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,v3] dma: k3dma: Add support for hisi-dma-avail-chan From: John Stultz Message-Id: <1547141652-8660-6-git-send-email-john.stultz@linaro.org> Date: Thu, 10 Jan 2019 09:34:09 -0800 To: lkml Cc: Dan Williams , Vinod Koul , Tanglei Han , Zhuangluan Su , Ryan Grachek , Manivannan Sadhasivam , Guodong Xu , dmaengine@vger.kernel.org, Li Yu , John Stultz List-ID: RnJvbTogTGkgWXUgPGxpeXU2NUBoaXNpbGljb24uY29tPgoKQWRkIGhpc2ktZG1hLWF2YWlsLWNo YW4gYXMgYSBwcm9wZXJ0eSBmb3IgazNkbWEsIGl0IGRlZmluZXMKYXZhaWxhYmxlIGRtYSBjaGFu bmVscyB3aGljaCBhIG5vbi1zZWN1cmUgbW9kZSBkcml2ZXIgY2FuIHVzZS4KCk9uZSBzYW1wbGUg dXNhZ2Ugb2YgdGhpcyBpcyBpbiBIaTM2NjAgU29DLiBETUEgY2hhbm5lbCAwIGlzCnJlc2VydmVk IHRvIGxwbTMsIHdoaWNoIGlzIGEgY29wcm9jZXNzb3IgZm9yIHBvd2VyIG1hbmFnZW1lbnQuIFNv CmFzIGEgcmVzdWx0LCBhbnkgcmVxdWVzdCBpbiBrZXJuZWwgKHdoaWNoIHJ1bnMgb24gbWFpbiBw cm9jZXNzb3IKYW5kIGluIG5vbi1zZWN1cmUgbW9kZSkgc2hvdWxkIHN0YXJ0IGZyb20gYXQgbGVh c3QgY2hhbm5lbCAxLgoKQ2M6IERhbiBXaWxsaWFtcyA8ZGFuLmoud2lsbGlhbXNAaW50ZWwuY29t PgpDYzogVmlub2QgS291bCA8dmtvdWxAa2VybmVsLm9yZz4KQ2M6IFRhbmdsZWkgSGFuIDxoYW50 YW5nbGVpQGh1YXdlaS5jb20+CkNjOiBaaHVhbmdsdWFuIFN1IDxzdXpodWFuZ2x1YW5AaGlzaWxp Y29uLmNvbT4KQ2M6IFJ5YW4gR3JhY2hlayA8cnlhbkBlZGl0ZWQudXM+CkNjOiBNYW5pdmFubmFu IFNhZGhhc2l2YW0gPG1hbml2YW5uYW4uc2FkaGFzaXZhbUBsaW5hcm8ub3JnPgpDYzogR3VvZG9u ZyBYdSA8Z3VvZG9uZy54dUBsaW5hcm8ub3JnPgpDYzogZG1hZW5naW5lQHZnZXIua2VybmVsLm9y ZwpTaWduZWQtb2ZmLWJ5OiBMaSBZdSA8bGl5dTY1QGhpc2lsaWNvbi5jb20+Cltqc3R1bHR6OiBS ZXdvcmtlZCB0byB1c2UgYSBjaGFubmVsIG1hc2tdClNpZ25lZC1vZmYtYnk6IEpvaG4gU3R1bHR6 IDxqb2huLnN0dWx0ekBsaW5hcm8ub3JnPgotLS0KdjM6IFJlbmFtZSB0byBoaXNpLWRtYS1hdmFp bC1jaGFuCi0tLQogZHJpdmVycy9kbWEvazNkbWEuYyB8IDIwICsrKysrKysrKysrKysrKysrKyst CiAxIGZpbGUgY2hhbmdlZCwgMTkgaW5zZXJ0aW9ucygrKSwgMSBkZWxldGlvbigtKQoKZGlmZiAt LWdpdCBhL2RyaXZlcnMvZG1hL2szZG1hLmMgYi9kcml2ZXJzL2RtYS9rM2RtYS5jCmluZGV4IGIy MDYwYmYuLmY0MDAxY2EgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZG1hL2szZG1hLmMKKysrIGIvZHJp dmVycy9kbWEvazNkbWEuYwpAQCAtMTExLDYgKzExMSw3IEBAIHN0cnVjdCBrM19kbWFfZGV2IHsK IAlzdHJ1Y3QgZG1hX3Bvb2wJCSpwb29sOwogCXUzMgkJCWRtYV9jaGFubmVsczsKIAl1MzIJCQlk bWFfcmVxdWVzdHM7CisJdTMyCQkJZG1hX2F2YWlsX2NoYW47CiAJdW5zaWduZWQgaW50CQlpcnE7 CiB9OwogCkBAIC0zMTgsNiArMzE5LDkgQEAgc3RhdGljIHZvaWQgazNfZG1hX3Rhc2tsZXQodW5z aWduZWQgbG9uZyBhcmcpCiAJLyogY2hlY2sgbmV3IGNoYW5uZWwgcmVxdWVzdCBpbiBkLT5jaGFu X3BlbmRpbmcgKi8KIAlzcGluX2xvY2tfaXJxKCZkLT5sb2NrKTsKIAlmb3IgKHBjaCA9IDA7IHBj aCA8IGQtPmRtYV9jaGFubmVsczsgcGNoKyspIHsKKwkJaWYgKCEoZC0+ZG1hX2F2YWlsX2NoYW4g JiAoMTw8cGNoKSkpCisJCQljb250aW51ZTsKKwogCQlwID0gJmQtPnBoeVtwY2hdOwogCiAJCWlm IChwLT52Y2hhbiA9PSBOVUxMICYmICFsaXN0X2VtcHR5KCZkLT5jaGFuX3BlbmRpbmcpKSB7CkBA IC0zMzUsNiArMzM5LDkgQEAgc3RhdGljIHZvaWQgazNfZG1hX3Rhc2tsZXQodW5zaWduZWQgbG9u ZyBhcmcpCiAJc3Bpbl91bmxvY2tfaXJxKCZkLT5sb2NrKTsKIAogCWZvciAocGNoID0gMDsgcGNo IDwgZC0+ZG1hX2NoYW5uZWxzOyBwY2grKykgeworCQlpZiAoIShkLT5kbWFfYXZhaWxfY2hhbiAm ICgxPDxwY2gpKSkKKwkJCWNvbnRpbnVlOworCiAJCWlmIChwY2hfYWxsb2MgJiAoMSA8PCBwY2gp KSB7CiAJCQlwID0gJmQtPnBoeVtwY2hdOwogCQkJYyA9IHAtPnZjaGFuOwpAQCAtODU1LDYgKzg2 MiwxMyBAQCBzdGF0aWMgaW50IGszX2RtYV9wcm9iZShzdHJ1Y3QgcGxhdGZvcm1fZGV2aWNlICpv cCkKIAkJCQkiZG1hLWNoYW5uZWxzIiwgJmQtPmRtYV9jaGFubmVscyk7CiAJCW9mX3Byb3BlcnR5 X3JlYWRfdTMyKCgmb3AtPmRldiktPm9mX25vZGUsCiAJCQkJImRtYS1yZXF1ZXN0cyIsICZkLT5k bWFfcmVxdWVzdHMpOworCQlyZXQgPSBvZl9wcm9wZXJ0eV9yZWFkX3UzMigoJm9wLT5kZXYpLT5v Zl9ub2RlLAorCQkJCSJoaXNpLWRtYS1hdmFpbC1jaGFuIiwgJmQtPmRtYV9hdmFpbF9jaGFuKTsK KwkJaWYgKHJldCkgeworCQkJZGV2X3dhcm4oJm9wLT5kZXYsCisJCQkJICJoaXNpLWRtYS1hdmFp bC1jaGFuIGRvZXNuJ3QgZXhpc3QsIGNvbnNpZGVyaW5nIGFsbCBhcyBhdmFpbGFibGUuXG4iKTsK KwkJCWQtPmRtYV9hdmFpbF9jaGFuID0gKHUzMil+MFVMOworCQl9CiAJfQogCiAJaWYgKCEoc29j X2RhdGEtPmZsYWdzICYgSzNfRkxBR19OT0NMSykpIHsKQEAgLTg4Niw4ICs5MDAsMTIgQEAgc3Rh dGljIGludCBrM19kbWFfcHJvYmUoc3RydWN0IHBsYXRmb3JtX2RldmljZSAqb3ApCiAJCXJldHVy biAtRU5PTUVNOwogCiAJZm9yIChpID0gMDsgaSA8IGQtPmRtYV9jaGFubmVsczsgaSsrKSB7Ci0J CXN0cnVjdCBrM19kbWFfcGh5ICpwID0gJmQtPnBoeVtpXTsKKwkJc3RydWN0IGszX2RtYV9waHkg KnA7CisKKwkJaWYgKCEoZC0+ZG1hX2F2YWlsX2NoYW4gJiAoMTw8aSkpKQorCQkJY29udGludWU7 CiAKKwkJcCA9ICZkLT5waHlbaV07CiAJCXAtPmlkeCA9IGk7CiAJCXAtPmJhc2UgPSBkLT5iYXNl ICsgaSAqIDB4NDA7CiAJfQo=