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authorLinus Torvalds <torvalds@g5.osdl.org>2006-01-15 10:05:10 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-15 10:05:10 -0800
commitfc03da1ca1954f103ed57daf90611cefa57b07e0 (patch)
tree2b9b44b1a39f7743c1c3d7bc89654792686d7dbc /include
parentcaf5b04c82f05c65843b2d7189845d6c3df5a41e (diff)
parente05b3b4adbaeea508bd1c195f1f2e22c8251176b (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge
Diffstat (limited to 'include')
-rw-r--r--include/asm-powerpc/kexec.h85
-rw-r--r--include/asm-ppc/prom.h8
2 files changed, 81 insertions, 12 deletions
diff --git a/include/asm-powerpc/kexec.h b/include/asm-powerpc/kexec.h
index fffdf690b84..640a6459f2f 100644
--- a/include/asm-powerpc/kexec.h
+++ b/include/asm-powerpc/kexec.h
@@ -31,12 +31,80 @@
#define KEXEC_ARCH KEXEC_ARCH_PPC
#endif
-#define HAVE_ARCH_COPY_OLDMEM_PAGE
-
-#ifndef __ASSEMBLY__
-
#ifdef CONFIG_KEXEC
+#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 __ */
+
+#ifndef __ASSEMBLY__
#define MAX_NOTE_BYTES 1024
#ifdef __powerpc64__
@@ -53,14 +121,7 @@ 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 /* !CONFIG_KEXEC */
-
-/*
- * 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 /* ! __ASSEMBLY__ */
+#endif /* CONFIG_KEXEC */
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_KEXEC_H */
diff --git a/include/asm-ppc/prom.h b/include/asm-ppc/prom.h
index eb317a0806e..6d431d6fb02 100644
--- a/include/asm-ppc/prom.h
+++ b/include/asm-ppc/prom.h
@@ -167,6 +167,14 @@ extern int of_address_to_resource(struct device_node *dev, int index,
extern int of_pci_address_to_resource(struct device_node *dev, int bar,
struct resource *r);
+#ifndef CONFIG_PPC_OF
+/*
+ * Fallback definitions for builds where we don't have prom.c included.
+ */
+#define machine_is_compatible(x) 0
+#define of_find_compatible_node(f, t, c) NULL
+#define get_property(p, n, l) NULL
+#endif
#endif /* _PPC_PROM_H */
#endif /* __KERNEL__ */