diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/ia64/sn/include/ioerror.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/ia64/sn/include/ioerror.h')
-rw-r--r-- | kernel/arch/ia64/sn/include/ioerror.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/kernel/arch/ia64/sn/include/ioerror.h b/kernel/arch/ia64/sn/include/ioerror.h new file mode 100644 index 000000000..e68f2b078 --- /dev/null +++ b/kernel/arch/ia64/sn/include/ioerror.h @@ -0,0 +1,81 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1992 - 1997, 2000-2003 Silicon Graphics, Inc. All rights reserved. + */ +#ifndef _ASM_IA64_SN_IOERROR_H +#define _ASM_IA64_SN_IOERROR_H + +/* + * IO error structure. + * + * This structure would expand to hold the information retrieved from + * all IO related error registers. + * + * This structure is defined to hold all system specific + * information related to a single error. + * + * This serves a couple of purpose. + * - Error handling often involves translating one form of address to other + * form. So, instead of having different data structures at each level, + * we have a single structure, and the appropriate fields get filled in + * at each layer. + * - This provides a way to dump all error related information in any layer + * of erorr handling (debugging aid). + * + * A second possibility is to allow each layer to define its own error + * data structure, and fill in the proper fields. This has the advantage + * of isolating the layers. + * A big concern is the potential stack usage (and overflow), if each layer + * defines these structures on stack (assuming we don't want to do kmalloc. + * + * Any layer wishing to pass extra information to a layer next to it in + * error handling hierarchy, can do so as a separate parameter. + */ + +typedef struct io_error_s { + /* Bit fields indicating which structure fields are valid */ + union { + struct { + unsigned ievb_errortype:1; + unsigned ievb_widgetnum:1; + unsigned ievb_widgetdev:1; + unsigned ievb_srccpu:1; + unsigned ievb_srcnode:1; + unsigned ievb_errnode:1; + unsigned ievb_sysioaddr:1; + unsigned ievb_xtalkaddr:1; + unsigned ievb_busspace:1; + unsigned ievb_busaddr:1; + unsigned ievb_vaddr:1; + unsigned ievb_memaddr:1; + unsigned ievb_epc:1; + unsigned ievb_ef:1; + unsigned ievb_tnum:1; + } iev_b; + unsigned iev_a; + } ie_v; + + short ie_errortype; /* error type: extra info about error */ + short ie_widgetnum; /* Widget number that's in error */ + short ie_widgetdev; /* Device within widget in error */ + cpuid_t ie_srccpu; /* CPU on srcnode generating error */ + cnodeid_t ie_srcnode; /* Node which caused the error */ + cnodeid_t ie_errnode; /* Node where error was noticed */ + iopaddr_t ie_sysioaddr; /* Sys specific IO address */ + iopaddr_t ie_xtalkaddr; /* Xtalk (48bit) addr of Error */ + iopaddr_t ie_busspace; /* Bus specific address space */ + iopaddr_t ie_busaddr; /* Bus specific address */ + caddr_t ie_vaddr; /* Virtual address of error */ + iopaddr_t ie_memaddr; /* Physical memory address */ + caddr_t ie_epc; /* pc when error reported */ + caddr_t ie_ef; /* eframe when error reported */ + short ie_tnum; /* Xtalk TNUM field */ +} ioerror_t; + +#define IOERROR_INIT(e) do { (e)->ie_v.iev_a = 0; } while (0) +#define IOERROR_SETVALUE(e,f,v) do { (e)->ie_ ## f = (v); (e)->ie_v.iev_b.ievb_ ## f = 1; } while (0) + +#endif /* _ASM_IA64_SN_IOERROR_H */ |