Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 81 insertions, 0 deletions

diff --git a/arch/ia64/sn/include/ioerror.h b/arch/ia64/sn/include/ioerror.h
new file mode 100644
index 00000000000..e68f2b0789a
--- /dev/null
+++ b/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 */