From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heiko Stuebner Subject: Re: [PATCH 1/2] drm/rockchip: create the fake mmap offset during gem creation Date: Tue, 10 Nov 2015 07:46:16 +0100 Message-ID: <5676968.2ELIqayQry@phil> References: <4982827.0pnZflEOSR@phil> <56418C07.60208@rock-chips.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <56418C07.60208@rock-chips.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Mark yao Cc: linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, dri-devel@lists.freedesktop.org List-Id: linux-rockchip.vger.kernel.org SGkgTWFyaywKCkFtIERpZW5zdGFnLCAxMC4gTm92ZW1iZXIgMjAxNSwgMTQ6MTc6NDMgc2Nocmll YiBNYXJrIHlhbzoKPiBIaSBIZWlrbwo+ICAgICAgIEkgZG9uJ3QgdGhpbmsgdGhpcyBwYXRjaCBp cyBuZWVkZWQgZm9yIHJvY2tjaGlwIGRybSwgc2luY2UgCj4gcm9ja2NoaXAgZHJtIG9ubHkgdXNl IGttcy4KPiBJIHNhdyB0aGUgZGlzY3Vzc2lvbiBhYm91dCAoImRybS9leHlub3M6IGNyZWF0ZSBh IGZha2UgbW1hcCBvZmZzZXQgd2l0aCAKPiBnZW0gY3JlYXRpb24iKSwKPiBJbmtpIHNhaWQgdGhh dDogIlRoaXMgcGF0Y2ggbWFrZXMgZHJtX2dlbV9jcmVhdGVfbW1hcF9vZmZzZXQgdG8gYmUgCj4g Y2FsbGVkIGV2ZW4gaW4gY2FzZSBvZgo+IG5vdCB1c2luZyBkdW1iKiBpbnRlcmZhY2VzLiBJLmUu LCBleHlub3NfZHJtX2dlbV9jcmVhdGVfaW9jdGwgLT4gCj4gZXh5bm9zX2RybV9nZW1fbW1hcCIK PiAKPiBTbyBJIHRoaW5rIHRoaXMgcGF0Y2ggZG9lc24ndCBtYWtlIHNlbnNlIGZvciByb2NrY2hp cCBkcm0uCgpvayA6LSkgLiBJJ20gbm90IHRoYXQga25vd2xlZGdhYmxlIHdoZW4gaXQgY29tZXMg dG8gZHJtIGFuZCBqdXN0IGZvdW5kIHRoYXQgCnNpbWlsYXIgY2hhbmdlIGluIGV4eW5vcyB3aGls ZSBzZWFyY2hpbmcgZm9yIHRoZSBkbWEgaXNzdWUuCgpTbyB3ZSBjYW4gZHJvcCB0aGlzIHBhdGNo IGFuZCB5b3UgY291bGQganVzdCBtZXJnZSBwYXRjaDIgYXMgd2VsbCBhcwoKCVtSRVNFTkQgUEFU Q0hdIGRybS9yb2NrY2hpcDogdm9wOiBDb3JyZWN0IGVuYWJsZWQgY2xvY2tzIGR1cmluZyBzZXR1 cAoKZnJvbSBTam9lcmQgYW5kIHNlbmQgdGhlc2UgdHdvIHRvIERhdmUgYXMgZml4ZXMgZm9yIDQu ND8KCgpUaGFua3MKSGVpa28KCj4gCj4gCj4gT24gMjAxNeW5tDEx5pyIMTDml6UgMDM6NTAsIEhl aWtvIFN0dWVibmVyIHdyb3RlOgo+ID4gU2ltaWxhcmx5IHRvIHRoZSBlcXVpdmFsZW50IGV4eW5v cy1maXggaW4gY29tbWl0IDQ4Y2Y1M2Y0MzQzYQo+ID4gKCJkcm0vZXh5bm9zOiBjcmVhdGUgYSBm YWtlIG1tYXAgb2Zmc2V0IHdpdGggZ2VtIGNyZWF0aW9uIikgdGhlIHJvY2tjaGlwCj4gPiBkcm0g ZHJpdmVyIGFsc28gY2FsbHMgdGhlIGRybV9nZW1fY3JlYXRlX21tYXBfb2Zmc2V0IGZha2Utb2Zm c2V0IGNyZWF0aW9uCj4gPiBvbiBldmVyeSBpbnZvY2F0aW9uIG9mIHJvY2tjaGlwX2dlbV9kdW1i X21hcF9vZmZzZXQuCj4gPgo+ID4gTW92ZSB0aGF0IHRvIHRoZSBjcmVhdGlvbiBvZiB0aGUgZ2Vt IHRvIG9ubHkgY3JlYXRlIHRoYXQgb2Zmc2V0IG9uY2UuCj4gPgo+ID4gU2lnbmVkLW9mZi1ieTog SGVpa28gU3R1ZWJuZXIgPGhlaWtvQHNudGVjaC5kZT4KPiA+IC0tLQo+ID4gICBkcml2ZXJzL2dw dS9kcm0vcm9ja2NoaXAvcm9ja2NoaXBfZHJtX2dlbS5jIHwgMTIgKysrKysrLS0tLS0tCj4gPiAg IDEgZmlsZSBjaGFuZ2VkLCA2IGluc2VydGlvbnMoKyksIDYgZGVsZXRpb25zKC0pCj4gPgo+ID4g ZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9yb2NrY2hpcC9yb2NrY2hpcF9kcm1fZ2VtLmMg CmIvZHJpdmVycy9ncHUvZHJtL3JvY2tjaGlwL3JvY2tjaGlwX2RybV9nZW0uYwo+ID4gaW5kZXgg NGFiMmYyMC4uZTUwZDExMyAxMDA2NDQKPiA+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9yb2NrY2hp cC9yb2NrY2hpcF9kcm1fZ2VtLmMKPiA+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9yb2NrY2hpcC9y b2NrY2hpcF9kcm1fZ2VtLmMKPiA+IEBAIC0xMjYsOCArMTI2LDE0IEBAIHN0cnVjdCByb2NrY2hp cF9nZW1fb2JqZWN0ICoKPiA+ICAgCWlmIChyZXQpCj4gPiAgIAkJZ290byBlcnJfZnJlZV9ya19v Ymo7Cj4gPiAgIAo+ID4gKwlyZXQgPSBkcm1fZ2VtX2NyZWF0ZV9tbWFwX29mZnNldChvYmopOwo+ ID4gKwlpZiAocmV0KQo+ID4gKwkJZ290byBlcnJfZnJlZV9idWY7Cj4gPiArCj4gPiAgIAlyZXR1 cm4gcmtfb2JqOwo+ID4gICAKPiA+ICtlcnJfZnJlZV9idWY6Cj4gPiArCXJvY2tjaGlwX2dlbV9m cmVlX2J1Zihya19vYmopOwo+ID4gICBlcnJfZnJlZV9ya19vYmo6Cj4gPiAgIAlrZnJlZShya19v YmopOwo+ID4gICAJcmV0dXJuIEVSUl9QVFIocmV0KTsKPiA+IEBAIC0xOTYsNyArMjAyLDYgQEAg aW50IHJvY2tjaGlwX2dlbV9kdW1iX21hcF9vZmZzZXQoc3RydWN0IGRybV9maWxlIAoqZmlsZV9w cml2LAo+ID4gICAJCQkJIHVpbnQ2NF90ICpvZmZzZXQpCj4gPiAgIHsKPiA+ICAgCXN0cnVjdCBk cm1fZ2VtX29iamVjdCAqb2JqOwo+ID4gLQlpbnQgcmV0Owo+ID4gICAKPiA+ICAgCW9iaiA9IGRy bV9nZW1fb2JqZWN0X2xvb2t1cChkZXYsIGZpbGVfcHJpdiwgaGFuZGxlKTsKPiA+ICAgCWlmICgh b2JqKSB7Cj4gPiBAQCAtMjA0LDE0ICsyMDksOSBAQCBpbnQgcm9ja2NoaXBfZ2VtX2R1bWJfbWFw X29mZnNldChzdHJ1Y3QgZHJtX2ZpbGUgCipmaWxlX3ByaXYsCj4gPiAgIAkJcmV0dXJuIC1FSU5W QUw7Cj4gPiAgIAl9Cj4gPiAgIAo+ID4gLQlyZXQgPSBkcm1fZ2VtX2NyZWF0ZV9tbWFwX29mZnNl dChvYmopOwo+ID4gLQlpZiAocmV0KQo+ID4gLQkJZ290byBvdXQ7Cj4gPiAtCj4gPiAgIAkqb2Zm c2V0ID0gZHJtX3ZtYV9ub2RlX29mZnNldF9hZGRyKCZvYmotPnZtYV9ub2RlKTsKPiA+ICAgCURS TV9ERUJVR19LTVMoIm9mZnNldCA9IDB4JWxseFxuIiwgKm9mZnNldCk7Cj4gPiAgIAo+ID4gLW91 dDoKPiA+ICAgCWRybV9nZW1fb2JqZWN0X3VucmVmZXJlbmNlX3VubG9ja2VkKG9iaik7Cj4gPiAg IAo+ID4gICAJcmV0dXJuIDA7Cj4gCj4gCj4gCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0 cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2RyaS1kZXZlbAo=