From: Christoph Bumiller <christoph.bumil...@speed.at>
At this moment we use only zero or positive values.
v2: Implement it for also for Solaris, MSVC assembly
and enable for other combinations.
v3: Replace MSVC assembly by assert + warning during compilation
Signed-off-by: David Heidelberg <da...@ixit.cz>
---
src/gallium/auxiliary/util/u_atomic.h | 72 +++++++++++++++++++++++++++++++++++
1 file changed, 72 insertions(+)
diff --git a/src/gallium/auxiliary/util/u_atomic.h
b/src/gallium/auxiliary/util/u_atomic.h
index 2f2b42b..9279073 100644
--- a/src/gallium/auxiliary/util/u_atomic.h
+++ b/src/gallium/auxiliary/util/u_atomic.h
@@ -69,6 +69,18 @@ p_atomic_dec(int32_t *v)
}
static INLINE int32_t
+p_atomic_inc_return(int32_t *v)
+{
+ return __sync_add_and_fetch(v, 1);
+}
+
+static INLINE int32_t
+p_atomic_dec_return(int32_t *v)
+{
+ return __sync_sub_and_fetch(v, 1);
+}
+
+static INLINE int32_t
p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
{
return __sync_val_compare_and_swap(v, old, _new);
@@ -116,6 +128,18 @@ p_atomic_dec(int32_t *v)
}
static INLINE int32_t
+p_atomic_inc_return(int32_t *v)
+{
+ return __sync_add_and_fetch(v, 1);
+}
+
+static INLINE int32_t
+p_atomic_dec_return(int32_t *v)
+{
+ return __sync_sub_and_fetch(v, 1);
+}
+
+static INLINE int32_t
p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
{
return __sync_val_compare_and_swap(v, old, _new);
@@ -161,6 +185,18 @@ p_atomic_dec(int32_t *v)
}
static INLINE int32_t
+p_atomic_inc_return(int32_t *v)
+{
+ return __sync_add_and_fetch(v, 1);
+}
+
+static INLINE int32_t
+p_atomic_dec_return(int32_t *v)
+{
+ return __sync_sub_and_fetch(v, 1);
+}
+
+static INLINE int32_t
p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
{
return __sync_val_compare_and_swap(v, old, _new);
@@ -186,6 +222,8 @@ p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
#define p_atomic_dec_zero(_v) ((boolean) --(*(_v)))
#define p_atomic_inc(_v) ((void) (*(_v))++)
#define p_atomic_dec(_v) ((void) (*(_v))--)
+#define p_atomic_inc_return(_v) ((*(_v))++)
+#define p_atomic_dec_return(_v) ((*(_v))--)
#define p_atomic_cmpxchg(_v, old, _new) (*(_v) == old ? *(_v) = (_new) : *(_v))
#endif
@@ -197,6 +235,8 @@ p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
#define PIPE_ATOMIC "MSVC x86 assembly"
+#include <assert.h>
+
#ifdef __cplusplus
extern "C" {
#endif
@@ -236,6 +276,24 @@ p_atomic_dec(int32_t *v)
}
}
+#pragma message ( "Warning: p_atomic_dec_return and p_atomic_inc_return
unimplemented for PIPE_ATOMIC_ASM_MSVC_X86" )
+
+static INLINE int32_t
+p_atomic_inc_return(int32_t *v)
+{
+ (void) v;
+ assert(0);
+ return 0;
+}
+
+static INLINE int32_t
+p_atomic_dec_return(int32_t *v)
+{
+ (void) v;
+ assert(0);
+ return 0;
+}
+
static INLINE int32_t
p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
{
@@ -288,6 +346,12 @@ p_atomic_inc(int32_t *v)
_InterlockedIncrement((long *)v);
}
+static INLINE int32_t
+p_atomic_inc_return(int32_t *v)
+{
+ return _InterlockedIncrement((long *)v);
+}
+
static INLINE void
p_atomic_dec(int32_t *v)
{
@@ -295,6 +359,12 @@ p_atomic_dec(int32_t *v)
}
static INLINE int32_t
+p_atomic_dec_return(int32_t *v)
+{
+ return _InterlockedDecrement((long *)v);
+}
+
+static INLINE int32_t
p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
{
return _InterlockedCompareExchange((long *)v, _new, old);
@@ -329,6 +399,8 @@ p_atomic_dec_zero(int32_t *v)
#define p_atomic_inc(_v) atomic_inc_32((uint32_t *) _v)
#define p_atomic_dec(_v) atomic_dec_32((uint32_t *) _v)
+#define p_atomic_inc_return(_v) atomic_inc_32_nv((uint32_t *) _v)
+#define p_atomic_dec_return(_v) atomic_dec_32_nv((uint32_t *) _v)
#define p_atomic_cmpxchg(_v, _old, _new) \
atomic_cas_32( (uint32_t *) _v, (uint32_t) _old, (uint32_t) _new)
--
2.1.0
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