From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Kuoppala Subject: Re: [PATCH v2] drm/i915: Break i915_spin_request() if we see an interrupt Date: Thu, 16 Feb 2017 16:08:38 +0200 Message-ID: <87a89mns7t.fsf@gaia.fi.intel.com> References: <20170216131213.2170-1-chris@chris-wilson.co.uk> <20170216134247.14729-1-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 864B36EB3B for ; Thu, 16 Feb 2017 14:09:45 +0000 (UTC) In-Reply-To: <20170216134247.14729-1-chris@chris-wilson.co.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Chris Wilson , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org Q2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+IHdyaXRlczoKCj4gSWYgYW4g aW50ZXJydXB0IGhhcyBiZWVuIHBvc3RlZCwgYW5kIHdlIHdlcmUgc3Bpbm5pbmcgb24gdGhlIGFj dGl2ZQo+IHNlcW5vIHdhaXRpbmcgZm9yIGl0IHRvIGFkdmFuY2UgYnV0IGl0IGRpZCBub3QsIHRo ZW4gd2UgY2FuIGV4cGVjdCB0aGF0Cj4gaXQgd2lsbCBub3Qgc2VlIGl0cyBhZHZhbmNlIGluIHRo ZSBpbW1lZGlhdGUgZnV0dXJlIGFuZCBzaG91bGQgY2FsbCBpbnRvCj4gdGhlIGlycS1zZXFubyBi YXJyaWVyLiBXZSBjYW4gc3RvcCBzcGlubmluZyBhdCB0aGlzIHBvaW50LCBhbmQgbGVhdmUgdGhl Cj4gZGlmZmljdWx0eSBvZiBoYW5kbGluZyB0aGUgY29oZXJlbmN5IHRvIHRoZSBjYWxsZXIuCj4K PiBTaWduZWQtb2ZmLWJ5OiBDaHJpcyBXaWxzb24gPGNocmlzQGNocmlzLXdpbHNvbi5jby51az4K PiBDYzogVHZydGtvIFVyc3VsaW4gPHR2cnRrby51cnN1bGluQGludGVsLmNvbT4KPiBDYzogTWlr YSBLdW9wcGFsYSA8bWlrYS5rdW9wcGFsYUBsaW51eC5pbnRlbC5jb20+Cj4gLS0tCj4gIGRyaXZl cnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtX3JlcXVlc3QuYyB8IDE1ICsrKysrKysrKysrKy0tLQo+ ICAxIGZpbGUgY2hhbmdlZCwgMTIgaW5zZXJ0aW9ucygrKSwgMyBkZWxldGlvbnMoLSkKPgo+IGRp ZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dlbV9yZXF1ZXN0LmMgYi9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dlbV9yZXF1ZXN0LmMKPiBpbmRleCA3NzYwZDc0ODFmODUu LmRlNTJhYzE4ZTIxNSAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dl bV9yZXF1ZXN0LmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dlbV9yZXF1ZXN0 LmMKPiBAQCAtOTcyLDcgKzk3Miw4IEBAIHN0YXRpYyBib29sIGJ1c3l3YWl0X3N0b3AodW5zaWdu ZWQgbG9uZyB0aW1lb3V0LCB1bnNpZ25lZCBpbnQgY3B1KQo+ICBib29sIF9faTkxNV9zcGluX3Jl cXVlc3QoY29uc3Qgc3RydWN0IGRybV9pOTE1X2dlbV9yZXF1ZXN0ICpyZXEsCj4gIAkJCSB1MzIg c2Vxbm8sIGludCBzdGF0ZSwgdW5zaWduZWQgbG9uZyB0aW1lb3V0X3VzKQo+ICB7Cj4gLQl1bnNp Z25lZCBpbnQgY3B1Owo+ICsJc3RydWN0IGludGVsX2VuZ2luZV9jcyAqZW5naW5lID0gcmVxLT5l bmdpbmU7Cj4gKwl1bnNpZ25lZCBpbnQgaXJxLCBjcHU7Cj4gIAo+ICAJLyogV2hlbiB3YWl0aW5n IGZvciBoaWdoIGZyZXF1ZW5jeSByZXF1ZXN0cywgZS5nLiBkdXJpbmcgc3luY2hyb25vdXMKPiAg CSAqIHJlbmRlcmluZyBzcGxpdCBiZXR3ZWVuIHRoZSBDUFUgYW5kIEdQVSwgdGhlIGZpbml0ZSBh bW91bnQgb2YgdGltZQo+IEBAIC05ODQsMTUgKzk4NSwyMyBAQCBib29sIF9faTkxNV9zcGluX3Jl cXVlc3QoY29uc3Qgc3RydWN0IGRybV9pOTE1X2dlbV9yZXF1ZXN0ICpyZXEsCj4gIAkgKiB0YWtl cyB0byBzbGVlcCBvbiBhIHJlcXVlc3QsIG9uIHRoZSBvcmRlciBvZiBhIG1pY3Jvc2Vjb25kLgo+ ICAJICovCj4gIAo+ICsJaXJxID0gYXRvbWljX3JlYWQoJmVuZ2luZS0+aXJxX2NvdW50KTsKPiAg CXRpbWVvdXRfdXMgKz0gbG9jYWxfY2xvY2tfdXMoJmNwdSk7Cj4gIAlkbyB7Cj4gIAkJaWYgKHNl cW5vICE9IGk5MTVfZ2VtX3JlcXVlc3RfZ2xvYmFsX3NlcW5vKHJlcSkpCj4gIAkJCWJyZWFrOwo+ ICAKPiAtCQlpZiAoaTkxNV9zZXFub19wYXNzZWQoaW50ZWxfZW5naW5lX2dldF9zZXFubyhyZXEt PmVuZ2luZSksCj4gLQkJCQkgICAgICBzZXFubykpCj4gKwkJaWYgKGk5MTVfc2Vxbm9fcGFzc2Vk KGludGVsX2VuZ2luZV9nZXRfc2Vxbm8oZW5naW5lKSwgc2Vxbm8pKQo+ICAJCQlyZXR1cm4gdHJ1 ZTsKPiAgCj4gKwkJLyogU2Vxbm8gYXJlIG1lYW50IHRvIGJlIG9yZGVyZWQgKmJlZm9yZSogdGhl IGludGVycnVwdC4gSWYKPiArCQkgKiB3ZSBzZWUgYW4gaW50ZXJydXB0IHdpdGhvdXQgYSBjb3Jy ZXNwb25kaW5nIHNlcW5vIGFkdmFuY2UsCj4gKwkJICogYXNzdW1lIHdlIHdvbid0IHNlZSBvbmUg aW4gdGhlIG5lYXIgZnV0dXJlIGJ1dCByZXF1aXJlCj4gKwkJICogdGhlIGVuZ2luZS0+c2Vxbm9f YmFycmllcigpIHRvIGZpeHVwIGNvaGVyZW5jeS4KPiArCQkgKi8KPiArCQlpZiAoYXRvbWljX3Jl YWQoJmVuZ2luZS0+aXJxX2NvdW50KSAhPSBpcnEpCj4gKwkJCWJyZWFrOwo+ICsKCkxvb2tzIGdv b2QgYnV0IG5vdyBuZWVkIHRvIHdhaXQgZm9yIHBhdGNoIHRvIGludHJvZHVjZQppcnFfY291bnRz IHRvIG1hdGVyaWFsaXplLgoKLU1pa2EKCj4gIAkJaWYgKHNpZ25hbF9wZW5kaW5nX3N0YXRlKHN0 YXRlLCBjdXJyZW50KSkKPiAgCQkJYnJlYWs7Cj4gIAo+IC0tIAo+IDIuMTEuMApfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBs aXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVz a3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK