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: pl330: introduce debugfs interface From: Katsuhiro Suzuki Message-Id: <20190317100306.18405-1-katsuhiro@katsuster.net> Date: Sun, 17 Mar 2019 19:03:06 +0900 To: Vinod Koul , dmaengine@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Katsuhiro Suzuki List-ID: VGhpcyBwYXRjaCBhZGRzIGRlYnVnZnMgaW50ZXJmYWNlIHRvIHNob3cgdGhlIHJlbGF0aW9uc2hp cCBiZXR3ZWVuCkRNQSB0aHJlYWRzIChoYXJkd2FyZSByZXNvdXJjZSBmb3IgdHJhbnNmZXJyaW5n IGRhdGEpIGFuZCBETUEKY2hhbm5lbCBJRCBvZiBETUEgc2xhdmUuCgpUeXBpY2FsbHksIFBMMzMw IGhhcyBtYW55IHNsYXZlcyB0aGFuIG51bWJlciBvZiBETUEgdGhyZWFkcy4KU28gc29tZXRpbWVz IFBMMzMwIGNhbm5vdCBhbGxvY2F0ZSBETUEgdGhyZWFkcyBmb3IgYWxsIHNsYXZlcyBldmVuCmlm IGEgdXNlciBzcGVjaWZ5IERNQSBjaGFubmVsIElEIGluIGRldmljZXRyZWUuIFRoaXMgaW50ZXJm YWNlIHdpbGwKYmUgdXNlZnVsIGZvciBjaGVja2luZyB0aGF0IERNQSB0aHJlYWRzIGFyZSBhbGxv Y2F0ZWQgb3Igbm90LgoKQmVsb3cgaXMgYW4gb3V0cHV0IHNhbXBsZToKCiQgc3VkbyBjYXQgL3N5 cy9rZXJuZWwvZGVidWcvZmYxZjAwMDAuZG1hYwpQTDMzMCBwaHlzaWNhbCBjaGFubmVsczoKVEhS RUFEOiAgICAgICAgIENIQU5ORUw6Ci0tLS0tLS0tICAgICAgICAtLS0tLQowICAgICAgICAgICAg ICAgOAoxICAgICAgICAgICAgICAgOQoyICAgICAgICAgICAgICAgMTEKMyAgICAgICAgICAgICAg IDEyCjQgICAgICAgICAgICAgICAxNAo1ICAgICAgICAgICAgICAgMTUKNiAgICAgICAgICAgICAg IDEwCjcgICAgICAgICAgICAgICAtLQoKU2lnbmVkLW9mZi1ieTogS2F0c3VoaXJvIFN1enVraSA8 a2F0c3VoaXJvQGthdHN1c3Rlci5uZXQ+Ci0tLQogZHJpdmVycy9kbWEvcGwzMzAuYyB8IDUxICsr KysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKwogMSBmaWxlIGNoYW5n ZWQsIDUxIGluc2VydGlvbnMoKykKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2RtYS9wbDMzMC5jIGIv ZHJpdmVycy9kbWEvcGwzMzAuYwppbmRleCBlZWM3OWZkZjI3YTUuLmM3MmY2ZmQ3OWM0MyAxMDA2 NDQKLS0tIGEvZHJpdmVycy9kbWEvcGwzMzAuYworKysgYi9kcml2ZXJzL2RtYS9wbDMzMC5jCkBA IC0xMSw2ICsxMSw3IEBACiAgKiAoYXQgeW91ciBvcHRpb24pIGFueSBsYXRlciB2ZXJzaW9uLgog ICovCiAKKyNpbmNsdWRlIDxsaW51eC9kZWJ1Z2ZzLmg+CiAjaW5jbHVkZSA8bGludXgva2VybmVs Lmg+CiAjaW5jbHVkZSA8bGludXgvaW8uaD4KICNpbmNsdWRlIDxsaW51eC9pbml0Lmg+CkBAIC0y ODk2LDYgKzI4OTcsNTUgQEAgc3RhdGljIGlycXJldHVybl90IHBsMzMwX2lycV9oYW5kbGVyKGlu dCBpcnEsIHZvaWQgKmRhdGEpCiAJQklUKERNQV9TTEFWRV9CVVNXSURUSF80X0JZVEVTKSB8IFwK IAlCSVQoRE1BX1NMQVZFX0JVU1dJRFRIXzhfQllURVMpCiAKKyNpZmRlZiBDT05GSUdfREVCVUdf RlMKK3N0YXRpYyBpbnQgcGwzMzBfZGVidWdmc19zaG93KHN0cnVjdCBzZXFfZmlsZSAqcywgdm9p ZCAqZGF0YSkKK3sKKwlzdHJ1Y3QgcGwzMzBfZG1hYyAqcGwzMzAgPSBzLT5wcml2YXRlOworCWlu dCBjaGFucywgcGNocywgY2gsIHByOworCisJY2hhbnMgPSBwbDMzMC0+cGNmZy5udW1fY2hhbjsK KwlwY2hzID0gcGwzMzAtPm51bV9wZXJpcGhlcmFsczsKKworCXNlcV9wdXRzKHMsICJQTDMzMCBw aHlzaWNhbCBjaGFubmVsczpcbiIpOworCXNlcV9wdXRzKHMsICJUSFJFQUQ6XHRcdENIQU5ORUw6 XG4iKTsKKwlzZXFfcHV0cyhzLCAiLS0tLS0tLS1cdC0tLS0tXG4iKTsKKwlmb3IgKGNoID0gMDsg Y2ggPCBjaGFuczsgY2grKykgeworCQlzdHJ1Y3QgcGwzMzBfdGhyZWFkICp0aHJkID0gJnBsMzMw LT5jaGFubmVsc1tjaF07CisJCWludCBmb3VuZCA9IC0xOworCisJCWZvciAocHIgPSAwOyBwciA8 IHBjaHM7IHByKyspIHsKKwkJCXN0cnVjdCBkbWFfcGwzMzBfY2hhbiAqcGNoID0gJnBsMzMwLT5w ZXJpcGhlcmFsc1twcl07CisKKwkJCWlmICghcGNoLT50aHJlYWQgfHwgdGhyZC0+aWQgIT0gcGNo LT50aHJlYWQtPmlkKQorCQkJCWNvbnRpbnVlOworCisJCQlmb3VuZCA9IHByOworCQl9CisKKwkJ c2VxX3ByaW50ZihzLCAiJWRcdFx0IiwgdGhyZC0+aWQpOworCQlpZiAoZm91bmQgPT0gLTEpCisJ CQlzZXFfcHV0cyhzLCAiLS1cbiIpOworCQllbHNlCisJCQlzZXFfcHJpbnRmKHMsICIlZFxuIiwg Zm91bmQpOworCX0KKworCXJldHVybiAwOworfQorCitERUZJTkVfU0hPV19BVFRSSUJVVEUocGwz MzBfZGVidWdmcyk7CisKK3N0YXRpYyBpbmxpbmUgdm9pZCBpbml0X3BsMzMwX2RlYnVnZnMoc3Ry dWN0IHBsMzMwX2RtYWMgKnBsMzMwKQoreworCWRlYnVnZnNfY3JlYXRlX2ZpbGUoZGV2X25hbWUo cGwzMzAtPmRkbWEuZGV2KSwKKwkJCSAgICBTX0lGUkVHIHwgMDQ0NCwgTlVMTCwgcGwzMzAsCisJ CQkgICAgJnBsMzMwX2RlYnVnZnNfZm9wcyk7Cit9CisjZWxzZQorc3RhdGljIGlubGluZSB2b2lk IGluaXRfcGwzMzBfZGVidWdmcyhzdHJ1Y3QgcGwzMzBfZG1hYyAqcGwzMzApCit7Cit9CisjZW5k aWYKKwogLyoKICAqIFJ1bnRpbWUgUE0gY2FsbGJhY2tzIGFyZSBwcm92aWRlZCBieSBhbWJhL2J1 cy5jIGRyaXZlci4KICAqCkBAIC0zMDgyLDYgKzMxMzIsNyBAQCBwbDMzMF9wcm9iZShzdHJ1Y3Qg YW1iYV9kZXZpY2UgKmFkZXYsIGNvbnN0IHN0cnVjdCBhbWJhX2lkICppZCkKIAkJZGV2X2Vycigm YWRldi0+ZGV2LCAidW5hYmxlIHRvIHNldCB0aGUgc2VnIHNpemVcbiIpOwogCiAKKwlpbml0X3Bs MzMwX2RlYnVnZnMocGwzMzApOwogCWRldl9pbmZvKCZhZGV2LT5kZXYsCiAJCSJMb2FkZWQgZHJp dmVyIGZvciBQTDMzMCBETUFDLSV4XG4iLCBhZGV2LT5wZXJpcGhpZCk7CiAJZGV2X2luZm8oJmFk ZXYtPmRldiwK