gallium: introduce device/driver UUID queries

v2: remove unnecessary returns
v3 (Timothy Arceri): updated trace
v4 (Timothy Arceri): actually dump the params in trace

Signed-off-by: Andres Rodriguez <[email protected]>
Reviewed-by: Marek Olšák <[email protected]> (v2)
Reviewed-by: Samuel Pitoiset <[email protected]>

2 files changed, 14 insertions, 0 deletions

diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 321b677ade7..8609aefb986 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -1064,6 +1064,7 @@ enum pipe_debug_type
    PIPE_DEBUG_TYPE_CONFORMANCE,
 };
 
+#define PIPE_UUID_SIZE 16
 
 #ifdef __cplusplus
 }
diff --git a/src/gallium/include/pipe/p_screen.h b/src/gallium/include/pipe/p_screen.h
index 462b683cd75..8c6028a0fca 100644
--- a/src/gallium/include/pipe/p_screen.h
+++ b/src/gallium/include/pipe/p_screen.h
@@ -394,6 +394,19 @@ struct pipe_screen {
                                                   struct pipe_memory_object *memobj,
                                                   uint64_t offset);
 
+   /**
+    * Fill @uuid with a unique driver identifier
+    *
+    * \param uuid    pointer to a memory region of PIPE_UUID_SIZE bytes
+    */
+   void (*get_driver_uuid)(struct pipe_screen *screen, char *uuid);
+
+   /**
+    * Fill @uuid with a unique device identifier
+    *
+    * \param uuid    pointer to a memory region of PIPE_UUID_SIZE bytes
+    */
+   void (*get_device_uuid)(struct pipe_screen *screen, char *uuid);
 };