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: [5/8,v5] dma: k3dma: Add support for dma-channel-mask From: Vinod Koul Message-Id: <20190204085953.GL4296@vkoul-mobl> Date: Mon, 4 Feb 2019 14:29:53 +0530 To: John Stultz Cc: lkml , Li Yu , Dan Williams , Tanglei Han , Zhuangluan Su , Ryan Grachek , Manivannan Sadhasivam , Guodong Xu , dmaengine@vger.kernel.org List-ID: T24gMjQtMDEtMTksIDEyOjI0LCBKb2huIFN0dWx0eiB3cm90ZToKPiBGcm9tOiBMaSBZdSA8bGl5 dTY1QGhpc2lsaWNvbi5jb20+Cj4gCj4gQWRkIGRtYS1jaGFubmVsLW1hc2sgYXMgYSBwcm9wZXJ0 eSBmb3IgazNkbWEsIGl0IGRlZmluZXMKPiBhdmFpbGFibGUgZG1hIGNoYW5uZWxzIHdoaWNoIGEg bm9uLXNlY3VyZSBtb2RlIGRyaXZlciBjYW4gdXNlLgo+IAo+IE9uZSBzYW1wbGUgdXNhZ2Ugb2Yg dGhpcyBpcyBpbiBIaTM2NjAgU29DLiBETUEgY2hhbm5lbCAwIGlzCj4gcmVzZXJ2ZWQgdG8gbHBt Mywgd2hpY2ggaXMgYSBjb3Byb2Nlc3NvciBmb3IgcG93ZXIgbWFuYWdlbWVudC4gU28KPiBhcyBh IHJlc3VsdCwgYW55IHJlcXVlc3QgaW4ga2VybmVsICh3aGljaCBydW5zIG9uIG1haW4gcHJvY2Vz c29yCj4gYW5kIGluIG5vbi1zZWN1cmUgbW9kZSkgc2hvdWxkIHN0YXJ0IGZyb20gYXQgbGVhc3Qg Y2hhbm5lbCAxLgo+IAo+IENjOiBEYW4gV2lsbGlhbXMgPGRhbi5qLndpbGxpYW1zQGludGVsLmNv bT4KPiBDYzogVmlub2QgS291bCA8dmtvdWxAa2VybmVsLm9yZz4KPiBDYzogVGFuZ2xlaSBIYW4g PGhhbnRhbmdsZWlAaHVhd2VpLmNvbT4KPiBDYzogWmh1YW5nbHVhbiBTdSA8c3V6aHVhbmdsdWFu QGhpc2lsaWNvbi5jb20+Cj4gQ2M6IFJ5YW4gR3JhY2hlayA8cnlhbkBlZGl0ZWQudXM+Cj4gQ2M6 IE1hbml2YW5uYW4gU2FkaGFzaXZhbSA8bWFuaXZhbm5hbi5zYWRoYXNpdmFtQGxpbmFyby5vcmc+ Cj4gQ2M6IEd1b2RvbmcgWHUgPGd1b2RvbmcueHVAbGluYXJvLm9yZz4KPiBDYzogZG1hZW5naW5l QHZnZXIua2VybmVsLm9yZwo+IFNpZ25lZC1vZmYtYnk6IExpIFl1IDxsaXl1NjVAaGlzaWxpY29u LmNvbT4KPiBbanN0dWx0ejogUmV3b3JrZWQgdG8gdXNlIGEgY2hhbm5lbCBtYXNrXQo+IFNpZ25l ZC1vZmYtYnk6IEpvaG4gU3R1bHR6IDxqb2huLnN0dWx0ekBsaW5hcm8ub3JnPgo+IC0tLQo+IHYz OiBSZW5hbWUgdG8gaGlzaS1kbWEtYXZhaWwtY2hhbgo+IHY0OiBSZW5hbWUgdG8gZG1hLWNoYW5u ZWwtbWFzawo+IHY1OiBVc2UgQklUKGkpIGluc3RlYWQgb2YgKDE8PGkpCj4gLS0tCj4gIGRyaXZl cnMvZG1hL2szZG1hLmMgfCAyMCArKysrKysrKysrKysrKysrKysrLQo+ICAxIGZpbGUgY2hhbmdl ZCwgMTkgaW5zZXJ0aW9ucygrKSwgMSBkZWxldGlvbigtKQo+IAo+IGRpZmYgLS1naXQgYS9kcml2 ZXJzL2RtYS9rM2RtYS5jIGIvZHJpdmVycy9kbWEvazNkbWEuYwo+IGluZGV4IGU0MTVjODUuLjI5 NGVjNjQgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9kbWEvazNkbWEuYwo+ICsrKyBiL2RyaXZlcnMv ZG1hL2szZG1hLmMKPiBAQCAtMTExLDYgKzExMSw3IEBAIHN0cnVjdCBrM19kbWFfZGV2IHsKPiAg CXN0cnVjdCBkbWFfcG9vbAkJKnBvb2w7Cj4gIAl1MzIJCQlkbWFfY2hhbm5lbHM7Cj4gIAl1MzIJ CQlkbWFfcmVxdWVzdHM7Cj4gKwl1MzIJCQlkbWFfY2hhbm5lbF9tYXNrOwo+ICAJdW5zaWduZWQg aW50CQlpcnE7Cj4gIH07Cj4gIAo+IEBAIC0zMTksNiArMzIwLDkgQEAgc3RhdGljIHZvaWQgazNf ZG1hX3Rhc2tsZXQodW5zaWduZWQgbG9uZyBhcmcpCj4gIAkvKiBjaGVjayBuZXcgY2hhbm5lbCBy ZXF1ZXN0IGluIGQtPmNoYW5fcGVuZGluZyAqLwo+ICAJc3Bpbl9sb2NrX2lycSgmZC0+bG9jayk7 Cj4gIAlmb3IgKHBjaCA9IDA7IHBjaCA8IGQtPmRtYV9jaGFubmVsczsgcGNoKyspIHsKPiArCQlp ZiAoIShkLT5kbWFfY2hhbm5lbF9tYXNrICYgKDE8PHBjaCkpKQoKc3BhY2VzIGFyb3VuZCA8PAoK PiArCQkJY29udGludWU7Cj4gKwo+ICAJCXAgPSAmZC0+cGh5W3BjaF07Cj4gIAo+ICAJCWlmIChw LT52Y2hhbiA9PSBOVUxMICYmICFsaXN0X2VtcHR5KCZkLT5jaGFuX3BlbmRpbmcpKSB7Cj4gQEAg LTMzNiw2ICszNDAsOSBAQCBzdGF0aWMgdm9pZCBrM19kbWFfdGFza2xldCh1bnNpZ25lZCBsb25n IGFyZykKPiAgCXNwaW5fdW5sb2NrX2lycSgmZC0+bG9jayk7Cj4gIAo+ICAJZm9yIChwY2ggPSAw OyBwY2ggPCBkLT5kbWFfY2hhbm5lbHM7IHBjaCsrKSB7Cj4gKwkJaWYgKCEoZC0+ZG1hX2NoYW5u ZWxfbWFzayAmICgxPDxwY2gpKSkKCmFuZCBoZXJlIDooCgo+ICsJCQljb250aW51ZTsKPiArCj4g IAkJaWYgKHBjaF9hbGxvYyAmICgxIDw8IHBjaCkpIHsKPiAgCQkJcCA9ICZkLT5waHlbcGNoXTsK PiAgCQkJYyA9IHAtPnZjaGFuOwo+IEBAIC04NTYsNiArODYzLDEzIEBAIHN0YXRpYyBpbnQgazNf ZG1hX3Byb2JlKHN0cnVjdCBwbGF0Zm9ybV9kZXZpY2UgKm9wKQo+ICAJCQkJImRtYS1jaGFubmVs cyIsICZkLT5kbWFfY2hhbm5lbHMpOwo+ICAJCW9mX3Byb3BlcnR5X3JlYWRfdTMyKCgmb3AtPmRl diktPm9mX25vZGUsCj4gIAkJCQkiZG1hLXJlcXVlc3RzIiwgJmQtPmRtYV9yZXF1ZXN0cyk7Cj4g KwkJcmV0ID0gb2ZfcHJvcGVydHlfcmVhZF91MzIoKCZvcC0+ZGV2KS0+b2Zfbm9kZSwKPiArCQkJ CSJkbWEtY2hhbm5lbC1tYXNrIiwgJmQtPmRtYV9jaGFubmVsX21hc2spOwo+ICsJCWlmIChyZXQp IHsKPiArCQkJZGV2X3dhcm4oJm9wLT5kZXYsCj4gKwkJCQkgImRtYS1jaGFubmVsLW1hc2sgZG9l c24ndCBleGlzdCwgY29uc2lkZXJpbmcgYWxsIGFzIGF2YWlsYWJsZS5cbiIpOwo+ICsJCQlkLT5k bWFfY2hhbm5lbF9tYXNrID0gKHUzMil+MFVMOwo+ICsJCX0KPiAgCX0KPiAgCj4gIAlpZiAoIShz b2NfZGF0YS0+ZmxhZ3MgJiBLM19GTEFHX05PQ0xLKSkgewo+IEBAIC04ODcsOCArOTAxLDEyIEBA IHN0YXRpYyBpbnQgazNfZG1hX3Byb2JlKHN0cnVjdCBwbGF0Zm9ybV9kZXZpY2UgKm9wKQo+ICAJ CXJldHVybiAtRU5PTUVNOwo+ICAKPiAgCWZvciAoaSA9IDA7IGkgPCBkLT5kbWFfY2hhbm5lbHM7 IGkrKykgewo+IC0JCXN0cnVjdCBrM19kbWFfcGh5ICpwID0gJmQtPnBoeVtpXTsKPiArCQlzdHJ1 Y3QgazNfZG1hX3BoeSAqcDsKPiArCj4gKwkJaWYgKCEoZC0+ZG1hX2NoYW5uZWxfbWFzayAmIEJJ VChpKSkpCj4gKwkJCWNvbnRpbnVlOwo+ICAKPiArCQlwID0gJmQtPnBoeVtpXTsKPiAgCQlwLT5p ZHggPSBpOwo+ICAJCXAtPmJhc2UgPSBkLT5iYXNlICsgaSAqIDB4NDA7Cj4gIAl9Cj4gLS0gCj4g Mi43LjQK