gallium: plumb context priority through to driver

Signed-off-by: Rob Clark <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
Reviewed-by: Andres Rodriguez <[email protected]>
Reviewed-by: Wladimir J. van der Laan <[email protected]>

2 files changed, 23 insertions, 0 deletions

diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index e4d0d63066d..42aff60ac4b 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -391,6 +391,15 @@ enum pipe_flush_flags
  */
 #define PIPE_CONTEXT_PREFER_THREADED   (1 << 3)
 
+/**
+ * Create a high priority context.
+ */
+#define PIPE_CONTEXT_HIGH_PRIORITY     (1 << 4)
+
+/**
+ * Create a low priority context.
+ */
+#define PIPE_CONTEXT_LOW_PRIORITY      (1 << 5)
 
 /**
  * Flags for pipe_context::memory_barrier.
@@ -785,8 +794,20 @@ enum pipe_cap
    PIPE_CAP_TILE_RASTER_ORDER,
    PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES,
    PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET,
+   PIPE_CAP_CONTEXT_PRIORITY_MASK,
 };
 
+/**
+ * Possible bits for PIPE_CAP_CONTEXT_PRIORITY_MASK param, which should
+ * return a bitmask of the supported priorities.  If the driver does not
+ * support prioritized contexts, it can return 0.
+ *
+ * Note that these match __DRI2_RENDER_HAS_CONTEXT_PRIORITY_*
+ */
+#define PIPE_CONTEXT_PRIORITY_LOW     (1 << 0)
+#define PIPE_CONTEXT_PRIORITY_MEDIUM  (1 << 1)
+#define PIPE_CONTEXT_PRIORITY_HIGH    (1 << 2)
+
 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)
 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600 (1 << 1)
 
diff --git a/src/gallium/include/state_tracker/st_api.h b/src/gallium/include/state_tracker/st_api.h
index 44d6b474f8f..f95f65f1560 100644
--- a/src/gallium/include/state_tracker/st_api.h
+++ b/src/gallium/include/state_tracker/st_api.h
@@ -92,6 +92,8 @@ enum st_api_feature
 #define ST_CONTEXT_FLAG_RESET_NOTIFICATION_ENABLED (1 << 3)
 #define ST_CONTEXT_FLAG_NO_ERROR            (1 << 4)
 #define ST_CONTEXT_FLAG_RELEASE_NONE	    (1 << 5)
+#define ST_CONTEXT_FLAG_HIGH_PRIORITY       (1 << 6)
+#define ST_CONTEXT_FLAG_LOW_PRIORITY        (1 << 7)
 
 /**
  * Reasons that context creation might fail.