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Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-irqflags

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* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-irqflags:
  Fix IRQ flag handling naming
  MIPS: Add missing #inclusions of <linux/irq.h>
  smc91x: Add missing #inclusion of <linux/irq.h>
  Drop a couple of unnecessary asm/system.h inclusions
  SH: Add missing consts to sys_execve() declaration
  Blackfin: Rename IRQ flags handling functions
  Blackfin: Add missing dep to asm/irqflags.h
  Blackfin: Rename DES PC2() symbol to avoid collision
  Blackfin: Split the BF532 BFIN_*_FIO_FLAG() functions to their own header
  Blackfin: Split PLL code from mach-specific cdef headers
This commit is contained in:
Linus Torvalds
2010-10-21 14:37:27 -07:00
parent 70ada77920 df9ee29270
commit e36f561a2c
141 changed files with 2356 additions and 1868 deletions
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94
arch/ia64/include/asm/irqflags.h Normal file
View File

@@ -0,0 +1,94 @@
/*
* IRQ flags defines.
*
* Copyright (C) 1998-2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
* Copyright (C) 1999 Asit Mallick <asit.k.mallick@intel.com>
* Copyright (C) 1999 Don Dugger <don.dugger@intel.com>
*/
#ifndef _ASM_IA64_IRQFLAGS_H
#define _ASM_IA64_IRQFLAGS_H
#ifdef CONFIG_IA64_DEBUG_IRQ
extern unsigned long last_cli_ip;
static inline void arch_maybe_save_ip(unsigned long flags)
{
if (flags & IA64_PSR_I)
last_cli_ip = ia64_getreg(_IA64_REG_IP);
}
#else
#define arch_maybe_save_ip(flags) do {} while (0)
#endif
/*
* - clearing psr.i is implicitly serialized (visible by next insn)
* - setting psr.i requires data serialization
* - we need a stop-bit before reading PSR because we sometimes
* write a floating-point register right before reading the PSR
* and that writes to PSR.mfl
*/
static inline unsigned long arch_local_save_flags(void)
{
ia64_stop();
#ifdef CONFIG_PARAVIRT
return ia64_get_psr_i();
#else
return ia64_getreg(_IA64_REG_PSR);
#endif
}
static inline unsigned long arch_local_irq_save(void)
{
unsigned long flags = arch_local_save_flags();
ia64_stop();
ia64_rsm(IA64_PSR_I);
arch_maybe_save_ip(flags);
return flags;
}
static inline void arch_local_irq_disable(void)
{
#ifdef CONFIG_IA64_DEBUG_IRQ
arch_local_irq_save();
#else
ia64_stop();
ia64_rsm(IA64_PSR_I);
#endif
}
static inline void arch_local_irq_enable(void)
{
ia64_stop();
ia64_ssm(IA64_PSR_I);
ia64_srlz_d();
}
static inline void arch_local_irq_restore(unsigned long flags)
{
#ifdef CONFIG_IA64_DEBUG_IRQ
unsigned long old_psr = arch_local_save_flags();
#endif
ia64_intrin_local_irq_restore(flags & IA64_PSR_I);
arch_maybe_save_ip(old_psr & ~flags);
}
static inline bool arch_irqs_disabled_flags(unsigned long flags)
{
return (flags & IA64_PSR_I) == 0;
}
static inline bool arch_irqs_disabled(void)
{
return arch_irqs_disabled_flags(arch_local_save_flags());
}
static inline void arch_safe_halt(void)
{
ia64_pal_halt_light(); /* PAL_HALT_LIGHT */
}
#endif /* _ASM_IA64_IRQFLAGS_H */

76
arch/ia64/include/asm/system.h
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@@ -107,87 +107,11 @@ extern struct ia64_boot_param {
*/
#define set_mb(var, value) do { (var) = (value); mb(); } while (0)
#define safe_halt() ia64_pal_halt_light() /* PAL_HALT_LIGHT */
/*
* The group barrier in front of the rsm & ssm are necessary to ensure
* that none of the previous instructions in the same group are
* affected by the rsm/ssm.
*/
/* For spinlocks etc */
/*
* - clearing psr.i is implicitly serialized (visible by next insn)
* - setting psr.i requires data serialization
* - we need a stop-bit before reading PSR because we sometimes
* write a floating-point register right before reading the PSR
* and that writes to PSR.mfl
*/
#ifdef CONFIG_PARAVIRT
#define __local_save_flags() ia64_get_psr_i()
#else
#define __local_save_flags() ia64_getreg(_IA64_REG_PSR)
#endif
#define __local_irq_save(x) \
do { \
ia64_stop(); \
(x) = __local_save_flags(); \
ia64_stop(); \
ia64_rsm(IA64_PSR_I); \
} while (0)
#define __local_irq_disable() \
do { \
ia64_stop(); \
ia64_rsm(IA64_PSR_I); \
} while (0)
#define __local_irq_restore(x) ia64_intrin_local_irq_restore((x) & IA64_PSR_I)
#ifdef CONFIG_IA64_DEBUG_IRQ
extern unsigned long last_cli_ip;
# define __save_ip() last_cli_ip = ia64_getreg(_IA64_REG_IP)
# define local_irq_save(x) \
do { \
unsigned long __psr; \
\
__local_irq_save(__psr); \
if (__psr & IA64_PSR_I) \
__save_ip(); \
(x) = __psr; \
} while (0)
# define local_irq_disable() do { unsigned long __x; local_irq_save(__x); } while (0)
# define local_irq_restore(x) \
do { \
unsigned long __old_psr, __psr = (x); \
\
local_save_flags(__old_psr); \
__local_irq_restore(__psr); \
if ((__old_psr & IA64_PSR_I) && !(__psr & IA64_PSR_I)) \
__save_ip(); \
} while (0)
#else /* !CONFIG_IA64_DEBUG_IRQ */
# define local_irq_save(x) __local_irq_save(x)
# define local_irq_disable() __local_irq_disable()
# define local_irq_restore(x) __local_irq_restore(x)
#endif /* !CONFIG_IA64_DEBUG_IRQ */
#define local_irq_enable() ({ ia64_stop(); ia64_ssm(IA64_PSR_I); ia64_srlz_d(); })
#define local_save_flags(flags) ({ ia64_stop(); (flags) = __local_save_flags(); })
#define irqs_disabled() \
({ \
unsigned long __ia64_id_flags; \
local_save_flags(__ia64_id_flags); \
(__ia64_id_flags & IA64_PSR_I) == 0; \
})
#ifdef __KERNEL__