From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrzej Hajda Subject: Re: Possible fb ref count issue with drm_plane_force_disable() Date: Tue, 15 Apr 2014 12:29:13 +0200 Message-ID: <534D09F9.2030608@samsung.com> References: <534684E8.9000203@ti.com> <20140411115054.GC18465@intel.com> <534B9FC0.2020700@ti.com> <534CF904.1070105@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mailout3.w1.samsung.com (mailout3.w1.samsung.com [210.118.77.13]) by gabe.freedesktop.org (Postfix) with ESMTP id B38B66E1CA for ; Tue, 15 Apr 2014 03:29:19 -0700 (PDT) Received: from eucpsbgm1.samsung.com (unknown [203.254.199.244]) by mailout3.w1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N4200MAOIGSN4A0@mailout3.w1.samsung.com> for dri-devel@lists.freedesktop.org; Tue, 15 Apr 2014 11:29:16 +0100 (BST) In-reply-to: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Rob Clark , Tomi Valkeinen Cc: dri-devel List-Id: dri-devel@lists.freedesktop.org T24gMDQvMTUvMjAxNCAxMjoxMCBQTSwgUm9iIENsYXJrIHdyb3RlOgo+IE9uIFR1ZSwgQXByIDE1 LCAyMDE0IGF0IDU6MTYgQU0sIFRvbWkgVmFsa2VpbmVuIDx0b21pLnZhbGtlaW5lbkB0aS5jb20+ IHdyb3RlOgo+PiBPbiAxNC8wNC8xNCAxMTo0MywgVG9taSBWYWxrZWluZW4gd3JvdGU6Cj4+PiBP biAxMS8wNC8xNCAxNDo1MCwgVmlsbGUgU3lyasOkbMOkIHdyb3RlOgo+Pj4KPj4+Pj4gU28gdGhl IGV4cGxpY2l0IHVucmVmIGRvbmUgYnkgZHJtX3BsYW5lX2ZvcmNlX2Rpc2FibGUoKSBzZWVtcyBh IGJpdCBvdXQKPj4+Pj4gb2YgcGxhY2UuIEkgY2FuJ3QgZmlndXJlIG91dCB3aGljaCBkcm1fZnJh bWVidWZmZXJfcmVmZXJlbmNlKCkgd291bGQgYmUKPj4+Pj4gdGhlIG1hdGNoaW5nIG9uZSBmb3Ig dGhlIHVucmVmIGRvbmUgYnkgZHJtX3BsYW5lX2ZvcmNlX2Rpc2FibGUoKS4KPj4+Pj4KPj4+Pj4g QW55IGlkZWFzIHdoYXQgcmVmIGlzIHRoYXQ/IE9yIGlzIHRoZSBfX2RybV9mcmFtZWJ1ZmZlcl91 bnJlZmVyZW5jZSgpCj4+Pj4+IGV4dHJhIGluIGRybV9wbGFuZV9mb3JjZV9kaXNhYmxlKCk/Cj4+ Pj4KPj4+PiBUaGF0J3MgdGhlIHJlZmVyZW5jZSB0aGF0IHdhcyB0YWtlbiBieSB0aGUgZHJtX21v ZGVfc2V0cGxhbmUoKSB3aGVuIGl0Cj4+Pj4gc3VjY2VzZnVsbHkgY2FsbGVkIHRoZSAudXBkYXRl X3BsYW5lKCkgaG9vay4KPj4+Cj4+PiBCdXQgZHJtX21vZGVfc2V0cGxhbmUoKSBpcyBjYWxsZWQg dmlhIERSTV9JT0NUTF9NT0RFX1NFVFBMQU5FLCB3aGljaCBpcwo+Pj4gb25seSB1c2VkIGZvciAi cHJvcGVyIiBwbGFuZXMsIG5vdCBmb3IgY3J0YyBwcmltYXJ5IHBsYW5lcywgcmlnaHQ/Cj4+Pgo+ Pj4gQXQgbGVhc3QgSSBkb24ndCBzZWUgZHJtX21vZGVfc2V0cGxhbmUoKSBpbiBteSBzdGFjayB0 cmFjZXMsIGFuZCBnaXQKPj4+IGdyZXAgZG9lc24ndCBzaG93IGl0IGNhbGxlZCB2aWEgYW55IG90 aGVyIG1lYW5zIHRoYW4gaW9jdGwuCj4+Pgo+Pj4gSSBhbSBub3QgdXNpbmcgYW55IHBsYW5lcyBm cm9tIG15IGFwcCwganVzdCB0aGUgY3J0YyBhbmQgKGluZGlyZWN0bHkpCj4+PiBpdHMgcHJpbWFy eSBwbGFuZS4KPj4KPj4gU28gaGVyZSdzIGEgc3VtbWFyeSBvZiB0aGUgZmIgcmVmcyBhbmQgdW5y ZWZzLiBJdCBzdGlsbCBzZWVtcyB0byBtZSB0aGF0IHRoZQo+PiBkcm1fcGxhbmVfZm9yY2VfZGlz YWJsZSBkb2VzIGFuIGV4dHJhIHVucmVmLiBFaXRoZXIgdGhhdCwgb3Igb21hcGRybSBpcyBtaXNz aW5nCj4+IHNvbWV0aGluZyB0aGF0IHRha2VzIHRoZSBtYXRjaGluZyByZWZlcmVuY2UuCj4+Cj4+ IEEgbGluZSBsaWtlIHRoaXMgaW4gdGhlIHN1bW1hcnkgYmVsb3c6Cj4+Cj4+IDIpIHJlZjM2LzMg ICAgICBkcm1fbW9kZV9zZXRjcnRjIC8gZHJtX2ZyYW1lYnVmZmVyX2xvb2t1cAo+Pgo+PiBNZWFu cyB0aGF0ICIyIiBpcyB0aGUgbnVtYmVyIEkgYXNzaWduZWQgdG8gdGhhdCByZWYsIGFuZCB0aGVy ZSdzIGEgbWF0Y2hpbmcKPj4gdW5yZWYgd2l0aCAyKSBwcmVmaXggbGF0ZXIuIHJlZjM2LzIgbWVh bnMgdGhhdCBGQiBJRCAzNiB3YXMgcmVmZXJlbmNlZCwgYW5kIHJlZgo+PiBjb3VudCBpcyAzLiBB bmQgdGhlIHJlc3Qgb2YgdGhlIGxpbmUgc2hvd3Mgcm91Z2ggaWRlYSBvZiB0aGUgc3RhY2sgdHJh Y2Ugd2hlcmUKPj4gdGhlIHJlZi91bnJlZiBoYXBwZW5zLgo+Pgo+Pgo+PiAjIERSTV9JT0NUTF9N T0RFX0FEREZCIDIKPj4gMCkgICAgICAgICAgICAgIGtyZWZfaW5pdAo+PiAxKSByZWYzNi8yICAg ICAgZHJtX21vZGVfYWRkZmIyCj4+Cj4+ICMgRFJNX0lPQ1RMX01PREVfU0VUQ1JUQwo+PiAyKSBy ZWYzNi8zICAgICAgZHJtX21vZGVfc2V0Y3J0YyAvIGRybV9mcmFtZWJ1ZmZlcl9sb29rdXAKPj4g MykgcmVmMzYvNCAgICAgIGRybV9tb2RlX3NldGNydGMgLyBkcm1fbW9kZV9zZXRfY29uZmlnX2lu dGVybmFsCj4+IDIpIHVucmVmMzYvMyAgICBkcm1fbW9kZV9zZXRjcnRjCj4+Cj4+ICMgcGluIG5l dyBmYgo+PiA0KSByZWYzNi80ICAgICAgYXBwbHlfd29ya2VyIC8gb21hcF9wbGFuZV9wcmVfYXBw bHkKPj4KPj4KPj4gIyBCUkVBSwo+Pgo+Pgo+PiAjIFJFTEVBU0UKPj4gMSkgdW5yZWYzNi8zICAg IGRybV9yZWxlYXNlIC8gZHJtX2ZiX3JlbGVhc2UgLyBfX2RybV9mcmFtZWJ1ZmZlcl91bnJlZ2lz dGVyCj4+IDMpIHVucmVmMzYvMiAgICBkcm1fcmVsZWFzZSAvIGRybV9mYl9yZWxlYXNlIC8gZHJt X2ZyYW1lYnVmZmVyX3JlbW92ZSAvIGRybV9tb2RlX3NldF9jb25maWdfaW50ZXJuYWwKPj4gPykg dW5yZWYzNi8xICAgIGRybV9yZWxlYXNlIC8gZHJtX2ZiX3JlbGVhc2UgLyBkcm1fZnJhbWVidWZm ZXJfcmVtb3ZlIC8gZHJtX3BsYW5lX2ZvcmNlX2Rpc2FibGUKPj4gMCkgdW5yZWYzNi8wICAgIGRy bV9yZWxlYXNlIC8gZHJtX2ZiX3JlbGVhc2UgLyBkcm1fZnJhbWVidWZmZXJfcmVtb3ZlCj4+Cj4+ ICMgdW5waW4gb2xkIGZiCj4+IDQpIHVucmVmMzYvLTEgICBmbGlwX3dvcmtlciAvIHVucGluX3dv cmtlciAvIGRybV9mcmFtZWJ1ZmZlcl91bnJlZmVyZW5jZQo+Pgo+IAo+IE9rLCBzb3JyeSB0byB0 YWtlIHNvIGxvbmcgdG8gY29tbWVudCBvbiB0aGUgdGhyZWFkLCBpdCB0b29rIG1lIGEgd2hpbGUK PiBiZWZvcmUgSSBoYWQgYW4gaWRlYSA7LSkKPiAKPiBzbywgd2hhdCB0cmlnZ2VycyB0aGlzIGlz IHRoYXQgcHJldmlvdXNseSBkcm1fZnJhbWVidWZmZXJfcmVtb3ZlKCkgZGlkCj4gbm90IHByb2Nl c3MgcHJpdmF0ZSBwbGFuZXMuICBCdXQgbm93IHRoZSBmYiBzaG93cyB1cCBhdHRhY2hlZCB0byBh Cj4gcGxhbmUgYXMgd2VsbCwgdGhlIGNydGMncyBwcmltYXJ5IHBsYW5lLgo+IAo+IEkgc3VzcGVj dCB0aGVyZSBpcyBzb21lIHdheSBpbiBvbWFwX2NydGMgdGhhdCBJIG11c3QgaGF2ZSBhc3N1bWVk IHRoZQo+IHJlZiB0aGUgY3J0YyBoZWxkIHRvIHRoZSBmYiB3YXMgc3VmZmljaWVudCBmb3IgdGhl IHBsYW5lIHRvIGhvbGQgdGhlCj4gc2FtZSByZWYuICBXaGljaCBpcyBubyBsb25nZXIgdGhlIGNh c2UuICBTbyBzb21ld2hlcmUgYmV0d2Vlbgo+IG9tYXBfY3J0YyBhbmQgaXQncyBwcmltYXJ5IHBs YW5lLCB0aGVyZSBub3cgbmVlZHMgdG8gYmUgYW4gZXh0cmEgbGV2ZWwKPiBvZiByZWYvdW5yZWYu ICBTbyByZWYgc2hvdWxkIGhhdmUgZ29uZSB1cCB0byA1LgoKSSBoYXZlIGV4cGVyaWVuY2VkIHNp bWlsYXIgcHJvYmxlbSB3aXRoIGV4eW5vc19kcm0uIEkgaGF2ZSBmb3VuZCB0aGF0CmluIGV4eW5v c19kcm1fY3J0Y19tb2RlX3NldCB0aGVyZSBpcyBsaW5lOgoKCXBsYW5lLT5mYiA9IGNydGMtPnBy aW1hcnktPmZiOwoKd2l0aG91dCBkcm1fZnJhbWVidWZmZXJfcmVmZXJlbmNlLgpJbiByZXN1bHQg ZHJtX2ZyYW1lYnVmZmVyX3JlbW92ZSBkZXJlZmVyZW5jZXMgaXQgdHdpY2U6Ci0gYmVjYXVzZSBv ZiBjcnRjLT5wcmltYXJ5LT5mYiA9PSBmYiwKLSBiZWNhdXNlIG9mIGZiIGJlaW5nIG9uIGRldi0+ bW9kZV9jb25maWcucGxhbmVfbGlzdAoKSSBhbSBub3Qgc3VyZSBob3cgaXQgc2hvdWxkIGJlIHNv bHZlZCBwcm9wZXJseSwgYnV0IGFkZGluZwpkcm1fZnJhbWVidWZmZXJfcmVmZXJlbmNlIGluIGV4 eW5vc19kcm1fY3J0Y19tb2RlX3NldCBoZWxwcy4KCkluIG9tYXBfcGxhbmVfbW9kZV9zZXQgdGhl cmUgaXMgYWxzbyBhc3NpZ25tZW50OgoKCXBsYW5lLT5mYiA9IGZiCgp3aXRob3V0IGRybV9mcmFt ZWJ1ZmZlcl9yZWZlcmVuY2Ugc28gbWF5YmUgaXQgY2FuIGJlIHNvbHZlZCB0aGUgc2FtZSB3YXku CgpSZWdhcmRzCkFuZHJ6ZWoKCj4gCj4gQlIsCj4gLVIKPiAKPiAKPj4KPj4gQWxsIHRoZSBvdGhl ciB1bnJlZnMgSSBjYW4gZXhwbGFpbiwgZXhjZXB0IHRoZSBkcm1fcGxhbmVfZm9yY2VfZGlzYWJs ZSgpIG9uZS4KPj4KPj4gIFRvbWkKPj4KPj4KPiBfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwo+IGRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKPiBkcmktZGV2ZWxA bGlzdHMuZnJlZWRlc2t0b3Aub3JnCj4gaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWls bWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo+IAoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMu ZnJlZWRlc2t0b3Aub3JnCmh0dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0 aW5mby9kcmktZGV2ZWwK