Commit 9c636e30 authored by David S. Miller's avatar David S. Miller
Browse files

sparc64: Kill smp_report_regs(). 



All the call sites are #if 0'd out and we have a much more
useful global cpu dumping facility these days.  smp_report_regs()
is way too verbose to be usable.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a0148213

arch/sparc64/kernel/process.c

+0 −9
Original line number Diff line number Diff line
@@ -254,15 +254,6 @@ void __show_regs(struct pt_regs * regs) 
void show_regs(struct pt_regs *regs)

{

	__show_regs(regs);

#if 0

#ifdef CONFIG_SMP

	{

		extern void smp_report_regs(void);



		smp_report_regs();

	}

#endif

#endif

}



struct global_reg_snapshot global_reg_snapshot[NR_CPUS];

arch/sparc64/kernel/smp.c

+0 −6
Original line number Diff line number Diff line
@@ -843,7 +843,6 @@ void smp_tsb_sync(struct mm_struct *mm) 
extern unsigned long xcall_flush_tlb_mm;

extern unsigned long xcall_flush_tlb_pending;

extern unsigned long xcall_flush_tlb_kernel_range;

extern unsigned long xcall_report_regs;

#ifdef CONFIG_MAGIC_SYSRQ

extern unsigned long xcall_fetch_glob_regs;

#endif
@@ -1022,11 +1021,6 @@ void kgdb_roundup_cpus(unsigned long flags) 
}

#endif



void smp_report_regs(void)

{

	smp_cross_call(&xcall_report_regs, 0, 0, 0);

}



#ifdef CONFIG_MAGIC_SYSRQ

void smp_fetch_global_regs(void)

{

arch/sparc64/kernel/traps.c

+0 −6
Original line number Diff line number Diff line
@@ -2177,7 +2177,6 @@ static inline struct reg_window *kernel_stack_up(struct reg_window *rw) 
void die_if_kernel(char *str, struct pt_regs *regs)

{

	static int die_counter;

	extern void smp_report_regs(void);

	int count = 0;

	

	/* Amuse the user. */
@@ -2215,11 +2214,6 @@ void die_if_kernel(char *str, struct pt_regs *regs) 
		}

		user_instruction_dump ((unsigned int __user *) regs->tpc);

	}

#if 0

#ifdef CONFIG_SMP

	smp_report_regs();

#endif

#endif                                                	

	if (regs->tstate & TSTATE_PRIV)

		do_exit(SIGKILL);

	do_exit(SIGSEGV);

arch/sparc64/mm/ultra.S

+0 −35
Original line number Diff line number Diff line
@@ -480,41 +480,6 @@ xcall_sync_tick: 
	b		rtrap_xcall

	 ldx		[%sp + PTREGS_OFF + PT_V9_TSTATE], %l1



	/* NOTE: This is SPECIAL!!  We do etrap/rtrap however

	 *       we choose to deal with the "BH's run with

	 *       %pil==15" problem (described in asm/pil.h)

	 *       by just invoking rtrap directly past where

	 *       BH's are checked for.

	 *

	 *       We do it like this because we do not want %pil==15

	 *       lockups to prevent regs being reported.

	 */

	.globl		xcall_report_regs

xcall_report_regs:



661:	rdpr		%pstate, %g2

	wrpr		%g2, PSTATE_IG | PSTATE_AG, %pstate

	.section	.sun4v_2insn_patch, "ax"

	.word		661b

	nop

	nop

	.previous



	rdpr		%pil, %g2

	wrpr		%g0, 15, %pil

	sethi		%hi(109f), %g7

	b,pt		%xcc, etrap_irq

109:	 or		%g7, %lo(109b), %g7

#ifdef CONFIG_TRACE_IRQFLAGS

	call		trace_hardirqs_off

	 nop

#endif

	call		__show_regs

	 add		%sp, PTREGS_OFF, %o0

	/* Has to be a non-v9 branch due to the large distance. */

	b		rtrap_xcall

	 ldx		[%sp + PTREGS_OFF + PT_V9_TSTATE], %l1



#ifdef CONFIG_MAGIC_SYSRQ

	.globl		xcall_fetch_glob_regs

xcall_fetch_glob_regs: