From: Tom St Denis Subject: [PATCH] drm/amd/amdgpu: Partial revert of iova debugfs Date: Wed, 20 Sep 2017 07:42:36 -0400 Message-ID: <20170920114236.29293-1-tom.stdenis@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "amd-gfx" To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Cc: Tom St Denis V2UgZGlzY292ZXJlZCB0aGF0IG9uIHNvbWUgZGV2aWNlcyBldmVuIHdpdGggaW9tbXUgZW5hYmxl ZAp5b3UgY2FuIGFjY2VzcyBhbGwgb2Ygc3lzdGVtIG1lbW9yeSB0aHJvdWdoIHRoZSBpb21tdSB0 cmFuc2xhdGlvbi4KClRoZXJlZm9yZSwgd2UgcmV2ZXJ0IHRoZSByZWFkIG1ldGhvZCB0byB0aGUg dHJhbnNsYXRpb24gb25seSBzZXJ2aWNlCmFuZCBkcm9wIHRoZSB3cml0ZSBtZXRob2QgY29tcGxl dGVseS4KClNpZ25lZC1vZmYtYnk6IFRvbSBTdCBEZW5pcyA8dG9tLnN0ZGVuaXNAYW1kLmNvbT4K LS0tCiBkcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfdHRtLmMgfCA5MCArKysrKy0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0KIDEgZmlsZSBjaGFuZ2VkLCAxMyBpbnNlcnRpb25z KCspLCA3NyBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2Ft ZGdwdS9hbWRncHVfdHRtLmMgYi9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfdHRt LmMKaW5kZXggMGU1Zjc4ZjNhOTdlLi5jZTQzNWRiYmIzOTggMTAwNjQ0Ci0tLSBhL2RyaXZlcnMv Z3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV90dG0uYworKysgYi9kcml2ZXJzL2dwdS9kcm0vYW1k L2FtZGdwdS9hbWRncHVfdHRtLmMKQEAgLTE3ODQsOTggKzE3ODQsMzQgQEAgc3RhdGljIHNzaXpl X3QgYW1kZ3B1X2lvdmFfdG9fcGh5c19yZWFkKHN0cnVjdCBmaWxlICpmLCBjaGFyIF9fdXNlciAq YnVmLAogCQkJCSAgIHNpemVfdCBzaXplLCBsb2ZmX3QgKnBvcykKIHsKIAlzdHJ1Y3QgYW1kZ3B1 X2RldmljZSAqYWRldiA9IGZpbGVfaW5vZGUoZiktPmlfcHJpdmF0ZTsKLQlzc2l6ZV90IHJlc3Vs dCwgbjsKIAlpbnQgcjsKIAl1aW50NjRfdCBwaHlzOwotCXZvaWQgKnB0cjsKIAlzdHJ1Y3QgaW9t bXVfZG9tYWluICpkb207CiAKLQlkb20gPSBpb21tdV9nZXRfZG9tYWluX2Zvcl9kZXYoYWRldi0+ ZGV2KTsKLQlpZiAoIWRvbSkKLQkJcmV0dXJuIC1FRkFVTFQ7Ci0KLQlyZXN1bHQgPSAwOwotCXdo aWxlIChzaXplKSB7Ci0JCS8vIGdldCBwaHlzaWNhbCBhZGRyZXNzIGFuZCBtYXAKLQkJcGh5cyA9 IGlvbW11X2lvdmFfdG9fcGh5cyhkb20sICpwb3MpOwotCi0JCS8vIGNvcHkgdXB0byBvbmUgcGFn ZQotCQlpZiAoc2l6ZSA+IFBBR0VfU0laRSkKLQkJCW4gPSBQQUdFX1NJWkU7Ci0JCWVsc2UKLQkJ CW4gPSBzaXplOwotCi0JCS8vIHRvIGVuZCBvZiB0aGUgcGFnZQotCQlpZiAoKCgqcG9zICYgKFBB R0VfU0laRSAtIDEpKSArIG4pID49IFBBR0VfU0laRSkKLQkJCW4gPSBQQUdFX1NJWkUgLSAoKnBv cyAmIChQQUdFX1NJWkUgLSAxKSk7Ci0KLQkJcHRyID0ga21hcChwZm5fdG9fcGFnZShQRk5fRE9X TihwaHlzKSkpOwotCQlpZiAoIXB0cikKLQkJCXJldHVybiAtRUZBVUxUOwotCi0JCXIgPSBjb3B5 X3RvX3VzZXIoYnVmLCBwdHIsIG4pOwotCQlrdW5tYXAocGZuX3RvX3BhZ2UoUEZOX0RPV04ocGh5 cykpKTsKLQkJaWYgKHIpCi0JCQlyZXR1cm4gLUVGQVVMVDsKLQotCQkqcG9zICs9IG47Ci0JCXNp emUgLT0gbjsKLQkJcmVzdWx0ICs9IG47Ci0JfQotCi0JcmV0dXJuIHJlc3VsdDsKLX0KKwkvLyBh bHdheXMgcmV0dXJuIDggYnl0ZXMKKwlpZiAoc2l6ZSAhPSA4KQorCQlyZXR1cm4gLUVJTlZBTDsK IAotc3RhdGljIHNzaXplX3QgYW1kZ3B1X2lvdmFfdG9fcGh5c193cml0ZShzdHJ1Y3QgZmlsZSAq ZiwgY29uc3QgY2hhciBfX3VzZXIgKmJ1ZiwKLQkJCQkgICBzaXplX3Qgc2l6ZSwgbG9mZl90ICpw b3MpCi17Ci0Jc3RydWN0IGFtZGdwdV9kZXZpY2UgKmFkZXYgPSBmaWxlX2lub2RlKGYpLT5pX3By aXZhdGU7Ci0Jc3NpemVfdCByZXN1bHQsIG47Ci0JaW50IHI7Ci0JdWludDY0X3QgcGh5czsKLQl2 b2lkICpwdHI7Ci0Jc3RydWN0IGlvbW11X2RvbWFpbiAqZG9tOworCS8vIG9ubHkgYWNjZXB0IHBh Z2UgYWRkcmVzc2VzCisJaWYgKCpwb3MgJiAweEZGRikKKwkJcmV0dXJuIC1FSU5WQUw7CiAKIAlk b20gPSBpb21tdV9nZXRfZG9tYWluX2Zvcl9kZXYoYWRldi0+ZGV2KTsKLQlpZiAoIWRvbSkKLQkJ cmV0dXJuIC1FRkFVTFQ7Ci0KLQlyZXN1bHQgPSAwOwotCXdoaWxlIChzaXplKSB7Ci0JCS8vIGdl dCBwaHlzaWNhbCBhZGRyZXNzIGFuZCBtYXAKKwlpZiAoZG9tKQogCQlwaHlzID0gaW9tbXVfaW92 YV90b19waHlzKGRvbSwgKnBvcyk7CisJZWxzZQorCQlwaHlzID0gKnBvczsKIAotCQkvLyBjb3B5 IHVwdG8gb25lIHBhZ2UKLQkJaWYgKHNpemUgPiBQQUdFX1NJWkUpCi0JCQluID0gUEFHRV9TSVpF OwotCQllbHNlCi0JCQluID0gc2l6ZTsKLQotCQkvLyB0byBlbmQgb2YgdGhlIHBhZ2UKLQkJaWYg KCgoKnBvcyAmIChQQUdFX1NJWkUgLSAxKSkgKyBuKSA+PSBQQUdFX1NJWkUpCi0JCQluID0gUEFH RV9TSVpFIC0gKCpwb3MgJiAoUEFHRV9TSVpFIC0gMSkpOwotCi0JCXB0ciA9IGttYXAocGZuX3Rv X3BhZ2UoUEZOX0RPV04ocGh5cykpKTsKLQkJaWYgKCFwdHIpCi0JCQlyZXR1cm4gLUVGQVVMVDsK LQotCQlyID0gY29weV9mcm9tX3VzZXIocHRyLCBidWYsIG4pOwotCQlrdW5tYXAocGZuX3RvX3Bh Z2UoUEZOX0RPV04ocGh5cykpKTsKLQkJaWYgKHIpCi0JCQlyZXR1cm4gLUVGQVVMVDsKLQotCQkq cG9zICs9IG47Ci0JCXNpemUgLT0gbjsKLQkJcmVzdWx0ICs9IG47Ci0JfQorCXIgPSBjb3B5X3Rv X3VzZXIoYnVmLCAmcGh5cywgOCk7CisJaWYgKHIpCisJCXJldHVybiAtRUZBVUxUOwogCi0JcmV0 dXJuIHJlc3VsdDsKKwlyZXR1cm4gODsKIH0KIAogc3RhdGljIGNvbnN0IHN0cnVjdCBmaWxlX29w ZXJhdGlvbnMgYW1kZ3B1X3R0bV9pb3ZhX2ZvcHMgPSB7CiAJLm93bmVyID0gVEhJU19NT0RVTEUs CiAJLnJlYWQgPSBhbWRncHVfaW92YV90b19waHlzX3JlYWQsCi0JLndyaXRlID0gYW1kZ3B1X2lv dmFfdG9fcGh5c193cml0ZSwKIAkubGxzZWVrID0gZGVmYXVsdF9sbHNlZWsKIH07CiAKLS0gCjIu MTIuMAoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KYW1k LWdmeCBtYWlsaW5nIGxpc3QKYW1kLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9s aXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9hbWQtZ2Z4Cg==