From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH 09/10] drm/vblank: Restoring vblank counts after device PM events. Date: Mon, 19 Feb 2018 23:39:50 +0100 Message-ID: <20180219223950.GF22199@phenom.ffwll.local> References: <20180203051302.9974-1-dhinakaran.pandiyan@intel.com> <20180203051302.9974-9-dhinakaran.pandiyan@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <20180203051302.9974-9-dhinakaran.pandiyan@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Dhinakaran Pandiyan Cc: Daniel Vetter , Michel =?iso-8859-1?Q?D=E4nzer?= , dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gRnJpLCBGZWIgMDIsIDIwMTggYXQgMDk6MTM6MDFQTSAtMDgwMCwgRGhpbmFrYXJhbiBQYW5k aXlhbiB3cm90ZToKPiBGcm9tOiAiUGFuZGl5YW4sIERoaW5ha2FyYW4iIDxkaGluYWthcmFuLnBh bmRpeWFuQGludGVsLmNvbT4KPiAKPiBUaGUgSFcgZnJhbWUgY291bnRlciBjYW4gZ2V0IHJlc2V0 IGlmIGRldmljZSBlbnRlcnMgYSBsb3cgcG93ZXIgc3RhdGUgYWZ0ZXIKPiB2YmxhbmsgaW50ZXJy dXB0cyB3ZXJlIGRpc2FibGVkLiBUaGlzIG1lc3NlcyB1cCBhbnkgZm9sbG93aW5nIHZibGFuayBj b3VudAo+IHVwZGF0ZSBhcyBhIG5lZ2F0aXZlIGRpZmYgKGh1Z2UgdW5zaWduZWQgZGlmZikgaXMg Y2FsY3VsYXRlZCBmcm9tIHRoZSBIVwo+IGZyYW1lIGNvdW50ZXIgY2hhbmdlLiBXZSBjYW5ub3Qg aWdub3JlIG5lZ2F0aXZlIGRpZmZzIGFsdG9ndGhlciBhcyB0aGVyZQo+IGNvdWxkIGJlIGxlZ2l0 aW1hdGUgd3JhcCBhcm91bmRzLiBTbywgYWxsb3cgZHJpdmVycyB0byB1cGRhdGUgdmJsYW5rLT5j b3VudAo+IHdpdGggbWlzc2VkIHZibGFua3MgZm9yIHRoZSB0aW1lIGludGVycnVwdHMgd2VyZSBk aXNhYmxlZC4gVGhpcyBpcyBzaW1pbGFyCj4gdG8gX2NydGNfdmJsYW5rX29uKCkgZXhjZXB0IHRo YXQgdmJsYW5rcyBpbnRlcnJ1cHRzIGFyZSBub3QgZW5hYmxlZCBhdCB0aGUKPiBlbmQgYXMgdGhp cyBmdW5jdGlvbiBpcyBleHBlY3RlZCB0byBiZSBjYWxsZWQgZnJvbSB0aGUgZHJpdmVyCj4gX2Vu YWJsZV92YmxhbmsoKSB2ZnVuYy4KPiAKPiB2MjogZHJtX2NydGNfdmJsYW5rX3Jlc3RvcmUgc2hv dWxkIHRha2UgY3J0YyBhcyBhcmcuIChDaHJpcykKPiAgICAgQWRkIGRvY3MgYW5kIHNwcmlua2xl IHNvbWUgYXNzZXJ0cy4KPiAKPiBDYzogRGFuaWVsIFZldHRlciA8ZGFuaWVsLnZldHRlckBmZnds bC5jaD4KPiBDYzogQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+Cj4gQ2M6 IE1pY2hlbCBEw6RuemVyIDxtaWNoZWxAZGFlbnplci5uZXQ+Cj4gU2lnbmVkLW9mZi1ieTogRGhp bmFrYXJhbiBQYW5kaXlhbiA8ZGhpbmFrYXJhbi5wYW5kaXlhbkBpbnRlbC5jb20+Cj4gUmV2aWV3 ZWQtYnk6IFJvZHJpZ28gVml2aSA8cm9kcmlnby52aXZpQGludGVsLmNvbT4KPiBBY2tlZC1ieTog RGFuaWVsIFZldHRlciA8ZGFuaWVsLnZldHRlckBmZndsbC5jaD4KClRoaXMgbm93IGNyZWF0ZXMg bmV3IHdhcm5pbmdzIHdoZW4gYnVpbGRpbmcgdGhlIGRvY3MuIFdoZW4gY2hhbmdpbmcgYW55Cmtp bmQgb2Yga2VybmVsIGRvYyBwbGVhc2UgYWx3YXlzIHJ1bgoKJCBtYWtlIGh0bWxkb2NzCgphbmQg bWFrZSBzdXJlIHRoZSBwYXJ0cyB5b3UncmUgdG91Y2hpbmcgYXJlIHdhcm5pbmcgZnJlZSwgdGhl IHJlc3VsdHMgbG9vawpnb29kIChhbmQgY29uc2lzdGVudCB3aXRoIGV4aXN0aW5nIGRvY3MpIGFu ZCB0aGF0IGFsbCB0aGUgaHlwZXJsaW5rcyB3b3JrCmFuZCBwb2ludCB0byB0aGUgcmlnaHQgcGxh Y2VzLgoKUGxlYXNlIHNwaW4gYSBmb2xsb3cgdXAgcGF0Y2ggdG8gZml4IHRoaXMgKHNpbmNlIHRo aXMgb25lIGhlcmUgaXMgbWVyZ2VkCmFscmVhZHkpLgoKVGhhbmtzLCBEYW5pZWwKCj4gLS0tCj4g IGRyaXZlcnMvZ3B1L2RybS9kcm1fdmJsYW5rLmMgfCA1OSArKysrKysrKysrKysrKysrKysrKysr KysrKysrKysrKysrKysrKysrKysrKwo+ICBpbmNsdWRlL2RybS9kcm1fdmJsYW5rLmggICAgIHwg IDIgKysKPiAgMiBmaWxlcyBjaGFuZ2VkLCA2MSBpbnNlcnRpb25zKCspCj4gCj4gZGlmZiAtLWdp dCBhL2RyaXZlcnMvZ3B1L2RybS9kcm1fdmJsYW5rLmMgYi9kcml2ZXJzL2dwdS9kcm0vZHJtX3Zi bGFuay5jCj4gaW5kZXggOTEzOTU0NzY1ZDllLi5jNzgxY2I0MjZiZjEgMTAwNjQ0Cj4gLS0tIGEv ZHJpdmVycy9ncHUvZHJtL2RybV92YmxhbmsuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9kcm1f dmJsYW5rLmMKPiBAQCAtMTIzNyw2ICsxMjM3LDY1IEBAIHZvaWQgZHJtX2NydGNfdmJsYW5rX29u KHN0cnVjdCBkcm1fY3J0YyAqY3J0YykKPiAgfQo+ICBFWFBPUlRfU1lNQk9MKGRybV9jcnRjX3Zi bGFua19vbik7Cj4gIAo+ICsvKioKPiArICogZHJtX3ZibGFua19yZXN0b3JlIC0gZXN0aW1hdGVk IHZibGFua3MgdXNpbmcgdGltZXN0YW1wcyBhbmQgdXBkYXRlIGl0Lgo+ICsgKgo+ICsgKiBQb3dl ciBtYW5hbWVtZW50IGZlYXR1cmVzIGNhbiBjYXVzZSBmcmFtZSBjb3VudGVyIHJlc2V0cyBiZXR3 ZWVuIHZibGFuawo+ICsgKiBkaXNhYmxlIGFuZCBlbmFibGUuIERyaXZlcnMgY2FuIHRoZW4gdXNl IHRoaXMgZnVuY3Rpb24gaW4gdGhlaXIKPiArICogJmRybV9jcnRjX2Z1bmNzLmVuYWJsZV92Ymxh bmsgaW1wbGVtZW50YXRpb24gdG8gZXN0aW1hdGUgdGhlIHZibGFua3Mgc2luY2UKPiArICogdGhl IGxhc3QgJmRybV9jcnRjX2Z1bmNzLmRpc2FibGVfdmJsYW5rLgo+ICsgKgo+ICsgKiBUaGlzIGZ1 bmN0aW9uIGlzIHRoZSBsZWdhY3kgdmVyc2lvbiBvZiBkcm1fY3J0Y192YmxhbmtfcmVzdG9yZSgp Lgo+ICsgKi8KPiArdm9pZCBkcm1fdmJsYW5rX3Jlc3RvcmUoc3RydWN0IGRybV9kZXZpY2UgKmRl diwgdW5zaWduZWQgaW50IHBpcGUpCj4gK3sKPiArCWt0aW1lX3QgdF92Ymxhbms7Cj4gKwlzdHJ1 Y3QgZHJtX3ZibGFua19jcnRjICp2Ymxhbms7Cj4gKwlpbnQgZnJhbWVkdXJfbnM7Cj4gKwl1NjQg ZGlmZl9uczsKPiArCXUzMiBjdXJfdmJsYW5rLCBkaWZmID0gMTsKPiArCWludCBjb3VudCA9IERS TV9USU1FU1RBTVBfTUFYUkVUUklFUzsKPiArCj4gKwlpZiAoV0FSTl9PTihwaXBlID49IGRldi0+ bnVtX2NydGNzKSkKPiArCQlyZXR1cm47Cj4gKwo+ICsJYXNzZXJ0X3NwaW5fbG9ja2VkKCZkZXYt PnZibF9sb2NrKTsKPiArCWFzc2VydF9zcGluX2xvY2tlZCgmZGV2LT52YmxhbmtfdGltZV9sb2Nr KTsKPiArCj4gKwl2YmxhbmsgPSAmZGV2LT52YmxhbmtbcGlwZV07Cj4gKwlXQVJOX09OQ0UoKGRy bV9kZWJ1ZyAmIERSTV9VVF9WQkwpICYmICF2YmxhbmstPmZyYW1lZHVyX25zLAo+ICsJCSAgIkNh bm5vdCBjb21wdXRlIG1pc3NlZCB2YmxhbmtzIHdpdGhvdXQgZnJhbWUgZHVyYXRpb25cbiIpOwo+ ICsJZnJhbWVkdXJfbnMgPSB2YmxhbmstPmZyYW1lZHVyX25zOwo+ICsKPiArCWRvIHsKPiArCQlj dXJfdmJsYW5rID0gX19nZXRfdmJsYW5rX2NvdW50ZXIoZGV2LCBwaXBlKTsKPiArCQlkcm1fZ2V0 X2xhc3RfdmJsdGltZXN0YW1wKGRldiwgcGlwZSwgJnRfdmJsYW5rLCBmYWxzZSk7Cj4gKwl9IHdo aWxlIChjdXJfdmJsYW5rICE9IF9fZ2V0X3ZibGFua19jb3VudGVyKGRldiwgcGlwZSkgJiYgLS1j b3VudCA+IDApOwo+ICsKPiArCWRpZmZfbnMgPSBrdGltZV90b19ucyhrdGltZV9zdWIodF92Ymxh bmssIHZibGFuay0+dGltZSkpOwo+ICsJaWYgKGZyYW1lZHVyX25zKQo+ICsJCWRpZmYgPSBESVZf Uk9VTkRfQ0xPU0VTVF9VTEwoZGlmZl9ucywgZnJhbWVkdXJfbnMpOwo+ICsKPiArCj4gKwlEUk1f REVCVUdfVkJMKCJtaXNzZWQgJWQgdmJsYW5rcyBpbiAlbGxkIG5zLCBmcmFtZSBkdXJhdGlvbj0l ZCBucywgaHdfZGlmZj0lZFxuIiwKPiArCQkgICAgICBkaWZmLCBkaWZmX25zLCBmcmFtZWR1cl9u cywgY3VyX3ZibGFuayAtIHZibGFuay0+bGFzdCk7Cj4gKwlzdG9yZV92YmxhbmsoZGV2LCBwaXBl LCBkaWZmLCB0X3ZibGFuaywgY3VyX3ZibGFuayk7Cj4gK30KPiArRVhQT1JUX1NZTUJPTChkcm1f dmJsYW5rX3Jlc3RvcmUpOwo+ICsKPiArLyoqCj4gKyAqIGRybV9jcnRjX3ZibGFua19yZXN0b3Jl IC0gZXN0aW1hdGUgdmJsYW5rcyB1c2luZyB0aW1lc3RhbXBzIGFuZCB1cGRhdGUgaXQuCj4gKyAq IFBvd2VyIG1hbmFtZW1lbnQgZmVhdHVyZXMgY2FuIGNhdXNlIGZyYW1lIGNvdW50ZXIgcmVzZXRz IGJldHdlZW4gdmJsYW5rCj4gKyAqIGRpc2FibGUgYW5kIGVuYWJsZS4gRHJpdmVycyBjYW4gdGhl biB1c2UgdGhpcyBmdW5jdGlvbiBpbiB0aGVpcgo+ICsgKiAmZHJtX2NydGNfZnVuY3MuZW5hYmxl X3ZibGFuayBpbXBsZW1lbnRhdGlvbiB0byBlc3RpbWF0ZSB0aGUgdmJsYW5rcyBzaW5jZQo+ICsg KiB0aGUgbGFzdCAmZHJtX2NydGNfZnVuY3MuZGlzYWJsZV92YmxhbmsuCj4gKyAqLwo+ICt2b2lk IGRybV9jcnRjX3ZibGFua19yZXN0b3JlKHN0cnVjdCBkcm1fY3J0YyAqY3J0YykKPiArewo+ICsJ ZHJtX3ZibGFua19yZXN0b3JlKGNydGMtPmRldiwgZHJtX2NydGNfaW5kZXgoY3J0YykpOwo+ICt9 Cj4gK0VYUE9SVF9TWU1CT0woZHJtX2NydGNfdmJsYW5rX3Jlc3RvcmUpOwo+ICsKPiAgc3RhdGlj IHZvaWQgZHJtX2xlZ2FjeV92YmxhbmtfcHJlX21vZGVzZXQoc3RydWN0IGRybV9kZXZpY2UgKmRl diwKPiAgCQkJCQkgIHVuc2lnbmVkIGludCBwaXBlKQo+ICB7Cj4gZGlmZiAtLWdpdCBhL2luY2x1 ZGUvZHJtL2RybV92YmxhbmsuaCBiL2luY2x1ZGUvZHJtL2RybV92YmxhbmsuaAo+IGluZGV4IGE0 YzNiMGEwYTE5Ny4uMTZkNDZlMmE2ODU0IDEwMDY0NAo+IC0tLSBhL2luY2x1ZGUvZHJtL2RybV92 YmxhbmsuaAo+ICsrKyBiL2luY2x1ZGUvZHJtL2RybV92YmxhbmsuaAo+IEBAIC0xODAsNiArMTgw LDggQEAgdm9pZCBkcm1fY3J0Y192Ymxhbmtfb2ZmKHN0cnVjdCBkcm1fY3J0YyAqY3J0Yyk7Cj4g IHZvaWQgZHJtX2NydGNfdmJsYW5rX3Jlc2V0KHN0cnVjdCBkcm1fY3J0YyAqY3J0Yyk7Cj4gIHZv aWQgZHJtX2NydGNfdmJsYW5rX29uKHN0cnVjdCBkcm1fY3J0YyAqY3J0Yyk7Cj4gIHU2NCBkcm1f Y3J0Y19hY2N1cmF0ZV92YmxhbmtfY291bnQoc3RydWN0IGRybV9jcnRjICpjcnRjKTsKPiArdm9p ZCBkcm1fdmJsYW5rX3Jlc3RvcmUoc3RydWN0IGRybV9kZXZpY2UgKmRldiwgdW5zaWduZWQgaW50 IHBpcGUpOwo+ICt2b2lkIGRybV9jcnRjX3ZibGFua19yZXN0b3JlKHN0cnVjdCBkcm1fY3J0YyAq Y3J0Yyk7Cj4gIAo+ICBib29sIGRybV9jYWxjX3ZibHRpbWVzdGFtcF9mcm9tX3NjYW5vdXRwb3Mo c3RydWN0IGRybV9kZXZpY2UgKmRldiwKPiAgCQkJCQkgICB1bnNpZ25lZCBpbnQgcGlwZSwgaW50 ICptYXhfZXJyb3IsCj4gLS0gCj4gMi4xNC4xCj4gCgotLSAKRGFuaWVsIFZldHRlcgpTb2Z0d2Fy ZSBFbmdpbmVlciwgSW50ZWwgQ29ycG9yYXRpb24KaHR0cDovL2Jsb2cuZmZ3bGwuY2gKX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxp bmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJl ZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg==