panfrost: Extend pan_fb_info to allow passing a tile enable map

We will use this tile enable map to implement KHR_partial_update and
replace the current solution where the preload process is done by
inverting damage regions, merging the resulting inverted regions and
issuing preloading draws for those rectangles.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10033>

src/panfrost/lib/pan_cs.c

@@ -933,5 +933,10 @@ pan_emit_fragment_job(const struct panfrost_device *dev,
                 payload.bound_max_x = fb->extent.maxx >> MALI_TILE_SHIFT;
                 payload.bound_max_y = fb->extent.maxy >> MALI_TILE_SHIFT;
                 payload.framebuffer = fbd;
+                if (fb->tile_map.base) {
+                        payload.has_tile_enable_map = true;
+                        payload.tile_enable_map = fb->tile_map.base;
+                        payload.tile_enable_map_row_stride = fb->tile_map.stride;
+                }
         }
 }

src/panfrost/lib/pan_cs.h

@@ -102,6 +102,11 @@ struct pan_fb_info {
         unsigned rt_count;
         struct pan_fb_color_attachment rts[8];
         struct pan_fb_zs_attachment zs;
+
+        struct {
+                unsigned stride;
+                mali_ptr base;
+        } tile_map;
 };
 
 unsigned