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: [4/6] dma: tegra: add accurate reporting of dma state From: Dmitry Osipenko Message-Id: <85a8afa6-8b0d-dcc2-3254-a79cf90e90df@gmail.com> Date: Fri, 22 Feb 2019 21:10:40 +0300 To: Ben Dooks Cc: dan.j.williams@intel.com, vkoul@kernel.org, ldewangan@nvidia.com, dmaengine@vger.kernel.org, linux-tegra@vger.kernel.org List-ID: MjIuMDIuMjAxOSAyMDoyMywgQmVuIERvb2tzINC/0LjRiNC10YI6Cj4gT24gMjEvMDIvMjAxOSAx MzowMiwgRG1pdHJ5IE9zaXBlbmtvIHdyb3RlOgo+PiAyMS4wMi4yMDE5IDEzOjA2LCBCZW4gRG9v a3Mg0L/QuNGI0LXRgjoKPj4+IE9uIDIxLzAyLzIwMTkgMDA6NDEsIERtaXRyeSBPc2lwZW5rbyB3 cm90ZToKPj4+PiAzMS4xMC4yMDE4IDE5OjAzLCBCZW4gRG9va3Mg0L/QuNGI0LXRgjoKPj4+Pj4g VGhlIHR4X3N0YXR1cyBjYWxsYmFjayBkb2VzIG5vdCByZXBvcnQgdGhlIHN0YXRlIG9mIHRoZSB0 cmFuc2Zlcgo+Pj4+PiBiZXlvbmQgY29tcGxldGUgc2VnbWVudHMuIFRoaXMgY2F1c2VzIHByb2Js ZW1zIHdpdGggdXNlcnMgc3VjaCBhcwo+Pj4+PiBBTFNBIHdoZW4gYXBwbGljYXRpb25zIHdhbnQg dG8ga25vdyBhY2N1cmF0ZWx5IGhvdyBtdWNoIGRhdGEgaGFzCj4+Pj4+IGJlZW4gbW92ZWQuCj4+ Pj4+Cj4+Pj4+IFRoaXMgcGF0Y2ggYWRkZXMgYSBmdW5jdGlvbiB0ZWdyYV9kbWFfdXBkYXRlX3Jl c2lkdWFsKCkgdG8gcXVlcnkKPj4+Pj4gdGhlIGhhcmR3YXJlIGFuZCBtb2RpZnkgdGhlIHJlc2lk dWFsIGluZm9ybWF0aW9uIGFjY29yZGlubHkuIEl0Cj4+Pj4+IHRha2VzIGludG8gYWNjb3VudCBh bnkgaGFyZHdhcmUgaXNzdWVzIHdoZW4gdHJ5aW5nIHRvIHJlYWQgdGhlCj4+Pj4+IHN0YXRlLCBz dWNoIGFzIGRlbGF5cyBiZXR3ZWVuIGZpbmlzaGluZyBhIGJ1ZmZlciBhbmQgc2lnbmFsbGluZwo+ Pj4+PiB0aGUgaW50ZXJydXB0Lgo+Pj4+Pgo+Pj4+PiBTaWduZWQtb2ZmLWJ5OiBCZW4gRG9va3Mg PGJlbi5kb29rc0Bjb2RldGhpbmsuY28udWs+Cj4+Pj4KPj4+PiBIZWxsbyBCZW4sCj4+Pj4KPj4+ PiBEbyB5b3UgaGF2ZSBhbnkgcGxhbnMgdG8gc3VibWl0IGEgbmV3IHZlcnNpb24gb2YgdGhpcyBw YXRjaD8gSXQncyByZWFsbHkgdXNlZnVsIGFuZCBmaXhlcyBhIHJlYWwgcHJvYmxlbSB3aXRoIHRo ZSBhdWRpbyBwbGF5YmFjay4gSSBjb3VsZCBoZWxwIHdpdGggZmluYWxpemluZyB0aGUgcGF0Y2gg YW5kIGNvdWxkIHN1Ym1pdCBpdCBmb3IgeW91IGlmIHlvdSBoYXBwZW5lZCB0byBsb3N0IHRoZSBp bnRlcmVzdC4KPj4+Cj4+PiBQZXJzb25hbGx5IEkgdGhpbmsgdGhlIG9yaWdpbmFsIHZlcnNpb24g d2FzIGZpbmUuIEl0IGhhcyBiZWVuIHRlc3RlZAo+Pj4gYW5kIHJldHVybnMgZmFpcmx5IHF1aWNr bHkgKEkgYW0gbm90IGEgZmFuIG9mIGp1c3QgYWRkaW5nIG1vcmUgZGVsYXkgaW4pCj4+Pgo+Pj4g TXkgbm90ZXMgc2F5IHRoZSBjb25kaXRpb24gZG9lc24ndCBsYXN0IGZvciBsb25nIGFuZCB0aGUg bG9vcCB0ZW5kcwo+Pj4gdG8gdGVybWluYXRlIHdpdGhpbiAyIHJ1bnMuCj4+Pgo+Pgo+PiBPa2F5 LCBzbyBhcmUgeW91IGdvaW5nIHRvIHJlLXNlbmQgdGhlIHBhdGNoPyBXZSBjYW4gYmFjayB0byB0 aGUgcmV2aWV3IGFmdGVyLCB5b3UgbmVlZCBhdCBsZWFzdCB0byByZS1zZW5kIGJlY2F1c2UgdGhp cyBzZXJpZXMgaGFzIGJlZW4gb3V0ZGF0ZWQuIEFsc28gcGxlYXNlIHRha2UgYSBsb29rIGFuZCBm ZWVsIGZyZWUgdG8gdXNlIGFzLWlzIHRoZSByZWR1Y2VkIHZhcmlhbnQgb2YgeW91cnMgcGF0Y2gg dGhhdCBJIHdhcyBjYXJyeWluZyBhbmQgdGVzdGluZyBmb3IgbW9udGhzIG5vdyBbMF0sIGl0IHdv cmtzIGdyZWF0Lgo+Pgo+PiBbMF0gaHR0cHM6Ly9naXRodWIuY29tL2dyYXRlLWRyaXZlci9saW51 eC9jb21taXQvYWI4YTY3YTZmNDcxODVmMjY1ZjE2NzQ5YjU1ZGYyMTRhYWFlZmFkNAo+Pgo+IAo+ IEkgY2FuIHRyeSByZWJhc2luZywgYnV0IEkgaGF2ZSBub3QgZ290IGEgbG90IG9mIHRpbWUgdG8g ZG8gYW55IHRlc3RpbmcKPiBhdCB0aGUgbW9tZW50LiBJIGFncmVlIEkgc2hvdWxkIGhhdmUgcmVt ZW1iZXJlZCB0byBjaGFzZSB0aGlzIHN0dWZmIHVwCj4gZWFybGllci4KCk5vIHByb2JsZW1zLCB0 aGFuayB5b3UuIEknbGwgaGVscCB3aXRoIHRoZSB0ZXN0aW5nLiBBbmQgSSBjb3VsZCByZWJhc2Ug dGhlIHBhdGNoIGFuZCBzZW5kIGl0IG91dCBmb3IgeW91IGlmIHdpbGwgYmUgbmVlZGVkLCBwbGVh c2UganVzdCBsZXQgbWUga25vdyBpZiB5b3UncmUgb2theSB3aXRoIGl0Lgo=