5bd0b85ba8
As there are no users left, we can remove cpu_relax_lowlatency() implementations from every architecture. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Noam Camus <noamc@ezchip.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: linuxppc-dev@lists.ozlabs.org Cc: virtualization@lists.linux-foundation.org Cc: xen-devel@lists.xenproject.org Cc: <linux-arch@vger.kernel.org> Link: http://lkml.kernel.org/r/1477386195-32736-6-git-send-email-borntraeger@de.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
36 lines
807 B
C
36 lines
807 B
C
#ifndef __UM_PROCESSOR_H
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#define __UM_PROCESSOR_H
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/* include faultinfo structure */
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#include <sysdep/faultinfo.h>
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#ifdef CONFIG_X86_32
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# include "processor_32.h"
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#else
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# include "processor_64.h"
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#endif
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#define KSTK_EIP(tsk) KSTK_REG(tsk, HOST_IP)
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#define KSTK_ESP(tsk) KSTK_REG(tsk, HOST_SP)
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#define KSTK_EBP(tsk) KSTK_REG(tsk, HOST_BP)
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#define ARCH_IS_STACKGROW(address) \
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(address + 65536 + 32 * sizeof(unsigned long) >= UPT_SP(¤t->thread.regs.regs))
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#include <asm/user.h>
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/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
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static inline void rep_nop(void)
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{
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__asm__ __volatile__("rep;nop": : :"memory");
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}
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#define cpu_relax() rep_nop()
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#define cpu_relax_yield() cpu_relax()
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#define task_pt_regs(t) (&(t)->thread.regs)
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#include <asm/processor-generic.h>
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#endif
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