From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [RFC 3/7] drm/i915/dsi: Add vblank calculation for command mode Date: Tue, 15 Oct 2019 21:45:20 +0300 Message-ID: <87tv89alvj.fsf@intel.com> References: <20191014110122.31923-1-vandita.kulkarni@intel.com> <20191014110122.31923-4-vandita.kulkarni@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9FAA06E394 for ; Tue, 15 Oct 2019 18:44:25 +0000 (UTC) In-Reply-To: <20191014110122.31923-4-vandita.kulkarni@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Vandita Kulkarni , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gTW9uLCAxNCBPY3QgMjAxOSwgVmFuZGl0YSBLdWxrYXJuaSA8dmFuZGl0YS5rdWxrYXJuaUBp bnRlbC5jb20+IHdyb3RlOgo+IFRyYW5zY29kZXIgdGltaW5nIGNhbGN1bGF0aW9uIGRpZmZlciBm b3IgY29tbWFuZCBtb2RlLgo+Cj4gU2lnbmVkLW9mZi1ieTogVmFuZGl0YSBLdWxrYXJuaSA8dmFu ZGl0YS5rdWxrYXJuaUBpbnRlbC5jb20+Cj4gLS0tCj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2Rp c3BsYXkvaWNsX2RzaS5jIHwgNTYgKysrKysrKysrKysrKysrKystLS0tLS0tLS0KPiAgMSBmaWxl IGNoYW5nZWQsIDM3IGluc2VydGlvbnMoKyksIDE5IGRlbGV0aW9ucygtKQo+Cj4gZGlmZiAtLWdp dCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2Rpc3BsYXkvaWNsX2RzaS5jIGIvZHJpdmVycy9ncHUv ZHJtL2k5MTUvZGlzcGxheS9pY2xfZHNpLmMKPiBpbmRleCA4ZTZjMDlhMWRiNzguLjVkZDllZWJh YjZiMSAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNwbGF5L2ljbF9kc2ku Ywo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2Rpc3BsYXkvaWNsX2RzaS5jCj4gQEAgLTc4 MCw2ICs3ODAsNyBAQCBnZW4xMV9kc2lfc2V0X3RyYW5zY29kZXJfdGltaW5ncyhzdHJ1Y3QgaW50 ZWxfZW5jb2RlciAqZW5jb2RlciwKPiAgCXUxNiBoYmFja19wb3JjaDsKPiAgCS8qIHZlcnRpY2Fs IHRpbWluZ3MgKi8KPiAgCXUxNiB2dG90YWwsIHZhY3RpdmUsIHZzeW5jX3N0YXJ0LCB2c3luY19l bmQsIHZzeW5jX3NoaWZ0Owo+ICsJaW50IGJwcCwgbGluZV90aW1lX3VzLCBieXRlX2Nsa19wZXJp b2RfbnM7Cj4gIAo+ICAJaGFjdGl2ZSA9IGFkanVzdGVkX21vZGUtPmNydGNfaGRpc3BsYXk7Cj4g IAlodG90YWwgPSBhZGp1c3RlZF9tb2RlLT5jcnRjX2h0b3RhbDsKPiBAQCAtODQxLDQwICs4NDIs NTcgQEAgZ2VuMTFfZHNpX3NldF90cmFuc2NvZGVyX3RpbWluZ3Moc3RydWN0IGludGVsX2VuY29k ZXIgKmVuY29kZXIsCj4gIAl9Cj4gIAo+ICAJLyogcHJvZ3JhbSBUUkFOU19WVE9UQUwgcmVnaXN0 ZXIgKi8KPiAtCWZvcl9lYWNoX2RzaV9wb3J0KHBvcnQsIGludGVsX2RzaS0+cG9ydHMpIHsKPiAt CQlkc2lfdHJhbnMgPSBkc2lfcG9ydF90b190cmFuc2NvZGVyKHBvcnQpOwo+IC0JCS8qCj4gLQkJ ICogRklYTUU6IFByb2dyYW1pbmcgdGhpcyBieSBhc3N1bWluZyBwcm9ncmVzc2l2ZSBtb2RlLCBz aW5jZQo+IC0JCSAqIG5vbi1pbnRlcmxhY2VkIGluZm8gZnJvbSBWQlQgaXMgbm90IHNhdmVkIGlu c2lkZQo+IC0JCSAqIHN0cnVjdCBkcm1fZGlzcGxheV9tb2RlLgo+IC0JCSAqIEZvciBpbnRlcmxh Y2UgbW9kZTogcHJvZ3JhbSByZXF1aXJlZCBwaXhlbCBtaW51cyAyCj4gLQkJICovCj4gLQkJSTkx NV9XUklURShWVE9UQUwoZHNpX3RyYW5zKSwKPiAtCQkJICAgKHZhY3RpdmUgLSAxKSB8ICgodnRv dGFsIC0gMSkgPDwgMTYpKTsKPiArCWlmIChpbnRlbF9kc2ktPm9wZXJhdGlvbl9tb2RlID09IElO VEVMX0RTSV9WSURFT19NT0RFKSB7CgpUaGVyZSdzIGlzX3ZpZF9tb2RlKCkgYW5kIGlzX2NtZF9t b2RlKCkuIFVzZSB0aGVtIHRocm91Z2hvdXQgdGhlIHNlcmllcwppbnN0ZWFkIG9mIHRoZSBhYm92 ZS4KCj4gKwkJZm9yX2VhY2hfZHNpX3BvcnQocG9ydCwgaW50ZWxfZHNpLT5wb3J0cykgewo+ICsJ CQlkc2lfdHJhbnMgPSBkc2lfcG9ydF90b190cmFuc2NvZGVyKHBvcnQpOwo+ICsJCQkvKgo+ICsJ CQkgKiBGSVhNRTogUHJvZ3JhbWluZyB0aGlzIGJ5IGFzc3VtaW5nIHByb2dyZXNzaXZlIG1vZGUs Cj4gKwkJCSAqIHNpbmNlIG5vbi1pbnRlcmxhY2VkIGluZm8gZnJvbSBWQlQgaXMgbm90IHNhdmVk Cj4gKwkJCSAqIGluc2lkZSBzdHJ1Y3QgZHJtX2Rpc3BsYXlfbW9kZS4KPiArCQkJICogRm9yIGlu dGVybGFjZSBtb2RlOiBwcm9ncmFtIHJlcXVpcmVkIHBpeGVsIG1pbnVzIDIKPiArCQkJICovCj4g KwkJCUk5MTVfV1JJVEUoVlRPVEFMKGRzaV90cmFucyksCj4gKwkJCQkgICAodmFjdGl2ZSAtIDEp IHwgKCh2dG90YWwgLSAxKSA8PCAxNikpOwo+ICsJCX0KPiArCX0gZWxzZSB7Cj4gKwkJZm9yX2Vh Y2hfZHNpX3BvcnQocG9ydCwgaW50ZWxfZHNpLT5wb3J0cykgewo+ICsJCQlicHAgPSBtaXBpX2Rz aV9waXhlbF9mb3JtYXRfdG9fYnBwKGludGVsX2RzaS0+cGl4ZWxfZm9ybWF0KTsKPiArCQkJYnl0 ZV9jbGtfcGVyaW9kX25zID0gOCAqIDEwMDAwMDAgLyBpbnRlbF9kc2ktPnBjbGs7Cj4gKwkJCWh0 b3RhbCA9IGhhY3RpdmUgKyAxNjA7Cj4gKwkJCWxpbmVfdGltZV91cyA9IChodG90YWwgKiAoYnBw IC8gOCkgKiBieXRlX2Nsa19wZXJpb2RfbnMpIC8gKDEwMDAgKiBpbnRlbF9kc2ktPmxhbmVfY291 bnQpOwo+ICsJCQl2dG90YWwgPSB2YWN0aXZlICsgRElWX1JPVU5EX1VQKDQ2MCwgbGluZV90aW1l X3VzKTsKClRoaXMgaXMgYSBiaXQgaGFuZC13YXZ5LCBidXQgc29tZSBvZiB0aGVzZSBzZWVtIHN1 c3BpY2lvdXMuIFNvbWVvbmUodG0pCm5lZWRzIHRvIGdvIHRocm91Z2ggdGhlc2UgaW4gZGV0YWls LgoKPiArCQkJSTkxNV9XUklURShWVE9UQUwoZHNpX3RyYW5zKSwKPiArCQkJCSAgICh2YWN0aXZl IC0gMSkgfCAoKHZ0b3RhbCAtIDEpIDw8IDE2KSk7Cj4gKwkJfQo+ICAJfQoKQXMgdGhlIEk5MTVf V1JJVEUoKSBpcyB0aGUgc2FtZSBmb3IgYm90aCwgYWxiZWl0IHdpdGggY2hhbmdlZCB2YWx1ZXMg Zm9yCmNtZCBtb2RlLCBJIHRoaW5rIGl0IHdvdWxkIGJlIGJldHRlciB0byBoYXZlIHRoZSBtb2Rl IGNoZWNrIHdpdGhpbiB0aGUKZm9yX2VhY2hfZHNpX3BvcnQoKSBibG9jay4KCj4gIAo+ICsKPiAg CWlmICh2c3luY19lbmQgPCB2c3luY19zdGFydCB8fCB2c3luY19lbmQgPiB2dG90YWwpCj4gIAkJ RFJNX0VSUk9SKCJJbnZhbGlkIHZzeW5jX2VuZCB2YWx1ZVxuIik7Cj4gIAo+ICAJaWYgKHZzeW5j X3N0YXJ0IDwgdmFjdGl2ZSkKPiAgCQlEUk1fRVJST1IoInZzeW5jX3N0YXJ0IGxlc3MgdGhhbiB2 YWN0aXZlXG4iKTsKPiAgCj4gLQkvKiBwcm9ncmFtIFRSQU5TX1ZTWU5DIHJlZ2lzdGVyICovCj4g LQlmb3JfZWFjaF9kc2lfcG9ydChwb3J0LCBpbnRlbF9kc2ktPnBvcnRzKSB7Cj4gLQkJZHNpX3Ry YW5zID0gZHNpX3BvcnRfdG9fdHJhbnNjb2Rlcihwb3J0KTsKPiAtCQlJOTE1X1dSSVRFKFZTWU5D KGRzaV90cmFucyksCj4gLQkJCSAgICh2c3luY19zdGFydCAtIDEpIHwgKCh2c3luY19lbmQgLSAx KSA8PCAxNikpOwo+ICsJLyogcHJvZ3JhbSBUUkFOU19WU1lOQyByZWdpc3RlciBmb3IgdmlkZW8g bW9kZSBvbmx5ICovCj4gKwlpZiAoaW50ZWxfZHNpLT5vcGVyYXRpb25fbW9kZSA9PSBJTlRFTF9E U0lfVklERU9fTU9ERSkgewo+ICsJCWZvcl9lYWNoX2RzaV9wb3J0KHBvcnQsIGludGVsX2RzaS0+ cG9ydHMpIHsKPiArCQkJZHNpX3RyYW5zID0gZHNpX3BvcnRfdG9fdHJhbnNjb2Rlcihwb3J0KTsK PiArCQkJSTkxNV9XUklURShWU1lOQyhkc2lfdHJhbnMpLAo+ICsJCQkJICAgKHZzeW5jX3N0YXJ0 IC0gMSkgfCAoKHZzeW5jX2VuZCAtIDEpIDw8IDE2KSk7Cj4gKwkJfQo+ICAJfQo+ICAKPiAgCS8q Cj4gLQkgKiBGSVhNRTogSXQgaGFzIHRvIGJlIHByb2dyYW1tZWQgb25seSBmb3IgaW50ZXJsYWNl ZAo+ICsJICogRklYTUU6IEl0IGhhcyB0byBiZSBwcm9ncmFtbWVkIG9ubHkgZm9yIHZpZGVvIG1v ZGVzIGFuZCBpbnRlcmxhY2VkCj4gIAkgKiBtb2Rlcy4gUHV0IHRoZSBjaGVjayBjb25kaXRpb24g aGVyZSBvbmNlIGludGVybGFjZWQKPiAgCSAqIGluZm8gYXZhaWxhYmxlIGFzIGRlc2NyaWJlZCBh Ym92ZS4KPiAgCSAqIHByb2dyYW0gVFJBTlNfVlNZTkNTSElGVCByZWdpc3Rlcgo+ICAJICovCj4g LQlmb3JfZWFjaF9kc2lfcG9ydChwb3J0LCBpbnRlbF9kc2ktPnBvcnRzKSB7Cj4gLQkJZHNpX3Ry YW5zID0gZHNpX3BvcnRfdG9fdHJhbnNjb2Rlcihwb3J0KTsKPiAtCQlJOTE1X1dSSVRFKFZTWU5D U0hJRlQoZHNpX3RyYW5zKSwgdnN5bmNfc2hpZnQpOwo+ICsJaWYgKGludGVsX2RzaS0+b3BlcmF0 aW9uX21vZGUgPT0gSU5URUxfRFNJX1ZJREVPX01PREUpIHsKPiArCQlmb3JfZWFjaF9kc2lfcG9y dChwb3J0LCBpbnRlbF9kc2ktPnBvcnRzKSB7Cj4gKwkJCWRzaV90cmFucyA9IGRzaV9wb3J0X3Rv X3RyYW5zY29kZXIocG9ydCk7Cj4gKwkJCUk5MTVfV1JJVEUoVlNZTkNTSElGVChkc2lfdHJhbnMp LCB2c3luY19zaGlmdCk7Cj4gKwkJfQo+ICAJfQo+ICAKPiAgCS8qIHByb2dyYW0gVFJBTlNfVkJM QU5LIHJlZ2lzdGVyLCBzaG91bGQgYmUgc2FtZSBhcyB2dG90YWwgcHJvZ3JhbW1lZCAqLwoKLS0g CkphbmkgTmlrdWxhLCBJbnRlbCBPcGVuIFNvdXJjZSBHcmFwaGljcyBDZW50ZXIKX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcg bGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRl c2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4