From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zhenyu Wang Subject: [PATCH] drm/i915/gvt: Fix crash after request->hw_context change Date: Fri, 18 May 2018 18:13:05 +0800 Message-ID: <20180518101305.8840-1-zhenyuw@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: 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: intel-gvt-dev@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org V2hlbiB3ZSBkbyBzaGFkb3dpbmcsIHdvcmtsb2FkJ3MgcmVxdWVzdCBtaWdodCBub3QgYmUgYWxs b2NhdGVkIHlldCwKc28gd2Ugc3RpbGwgcmVxdWlyZSBzaGFkb3cgY29udGV4dCdzIG9iamVjdC4g QW5kIHdoZW4gY29tcGxldGUgd29ya2xvYWQsCmRlbGF5IHRvIHplcm8gd29ya2xvYWQncyByZXF1 ZXN0IHBvaW50ZXIgYWZ0ZXIgdXNlZCBmb3IgdXBkYXRlIGd1ZXN0IGNvbnRleHQuCgpGaXhlczog MWZjNDRkOWIxYWZiICgiZHJtL2k5MTU6IFN0b3JlIGEgcG9pbnRlciB0byBpbnRlbF9jb250ZXh0 IGluIGk5MTVfcmVxdWVzdCIpCkNjOiBDaHJpcyBXaWxzb24gPGNocmlzQGNocmlzLXdpbHNvbi5j by51az4KQ2M6IFR2cnRrbyBVcnN1bGluIDx0dnJ0a28udXJzdWxpbkBpbnRlbC5jb20+ClNpZ25l ZC1vZmYtYnk6IFpoZW55dSBXYW5nIDx6aGVueXV3QGxpbnV4LmludGVsLmNvbT4KLS0tCiBkcml2 ZXJzL2dwdS9kcm0vaTkxNS9ndnQvc2NoZWR1bGVyLmMgfCAxMiArKysrKystLS0tLS0KIDEgZmls ZSBjaGFuZ2VkLCA2IGluc2VydGlvbnMoKyksIDYgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEv ZHJpdmVycy9ncHUvZHJtL2k5MTUvZ3Z0L3NjaGVkdWxlci5jIGIvZHJpdmVycy9ncHUvZHJtL2k5 MTUvZ3Z0L3NjaGVkdWxlci5jCmluZGV4IDJlZmI3MjNiOTBjYi4uMDBmNzlmYzk0MGRhIDEwMDY0 NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9ndnQvc2NoZWR1bGVyLmMKKysrIGIvZHJpdmVy cy9ncHUvZHJtL2k5MTUvZ3Z0L3NjaGVkdWxlci5jCkBAIC0xMjUsOCArMTI1LDkgQEAgc3RhdGlj IGludCBwb3B1bGF0ZV9zaGFkb3dfY29udGV4dChzdHJ1Y3QgaW50ZWxfdmdwdV93b3JrbG9hZCAq d29ya2xvYWQpCiAJc3RydWN0IGludGVsX3ZncHUgKnZncHUgPSB3b3JrbG9hZC0+dmdwdTsKIAlz dHJ1Y3QgaW50ZWxfZ3Z0ICpndnQgPSB2Z3B1LT5ndnQ7CiAJaW50IHJpbmdfaWQgPSB3b3JrbG9h ZC0+cmluZ19pZDsKKwlzdHJ1Y3QgaTkxNV9nZW1fY29udGV4dCAqc2hhZG93X2N0eCA9IHZncHUt PnN1Ym1pc3Npb24uc2hhZG93X2N0eDsKIAlzdHJ1Y3QgZHJtX2k5MTVfZ2VtX29iamVjdCAqY3R4 X29iaiA9Ci0JCXdvcmtsb2FkLT5yZXEtPmh3X2NvbnRleHQtPnN0YXRlLT5vYmo7CisJCXNoYWRv d19jdHgtPl9fZW5naW5lW3JpbmdfaWRdLnN0YXRlLT5vYmo7CiAJc3RydWN0IGV4ZWNsaXN0X3Jp bmdfY29udGV4dCAqc2hhZG93X3JpbmdfY29udGV4dDsKIAlzdHJ1Y3QgcGFnZSAqcGFnZTsKIAl2 b2lkICpkc3Q7CkBAIC01OTUsOCArNTk2LDYgQEAgc3RhdGljIGludCBwcmVwYXJlX3dvcmtsb2Fk KHN0cnVjdCBpbnRlbF92Z3B1X3dvcmtsb2FkICp3b3JrbG9hZCkKIAkJcmV0dXJuIHJldDsKIAl9 CiAKLQl1cGRhdGVfc2hhZG93X3BkcHMod29ya2xvYWQpOwotCiAJcmV0ID0gaW50ZWxfdmdwdV9z eW5jX29vc19wYWdlcyh3b3JrbG9hZC0+dmdwdSk7CiAJaWYgKHJldCkgewogCQlndnRfdmdwdV9l cnIoImZhaWwgdG8gdmdwdSBzeW5jIG9vcyBwYWdlc1xuIik7CkBAIC02MTUsNiArNjE0LDggQEAg c3RhdGljIGludCBwcmVwYXJlX3dvcmtsb2FkKHN0cnVjdCBpbnRlbF92Z3B1X3dvcmtsb2FkICp3 b3JrbG9hZCkKIAkJZ290byBlcnJfdW5waW5fbW07CiAJfQogCisJdXBkYXRlX3NoYWRvd19wZHBz KHdvcmtsb2FkKTsKKwogCXJldCA9IHByZXBhcmVfc2hhZG93X2JhdGNoX2J1ZmZlcih3b3JrbG9h ZCk7CiAJaWYgKHJldCkgewogCQlndnRfdmdwdV9lcnIoImZhaWwgdG8gcHJlcGFyZV9zaGFkb3df YmF0Y2hfYnVmZmVyXG4iKTsKQEAgLTgyNSw3ICs4MjYsNyBAQCBzdGF0aWMgdm9pZCBjb21wbGV0 ZV9jdXJyZW50X3dvcmtsb2FkKHN0cnVjdCBpbnRlbF9ndnQgKmd2dCwgaW50IHJpbmdfaWQpCiAJ CXNjaGVkdWxlci0+Y3VycmVudF93b3JrbG9hZFtyaW5nX2lkXTsKIAlzdHJ1Y3QgaW50ZWxfdmdw dSAqdmdwdSA9IHdvcmtsb2FkLT52Z3B1OwogCXN0cnVjdCBpbnRlbF92Z3B1X3N1Ym1pc3Npb24g KnMgPSAmdmdwdS0+c3VibWlzc2lvbjsKLQlzdHJ1Y3QgaTkxNV9yZXF1ZXN0ICpycTsKKwlzdHJ1 Y3QgaTkxNV9yZXF1ZXN0ICpycSA9IHdvcmtsb2FkLT5yZXE7CiAJaW50IGV2ZW50OwogCiAJbXV0 ZXhfbG9jaygmdmdwdS0+dmdwdV9sb2NrKTsKQEAgLTgzNSw3ICs4MzYsNiBAQCBzdGF0aWMgdm9p ZCBjb21wbGV0ZV9jdXJyZW50X3dvcmtsb2FkKHN0cnVjdCBpbnRlbF9ndnQgKmd2dCwgaW50IHJp bmdfaWQpCiAJICogc3dpdGNoIHRvIG1ha2Ugc3VyZSByZXF1ZXN0IGlzIGNvbXBsZXRlZC4KIAkg KiBGb3IgdGhlIHdvcmtsb2FkIHcvbyByZXF1ZXN0LCBkaXJlY3RseSBjb21wbGV0ZSB0aGUgd29y a2xvYWQuCiAJICovCi0JcnEgPSBmZXRjaF9hbmRfemVybygmd29ya2xvYWQtPnJlcSk7CiAJaWYg KHJxKSB7CiAJCXdhaXRfZXZlbnQod29ya2xvYWQtPnNoYWRvd19jdHhfc3RhdHVzX3dxLAogCQkJ ICAgIWF0b21pY19yZWFkKCZ3b3JrbG9hZC0+c2hhZG93X2N0eF9hY3RpdmUpKTsKQEAgLTg2Niw3 ICs4NjYsNyBAQCBzdGF0aWMgdm9pZCBjb21wbGV0ZV9jdXJyZW50X3dvcmtsb2FkKHN0cnVjdCBp bnRlbF9ndnQgKmd2dCwgaW50IHJpbmdfaWQpCiAJCWludGVsX2NvbnRleHRfdW5waW4ocnEtPmh3 X2NvbnRleHQpOwogCQltdXRleF91bmxvY2soJnJxLT5pOTE1LT5kcm0uc3RydWN0X211dGV4KTsK IAotCQlpOTE1X3JlcXVlc3RfcHV0KHJxKTsKKwkJaTkxNV9yZXF1ZXN0X3B1dChmZXRjaF9hbmRf emVybygmd29ya2xvYWQtPnJlcSkpOwogCX0KIAogCWd2dF9kYmdfc2NoZWQoInJpbmcgaWQgJWQg Y29tcGxldGUgd29ya2xvYWQgJXAgc3RhdHVzICVkXG4iLAotLSAKMi4xNy4wCgpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBs aXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVz a3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK