patch-2.4.20 linux-2.4.20/include/asm-ppc64/dump.h

• Lines: 113
• Date: Thu Nov 28 15:53:15 2002
• Orig file: linux-2.4.19/include/asm-ppc64/dump.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.19/include/asm-ppc64/dump.h linux-2.4.20/include/asm-ppc64/dump.h
@@ -0,0 +1,112 @@
+/*
+ * Kernel header file for Linux crash dumps.
+ *
+ * Created by: Todd Inglett <tinglett@vnet.ibm.com>
+ *
+ * Copyright 2002 International Business Machines
+ *
+ * This code is released under version 2 of the GNU GPL.
+ */
+
+/* This header file holds the architecture specific crash dump header */
+#ifndef _ASM_DUMP_H
+#define _ASM_DUMP_H
+
+/* necessary header files */
+#include <asm/ptrace.h>                          /* for pt_regs             */
+#include <linux/threads.h>
+
+/* definitions */
+#define DUMP_ASM_MAGIC_NUMBER     0xdeaddeadULL  /* magic number            */
+#define DUMP_ASM_VERSION_NUMBER   0x1            /* version number          */
+
+
+/*
+ * Structure: dump_header_asm_t
+ *  Function: This is the header for architecture-specific stuff.  It
+ *            follows right after the dump header.
+ */
+typedef struct _dump_header_asm_s {
+
+        /* the dump magic number -- unique to verify dump is valid */
+        uint64_t             dha_magic_number;
+
+        /* the version number of this dump */
+        uint32_t             dha_version;
+
+        /* the size of this header (in case we can't read it) */
+        uint32_t             dha_header_size;
+
+	/* the dump registers */
+	struct pt_regs       dha_regs;
+
+	/* smp specific */
+	uint32_t	     dha_smp_num_cpus;
+	int		     dha_dumping_cpu;	
+	struct pt_regs	     dha_smp_regs[NR_CPUS];
+	void *		     dha_smp_current_task[NR_CPUS];
+	void *		     dha_stack[NR_CPUS];
+} dump_header_asm_t;
+
+#ifdef __KERNEL__
+static inline void get_current_regs(struct pt_regs *regs)
+{
+	__asm__ __volatile__ (
+		"std	0,0(%0)\n"
+		"std	1,8(%0)\n"
+		"std	2,16(%0)\n"
+		"std	3,24(%0)\n"
+		"std	4,32(%0)\n"
+		"std	5,40(%0)\n"
+		"std	6,48(%0)\n"
+		"std	7,56(%0)\n"
+		"std	8,64(%0)\n"
+		"std	9,72(%0)\n"
+		"std	10,80(%0)\n"
+		"std	11,88(%0)\n"
+		"std	12,96(%0)\n"
+		"std	13,104(%0)\n"
+		"std	14,112(%0)\n"
+		"std	15,120(%0)\n"
+		"std	16,128(%0)\n"
+		"std	17,136(%0)\n"
+		"std	18,144(%0)\n"
+		"std	19,152(%0)\n"
+		"std	20,160(%0)\n"
+		"std	21,168(%0)\n"
+		"std	22,176(%0)\n"
+		"std	23,184(%0)\n"
+		"std	24,192(%0)\n"
+		"std	25,200(%0)\n"
+		"std	26,208(%0)\n"
+		"std	27,216(%0)\n"
+		"std	28,224(%0)\n"
+		"std	29,232(%0)\n"
+		"std	30,240(%0)\n"
+		"std	31,248(%0)\n"
+		"mfmsr	0\n"
+		"std	0, 264(%0)\n"
+		"mfctr	0\n"
+		"std	0, 280(%0)\n"
+		"mflr	0\n"
+		"std	0, 288(%0)\n"
+		"bl	1f\n"
+	"1:	 mflr	5\n"
+		"std	5, 256(%0)\n"
+		"mtlr	0\n"
+		"mfxer	0\n"
+		"std	0, 296(%0)\n"
+			      : : "b" (&regs));
+}
+
+extern volatile int dump_in_progress;
+extern dump_header_asm_t dump_header_asm;
+
+#ifdef CONFIG_SMP
+extern void dump_send_ipi(int (*dump_ipi_callback)(struct pt_regs *));
+#else
+#define dump_send_ipi()
+#endif
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_DUMP_H */