From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [RFC,v3,5/7] dmaengine: Add Synopsys eDMA IP PCIe glue-logic From: Andy Shevchenko Message-Id: <20190115054358.GB9170@smile.fi.intel.com> Date: Tue, 15 Jan 2019 07:43:58 +0200 To: Gustavo Pimentel Cc: "linux-pci@vger.kernel.org" , "dmaengine@vger.kernel.org" , Vinod Koul , Dan Williams , Eugeniy Paltsev , Russell King , Niklas Cassel , Lorenzo Pieralisi , Joao Pinto , Jose Abreu , Luis Oliveira , Vitor Soares , Nelson Costa , Pedro Sousa List-ID: T24gTW9uLCBKYW4gMTQsIDIwMTkgYXQgMTE6Mzg6MDJBTSArMDAwMCwgR3VzdGF2byBQaW1lbnRl bCB3cm90ZToKPiBPbiAxMS8wMS8yMDE5IDE5OjQ3LCBBbmR5IFNoZXZjaGVua28gd3JvdGU6Cj4g PiBPbiBGcmksIEphbiAxMSwgMjAxOSBhdCAwNzozMzo0MVBNICswMTAwLCBHdXN0YXZvIFBpbWVu dGVsIHdyb3RlOgoKPiA+PiArc3RhdGljIGJvb2wgZGlzYWJsZV9tc2l4Owo+ID4+ICttb2R1bGVf cGFyYW0oZGlzYWJsZV9tc2l4LCBib29sLCAwNjQ0KTsKPiA+PiArTU9EVUxFX1BBUk1fREVTQyhk aXNhYmxlX21zaXgsICJEaXNhYmxlIE1TSS1YIGludGVycnVwdHMiKTsKPiA+IAo+ID4gV2h5PyEK PiA+IFdlIGFyZSBubyBhbGxvdyBuZXcgbW9kdWxlIHBhcmFtZXRlcnMgd2l0aG91dCB2ZXJ5IHN0 cm9uZyBhcmd1bWVudHMuCj4gCj4gU2luY2UgdGhpcyBpcyBhIHJlZmVyZW5jZSBkcml2ZXIgYW5k IG1pZ2h0IGJlIHVzZWQgdG8gdGVzdCBjdXN0b21pemVkIEhXCj4gc29sdXRpb25zLCBJIGFkZGVk IHRoaXMgcGFyYW1ldGVyIHRvIGFsbG93IHRoZSBwb3NzaWJpbGl0eSB0byB0ZXN0IHRoZSBzb2x1 dGlvbgo+IGZvcmNpbmcgdGhlIE1TSSBmZWF0dXJlIGJpbmRpbmcuIFRoaXMgaXMgcmVxdWlyZWQg c3BlY2lhbGx5IGlmIHdobyB3aWxsIHRlc3QKPiB0aGlzIHNvbHV0aW9uIGhhcyBhIFJvb3QgQ29t cGxleCB3aXRoIGJvdGggZmVhdHVyZXMgYXZhaWxhYmxlIChNU0kgYW5kIE1TSS1YKSwKPiBiZWNh dXNlIHRoZSBLZXJuZWwgd2lsbCBnaXZlIGFsd2F5cyBwcmVmZXJlbmNlIHRvIE1TSS1YIGJpbmRp bmcgKGFzc3VtaW5nIHRoYXQKPiB0aGUgRVAgaGFzIGFsc28gYm90aCBmZWF0dXJlcyBhdmFpbGFi bGUpLgoKWWVzLCB5b3UgbWF5IGRvIGl0IGZvciB0ZXN0aW5nIHB1cnBvc2VzLCBidXQgaXQgZG9l c24ndCBmaXQgdGhlIGtlcm5lbCBzdGFuZGFyZHMuCgo+ID4+ICsJaWYgKCFwZGF0YSkgewo+ID4+ ICsJCWRldl9lcnIoZGV2LCAiJXMgbWlzc2luZyBkYXRhIHN0cnVjdHVyZVxuIiwgcGNpX25hbWUo cGRldikpOwo+ID4+ICsJCXJldHVybiAtRUZBVUxUOwo+ID4+ICsJfQo+ID4gCj4gPiBVc2VsZXNz IGNoZWNrLgo+IAo+IFdoeT8gSXQncyBqdXN0IGEgcHJlY2F1dGlvbiwgaXNuJ3QgaXQgYSBnb29k IHByYWN0aWNlIGFsd2F5cyB0byB0aGluayBvZiB0aGUKPiB3b3JzdCBjYXNlPwoKWW91IGp1c3Qg Y2FuIHB1dCBhbiBpbXBsaWNpdCByZXF1aXJlbWVudCBvZiBwZGF0YSByYXRoZXIgdGhhbiBkb2lu ZyB0aGlzCnVzZWxlc3MgY2hlY2suIEkgZG9uJ3QgYmVsaWV2ZSBpdCB3b3VsZCBtYWtlIHNlbnNl IHRvIGhhdmUgTlVMTCBwZGF0YSBmb3IgdGhlCmRyaXZlciBzaW5jZSBpdCB3b3VsZG4ndCBiZSBm dW5jdGlvbmFsIGFueWhvdy4KCj4gPj4gKwkvKiBNYXBwaW5nIFBDSSBCQVIgcmVnaW9ucyAqLwo+ ID4+ICsJZXJyID0gcGNpbV9pb21hcF9yZWdpb25zKHBkZXYsIEJJVChwZGF0YS0+cmdfYmFyKSB8 Cj4gPj4gKwkJCQkgICAgICAgQklUKHBkYXRhLT5sbF9iYXIpIHwKPiA+PiArCQkJCSAgICAgICBC SVQocGRhdGEtPmR0X2JhciksCj4gPj4gKwkJCQkgcGNpX25hbWUocGRldikpOwo+ID4+ICsJaWYg KGVycikgewoKPiA+PiArCQlyZXR1cm4gZXJyOwo+ID4+ICsJfQoKPiA+PiArCWlmICghcGNpbV9p b21hcF90YWJsZShwZGV2KSkKPiA+PiArCQlyZXR1cm4gLUVBQ0NFUzsKPiA+IAo+ID4gTmV2ZXIg aGFwcGVuIGNvbmRpdGlvbi4gVGh1cyB1c2VsZXNzLgo+IAo+IHBjaW1faW9tYXBfdGFibGUoKSBj YW4gcmV0dXJuIE5VTEwgaW4gY2FzZSBvZiBhbGxvY2F0aW9uIGZhaWx1cmUuIEJlc2lkZXMgdGhh dCwKPiBpc24ndCBpdCBhIGdvb2QgcHJhY3RpY2UgYWx3YXlzIHRvIHRoaW5rIG9mIHRoZSB3b3Jz dCBjYXNlPwoKTm8sIGl0IGNhbid0IGluIHRoZSBjb25kaXRpb25zIHlvdXIgaGF2ZSBpbiB0aGUg Y29kZS4gU2VlIGFib3ZlIHRoZSBsaW5lcyBJIGxlZnQuCklmIHBjaW1faW9tYXBfcmVnaW9ucygp IHN1Y2Nlc3NmdWxseSBmaW5pc2hlZC4uLgoKPiA+PiArCWRldl9pbmZvKGRldiwgIkRlc2lnbldh cmUgZURNQSBQQ0llIGRyaXZlciBsb2FkZWQgY29tcGxldGVseVxuIik7Cj4gPiAKPiA+IFVzZWxl c3MuCj4gCj4gSXQncyBoZWxwZnVsIGZvciBicmluZyB1cCwgSSBjYW4gcGFzcyBpdCB0byBkYmcu CgpJdCBqdXN0IHNob3dzIHRoYXQgc29tZW9uZSBkaWRuJ3QgdXNlIGV4aXN0aW5nIHRvb2xzIGFu ZCBmZWF0dXJlcy4gVGhpcyBtZXNzYWdlIGFuZCBzaW1pbGFyIGFyZSB1c2VsZXNzLgpIaW50OiBp bml0Y2FsbF9kZWJ1Zy4KCj4gPj4gKwlkZXZfaW5mbyhkZXYsICJEZXNpZ25XYXJlIGVETUEgUENJ ZSBkcml2ZXIgdW5sb2FkZWQgY29tcGxldGVseVxuIik7Cj4gPiAKPiA+IERpdHRvLgo+IAo+IEl0 J3MgaGVscGZ1bCBmb3IgYnJpbmcgdXAsIEkgY2FuIHBhc3MgaXQgdG8gZGJnLgoKRGl0dG8uCg==