android: use __mmap2 for winsys/r600

1 files changed, 19 insertions, 0 deletions

diff --git a/src/gallium/winsys/r600/drm/radeon_bo.c b/src/gallium/winsys/r600/drm/radeon_bo.c
index 3643ddbcb9..ba02a3c2bd 100644
--- a/src/gallium/winsys/r600/drm/radeon_bo.c
+++ b/src/gallium/winsys/r600/drm/radeon_bo.c
@@ -33,6 +33,25 @@
 #include "xf86drm.h"
 #include "radeon_drm.h"
 
+#ifdef ANDROID
+
+extern void*  __mmap2(void*, size_t, int, int, int, size_t);
+
+#define  MMAP2_SHIFT  12
+static void* android_mmap2(void *addr, size_t size, int prot, int flags, int fd, unsigned long long offset)
+{
+   if ( offset & ((1UL << MMAP2_SHIFT)-1) ) {
+      errno = EINVAL;
+      return MAP_FAILED;
+   }
+
+   return __mmap2(addr, size, prot, flags, fd, (size_t)(offset >> MMAP2_SHIFT));
+}
+
+#define mmap(addr, size, prot, flags, fd, offset) android_mmap2(addr, size, prot, flags, fd, offset)
+
+#endif /* ANDROID */
+
 static int radeon_bo_fixed_map(struct radeon *radeon, struct radeon_bo *bo)
 {
 	struct drm_radeon_gem_mmap args;