From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Wilson Subject: [PATCH 1/3] drm: Defer disabling the vblank IRQ until the next interrupt (for instant-off) Date: Wed, 6 Jan 2016 11:09:53 +0000 Message-ID: <1452078595-2840-1-git-send-email-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org Cc: =?UTF-8?q?Michel=20D=C3=A4nzer?= , Laurent Pinchart , Dave Airlie , intel-gfx@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org T24gdmJsYW5rIGluc3RhbnQtb2ZmIHN5c3RlbXMsIHdlIGNhbiBnZXQgaW50byBhIHNpdHVhdGlv biB3aGVyZSB0aGUgY29zdApvZiBlbmFibGluZyBhbmQgZGlzYWJsaW5nIHRoZSB2YmxhbmsgSVJR IGFyb3VuZCBhIGRybVdhaXRWYmxhbmsgcXVlcnkKZG9taW5hdGVzLiBBbmQgd2l0aCB0aGUgYWR2 ZW50IG9mIGV2ZW4gZGVlcGVyIGhhcmR3YXJlIHNsZWVwIHN0YXRlLAp0b3VjaGluZyByZWdpc3Rl cnMgYmVjb21lcyBldmVyIG1vcmUgZXhwZW5zaXZlLiAgSG93ZXZlciwgd2Uga25vdyB0aGF0IGlm CnRoZSB1c2VyIHdhbnRzIHRoZSBjdXJyZW50IHZibGFuayBjb3VudGVyLCB0aGV5IGFyZSBhbHNv IHZlcnkgbGlrZWx5IHRvCmltbWVkaWF0ZWx5IHF1ZXVlIGEgdmJsYW5rIHdhaXQgYW5kIHNvIHdl IGNhbiBrZWVwIHRoZSBpbnRlcnJ1cHQgYXJvdW5kCmFuZCBvbmx5IHR1cm4gaXQgb2ZmIGlmIHdl IGhhdmUgbm8gZnVydGhlciB2YmxhbmsgcmVxdWVzdHMgcXVldWVkIHdpdGhpbgp0aGUgaW50ZXJy dXB0IGludGVydmFsLgoKQWZ0ZXIgdmJsYW5rIGV2ZW50IGRlbGl2ZXJ5LCB0aGlzIHBhdGNoIGFk ZHMgYSBzaGFkb3cgb2Ygb25lIHZibGFuayB3aGVyZQp0aGUgaW50ZXJydXB0IGlzIGtlcHQgYWxp dmUgZm9yIHRoZSB1c2VyIHRvIHF1ZXJ5IGFuZCBxdWV1ZSBhbm90aGVyIHZibGFuawpldmVudC4g U2ltaWxhcmx5LCBpZiB0aGUgdXNlciBpcyB1c2luZyBibG9ja2luZyBkcm1XYWl0VmJsYW5rcywg dGhlCmludGVycnVwdCB3aWxsIGJlIGRpc2FibGVkIG9uIHRoZSBJUlEgZm9sbG93aW5nIHRoZSB3 YWl0IGNvbXBsZXRpb24uCkhvd2V2ZXIsIGlmIHRoZSB1c2VyIGlzIHNpbXBseSBxdWVyeWluZyB0 aGUgY3VycmVudCB2YmxhbmsgY291bnRlciBhbmQKdGltZXN0YW1wLCB0aGUgaW50ZXJydXB0IHdp bGwgYmUgZGlzYWJsZWQgYWZ0ZXIgZXZlcnkgSVJRIGFuZCB0aGUgdXNlcgp3aWxsIGVuYWJsZWQg aXQgYWdhaW4gb24gdGhlIGZpcnN0IHF1ZXJ5IGZvbGxvd2luZyB0aGUgSVJRLgoKdjI6IE1hcmlv IEtsZWluZXIgLQpBZnRlciB0ZXN0aW5nIHRoaXMsIG9uZSBtb3JlIHRoaW5nIHRoYXQgd291bGQg bWFrZSBzZW5zZSBpcyB0byBtb3ZlCnRoZSBkaXNhYmxlIGJsb2NrIGF0IHRoZSBlbmQgb2YgZHJt X2hhbmRsZV92YmxhbmsoKSBpbnN0ZWFkIG9mIGF0IHRoZQp0b3AuCgpUdXJucyBvdXQgdGhhdCBp ZiBoaWdoIHByZWNpc2lvbiB0aW1lc3RhbWluZyBpcyBkaXNhYmxlZCBvciBkb2Vzbid0Cndvcmsg Zm9yIHNvbWUgcmVhc29uIChhcyBjYW4gYmUgc2ltdWxhdGVkIGJ5IGVjaG8gMCA+Ci9zeXMvbW9k dWxlL2RybS9wYXJhbWV0ZXJzL3RpbWVzdGFtcF9wcmVjaXNpb25fdXNlYyksIHRoZW4gd2l0aCB5 b3VyCmRlbGF5ZWQgZGlzYWJsZSBjb2RlIGF0IGl0cyBjdXJyZW50IHBsYWNlLCB0aGUgdmJsYW5r IGNvdW50ZXIgd29uJ3QKaW5jcmVtZW50IGFueW1vcmUgYXQgYWxsIGZvciBpbnN0YW50IHF1ZXJp ZXMsIGllLiB3aXRoIHlvdXIgb3RoZXIKImluc3RhbnQgcXVlcnkiIHBhdGNoZXMuIENsaWVudHMg d2hpY2ggcmVwZWF0ZWRseSBxdWVyeSB0aGUgY291bnRlcgphbmQgd2FpdCBmb3IgaXQgdG8gcHJv Z3Jlc3Mgd2lsbCBzaW1wbHkgaGFuZywgc3Bpbm5pbmcgaW4gYW4gZW5kbGVzcwpxdWVyeSBsb29w LiBUaGVyZSdzIHRoYXQgY29tbWVudCBpbiB2YmxhbmtfZGlzYWJsZV9hbmRfc2F2ZToKCiIqIFNr aXAgdGhpcyBzdGVwIGlmIHRoZXJlIGlzbid0IGFueSBoaWdoIHByZWNpc2lvbiB0aW1lc3RhbXAK ICogYXZhaWxhYmxlLiBJbiB0aGF0IGNhc2Ugd2UgY2FuJ3QgYWNjb3VudCBmb3IgdGhpcyBhbmQg anVzdAogKiBob3BlIGZvciB0aGUgYmVzdC4KICovCgpXaXRoIHRoZSBkaXNhYmxlIGhhcHBlbmlu ZyBhZnRlciBsZWFkaW5nIGVkZ2Ugb2YgdmJsYW5rICg9PSBodyBjb3VudGVyCmluY3JlbWVudCBh bHJlYWR5IGhhcHBlbmVkKSBidXQgYmVmb3JlIHRoZSB2YmxhbmsgY291bnRlci90aW1lc3RhbXAK aGFuZGxpbmcgaW4gZHJtX2hhbmRsZV92YmxhbmssIHRoYXQgc3RlcCBpcyBuZWVkZWQgdG8ga2Vl cCB0aGUgY291bnRlcgpwcm9ncmVzc2luZywgc28gc2tpcHBpbmcgaXQgaXMgYmFkLgoKTm93IHdp dGhvdXQgaGlnaCBwcmVjaXNpb24gdGltZXN0YW1waW5nIHN1cHBvcnQsIGEga21zIGRyaXZlciBt dXN0IG5vdApzZXQgZGV2LT52YmxhbmtfZGlzYWJsZV9pbW1lZGlhdGUgPSB0cnVlLCBhcyB0aGlz IHdvdWxkIGNhdXNlIHByb2JsZW1zCmZvciBjbGllbnRzLCBzbyB0aGlzIHNob3VsZG4ndCBtYXR0 ZXIsIGJ1dCBpdCB3b3VsZCBiZSBnb29kIHRvIHN0aWxsCm1ha2UgdGhpcyByb2J1c3QgYWdhaW5z dCBhIGZ1dHVyZSBrbXMgZHJpdmVyIHdoaWNoIG1pZ2h0IGhhdmUKdW5yZWxpYWJsZSBoaWdoIHBy ZWNpc2lvbiB0aW1lc3RhbXBpbmcsIGUuZy4sIGhpZ2ggcHJlY2lzaW9uCnRpbWVzdGFtcGluZyB0 aGF0IGludGVybWl0dGVudGx5IGRvZXNuJ3Qgd29yay4KCnYzOiBQYXRjaCBiZWZvcmUgY29mZmVl IG5lZWRzIGV4dHJhIGNvZmZlZS4KClRlc3RjYXNlOiBpZ3Qva21zX3ZibGFuawpTaWduZWQtb2Zm LWJ5OiBDaHJpcyBXaWxzb24gPGNocmlzQGNocmlzLXdpbHNvbi5jby51az4KQ2M6IFZpbGxlIFN5 cmrDpGzDpCA8dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+CkNjOiBEYW5pZWwgVmV0dGVy IDxkYW5pZWxAZmZ3bGwuY2g+CkNjOiBNaWNoZWwgRMOkbnplciA8bWljaGVsQGRhZW56ZXIubmV0 PgpDYzogTGF1cmVudCBQaW5jaGFydCA8bGF1cmVudC5waW5jaGFydEBpZGVhc29uYm9hcmQuY29t PgpDYzogRGF2ZSBBaXJsaWUgPGFpcmxpZWRAcmVkaGF0LmNvbT4sCkNjOiBNYXJpbyBLbGVpbmVy IDxtYXJpby5rbGVpbmVyLmRlQGdtYWlsLmNvbT4KLS0tCiBkcml2ZXJzL2dwdS9kcm0vZHJtX2ly cS5jIHwgMTQgKysrKysrKysrKysrLS0KIDEgZmlsZSBjaGFuZ2VkLCAxMiBpbnNlcnRpb25zKCsp LCAyIGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9kcm1faXJxLmMg Yi9kcml2ZXJzL2dwdS9kcm0vZHJtX2lycS5jCmluZGV4IDYwN2Y0OTNhZTgwMS4uY2E1ZWY4N2M1 N2MxIDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vZHJtX2lycS5jCisrKyBiL2RyaXZlcnMv Z3B1L2RybS9kcm1faXJxLmMKQEAgLTEyMTMsOSArMTIxMyw5IEBAIHZvaWQgZHJtX3ZibGFua19w dXQoc3RydWN0IGRybV9kZXZpY2UgKmRldiwgdW5zaWduZWQgaW50IHBpcGUpCiAJaWYgKGF0b21p Y19kZWNfYW5kX3Rlc3QoJnZibGFuay0+cmVmY291bnQpKSB7CiAJCWlmIChkcm1fdmJsYW5rX29m ZmRlbGF5ID09IDApCiAJCQlyZXR1cm47Ci0JCWVsc2UgaWYgKGRldi0+dmJsYW5rX2Rpc2FibGVf aW1tZWRpYXRlIHx8IGRybV92Ymxhbmtfb2ZmZGVsYXkgPCAwKQorCQllbHNlIGlmIChkcm1fdmJs YW5rX29mZmRlbGF5IDwgMCkKIAkJCXZibGFua19kaXNhYmxlX2ZuKCh1bnNpZ25lZCBsb25nKXZi bGFuayk7Ci0JCWVsc2UKKwkJZWxzZSBpZiAoIWRldi0+dmJsYW5rX2Rpc2FibGVfaW1tZWRpYXRl KQogCQkJbW9kX3RpbWVyKCZ2YmxhbmstPmRpc2FibGVfdGltZXIsCiAJCQkJICBqaWZmaWVzICsg KChkcm1fdmJsYW5rX29mZmRlbGF5ICogSFopLzEwMDApKTsKIAl9CkBAIC0xODM1LDYgKzE4MzUs MTYgQEAgYm9vbCBkcm1faGFuZGxlX3ZibGFuayhzdHJ1Y3QgZHJtX2RldmljZSAqZGV2LCB1bnNp Z25lZCBpbnQgcGlwZSkKIAl3YWtlX3VwKCZ2YmxhbmstPnF1ZXVlKTsKIAlkcm1faGFuZGxlX3Zi bGFua19ldmVudHMoZGV2LCBwaXBlKTsKIAorCS8qIFdpdGggaW5zdGFudC1vZmYsIHdlIGRlZmVy IGRpc2FibGluZyB0aGUgaW50ZXJydXB0IHVudGlsIGFmdGVyCisJICogd2UgZmluaXNoIHByb2Nl c3NpbmcgdGhlIGZvbGxvd2luZyB2YmxhbmsuIFRoZSBkaXNhYmxlIGhhcyB0bworCSAqIGJlIGxh c3QgKGFmdGVyIGRybV9oYW5kbGVfdmJsYW5rX2V2ZW50cykgc28gdGhhdCB0aGUgdGltZXN0YW1w CisJICogaXMgYWx3YXlzIGFjY3VyYXRlLgorCSAqLworCWlmIChkZXYtPnZibGFua19kaXNhYmxl X2ltbWVkaWF0ZSAmJgorCSAgICBkcm1fdmJsYW5rX29mZmRlbGF5ID4gMCAmJgorCSAgICAhYXRv bWljX3JlYWQoJnZibGFuay0+cmVmY291bnQpKQorCQl2YmxhbmtfZGlzYWJsZV9mbigodW5zaWdu ZWQgbG9uZyl2YmxhbmspOworCiAJc3Bpbl91bmxvY2tfaXJxcmVzdG9yZSgmZGV2LT5ldmVudF9s b2NrLCBpcnFmbGFncyk7CiAKIAlyZXR1cm4gdHJ1ZTsKLS0gCjIuNy4wLnJjMwoKX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcg bGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHA6Ly9saXN0cy5mcmVlZGVz a3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwK