From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Kuoppala Subject: [PATCH 1/4] drm/i915/gen8: Disable master intr before reading Date: Tue, 2 Oct 2018 17:05:49 +0300 Message-ID: <20181002140552.1051-1-mika.kuoppala@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id B32AC6E315 for ; Tue, 2 Oct 2018 14:06:23 +0000 (UTC) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org RGlzYWJsZSBtYXN0ZXIgaW50ZXJydXB0IGJlZm9yZSByZWFkaW5nIGxldmVsIGluZGljYXRpb25z LgpUaGlzIHdpbGwgY2xvc2UgYSByYWNlIHdoZXJlIHdlIGdldCBhIGxldmVsIGluZGljYXRpb24g YmV0d2VlbgpyZWFkaW5nIGFuZCBkaXNhYmxpbmcsIGdlbmVyYXRpbmcgYW4gZXh0cmEgaW50ZXJy dXB0IHdoZXJlIHdlCmNvdWxkIGhhdmUgYXZvaWRlZCBvbmUuCgpGdXJ0aGVyLCBhcyB0aGUgcmVh ZGluZyBhY3RzIGFsc28gYXMgYSBwb3N0LCByZXBsYWNlIHRoZQp3cml0ZS9wb3N0IG9uIHRoZSBp cnEgcmVzZXQgd2l0aCB0aGUgaGVscGVyLiBPbiBlbmFibGluZyBzaWRlLApwb3N0aW5nIGRvZXNu J3Qgc2VydmUgYW55IHB1cnBvc2Ugc28gaXQgY2FuIGFsc28gYmUgcmVwbGFjZWQKd2l0aCBoZWxw ZXIuCgpDYzogQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+CkNjOiBWaWxs ZSBTeXJqw6Rsw6QgPHZpbGxlLnN5cmphbGFAbGludXguaW50ZWwuY29tPgpTaWduZWQtb2ZmLWJ5 OiBNaWthIEt1b3BwYWxhIDxtaWthLmt1b3BwYWxhQGxpbnV4LmludGVsLmNvbT4KLS0tCiBkcml2 ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2lycS5jIHwgMzYgKysrKysrKysrKysrKysrKysrKysrKysr LS0tLS0tLS0tCiAxIGZpbGUgY2hhbmdlZCwgMjYgaW5zZXJ0aW9ucygrKSwgMTAgZGVsZXRpb25z KC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9pcnEuYyBiL2RyaXZl cnMvZ3B1L2RybS9pOTE1L2k5MTVfaXJxLmMKaW5kZXggMmUyNDIyNzBlMjcwLi5jYmMwNGRkNTkw NDEgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfaXJxLmMKKysrIGIvZHJp dmVycy9ncHUvZHJtL2k5MTUvaTkxNV9pcnEuYwpAQCAtMjg4NywyMSArMjg4NywzOSBAQCBnZW44 X2RlX2lycV9oYW5kbGVyKHN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiwgdTMyIG1h c3Rlcl9jdGwpCiAJcmV0dXJuIHJldDsKIH0KIAorc3RhdGljIGlubGluZSB1MzIgZ2VuOF9tYXN0 ZXJfaW50cl9kaXNhYmxlKHZvaWQgX19pb21lbSAqIGNvbnN0IHJlZ3MpCit7CisJcmF3X3JlZ193 cml0ZShyZWdzLCBHRU44X01BU1RFUl9JUlEsIDApOworCisJLyoKKwkgKiBOb3cgd2l0aCBtYXN0 ZXIgZGlzYWJsZWQsIGdldCBhIHNhbXBsZSBvZiBsZXZlbCBpbmRpY2F0aW9ucworCSAqIGZvciB0 aGlzIGludGVycnVwdC4gSW5kaWNhdGlvbnMgd2lsbCBiZSBjbGVhcmVkIG9uIHJlbGF0ZWQgYWNr cy4KKwkgKiBOZXcgaW5kaWNhdGlvbnMgY2FuIGFuZCB3aWxsIGxpZ2h0IHVwIGR1cmluZyBwcm9j ZXNzaW5nLAorCSAqIGFuZCB3aWxsIGdlbmVyYXRlIG5ldyBpbnRlcnJ1cHQgYWZ0ZXIgZW5hYmxp bmcgbWFzdGVyLgorCSAqLworCXJldHVybiByYXdfcmVnX3JlYWQocmVncywgR0VOOF9NQVNURVJf SVJRKTsKK30KKworc3RhdGljIGlubGluZSB2b2lkIGdlbjhfbWFzdGVyX2ludHJfZW5hYmxlKHZv aWQgX19pb21lbSAqIGNvbnN0IHJlZ3MpCit7CisJcmF3X3JlZ193cml0ZShyZWdzLCBHRU44X01B U1RFUl9JUlEsIEdFTjhfTUFTVEVSX0lSUV9DT05UUk9MKTsKK30KKwogc3RhdGljIGlycXJldHVy bl90IGdlbjhfaXJxX2hhbmRsZXIoaW50IGlycSwgdm9pZCAqYXJnKQogewogCXN0cnVjdCBkcm1f aTkxNV9wcml2YXRlICpkZXZfcHJpdiA9IHRvX2k5MTUoYXJnKTsKKwl2b2lkIF9faW9tZW0gKiBj b25zdCByZWdzID0gZGV2X3ByaXYtPnJlZ3M7CiAJdTMyIG1hc3Rlcl9jdGw7CiAJdTMyIGd0X2lp cls0XTsKIAogCWlmICghaW50ZWxfaXJxc19lbmFibGVkKGRldl9wcml2KSkKIAkJcmV0dXJuIElS UV9OT05FOwogCi0JbWFzdGVyX2N0bCA9IEk5MTVfUkVBRF9GVyhHRU44X01BU1RFUl9JUlEpOwot CW1hc3Rlcl9jdGwgJj0gfkdFTjhfTUFTVEVSX0lSUV9DT05UUk9MOwotCWlmICghbWFzdGVyX2N0 bCkKKwltYXN0ZXJfY3RsID0gZ2VuOF9tYXN0ZXJfaW50cl9kaXNhYmxlKHJlZ3MpOworCWlmICgh bWFzdGVyX2N0bCkgeworCQlnZW44X21hc3Rlcl9pbnRyX2VuYWJsZShyZWdzKTsKIAkJcmV0dXJu IElSUV9OT05FOwotCi0JSTkxNV9XUklURV9GVyhHRU44X01BU1RFUl9JUlEsIDApOworCX0KIAog CS8qIEZpbmQsIGNsZWFyLCB0aGVuIHByb2Nlc3MgZWFjaCBzb3VyY2Ugb2YgaW50ZXJydXB0ICov CiAJZ2VuOF9ndF9pcnFfYWNrKGRldl9wcml2LCBtYXN0ZXJfY3RsLCBndF9paXIpOwpAQCAtMjkx Myw3ICsyOTMxLDcgQEAgc3RhdGljIGlycXJldHVybl90IGdlbjhfaXJxX2hhbmRsZXIoaW50IGly cSwgdm9pZCAqYXJnKQogCQllbmFibGVfcnBtX3dha2VyZWZfYXNzZXJ0cyhkZXZfcHJpdik7CiAJ fQogCi0JSTkxNV9XUklURV9GVyhHRU44X01BU1RFUl9JUlEsIEdFTjhfTUFTVEVSX0lSUV9DT05U Uk9MKTsKKwlnZW44X21hc3Rlcl9pbnRyX2VuYWJsZShyZWdzKTsKIAogCWdlbjhfZ3RfaXJxX2hh bmRsZXIoZGV2X3ByaXYsIG1hc3Rlcl9jdGwsIGd0X2lpcik7CiAKQEAgLTM1OTgsOCArMzYxNiw3 IEBAIHN0YXRpYyB2b2lkIGdlbjhfaXJxX3Jlc2V0KHN0cnVjdCBkcm1fZGV2aWNlICpkZXYpCiAJ c3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2ID0gdG9faTkxNShkZXYpOwogCWludCBw aXBlOwogCi0JSTkxNV9XUklURShHRU44X01BU1RFUl9JUlEsIDApOwotCVBPU1RJTkdfUkVBRChH RU44X01BU1RFUl9JUlEpOworCWdlbjhfbWFzdGVyX2ludHJfZGlzYWJsZShkZXZfcHJpdi0+cmVn cyk7CiAKIAlnZW44X2d0X2lycV9yZXNldChkZXZfcHJpdik7CiAKQEAgLTQyNDQsOCArNDI2MSw3 IEBAIHN0YXRpYyBpbnQgZ2VuOF9pcnFfcG9zdGluc3RhbGwoc3RydWN0IGRybV9kZXZpY2UgKmRl dikKIAlpZiAoSEFTX1BDSF9TUExJVChkZXZfcHJpdikpCiAJCWlieF9pcnFfcG9zdGluc3RhbGwo ZGV2KTsKIAotCUk5MTVfV1JJVEUoR0VOOF9NQVNURVJfSVJRLCBHRU44X01BU1RFUl9JUlFfQ09O VFJPTCk7Ci0JUE9TVElOR19SRUFEKEdFTjhfTUFTVEVSX0lSUSk7CisJZ2VuOF9tYXN0ZXJfaW50 cl9lbmFibGUoZGV2X3ByaXYtPnJlZ3MpOwogCiAJcmV0dXJuIDA7CiB9Ci0tIAoyLjE3LjEKCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBt YWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3Rz LmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=