From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Widawsky Subject: [PATCH 1/2] drm/i915: Track last register written (debug) Date: Thu, 19 Feb 2015 21:33:31 -0800 Message-ID: <1424410412-24910-1-git-send-email-benjamin.widawsky@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 ESMTP id 875276E64F for ; Thu, 19 Feb 2015 21:34:45 -0800 (PST) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Intel GFX Cc: Ben Widawsky , Ben Widawsky List-Id: intel-gfx@lists.freedesktop.org UmVnaXN0ZXIgd3JpdGVzIGFyZSBzdXBwb3NlZCB0byBiZSBwb3N0ZWQsIGFuZCB0aGVyZWZvcmUg ImZhc3QuIiBJbiBvcmRlciB0byB0cnkKdG8gcHJlc2VydmUgdGhpcyBiZWhhdmlvciwgdGhlIHBh dGNoIHVzZXMgcGVyY3B1IHZhcmlhYmxlcyB0byBtYWtlIHRoZSBvdmVyaGVhZAptaW5pbWFsLiBU aGUgc2xvdyBkYXRhIGNvbGxlY3Rpb24gaXMgZG9uZSBhdCBlcnJvciB0aW1lLCBhbmQgdGhhdCBv bmx5IG9jY3VycyBpZgp0aGUgdXNlciBzcGVjaWZpZWQgbW1pb19kZWJ1Zz0xIG1vZHVsZSBwYXJh bWV0ZXIuCgpJIHdyb3RlIHRoaXMgcGF0Y2ggdG8gdHJ5IHRvIHRyYWNrIGRvd24gYW5ub3lpbmcg YW5kIHNwb3JhZGljIGVycm9ycyBvbiBteQpCcm9hZHdlbGwgbGFwdG9wLiBTb21ldGltZXMgaXQn cyBvYnZpb3VzIGhvdyB5b3UgZ290IHRvIHRoaXMgcG9pbnQgZnJvbSB0aGUKYmFja3RyYWNlLCBi dXQgb3RoZXIgdGltZXMgaXQgaXNuJ3QuCgpPdXRwdXQgbG9va3MgbGlrZSB0aGlzOgpbICAgNjMu MTIyNzE2XSBbZHJtOmhzd191bmNsYWltZWRfcmVnX2RldGVjdF0gKkVSUk9SKiBVbmNsYWltZWQg cmVnaXN0ZXIgZGV0ZWN0ZWQuIFBsZWFzZSB1c2UgdGhlIGk5MTUubW1pb19kZWJ1Zz0xIHRvIGRl YnVnIHRoaXMgcHJvYmxlbS4KWyAgNjU4LjY2Mjk2MV0gLS0tLS0tLS0tLS0tWyBjdXQgaGVyZSBd LS0tLS0tLS0tLS0tCi4uLgpbICA2NTguNjYzMTEzXSAtLS1bIGVuZCB0cmFjZSBjN2YwYTE4YzRk NGUwMjdiIF0tLS0KWyAgNjU4LjY2MzExNF0gW2RybTpoc3dfdW5jbGFpbWVkX3JlZ19kZWJ1Z10g KkVSUk9SKiBMYXN0IHJlZ2lzdGVycyB3cml0dGVuOgpbICA2NTguNjYzMTE1XSBbZHJtOmhzd191 bmNsYWltZWRfcmVnX2RlYnVnXSAqRVJST1IqIAkweDAwMDAyMDMwClsgIDY1OC42NjMxMTZdIFtk cm06aHN3X3VuY2xhaW1lZF9yZWdfZGVidWddICpFUlJPUiogCTB4MDAwMjIwMzAKWyAgNjU4LjY2 MzExN10gW2RybTpoc3dfdW5jbGFpbWVkX3JlZ19kZWJ1Z10gKkVSUk9SKiAJMHgwMDAwMjAzMApb ICA2NTguNjYzMTE4XSBbZHJtOmhzd191bmNsYWltZWRfcmVnX2RlYnVnXSAqRVJST1IqIAkweDAw MDAyMDMwClsgIDY1OC42NjMxMTldIFtkcm06aHN3X3VuY2xhaW1lZF9yZWdfZGVidWddICpFUlJP UiogCTB4MDAwMDAwMDAKWyAgNjU4LjY2MzEyMF0gW2RybTpoc3dfdW5jbGFpbWVkX3JlZ19kZWJ1 Z10gKkVSUk9SKiAJMHgwMDAwMDAwMApbICA2NTguNjYzMTIxXSBbZHJtOmhzd191bmNsYWltZWRf cmVnX2RlYnVnXSAqRVJST1IqIAkweDAwMDAwMDAwClsgIDY1OC42NjMxMjJdIFtkcm06aHN3X3Vu Y2xhaW1lZF9yZWdfZGVidWddICpFUlJPUiogCTB4MDAwMDAwMDAKClRoZSBzYW1lIGRhdGEgaXMg b2J0YWluYWJsZSB3aXRoIHVzaW5nIHRoZSB2YXJpb3VzIHBlcmYvZnRyYWNlIGhvb2tzLCBidXQg dGhhdAppcyBhIGJpdCBsYXJnZXIgb2YgYSBoYW1tZXIuIEl0J3MgaGFyZCB0byB0ZWxsIGhvdyB1 c2VmdWwgdGhpcyBpcy93b3VsZCBiZS4KCkNjOiBQYXVsbyBaYW5vbmkgPHByemFub25pQGdtYWls LmNvbT4KU2lnbmVkLW9mZi1ieTogQmVuIFdpZGF3c2t5IDxiZW5AYndpZGF3c2submV0PgotLS0K IGRyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZHJ2LmggICAgIHwgMTEgKysrKysrKysrLS0KIGRy aXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3VuY29yZS5jIHwgMTEgKysrKysrKysrKy0KIDIgZmls ZXMgY2hhbmdlZCwgMTkgaW5zZXJ0aW9ucygrKSwgMyBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQg YS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2Rydi5oIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUv aTkxNV9kcnYuaAppbmRleCBjMzMzMjdkLi42ZmEyMmRiIDEwMDY0NAotLS0gYS9kcml2ZXJzL2dw dS9kcm0vaTkxNS9pOTE1X2Rydi5oCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZHJ2 LmgKQEAgLTI4ODIsMTAgKzI4ODIsMTcgQEAgaW50IHZsdl9mcmVxX29wY29kZShzdHJ1Y3QgZHJt X2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYsIGludCB2YWwpOwogI2RlZmluZSBJOTE1X1JFQUQxNl9O T1RSQUNFKHJlZykJZGV2X3ByaXYtPnVuY29yZS5mdW5jcy5tbWlvX3JlYWR3KGRldl9wcml2LCAo cmVnKSwgZmFsc2UpCiAjZGVmaW5lIEk5MTVfV1JJVEUxNl9OT1RSQUNFKHJlZywgdmFsKQlkZXZf cHJpdi0+dW5jb3JlLmZ1bmNzLm1taW9fd3JpdGV3KGRldl9wcml2LCAocmVnKSwgKHZhbCksIGZh bHNlKQogCitERUNMQVJFX1BFUl9DUFUodWludDMyX3QsIGk5MTVfbGFzdF93cml0dGVuKTsKICNk ZWZpbmUgSTkxNV9SRUFEKHJlZykJCWRldl9wcml2LT51bmNvcmUuZnVuY3MubW1pb19yZWFkbChk ZXZfcHJpdiwgKHJlZyksIHRydWUpCi0jZGVmaW5lIEk5MTVfV1JJVEUocmVnLCB2YWwpCWRldl9w cml2LT51bmNvcmUuZnVuY3MubW1pb193cml0ZWwoZGV2X3ByaXYsIChyZWcpLCAodmFsKSwgdHJ1 ZSkKKyNkZWZpbmUgSTkxNV9XUklURShyZWcsIHZhbCkJZG8gewkJCQkJCVwKKwlkZXZfcHJpdi0+ dW5jb3JlLmZ1bmNzLm1taW9fd3JpdGVsKGRldl9wcml2LCAocmVnKSwgKHZhbCksIHRydWUpOwlc CisJcmF3X2NwdV93cml0ZShpOTE1X2xhc3Rfd3JpdHRlbiwgcmVnKTsJCQkJCVwKK30gd2hpbGUg KDApCiAjZGVmaW5lIEk5MTVfUkVBRF9OT1RSQUNFKHJlZykJCWRldl9wcml2LT51bmNvcmUuZnVu Y3MubW1pb19yZWFkbChkZXZfcHJpdiwgKHJlZyksIGZhbHNlKQotI2RlZmluZSBJOTE1X1dSSVRF X05PVFJBQ0UocmVnLCB2YWwpCWRldl9wcml2LT51bmNvcmUuZnVuY3MubW1pb193cml0ZWwoZGV2 X3ByaXYsIChyZWcpLCAodmFsKSwgZmFsc2UpCisjZGVmaW5lIEk5MTVfV1JJVEVfTk9UUkFDRShy ZWcsIHZhbCkJZG8gewkJCQkJXAorCWRldl9wcml2LT51bmNvcmUuZnVuY3MubW1pb193cml0ZWwo ZGV2X3ByaXYsIChyZWcpLCAodmFsKSwgZmFsc2UpOwlcCisJcmF3X2NwdV93cml0ZShpOTE1X2xh c3Rfd3JpdHRlbiwgcmVnKTsJCQkJCVwKK30gd2hpbGUgKDApCiAKIC8qIEJlIHZlcnkgY2FyZWZ1 bCB3aXRoIHJlYWQvd3JpdGUgNjQtYml0IHZhbHVlcy4gT24gMzItYml0IG1hY2hpbmVzLCB0aGV5 CiAgKiB3aWxsIGJlIGltcGxlbWVudGVkIHVzaW5nIDIgMzItYml0IHdyaXRlcyBpbiBhbiBhcmJp dHJhcnkgb3JkZXIgd2l0aApkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxf dW5jb3JlLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF91bmNvcmUuYwppbmRleCBiMjkw OTFiLi4wMDFjZTU1IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF91bmNv cmUuYworKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF91bmNvcmUuYwpAQCAtMzMsNyAr MzMsMTAgQEAKICNkZWZpbmUgX19yYXdfaTkxNV93cml0ZTE2KGRldl9wcml2X18sIHJlZ19fLCB2 YWxfXykgd3JpdGV3KHZhbF9fLCAoZGV2X3ByaXZfXyktPnJlZ3MgKyAocmVnX18pKQogCiAjZGVm aW5lIF9fcmF3X2k5MTVfcmVhZDMyKGRldl9wcml2X18sIHJlZ19fKSByZWFkbCgoZGV2X3ByaXZf XyktPnJlZ3MgKyAocmVnX18pKQotI2RlZmluZSBfX3Jhd19pOTE1X3dyaXRlMzIoZGV2X3ByaXZf XywgcmVnX18sIHZhbF9fKSB3cml0ZWwodmFsX18sIChkZXZfcHJpdl9fKS0+cmVncyArIChyZWdf XykpCisjZGVmaW5lIF9fcmF3X2k5MTVfd3JpdGUzMihkZXZfcHJpdl9fLCByZWdfXywgdmFsX18p IGRvIHsgXAorCXdyaXRlbCh2YWxfXywgKGRldl9wcml2X18pLT5yZWdzICsgKHJlZ19fKSk7CSAg XAorCXJhd19jcHVfd3JpdGUoaTkxNV9sYXN0X3dyaXR0ZW4sIHJlZ19fKTsJICBcCit9IHdoaWxl ICgwKQogCiAjZGVmaW5lIF9fcmF3X2k5MTVfcmVhZDY0KGRldl9wcml2X18sIHJlZ19fKSByZWFk cSgoZGV2X3ByaXZfXyktPnJlZ3MgKyAocmVnX18pKQogI2RlZmluZSBfX3Jhd19pOTE1X3dyaXRl NjQoZGV2X3ByaXZfXywgcmVnX18sIHZhbF9fKSB3cml0ZXEodmFsX18sIChkZXZfcHJpdl9fKS0+ cmVncyArIChyZWdfXykpCkBAIC01MTMsNiArNTE2LDcgQEAgaWxrX2R1bW15X3dyaXRlKHN0cnVj dCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdikKIAlfX3Jhd19pOTE1X3dyaXRlMzIoZGV2X3By aXYsIE1JX01PREUsIDApOwogfQogCitERUZJTkVfUEVSX0NQVSh1aW50MzJfdCwgaTkxNV9sYXN0 X3dyaXR0ZW4pOwogc3RhdGljIHZvaWQKIGhzd191bmNsYWltZWRfcmVnX2RlYnVnKHN0cnVjdCBk cm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiwgdTMyIHJlZywgYm9vbCByZWFkLAogCQkJYm9vbCBi ZWZvcmUpCkBAIC01MjQsOCArNTI4LDEzIEBAIGhzd191bmNsYWltZWRfcmVnX2RlYnVnKHN0cnVj dCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiwgdTMyIHJlZywgYm9vbCByZWFkLAogCQlyZXR1 cm47CiAKIAlpZiAoX19yYXdfaTkxNV9yZWFkMzIoZGV2X3ByaXYsIEZQR0FfREJHKSAmIEZQR0Ff REJHX1JNX05PQ0xBSU0pIHsKKwkJaW50IGNwdTsKIAkJV0FSTigxLCAiVW5jbGFpbWVkIHJlZ2lz dGVyIGRldGVjdGVkICVzICVzIHJlZ2lzdGVyIDB4JXhcbiIsCiAJCSAgICAgd2hlbiwgb3AsIHJl Zyk7CisJCURSTV9FUlJPUigiTGFzdCByZWdpc3RlcnMgd3JpdHRlbjpcbiIpOworCQlmb3JfZWFj aF9wb3NzaWJsZV9jcHUoY3B1KQorCQkJRFJNX0VSUk9SKCJcdDB4JTA4eFxuIiwgcGVyX2NwdShp OTE1X2xhc3Rfd3JpdHRlbiwgY3B1KSk7CisKIAkJX19yYXdfaTkxNV93cml0ZTMyKGRldl9wcml2 LCBGUEdBX0RCRywgRlBHQV9EQkdfUk1fTk9DTEFJTSk7CiAJfQogfQotLSAKMi4zLjAKCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWls aW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwOi8vbGlzdHMuZnJl ZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==