From mboxrd@z Thu Jan 1 00:00:00 1970 From: John.C.Harrison@Intel.com Subject: [RFC 32/38] drm/i915/preempt: add hook to catch 'unexpected' ring submissions Date: Fri, 11 Dec 2015 14:49:09 +0000 Message-ID: <1449845349-14722-1-git-send-email-John.C.Harrison@Intel.com> References: <1448278932-31551-33-git-send-email-John.C.Harrison@Intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTP id A6F096E541 for ; Fri, 11 Dec 2015 06:49:11 -0800 (PST) In-Reply-To: <1448278932-31551-33-git-send-email-John.C.Harrison@Intel.com> 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 RnJvbTogRGF2ZSBHb3Jkb24gPGRhdmlkLnMuZ29yZG9uQGludGVsLmNvbT4KCkF1dGhvcjogSm9o biBIYXJyaXNvbiA8Sm9obi5DLkhhcnJpc29uQEludGVsLmNvbT4KRGF0ZTogICBUaHUgQXByIDEw IDEwOjQxOjA2IDIwMTQgKzAxMDAKClRoZSBzY2hlZHVsZXIgbmVlZHMgdG8ga25vdyB3aGF0IGVh Y2ggc2Vxbm8gdGhhdCBwb3BzIG91dCBvZiB0aGUgcmluZyBpcwpyZWZlcnJpbmcgdG8uIFRoaXMg Y2hhbmdlIGFkZHMgYSBob29rIGludG8gdGhlIHRoZSAnc3VibWl0IHNvbWUgcmFuZG9tCndvcmsg dGhhdCBnb3QgZm9yZ290dGVuIGFib3V0JyBjbGVhbiB1cCBjb2RlIHRvIGluZm9ybSB0aGUgc2No ZWR1bGVyCnRoYXQgYSBuZXcgc2Vxbm8gaGFzIGJlZW4gc2VudCB0byB0aGUgcmluZyBmb3Igc29t ZSBub24tYmF0Y2ggYnVmZmVyCm9wZXJhdGlvbi4KClJld29ya2VkIGZvciBsYXRlc3Qgc2NoZWR1 bGVyK3ByZWVtcHRpb24gYnkgRGF2ZSBHb3Jkb246IHdpdGggdGhlIG5ld2VyCmltcGxlbWVudGF0 aW9uLCBrbm93aW5nIGFib3V0IHVudHJhY2tlZCByZXF1ZXN0cyBpcyBtZXJlbHkgaGVscGZ1bCBm b3IKZGVidWdnaW5nIHJhdGhlciB0aGFuIGJlaW5nIG1hbmRhdG9yeSwgYXMgd2UgaGF2ZSBhbHJl YWR5IHRha2VuIHN0ZXBzIHRvCnByZXZlbnQgdW50cmFja2VkIHJlcXVlc3RzIGludHJ1ZGluZyBh dCBhd2t3YXJkIG1vbWVudHMhCgp2MjogUmVtb3ZlZCB1bm5lY2Vzc2FyeSBkZWJ1ZyBzcGV3LgoK Rm9yOiBWSVotMjAyMQpTaWduZWQtb2ZmLWJ5OiBKb2huIEhhcnJpc29uIDxKb2huLkMuSGFycmlz b25ASW50ZWwuY29tPgpTaWduZWQtb2ZmLWJ5OiBEYXZlIEdvcmRvbiA8ZGF2aWQucy5nb3Jkb25A aW50ZWwuY29tPgotLS0KIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtLmMgICAgICAgfCAg NCArKysrCiBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dwdV9lcnJvci5jIHwgIDIgKysKIGRy aXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfc2NoZWR1bGVyLmMgfCAyMSArKysrKysrKysrKysrKysr KysrKysKIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfc2NoZWR1bGVyLmggfCAgMSArCiA0IGZp bGVzIGNoYW5nZWQsIDI4IGluc2VydGlvbnMoKykKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9k cm0vaTkxNS9pOTE1X2dlbS5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW0uYwppbmRl eCBlYTNkMjI0Li5hOTFiOTE2IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1 X2dlbS5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtLmMKQEAgLTI1OTcsNiAr MjU5NywxMCBAQCB2b2lkIF9faTkxNV9hZGRfcmVxdWVzdChzdHJ1Y3QgZHJtX2k5MTVfZ2VtX3Jl cXVlc3QgKnJlcXVlc3QsCiAJCVdBUk5fT04ocmVxdWVzdC0+c2Vxbm8gIT0gZGV2X3ByaXYtPmxh c3Rfc2Vxbm8pOwogCX0KIAorCS8qIE5vdGlmeSB0aGUgc2NoZWR1bGVyLCBpZiBpdCBkb2Vzbid0 IGFscmVhZHkgdHJhY2sgdGhpcyByZXF1ZXN0ICovCisJaWYgKCFyZXF1ZXN0LT5zY2hlZHVsZXJf cWUpCisJCWk5MTVfc2NoZWR1bGVyX2ZseV9yZXF1ZXN0KHJlcXVlc3QpOworCiAJLyogUmVjb3Jk IHRoZSBwb3NpdGlvbiBvZiB0aGUgc3RhcnQgb2YgdGhlIHJlcXVlc3Qgc28gdGhhdAogCSAqIHNo b3VsZCB3ZSBkZXRlY3QgdGhlIHVwZGF0ZWQgc2Vxbm8gcGFydC13YXkgdGhyb3VnaCB0aGUKIAkg KiBHUFUgcHJvY2Vzc2luZyB0aGUgcmVxdWVzdCwgd2UgbmV2ZXIgb3Zlci1lc3RpbWF0ZSB0aGUK ZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ3B1X2Vycm9yLmMgYi9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dwdV9lcnJvci5jCmluZGV4IDJkOWRkM2YuLjcyYzg2MWUg MTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ3B1X2Vycm9yLmMKKysrIGIv ZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9ncHVfZXJyb3IuYwpAQCAtMTMzMSw2ICsxMzMxLDgg QEAgc3RhdGljIHZvaWQgaTkxNV9nZW1fcmVjb3JkX3JpbmdzKHN0cnVjdCBkcm1fZGV2aWNlICpk ZXYsCiAJCQllcnEtPnJpbmdidWZmZXJfZ3R0ID0gaTkxNV9nZW1fb2JqX2dndHRfb2Zmc2V0KHJl cXVlc3QtPnJpbmdidWYtPm9iaik7CiAJCQllcnEtPnNjaGVkdWxlcl9zdGF0ZSA9ICFzcWUgPyAn dScgOgogCQkJCWk5MTVfc2NoZWR1bGVyX3F1ZXVlX3N0YXR1c19jaHIoc3FlLT5zdGF0dXMpOwor CQkJaWYgKHJlcXVlc3QtPnNjaGVkdWxlcl9mbGFncyAmIGk5MTVfcmVxX3NmX3VudHJhY2tlZCkK KwkJCQllcnEtPnNjaGVkdWxlcl9zdGF0ZSA9ICdVJzsKIAkJfQogCX0KIH0KZGlmZiAtLWdpdCBh L2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfc2NoZWR1bGVyLmMgYi9kcml2ZXJzL2dwdS9kcm0v aTkxNS9pOTE1X3NjaGVkdWxlci5jCmluZGV4IDU0YjZjMzIuLjhjZDg5ZDIgMTAwNjQ0Ci0tLSBh L2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfc2NoZWR1bGVyLmMKKysrIGIvZHJpdmVycy9ncHUv ZHJtL2k5MTUvaTkxNV9zY2hlZHVsZXIuYwpAQCAtNDU1LDYgKzQ1NSwyNyBAQCBpbnQgaTkxNV9z Y2hlZHVsZXJfcXVldWVfZXhlY2J1ZmZlcihzdHJ1Y3QgaTkxNV9zY2hlZHVsZXJfcXVldWVfZW50 cnkgKnFlKQogCXJldHVybiAwOwogfQogCisvKiBBbiB1bnRyYWNrZWQgcmVxdWVzdCBpcyBiZWlu ZyBsYXVuY2hlZCAuLi4gKi8KK3ZvaWQgaTkxNV9zY2hlZHVsZXJfZmx5X3JlcXVlc3Qoc3RydWN0 IGRybV9pOTE1X2dlbV9yZXF1ZXN0ICpyZXEpCit7CisJc3RydWN0IGRybV9pOTE1X3ByaXZhdGUg KmRldl9wcml2ID0gcmVxLT5pOTE1OworCXN0cnVjdCBpOTE1X3NjaGVkdWxlciAqc2NoZWR1bGVy ID0gZGV2X3ByaXYtPnNjaGVkdWxlcjsKKworCUJVR19PTighc2NoZWR1bGVyKTsKKwlCVUdfT04o IW11dGV4X2lzX2xvY2tlZCgmZGV2X3ByaXYtPmRldi0+c3RydWN0X211dGV4KSk7CisKKwkvKiBU aGlzIHNob3VsZG4ndCBoYXBwZW4gKi8KKwlXQVJOX09OKGk5MTVfc2NoZWR1bGVyX2lzX3Jpbmdf YnVzeShyZXEtPnJpbmcpKTsKKworCS8qIFdlIGRvbid0IGV4cGVjdCB0byBzZWUgbm9kZXMgdGhh dCBhcmUgYWxyZWFkeSB0cmFja2VkICovCisJaWYgKCFXQVJOX09OKHJlcS0+c2NoZWR1bGVyX3Fl KSkgeworCQkvKiBVbnRyYWNrZWQgbm9kZSwgbXVzdCBub3QgYmUgaW5zaWRlIHNjaGVkdWxlciBz dWJtaXNzaW9uIHBhdGggKi8KKwkJV0FSTl9PTigoc2NoZWR1bGVyLT5mbGFnc1tyZXEtPnJpbmct PmlkXSAmIGk5MTVfc2Zfc3VibWl0dGluZykpOworCQlzY2hlZHVsZXItPnN0YXRzW3JlcS0+cmlu Zy0+aWRdLm5vbl9iYXRjaCsrOworCQlyZXEtPnNjaGVkdWxlcl9mbGFncyB8PSBpOTE1X3JlcV9z Zl91bnRyYWNrZWQ7CisJfQorfQorCiBzdGF0aWMgaW50IGk5MTVfc2NoZWR1bGVyX2ZseV9ub2Rl KHN0cnVjdCBpOTE1X3NjaGVkdWxlcl9xdWV1ZV9lbnRyeSAqbm9kZSkKIHsKIAlzdHJ1Y3QgZHJt X2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYgPSBub2RlLT5wYXJhbXMuZGV2LT5kZXZfcHJpdmF0ZTsK ZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfc2NoZWR1bGVyLmggYi9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X3NjaGVkdWxlci5oCmluZGV4IDViODcxYjAuLjdlN2U5NzQg MTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfc2NoZWR1bGVyLmgKKysrIGIv ZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9zY2hlZHVsZXIuaApAQCAtMTk5LDYgKzE5OSw3IEBA IGJvb2wgICAgICAgIGk5MTVfc2NoZWR1bGVyX2lzX3JpbmdfZmx5aW5nKHN0cnVjdCBpbnRlbF9l bmdpbmVfY3MgKnJpbmcpOwogYm9vbCAgICAgICAgaTkxNV9zY2hlZHVsZXJfaXNfcmluZ19wcmVl bXB0aW5nKHN0cnVjdCBpbnRlbF9lbmdpbmVfY3MgKnJpbmcpOwogYm9vbCAgICAgICAgaTkxNV9z Y2hlZHVsZXJfaXNfcmluZ19idXN5KHN0cnVjdCBpbnRlbF9lbmdpbmVfY3MgKnJpbmcpOwogdm9p ZCAgICAgICAgaTkxNV9nZW1fc2NoZWR1bGVyX3dvcmtfaGFuZGxlcihzdHJ1Y3Qgd29ya19zdHJ1 Y3QgKndvcmspOwordm9pZCAgICAgICAgaTkxNV9zY2hlZHVsZXJfZmx5X3JlcXVlc3Qoc3RydWN0 IGRybV9pOTE1X2dlbV9yZXF1ZXN0ICpyZXEpOwogaW50ICAgICAgICAgaTkxNV9zY2hlZHVsZXJf Zmx1c2goc3RydWN0IGludGVsX2VuZ2luZV9jcyAqcmluZywgYm9vbCBpc19sb2NrZWQpOwogaW50 ICAgICAgICAgaTkxNV9zY2hlZHVsZXJfZmx1c2hfc3RhbXAoc3RydWN0IGludGVsX2VuZ2luZV9j cyAqcmluZywKIAkJCQkgICAgICAgdW5zaWduZWQgbG9uZyBzdGFtcCwgYm9vbCBpc19sb2NrZWQp OwotLSAKMS45LjEKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9y ZwpodHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4 Cg==