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: [v2] dmaengine: imx-sdma: refine to load context only once From: Robin Gong Message-Id: <1546977740-10846-1-git-send-email-yibin.gong@nxp.com> Date: Tue, 8 Jan 2019 12:00:16 +0000 To: "vkoul@kernel.org" Cc: "dmaengine@vger.kernel.org" , "linux-kernel@vger.kernel.org" , dl-linux-imx List-ID: VGhlIGNvbnRleHQgbG9hZGVkIG9ubHkgb25lIHRpbWUgYmVmb3JlIGNoYW5uZWwgcnVubmluZyxi dXQKY3VycmVudGx5IHNkbWFfY29uZmlnX2NoYW5uZWwoKSBhbmQgZG1hX3ByZXBfKiBkdXBsaWNh dGVkIHdpdGgKc2RtYV9sb2FkX2NvbnRleHQoKSwgc28gcmVmaW5lIGl0IHRvIGxvYWQgY29udGV4 dCBvbmx5IG9uZSB0aW1lCmJlZm9yZSBjaGFubmVsIHJ1bm5pbmcgYW5kIHJlbG9hZCBhZnRlciB0 aGUgY2hhbm5lbCB0ZXJtaW5hdGVkLgoKU2lnbmVkLW9mZi1ieTogUm9iaW4gR29uZyA8eWliaW4u Z29uZ0BueHAuY29tPgotLS0KIGRyaXZlcnMvZG1hL2lteC1zZG1hLmMgfCA3ICsrKysrKysKIDEg ZmlsZSBjaGFuZ2VkLCA3IGluc2VydGlvbnMoKykKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2RtYS9p bXgtc2RtYS5jIGIvZHJpdmVycy9kbWEvaW14LXNkbWEuYwppbmRleCBhMmIwYTBlLi4wMTVjMTdh IDEwMDY0NAotLS0gYS9kcml2ZXJzL2RtYS9pbXgtc2RtYS5jCisrKyBiL2RyaXZlcnMvZG1hL2lt eC1zZG1hLmMKQEAgLTM3Nyw2ICszNzcsNyBAQCBzdHJ1Y3Qgc2RtYV9jaGFubmVsIHsKIAl1bnNp Z25lZCBsb25nCQkJd2F0ZXJtYXJrX2xldmVsOwogCXUzMgkJCQlzaHBfYWRkciwgcGVyX2FkZHI7 CiAJZW51bSBkbWFfc3RhdHVzCQkJc3RhdHVzOworCWJvb2wJCQkJY29udGV4dF9sb2FkZWQ7CiAJ c3RydWN0IGlteF9kbWFfZGF0YQkJZGF0YTsKIAlzdHJ1Y3Qgd29ya19zdHJ1Y3QJCXRlcm1pbmF0 ZV93b3JrZXI7CiB9OwpAQCAtOTcwLDYgKzk3MSw5IEBAIHN0YXRpYyBpbnQgc2RtYV9sb2FkX2Nv bnRleHQoc3RydWN0IHNkbWFfY2hhbm5lbCAqc2RtYWMpCiAJaW50IHJldDsKIAl1bnNpZ25lZCBs b25nIGZsYWdzOwogCisJaWYgKHNkbWFjLT5jb250ZXh0X2xvYWRlZCkKKwkJcmV0dXJuIDA7CisK IAlpZiAoc2RtYWMtPmRpcmVjdGlvbiA9PSBETUFfREVWX1RPX01FTSkKIAkJbG9hZF9hZGRyZXNz ID0gc2RtYWMtPnBjX2Zyb21fZGV2aWNlOwogCWVsc2UgaWYgKHNkbWFjLT5kaXJlY3Rpb24gPT0g RE1BX0RFVl9UT19ERVYpCkBAIC0xMDEyLDYgKzEwMTYsOCBAQCBzdGF0aWMgaW50IHNkbWFfbG9h ZF9jb250ZXh0KHN0cnVjdCBzZG1hX2NoYW5uZWwgKnNkbWFjKQogCiAJc3Bpbl91bmxvY2tfaXJx cmVzdG9yZSgmc2RtYS0+Y2hhbm5lbF8wX2xvY2ssIGZsYWdzKTsKIAorCXNkbWFjLT5jb250ZXh0 X2xvYWRlZCA9IHRydWU7CisKIAlyZXR1cm4gcmV0OwogfQogCkBAIC0xMDUxLDYgKzEwNTcsNyBA QCBzdGF0aWMgdm9pZCBzZG1hX2NoYW5uZWxfdGVybWluYXRlX3dvcmsoc3RydWN0IHdvcmtfc3Ry dWN0ICp3b3JrKQogCXNkbWFjLT5kZXNjID0gTlVMTDsKIAlzcGluX3VubG9ja19pcnFyZXN0b3Jl KCZzZG1hYy0+dmMubG9jaywgZmxhZ3MpOwogCXZjaGFuX2RtYV9kZXNjX2ZyZWVfbGlzdCgmc2Rt YWMtPnZjLCAmaGVhZCk7CisJc2RtYWMtPmNvbnRleHRfbG9hZGVkID0gZmFsc2U7CiB9CiAKIHN0 YXRpYyBpbnQgc2RtYV9kaXNhYmxlX2NoYW5uZWxfYXN5bmMoc3RydWN0IGRtYV9jaGFuICpjaGFu KQo=