diff --git a/src/gallium/drivers/iris/iris_resource.c b/src/gallium/drivers/iris/iris_resource.c
index f61c8352677..632085aeb46 100644
--- a/src/gallium/drivers/iris/iris_resource.c
+++ b/src/gallium/drivers/iris/iris_resource.c
@@ -175,28 +175,6 @@ select_best_modifier(struct gen_device_info *devinfo, enum pipe_format pfmt,
    return priority_to_modifier[prio];
 }
 
-enum isl_surf_dim
-target_to_isl_surf_dim(enum pipe_texture_target target)
-{
-   switch (target) {
-   case PIPE_BUFFER:
-   case PIPE_TEXTURE_1D:
-   case PIPE_TEXTURE_1D_ARRAY:
-      return ISL_SURF_DIM_1D;
-   case PIPE_TEXTURE_2D:
-   case PIPE_TEXTURE_CUBE:
-   case PIPE_TEXTURE_RECT:
-   case PIPE_TEXTURE_2D_ARRAY:
-   case PIPE_TEXTURE_CUBE_ARRAY:
-      return ISL_SURF_DIM_2D;
-   case PIPE_TEXTURE_3D:
-      return ISL_SURF_DIM_3D;
-   case PIPE_MAX_TEXTURE_TYPES:
-      break;
-   }
-   unreachable("invalid texture type");
-}
-
 static inline bool is_modifier_external_only(enum pipe_format pfmt,
                                              uint64_t modifier)
 {
diff --git a/src/gallium/drivers/iris/iris_resource.h b/src/gallium/drivers/iris/iris_resource.h
index 4403afdbd63..caed44ab2ac 100644
--- a/src/gallium/drivers/iris/iris_resource.h
+++ b/src/gallium/drivers/iris/iris_resource.h
@@ -452,7 +452,28 @@ iris_resource_access_raw(struct iris_context *ice,
 enum isl_dim_layout iris_get_isl_dim_layout(const struct gen_device_info *devinfo,
                                             enum isl_tiling tiling,
                                             enum pipe_texture_target target);
-enum isl_surf_dim target_to_isl_surf_dim(enum pipe_texture_target target);
+static inline enum isl_surf_dim
+target_to_isl_surf_dim(enum pipe_texture_target target)
+{
+   switch (target) {
+   case PIPE_BUFFER:
+   case PIPE_TEXTURE_1D:
+   case PIPE_TEXTURE_1D_ARRAY:
+      return ISL_SURF_DIM_1D;
+   case PIPE_TEXTURE_2D:
+   case PIPE_TEXTURE_CUBE:
+   case PIPE_TEXTURE_RECT:
+   case PIPE_TEXTURE_2D_ARRAY:
+   case PIPE_TEXTURE_CUBE_ARRAY:
+      return ISL_SURF_DIM_2D;
+   case PIPE_TEXTURE_3D:
+      return ISL_SURF_DIM_3D;
+   case PIPE_MAX_TEXTURE_TYPES:
+      break;
+   }
+   unreachable("invalid texture type");
+}
+
 uint32_t iris_resource_get_tile_offsets(const struct iris_resource *res,
                                         uint32_t level, uint32_t z,
                                         uint32_t *tile_x, uint32_t *tile_y);