vrend: simplify vrend_renderer_resource_get_map_info

VIRGL_RENDERER_MAP_CACHE_NONE is valid internally.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Isaac Bosompem <mrisaacb@google.com>

src/virglrenderer.c

@@ -774,7 +774,13 @@ int virgl_renderer_resource_get_map_info(uint32_t res_handle, uint32_t *map_info
    if (!res || !res->pipe_resource)
       return -EINVAL;
 
-   return vrend_renderer_resource_get_map_info(res->pipe_resource, map_info);
+   uint32_t info = vrend_renderer_resource_get_map_info(res->pipe_resource);
+   if ((info & VIRGL_RENDERER_MAP_CACHE_MASK) ==
+       VIRGL_RENDERER_MAP_CACHE_NONE)
+      return -EINVAL;
+
+   *map_info = info;
+   return 0;
 }
 
 int

src/vrend_renderer.c

@@ -10638,14 +10638,10 @@ struct pipe_resource *vrend_get_blob_pipe(struct vrend_context *ctx, uint64_t bl
    return NULL;
 }
 
-int vrend_renderer_resource_get_map_info(struct pipe_resource *pres, uint32_t *map_info)
+uint32_t vrend_renderer_resource_get_map_info(struct pipe_resource *pres)
 {
    struct vrend_resource *res = (struct vrend_resource *)pres;
-   if (!res->map_info)
-      return -EINVAL;
-
-   *map_info = res->map_info;
-   return 0;
+   return res->map_info;
 }
 
 int vrend_renderer_resource_map(struct pipe_resource *pres, void **map, uint64_t *out_size)

src/vrend_renderer.h

@@ -492,7 +492,7 @@ vrend_renderer_pipe_resource_create(struct vrend_context *ctx, uint32_t blob_id,
 
 struct pipe_resource *vrend_get_blob_pipe(struct vrend_context *ctx, uint64_t blob_id);
 
-int vrend_renderer_resource_get_map_info(struct pipe_resource *pres, uint32_t *map_info);
+uint32_t vrend_renderer_resource_get_map_info(struct pipe_resource *pres);
 
 int vrend_renderer_resource_map(struct pipe_resource *pres, void **map, uint64_t *out_size);