From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH v2 7/8] drm/i915: Grab execlist spinlock to avoid post-reset concurrency issues. Date: Thu, 22 Oct 2015 19:35:04 +0200 Message-ID: <20151022173504.GE16848@phenom.ffwll.local> References: <1444329100-19189-8-git-send-email-tomas.elf@intel.com> <1445268752-19155-1-git-send-email-tomas.elf@intel.com> <562913B4.1080405@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wi0-f175.google.com (mail-wi0-f175.google.com [209.85.212.175]) by gabe.freedesktop.org (Postfix) with ESMTPS id D337A6E2E8 for ; Thu, 22 Oct 2015 10:35:08 -0700 (PDT) Received: by wikq8 with SMTP id q8so42661814wik.1 for ; Thu, 22 Oct 2015 10:35:07 -0700 (PDT) Content-Disposition: inline In-Reply-To: <562913B4.1080405@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Dave Gordon Cc: Intel-GFX@Lists.FreeDesktop.Org List-Id: intel-gfx@lists.freedesktop.org T24gVGh1LCBPY3QgMjIsIDIwMTUgYXQgMDU6NDk6NTZQTSArMDEwMCwgRGF2ZSBHb3Jkb24gd3Jv dGU6Cj4gT24gMTkvMTAvMTUgMTY6MzIsIFRvbWFzIEVsZiB3cm90ZToKPiA+R3JhYiBleGVjbGlz dCBsb2NrIHdoZW4gY2xlYW5pbmcgdXAgZXhlY2xpc3QgcXVldWVzIGFmdGVyIEdQVSByZXNldCB0 byBhdm9pZAo+ID5jb25jdXJyZW5jeSBwcm9ibGVtcyBiZXR3ZWVuIHRoZSBjb250ZXh0IGV2ZW50 IGludGVycnVwdCBoYW5kbGVyIGFuZCB0aGUgcmVzZXQKPiA+cGF0aCBpbW1lZGlhdGVseSBmb2xs b3dpbmcgYSBHUFUgcmVzZXQuCj4gPgo+ID4qIHYyIChDaHJpcyBXaWxzb24pOgo+ID5EbyBleGVj bGlzdCBjaGVjayBhbmQgdXNlIHNpbXBsZXIgZm9ybSBvZiBzcGlubG9jayBmdW5jdGlvbnMuCj4g Pgo+ID5TaWduZWQtb2ZmLWJ5OiBUb21hcyBFbGYgPHRvbWFzLmVsZkBpbnRlbC5jb20+Cj4gPi0t LQo+ID4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtLmMgfCAyMyArKysrKysrKysrKysr Ky0tLS0tLS0tLQo+ID4gIDEgZmlsZSBjaGFuZ2VkLCAxNCBpbnNlcnRpb25zKCspLCA5IGRlbGV0 aW9ucygtKQo+IAo+IExHVE0uCj4gCj4gUmV2aWV3ZWQtYnk6IERhdmUgR29yZG9uIDxkYXZpZC5z LmdvcmRvbkBpbnRlbC5jb20+CgpRdWV1ZWQgZm9yIC1uZXh0LCB0aGFua3MgZm9yIHRoZSBwYXRj aC4KLURhbmllbAoKPiAKPiA+ZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVf Z2VtLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dlbS5jCj4gPmluZGV4IGU1NzA2MWEu LjJjN2EwYjcgMTAwNjQ0Cj4gPi0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtLmMK PiA+KysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW0uYwo+ID5AQCAtMjc1MywxOCAr Mjc1MywyMyBAQCBzdGF0aWMgdm9pZCBpOTE1X2dlbV9yZXNldF9yaW5nX2NsZWFudXAoc3RydWN0 IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2LAo+ID4gIAkgKiBhcmUgdGhlIG9uZXMgdGhhdCBr ZWVwIHRoZSBjb250ZXh0IGFuZCByaW5nYnVmZmVyIGJhY2tpbmcgb2JqZWN0cwo+ID4gIAkgKiBw aW5uZWQgaW4gcGxhY2UuCj4gPiAgCSAqLwo+ID4tCXdoaWxlICghbGlzdF9lbXB0eSgmcmluZy0+ ZXhlY2xpc3RfcXVldWUpKSB7Cj4gPi0JCXN0cnVjdCBkcm1faTkxNV9nZW1fcmVxdWVzdCAqc3Vi bWl0X3JlcTsKPiA+Cj4gPi0JCXN1Ym1pdF9yZXEgPSBsaXN0X2ZpcnN0X2VudHJ5KCZyaW5nLT5l eGVjbGlzdF9xdWV1ZSwKPiA+LQkJCQlzdHJ1Y3QgZHJtX2k5MTVfZ2VtX3JlcXVlc3QsCj4gPi0J CQkJZXhlY2xpc3RfbGluayk7Cj4gPi0JCWxpc3RfZGVsKCZzdWJtaXRfcmVxLT5leGVjbGlzdF9s aW5rKTsKPiA+KwlpZiAoaTkxNS5lbmFibGVfZXhlY2xpc3RzKSB7Cj4gPisJCXNwaW5fbG9ja19p cnEoJnJpbmctPmV4ZWNsaXN0X2xvY2spOwo+ID4rCQl3aGlsZSAoIWxpc3RfZW1wdHkoJnJpbmct PmV4ZWNsaXN0X3F1ZXVlKSkgewo+ID4rCQkJc3RydWN0IGRybV9pOTE1X2dlbV9yZXF1ZXN0ICpz dWJtaXRfcmVxOwo+ID4KPiA+LQkJaWYgKHN1Ym1pdF9yZXEtPmN0eCAhPSByaW5nLT5kZWZhdWx0 X2NvbnRleHQpCj4gPi0JCQlpbnRlbF9scl9jb250ZXh0X3VucGluKHN1Ym1pdF9yZXEpOwo+ID4r CQkJc3VibWl0X3JlcSA9IGxpc3RfZmlyc3RfZW50cnkoJnJpbmctPmV4ZWNsaXN0X3F1ZXVlLAo+ ID4rCQkJCQlzdHJ1Y3QgZHJtX2k5MTVfZ2VtX3JlcXVlc3QsCj4gPisJCQkJCWV4ZWNsaXN0X2xp bmspOwo+ID4rCQkJbGlzdF9kZWwoJnN1Ym1pdF9yZXEtPmV4ZWNsaXN0X2xpbmspOwo+ID4KPiA+ LQkJaTkxNV9nZW1fcmVxdWVzdF91bnJlZmVyZW5jZShzdWJtaXRfcmVxKTsKPiA+KwkJCWlmIChz dWJtaXRfcmVxLT5jdHggIT0gcmluZy0+ZGVmYXVsdF9jb250ZXh0KQo+ID4rCQkJCWludGVsX2xy X2NvbnRleHRfdW5waW4oc3VibWl0X3JlcSk7Cj4gPisKPiA+KwkJCWk5MTVfZ2VtX3JlcXVlc3Rf dW5yZWZlcmVuY2Uoc3VibWl0X3JlcSk7Cj4gPisJCX0KPiA+KwkJc3Bpbl91bmxvY2tfaXJxKCZy aW5nLT5leGVjbGlzdF9sb2NrKTsKPiA+ICAJfQo+ID4KPiA+ICAJLyoKPiA+Cj4gCj4gX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KPiBJbnRlbC1nZnggbWFp bGluZyBsaXN0Cj4gSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwo+IGh0dHA6Ly9saXN0 cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngKCi0tIApEYW5pZWwg VmV0dGVyClNvZnR3YXJlIEVuZ2luZWVyLCBJbnRlbCBDb3Jwb3JhdGlvbgpodHRwOi8vYmxvZy5m ZndsbC5jaApfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJ bnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0 cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=