X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=include%2Fasm-powerpc%2Fkexec.h;h=640a6459f2f4604017c3fb14a452ecdbf0ba62ac;hb=8169b5d2384a0acd9ea3bb86bf5988cd7d62d03a;hp=062ab9ba68eb31d0f6fcc711b4259202a467e6f2;hpb=87199134b4a85de56a7508c551ab3b3a3ee35035;p=powerpc.git

diff --git a/include/asm-powerpc/kexec.h b/include/asm-powerpc/kexec.h
index 062ab9ba68..640a6459f2 100644
--- a/include/asm-powerpc/kexec.h
+++ b/include/asm-powerpc/kexec.h
@@ -1,5 +1,6 @@
 #ifndef _ASM_POWERPC_KEXEC_H
 #define _ASM_POWERPC_KEXEC_H
+#ifdef __KERNEL__
 
 /*
  * Maximum page that is mapped directly into kernel memory.
@@ -30,20 +31,97 @@
 #define KEXEC_ARCH KEXEC_ARCH_PPC
 #endif
 
-#ifndef __ASSEMBLY__
+#ifdef CONFIG_KEXEC
 
-#define MAX_NOTE_BYTES 1024
-typedef u32 note_buf_t[MAX_NOTE_BYTES / sizeof(u32)];
+#ifdef __powerpc64__
+/*
+ * This function is responsible for capturing register states if coming
+ * via panic or invoking dump using sysrq-trigger.
+ */
+static inline void crash_setup_regs(struct pt_regs *newregs,
+					struct pt_regs *oldregs)
+{
+	if (oldregs)
+		memcpy(newregs, oldregs, sizeof(*newregs));
+	else {
+		/* FIXME Merge this with xmon_save_regs ?? */
+		unsigned long tmp1, tmp2;
+		__asm__ __volatile__ (
+			"std    0,0(%2)\n"
+			"std    1,8(%2)\n"
+			"std    2,16(%2)\n"
+			"std    3,24(%2)\n"
+			"std    4,32(%2)\n"
+			"std    5,40(%2)\n"
+			"std    6,48(%2)\n"
+			"std    7,56(%2)\n"
+			"std    8,64(%2)\n"
+			"std    9,72(%2)\n"
+			"std    10,80(%2)\n"
+			"std    11,88(%2)\n"
+			"std    12,96(%2)\n"
+			"std    13,104(%2)\n"
+			"std    14,112(%2)\n"
+			"std    15,120(%2)\n"
+			"std    16,128(%2)\n"
+			"std    17,136(%2)\n"
+			"std    18,144(%2)\n"
+			"std    19,152(%2)\n"
+			"std    20,160(%2)\n"
+			"std    21,168(%2)\n"
+			"std    22,176(%2)\n"
+			"std    23,184(%2)\n"
+			"std    24,192(%2)\n"
+			"std    25,200(%2)\n"
+			"std    26,208(%2)\n"
+			"std    27,216(%2)\n"
+			"std    28,224(%2)\n"
+			"std    29,232(%2)\n"
+			"std    30,240(%2)\n"
+			"std    31,248(%2)\n"
+			"mfmsr  %0\n"
+			"std    %0, 264(%2)\n"
+			"mfctr  %0\n"
+			"std    %0, 280(%2)\n"
+			"mflr   %0\n"
+			"std    %0, 288(%2)\n"
+			"bl     1f\n"
+		"1:     mflr   %1\n"
+			"std    %1, 256(%2)\n"
+			"mtlr   %0\n"
+			"mfxer  %0\n"
+			"std    %0, 296(%2)\n"
+			: "=&r" (tmp1), "=&r" (tmp2)
+			: "b" (newregs));
+	}
+}
+#else
+/*
+ * Provide a dummy definition to avoid build failures. Will remain
+ * empty till crash dump support is enabled.
+ */
+static inline void crash_setup_regs(struct pt_regs *newregs,
+					struct pt_regs *oldregs) { }
+#endif /* !__powerpc64 __ */
 
-extern note_buf_t crash_notes[];
+#ifndef __ASSEMBLY__
+#define MAX_NOTE_BYTES 1024
 
 #ifdef __powerpc64__
 extern void kexec_smp_wait(void);	/* get and clear naca physid, wait for
 					  master to copy new code to 0 */
-#else
+extern void __init kexec_setup(void);
+extern int crashing_cpu;
+extern void crash_send_ipi(void (*crash_ipi_callback)(struct pt_regs *));
+#endif /* __powerpc64 __ */
+
 struct kimage;
-extern void machine_kexec_simple(struct kimage *image);
-#endif
+struct pt_regs;
+extern void default_machine_kexec(struct kimage *image);
+extern int default_machine_kexec_prepare(struct kimage *image);
+extern void default_machine_crash_shutdown(struct pt_regs *regs);
 
 #endif /* ! __ASSEMBLY__ */
+#endif /* CONFIG_KEXEC */
+#endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_KEXEC_H */