gallium: Move p_thread.h and p_atomic.h out of gallium interfaces.

Into os/os_thread.h and util/u_atomic.h respectively.

12 files changed, 537 insertions, 10 deletions

diff --git a/src/gallium/auxiliary/draw/draw_pt_util.c b/src/gallium/auxiliary/draw/draw_pt_util.c
index 17c3b8cec2..3236d38e6a 100644
--- a/src/gallium/auxiliary/draw/draw_pt_util.c
+++ b/src/gallium/auxiliary/draw/draw_pt_util.c
@@ -33,6 +33,7 @@
 #include "draw/draw_context.h"
 #include "draw/draw_private.h"
 #include "draw/draw_pt.h"
+#include "util/u_debug.h"
 
 void draw_pt_split_prim(unsigned prim, unsigned *first, unsigned *incr)
 {
diff --git a/src/gallium/auxiliary/os/os_thread.h b/src/gallium/auxiliary/os/os_thread.h
new file mode 100644
index 0000000000..63108605d3
--- /dev/null
+++ b/src/gallium/auxiliary/os/os_thread.h
@@ -0,0 +1,279 @@
+/**************************************************************************
+ * 
+ * Copyright 1999-2006 Brian Paul
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+
+/**
+ * @file
+ * 
+ * Thread, mutex, condition var and thread-specific data functions.
+ */
+
+
+#ifndef OS_THREAD_H_
+#define OS_THREAD_H_
+
+
+#include "pipe/p_compiler.h"
+#include "util/u_debug.h" /* for assert */
+
+
+#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_APPLE) || defined(PIPE_OS_HAIKU)
+
+#include <pthread.h> /* POSIX threads headers */
+#include <stdio.h> /* for perror() */
+
+#define PIPE_THREAD_HAVE_CONDVAR
+
+typedef pthread_t pipe_thread;
+
+#define PIPE_THREAD_ROUTINE( name, param ) \
+   void *name( void *param )
+
+static INLINE pipe_thread pipe_thread_create( void *(* routine)( void *), void *param )
+{
+   pipe_thread thread;
+   if (pthread_create( &thread, NULL, routine, param ))
+      return 0;
+   return thread;
+}
+
+static INLINE int pipe_thread_wait( pipe_thread thread )
+{
+   return pthread_join( thread, NULL );
+}
+
+static INLINE int pipe_thread_destroy( pipe_thread thread )
+{
+   return pthread_detach( thread );
+}
+
+typedef pthread_mutex_t pipe_mutex;
+typedef pthread_cond_t pipe_condvar;
+
+#define pipe_static_mutex(mutex) \
+   static pipe_mutex mutex = PTHREAD_MUTEX_INITIALIZER
+
+#define pipe_mutex_init(mutex) \
+   (void) pthread_mutex_init(&(mutex), NULL)
+
+#define pipe_mutex_destroy(mutex) \
+   pthread_mutex_destroy(&(mutex))
+
+#define pipe_mutex_lock(mutex) \
+   (void) pthread_mutex_lock(&(mutex))
+
+#define pipe_mutex_unlock(mutex) \
+   (void) pthread_mutex_unlock(&(mutex))
+
+#define pipe_static_condvar(mutex) \
+   static pipe_condvar mutex = PTHREAD_COND_INITIALIZER
+
+#define pipe_condvar_init(cond)	\
+   pthread_cond_init(&(cond), NULL)
+
+#define pipe_condvar_destroy(cond) \
+   pthread_cond_destroy(&(cond))
+
+#define pipe_condvar_wait(cond, mutex) \
+  pthread_cond_wait(&(cond), &(mutex))
+
+#define pipe_condvar_signal(cond) \
+  pthread_cond_signal(&(cond))
+
+#define pipe_condvar_broadcast(cond) \
+  pthread_cond_broadcast(&(cond))
+
+
+#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
+
+#include <windows.h>
+
+typedef HANDLE pipe_thread;
+
+#define PIPE_THREAD_ROUTINE( name, param ) \
+   void * WINAPI name( void *param )
+
+static INLINE pipe_thread pipe_thread_create( void *(WINAPI * routine)( void *), void *param )
+{
+   DWORD id;
+   return CreateThread( NULL, 0, (LPTHREAD_START_ROUTINE) routine, param, 0, &id );
+}
+
+static INLINE int pipe_thread_wait( pipe_thread thread )
+{
+   if (WaitForSingleObject( thread, INFINITE ) == WAIT_OBJECT_0)
+      return 0;
+   return -1;
+}
+
+static INLINE int pipe_thread_destroy( pipe_thread thread )
+{
+   if (CloseHandle( thread ))
+      return 0;
+   return -1;
+}
+
+typedef CRITICAL_SECTION pipe_mutex;
+
+#define pipe_static_mutex(mutex) \
+   /*static*/ pipe_mutex mutex = {0,0,0,0,0,0}
+
+#define pipe_mutex_init(mutex) \
+   InitializeCriticalSection(&mutex)
+
+#define pipe_mutex_destroy(mutex) \
+   DeleteCriticalSection(&mutex)
+
+#define pipe_mutex_lock(mutex) \
+   EnterCriticalSection(&mutex)
+
+#define pipe_mutex_unlock(mutex) \
+   LeaveCriticalSection(&mutex)
+
+/* XXX: dummy definitions, make it compile */
+
+typedef unsigned pipe_condvar;
+
+#define pipe_condvar_init(condvar) \
+   (void) condvar
+
+#define pipe_condvar_broadcast(condvar) \
+   (void) condvar
+
+#else
+
+/** Dummy definitions */
+
+typedef unsigned pipe_thread;
+typedef unsigned pipe_mutex;
+typedef unsigned pipe_condvar;
+
+#define pipe_static_mutex(mutex) \
+   static pipe_mutex mutex = 0
+
+#define pipe_mutex_init(mutex) \
+   (void) mutex
+
+#define pipe_mutex_destroy(mutex) \
+   (void) mutex
+
+#define pipe_mutex_lock(mutex) \
+   (void) mutex
+
+#define pipe_mutex_unlock(mutex) \
+   (void) mutex
+
+#define pipe_static_condvar(condvar) \
+   static unsigned condvar = 0
+
+#define pipe_condvar_init(condvar) \
+   (void) condvar
+
+#define pipe_condvar_destroy(condvar) \
+   (void) condvar
+
+#define pipe_condvar_wait(condvar, mutex) \
+   (void) condvar
+
+#define pipe_condvar_signal(condvar) \
+   (void) condvar
+
+#define pipe_condvar_broadcast(condvar) \
+   (void) condvar
+
+
+#endif  /* PIPE_OS_? */
+
+
+
+/*
+ * Thread-specific data.
+ */
+
+typedef struct {
+#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_APPLE) || defined(PIPE_OS_HAIKU)
+   pthread_key_t key;
+#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
+   DWORD key;
+#endif
+   int initMagic;
+} pipe_tsd;
+
+
+#define PIPE_TSD_INIT_MAGIC 0xff8adc98
+
+
+static INLINE void
+pipe_tsd_init(pipe_tsd *tsd)
+{
+#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_APPLE) || defined(PIPE_OS_HAIKU)
+   if (pthread_key_create(&tsd->key, NULL/*free*/) != 0) {
+      perror("pthread_key_create(): failed to allocate key for thread specific data");
+      exit(-1);
+   }
+#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
+   assert(0);
+#endif
+   tsd->initMagic = PIPE_TSD_INIT_MAGIC;
+}
+
+static INLINE void *
+pipe_tsd_get(pipe_tsd *tsd)
+{
+   if (tsd->initMagic != (int) PIPE_TSD_INIT_MAGIC) {
+      pipe_tsd_init(tsd);
+   }
+#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_APPLE) || defined(PIPE_OS_HAIKU)
+   return pthread_getspecific(tsd->key);
+#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
+   assert(0);
+   return NULL;
+#else
+   assert(0);
+   return NULL;
+#endif
+}
+
+static INLINE void
+pipe_tsd_set(pipe_tsd *tsd, void *value)
+{
+   if (tsd->initMagic != (int) PIPE_TSD_INIT_MAGIC) {
+      pipe_tsd_init(tsd);
+   }
+#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_APPLE) || defined(PIPE_OS_HAIKU)
+   if (pthread_setspecific(tsd->key, value) != 0) {
+      perror("pthread_set_specific() failed");
+      exit(-1);
+   }
+#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
+   assert(0);
+#else
+   assert(0);
+#endif
+}
+
+
+
+#endif /* OS_THREAD_H_ */
diff --git a/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c b/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c
index ba087ac0f3..95eb5f6563 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c
+++ b/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c
@@ -44,7 +44,7 @@
 #include "pipe/p_compiler.h"
 #include "pipe/p_defines.h"
 #include "util/u_debug.h"
-#include "pipe/p_thread.h"
+#include "os/os_thread.h"
 #include "util/u_memory.h"
 #include "util/u_double_list.h"
 
diff --git a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_cache.c b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_cache.c
index 7b34c8e357..c1498318df 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_cache.c
+++ b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_cache.c
@@ -36,7 +36,7 @@
 
 #include "pipe/p_compiler.h"
 #include "util/u_debug.h"
-#include "pipe/p_thread.h"
+#include "os/os_thread.h"
 #include "util/u_memory.h"
 #include "util/u_double_list.h"
 #include "util/u_time.h"
diff --git a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_debug.c b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_debug.c
index 8f74180a11..93f8960641 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_debug.c
+++ b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_debug.c
@@ -35,7 +35,7 @@
 
 #include "pipe/p_compiler.h"
 #include "util/u_debug.h"
-#include "pipe/p_thread.h"
+#include "os/os_thread.h"
 #include "util/u_math.h"
 #include "util/u_memory.h"
 #include "util/u_double_list.h"
diff --git a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_mm.c b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_mm.c
index 6400fc5b0a..63195715d6 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_mm.c
+++ b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_mm.c
@@ -35,7 +35,7 @@
 
 #include "pipe/p_defines.h"
 #include "util/u_debug.h"
-#include "pipe/p_thread.h"
+#include "os/os_thread.h"
 #include "util/u_memory.h"
 #include "util/u_double_list.h"
 #include "util/u_mm.h"
diff --git a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_pool.c b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_pool.c
index 7fd65ed226..fea234ae8c 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_pool.c
+++ b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_pool.c
@@ -37,7 +37,7 @@
 
 #include "pipe/p_compiler.h"
 #include "util/u_debug.h"
-#include "pipe/p_thread.h"
+#include "os/os_thread.h"
 #include "pipe/p_defines.h"
 #include "util/u_memory.h"
 #include "util/u_double_list.h"
diff --git a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_slab.c b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_slab.c
index d21910d0bf..c445cb578b 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_slab.c
+++ b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_slab.c
@@ -38,7 +38,7 @@
 
 #include "pipe/p_compiler.h"
 #include "util/u_debug.h"
-#include "pipe/p_thread.h"
+#include "os/os_thread.h"
 #include "pipe/p_defines.h"
 #include "util/u_memory.h"
 #include "util/u_double_list.h"
diff --git a/src/gallium/auxiliary/rtasm/rtasm_execmem.c b/src/gallium/auxiliary/rtasm/rtasm_execmem.c
index ffed768f97..65d5ce795b 100644
--- a/src/gallium/auxiliary/rtasm/rtasm_execmem.c
+++ b/src/gallium/auxiliary/rtasm/rtasm_execmem.c
@@ -32,7 +32,7 @@
 
 #include "pipe/p_compiler.h"
 #include "util/u_debug.h"
-#include "pipe/p_thread.h"
+#include "os/os_thread.h"
 #include "util/u_memory.h"
 
 #include "rtasm_execmem.h"
@@ -58,7 +58,7 @@
 
 #include <unistd.h>
 #include <sys/mman.h>
-#include "pipe/p_thread.h"
+#include "os/os_thread.h"
 #include "util/u_mm.h"
 
 #define EXEC_HEAP_SIZE (10*1024*1024)
diff --git a/src/gallium/auxiliary/util/u_atomic.h b/src/gallium/auxiliary/util/u_atomic.h
new file mode 100644
index 0000000000..1c042c3ede
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_atomic.h
@@ -0,0 +1,247 @@
+/**
+ * Many similar implementations exist. See for example libwsbm
+ * or the linux kernel include/atomic.h
+ *
+ * No copyright claimed on this file.
+ *
+ */
+
+#ifndef U_ATOMIC_H
+#define U_ATOMIC_H
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_defines.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Favor OS-provided implementations.
+ *
+ * Where no OS-provided implementation is available, fall back to
+ * locally coded assembly, compiler intrinsic or ultimately a
+ * mutex-based implementation.
+ */
+#if (defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) || \
+     defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT))
+#define PIPE_ATOMIC_OS_UNLOCKED 
+#elif defined(PIPE_CC_MSVC)
+#define PIPE_ATOMIC_MSVC_INTRINSIC
+#elif (defined(PIPE_CC_MSVC) && defined(PIPE_ARCH_X86))
+#define PIPE_ATOMIC_ASM_MSVC_X86                
+#elif (defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86))
+#define PIPE_ATOMIC_ASM_GCC_X86
+#elif defined(PIPE_CC_GCC)
+#define PIPE_ATOMIC_GCC_INTRINSIC
+#else
+#error "Unsupported platform"
+#endif
+
+
+
+#if defined(PIPE_ATOMIC_ASM_GCC_X86)
+
+#define PIPE_ATOMIC "GCC x86 assembly"
+
+#define p_atomic_set(_v, _i) (*(_v) = (_i))
+#define p_atomic_read(_v) (*(_v))
+
+
+static INLINE boolean
+p_atomic_dec_zero(int32_t *v)
+{
+   unsigned char c;
+
+   __asm__ __volatile__("lock; decl %0; sete %1":"+m"(*v), "=qm"(c)
+			::"memory");
+
+   return c != 0;
+}
+
+static INLINE void
+p_atomic_inc(int32_t *v)
+{
+   __asm__ __volatile__("lock; incl %0":"+m"(*v));
+}
+
+static INLINE void
+p_atomic_dec(int32_t *v)
+{
+   __asm__ __volatile__("lock; decl %0":"+m"(*v));
+}
+
+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);
+}
+#endif
+
+
+
+/* Implementation using GCC-provided synchronization intrinsics
+ */
+#if defined(PIPE_ATOMIC_GCC_INTRINSIC)
+
+#define PIPE_ATOMIC "GCC Sync Intrinsics"
+
+#define p_atomic_set(_v, _i) (*(_v) = (_i))
+#define p_atomic_read(_v) (*(_v))
+
+
+static INLINE boolean
+p_atomic_dec_zero(int32_t *v)
+{
+   return (__sync_sub_and_fetch(v, 1) == 0);
+}
+
+static INLINE void
+p_atomic_inc(int32_t *v)
+{
+   (void) __sync_add_and_fetch(v, 1);
+}
+
+static INLINE void
+p_atomic_dec(int32_t *v)
+{
+   (void) __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);
+}
+#endif
+
+
+
+/* Unlocked version for single threaded environments, such as some
+ * windows kernel modules.
+ */
+#if defined(PIPE_ATOMIC_OS_UNLOCKED) 
+
+#define PIPE_ATOMIC "Unlocked"
+
+#define p_atomic_set(_v, _i) (*(_v) = (_i))
+#define p_atomic_read(_v) (*(_v))
+#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_cmpxchg(_v, old, _new) (*(_v) == old ? *(_v) = (_new) : *(_v))
+
+#endif
+
+
+/* Locally coded assembly for MSVC on x86:
+ */
+#if defined(PIPE_ATOMIC_ASM_MSVC_X86)
+
+#define PIPE_ATOMIC "MSVC x86 assembly"
+
+#define p_atomic_set(_v, _i) (*(_v) = (_i))
+#define p_atomic_read(_v) (*(_v))
+
+static INLINE boolean
+p_atomic_dec_zero(int32_t *v)
+{
+   unsigned char c;
+
+   __asm {
+      mov       eax, [v]
+      lock dec  dword ptr [eax]
+      sete      byte ptr [c]
+   }
+
+   return c != 0;
+}
+
+static INLINE void
+p_atomic_inc(int32_t *v)
+{
+   __asm {
+      mov       eax, [v]
+      lock inc  dword ptr [eax]
+   }
+}
+
+static INLINE void
+p_atomic_dec(int32_t *v)
+{
+   __asm {
+      mov       eax, [v]
+      lock dec  dword ptr [eax]
+   }
+}
+
+static INLINE int32_t
+p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
+{
+   int32_t orig;
+
+   __asm {
+      mov ecx, [v]
+      mov eax, [old]
+      mov edx, [_new]
+      lock cmpxchg [ecx], edx
+      mov [orig], eax
+   }
+
+   return orig;
+}
+#endif
+
+
+#if defined(PIPE_ATOMIC_MSVC_INTRINSIC)
+
+#define PIPE_ATOMIC "MSVC Intrinsics"
+
+#include <intrin.h>
+
+#pragma intrinsic(_InterlockedIncrement)
+#pragma intrinsic(_InterlockedDecrement)
+#pragma intrinsic(_InterlockedCompareExchange)
+
+#define p_atomic_set(_v, _i) (*(_v) = (_i))
+#define p_atomic_read(_v) (*(_v))
+
+static INLINE boolean
+p_atomic_dec_zero(int32_t *v)
+{
+   return _InterlockedDecrement(v) == 0;
+}
+
+static INLINE void
+p_atomic_inc(int32_t *v)
+{
+   _InterlockedIncrement(v);
+}
+
+static INLINE void
+p_atomic_dec(int32_t *v)
+{
+   _InterlockedDecrement(v);
+}
+
+static INLINE int32_t
+p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
+{
+   return _InterlockedCompareExchange(v, _new, old);
+}
+
+#endif
+
+
+
+#ifndef PIPE_ATOMIC
+#error "No pipe_atomic implementation selected"
+#endif
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* U_ATOMIC_H */
diff --git a/src/gallium/auxiliary/util/u_inlines.h b/src/gallium/auxiliary/util/u_inlines.h
index 72a4d6d508..e95d58ea86 100644
--- a/src/gallium/auxiliary/util/u_inlines.h
+++ b/src/gallium/auxiliary/util/u_inlines.h
@@ -33,7 +33,7 @@
 #include "pipe/p_state.h"
 #include "pipe/p_screen.h"
 #include "util/u_debug.h"
-#include "pipe/p_atomic.h"
+#include "util/u_atomic.h"
 
 
 #ifdef __cplusplus
diff --git a/src/gallium/auxiliary/util/u_ringbuffer.c b/src/gallium/auxiliary/util/u_ringbuffer.c
index 3f43a19e01..95d45ebb71 100644
--- a/src/gallium/auxiliary/util/u_ringbuffer.c
+++ b/src/gallium/auxiliary/util/u_ringbuffer.c
@@ -1,5 +1,5 @@
 
-#include "pipe/p_thread.h"
+#include "os/os_thread.h"
 #include "pipe/p_defines.h"
 #include "util/u_ringbuffer.h"
 #include "util/u_math.h"