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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/xtensa/include/asm/irqflags.h | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/xtensa/include/asm/irqflags.h')
-rw-r--r-- | arch/xtensa/include/asm/irqflags.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/irqflags.h b/arch/xtensa/include/asm/irqflags.h new file mode 100644 index 00000000..dae9a8bd --- /dev/null +++ b/arch/xtensa/include/asm/irqflags.h @@ -0,0 +1,58 @@ +/* + * Xtensa IRQ flags handling functions + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2001 - 2005 Tensilica Inc. + */ + +#ifndef _XTENSA_IRQFLAGS_H +#define _XTENSA_IRQFLAGS_H + +#include <linux/types.h> + +static inline unsigned long arch_local_save_flags(void) +{ + unsigned long flags; + asm volatile("rsr %0,"__stringify(PS) : "=a" (flags)); + return flags; +} + +static inline unsigned long arch_local_irq_save(void) +{ + unsigned long flags; + asm volatile("rsil %0, "__stringify(LOCKLEVEL) + : "=a" (flags) :: "memory"); + return flags; +} + +static inline void arch_local_irq_disable(void) +{ + arch_local_irq_save(); +} + +static inline void arch_local_irq_enable(void) +{ + unsigned long flags; + asm volatile("rsil %0, 0" : "=a" (flags) :: "memory"); +} + +static inline void arch_local_irq_restore(unsigned long flags) +{ + asm volatile("wsr %0, "__stringify(PS)" ; rsync" + :: "a" (flags) : "memory"); +} + +static inline bool arch_irqs_disabled_flags(unsigned long flags) +{ + return (flags & 0xf) != 0; +} + +static inline bool arch_irqs_disabled(void) +{ + return arch_irqs_disabled_flags(arch_local_save_flags()); +} + +#endif /* _XTENSA_IRQFLAGS_H */ |