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authorAnton Vorontsov <avorontsov@ru.mvista.com>2008-12-17 10:09:35 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-01-08 16:25:17 +1100
commit02af87a74271977d09ece9b709909dcae3f9fab9 (patch)
tree3bbbe3db68e050d3d2e46529a91d9452c6d79490 /arch/powerpc
parent1edda9c795b99c3761715a73f62a78fce41a1f1d (diff)
powerpc/kdump: Use ppc_save_regs() in crash_setup_regs()
The patch replaces internal registers dump implementation with ppc_save_regs(). From now on PPC64 and PPC32 are using the same code for crash_setup_regs(). NOTE: The old regs dump implementation was capturing SP (r1) directly as is, so you could see crash_kexec() function on top of the back-trace. But ppc_save_regs() goes up one stack frame, so you'll not see it anymore, at the top-level you'll see who actually triggered the crash dump instead. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/kexec.h55
1 files changed, 0 insertions, 55 deletions
diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
index 6dbffc98170..7e06b43720d 100644
--- a/arch/powerpc/include/asm/kexec.h
+++ b/arch/powerpc/include/asm/kexec.h
@@ -48,63 +48,8 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
{
if (oldregs)
memcpy(newregs, oldregs, sizeof(*newregs));
-#ifdef __powerpc64__
- 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)
- : "memory");
- }
-#else
else
ppc_save_regs(newregs);
-#endif /* __powerpc64__ */
}
extern void kexec_smp_wait(void); /* get and clear naca physid, wait for