From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rodrigo Vivi Subject: Re: [PATCH 4/5] drm/vblank: Restoring vblank counts after device PM events. Date: Fri, 19 Jan 2018 00:01:02 -0800 Message-ID: <20180119080102.7qccc7rattlzkuu3@intel.com> References: <20180112215707.3084-1-dhinakaran.pandiyan@intel.com> <20180112215707.3084-4-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: <20180112215707.3084-4-dhinakaran.pandiyan@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Dhinakaran Pandiyan Cc: Daniel Vetter , intel-gfx@lists.freedesktop.org, Michel =?iso-8859-1?Q?D=E4nzer?= , dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org T24gRnJpLCBKYW4gMTIsIDIwMTggYXQgMDk6NTc6MDZQTSArMDAwMCwgRGhpbmFrYXJhbiBQYW5k aXlhbiB3cm90ZToKPiBUaGUgSFcgZnJhbWUgY291bnRlciBjYW4gZ2V0IHJlc2V0IGlmIGRldmlj ZSBlbnRlcnMgYSBsb3cgcG93ZXIgc3RhdGUgYWZ0ZXIKPiB2YmxhbmsgaW50ZXJydXB0cyB3ZXJl IGRpc2FibGVkLiBUaGlzIG1lc3NlcyB1cCBhbnkgZm9sbG93aW5nIHZibGFuayBjb3VudAo+IHVw ZGF0ZSBhcyBhIG5lZ2F0aXZlIGRpZmYgKGh1Z2UgdW5zaWduZWQgZGlmZikgaXMgY2FsY3VsYXRl ZCBmcm9tIHRoZSBIVwo+IGZyYW1lIGNvdW50ZXIgY2hhbmdlLiBXZSBjYW5ub3QgaWdub3JlIG5l Z2F0aXZlIGRpZmZzIGFsdG9ndGhlciBhcyB0aGVyZQo+IGNvdWxkIGJlIGxlZ2l0aW1hdGUgd3Jh cCBhcm91bmRzLiBTbywgYWxsb3cgZHJpdmVycyB0byB1cGRhdGUgdmJsYW5rLT5jb3VudAo+IHdp dGggbWlzc2VkIHZibGFua3MgZm9yIHRoZSB0aW1lIGludGVycnVwdHMgd2VyZSBkaXNhYmxlZC4g VGhpcyBpcyBzaW1pbGFyCj4gdG8gX2NydGNfdmJsYW5rX29uKCkgZXhjZXB0IHRoYXQgdmJsYW5r cyBpbnRlcnJ1cHRzIGFyZSBub3QgZW5hYmxlZCBhdCB0aGUKPiBlbmQgYXMgdGhpcyBmdW5jdGlv biBpcyBleHBlY3RlZCB0byBiZSBjYWxsZWQgZnJvbSB0aGUgZHJpdmVyCj4gX2VuYWJsZV92Ymxh bmsoKSB2ZnVuYy4KPiAKPiB2MjogZHJtX2NydGNfdmJsYW5rX3Jlc3RvcmUgc2hvdWxkIHRha2Ug Y3J0YyBhcyBhcmcuIChDaHJpcykKPiAgICAgQWRkIGRvY3MgYW5kIHNwcmlua2xlIHNvbWUgYXNz ZXJ0cy4KPiAKPiBDYzogRGFuaWVsIFZldHRlciA8ZGFuaWVsLnZldHRlckBmZndsbC5jaD4KPiBD YzogQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+Cj4gQ2M6IE1pY2hlbCBE w6RuemVyIDxtaWNoZWxAZGFlbnplci5uZXQ+Cj4gU2lnbmVkLW9mZi1ieTogRGhpbmFrYXJhbiBQ YW5kaXlhbiA8ZGhpbmFrYXJhbi5wYW5kaXlhbkBpbnRlbC5jb20+Cj4gLS0tCj4gIGRyaXZlcnMv Z3B1L2RybS9kcm1fdmJsYW5rLmMgfCA1OSArKysrKysrKysrKysrKysrKysrKysrKysrKysrKysr KysrKysrKysrKysrKwo+ICBpbmNsdWRlL2RybS9kcm1fdmJsYW5rLmggICAgIHwgIDIgKysKPiAg MiBmaWxlcyBjaGFuZ2VkLCA2MSBpbnNlcnRpb25zKCspCj4gCj4gZGlmZiAtLWdpdCBhL2RyaXZl cnMvZ3B1L2RybS9kcm1fdmJsYW5rLmMgYi9kcml2ZXJzL2dwdS9kcm0vZHJtX3ZibGFuay5jCj4g aW5kZXggMjU1OWQyZDdiOTA3Li4yNjkwOTY2Njk0ZjAgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9n cHUvZHJtL2RybV92YmxhbmsuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9kcm1fdmJsYW5rLmMK PiBAQCAtMTIzNyw2ICsxMjM3LDY1IEBAIHZvaWQgZHJtX2NydGNfdmJsYW5rX29uKHN0cnVjdCBk cm1fY3J0YyAqY3J0YykKPiAgfQo+ICBFWFBPUlRfU1lNQk9MKGRybV9jcnRjX3ZibGFua19vbik7 Cj4gIAo+ICsvKioKPiArICogZHJtX3ZibGFua19yZXN0b3JlIC0gZXN0aW1hdGVkIHZibGFua3Mg dXNpbmcgdGltZXN0YW1wcyBhbmQgdXBkYXRlIGl0Lgo+ICsgKgo+ICsgKiBQb3dlciBtYW5hbWVt ZW50IGZlYXR1cmVzIGNhbiBjYXVzZSBmcmFtZSBjb3VudGVyIHJlc2V0cyBiZXR3ZWVuIHZibGFu awo+ICsgKiBkaXNhYmxlIGFuZCBlbmFibGUuIERyaXZlcnMgY2FuIHRoZW4gdXNlIHRoaXMgZnVu Y3Rpb24gaW4gdGhlaXIKPiArICogJmRybV9jcnRjX2Z1bmNzLmVuYWJsZV92YmxhbmsgaW1wbGVt ZW50YXRpb24gdG8gZXN0aW1hdGUgdGhlIHZibGFua3Mgc2luY2UKPiArICogdGhlIGxhc3QgJmRy bV9jcnRjX2Z1bmNzLmRpc2FibGVfdmJsYW5rLgo+ICsgKgo+ICsgKiBUaGlzIGZ1bmN0aW9uIGlz IHRoZSBsZWdhY3kgdmVyc2lvbiBvZiBkcm1fY3J0Y192YmxhbmtfcmVzdG9yZSgpLgo+ICsgKi8K PiArdm9pZCBkcm1fdmJsYW5rX3Jlc3RvcmUoc3RydWN0IGRybV9kZXZpY2UgKmRldiwgdW5zaWdu ZWQgaW50IHBpcGUpCj4gK3sKPiArCWt0aW1lX3QgdF92Ymxhbms7Cj4gKwlzdHJ1Y3QgZHJtX3Zi bGFua19jcnRjICp2Ymxhbms7Cj4gKwlpbnQgZnJhbWVkdXJfbnM7Cj4gKwl1NjQgZGlmZl9uczsK PiArCXUzMiBjdXJfdmJsYW5rLCBkaWZmID0gMTsKPiArCWludCBjb3VudCA9IERSTV9USU1FU1RB TVBfTUFYUkVUUklFUzsKPiArCj4gKwlpZiAoV0FSTl9PTihwaXBlID49IGRldi0+bnVtX2NydGNz KSkKPiArCQlyZXR1cm47Cj4gKwo+ICsJYXNzZXJ0X3NwaW5fbG9ja2VkKCZkZXYtPnZibF9sb2Nr KTsKPiArCWFzc2VydF9zcGluX2xvY2tlZCgmZGV2LT52YmxhbmtfdGltZV9sb2NrKTsKPiArCj4g Kwl2YmxhbmsgPSAmZGV2LT52YmxhbmtbcGlwZV07Cj4gKwlXQVJOX09OQ0UoKGRybV9kZWJ1ZyAm IERSTV9VVF9WQkwpICYmICF2YmxhbmstPmZyYW1lZHVyX25zLAoKZG8gd2UgcmVhbGx5IG9ubHkg bmVlZCB0aGlzIHdhcm4gb24gZGVidWcgdmxiPwoKPiArCQkgICJDYW5ub3QgY29tcHV0ZSBtaXNz ZWQgdmJsYW5rcyB3aXRob3V0IGZyYW1lIGR1cmF0aW9uXG4iKTsKClRoZSBtZXNzYWdlIHNlZW1z IGhhcmQuLi4gaWYgd2UgKmNhbm5vdCogd2h5IGRvIHdlIG1vdmUgZndkPwoKPiArCWZyYW1lZHVy X25zID0gdmJsYW5rLT5mcmFtZWR1cl9uczsKPiArCj4gKwlkbyB7Cj4gKwkJY3VyX3ZibGFuayA9 IF9fZ2V0X3ZibGFua19jb3VudGVyKGRldiwgcGlwZSk7Cj4gKwkJZHJtX2dldF9sYXN0X3ZibHRp bWVzdGFtcChkZXYsIHBpcGUsICZ0X3ZibGFuaywgZmFsc2UpOwo+ICsJfSB3aGlsZSAoY3VyX3Zi bGFuayAhPSBfX2dldF92YmxhbmtfY291bnRlcihkZXYsIHBpcGUpICYmIC0tY291bnQgPiAwKTsK CkJhc2VkIG9uIHRoZSBjb21tZW5kIG9mIGRybV91cGRhdGVfdmJsYW5rX2NvdW50IEkgZG9uJ3Qg ZmVlbCB0aGF0IHdlIGhhdmUgdG8KZG8gdGhlIGxvb3AgaGVyZS4uLiBBbmQgaWYgd2UgaGF2ZSBt YXliZSB3ZSBzaG91bGQgcmUtb3JnIHRoaW5ncyB0byBhdm9pZApkdXBsaWNhdGlvbj8KCj4gKwo+ ICsJZGlmZl9ucyA9IGt0aW1lX3RvX25zKGt0aW1lX3N1Yih0X3ZibGFuaywgdmJsYW5rLT50aW1l KSk7Cj4gKwlpZiAoZnJhbWVkdXJfbnMpCj4gKwkJZGlmZiA9IERJVl9ST1VORF9DTE9TRVNUX1VM TChkaWZmX25zLCBmcmFtZWR1cl9ucyk7Cj4gKwo+ICsKPiArCURSTV9ERUJVR19WQkwoIm1pc3Nl ZCAlZCB2YmxhbmtzIGluICVsbGQgbnMsIGZyYW1lIGR1cmF0aW9uPSVkIG5zLCBod19kaWZmPSVk XG4iLAo+ICsJCSAgICAgIGRpZmYsIGRpZmZfbnMsIGZyYW1lZHVyX25zLCBjdXJfdmJsYW5rIC0g dmJsYW5rLT5sYXN0KTsKPiArCXN0b3JlX3ZibGFuayhkZXYsIHBpcGUsIGRpZmYsIHRfdmJsYW5r LCBjdXJfdmJsYW5rKTsKCmhtLi4uIEkgd29uZGVyIGlmIHRoZSBzaW1wbGUgc3RvcmVfdmJsYW5r KC4uLiBfX2dldF92YmxhbmtfY291bnRlcihkZXYsIHBpcGUpKTsKd291bGRuJ3Qgd29yayBoZXJl Li4uCgo+ICt9Cj4gK0VYUE9SVF9TWU1CT0woZHJtX3ZibGFua19yZXN0b3JlKTsKPiArCj4gKy8q Kgo+ICsgKiBkcm1fY3J0Y192YmxhbmtfcmVzdG9yZSAtIGVzdGltYXRlIHZibGFua3MgdXNpbmcg dGltZXN0YW1wcyBhbmQgdXBkYXRlIGl0Lgo+ICsgKiBQb3dlciBtYW5hbWVtZW50IGZlYXR1cmVz IGNhbiBjYXVzZSBmcmFtZSBjb3VudGVyIHJlc2V0cyBiZXR3ZWVuIHZibGFuawo+ICsgKiBkaXNh YmxlIGFuZCBlbmFibGUuIERyaXZlcnMgY2FuIHRoZW4gdXNlIHRoaXMgZnVuY3Rpb24gaW4gdGhl aXIKPiArICogJmRybV9jcnRjX2Z1bmNzLmVuYWJsZV92YmxhbmsgaW1wbGVtZW50YXRpb24gdG8g ZXN0aW1hdGUgdGhlIHZibGFua3Mgc2luY2UKPiArICogdGhlIGxhc3QgJmRybV9jcnRjX2Z1bmNz LmRpc2FibGVfdmJsYW5rLgo+ICsgKi8KPiArdm9pZCBkcm1fY3J0Y192YmxhbmtfcmVzdG9yZShz dHJ1Y3QgZHJtX2NydGMgKmNydGMpCj4gK3sKPiArCWRybV92YmxhbmtfcmVzdG9yZShjcnRjLT5k ZXYsIGRybV9jcnRjX2luZGV4KGNydGMpKTsKPiArfQo+ICtFWFBPUlRfU1lNQk9MKGRybV9jcnRj X3ZibGFua19yZXN0b3JlKTsKPiArCj4gIHN0YXRpYyB2b2lkIGRybV9sZWdhY3lfdmJsYW5rX3By ZV9tb2Rlc2V0KHN0cnVjdCBkcm1fZGV2aWNlICpkZXYsCj4gIAkJCQkJICB1bnNpZ25lZCBpbnQg cGlwZSkKPiAgewo+IGRpZmYgLS1naXQgYS9pbmNsdWRlL2RybS9kcm1fdmJsYW5rLmggYi9pbmNs dWRlL2RybS9kcm1fdmJsYW5rLmgKPiBpbmRleCBhNGMzYjBhMGExOTcuLjE2ZDQ2ZTJhNjg1NCAx MDA2NDQKPiAtLS0gYS9pbmNsdWRlL2RybS9kcm1fdmJsYW5rLmgKPiArKysgYi9pbmNsdWRlL2Ry bS9kcm1fdmJsYW5rLmgKPiBAQCAtMTgwLDYgKzE4MCw4IEBAIHZvaWQgZHJtX2NydGNfdmJsYW5r X29mZihzdHJ1Y3QgZHJtX2NydGMgKmNydGMpOwo+ICB2b2lkIGRybV9jcnRjX3ZibGFua19yZXNl dChzdHJ1Y3QgZHJtX2NydGMgKmNydGMpOwo+ICB2b2lkIGRybV9jcnRjX3ZibGFua19vbihzdHJ1 Y3QgZHJtX2NydGMgKmNydGMpOwo+ICB1NjQgZHJtX2NydGNfYWNjdXJhdGVfdmJsYW5rX2NvdW50 KHN0cnVjdCBkcm1fY3J0YyAqY3J0Yyk7Cj4gK3ZvaWQgZHJtX3ZibGFua19yZXN0b3JlKHN0cnVj dCBkcm1fZGV2aWNlICpkZXYsIHVuc2lnbmVkIGludCBwaXBlKTsKPiArdm9pZCBkcm1fY3J0Y192 YmxhbmtfcmVzdG9yZShzdHJ1Y3QgZHJtX2NydGMgKmNydGMpOwo+ICAKPiAgYm9vbCBkcm1fY2Fs Y192Ymx0aW1lc3RhbXBfZnJvbV9zY2Fub3V0cG9zKHN0cnVjdCBkcm1fZGV2aWNlICpkZXYsCj4g IAkJCQkJICAgdW5zaWduZWQgaW50IHBpcGUsIGludCAqbWF4X2Vycm9yLAo+IC0tIAo+IDIuMTEu MAo+IApfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRl bC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6 Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK