- if (info->view->usage & ISL_SURF_USAGE_RENDER_TARGET_BIT) {
- /* From the Sky Lake PRM Vol. 2d,
- * RENDER_SURFACE_STATE::Shader Channel Select Red
- *
- * "For Render Target, Red, Green and Blue Shader Channel Selects
- * MUST be such that only valid components can be swapped i.e. only
- * change the order of components in the pixel. Any other values for
- * these Shader Channel Select fields are not valid for Render
- * Targets. This also means that there MUST not be multiple shader
- * channels mapped to the same RT channel."
- */
- assert(info->view->swizzle.r == ISL_CHANNEL_SELECT_RED ||
- info->view->swizzle.r == ISL_CHANNEL_SELECT_GREEN ||
- info->view->swizzle.r == ISL_CHANNEL_SELECT_BLUE);
- assert(info->view->swizzle.g == ISL_CHANNEL_SELECT_RED ||
- info->view->swizzle.g == ISL_CHANNEL_SELECT_GREEN ||
- info->view->swizzle.g == ISL_CHANNEL_SELECT_BLUE);
- assert(info->view->swizzle.b == ISL_CHANNEL_SELECT_RED ||
- info->view->swizzle.b == ISL_CHANNEL_SELECT_GREEN ||
- info->view->swizzle.b == ISL_CHANNEL_SELECT_BLUE);
- assert(info->view->swizzle.r != info->view->swizzle.g);
- assert(info->view->swizzle.r != info->view->swizzle.b);
- assert(info->view->swizzle.g != info->view->swizzle.b);
-
- /* From the Sky Lake PRM Vol. 2d,
- * RENDER_SURFACE_STATE::Shader Channel Select Alpha
- *
- * "For Render Target, this field MUST be programmed to
- * value = SCS_ALPHA."
- */
- assert(info->view->swizzle.a == ISL_CHANNEL_SELECT_ALPHA);
- }