From mboxrd@z Thu Jan 1 00:00:00 1970 From: Harry Wentland Subject: [PATCH 06/34] drm/amd/display: Retry when read dpcd caps failed. Date: Tue, 20 Mar 2018 15:12:31 -0400 Message-ID: <20180320191259.14453-7-harry.wentland@amd.com> References: <20180320191259.14453-1-harry.wentland@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20180320191259.14453-1-harry.wentland-5C7GfCeVMHo@public.gmane.org> List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "amd-gfx" To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Cc: Yongqiang Sun RnJvbTogWW9uZ3FpYW5nIFN1biA8eW9uZ3FpYW5nLnN1bkBhbWQuY29tPgoKU29tZSBEUCBwYW5l bCBub3QgZGV0ZWN0ZWQgaW50ZXJtaXR0ZW50bHkgZHVlIHRvIHJlYWQgZHBjZApjYXBzIGZhaWxl ZCB3aGVuIGRvaW5nIGhvdCBwbHVnLgpbcm9vdCBjYXVzZV0gRENfSFBEX0NPTk5FQ1RfSU5UX0RF TEFZIGlzIHNldCB0byAwLCBub3QgZGVsYXkKYWZ0ZXIgSFBEIHRvZ2dsZSBhbmQgcmVhZCBkcGNk IGRhdGEsIHdoaWxlIHNvbWUgcGFuZWwgbmVlZCA0bXMgZGVmZXIKdG8gcmVhZC4KW3NvbHV0aW9u XSBBZGQgYSByZXRyeSB3aGVuIHJlYWQgZmFpbGVkLgoKU2lnbmVkLW9mZi1ieTogWW9uZ3FpYW5n IFN1biA8eW9uZ3FpYW5nLnN1bkBhbWQuY29tPgpSZXZpZXdlZC1ieTogVG9ueSBDaGVuZyA8VG9u eS5DaGVuZ0BhbWQuY29tPgpBY2tlZC1ieTogSGFycnkgV2VudGxhbmQgPGhhcnJ5LndlbnRsYW5k QGFtZC5jb20+Ci0tLQogZHJpdmVycy9ncHUvZHJtL2FtZC9kaXNwbGF5L2RjL2NvcmUvZGNfbGlu a19kcC5jIHwgMTYgKysrKysrKysrKystLS0tLQogMSBmaWxlIGNoYW5nZWQsIDExIGluc2VydGlv bnMoKyksIDUgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2FtZC9k aXNwbGF5L2RjL2NvcmUvZGNfbGlua19kcC5jIGIvZHJpdmVycy9ncHUvZHJtL2FtZC9kaXNwbGF5 L2RjL2NvcmUvZGNfbGlua19kcC5jCmluZGV4IDNiNTA1MzU3MDIyOS4uYjg2MzI1YmI2MzZmIDEw MDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2Rpc3BsYXkvZGMvY29yZS9kY19saW5rX2Rw LmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2FtZC9kaXNwbGF5L2RjL2NvcmUvZGNfbGlua19kcC5j CkBAIC0yMjc4LDYgKzIyNzgsOCBAQCBzdGF0aWMgYm9vbCByZXRyaWV2ZV9saW5rX2NhcChzdHJ1 Y3QgZGNfbGluayAqbGluaykKIAl1bmlvbiBlZHBfY29uZmlndXJhdGlvbl9jYXAgZWRwX2NvbmZp Z19jYXA7CiAJdW5pb24gZHBfZG93bnN0cmVhbV9wb3J0X3ByZXNlbnQgZHNfcG9ydCA9IHsgMCB9 OwogCWVudW0gZGNfc3RhdHVzIHN0YXR1cyA9IERDX0VSUk9SX1VORVhQRUNURUQ7CisJdWludDMy X3QgcmVhZF9kcGNkX3JldHJ5X2NudCA9IDM7CisJaW50IGk7CiAKIAltZW1zZXQoZHBjZF9kYXRh LCAnXDAnLCBzaXplb2YoZHBjZF9kYXRhKSk7CiAJbWVtc2V0KCZkb3duX3N0cm1fcG9ydF9jb3Vu dCwKQEAgLTIyODUsMTEgKzIyODcsMTUgQEAgc3RhdGljIGJvb2wgcmV0cmlldmVfbGlua19jYXAo c3RydWN0IGRjX2xpbmsgKmxpbmspCiAJbWVtc2V0KCZlZHBfY29uZmlnX2NhcCwgJ1wwJywKIAkJ c2l6ZW9mKHVuaW9uIGVkcF9jb25maWd1cmF0aW9uX2NhcCkpOwogCi0Jc3RhdHVzID0gY29yZV9s aW5rX3JlYWRfZHBjZCgKLQkJCWxpbmssCi0JCQlEUF9EUENEX1JFViwKLQkJCWRwY2RfZGF0YSwK LQkJCXNpemVvZihkcGNkX2RhdGEpKTsKKwlmb3IgKGkgPSAwOyBpIDwgcmVhZF9kcGNkX3JldHJ5 X2NudDsgaSsrKSB7CisJCXN0YXR1cyA9IGNvcmVfbGlua19yZWFkX2RwY2QoCisJCQkJbGluaywK KwkJCQlEUF9EUENEX1JFViwKKwkJCQlkcGNkX2RhdGEsCisJCQkJc2l6ZW9mKGRwY2RfZGF0YSkp OworCQlpZiAoc3RhdHVzID09IERDX09LKQorCQkJYnJlYWs7CisJfQogCiAJaWYgKHN0YXR1cyAh PSBEQ19PSykgewogCQlkbV9lcnJvcigiJXM6IFJlYWQgZHBjZCBkYXRhIGZhaWxlZC5cbiIsIF9f ZnVuY19fKTsKLS0gCjIuMTQuMQoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX18KYW1kLWdmeCBtYWlsaW5nIGxpc3QKYW1kLWdmeEBsaXN0cy5mcmVlZGVza3Rv cC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9hbWQt Z2Z4Cg==