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powerpc/64/interrupt: reduce expensive debug tests 

Move the assertions requiring restart table searches under
CONFIG_PPC_IRQ_SOFT_MASK_DEBUG.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210922145452.352571-6-npiggin@gmail.com
This commit is contained in:
Nicholas Piggin 2021-09-23 00:54:51 +10:00 committed by Michael Ellerman
parent 0faf20a1ad
commit ecb1057c0f
1 changed files with 10 additions and 4 deletions
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12
arch/powerpc/include/asm/interrupt.h
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@ -97,6 +97,11 @@ static inline void srr_regs_clobbered(void)
local_paca->hsrr_valid = 0;
}
#else
static inline unsigned long search_kernel_restart_table(unsigned long addr)
{
return 0;
}
static inline bool is_implicit_soft_masked(struct pt_regs *regs)
{
return false;
@ -193,13 +198,14 @@ static inline void interrupt_enter_prepare(struct pt_regs *regs, struct interrup
*/
if (TRAP(regs) != INTERRUPT_PROGRAM) {
CT_WARN_ON(ct_state() != CONTEXT_KERNEL);
if (IS_ENABLED(CONFIG_PPC_IRQ_SOFT_MASK_DEBUG))
BUG_ON(is_implicit_soft_masked(regs));
}
#ifdef CONFIG_PPC_BOOK3S
/* Move this under a debugging check */
if (arch_irq_disabled_regs(regs))
if (IS_ENABLED(CONFIG_PPC_IRQ_SOFT_MASK_DEBUG) &&
arch_irq_disabled_regs(regs))
BUG_ON(search_kernel_restart_table(regs->nip));
#endif
}
if (IS_ENABLED(CONFIG_PPC_IRQ_SOFT_MASK_DEBUG))
BUG_ON(!arch_irq_disabled_regs(regs) && !(regs->msr & MSR_EE));