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-rw-r--r--src/intel/isl/isl.h3
-rw-r--r--src/intel/isl/isl_surface_state.c28
2 files changed, 31 insertions, 0 deletions
diff --git a/src/intel/isl/isl.h b/src/intel/isl/isl.h
index b2ce6f59cc5..19673f899d9 100644
--- a/src/intel/isl/isl.h
+++ b/src/intel/isl/isl.h
@@ -917,6 +917,9 @@ struct isl_surf_fill_state_info {
* Valid values depend on hardware generation.
*/
union isl_color_value clear_color;
+
+ /* Intra-tile offset */
+ uint16_t x_offset_sa, y_offset_sa;
};
struct isl_buffer_fill_state_info {
diff --git a/src/intel/isl/isl_surface_state.c b/src/intel/isl/isl_surface_state.c
index dcec800b640..d1c8f17815a 100644
--- a/src/intel/isl/isl_surface_state.c
+++ b/src/intel/isl/isl_surface_state.c
@@ -402,6 +402,34 @@ isl_genX(surf_fill_state_s)(const struct isl_device *dev, void *state,
s.MOCS = info->mocs;
#endif
+#if GEN_GEN > 4 || GEN_IS_G4X
+ if (info->x_offset_sa != 0 || info->y_offset_sa != 0) {
+ /* There are fairly strict rules about when the offsets can be used.
+ * These are mostly taken from the Sky Lake PRM documentation for
+ * RENDER_SURFACE_STATE.
+ */
+ assert(info->surf->tiling != ISL_TILING_LINEAR);
+ assert(info->surf->dim == ISL_SURF_DIM_2D);
+ assert(isl_is_pow2(isl_format_get_layout(info->view->format)->bpb));
+ assert(info->surf->levels == 1);
+ assert(info->surf->logical_level0_px.array_len == 1);
+ assert(info->aux_usage == ISL_AUX_USAGE_NONE);
+#if GEN_GEN >= 7
+ s.SurfaceArray = false;
+#endif
+ }
+
+ const unsigned x_div = 4;
+ const unsigned y_div = GEN_GEN >= 8 ? 4 : 2;
+ assert(info->x_offset_sa % x_div == 0);
+ assert(info->y_offset_sa % y_div == 0);
+ s.XOffset = info->x_offset_sa / x_div;
+ s.YOffset = info->y_offset_sa / y_div;
+#else
+ assert(info->x_offset_sa == 0);
+ assert(info->y_offset_sa == 0);
+#endif
+
#if GEN_GEN >= 7
if (info->aux_surf && info->aux_usage != ISL_AUX_USAGE_NONE) {
struct isl_tile_info tile_info;