2KQo+ID4gPiAgewo+ID4gPiAtICAgICByZXR1cm4gZHJtX21vZGVfY3JlYXRlX2R1bWIo ZGV2LCBkYXRhLCBmaWxlX3ByaXYpOwo+ID4gPiArICAgICBzdHJ1Y3QgZHJtX21vZGVfY3JlYXRl X2R1bWIgKmFyZ3MgPSBkYXRhOwo+ID4gPiArCj4gPiA+ICsgICAgIGFyZ3MtPmZsYWdzID0gMDsK PiA+Cj4gPiBJIHdvdWxkIHByZWZlciByZXR1cm5pbmcgYW4gZXJyb3IgaWYgZmxhZ3MgaXMgc2V0 IHRvIGEgbm9uLXplcm8gdmFsdWUsCj4gPiB0byBjYXRjaCB1c2Vyc3BhY2UgZXJyb3JzIGVhcmx5 LCBidXQgSSdtIGFsc28gd29ycmllZCBpdCB3b3VsZCBicmVhawo+ID4gZXhpc3RpbmcgdXNlcnNw YWNlIGJ5IHVuY292ZXJpbmcgZXhpc3RpbmcgYnVncy4gU3RpbGwsIGlmIHdlIGxhdGVyIGFkZAo+ ID4gZmxhZ3MgdGhhdCB1c2Vyc3BhY2UgY2FuIHNldCwgdGhvc2UgZXhpc3RpbmcgYnVncyB3aWxs IGJlIHRyaWdnZXJlZCwgc28KPiA+IHdlJ2xsIGhhdmUgdG8gZGVhbCB3aXRoIHRoZW0gYW55d2F5 LCBhbmQgd2UgY291bGQgYWxyZWFkeSBnaXZlIGl0IGEgdHJ5Lgo+IAo+IEkgd291bGQgbGlrZSB0 aGF0IHRvbywgYnV0IHRoZSBjb21tZW50IGp1c3QgYWJvdmUgdGhpcyBjb2RlIHRlbGxzIG1lCj4g dGhhdCdzIGxpa2VseSB0byBicmVhayB0aGluZ3M6Cj4gCj4gICAgICAgICAvKgo+ICAgICAgICAg ICogaGFuZGxlLCBwaXRjaCBhbmQgc2l6ZSBhcmUgb3V0cHV0IHBhcmFtZXRlcnMuIFplcm8gdGhl bSBvdXQgdG8KPiAgICAgICAgICAqIHByZXZlbnQgZHJpdmVycyBmcm9tIGFjY2lkZW50YWxseSB1 c2luZyB1bmluaXRpYWxpemVkIGRhdGEuIFNpbmNlCj4gICAgICAgICAgKiBub3QgYWxsIGV4aXN0 aW5nIHVzZXJzcGFjZSBpcyBjbGVhcmluZyB0aGVzZSBmaWVsZHMgcHJvcGVybHkgd2UKPiAgICAg ICAgICAqIGNhbm5vdCByZWplY3QgSU9DVEwgd2l0aCBnYXJiYWdlIGluIHRoZW0uCj4gICAgICAg ICAgKi8KPiAKPiBNYXliZSB1c2Vyc3BhY2UgZG9lcyBjb3JyZWN0bHkgemVybyBvdXQgaW5wdXQg cGFyYW1zLgoKQnV0IGlmIHRoYXQgaG9sZHMgdHJ1ZSwgaXQgbWVhbnMgdGhhdCB3ZSB3aWxsIG5l dmVyIGJlIGFibGUgdG8gYWRkCnVzZXJzcGFjZSBmbGFncywgYXMgZG9pbmcgc28gY291bGQgYnJl YWsgYXBwbGljYXRpb25zIGZvciB0aGUgc2FtZQpyZWFzb24uIFRoZSBmbGFnIGZpZWxkIHNob3Vs ZCB0aHVzIGJlIG1hcmtlZCBhcyBkZXByZWNhdGVkIGZvciB1c2Vyc3BhY2UKdXNhZ2UuIEkgd29u ZGVyIGhvdyBiaWcgdGhlIHJpc2sgaXMuCgotLSAKUmVnYXJkcywKCkxhdXJlbnQgUGluY2hhcnQK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVs