From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robin Murphy Subject: Re: [PATCH v3 5/7] drm/sun4i: Rely on dma interconnect for our RAM offset Date: Wed, 13 Feb 2019 16:40:11 +0000 Message-ID: <5540eb65-d33c-ddca-8636-f567e84fb24a@arm.com> References: <16cb9f67-6b10-fbc3-6222-5364e718721b@arm.com> <20190213154144.5m5qxbfh2qmzwatn@flea> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20190213154144.5m5qxbfh2qmzwatn@flea> 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: Maxime Ripard Cc: Mark Rutland , devicetree@vger.kernel.org, Yong Deng , Arnd Bergmann , Daniel Vetter , dri-devel@lists.freedesktop.org, Dave Martin , Paul Kocialkowski , Chen-Yu Tsai , Rob Herring , Thomas Petazzoni , Frank Rowand , Georgi Djakov , linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org T24gMTMvMDIvMjAxOSAxNTo0MSwgTWF4aW1lIFJpcGFyZCB3cm90ZToKPiBIaSBSb2JpbiwKPiAK PiBUaGFua3MgZm9yIHlvdXIgZmVlZGJhY2shCj4gCj4gT24gVHVlLCBGZWIgMTIsIDIwMTkgYXQg MDY6NDY6NDBQTSArMDAwMCwgUm9iaW4gTXVycGh5IHdyb3RlOgo+PiBPbiAxMS8wMi8yMDE5IDE1 OjAyLCBNYXhpbWUgUmlwYXJkIHdyb3RlOgo+Pj4gTm93IHRoYXQgd2UgY2FuIGV4cHJlc3Mgb3Vy IERNQSB0b3BvbG9neSwgcmVseSBvbiB0aG9zZSBwcm9wZXJ0eSBpbnN0ZWFkIG9mCj4+PiBoYXJk Y29kaW5nIGFuIG9mZnNldCBmcm9tIHRoZSBkbWFfYWRkcl90IHdoaWNoIHdhc24ndCByZWFsbHkg Z3JlYXQuCj4+Pgo+Pj4gV2Ugc3RpbGwgbmVlZCB0byBhZGQgc29tZSBjb2RlIHRvIGRlYWwgd2l0 aCB0aGUgb2xkIERUIHRoYXQgd291bGQgbGFjayB0aGF0Cj4+PiBwcm9wZXJ0eSwgYnV0IHdlIG1v dmUgdGhlIG9mZnNldCB0byB0aGUgRFJNIGRldmljZSBkbWFfcGZuX29mZnNldCB0byBiZQo+Pj4g YWJsZSB0byByZWx5IG9uIGp1c3QgdGhlIGRtYV9hZGRyX3QgYXNzb2NpYXRlZCB0byB0aGUgR0VN IG9iamVjdC4KPj4+Cj4+PiBBY2tlZC1ieTogRGFuaWVsIFZldHRlciA8ZGFuaWVsLnZldHRlckBm ZndsbC5jaD4KPj4+IFNpZ25lZC1vZmYtYnk6IE1heGltZSBSaXBhcmQgPG1heGltZS5yaXBhcmRA Ym9vdGxpbi5jb20+Cj4+PiAtLS0KPj4+ICAgIGRyaXZlcnMvZ3B1L2RybS9zdW40aS9zdW40aV9i YWNrZW5kLmMgfCAyOCArKysrKysrKysrKysrKysrKysrKystLS0tLS0tCj4+PiAgICAxIGZpbGUg Y2hhbmdlZCwgMjEgaW5zZXJ0aW9ucygrKSwgNyBkZWxldGlvbnMoLSkKPj4+Cj4+PiBkaWZmIC0t Z2l0IGEvZHJpdmVycy9ncHUvZHJtL3N1bjRpL3N1bjRpX2JhY2tlbmQuYyBiL2RyaXZlcnMvZ3B1 L2RybS9zdW40aS9zdW40aV9iYWNrZW5kLmMKPj4+IGluZGV4IDllOTI1NWVlNTljZC4uMTg0NmEx YjMwZmVhIDEwMDY0NAo+Pj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL3N1bjRpL3N1bjRpX2JhY2tl bmQuYwo+Pj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL3N1bjRpL3N1bjRpX2JhY2tlbmQuYwo+Pj4g QEAgLTM4MywxMyArMzgzLDYgQEAgaW50IHN1bjRpX2JhY2tlbmRfdXBkYXRlX2xheWVyX2J1ZmZl cihzdHJ1Y3Qgc3VuNGlfYmFja2VuZCAqYmFja2VuZCwKPj4+ICAgIAlwYWRkciA9IGRybV9mYl9j bWFfZ2V0X2dlbV9hZGRyKGZiLCBzdGF0ZSwgMCk7Cj4+PiAgICAJRFJNX0RFQlVHX0RSSVZFUigi U2V0dGluZyBidWZmZXIgYWRkcmVzcyB0byAlcGFkXG4iLCAmcGFkZHIpOwo+Pj4gLQkvKgo+Pj4g LQkgKiBiYWNrZW5kIERNQSBhY2Nlc3NlcyBEUkFNIGRpcmVjdGx5LCBieXBhc3NpbmcgdGhlIHN5 c3RlbQo+Pj4gLQkgKiBidXMuIEFzIHN1Y2gsIHRoZSBhZGRyZXNzIHJhbmdlIGlzIGRpZmZlcmVu dCBhbmQgdGhlIGJ1ZmZlcgo+Pj4gLQkgKiBhZGRyZXNzIG5lZWRzIHRvIGJlIGNvcnJlY3RlZC4K Pj4+IC0JICovCj4+PiAtCXBhZGRyIC09IFBIWVNfT0ZGU0VUOwo+Pj4gLQo+Pj4gICAgCWlmIChm Yi0+Zm9ybWF0LT5pc195dXYpCj4+PiAgICAJCXJldHVybiBzdW40aV9iYWNrZW5kX3VwZGF0ZV95 dXZfYnVmZmVyKGJhY2tlbmQsIGZiLCBwYWRkcik7Cj4+PiBAQCAtODM1LDYgKzgyOCwyNyBAQCBz dGF0aWMgaW50IHN1bjRpX2JhY2tlbmRfYmluZChzdHJ1Y3QgZGV2aWNlICpkZXYsIHN0cnVjdCBk ZXZpY2UgKm1hc3RlciwKPj4+ICAgIAlkZXZfc2V0X2RydmRhdGEoZGV2LCBiYWNrZW5kKTsKPj4+ ICAgIAlzcGluX2xvY2tfaW5pdCgmYmFja2VuZC0+ZnJvbnRlbmRfbG9jayk7Cj4+PiArCWlmIChv Zl9maW5kX3Byb3BlcnR5KGRldi0+b2Zfbm9kZSwgImludGVyY29ubmVjdHMiLCBOVUxMKSkgewo+ Pj4gKwkJLyoKPj4+ICsJCSAqIFRoaXMgYXNzdW1lIHdlIGhhdmUgdGhlIHNhbWUgRE1BIGNvbnN0 cmFpbnRzIGZvciBhbGwgb3VyIHRoZQo+Pj4gKwkJICogZGV2aWNlcyBpbiBvdXIgcGlwZWxpbmUg KGFsbCB0aGUgYmFja2VuZHMsIGJ1dCBhbHNvIHRoZQo+Pj4gKwkJICogZnJvbnRlbmRzKS4gVGhp cyBzb3VuZHMgYmFkLCBidXQgaXQgaGFzIGFsd2F5cyBiZWVuIHRoZSBjYXNlCj4+PiArCQkgKiBm b3IgdXMsIGFuZCBEUk0gZG9lc24ndCBkbyBwZXItZGV2aWNlIGFsbG9jYXRpb24gZWl0aGVyLCBz bwo+Pj4gKwkJICogd2Ugd291bGQgbmVlZCB0byBmaXggRFJNIGZpcnN0Li4uCj4+PiArCQkgKi8K Pj4+ICsJCXJldCA9IG9mX2RtYV9jb25maWd1cmUoZHJtLT5kZXYsIGRldi0+b2Zfbm9kZSwgdHJ1 ZSk7Cj4+Cj4+IEl0IHdvdWxkIGJlIGV2ZW4gbmljZXIgaWYgd2UgY291bGQgZW5zdXJlIHRoYXQg ZHJtLT5kZXYgb3JpZ2luYXRlcyBmcm9tIGEgRFQKPj4gbm9kZSB3aGljaCBoYXMgdGhlIGFwcHJv cHJpYXRlIGludGVyY29ubmVjdHMgcHJvcGVydHkgaXRzZWxmLCBzdWNoIHRoYXQgd2UKPj4gY2Fu IGFzc3VtZSBpdCdzIGFscmVhZHkgY29uZmlndXJlZCBjb3JyZWN0bHkuCj4gCj4gVGhlIHRoaW5n IGlzIGRybS0+ZGV2IGNvbWVzIGZyb20gYSBub2RlIGluIHRoZSBEVCB0aGF0IGlzIGEgdmlydHVh bAo+IG5vZGUsIGFuZCB0aGVyZWZvcmUgZG9lc24ndCBoYXZlIGFueSByZXNvdXJjZXMgYXR0YWNo ZWQsIHNvIEknbSBub3QKPiBzdXJlIHdlIGhhdmUgYW55IG90aGVyIHdheSwgdW5mb3J0dW5hdGVs eS4KClJpZ2h0LCBJIGFwcHJlY2lhdGUgdGhhdCBpdCBtYXkgbm90IGJlIGZlYXNpYmxlIHRvIHN3 aXp6bGUgZHJtLT5kZXYgZm9yIApvbmUgb2YgdGhlICdyZWFsJyBjb21wb25lbnQgZGV2aWNlcywg YnV0IHdoYXQgSSB3YXMgYWxzbyB0aGlua2luZyB3YXMgCnRoYXQgc2luY2UgdGhlIHZpcnR1YWwg ZGV2aWNlIG5vZGUgZWZmZWN0aXZlbHkgcmVwcmVzZW50cyB0aGUgCmFnZ3JlZ2F0aW9uIG9mIHRo ZSBvdGhlciBjb21wb25lbnQgZGV2aWNlcywgd2UgY291bGQganVzdCBzYXkgdGhhdCBpdCAKYWxz byBoYXMgdG8gaGF2ZSBpdHMgb3duIGxpbmsgdG8gdGhlIE1CVVMgaW50ZXJjb25uZWN0ICh3aXRo IHRoZSBJRCBvZiAKdGhlIHBpcGVsaW5lIGVudHJ5cG9pbnQgaXQncyBhc3NvY2lhdGVkIHdpdGgs IEkgZ3Vlc3MpLiBUaGF0IG91Z2h0IHRvIGJlIAplbm91Z2ggdG8gZ2V0IGRtYV9jb25maWd1cmUo KSB0byBkbyB0aGUgam9iLCBhbmQgaW4gZmFpcm5lc3MgaXMgbm8gCipsZXNzKiBhY2N1cmF0ZSBh IGRlc2NyaXB0aW9uIG9mIHRoZSBoYXJkd2FyZSwgZXZlbiBpZiBtaWdodCBsb29rIGEgCmxpdHRs ZSBmdW5reSB0byBzb21lLgoKUm9iaW4uCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZy ZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3Rp bmZvL2RyaS1kZXZlbA==