From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Kumar, Mahesh" Subject: [PATCH v3 6/9] drm/i915/skl+: change WM calc to fixed point 16.16 Date: Fri, 9 Sep 2016 13:31:03 +0530 Message-ID: <20160909080106.17506-7-mahesh1.kumar@intel.com> References: <20160909080106.17506-1-mahesh1.kumar@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 751496E72B for ; Fri, 9 Sep 2016 07:57:42 +0000 (UTC) In-Reply-To: <20160909080106.17506-1-mahesh1.kumar@intel.com> 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: paulo.r.zanoni@intel.com List-Id: intel-gfx@lists.freedesktop.org RnJvbTogTWFoZXNoIEt1bWFyIDxtYWhlc2gxLmt1bWFyQGludGVsLmNvbT4KClRoaXMgcGF0Y2gg Y2hhbmdlcyBXYXRlcm1hayBjYWxjdWxhdGlvbiB0byBmaXhlZCBwb2ludCBjYWxjdWxhdGlvbi4K UHJvYmxlbSB3aXRoIGN1cnJlbnQgY2FsY3VsYXRpb24gaXMgZHVyaW5nIHBsYW5lX2Jsb2Nrc19w ZXJfbGluZQpjYWxjdWxhdGlvbiB3ZSBkaXZpZGUgaW50ZXJtZWRpYXRlIGJsb2NrcyB3aXRoIG1p bl9zY2FubGluZXMgYW5kCnRha2VzIGZsb29yIG9mIHRoZSByZXN1bHQgYmVjYXVzZSBvZiBpbnRl Z2VyIG9wZXJhdGlvbi4KaGVuY2Ugd2UgZW5kLXVwIGFzc2lnbmluZyBsZXNzIGJsb2NrcyB0aGFu IHJlcXVpcmVkLiBXaGljaCBsZWFkcyB0bwpmbGlja2Vycy4KClNpZ25lZC1vZmYtYnk6IE1haGVz aCBLdW1hciA8bWFoZXNoMS5rdW1hckBpbnRlbC5jb20+Ci0tLQogZHJpdmVycy9ncHUvZHJtL2k5 MTUvaW50ZWxfcG0uYyB8IDIzICsrKysrKysrKysrKysrLS0tLS0tLS0tCiAxIGZpbGUgY2hhbmdl ZCwgMTQgaW5zZXJ0aW9ucygrKSwgOSBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9kcml2ZXJz L2dwdS9kcm0vaTkxNS9pbnRlbF9wbS5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcG0u YwppbmRleCAwZWMzMjhiLi5kNDM5MGU0IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkx NS9pbnRlbF9wbS5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3BtLmMKQEAgLTM1 MzAsMTMgKzM1MzAsMTUgQEAgc3RhdGljIHVpbnQzMl90IHNrbF9waXBlX3BpeGVsX3JhdGUoY29u c3Qgc3RydWN0IGludGVsX2NydGNfc3RhdGUgKmNvbmZpZykKICovCiBzdGF0aWMgdWludDMyX3Qg c2tsX3dtX21ldGhvZDEodWludDMyX3QgcGl4ZWxfcmF0ZSwgdWludDhfdCBjcHAsIHVpbnQzMl90 IGxhdGVuY3kpCiB7Ci0JdWludDMyX3Qgd21faW50ZXJtZWRpYXRlX3ZhbCwgcmV0OworCXVpbnQ2 NF90IHdtX2ludGVybWVkaWF0ZV92YWw7CisJdWludDMyX3QgcmV0OwogCiAJaWYgKGxhdGVuY3kg PT0gMCkKIAkJcmV0dXJuIFVJTlRfTUFYOwogCi0Jd21faW50ZXJtZWRpYXRlX3ZhbCA9IGxhdGVu Y3kgKiBwaXhlbF9yYXRlICogY3BwIC8gNTEyOwotCXJldCA9IERJVl9ST1VORF9VUCh3bV9pbnRl cm1lZGlhdGVfdmFsLCAxMDAwKTsKKwl3bV9pbnRlcm1lZGlhdGVfdmFsID0gbGF0ZW5jeSAqIHBp eGVsX3JhdGUgKiBjcHA7CisJd21faW50ZXJtZWRpYXRlX3ZhbCA8PD0gMTY7CisJcmV0ID0gRElW X1JPVU5EX1VQX1VMTCh3bV9pbnRlcm1lZGlhdGVfdmFsLCAxMDAwICogNTEyKTsKIAogCXJldHVy biByZXQ7CiB9CkBAIC0zNjA1LDYgKzM2MDcsNyBAQCBzdGF0aWMgaW50IHNrbF9jb21wdXRlX3Bs YW5lX3dtKGNvbnN0IHN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiwKIAl1aW50MTZf dCAqb3V0X2Jsb2NrcyA9ICZyZXN1bHQtPnBsYW5lX3Jlc19iW2lkXTsKIAl1aW50OF90ICpvdXRf bGluZXMgPSAmcmVzdWx0LT5wbGFuZV9yZXNfbFtpZF07CiAJZW51bSB3YXRlcm1hcmtfbWVtb3J5 X3dhIG1lbV93YTsKKwlib29sIHlfdGlsZWQgPSBmYWxzZTsKIAogCWlmIChsYXRlbmN5ID09IDAg fHwgIWNzdGF0ZS0+YmFzZS5hY3RpdmUgfHwgIWludGVsX3BzdGF0ZS0+YmFzZS52aXNpYmxlKQog CQlyZXR1cm4gMDsKQEAgLTM2NTIsMTQgKzM2NTUsMTggQEAgc3RhdGljIGludCBza2xfY29tcHV0 ZV9wbGFuZV93bShjb25zdCBzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYsCiAJcGxh bmVfYnl0ZXNfcGVyX2xpbmUgPSB3aWR0aCAqIGNwcDsKIAlpZiAoZmItPm1vZGlmaWVyWzBdID09 IEk5MTVfRk9STUFUX01PRF9ZX1RJTEVEIHx8CiAJICAgIGZiLT5tb2RpZmllclswXSA9PSBJOTE1 X0ZPUk1BVF9NT0RfWWZfVElMRUQpIHsKKwkJeV90aWxlZCA9IHRydWU7CiAJCXBsYW5lX2Jsb2Nr c19wZXJfbGluZSA9CiAJCSAgICAgIERJVl9ST1VORF9VUChwbGFuZV9ieXRlc19wZXJfbGluZSAq IHlfbWluX3NjYW5saW5lcywgNTEyKTsKLQkJcGxhbmVfYmxvY2tzX3Blcl9saW5lIC89IHlfbWlu X3NjYW5saW5lczsKKwkJcGxhbmVfYmxvY2tzX3Blcl9saW5lID0gKHBsYW5lX2Jsb2Nrc19wZXJf bGluZSA8PCAxNikgLworCQkJCQkJCQl5X21pbl9zY2FubGluZXM7CiAJfSBlbHNlIGlmIChmYi0+ bW9kaWZpZXJbMF0gPT0gRFJNX0ZPUk1BVF9NT0RfTk9ORSkgewogCQlwbGFuZV9ibG9ja3NfcGVy X2xpbmUgPSBESVZfUk9VTkRfVVAocGxhbmVfYnl0ZXNfcGVyX2xpbmUsIDUxMikKIAkJCQkJKyAx OworCQlwbGFuZV9ibG9ja3NfcGVyX2xpbmUgPDw9IDE2OwogCX0gZWxzZSB7CiAJCXBsYW5lX2Js b2Nrc19wZXJfbGluZSA9IERJVl9ST1VORF9VUChwbGFuZV9ieXRlc19wZXJfbGluZSwgNTEyKTsK KwkJcGxhbmVfYmxvY2tzX3Blcl9saW5lIDw8PSAxNjsKIAl9CiAKIAltZXRob2QxID0gc2tsX3dt X21ldGhvZDEocGxhbmVfcGl4ZWxfcmF0ZSwgY3BwLCBsYXRlbmN5KTsKQEAgLTM2NzAsOCArMzY3 Nyw3IEBAIHN0YXRpYyBpbnQgc2tsX2NvbXB1dGVfcGxhbmVfd20oY29uc3Qgc3RydWN0IGRybV9p OTE1X3ByaXZhdGUgKmRldl9wcml2LAogCiAJeV90aWxlX21pbmltdW0gPSBwbGFuZV9ibG9ja3Nf cGVyX2xpbmUgKiB5X21pbl9zY2FubGluZXM7CiAKLQlpZiAoZmItPm1vZGlmaWVyWzBdID09IEk5 MTVfRk9STUFUX01PRF9ZX1RJTEVEIHx8Ci0JICAgIGZiLT5tb2RpZmllclswXSA9PSBJOTE1X0ZP Uk1BVF9NT0RfWWZfVElMRUQpIHsKKwlpZiAoeV90aWxlZCkgewogCQlzZWxlY3RlZF9yZXN1bHQg PSBtYXgobWV0aG9kMiwgeV90aWxlX21pbmltdW0pOwogCX0gZWxzZSB7CiAJCXVpbnQzMl90IGxp bmV0aW1lX3VzID0gMDsKQEAgLTM2ODgsMTIgKzM2OTQsMTEgQEAgc3RhdGljIGludCBza2xfY29t cHV0ZV9wbGFuZV93bShjb25zdCBzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYsCiAJ CQlzZWxlY3RlZF9yZXN1bHQgPSBtZXRob2QxOwogCX0KIAotCXJlc19ibG9ja3MgPSBzZWxlY3Rl ZF9yZXN1bHQgKyAxOworCXJlc19ibG9ja3MgPSBESVZfUk9VTkRfVVAoc2VsZWN0ZWRfcmVzdWx0 LCAxIDw8IDE2KSArIDE7CiAJcmVzX2xpbmVzID0gRElWX1JPVU5EX1VQKHNlbGVjdGVkX3Jlc3Vs dCwgcGxhbmVfYmxvY2tzX3Blcl9saW5lKTsKIAogCWlmIChsZXZlbCA+PSAxICYmIGxldmVsIDw9 IDcpIHsKLQkJaWYgKGZiLT5tb2RpZmllclswXSA9PSBJOTE1X0ZPUk1BVF9NT0RfWV9USUxFRCB8 fAotCQkgICAgZmItPm1vZGlmaWVyWzBdID09IEk5MTVfRk9STUFUX01PRF9ZZl9USUxFRCkgewor CQlpZiAoeV90aWxlZCkgewogCQkJcmVzX2Jsb2NrcyArPSB5X3RpbGVfbWluaW11bTsKIAkJCXJl c19saW5lcyArPSB5X21pbl9zY2FubGluZXM7CiAJCX0gZWxzZSB7Ci0tIAoyLjguMwoKX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxp bmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJl ZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==