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: dmaengine: pl330: introduce debugfs interface From: Katsuhiro Suzuki Message-Id: <20190314184953.8129-1-katsuhiro@katsuster.net> Date: Fri, 15 Mar 2019 03:49:53 +0900 To: Vinod Koul , dmaengine@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Katsuhiro Suzuki List-ID: VGhpcyBwYXRjaCBhZGRzIGRlYnVnZnMgaW50ZXJmYWNlIHRvIHNob3cgdGhlIHJlbGF0aW9uc2hp cCBiZXR3ZWVuCkRNQSB0aHJlYWRzIChoYXJkd2FyZSByZXNvdXJjZSBmb3IgdHJhbnNmZXJyaW5n IGRhdGEpIGFuZCBETUEKY2hhbm5lbCBJRCBvZiBETUEgc2xhdmUuCgpUeXBpY2FsbHksIFBMMzMw IGhhcyBtYW55IHNsYXZlcyB0aGFuIG51bWJlciBvZiBETUEgdGhyZWFkcy4KU28gc29tZXRpbWVz IFBMMzMwIGNhbm5vdCBhbGxvY2F0ZSBETUEgdGhyZWFkcyBmb3IgYWxsIHNsYXZlcyBldmVuCmlm IGFuIHVzZXIgc3BlY2lmeSBETUEgY2hhbm5lbCBJRCBpbiBkZXZpY2V0cmVlLiBUaGlzIGludGVy ZmFjZSB3aWxsCmJlIHVzZWZ1bCBmb3IgY2hlY2tpbmcgdGhhdCBETUEgdGhyZWFkcyBhcmUgYWxs b2NhdGVkIG9yIG5vdC4KCkJlbG93IGlzIGFuIG91dHB1dCBzYW1wbGU6CgokIHN1ZG8gY2F0IC9z eXMva2VybmVsL2RlYnVnL2ZmMWYwMDAwLmRtYWMKUEwzMzAgcGh5c2ljYWwgY2hhbm5lbHM6ClRI UkVBRDogICAgICAgICBDSEFOTkVMOgotLS0tLS0tLSAgICAgICAgLS0tLS0KMCAgICAgICAgICAg ICAgIDgKMSAgICAgICAgICAgICAgIDkKMiAgICAgICAgICAgICAgIDExCjMgICAgICAgICAgICAg ICAxMgo0ICAgICAgICAgICAgICAgMTQKNSAgICAgICAgICAgICAgIDE1CjYgICAgICAgICAgICAg ICAxMAo3ICAgICAgICAgICAgICAgLS0KClNpZ25lZC1vZmYtYnk6IEthdHN1aGlybyBTdXp1a2kg PGthdHN1aGlyb0BrYXRzdXN0ZXIubmV0PgotLS0KIGRyaXZlcnMvZG1hL3BsMzMwLmMgfCA1MSAr KysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysKIDEgZmlsZSBjaGFu Z2VkLCA1MSBpbnNlcnRpb25zKCspCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9kbWEvcGwzMzAuYyBi L2RyaXZlcnMvZG1hL3BsMzMwLmMKaW5kZXggZWVjNzlmZGYyN2E1Li5hYWI3MTg2Mzc1N2MgMTAw NjQ0Ci0tLSBhL2RyaXZlcnMvZG1hL3BsMzMwLmMKKysrIGIvZHJpdmVycy9kbWEvcGwzMzAuYwpA QCAtMTEsNiArMTEsNyBAQAogICogKGF0IHlvdXIgb3B0aW9uKSBhbnkgbGF0ZXIgdmVyc2lvbi4K ICAqLwogCisjaW5jbHVkZSA8bGludXgvZGVidWdmcy5oPgogI2luY2x1ZGUgPGxpbnV4L2tlcm5l bC5oPgogI2luY2x1ZGUgPGxpbnV4L2lvLmg+CiAjaW5jbHVkZSA8bGludXgvaW5pdC5oPgpAQCAt Mjg5Niw2ICsyODk3LDU1IEBAIHN0YXRpYyBpcnFyZXR1cm5fdCBwbDMzMF9pcnFfaGFuZGxlcihp bnQgaXJxLCB2b2lkICpkYXRhKQogCUJJVChETUFfU0xBVkVfQlVTV0lEVEhfNF9CWVRFUykgfCBc CiAJQklUKERNQV9TTEFWRV9CVVNXSURUSF84X0JZVEVTKQogCisjaWZkZWYgQ09ORklHX0RFQlVH X0ZTCitzdGF0aWMgaW50IHBsMzMwX2RlYnVnZnNfc2hvdyhzdHJ1Y3Qgc2VxX2ZpbGUgKnMsIHZv aWQgKmRhdGEpCit7CisJc3RydWN0IHBsMzMwX2RtYWMgKnBsMzMwID0gcy0+cHJpdmF0ZTsKKwlp bnQgY2hhbnMsIHBjaHMsIGNoLCBwciwgZm91bmQ7CisKKwljaGFucyA9IHBsMzMwLT5wY2ZnLm51 bV9jaGFuOworCXBjaHMgPSBwbDMzMC0+bnVtX3BlcmlwaGVyYWxzOworCisJc2VxX3B1dHMocywg IlBMMzMwIHBoeXNpY2FsIGNoYW5uZWxzOlxuIik7CisJc2VxX3B1dHMocywgIlRIUkVBRDpcdFx0 Q0hBTk5FTDpcbiIpOworCXNlcV9wdXRzKHMsICItLS0tLS0tLVx0LS0tLS1cbiIpOworCWZvciAo Y2ggPSAwOyBjaCA8IGNoYW5zOyBjaCsrKSB7CisJCXN0cnVjdCBwbDMzMF90aHJlYWQgKnRocmQg PSAmcGwzMzAtPmNoYW5uZWxzW2NoXTsKKworCQlmb3VuZCA9IC0xOworCQlmb3IgKHByID0gMDsg cHIgPCBwY2hzOyBwcisrKSB7CisJCQlzdHJ1Y3QgZG1hX3BsMzMwX2NoYW4gKnBjaCA9ICZwbDMz MC0+cGVyaXBoZXJhbHNbcHJdOworCisJCQlpZiAoIXBjaC0+dGhyZWFkIHx8IHRocmQtPmlkICE9 IHBjaC0+dGhyZWFkLT5pZCkKKwkJCQljb250aW51ZTsKKworCQkJZm91bmQgPSBwcjsKKwkJfQor CisJCXNlcV9wcmludGYocywgIiVkXHRcdCIsIHRocmQtPmlkKTsKKwkJaWYgKGZvdW5kID09IC0x KQorCQkJc2VxX3B1dHMocywgIi0tXG4iKTsKKwkJZWxzZQorCQkJc2VxX3ByaW50ZihzLCAiJWRc biIsIGZvdW5kKTsKKwl9CisKKwlyZXR1cm4gMDsKK30KKworREVGSU5FX1NIT1dfQVRUUklCVVRF KHBsMzMwX2RlYnVnZnMpOworCitzdGF0aWMgaW5saW5lIHZvaWQgaW5pdF9wbDMzMF9kZWJ1Z2Zz KHN0cnVjdCBwbDMzMF9kbWFjICpwbDMzMCkKK3sKKwlkZWJ1Z2ZzX2NyZWF0ZV9maWxlKGRldl9u YW1lKHBsMzMwLT5kZG1hLmRldiksCisJCQkgICAgU19JRlJFRyB8IFNfSVJVR08sIE5VTEwsIHBs MzMwLAorCQkJICAgICZwbDMzMF9kZWJ1Z2ZzX2ZvcHMpOworfQorI2Vsc2UKK3N0YXRpYyBpbmxp bmUgdm9pZCBpbml0X3BsMzMwX2RlYnVnZnMoc3RydWN0IHBsMzMwX2RtYWMgKnBsMzMwKQorewor fQorI2VuZGlmCisKIC8qCiAgKiBSdW50aW1lIFBNIGNhbGxiYWNrcyBhcmUgcHJvdmlkZWQgYnkg YW1iYS9idXMuYyBkcml2ZXIuCiAgKgpAQCAtMzA4Miw2ICszMTMyLDcgQEAgcGwzMzBfcHJvYmUo c3RydWN0IGFtYmFfZGV2aWNlICphZGV2LCBjb25zdCBzdHJ1Y3QgYW1iYV9pZCAqaWQpCiAJCWRl dl9lcnIoJmFkZXYtPmRldiwgInVuYWJsZSB0byBzZXQgdGhlIHNlZyBzaXplXG4iKTsKIAogCisJ aW5pdF9wbDMzMF9kZWJ1Z2ZzKHBsMzMwKTsKIAlkZXZfaW5mbygmYWRldi0+ZGV2LAogCQkiTG9h ZGVkIGRyaXZlciBmb3IgUEwzMzAgRE1BQy0leFxuIiwgYWRldi0+cGVyaXBoaWQpOwogCWRldl9p bmZvKCZhZGV2LT5kZXYsCg==