r600/sfn: Correct ssbo instruction handling

[mesa.git] / src / gallium / auxiliary / rtasm / rtasm_execmem.c

diff --git a/src/gallium/auxiliary/rtasm/rtasm_execmem.c b/src/gallium/auxiliary/rtasm/rtasm_execmem.c
index bb3b1a4c25f768773bbbd7bd3b59fed1bc18ff65..fcb67a62de0fd23759e0a2f0b788029d06e1242f 100644 (file)
--- a/src/gallium/auxiliary/rtasm/rtasm_execmem.c
+++ b/src/gallium/auxiliary/rtasm/rtasm_execmem.c
@@ -15,9 +15,10 @@
  * 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.
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
  *
  **************************************************************************/
 
@@ -31,43 +32,55 @@
 
 
 #include "pipe/p_compiler.h"
-#include "pipe/p_debug.h"
-#include "pipe/p_thread.h"
+#include "util/u_debug.h"
+#include "os/os_thread.h"
 #include "util/u_memory.h"
 
 #include "rtasm_execmem.h"
 
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+
+#if defined(PIPE_OS_WINDOWS)
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN 1
+#endif
+#include <windows.h>
+#endif
+
+#if defined(PIPE_OS_UNIX)
 
-#if defined(__linux__)
 
 /*
  * Allocate a large block of memory which can hold code then dole it out
  * in pieces by means of the generic memory manager code.
-*/
+ */
 
 #include <unistd.h>
 #include <sys/mman.h>
-#include "pipe/p_thread.h"
 #include "util/u_mm.h"
 
 #define EXEC_HEAP_SIZE (10*1024*1024)
 
-pipe_static_mutex(exec_mutex);
+static mtx_t exec_mutex = _MTX_INITIALIZER_NP;
 
 static struct mem_block *exec_heap = NULL;
 static unsigned char *exec_mem = NULL;
 
 
-static void
+static int
 init_heap(void)
 {
    if (!exec_heap)
-      exec_heap = mmInit( 0, EXEC_HEAP_SIZE );
+      exec_heap = u_mmInit( 0, EXEC_HEAP_SIZE );
    
    if (!exec_mem)
       exec_mem = (unsigned char *) mmap(0, EXEC_HEAP_SIZE, 
                                        PROT_EXEC | PROT_READ | PROT_WRITE, 
                                        MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+   return (exec_mem != MAP_FAILED);
 }
 
 
@@ -77,9 +90,10 @@ rtasm_exec_malloc(size_t size)
    struct mem_block *block = NULL;
    void *addr = NULL;
 
-   pipe_mutex_lock(exec_mutex);
+   mtx_lock(&exec_mutex);
 
-   init_heap();
+   if (!init_heap())
+      goto bail;
 
    if (exec_heap) {
       size = (size + 31) & ~31;  /* next multiple of 32 bytes */
@@ -90,8 +104,9 @@ rtasm_exec_malloc(size_t size)
       addr = exec_mem + block->ofs;
    else 
       debug_printf("rtasm_exec_malloc failed\n");
-   
-   pipe_mutex_unlock(exec_mutex);
+
+bail:
+   mtx_unlock(&exec_mutex);
    
    return addr;
 }
@@ -100,21 +115,43 @@ rtasm_exec_malloc(size_t size)
 void 
 rtasm_exec_free(void *addr)
 {
-   pipe_mutex_lock(exec_mutex);
+   mtx_lock(&exec_mutex);
 
    if (exec_heap) {
-      struct mem_block *block = mmFindBlock(exec_heap, (unsigned char *)addr - exec_mem);
+      struct mem_block *block = u_mmFindBlock(exec_heap, (unsigned char *)addr - exec_mem);
    
       if (block)
-        mmFreeMem(block);
+        u_mmFreeMem(block);
    }
 
-   pipe_mutex_unlock(exec_mutex);
+   mtx_unlock(&exec_mutex);
+}
+
+
+#elif defined(PIPE_OS_WINDOWS)
+
+
+/*
+ * Avoid Data Execution Prevention.
+ */
+
+void *
+rtasm_exec_malloc(size_t size)
+{
+   return VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
+}
+
+
+void
+rtasm_exec_free(void *addr)
+{
+   VirtualFree(addr, 0, MEM_RELEASE);
 }
 
 
 #else
 
+
 /*
  * Just use regular memory.
  */