diff options
author | Mikael Starvik <mikael.starvik@axis.com> | 2005-07-27 20:44:44 +0200 |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-07-28 01:26:01 +0200 |
commit | 51533b615e605d86154ec1b4e585c8ca1b0b15b7 (patch) | |
tree | 4a6d7d8494d2017632d83624fb71b36031e0e7e5 /include/asm-cris/arch-v32/system.h | |
parent | [PATCH] CRIS update: updates for 2.6.12 (diff) | |
download | linux-51533b615e605d86154ec1b4e585c8ca1b0b15b7.tar.xz linux-51533b615e605d86154ec1b4e585c8ca1b0b15b7.zip |
[PATCH] CRIS update: new subarchitecture v32
New CRIS sub architecture named v32.
From: Dave Jones <davej@redhat.com>
Fix swapped kmalloc args
Signed-off-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-cris/arch-v32/system.h')
-rw-r--r-- | include/asm-cris/arch-v32/system.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/include/asm-cris/arch-v32/system.h b/include/asm-cris/arch-v32/system.h new file mode 100644 index 000000000000..b9afbb95e0bb --- /dev/null +++ b/include/asm-cris/arch-v32/system.h @@ -0,0 +1,79 @@ +#ifndef _ASM_CRIS_ARCH_SYSTEM_H +#define _ASM_CRIS_ARCH_SYSTEM_H + +#include <linux/config.h> + +/* Read the CPU version register. */ +extern inline unsigned long rdvr(void) +{ + unsigned char vr; + + __asm__ __volatile__ ("move $vr, %0" : "=rm" (vr)); + return vr; +} + +#define cris_machine_name "crisv32" + +/* Read the user-mode stack pointer. */ +extern inline unsigned long rdusp(void) +{ + unsigned long usp; + + __asm__ __volatile__ ("move $usp, %0" : "=rm" (usp)); + return usp; +} + +/* Read the current stack pointer. */ +extern inline unsigned long rdsp(void) +{ + unsigned long sp; + + __asm__ __volatile__ ("move.d $sp, %0" : "=rm" (sp)); + return sp; +} + +/* Write the user-mode stack pointer. */ +#define wrusp(usp) __asm__ __volatile__ ("move %0, $usp" : : "rm" (usp)) + +#define nop() __asm__ __volatile__ ("nop"); + +#define xchg(ptr,x) \ + ((__typeof__(*(ptr)))__xchg((unsigned long) (x),(ptr),sizeof(*(ptr)))) + +#define tas(ptr) (xchg((ptr),1)) + +struct __xchg_dummy { unsigned long a[100]; }; +#define __xg(x) ((struct __xchg_dummy *)(x)) + +/* Used for interrupt control. */ +#define local_save_flags(x) \ + __asm__ __volatile__ ("move $ccs, %0" : "=rm" (x) : : "memory"); + +#define local_irq_restore(x) \ + __asm__ __volatile__ ("move %0, $ccs" : : "rm" (x) : "memory"); + +#define local_irq_disable() __asm__ __volatile__ ("di" : : : "memory"); +#define local_irq_enable() __asm__ __volatile__ ("ei" : : : "memory"); + +#define irqs_disabled() \ +({ \ + unsigned long flags; \ + \ + local_save_flags(flags);\ + !(flags & (1 << I_CCS_BITNR)); \ +}) + +/* Used for spinlocks, etc. */ +#define local_irq_save(x) \ + __asm__ __volatile__ ("move $ccs, %0\n\tdi" : "=rm" (x) : : "memory"); + +#ifdef CONFIG_SMP +typedef struct { + volatile unsigned int lock __attribute__ ((aligned(4))); +#ifdef CONFIG_PREEMPT + unsigned int break_lock; +#endif +} spinlock_t; +#endif + +#endif /* _ASM_CRIS_ARCH_SYSTEM_H */ |