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| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-12-15 14:52:16 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-12-15 14:52:16 -0300 |
| commit | 8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be (patch) | |
| tree | e9891aa6c295060d065adffd610c4f49ecf884f3 /arch/xtensa/include/asm/irqflags.h | |
| parent | a71852147516bc1cb5b0b3cbd13639bfd4022dc8 (diff) | |
Linux-libre 4.3.2-gnu
Diffstat (limited to 'arch/xtensa/include/asm/irqflags.h')
| -rw-r--r-- | arch/xtensa/include/asm/irqflags.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/arch/xtensa/include/asm/irqflags.h b/arch/xtensa/include/asm/irqflags.h index ea36674c6..8e090c709 100644 --- a/arch/xtensa/include/asm/irqflags.h +++ b/arch/xtensa/include/asm/irqflags.h @@ -6,6 +6,7 @@ * for more details. * * Copyright (C) 2001 - 2005 Tensilica Inc. + * Copyright (C) 2015 Cadence Design Systems Inc. */ #ifndef _XTENSA_IRQFLAGS_H @@ -23,8 +24,27 @@ static inline unsigned long arch_local_save_flags(void) static inline unsigned long arch_local_irq_save(void) { unsigned long flags; - asm volatile("rsil %0, "__stringify(LOCKLEVEL) +#if XTENSA_FAKE_NMI +#if defined(CONFIG_DEBUG_KERNEL) && (LOCKLEVEL | TOPLEVEL) >= XCHAL_DEBUGLEVEL + unsigned long tmp; + + asm volatile("rsr %0, ps\t\n" + "extui %1, %0, 0, 4\t\n" + "bgei %1, "__stringify(LOCKLEVEL)", 1f\t\n" + "rsil %0, "__stringify(LOCKLEVEL)"\n" + "1:" + : "=a" (flags), "=a" (tmp) :: "memory"); +#else + asm volatile("rsr %0, ps\t\n" + "or %0, %0, %1\t\n" + "xsr %0, ps\t\n" + "rsync" + : "=&a" (flags) : "a" (LOCKLEVEL) : "memory"); +#endif +#else + asm volatile("rsil %0, "__stringify(LOCKLEVEL) : "=a" (flags) :: "memory"); +#endif return flags; } |