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author | Guenter Roeck <linux@roeck-us.net> | 2013-08-30 06:01:49 -0700 |
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committer | Guenter Roeck <linux@roeck-us.net> | 2013-09-16 18:19:04 -0700 |
commit | 4b08478422040ae8cb11acc15d51f1cdb0ac39c8 (patch) | |
tree | 79718cea7b73f175d64e4c2073ea2585a7bd2337 /arch/h8300/include/asm/atomic.h | |
parent | 272b98c6455f00884f0350f775c5342358ebb73f (diff) | |
download | linux-4b08478422040ae8cb11acc15d51f1cdb0ac39c8.tar.gz linux-4b08478422040ae8cb11acc15d51f1cdb0ac39c8.tar.bz2 linux-4b08478422040ae8cb11acc15d51f1cdb0ac39c8.zip |
Drop support for Renesas H8/300 (h8300) architecture
H8/300 has been dead for several years, and the kernel for it
has not compiled for ages. Drop support for it.
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'arch/h8300/include/asm/atomic.h')
-rw-r--r-- | arch/h8300/include/asm/atomic.h | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/arch/h8300/include/asm/atomic.h b/arch/h8300/include/asm/atomic.h deleted file mode 100644 index 40901e353c21..000000000000 --- a/arch/h8300/include/asm/atomic.h +++ /dev/null @@ -1,146 +0,0 @@ -#ifndef __ARCH_H8300_ATOMIC__ -#define __ARCH_H8300_ATOMIC__ - -#include <linux/types.h> -#include <asm/cmpxchg.h> - -/* - * Atomic operations that C can't guarantee us. Useful for - * resource counting etc.. - */ - -#define ATOMIC_INIT(i) { (i) } - -#define atomic_read(v) (*(volatile int *)&(v)->counter) -#define atomic_set(v, i) (((v)->counter) = i) - -#include <linux/kernel.h> - -static __inline__ int atomic_add_return(int i, atomic_t *v) -{ - unsigned long flags; - int ret; - local_irq_save(flags); - ret = v->counter += i; - local_irq_restore(flags); - return ret; -} - -#define atomic_add(i, v) atomic_add_return(i, v) -#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0) - -static __inline__ int atomic_sub_return(int i, atomic_t *v) -{ - unsigned long flags; - int ret; - local_irq_save(flags); - ret = v->counter -= i; - local_irq_restore(flags); - return ret; -} - -#define atomic_sub(i, v) atomic_sub_return(i, v) -#define atomic_sub_and_test(i,v) (atomic_sub_return(i, v) == 0) - -static __inline__ int atomic_inc_return(atomic_t *v) -{ - unsigned long flags; - int ret; - local_irq_save(flags); - v->counter++; - ret = v->counter; - local_irq_restore(flags); - return ret; -} - -#define atomic_inc(v) atomic_inc_return(v) - -/* - * atomic_inc_and_test - increment and test - * @v: pointer of type atomic_t - * - * Atomically increments @v by 1 - * and returns true if the result is zero, or false for all - * other cases. - */ -#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) - -static __inline__ int atomic_dec_return(atomic_t *v) -{ - unsigned long flags; - int ret; - local_irq_save(flags); - --v->counter; - ret = v->counter; - local_irq_restore(flags); - return ret; -} - -#define atomic_dec(v) atomic_dec_return(v) - -static __inline__ int atomic_dec_and_test(atomic_t *v) -{ - unsigned long flags; - int ret; - local_irq_save(flags); - --v->counter; - ret = v->counter; - local_irq_restore(flags); - return ret == 0; -} - -static inline int atomic_cmpxchg(atomic_t *v, int old, int new) -{ - int ret; - unsigned long flags; - - local_irq_save(flags); - ret = v->counter; - if (likely(ret == old)) - v->counter = new; - local_irq_restore(flags); - return ret; -} - -static inline int __atomic_add_unless(atomic_t *v, int a, int u) -{ - int ret; - unsigned long flags; - - local_irq_save(flags); - ret = v->counter; - if (ret != u) - v->counter += a; - local_irq_restore(flags); - return ret; -} - -static __inline__ void atomic_clear_mask(unsigned long mask, unsigned long *v) -{ - __asm__ __volatile__("stc ccr,r1l\n\t" - "orc #0x80,ccr\n\t" - "mov.l %0,er0\n\t" - "and.l %1,er0\n\t" - "mov.l er0,%0\n\t" - "ldc r1l,ccr" - : "=m" (*v) : "g" (~(mask)) :"er0","er1"); -} - -static __inline__ void atomic_set_mask(unsigned long mask, unsigned long *v) -{ - __asm__ __volatile__("stc ccr,r1l\n\t" - "orc #0x80,ccr\n\t" - "mov.l %0,er0\n\t" - "or.l %1,er0\n\t" - "mov.l er0,%0\n\t" - "ldc r1l,ccr" - : "=m" (*v) : "g" (mask) :"er0","er1"); -} - -/* Atomic operations are already serializing */ -#define smp_mb__before_atomic_dec() barrier() -#define smp_mb__after_atomic_dec() barrier() -#define smp_mb__before_atomic_inc() barrier() -#define smp_mb__after_atomic_inc() barrier() - -#endif /* __ARCH_H8300_ATOMIC __ */ |