From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Wilson Subject: [PATCH v3] drm/i915: Advance ring->head fully when idle Date: Thu, 6 Apr 2017 16:52:32 +0100 Message-ID: <20170406155232.26817-1-chris@chris-wilson.co.uk> References: <20170405160624.5862-1-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wr0-x243.google.com (mail-wr0-x243.google.com [IPv6:2a00:1450:400c:c0c::243]) by gabe.freedesktop.org (Postfix) with ESMTPS id D8E526E9C2 for ; Thu, 6 Apr 2017 15:52:35 +0000 (UTC) Received: by mail-wr0-x243.google.com with SMTP id o21so7489419wrb.3 for ; Thu, 06 Apr 2017 08:52:35 -0700 (PDT) In-Reply-To: <20170405160624.5862-1-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: intel-gfx@lists.freedesktop.org Cc: Mika Kuoppala List-Id: intel-gfx@lists.freedesktop.org V2hlbiB3ZSByZXRpcmUgdGhlIGxhc3QgcmVxdWVzdCBvbiB0aGUgcmluZywgYmVmb3JlIHdlIGV2 ZXIgYWNjZXNzIHRoYXQKcmluZyBhZ2FpbiB3ZSBrbm93IGl0IHdpbGwgYmUgY29tcGxldGVseSBp ZGxlIGFuZCBzbyB3ZSBjYW4gYWR2YW5jZSB0aGUKcmluZy0+aGVhZCBmdWxseSB0byB0aGUgZW5k IChpLmUuIHJpbmctPnRhaWwpIGFuZCBub3QganVzdCB0byB0aGUgc3RhcnQKb2YgdGhlIGJyZWFk Y3J1bWIuIFRoaXMgYWxsb3dzIHVzIHRvIHNraXAgcmUtZW1pdHRpbmcgdGhlIGJyZWFkY3J1bWIK YWZ0ZXIgcmVzZXR0aW5nIHRoZSBHUFUgaWYgdGhlIHJpbmcgd2FzIGVudGlyZWx5IGlkbGUuIFRo aXMgcHJldmVudHMgdXMKZnJvbSBvdmVyd3JpdGluZyBhIHNlcW5vIHdyYXBhcm91bmQgYnkgcmUt ZXhlY3V0aW5nIGEgc3RhbGUgYnJlYWRjcnVtYiwKaS5lLgoJc3VibWl0X3JlcXVlc3QoMSkKCWlu dGVsX2VuZ2luZV9pbml0X2dsb2JhbF9zZXFubygwKQoJaTkxNV9yZXNldCgpCndvdWxkIHRoZW4g bGVhdmUgMSBpbiB0aGUgSFdTLCBidXQgdGhlIG5leHQgcmVxdWVzdCB0byBleGVjdXRlIHdvdWxk CmFsc28gYmUgd2l0aCBzZXFubyAxLiBUaGUgc2FuaXR5IGNoZWNrcyB1cG9uIHN1Ym1pc3Npb24g ZGV0ZWN0IHRoaXMgYXMgYQp0aW1ld2FycCBhbmQgZXhwbG9kZS4gQnkgc2V0dGluZyB0aGUgcmlu ZyBhcyBlbXB0eSwgdXBvbiByZXNldCB0aGUgSFdTCmlzIGxlZnQgYXMgMCwgbGVhdmluZyBpdCBj b25zaXN0ZW50IHdpdGggdGhlIHRpbWVsaW5lLgoKdjI6IEZpeCBjaGVjayBmb3IgZGVsZXRpbmcg bGFzdCBlbGVtZW50IG9mIGxpc3QuIFdlIGtub3cgdGhhdCB0aGlzCnJlcXVlc3QgaXMgYWx3YXlz IHRoZSBmaXJzdCBlbGVtZW50IG9mIHRoZSByaW5nLCBzbyBvbmx5IGlmIG5leHQKcG9pbnRzIGJh Y2sgdG8gdGhlIHN0YXJ0IHdpbGwgdGhpcyBiZSB0aGUgb25seSByZXF1ZXN0IGluIGZsaWdodC4K djM6IFJlbW92ZSBvcGVuY29kaW5nIG9mIGxpc3RfaXNfbGFzdCgpCgpCdWd6aWxsYTogaHR0cHM6 Ly9idWdzLmZyZWVkZXNrdG9wLm9yZy9zaG93X2J1Zy5jZ2k/aWQ9MTAwMTQ0ClRlc3RjYXNlOiBp Z3QvZ2VtX2V4ZWNfd2hpc3Blci9oYW5nLSoKU2lnbmVkLW9mZi1ieTogQ2hyaXMgV2lsc29uIDxj aHJpc0BjaHJpcy13aWxzb24uY28udWs+CkNjOiBNaWthIEt1b3BwYWxhIDxtaWthLmt1b3BwYWxh QGludGVsLmNvbT4KLS0tCiBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dlbV9yZXF1ZXN0LmMg fCA1ICsrKystCiAxIGZpbGUgY2hhbmdlZCwgNCBpbnNlcnRpb25zKCspLCAxIGRlbGV0aW9uKC0p CgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW1fcmVxdWVzdC5jIGIv ZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW1fcmVxdWVzdC5jCmluZGV4IDJmOGM1MTMyYjU0 ZS4uMzE0Yjg1MmZhMzQyIDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dl bV9yZXF1ZXN0LmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW1fcmVxdWVzdC5j CkBAIC0yOTUsOCArMjk1LDExIEBAIHN0YXRpYyB2b2lkIGk5MTVfZ2VtX3JlcXVlc3RfcmV0aXJl KHN0cnVjdCBkcm1faTkxNV9nZW1fcmVxdWVzdCAqcmVxdWVzdCkKIAkgKiBOb3RlIHRoaXMgcmVx dWlyZXMgdGhhdCB3ZSBhcmUgYWx3YXlzIGNhbGxlZCBpbiByZXF1ZXN0CiAJICogY29tcGxldGlv biBvcmRlci4KIAkgKi8KKwlpZiAobGlzdF9pc19sYXN0KCZyZXF1ZXN0LT5yaW5nX2xpbmssICZy ZXF1ZXN0LT5yaW5nLT5yZXF1ZXN0X2xpc3QpKQorCQlyZXF1ZXN0LT5yaW5nLT5oZWFkID0gcmVx dWVzdC0+cmluZy0+dGFpbDsKKwllbHNlCisJCXJlcXVlc3QtPnJpbmctPmhlYWQgPSByZXF1ZXN0 LT5wb3N0Zml4OwogCWxpc3RfZGVsKCZyZXF1ZXN0LT5yaW5nX2xpbmspOwotCXJlcXVlc3QtPnJp bmctPmhlYWQgPSByZXF1ZXN0LT5wb3N0Zml4OwogCWlmICghLS1yZXF1ZXN0LT5pOTE1LT5ndC5h Y3RpdmVfcmVxdWVzdHMpIHsKIAkJR0VNX0JVR19PTighcmVxdWVzdC0+aTkxNS0+Z3QuYXdha2Up OwogCQltb2RfZGVsYXllZF93b3JrKHJlcXVlc3QtPmk5MTUtPndxLAotLSAKMi4xMS4wCgpfX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFp bGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5m cmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK