004417a6d4
The perf hardware pmu got initialized at various points in the boot, some before early_initcall() some after (notably arch_initcall). The problem is that the NMI lockup detector is ran from early_initcall() and expects the hardware pmu to be present. Sanitize this by moving all architecture hardware pmu implementations to initialize at early_initcall() and move the lockup detector to an explicit initcall right after that. Cc: paulus <paulus@samba.org> Cc: davem <davem@davemloft.net> Cc: Michael Cree <mcree@orcon.net.nz> Cc: Deng-Cheng Zhu <dengcheng.zhu@gmail.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1290707759.2145.119.camel@laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
30 lines
763 B
C
30 lines
763 B
C
#ifndef __ASM_SPARC_PERF_EVENT_H
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#define __ASM_SPARC_PERF_EVENT_H
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#ifdef CONFIG_PERF_EVENTS
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#include <asm/ptrace.h>
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#define perf_arch_fetch_caller_regs(regs, ip) \
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do { \
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unsigned long _pstate, _asi, _pil, _i7, _fp; \
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__asm__ __volatile__("rdpr %%pstate, %0\n\t" \
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"rd %%asi, %1\n\t" \
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"rdpr %%pil, %2\n\t" \
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"mov %%i7, %3\n\t" \
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"mov %%i6, %4\n\t" \
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: "=r" (_pstate), \
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"=r" (_asi), \
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"=r" (_pil), \
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"=r" (_i7), \
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"=r" (_fp)); \
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(regs)->tstate = (_pstate << 8) | \
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(_asi << 24) | (_pil << 20); \
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(regs)->tpc = (ip); \
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(regs)->tnpc = (regs)->tpc + 4; \
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(regs)->u_regs[UREG_I6] = _fp; \
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(regs)->u_regs[UREG_I7] = _i7; \
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} while (0)
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#endif
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#endif
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