From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= <ville.syrjala@linux.intel.com>
Subject: Re: [PATCH v2] drm/i915: Apply missed interrupt after
 reset w/a to all ringbuffer gen
Date: Thu, 13 Dec 2018 13:59:28 +0200
Message-ID: <20181213115928.GI9144@intel.com>
References: <20181213085359.31541-1-chris@chris-wilson.co.uk>
 <20181213110105.19076-1-chris@chris-wilson.co.uk>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Received: from mga03.intel.com (mga03.intel.com [134.134.136.65])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 798386EDF2
 for <intel-gfx@lists.freedesktop.org>; Thu, 13 Dec 2018 11:59:31 +0000 (UTC)
Content-Disposition: inline
In-Reply-To: <20181213110105.19076-1-chris@chris-wilson.co.uk>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/intel-gfx>
List-Post: <mailto:intel-gfx@lists.freedesktop.org>
List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe>
Errors-To: intel-gfx-bounces@lists.freedesktop.org
Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
To: Chris Wilson <chris@chris-wilson.co.uk>
Cc: intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org

T24gVGh1LCBEZWMgMTMsIDIwMTggYXQgMTE6MDE6MDVBTSArMDAwMCwgQ2hyaXMgV2lsc29uIHdy
b3RlOgo+IEhhdmluZyBjb21wbGV0ZWQgYSB0ZXN0IHJ1biBvZiBnZW1fZWlvIGFjcm9zcyBhbGwg
bWFjaGluZXMgaW4gQ0kgd2UgYWxzbwo+IG9ic2VydmUgdGhlIHBoZW5vbWVub24gKG9mIGxvc3Qg
aW50ZXJydXB0cyBhZnRlciByZXNldHRpbmcgdGhlIEdQVSkgb24KPiBnZW4zIG1hY2hpbmVzIGFz
IHdlbGwgYXMgdGhlIHByZXZpb3VzbHkgc2lnaHRlZCBnZW42L2dlbjcuIExldCdzIGFwcGx5Cj4g
dGhlIHNhbWUgSFdTVEFNIHdvcmthcm91bmQgdGhhdCB3YXMgZWZmZWN0aXZlIGZvciBnZW42KyBm
b3IgYWxsLCBhcwo+IGFsdGhvdWdoIHdlIGhhdmVuJ3Qgc2VlbiB0aGUgc2FtZSBmYWlsdXJlIG9u
IGdlbjQvNSBpdCBzZWVtcyBwcnVkZW50IHRvCj4ga2VlcCB0aGUgY29kZSB0aGUgc2FtZS4KPiAK
PiBBcyBhIGNvbnNlcXVlbmNlIHdlIGNhbiByZW1vdmUgdGhlIGV4dHJhIHNldHRpbmcgb2YgSFdT
VEFNIGFuZCBhcHBseSB0aGUKPiByZWdpc3RlciBmcm9tIGEgc2luZ2xlIHNpdGUuCj4gCj4gdjI6
IERlbGF6eSBhbmQgbW92ZSB0aGUgSFdTVEFNIGludG8gaXRzIG93biBmdW5jdGlvbgo+IAo+IFJl
ZmVyZW5jZXM6IGh0dHBzOi8vYnVncy5mcmVlZGVza3RvcC5vcmcvc2hvd19idWcuY2dpP2lkPTEw
ODczNQo+IFNpZ25lZC1vZmYtYnk6IENocmlzIFdpbHNvbiA8Y2hyaXNAY2hyaXMtd2lsc29uLmNv
LnVrPgo+IENjOiBUdnJ0a28gVXJzdWxpbiA8dHZydGtvLnVyc3VsaW5AaW50ZWwuY29tPgo+IC0t
LQo+ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2lycS5jICAgICAgICAgfCAgOSAtLS0tLS0K
PiAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcmluZ2J1ZmZlci5jIHwgNDEgKysrKysrKysr
KysrKysrKy0tLS0tLS0tLQo+ICAyIGZpbGVzIGNoYW5nZWQsIDI3IGluc2VydGlvbnMoKyksIDIz
IGRlbGV0aW9ucygtKQo+IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1
X2lycS5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9pcnEuYwo+IGluZGV4IGUyZGFjOWI1
ZjRjZS4uMGM3ZmM5ODkwODkxIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5
MTVfaXJxLmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2lycS5jCj4gQEAgLTM1
ODYsOSArMzU4Niw2IEBAIHN0YXRpYyB2b2lkIGlyb25sYWtlX2lycV9yZXNldChzdHJ1Y3QgZHJt
X2RldmljZSAqZGV2KQo+ICB7Cj4gIAlzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYg
PSB0b19pOTE1KGRldik7Cj4gIAo+IC0JaWYgKElTX0dFTihkZXZfcHJpdiwgNSkpCj4gLQkJSTkx
NV9XUklURShIV1NUQU0sIDB4ZmZmZmZmZmYpOwo+IC0KPiAgCUdFTjNfSVJRX1JFU0VUKERFKTsK
PiAgCWlmIChJU19HRU4oZGV2X3ByaXYsIDcpKQo+ICAJCUk5MTVfV1JJVEUoR0VON19FUlJfSU5U
LCAweGZmZmZmZmZmKTsKPiBAQCAtNDM2OCw4ICs0MzY1LDYgQEAgc3RhdGljIHZvaWQgaTh4eF9p
cnFfcmVzZXQoc3RydWN0IGRybV9kZXZpY2UgKmRldikKPiAgCj4gIAlpOXh4X3BpcGVzdGF0X2ly
cV9yZXNldChkZXZfcHJpdik7Cj4gIAo+IC0JSTkxNV9XUklURTE2KEhXU1RBTSwgMHhmZmZmKTsK
PiAtCj4gIAlHRU4yX0lSUV9SRVNFVCgpOwo+ICB9Cj4gIAo+IEBAIC00NTM3LDggKzQ1MzIsNiBA
QCBzdGF0aWMgdm9pZCBpOTE1X2lycV9yZXNldChzdHJ1Y3QgZHJtX2RldmljZSAqZGV2KQo+ICAK
PiAgCWk5eHhfcGlwZXN0YXRfaXJxX3Jlc2V0KGRldl9wcml2KTsKPiAgCj4gLQlJOTE1X1dSSVRF
KEhXU1RBTSwgMHhmZmZmZmZmZik7Cj4gLQo+ICAJR0VOM19JUlFfUkVTRVQoKTsKPiAgfQo+ICAK
PiBAQCAtNDY0OCw4ICs0NjQxLDYgQEAgc3RhdGljIHZvaWQgaTk2NV9pcnFfcmVzZXQoc3RydWN0
IGRybV9kZXZpY2UgKmRldikKPiAgCj4gIAlpOXh4X3BpcGVzdGF0X2lycV9yZXNldChkZXZfcHJp
dik7Cj4gIAo+IC0JSTkxNV9XUklURShIV1NUQU0sIDB4ZmZmZmZmZmYpOwo+IC0KPiAgCUdFTjNf
SVJRX1JFU0VUKCk7Cj4gIH0KClNvIHdlJ3JlIG5vdCB3b3JyaWVkIGFib3V0IGVuYWJsaW5nIGlu
dGVycnVwdHMgYW5kIGhhdmluZwpzb21ldGhpbmcgdW5tYXNrZWQgaW4gSFdTVEFNIGJ5IGFjY2lk
ZW50IGJlZm9yZSB3ZSBoYXZlIHRoZQpzdGF0dXMgcGFnZSBzZXQgdXA/Cgo+ICAKPiBkaWZmIC0t
Z2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcmluZ2J1ZmZlci5jIGIvZHJpdmVycy9n
cHUvZHJtL2k5MTUvaW50ZWxfcmluZ2J1ZmZlci5jCj4gaW5kZXggZmRlY2EyYjg3N2M5Li4xMGU3
YjdhNmJhODggMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcmluZ2J1
ZmZlci5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcmluZ2J1ZmZlci5jCj4g
QEAgLTM5MywxMiArMzkzLDM4IEBAIHN0YXRpYyB2b2lkIHJpbmdfc2V0dXBfcGh5c19zdGF0dXNf
cGFnZShzdHJ1Y3QgaW50ZWxfZW5naW5lX2NzICplbmdpbmUpCj4gIAlJOTE1X1dSSVRFKEhXU19Q
R0EsIGFkZHIpOwo+ICB9Cj4gIAo+ICtzdGF0aWMgdm9pZCBzZXRfaHdzdGFtX21hc2soc3RydWN0
IGludGVsX2VuZ2luZV9jcyAqZW5naW5lKQo+ICt7Cj4gKwlzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0
ZSAqZGV2X3ByaXYgPSBlbmdpbmUtPmk5MTU7Cj4gKwlpOTE1X3JlZ190IGh3c3RhbSA9IFJJTkdf
SFdTVEFNKGVuZ2luZS0+bW1pb19iYXNlKTsKPiArCXUzMiBtYXNrID0gfjB1Owo+ICsKPiArCS8q
Cj4gKwkgKiBLZWVwIHRoZSByZW5kZXIgaW50ZXJydXB0IHVubWFza2VkIGFzIHRoaXMgcGFwZXJz
IG92ZXIKPiArCSAqIGxvc3QgaW50ZXJydXB0cyBmb2xsb3dpbmcgYSByZXNldC4KPiArCSAqLwo+
ICsJaWYgKGVuZ2luZS0+aWQgPT0gUkNTKSB7Cj4gKwkJaWYgKElOVEVMX0dFTihkZXZfcHJpdikg
Pj0gNikKPiArCQkJbWFzayAmPSB+QklUKDApOwo+ICsJCWVsc2UKPiArCQkJbWFzayAmPSB+STkx
NV9VU0VSX0lOVEVSUlVQVDsKPiArCX0KPiArCj4gKwlpZiAoSU5URUxfR0VOKGRldl9wcml2KSA+
PSAzKQo+ICsJCUk5MTVfV1JJVEUoaHdzdGFtLCBtYXNrKTsKPiArCWVsc2UKPiArCQlJOTE1X1dS
SVRFMTYoaHdzdGFtLCBtYXNrKTsKPiArfQo+ICsKPiAgc3RhdGljIHZvaWQgaW50ZWxfcmluZ19z
ZXR1cF9zdGF0dXNfcGFnZShzdHJ1Y3QgaW50ZWxfZW5naW5lX2NzICplbmdpbmUpCj4gIHsKPiAg
CXN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiA9IGVuZ2luZS0+aTkxNTsKPiAgCWk5
MTVfcmVnX3QgbW1pbzsKPiAgCj4gLQkvKiBUaGUgcmluZyBzdGF0dXMgcGFnZSBhZGRyZXNzZXMg
YXJlIG5vIGxvbmdlciBuZXh0IHRvIHRoZSByZXN0IG9mCj4gKwlzZXRfaHdzdGFtX21hc2soZW5n
aW5lKTsKPiArCj4gKwkvKgo+ICsJICogVGhlIHJpbmcgc3RhdHVzIHBhZ2UgYWRkcmVzc2VzIGFy
ZSBubyBsb25nZXIgbmV4dCB0byB0aGUgcmVzdCBvZgo+ICAJICogdGhlIHJpbmcgcmVnaXN0ZXJz
IGFzIG9mIGdlbjcuCj4gIAkgKi8KPiAgCWlmIChJU19HRU4oZGV2X3ByaXYsIDcpKSB7Cj4gQEAg
LTQyOCwxOSArNDU0LDYgQEAgc3RhdGljIHZvaWQgaW50ZWxfcmluZ19zZXR1cF9zdGF0dXNfcGFn
ZShzdHJ1Y3QgaW50ZWxfZW5naW5lX2NzICplbmdpbmUpCj4gIAkJbW1pbyA9IFJJTkdfSFdTX1BH
QShlbmdpbmUtPm1taW9fYmFzZSk7Cj4gIAl9Cj4gIAo+IC0JaWYgKElOVEVMX0dFTihkZXZfcHJp
dikgPj0gNikgewo+IC0JCXUzMiBtYXNrID0gfjB1Owo+IC0KPiAtCQkvKgo+IC0JCSAqIEtlZXAg
dGhlIHJlbmRlciBpbnRlcnJ1cHQgdW5tYXNrZWQgYXMgdGhpcyBwYXBlcnMgb3Zlcgo+IC0JCSAq
IGxvc3QgaW50ZXJydXB0cyBmb2xsb3dpbmcgYSByZXNldC4KPiAtCQkgKi8KPiAtCQlpZiAoZW5n
aW5lLT5pZCA9PSBSQ1MpCj4gLQkJCW1hc2sgJj0gfkJJVCgwKTsKPiAtCj4gLQkJSTkxNV9XUklU
RShSSU5HX0hXU1RBTShlbmdpbmUtPm1taW9fYmFzZSksIG1hc2spOwo+IC0JfQo+IC0KPiAgCUk5
MTVfV1JJVEUobW1pbywgZW5naW5lLT5zdGF0dXNfcGFnZS5nZ3R0X29mZnNldCk7Cj4gIAlQT1NU
SU5HX1JFQUQobW1pbyk7Cj4gIAo+IC0tIAo+IDIuMjAuMAo+IAo+IF9fX19fX19fX19fX19fX19f
X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCj4gSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdAo+
IEludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKPiBodHRwczovL2xpc3RzLmZyZWVkZXNr
dG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAoKLS0gClZpbGxlIFN5cmrDpGzDpApJ
bnRlbApfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRl
bC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6
Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK