brain-hackers_pepepper-mirror
/
linux-brain
mirror of https://github.com/brain-hackers/linux-brain.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

locking/atomic, alpha: Use s64 for atomic64 

As a step towards making the atomic64 API use consistent types treewide,
let's have the alpha atomic64 implementation use s64 as the underlying
type for atomic64_t, rather than long, matching the generated headers.

As atomic64_read() depends on the generic defintion of atomic64_t, this
still returns long. This will be converted in a subsequent patch.

Otherwise, there should be no functional change as a result of this
patch.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: aou@eecs.berkeley.edu
Cc: arnd@arndb.de
Cc: bp@alien8.de
Cc: catalin.marinas@arm.com
Cc: davem@davemloft.net
Cc: fenghua.yu@intel.com
Cc: heiko.carstens@de.ibm.com
Cc: herbert@gondor.apana.org.au
Cc: jhogan@kernel.org
Cc: linux@armlinux.org.uk
Cc: mpe@ellerman.id.au
Cc: palmer@sifive.com
Cc: paul.burton@mips.com
Cc: paulus@samba.org
Cc: ralf@linux-mips.org
Cc: tony.luck@intel.com
Cc: vgupta@synopsys.com
Link: https://lkml.kernel.org/r/20190522132250.26499-5-mark.rutland@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Mark Rutland 2019-05-22 14:22:36 +01:00 committed by Ingo Molnar
parent 9255813d58
commit 0203fdc160
1 changed files with 10 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
arch/alpha/include/asm/atomic.h
View File

@ -93,9 +93,9 @@ static inline int atomic_fetch_##op##_relaxed(int i, atomic_t *v) \
}
#define ATOMIC64_OP(op, asm_op) \
static __inline__ void atomic64_##op(long i, atomic64_t * v) \
static __inline__ void atomic64_##op(s64 i, atomic64_t * v) \
{ \
unsigned long temp; \
s64 temp; \
__asm__ __volatile__( \
"1: ldq_l %0,%1\n" \
" " #asm_op " %0,%2,%0\n" \
@ -109,9 +109,9 @@ static __inline__ void atomic64_##op(long i, atomic64_t * v) \
} \
#define ATOMIC64_OP_RETURN(op, asm_op) \
static __inline__ long atomic64_##op##_return_relaxed(long i, atomic64_t * v) \
static __inline__ s64 atomic64_##op##_return_relaxed(s64 i, atomic64_t * v) \
{ \
long temp, result; \
s64 temp, result; \
__asm__ __volatile__( \
"1: ldq_l %0,%1\n" \
" " #asm_op " %0,%3,%2\n" \
@ -128,9 +128,9 @@ static __inline__ long atomic64_##op##_return_relaxed(long i, atomic64_t * v) \
}
#define ATOMIC64_FETCH_OP(op, asm_op) \
static __inline__ long atomic64_fetch_##op##_relaxed(long i, atomic64_t * v) \
static __inline__ s64 atomic64_fetch_##op##_relaxed(s64 i, atomic64_t * v) \
{ \
long temp, result; \
s64 temp, result; \
__asm__ __volatile__( \
"1: ldq_l %2,%1\n" \
" " #asm_op " %2,%3,%0\n" \
@ -246,9 +246,9 @@ static __inline__ int atomic_fetch_add_unless(atomic_t *v, int a, int u)
* Atomically adds @a to @v, so long as it was not @u.
* Returns the old value of @v.
*/
static __inline__ long atomic64_fetch_add_unless(atomic64_t *v, long a, long u)
static __inline__ s64 atomic64_fetch_add_unless(atomic64_t *v, s64 a, s64 u)
{
long c, new, old;
s64 c, new, old;
smp_mb();
__asm__ __volatile__(
"1: ldq_l %[old],%[mem]\n"
@ -276,9 +276,9 @@ static __inline__ long atomic64_fetch_add_unless(atomic64_t *v, long a, long u)
* The function returns the old value of *v minus 1, even if
* the atomic variable, v, was not decremented.
*/
static inline long atomic64_dec_if_positive(atomic64_t *v)
static inline s64 atomic64_dec_if_positive(atomic64_t *v)
{
long old, tmp;
s64 old, tmp;
smp_mb();
__asm__ __volatile__(
"1: ldq_l %[old],%[mem]\n"