From mboxrd@z Thu Jan 1 00:00:00 1970 From: Manasi Navare Subject: [PATCH 4/5] drm/i915: Find fallback link rate/lane count Date: Thu, 17 Nov 2016 23:29:49 -0800 Message-ID: <1479454189-28345-2-git-send-email-manasi.d.navare@intel.com> References: <1479454189-28345-1-git-send-email-manasi.d.navare@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1479454189-28345-1-git-send-email-manasi.d.navare@intel.com> In-Reply-To: <1479453200-27705-5-git-send-email-manasi.d.navare@intel.com> References: <1479453200-27705-5-git-send-email-manasi.d.navare@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Cc: Daniel Vetter List-Id: dri-devel@lists.freedesktop.org SWYgbGluayB0cmFpbmluZyBmYWlscywgdGhlbiB3ZSBuZWVkIHRvIGZhbGxiYWNrIHRvIGxvd2Vy CmxpbmsgcmF0ZSBmaXJzdCBhbmQgaWYgbGluayB0cmFpbmluZyBmYWlscyBhdCBSQlIsIHRoZW4K ZmFsbGJhY2sgdG8gbG93ZXIgbGFuZSBjb3VudC4KVGhpcyBmdW5jdGlvbiBmaW5kcyB0aGUgbmV4 dCBsb3dlciBsaW5rIHJhdGUvbGFuZSBjb3VudAp2YWx1ZSBhZnRlciBsaW5rIHRyYWluaW5nIGZh aWx1cmUuCgp2NDoKKiBSZW1vdmUgdGhlIHJlZHVuZGFudCB2YXJpYWJsZSBsaW5rX3RyYWluX2Zh aWxlZAp2MzoKKiBSZW1vdmUgZmFsbGJhY2tfbGlua19yYXRlX2luZGV4IHZhcmlhYmxlLCBqdXN0 IG9idGFpbgp0aGF0IHVzaW5nIHRoZSBoZWxwZXIgaW50ZWxfZHBfbGlua19yYXRlX2luZGV4IChK YW5pIE5pa3VsYSkKdjI6ClNxdWFzaCB0aGUgcGF0Y2ggdGhhdCByZXR1cm5zIHRoZSBsaW5rIHJh dGUgaW5kZXggKEphbmkgTmlrdWxhKQoKQWNrZWQtYnk6IFRvbnkgQ2hlbmcgPHRvbnkuY2hlbmdA YW1kLmNvbT4KQWNrZWQtYnk6IEhhcnJ5IFdlbnRsYW5kIDxoYXJyeS53ZW50bGFuZEBhbWQuY29t PgpDYzogVmlsbGUgU3lyamFsYSA8dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+CkNjOiBK YW5pIE5pa3VsYSA8amFuaS5uaWt1bGFAbGludXguaW50ZWwuY29tPgpDYzogRGFuaWVsIFZldHRl ciA8ZGFuaWVsLnZldHRlckBpbnRlbC5jb20+ClNpZ25lZC1vZmYtYnk6IE1hbmFzaSBOYXZhcmUg PG1hbmFzaS5kLm5hdmFyZUBpbnRlbC5jb20+Ci0tLQogZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50 ZWxfZHAuYyAgfCA0MCArKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrCiBk cml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcnYuaCB8ICA0ICsrKysKIDIgZmlsZXMgY2hhbmdl ZCwgNDQgaW5zZXJ0aW9ucygrKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2lu dGVsX2RwLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcC5jCmluZGV4IDkwMjgzZWQu LjRmYjg5ZTEgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMKKysr IGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYwpAQCAtMjg4LDYgKzI4OCw0NiBAQCBz dGF0aWMgaW50IGludGVsX2RwX2NvbW1vbl9yYXRlcyhzdHJ1Y3QgaW50ZWxfZHAgKmludGVsX2Rw LAogCQkJICAgICAgIGNvbW1vbl9yYXRlcyk7CiB9CiAKK3N0YXRpYyBpbnQgaW50ZWxfZHBfbGlu a19yYXRlX2luZGV4KHN0cnVjdCBpbnRlbF9kcCAqaW50ZWxfZHAsCisJCQkJICAgIGludCAqY29t bW9uX3JhdGVzLCBpbnQgbGlua19yYXRlKQoreworCWludCBjb21tb25fbGVuOworCWludCBpbmRl eDsKKworCWNvbW1vbl9sZW4gPSBpbnRlbF9kcF9jb21tb25fcmF0ZXMoaW50ZWxfZHAsIGNvbW1v bl9yYXRlcyk7CisJZm9yIChpbmRleCA9IDA7IGluZGV4IDwgY29tbW9uX2xlbjsgaW5kZXgrKykg eworCQlpZiAobGlua19yYXRlID09IGNvbW1vbl9yYXRlc1tjb21tb25fbGVuIC0gaW5kZXggLSAx XSkKKwkJCXJldHVybiBjb21tb25fbGVuIC0gaW5kZXggLSAxOworCX0KKworCXJldHVybiAtMTsK K30KKworaW50IGludGVsX2RwX2dldF9saW5rX3RyYWluX2ZhbGxiYWNrX3ZhbHVlcyhzdHJ1Y3Qg aW50ZWxfZHAgKmludGVsX2RwLAorCQkJCQkgICAgaW50IGxpbmtfcmF0ZSwgdWludDhfdCBsYW5l X2NvdW50KQoreworCWludCBjb21tb25fcmF0ZXNbRFBfTUFYX1NVUFBPUlRFRF9SQVRFU10gPSB7 fTsKKwlpbnQgY29tbW9uX2xlbjsKKwlpbnQgbGlua19yYXRlX2luZGV4ID0gLTE7CisKKwljb21t b25fbGVuID0gaW50ZWxfZHBfY29tbW9uX3JhdGVzKGludGVsX2RwLCBjb21tb25fcmF0ZXMpOwor CWxpbmtfcmF0ZV9pbmRleCA9IGludGVsX2RwX2xpbmtfcmF0ZV9pbmRleChpbnRlbF9kcCwKKwkJ CQkJCSAgIGNvbW1vbl9yYXRlcywKKwkJCQkJCSAgIGxpbmtfcmF0ZSk7CisJaWYgKGxpbmtfcmF0 ZV9pbmRleCA+IDApIHsKKwkJaW50ZWxfZHAtPmZhbGxiYWNrX2xpbmtfcmF0ZSA9IGNvbW1vbl9y YXRlc1tsaW5rX3JhdGVfaW5kZXggLSAxXTsKKwkJaW50ZWxfZHAtPmZhbGxiYWNrX2xhbmVfY291 bnQgPSBpbnRlbF9kcF9tYXhfbGFuZV9jb3VudChpbnRlbF9kcCk7CisJfSBlbHNlIGlmIChsYW5l X2NvdW50ID4gMSkgeworCQlpbnRlbF9kcC0+ZmFsbGJhY2tfbGlua19yYXRlID0gY29tbW9uX3Jh dGVzW2NvbW1vbl9sZW4gLSAxXTsKKwkJaW50ZWxfZHAtPmZhbGxiYWNrX2xhbmVfY291bnQgPSBs YW5lX2NvdW50ID4+IDE7CisJfSBlbHNlIHsKKwkJRFJNX0VSUk9SKCJMaW5rIFRyYWluaW5nIFVu c3VjY2Vzc2Z1bFxuIik7CisJCXJldHVybiAtMTsKKwl9CisKKwlyZXR1cm4gMDsKK30KKwogc3Rh dGljIGVudW0gZHJtX21vZGVfc3RhdHVzCiBpbnRlbF9kcF9tb2RlX3ZhbGlkKHN0cnVjdCBkcm1f Y29ubmVjdG9yICpjb25uZWN0b3IsCiAJCSAgICBzdHJ1Y3QgZHJtX2Rpc3BsYXlfbW9kZSAqbW9k ZSkKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rydi5oIGIvZHJpdmVy cy9ncHUvZHJtL2k5MTUvaW50ZWxfZHJ2LmgKaW5kZXggY2QxMzJjMi4uZTFjNDNhOSAxMDA2NDQK LS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHJ2LmgKKysrIGIvZHJpdmVycy9ncHUv ZHJtL2k5MTUvaW50ZWxfZHJ2LmgKQEAgLTg4Nyw2ICs4ODcsOCBAQCBzdHJ1Y3QgaW50ZWxfZHAg ewogCXVpbnQzMl90IERQOwogCWludCBsaW5rX3JhdGU7CiAJdWludDhfdCBsYW5lX2NvdW50Owor CWludCBmYWxsYmFja19saW5rX3JhdGU7CisJdWludDhfdCBmYWxsYmFja19sYW5lX2NvdW50Owog CXVpbnQ4X3Qgc2lua19jb3VudDsKIAlib29sIGxpbmtfbXN0OwogCWJvb2wgaGFzX2F1ZGlvOwpA QCAtMTM4Myw2ICsxMzg1LDggQEAgYm9vbCBpbnRlbF9kcF9pbml0X2Nvbm5lY3RvcihzdHJ1Y3Qg aW50ZWxfZGlnaXRhbF9wb3J0ICppbnRlbF9kaWdfcG9ydCwKIHZvaWQgaW50ZWxfZHBfc2V0X2xp bmtfcGFyYW1zKHN0cnVjdCBpbnRlbF9kcCAqaW50ZWxfZHAsCiAJCQkgICAgICBpbnQgbGlua19y YXRlLCB1aW50OF90IGxhbmVfY291bnQsCiAJCQkgICAgICBib29sIGxpbmtfbXN0KTsKK2ludCBp bnRlbF9kcF9nZXRfbGlua190cmFpbl9mYWxsYmFja192YWx1ZXMoc3RydWN0IGludGVsX2RwICpp bnRlbF9kcCwKKwkJCQkJICAgIGludCBsaW5rX3JhdGUsIHVpbnQ4X3QgbGFuZV9jb3VudCk7CiB2 b2lkIGludGVsX2RwX3N0YXJ0X2xpbmtfdHJhaW4oc3RydWN0IGludGVsX2RwICppbnRlbF9kcCk7 CiB2b2lkIGludGVsX2RwX3N0b3BfbGlua190cmFpbihzdHJ1Y3QgaW50ZWxfZHAgKmludGVsX2Rw KTsKIHZvaWQgaW50ZWxfZHBfc2lua19kcG1zKHN0cnVjdCBpbnRlbF9kcCAqaW50ZWxfZHAsIGlu dCBtb2RlKTsKLS0gCjEuOS4xCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVz a3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9p bnRlbC1nZngK