2 files changed, 22 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/os/os_time.c b/src/gallium/auxiliary/os/os_time.c
index 3e9d50a598a..40551252b25 100644
--- a/src/gallium/auxiliary/os/os_time.c
+++ b/src/gallium/auxiliary/os/os_time.c
@@ -36,6 +36,7 @@
 #include "pipe/p_config.h"
 
 #if defined(PIPE_OS_UNIX)
+#  include <time.h> /* timeval */
 #  include <sys/time.h> /* timeval */
 #elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
 #  include <windows.h>
@@ -68,6 +69,20 @@ os_time_get(void)
 }
 
 
+uint64_t
+os_time_get_nano(void)
+{
+#if defined(PIPE_OS_UNIX)
+   struct timespec tv;
+   clock_gettime(CLOCK_REALTIME, &tv);
+   return tv.tv_nsec + tv.tv_sec * 1000000000LL;
+
+#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
+   return os_time_get() * 1000;
+#endif
+}
+
+
 #if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
 
 void
diff --git a/src/gallium/auxiliary/os/os_time.h b/src/gallium/auxiliary/os/os_time.h
index 7e0f67a76b0..54101a1f546 100644
--- a/src/gallium/auxiliary/os/os_time.h
+++ b/src/gallium/auxiliary/os/os_time.h
@@ -58,6 +58,13 @@ os_time_get(void);
 
 
 /*
+ * Get the current time in nanoseconds from an unknown base.
+ */
+uint64_t
+os_time_get_nano(void);
+
+
+/*
  * Sleep.
  */
 #if defined(PIPE_OS_UNIX)