From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Kuoppala Subject: [PATCH 1/4] drm/i915: Teach hangcheck about long operations on rings Date: Mon, 30 Nov 2015 18:53:06 +0200 Message-ID: <1448902389-12477-1-git-send-email-mika.kuoppala@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 46CAA6E614 for ; Mon, 30 Nov 2015 08:53:52 -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@lists.freedesktop.org Cc: miku@iki.fi List-Id: intel-gfx@lists.freedesktop.org U29tZSBvcGVyYXRpb25zIHRoYXQgaGFwcGVuIGluIHJpbmdidWZmZXIsIGxpa2UgZmx1c2hpbmcs CmNhbiB0YWtlIHNpZ25pZmljYW50IGFtb3VudHMgb2YgdGltZS4gQWZ0ZXIgc29tZSBpbnRlbnNl CnNoYWRlciB0ZXN0cywgdGhlIFBJUEVfQ09OVFJPTCB3aXRoIGZsdXNoIGNhbiBhcHBhcmVudGx5 IGxhc3QKbG9uZ2VyIHRpbWUgdGhhbiB3aGF0IGlzIG91ciBoYW5nY2hlY2sgdGljayAoMTUwMG1z KS4gSWYKdGhpcyBoYXBwZW5zIHR3aWNlIGluIGEgcm93LCBldmVuIHdpdGggc3Vic2VxdWVudCBi YXRjaGVzLAp0aGUgaGFuZ2NoZWNrIHNjb3JlIGRlY2F5aW5nIG1lY2hhbmlzbSBjYW4ndCBjb3Bl IGFuZApoYW5nIGlzIGRlY2xhcmVkLgoKU3RyaXAgb3V0IGFjdHVhbCBoZWFkIGNoZWNraW5nIHRv IGEgc2VwYXJhdGUgZnVuY3Rpb24gYW5kIGlmCmFjdHVhbCBoZWFkIGhhcyBub3QgbW92ZWQsIGNo ZWNrIGlmIGl0IGlzIGxpbmdlcmluZyBpbnNpZGUgdGhlCnJpbmdidWZmZXIgYXMgb3Bwb3NlZCB0 byBiYXRjaC4gSWYgc28sIHRyZWF0IGl0IGFzIGlmIGl0IHdvdWxkIGJlCmluc2lkZSBsb29wIHRv IG9ubHkgc2xpZ2h0bHkgaW5jcmVtZW50IHRoZSBoYW5nY2hlY2sgc2NvcmUuCgpSZWZlcmVuY2Vz OiBodHRwczovL2J1Z3MuZnJlZWRlc2t0b3Aub3JnL3Nob3dfYnVnLmNnaT9pZD05MzAyOQpDYzog Q2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+ClNpZ25lZC1vZmYtYnk6IE1p a2EgS3VvcHBhbGEgPG1pa2Eua3VvcHBhbGFAaW50ZWwuY29tPgotLS0KIGRyaXZlcnMvZ3B1L2Ry bS9pOTE1L2k5MTVfaXJxLmMgfCAyOCArKysrKysrKysrKysrKysrKysrKysrKysrKy0tCiAxIGZp bGUgY2hhbmdlZCwgMjYgaW5zZXJ0aW9ucygrKSwgMiBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQg YS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2lycS5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUv aTkxNV9pcnEuYwppbmRleCBlODhkNjkyLi42ZWQ2NTcxIDEwMDY0NAotLS0gYS9kcml2ZXJzL2dw dS9kcm0vaTkxNS9pOTE1X2lycS5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfaXJx LmMKQEAgLTI5MTQsMTEgKzI5MTQsMTEgQEAgc3RhdGljIHZvaWQgc2VtYXBob3JlX2NsZWFyX2Rl YWRsb2NrcyhzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYpCiB9CiAKIHN0YXRpYyBl bnVtIGludGVsX3JpbmdfaGFuZ2NoZWNrX2FjdGlvbgotcmluZ19zdHVjayhzdHJ1Y3QgaW50ZWxf ZW5naW5lX2NzICpyaW5nLCB1NjQgYWN0aGQpCitoZWFkX3N0dWNrKHN0cnVjdCBpbnRlbF9lbmdp bmVfY3MgKnJpbmcsIHU2NCBhY3RoZCkKIHsKIAlzdHJ1Y3QgZHJtX2RldmljZSAqZGV2ID0gcmlu Zy0+ZGV2OwogCXN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiA9IGRldi0+ZGV2X3By aXZhdGU7Ci0JdTMyIHRtcDsKKwl1MzIgaGVhZDsKIAogCWlmIChhY3RoZCAhPSByaW5nLT5oYW5n Y2hlY2suYWN0aGQpIHsKIAkJaWYgKGFjdGhkID4gcmluZy0+aGFuZ2NoZWNrLm1heF9hY3RoZCkg ewpAQCAtMjkyOSw2ICsyOTI5LDMwIEBAIHJpbmdfc3R1Y2soc3RydWN0IGludGVsX2VuZ2luZV9j cyAqcmluZywgdTY0IGFjdGhkKQogCQlyZXR1cm4gSEFOR0NIRUNLX0FDVElWRV9MT09QOwogCX0K IAorCWhlYWQgPSBJOTE1X1JFQURfSEVBRChyaW5nKSAmIEhFQURfQUREUjsKKworCS8qIFNvbWUg b3BlcmF0aW9ucywgbGlrZSBwaXBlIGZsdXNoLCBjYW4gdGFrZSBhIGxvbmcgdGltZS4KKwkgKiBE ZXRlY3QgaWYgd2UgYXJlIGluc2lkZSByaW5nYnVmZmVyIGFuZCB0cmVhdCB0aGVzZSBhcyBpZgor CSAqIHRoZSByaW5nIHdvdWxkIGJlIGJ1c3kuCisJICovCisJaWYgKGxvd2VyXzMyX2JpdHMoYWN0 aGQpID09IGhlYWQpCisJCXJldHVybiBIQU5HQ0hFQ0tfQUNUSVZFX0xPT1A7CisKKwlyZXR1cm4g SEFOR0NIRUNLX0hVTkc7Cit9CisKK3N0YXRpYyBlbnVtIGludGVsX3JpbmdfaGFuZ2NoZWNrX2Fj dGlvbgorcmluZ19zdHVjayhzdHJ1Y3QgaW50ZWxfZW5naW5lX2NzICpyaW5nLCB1NjQgYWN0aGQp Cit7CisJc3RydWN0IGRybV9kZXZpY2UgKmRldiA9IHJpbmctPmRldjsKKwlzdHJ1Y3QgZHJtX2k5 MTVfcHJpdmF0ZSAqZGV2X3ByaXYgPSBkZXYtPmRldl9wcml2YXRlOworCWVudW0gaW50ZWxfcmlu Z19oYW5nY2hlY2tfYWN0aW9uIGhhOworCXUzMiB0bXA7CisKKwloYSA9IGhlYWRfc3R1Y2socmlu ZywgYWN0aGQpOworCWlmIChoYSAhPSBIQU5HQ0hFQ0tfSFVORykKKwkJcmV0dXJuIGhhOworCiAJ aWYgKElTX0dFTjIoZGV2KSkKIAkJcmV0dXJuIEhBTkdDSEVDS19IVU5HOwogCi0tIAoyLjUuMAoK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4 IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHA6Ly9saXN0 cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK