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sparc64: Make %pil level 15 a pseudo-NMI.

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So that we can profile code even in a local_irq_disable() section,
only write 14 (instead of 15) into the %pil register to disable IRQs.

This allows PIL level 15 to serve as a pseudo NMI.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-11-23 21:55:29 -08:00
parent c6afec5e4d
commit b4f4372f96
12 changed files with 46 additions and 25 deletions
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10
arch/sparc64/kernel/cherrs.S
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@ -102,7 +102,7 @@ cheetah_plus_dcpe_trap_vector:
.type do_cheetah_plus_data_parity,#function
do_cheetah_plus_data_parity:
rdpr %pil, %g2
wrpr %g0, 15, %pil
wrpr %g0, PIL_NORMAL_MAX, %pil
ba,pt %xcc, etrap_irq
rd %pc, %g7
#ifdef CONFIG_TRACE_IRQFLAGS
@ -144,7 +144,7 @@ cheetah_plus_icpe_trap_vector:
.type do_cheetah_plus_insn_parity,#function
do_cheetah_plus_insn_parity:
rdpr %pil, %g2
wrpr %g0, 15, %pil
wrpr %g0, PIL_NORMAL_MAX, %pil
ba,pt %xcc, etrap_irq
rd %pc, %g7
#ifdef CONFIG_TRACE_IRQFLAGS
@ -492,7 +492,7 @@ cheetah_fast_ecc:
.type c_fast_ecc,#function
c_fast_ecc:
rdpr %pil, %g2
wrpr %g0, 15, %pil
wrpr %g0, PIL_NORMAL_MAX, %pil
ba,pt %xcc, etrap_irq
rd %pc, %g7
#ifdef CONFIG_TRACE_IRQFLAGS
@ -528,7 +528,7 @@ cheetah_cee:
.type c_cee,#function
c_cee:
rdpr %pil, %g2
wrpr %g0, 15, %pil
wrpr %g0, PIL_NORMAL_MAX, %pil
ba,pt %xcc, etrap_irq
rd %pc, %g7
#ifdef CONFIG_TRACE_IRQFLAGS
@ -564,7 +564,7 @@ cheetah_deferred_trap:
.type c_deferred,#function
c_deferred:
rdpr %pil, %g2
wrpr %g0, 15, %pil
wrpr %g0, PIL_NORMAL_MAX, %pil
ba,pt %xcc, etrap_irq
rd %pc, %g7
#ifdef CONFIG_TRACE_IRQFLAGS