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Commit 8bd969fe authored by Trilok Soni's avatar Trilok Soni Committed by Gerrit - the friendly Code Review server
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arm64: Make GENERIC_ATOMIC64 implementation compile for arm64 



GENERIC_ATOMIC64 is a C implementation of the atomic64_xxx APIs.
Enabling this feature requires some modifications in the generic
header files in order to make this feature compile for the arm64
targets.

Change-Id: Id7e55bd355b61e6b29a6622b353045b735fb011e
Signed-off-by: default avatarTrilok Soni <tsoni@codeaurora.org>
parent 3e5d75b2

arch/arm64/include/asm/atomic.h

+3 −0
Original line number Diff line number Diff line
@@ -134,6 +134,8 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u) 


#define atomic_add_negative(i,v) (atomic_add_return(i, v) < 0)





#ifndef CONFIG_GENERIC_ATOMIC64

/*

 * 64-bit atomic operations.

 */
@@ -252,5 +254,6 @@ static inline int atomic64_add_unless(atomic64_t *v, long a, long u) 
#define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)

#define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1LL, 0LL)



#endif /*!CONFIG_GENERIC_ATOMIC64*/

#endif

#endif

include/asm-generic/atomic-long.h

+3 −0
Original line number Diff line number Diff line
@@ -9,6 +9,9 @@ 
 */



#include <asm/types.h>

#ifdef CONFIG_GENERIC_ATOMIC64

#include <asm-generic/atomic64.h>

#endif



/*

 * Suppport for atomic_long_t

include/linux/types.h

+1 −1
Original line number Diff line number Diff line
@@ -177,7 +177,7 @@ typedef struct { 
	int counter;

} atomic_t;



#ifdef CONFIG_64BIT

#if defined(CONFIG_64BIT) && !defined(CONFIG_GENERIC_ATOMIC64)

typedef struct {

	long counter;

} atomic64_t;