From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Kuoppala Subject: Re: [PATCH v2] drm/i915: FIFO space query code refactor Date: Fri, 20 Feb 2015 11:34:29 +0200 Message-ID: <87wq3d7wpm.fsf@gaia.fi.intel.com> References: <20141210104129.GP27182@phenom.ffwll.local> <1418235132-23601-1-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 mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTP id 958B56E664 for ; Fri, 20 Feb 2015 01:34:39 -0800 (PST) In-Reply-To: <1418235132-23601-1-git-send-email-david.s.gordon@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 , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org RGF2ZSBHb3Jkb24gPGRhdmlkLnMuZ29yZG9uQGludGVsLmNvbT4gd3JpdGVzOgoKPiBXaGVuIHF1 ZXJ5aW5nIHRoZSBHVEZJRk9DVEwgcmVnaXN0ZXIgdG8gY2hlY2sgdGhlIEZJRk8gc3BhY2UsIHRo ZSByZWFkIHZhbHVlCj4gbXVzdCBiZSBtYXNrZWQuIFRoZSBvcGVyYXRpb24gaXMgcmVwZWF0ZWQg ZXhwbGljaXRseSBpbiBzZXZlcmFsIHBsYWNlcy4gVGhpcwo+IGNoYW5nZSByZWZhY3RvcnMgdGhl IHJlYWQtYW5kLW1hc2sgY29kZSBpbnRvIGEgZnVuY3Rpb24gY2FsbC4KPgo+IHYyOiByZWJhc2Vk IG9uIHRvcCBvZiBNaWthJ3MgZm9yY2V3YWtlIHBhdGNoIHNldCwgc3BlY2lmaWNhbGx5Ogo+IAlb UEFUQ0ggOC84XSBkcm0vaTkxNTogRW51bSBmb3JjZXdha2UgZG9tYWlucyBhbmQgZG9tYWluIGlk ZW50aWZpZXJzCj4KPiBDaGFuZ2UtSWQ6IElkMWE5ZjM3ODVjYjIwYjgyZDRjYWEzMzBjMzdiMzFl NGUzODRhM2VmCj4gU2lnbmVkLW9mZi1ieTogRGF2ZSBHb3Jkb24gPGRhdmlkLnMuZ29yZG9uQGlu dGVsLmNvbT4KClJldmlld2VkLWJ5OiBNaWthIEt1b3BwYWxhIDxtaWthLmt1b3BwYWxhQGludGVs LmNvbT4KCj4gLS0tCj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3VuY29yZS5jIHwgICAx OSArKysrKysrKysrKystLS0tLS0tCj4gIDEgZmlsZSBjaGFuZ2VkLCAxMiBpbnNlcnRpb25zKCsp LCA3IGRlbGV0aW9ucygtKQo+Cj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2lu dGVsX3VuY29yZS5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfdW5jb3JlLmMKPiBpbmRl eCA2NjM2NWU3Li5hMDMzMWE3IDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2lu dGVsX3VuY29yZS5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfdW5jb3JlLmMK PiBAQCAtMjA1LDYgKzIwNSwxMyBAQCBzdGF0aWMgdm9pZCBmd19kb21haW5zX3B1dF93aXRoX2Zp Zm8oc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2LAo+ICAJZ2VuNl9ndF9jaGVja19m aWZvZGJnKGRldl9wcml2KTsKPiAgfQo+ICAKPiArc3RhdGljIGlubGluZSB1MzIgZmlmb19mcmVl X2VudHJpZXMoc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2KQo+ICt7Cj4gKwl1MzIg Y291bnQgPSBfX3Jhd19pOTE1X3JlYWQzMihkZXZfcHJpdiwgR1RGSUZPQ1RMKTsKPiArCj4gKwly ZXR1cm4gY291bnQgJiBHVF9GSUZPX0ZSRUVfRU5UUklFU19NQVNLOwo+ICt9Cj4gKwo+ICBzdGF0 aWMgaW50IF9fZ2VuNl9ndF93YWl0X2Zvcl9maWZvKHN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpk ZXZfcHJpdikKPiAgewo+ICAJaW50IHJldCA9IDA7Cj4gQEAgLTIxMiwxNiArMjE5LDE1IEBAIHN0 YXRpYyBpbnQgX19nZW42X2d0X3dhaXRfZm9yX2ZpZm8oc3RydWN0IGRybV9pOTE1X3ByaXZhdGUg KmRldl9wcml2KQo+ICAJLyogT24gVkxWLCBGSUZPIHdpbGwgYmUgc2hhcmVkIGJ5IGJvdGggU1cg YW5kIEhXLgo+ICAJICogU28sIHdlIG5lZWQgdG8gcmVhZCB0aGUgRlJFRV9FTlRSSUVTIGV2ZXJ5 dGltZSAqLwo+ICAJaWYgKElTX1ZBTExFWVZJRVcoZGV2X3ByaXYtPmRldikpCj4gLQkJZGV2X3By aXYtPnVuY29yZS5maWZvX2NvdW50ID0KPiAtCQkJX19yYXdfaTkxNV9yZWFkMzIoZGV2X3ByaXYs IEdURklGT0NUTCkgJgo+IC0JCQkJCQlHVF9GSUZPX0ZSRUVfRU5UUklFU19NQVNLOwo+ICsJCWRl dl9wcml2LT51bmNvcmUuZmlmb19jb3VudCA9IGZpZm9fZnJlZV9lbnRyaWVzKGRldl9wcml2KTsK PiAgCj4gIAlpZiAoZGV2X3ByaXYtPnVuY29yZS5maWZvX2NvdW50IDwgR1RfRklGT19OVU1fUkVT RVJWRURfRU5UUklFUykgewo+ICAJCWludCBsb29wID0gNTAwOwo+IC0JCXUzMiBmaWZvID0gX19y YXdfaTkxNV9yZWFkMzIoZGV2X3ByaXYsIEdURklGT0NUTCkgJiBHVF9GSUZPX0ZSRUVfRU5UUklF U19NQVNLOwo+ICsJCXUzMiBmaWZvID0gZmlmb19mcmVlX2VudHJpZXMoZGV2X3ByaXYpOwo+ICsK PiAgCQl3aGlsZSAoZmlmbyA8PSBHVF9GSUZPX05VTV9SRVNFUlZFRF9FTlRSSUVTICYmIGxvb3At LSkgewo+ICAJCQl1ZGVsYXkoMTApOwo+IC0JCQlmaWZvID0gX19yYXdfaTkxNV9yZWFkMzIoZGV2 X3ByaXYsIEdURklGT0NUTCkgJiBHVF9GSUZPX0ZSRUVfRU5UUklFU19NQVNLOwo+ICsJCQlmaWZv ID0gZmlmb19mcmVlX2VudHJpZXMoZGV2X3ByaXYpOwo+ICAJCX0KPiAgCQlpZiAoV0FSTl9PTihs b29wIDwgMCAmJiBmaWZvIDw9IEdUX0ZJRk9fTlVNX1JFU0VSVkVEX0VOVFJJRVMpKQo+ICAJCQkr K3JldDsKPiBAQCAtMjc3LDggKzI4Myw3IEBAIHZvaWQgaW50ZWxfdW5jb3JlX2ZvcmNld2FrZV9y ZXNldChzdHJ1Y3QgZHJtX2RldmljZSAqZGV2LCBib29sIHJlc3RvcmUpCj4gIAo+ICAJCWlmIChJ U19HRU42KGRldikgfHwgSVNfR0VONyhkZXYpKQo+ICAJCQlkZXZfcHJpdi0+dW5jb3JlLmZpZm9f Y291bnQgPQo+IC0JCQkJX19yYXdfaTkxNV9yZWFkMzIoZGV2X3ByaXYsIEdURklGT0NUTCkgJgo+ IC0JCQkJR1RfRklGT19GUkVFX0VOVFJJRVNfTUFTSzsKPiArCQkJCWZpZm9fZnJlZV9lbnRyaWVz KGRldl9wcml2KTsKPiAgCX0KPiAgCj4gIAlzcGluX3VubG9ja19pcnFyZXN0b3JlKCZkZXZfcHJp di0+dW5jb3JlLmxvY2ssIGlycWZsYWdzKTsKPiAtLSAKPiAxLjcuOS41Cj4KPiBfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwo+IEludGVsLWdmeCBtYWlsaW5n IGxpc3QKPiBJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCj4gaHR0cDovL2xpc3RzLmZy ZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeApfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0Cklu dGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9y Zy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=