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,4/6] dmaengine: xilinx_dma: Freeup active list based on descriptor completion bit From: Vinod Koul Message-Id: <20180411091102.GZ6014@localhost> Date: Wed, 11 Apr 2018 14:41:03 +0530 To: Radhey Shyam Pandey Cc: dan.j.williams@intel.com, michal.simek@xilinx.com, appana.durga.rao@xilinx.com, radheys@xilinx.com, lars@metafoo.de, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org List-ID: T24gTW9uLCBBcHIgMDIsIDIwMTggYXQgMDQ6MDk6MDRQTSArMDUzMCwgUmFkaGV5IFNoeWFtIFBh bmRleSB3cm90ZToKPiBBWElETUEgSVAgc2V0cyBjb21wbGV0aW9uIGJpdCB0byAxIHdoZW4gdGhl IHRyYW5zZmVyIGlzIGNvbXBsZXRlZC4gUmVhZAo+IHRoaXMgYml0IHRvIG1vdmUgZGVzY3JpcHRv ciBmcm9tIGFjdGl2ZSBsaXN0IHRvIHRoZSBkb25lIGxpc3QuIFRoaXMgZmVhdHVyZQo+IGlzIG5l ZWRlZCB3aGVuIGludGVycnVwdCBkZWxheSB0aW1lb3V0IGFuZCBJUlFUaHJlc2hvbGQgaXMgZW5h YmxlZCBpLmUKPiBEbHlfSXJxRW4gaXMgdHJpZ2dlcmVkIHcvbyBjb21wbGV0aW5nIEludGVycnVw dCBUaHJlc2hvbGQuCj4gCj4gU2lnbmVkLW9mZi1ieTogUmFkaGV5IFNoeWFtIFBhbmRleSA8cmFk aGV5c0B4aWxpbnguY29tPgo+IC0tLQo+ICBkcml2ZXJzL2RtYS94aWxpbngveGlsaW54X2RtYS5j IHwgICAxOCArKysrKysrKysrKysrKy0tLS0KPiAgMSBmaWxlcyBjaGFuZ2VkLCAxNCBpbnNlcnRp b25zKCspLCA0IGRlbGV0aW9ucygtKQo+IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2RtYS94aWxp bngveGlsaW54X2RtYS5jIGIvZHJpdmVycy9kbWEveGlsaW54L3hpbGlueF9kbWEuYwo+IGluZGV4 IDM2ZTFhYjkuLjUxODQ2NWUgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9kbWEveGlsaW54L3hpbGlu eF9kbWEuYwo+ICsrKyBiL2RyaXZlcnMvZG1hL3hpbGlueC94aWxpbnhfZG1hLmMKPiBAQCAtMTAz LDYgKzEwMyw3IEBACj4gICNkZWZpbmUgWElMSU5YX0RNQV9QQVJLX1BUUl9SRF9SRUZfU0hJRlQJ MAo+ICAjZGVmaW5lIFhJTElOWF9ETUFfUEFSS19QVFJfUkRfUkVGX01BU0sJCUdFTk1BU0soNCwg MCkKPiAgI2RlZmluZSBYSUxJTlhfRE1BX1JFR19WRE1BX1ZFUlNJT04JCTB4MDAyYwo+ICsjZGVm aW5lIFhJTElOWF9ETUFfQ09NUF9NQVNLCQkJQklUKDMxKQo+ICAKPiAgLyogUmVnaXN0ZXIgRGly ZWN0IE1vZGUgUmVnaXN0ZXJzICovCj4gICNkZWZpbmUgWElMSU5YX0RNQV9SRUdfVlNJWkUJCQkw eDAwMDAKPiBAQCAtMTM4NywxNiArMTM4OCwyNSBAQCBzdGF0aWMgdm9pZCB4aWxpbnhfZG1hX2lz c3VlX3BlbmRpbmcoc3RydWN0IGRtYV9jaGFuICpkY2hhbikKPiAgc3RhdGljIHZvaWQgeGlsaW54 X2RtYV9jb21wbGV0ZV9kZXNjcmlwdG9yKHN0cnVjdCB4aWxpbnhfZG1hX2NoYW4gKmNoYW4pCj4g IHsKPiAgCXN0cnVjdCB4aWxpbnhfZG1hX3R4X2Rlc2NyaXB0b3IgKmRlc2MsICpuZXh0Owo+ICsJ c3RydWN0IHhpbGlueF9heGlkbWFfdHhfc2VnbWVudCAqc2VnOwo+ICAKPiAgCS8qIFRoaXMgZnVu Y3Rpb24gd2FzIGludm9rZWQgd2l0aCBsb2NrIGhlbGQgKi8KPiAgCWlmIChsaXN0X2VtcHR5KCZj aGFuLT5hY3RpdmVfbGlzdCkpCj4gIAkJcmV0dXJuOwo+ICAKPiAgCWxpc3RfZm9yX2VhY2hfZW50 cnlfc2FmZShkZXNjLCBuZXh0LCAmY2hhbi0+YWN0aXZlX2xpc3QsIG5vZGUpIHsKPiAtCQlsaXN0 X2RlbCgmZGVzYy0+bm9kZSk7Cj4gLQkJaWYgKCFkZXNjLT5jeWNsaWMpCj4gLQkJCWRtYV9jb29r aWVfY29tcGxldGUoJmRlc2MtPmFzeW5jX3R4KTsKPiAtCQlsaXN0X2FkZF90YWlsKCZkZXNjLT5u b2RlLCAmY2hhbi0+ZG9uZV9saXN0KTsKPiArCj4gKwkJc2VnID0gbGlzdF9sYXN0X2VudHJ5KCZk ZXNjLT5zZWdtZW50cywKPiArCQkJCSAgICAgIHN0cnVjdCB4aWxpbnhfYXhpZG1hX3R4X3NlZ21l bnQsIG5vZGUpOwo+ICsJCWlmICgoc2VnLT5ody5zdGF0dXMgJiBYSUxJTlhfRE1BX0NPTVBfTUFT SykgfHwKPiArCQkJKCFjaGFuLT54ZGV2LT5oYXNfYXhpZXRoX2Nvbm5lY3RlZCkpIHsKCndoeSB0 aGUgc2Vjb25kIGNhc2UgPyBUaGF0IGlzIG5vdCBleHBhbGluZWQgaW4gbG9nPwoKPiArCQkJbGlz dF9kZWwoJmRlc2MtPm5vZGUpOwo+ICsJCQlpZiAoIWRlc2MtPmN5Y2xpYykKPiArCQkJCWRtYV9j b29raWVfY29tcGxldGUoJmRlc2MtPmFzeW5jX3R4KTsKPiArCQkJbGlzdF9hZGRfdGFpbCgmZGVz Yy0+bm9kZSwgJmNoYW4tPmRvbmVfbGlzdCk7Cj4gKwkJfSBlbHNlIHsKPiArCQkJYnJlYWs7Cj4g KwkJfQo+ICAJfQo+ICB9Cj4gIAo+IC0tIAo+IDEuNy4xCj4K