From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [RFC,v4,3/3] acpi: apei: Do not panic() on PCIe errors reported through GHES From: Alexandru Gagniuc Message-Id: <20180430213358.8319-3-mr.nuke.me@gmail.com> Date: Mon, 30 Apr 2018 16:33:52 -0500 To: bp@alien8.de Cc: alex_gagniuc@dellteam.com, austin_bolen@dell.com, shyam_iyer@dell.com, Alexandru Gagniuc , "Rafael J. Wysocki" , Len Brown , Tony Luck , Mauro Carvalho Chehab , Robert Moore , Erik Schmauss , Tyler Baicar , Will Deacon , James Morse , Shiju Jose , "Jonathan (Zhixiong) Zhang" , Dongjiu Geng , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-edac@vger.kernel.org, devel@acpica.org List-ID: VGhlIHBvbGljeSB3YXMgdG8gcGFuaWMoKSB3aGVuIEdIRVMgc2FpZCB0aGF0IGFuIGVycm9yIGlz ICJGYXRhbCIuClRoaXMgbG9naWMgaXMgd3JvbmcgZm9yIHNldmVyYWwgcmVhc29ucywgYXMgaXQg ZG9lc24ndCB0YWtlIGludG8KYWNjb3VudCB3aGF0IGNhdXNlZCB0aGUgZXJyb3IuCgpQQ0llIGZh dGFsIGVycm9ycyBpbmRpY2F0ZSB0aGF0IHRoZSBsaW5rIHRvIGEgZGV2aWNlIGlzIGVpdGhlcgp1 bnN0YWJsZSBvciB1bnVzYWJsZS4gVGhleSBkb24ndCBpbmRpY2F0ZSB0aGF0IHRoZSBtYWNoaW5l IGlzIG9uIGZpcmUsCmFuZCB0aGV5IGFyZSBub3Qgc2V2ZXJlIGVub3VnaCB0aGF0IHdlIG5lZWQg dG8gcGFuaWMoKS4gSW5zdGVhZCBvZgpyZWx5aW5nIG9uIGNyYWNrbW9ua2V5IGZpcm13YXJlLCBl dmFsdWF0ZSB0aGUgZXJyb3Igc2V2ZXJpdHkgYmFzZWQgb24Kd2hhdCBjYXVzZWQgdGhlIGVycm9y IChHSEVTIHN1YnNlY3Rpb25zKS4KClNpZ25lZC1vZmYtYnk6IEFsZXhhbmRydSBHYWduaXVjIDxt ci5udWtlLm1lQGdtYWlsLmNvbT4KLS0tCiBkcml2ZXJzL2FjcGkvYXBlaS9naGVzLmMgfCA0NSAr KysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKystLS0KIDEgZmlsZSBjaGFu Z2VkLCA0MiBpbnNlcnRpb25zKCspLCAzIGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2RyaXZl cnMvYWNwaS9hcGVpL2doZXMuYyBiL2RyaXZlcnMvYWNwaS9hcGVpL2doZXMuYwppbmRleCBjOWYx OTcxMzMzYzEuLjQ5MzE4ZmJhNDA5YyAxMDA2NDQKLS0tIGEvZHJpdmVycy9hY3BpL2FwZWkvZ2hl cy5jCisrKyBiL2RyaXZlcnMvYWNwaS9hcGVpL2doZXMuYwpAQCAtNDI1LDggKzQyNSw3IEBAIHN0 YXRpYyB2b2lkIGdoZXNfaGFuZGxlX21lbW9yeV9mYWlsdXJlKHN0cnVjdCBhY3BpX2hlc3RfZ2Vu ZXJpY19kYXRhICpnZGF0YSwgaW50CiAgKiBHSEVTX1NFVl9SRUNPVkVSQUJMRSAtPiBBRVJfTk9O RkFUQUwKICAqIEdIRVNfU0VWX1JFQ09WRVJBQkxFICYmIENQRVJfU0VDX1JFU0VUIC0+IEFFUl9G QVRBTAogICogICAgIFRoZXNlIGJvdGggbmVlZCB0byBiZSByZXBvcnRlZCBhbmQgcmVjb3ZlcmVk IGZyb20gYnkgdGhlIEFFUiBkcml2ZXIuCi0gKiBHSEVTX1NFVl9QQU5JQyBkb2VzIG5vdCBtYWtl IGl0IHRvIHRoaXMgaGFuZGxpbmcgc2luY2UgdGhlIGtlcm5lbCBtdXN0Ci0gKiAgICAgcGFuaWMu CisgKiBHSEVTX1NFVl9QQU5JQyAtPiBBRVJfRkFUQUwKICAqLwogc3RhdGljIHZvaWQgZ2hlc19o YW5kbGVfYWVyKHN0cnVjdCBhY3BpX2hlc3RfZ2VuZXJpY19kYXRhICpnZGF0YSkKIHsKQEAgLTQ1 OSw2ICs0NTgsNDYgQEAgc3RhdGljIHZvaWQgZ2hlc19oYW5kbGVfYWVyKHN0cnVjdCBhY3BpX2hl c3RfZ2VuZXJpY19kYXRhICpnZGF0YSkKICNlbmRpZgogfQogCisvKiBQQ0llIGVycm9ycyBzaG91 bGQgbm90IGNhdXNlIGEgcGFuaWMuICovCitzdGF0aWMgaW50IGdoZXNfc2VjX3BjaWVfc2V2ZXJp dHkoc3RydWN0IGFjcGlfaGVzdF9nZW5lcmljX2RhdGEgKmdkYXRhKQoreworCXN0cnVjdCBjcGVy X3NlY19wY2llICpwY2llX2VyciA9IGFjcGlfaGVzdF9nZXRfcGF5bG9hZChnZGF0YSk7CisKKwlp ZiAocGNpZV9lcnItPnZhbGlkYXRpb25fYml0cyAmIENQRVJfUENJRV9WQUxJRF9ERVZJQ0VfSUQg JiYKKwkgICAgcGNpZV9lcnItPnZhbGlkYXRpb25fYml0cyAmIENQRVJfUENJRV9WQUxJRF9BRVJf SU5GTyAmJgorCSAgICBJU19FTkFCTEVEKENPTkZJR19BQ1BJX0FQRUlfUENJRUFFUikpCisJCXJl dHVybiBDUEVSX1NFVl9SRUNPVkVSQUJMRTsKKworCXJldHVybiBnaGVzX2NwZXJfc2V2ZXJpdHko Z2RhdGEtPmVycm9yX3NldmVyaXR5KTsKK30KKy8qCisgKiBUaGUgc2V2ZXJpdHkgZmllbGQgaW4g dGhlIHN0YXR1cyBibG9jayBpcyBvZnRlbnRpbWVzIG1vcmUgc2V2ZXJlIHRoYW4gaXQKKyAqIG5l ZWRzIHRvIGJlLiBUaGlzIG1ha2VzIGl0IGFuIHVucmVsaWFibGUgbWV0cmljIGZvciB0aGUgc2V2 ZXJpdHkuIEEgbW9yZQorICogcmVsaWFibGUgd2F5IGlzIHRvIGxvb2sgYXQgZWFjaCBzdWJzZWN0 aW9uIGFuZCBjb3JyZWxhdGUgaXQgd2l0aCBob3cgd2VsbAorICogdGhlIGVycm9yIGNhbiBiZSBo YW5kbGVkLgorICogICAtIFNFQ19QQ0lFOiBBbGwgUENJZSBlcnJvcnMgY2FuIGJlIGhhbmRsZWQg YnkgQUVSLgorICovCitzdGF0aWMgaW50IGdoZXNfc2V2ZXJpdHkoc3RydWN0IGdoZXMgKmdoZXMp Cit7CisJaW50IHdvcnN0X3Nldiwgc2VjX3NldjsKKwlzdHJ1Y3QgYWNwaV9oZXN0X2dlbmVyaWNf ZGF0YSAqZ2RhdGE7CisJY29uc3QgZ3VpZF90ICpzZWN0aW9uX3R5cGU7CisJY29uc3Qgc3RydWN0 IGFjcGlfaGVzdF9nZW5lcmljX3N0YXR1cyAqZXN0YXR1cyA9IGdoZXMtPmVzdGF0dXM7CisKKwl3 b3JzdF9zZXYgPSBHSEVTX1NFVl9OTzsKKwlhcGVpX2VzdGF0dXNfZm9yX2VhY2hfc2VjdGlvbihl c3RhdHVzLCBnZGF0YSkgeworCQlzZWN0aW9uX3R5cGUgPSAoZ3VpZF90ICopZ2RhdGEtPnNlY3Rp b25fdHlwZTsKKwkJc2VjX3NldiA9IGdoZXNfY3Blcl9zZXZlcml0eShnZGF0YS0+ZXJyb3Jfc2V2 ZXJpdHkpOworCisJCWlmIChndWlkX2VxdWFsKHNlY3Rpb25fdHlwZSwgJkNQRVJfU0VDX1BDSUUp KQorCQkJc2VjX3NldiA9IGdoZXNfc2VjX3BjaWVfc2V2ZXJpdHkoZ2RhdGEpOworCisJCXdvcnN0 X3NldiA9IG1heCh3b3JzdF9zZXYsIHNlY19zZXYpOworCX0KKworCXJldHVybiB3b3JzdF9zZXY7 Cit9CisKIHN0YXRpYyB2b2lkIGdoZXNfZG9fcHJvYyhzdHJ1Y3QgZ2hlcyAqZ2hlcywKIAkJCSBj b25zdCBzdHJ1Y3QgYWNwaV9oZXN0X2dlbmVyaWNfc3RhdHVzICplc3RhdHVzKQogewpAQCAtOTQ0 LDcgKzk4Myw3IEBAIHN0YXRpYyBpbnQgZ2hlc19ub3RpZnlfbm1pKHVuc2lnbmVkIGludCBjbWQs IHN0cnVjdCBwdF9yZWdzICpyZWdzKQogCQkJcmV0ID0gTk1JX0hBTkRMRUQ7CiAJCX0KIAotCQlz ZXYgPSBnaGVzX2NwZXJfc2V2ZXJpdHkoZ2hlcy0+ZXN0YXR1cy0+ZXJyb3Jfc2V2ZXJpdHkpOwor CQlzZXYgPSBnaGVzX3NldmVyaXR5KGdoZXMpOwogCQlpZiAoc2V2ID49IEdIRVNfU0VWX1BBTklD KSB7CiAJCQlvb3BzX2JlZ2luKCk7CiAJCQlnaGVzX3ByaW50X3F1ZXVlZF9lc3RhdHVzKCk7Cg==