From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Gordon Subject: [PATCH v2] drm/i915: recheck ringspace after wait+retire Date: Thu, 18 Dec 2014 17:03:41 +0000 Message-ID: <1418922221-18789-1-git-send-email-david.s.gordon@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 1D87D89BFF for ; Thu, 18 Dec 2014 09:11:22 -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 List-Id: intel-gfx@lists.freedesktop.org SW4ge2ludGVsLGxvZ2ljYWx9X3Jpbmdfd2FpdF9yZXF1ZXN0KCksIHdlIHRyeSB0byBmaW5kIGEg cmVxdWVzdAp3aG9zZSBjb21wbGV0aW9uIHdpbGwgcmVsZWFzZSB0aGUgYW1vdW50IG9mIHJpbmcg c3BhY2UgcmVxdWlyZWQuCklmIHdlIGZpbmQgc3VjaCBhIHJlcXVlc3QsIHdlIHdhaXQgZm9yIGl0 LCBhbmQgdGhlbiByZXRpcmUgaXQsIGluCnRoZSBleHBlY3RhdGlvbiB0aGF0IHdlIHdpbGwgbm93 IGhhdmUgYXQgbGVhc3QgdGhlIHJlcXVpcmVkIGFtb3VudApvZiBmcmVlIHNwYWNlIGluIHRoZSBy aW5nLiBCdXQgaXQncyBnb29kIHRvIGNoZWNrIHRoYXQgdGhpcyBoYXMKYWN0dWFsbHkgaGFwcGVu ZWQsIHNvIHdlIGNhbiBiYWNrIG91dCB3aXRoIGEgbWVhbmluZ2Z1bCBlcnJvcgpjb2RlIGlmIHNv bWV0aGluZyB1bmV4cGVjdGVkIGhhcyBoYXBwZW5lZCwgc3VjaCBhcyB3YWl0X3JlcXVlc3QKcmV0 dXJuaW5nIGVhcmx5LgoKVGhpcyBjb2RlIHdhcyBhbHJlYWR5IGluIHRoZSBleGVjbGlzdCB2ZXJz aW9uLCBzbyB0aGUgY2hhbmdlIHRvCmludGVsX2xyYy5jIGlzIGp1c3QgdG8gYWRkIGEgY29tbWVu dDsgYnV0IHdlIHdhbnQgdGhlIHNhbWUgY2hlY2sKaW4gdGhlIGxlZ2FjeSByaW5nYnVmZmVyIG1v ZGUgdG9vLgoKdjI6IHJlYmFzZSB0byBsYXRlc3QgZHJtLWludGVsLW5pZ2h0bHkKClNpZ25lZC1v ZmYtYnk6IERhdmUgR29yZG9uIDxkYXZpZC5zLmdvcmRvbkBpbnRlbC5jb20+Ci0tLQogZHJpdmVy cy9ncHUvZHJtL2k5MTUvaW50ZWxfbHJjLmMgICAgICAgIHwgICAgOSArKysrKysrKysKIGRyaXZl cnMvZ3B1L2RybS9pOTE1L2ludGVsX3JpbmdidWZmZXIuYyB8ICAgMTIgKysrKysrKysrKystCiAy IGZpbGVzIGNoYW5nZWQsIDIwIGluc2VydGlvbnMoKyksIDEgZGVsZXRpb24oLSkKCmRpZmYgLS1n aXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9scmMuYyBiL2RyaXZlcnMvZ3B1L2RybS9p OTE1L2ludGVsX2xyYy5jCmluZGV4IDkwODY3YjIuLjMyOWNiNWMgMTAwNjQ0Ci0tLSBhL2RyaXZl cnMvZ3B1L2RybS9pOTE1L2ludGVsX2xyYy5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2lu dGVsX2xyYy5jCkBAIC05NTUsNiArOTU1LDE1IEBAIHN0YXRpYyBpbnQgbG9naWNhbF9yaW5nX3dh aXRfcmVxdWVzdChzdHJ1Y3QgaW50ZWxfcmluZ2J1ZmZlciAqcmluZ2J1ZiwKIAogCWk5MTVfZ2Vt X3JldGlyZV9yZXF1ZXN0c19yaW5nKHJpbmcpOwogCisJLyoKKwkgKiBBY2NvcmRpbmcgdG8gb3Vy IGNhbGN1bGF0aW9uIGFib3ZlLCByZXRpcmluZyB0aGUgcmVxdWVzdCB3ZSBqdXN0CisJICogd2Fp dGVkIGZvciBzaG91bGQgaGF2ZSByZXN1bHRlZCBpbiB0aGVyZSBiZWluZyBlbm91Z2ggc3BhY2Ug aW4KKwkgKiB0aGUgcmluZ2J1ZmZlcjsgYnV0IGxldCdzIGNoZWNrLgorCSAqCisJICogSWYgdGhl cmUgaXMgbm90IG5vdyBlbm91Z2ggc3BhY2UsIHNvbWV0aGluZyBoYXMgZ29uZSBob3JyaWJseSB3 b3JuZworCSAqIChzdWNoIGFzIHdhaXRfcmVxdWVzdCByZXR1cm5pbmcgZWFybHksIGJ1dCB3aXRo IG5vIGVycm9yLCBvcgorCSAqIHJldGlyZV9yZXF1ZXN0cyBmYWlsaW5nIHRvIHJldGlyZSB0aGUg cmVxdWVzdCB3ZSBleHBlY3RlZCBpdCB0bykuCisJICovCiAJcmV0dXJuIGludGVsX3Jpbmdfc3Bh Y2UocmluZ2J1ZikgPj0gYnl0ZXMgPyAwIDogLUVOT1NQQzsKIH0KIApkaWZmIC0tZ2l0IGEvZHJp dmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcmluZ2J1ZmZlci5jIGIvZHJpdmVycy9ncHUvZHJtL2k5 MTUvaW50ZWxfcmluZ2J1ZmZlci5jCmluZGV4IDAxOGEzN2UuLmM5NWJmM2EgMTAwNjQ0Ci0tLSBh L2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3JpbmdidWZmZXIuYworKysgYi9kcml2ZXJzL2dw dS9kcm0vaTkxNS9pbnRlbF9yaW5nYnVmZmVyLmMKQEAgLTE5MzIsNiArMTkzMiw3IEBAIHN0YXRp YyBpbnQgaW50ZWxfcmluZ193YWl0X3JlcXVlc3Qoc3RydWN0IGludGVsX2VuZ2luZV9jcyAqcmlu ZywgaW50IG4pCiAJCXJldHVybiAwOwogCiAJbGlzdF9mb3JfZWFjaF9lbnRyeShyZXF1ZXN0LCAm cmluZy0+cmVxdWVzdF9saXN0LCBsaXN0KSB7CisJCS8qIFdvdWxkIGNvbXBsZXRpb24gb2YgdGhp cyByZXF1ZXN0IGZyZWUgZW5vdWdoIHNwYWNlPyAqLwogCQlpZiAoX19pbnRlbF9yaW5nX3NwYWNl KHJlcXVlc3QtPnRhaWwsIHJpbmdidWYtPnRhaWwsCiAJCQkJICAgICAgIHJpbmdidWYtPmVmZmVj dGl2ZV9zaXplKSA+PSBuKSB7CiAJCQlicmVhazsKQEAgLTE5NDcsNyArMTk0OCwxNiBAQCBzdGF0 aWMgaW50IGludGVsX3Jpbmdfd2FpdF9yZXF1ZXN0KHN0cnVjdCBpbnRlbF9lbmdpbmVfY3MgKnJp bmcsIGludCBuKQogCiAJaTkxNV9nZW1fcmV0aXJlX3JlcXVlc3RzX3JpbmcocmluZyk7CiAKLQly ZXR1cm4gMDsKKwkvKgorCSAqIEFjY29yZGluZyB0byBvdXIgY2FsY3VsYXRpb24gYWJvdmUsIHJl dGlyaW5nIHRoZSByZXF1ZXN0IHdlIGp1c3QKKwkgKiB3YWl0ZWQgZm9yIHNob3VsZCBoYXZlIHJl c3VsdGVkIGluIHRoZXJlIGJlaW5nIGVub3VnaCBzcGFjZSBpbgorCSAqIHRoZSByaW5nYnVmZmVy OyBidXQgbGV0J3MgY2hlY2suCisJICoKKwkgKiBJZiB0aGVyZSBpcyBub3Qgbm93IGVub3VnaCBz cGFjZSwgc29tZXRoaW5nIGhhcyBnb25lIGhvcnJpYmx5IHdvcm5nCisJICogKHN1Y2ggYXMgd2Fp dF9yZXF1ZXN0IHJldHVybmluZyBlYXJseSwgYnV0IHdpdGggbm8gZXJyb3IsIG9yCisJICogcmV0 aXJlX3JlcXVlc3RzIGZhaWxpbmcgdG8gcmV0aXJlIHRoZSByZXF1ZXN0IHdlIGV4cGVjdGVkIGl0 IHRvKS4KKwkgKi8KKwlyZXR1cm4gaW50ZWxfcmluZ19zcGFjZShyaW5nYnVmKSA+PSBuID8gMCA6 IC1FTk9TUEM7CiB9CiAKIHN0YXRpYyBpbnQgcmluZ193YWl0X2Zvcl9zcGFjZShzdHJ1Y3QgaW50 ZWxfZW5naW5lX2NzICpyaW5nLCBpbnQgbikKLS0gCjEuNy45LjUKCl9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50 ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3Jn L21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==