gallium/util: remove PIPE_THREAD_ROUTINE()

This was made unnecessary with fd33a6bcd7.

This was mostly done with:
find ./src -type f -exec sed -i -- \
's:PIPE_THREAD_ROUTINE(\([^,]*\), \([^)]*\)):int\n\1(void \*\2):g' {} \;

With some small manual tidy ups.

Reviewed-by: Plamena Manolova <plamena.manolova@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

src/gallium/auxiliary/os/os_thread.h

@@ -47,10 +47,7 @@
 #endif
 
 
-#define PIPE_THREAD_ROUTINE( name, param ) \
-   int name( void *param )
-
-static inline thrd_t pipe_thread_create( PIPE_THREAD_ROUTINE((*routine), ), void *param )
+static inline thrd_t pipe_thread_create(int (*routine)(void *), void *param)
 {
    thrd_t thread;
 #ifdef HAVE_PTHREAD

src/gallium/auxiliary/util/u_queue.c

@@ -135,7 +135,8 @@ struct thread_input {
    int thread_index;
 };
 
-static PIPE_THREAD_ROUTINE(util_queue_thread_func, input)
+static int
+util_queue_thread_func(void *input)
 {
    struct util_queue *queue = ((struct thread_input*)input)->queue;
    int thread_index = ((struct thread_input*)input)->thread_index;

src/gallium/drivers/ddebug/dd_draw.c

@@ -899,7 +899,8 @@ dd_dump_record(struct dd_context *dctx, struct dd_draw_record *record,
    fclose(f);
 }
 
-PIPE_THREAD_ROUTINE(dd_thread_pipelined_hang_detect, input)
+int
+dd_thread_pipelined_hang_detect(void *input)
 {
    struct dd_context *dctx = (struct dd_context *)input;
    struct dd_screen *dscreen = dd_screen(dctx->base.screen);

src/gallium/drivers/ddebug/dd_pipe.h

@@ -251,7 +251,8 @@ dd_context_create(struct dd_screen *dscreen, struct pipe_context *pipe);
 
 void
 dd_init_draw_functions(struct dd_context *dctx);
-PIPE_THREAD_ROUTINE(dd_thread_pipelined_hang_detect, input);
+int
+dd_thread_pipelined_hang_detect(void *input);
 
 
 static inline struct dd_context *

src/gallium/drivers/llvmpipe/lp_rast.c

@@ -781,7 +781,8 @@ lp_rast_finish( struct lp_rasterizer *rast )
  *   2. do work
  *   3. signal that we're done
  */
-static PIPE_THREAD_ROUTINE( thread_function, init_data )
+static int
+thread_function(void *init_data)
 {
    struct lp_rasterizer_task *task = (struct lp_rasterizer_task *) init_data;
    struct lp_rasterizer *rast = task->rast;

src/gallium/drivers/radeon/r600_gpu_load.c

@@ -132,7 +132,8 @@ static void r600_update_mmio_counters(struct r600_common_screen *rscreen,
 
 #undef UPDATE_COUNTER
 
-static PIPE_THREAD_ROUTINE(r600_gpu_load_thread, param)
+static int
+r600_gpu_load_thread(void *param)
 {
 	struct r600_common_screen *rscreen = (struct r600_common_screen*)param;
 	const int period_us = 1000000 / SAMPLES_PER_SEC;

src/gallium/drivers/rbug/rbug_core.c

@@ -58,7 +58,8 @@ struct rbug_rbug
    boolean running;
 };
 
-PIPE_THREAD_ROUTINE(rbug_thread, void_rbug);
+int
+rbug_thread(void *void_rbug);
 
 
 /**********************************************************
@@ -799,7 +800,8 @@ rbug_con(struct rbug_rbug *tr_rbug)
    tr_rbug->con = NULL;
 }
 
-PIPE_THREAD_ROUTINE(rbug_thread, void_tr_rbug)
+int
+rbug_thread(void *void_tr_rbug)
 {
    struct rbug_rbug *tr_rbug = void_tr_rbug;
    uint16_t port = 13370;

src/gallium/state_trackers/nine/nine_state.c

@@ -88,7 +88,8 @@ nine_csmt_wait_processed(struct csmt_context *ctx)
 
 /* CSMT worker thread */
 static
-PIPE_THREAD_ROUTINE(nine_csmt_worker, arg)
+int
+nine_csmt_worker(void *arg)
 {
     struct csmt_context *ctx = arg;
     struct csmt_instruction *instr;

src/gallium/tests/unit/pipe_barrier_test.c

@@ -66,7 +66,8 @@ static volatile int proceeded = 0;
    }
 
 
-static PIPE_THREAD_ROUTINE(thread_function, thread_data)
+static int
+thread_function(void *thread_data)
 {
    int thread_id = *((int *) thread_data);