anv: Set correct write domain on window system BOs

We need to make sure GEM understands that we're writing to the BO, in
case it needs to synchronize with other rings (blitter use in display
server, for example).

src/vulkan/anv_batch_chain.c

@@ -147,6 +147,9 @@ anv_reloc_list_add(struct anv_reloc_list *list,
    struct drm_i915_gem_relocation_entry *entry;
    int index;
 
+   const uint32_t domain =
+      target_bo->is_winsys_bo ? I915_GEM_DOMAIN_RENDER : 0;
+
    anv_reloc_list_grow(list, alloc, 1);
    /* TODO: Handle failure */
 
@@ -158,8 +161,8 @@ anv_reloc_list_add(struct anv_reloc_list *list,
    entry->delta = delta;
    entry->offset = offset;
    entry->presumed_offset = target_bo->offset;
-   entry->read_domains = 0;
-   entry->write_domain = 0;
+   entry->read_domains = domain;
+   entry->write_domain = domain;
    VG(VALGRIND_CHECK_MEM_IS_DEFINED(entry, sizeof(*entry)));
 
    return target_bo->offset + delta;
@@ -854,7 +857,7 @@ anv_cmd_buffer_add_bo(struct anv_cmd_buffer *cmd_buffer,
       obj->relocs_ptr = 0;
       obj->alignment = 0;
       obj->offset = bo->offset;
-      obj->flags = 0;
+      obj->flags = bo->is_winsys_bo ? EXEC_OBJECT_WRITE : 0;
       obj->rsvd1 = 0;
       obj->rsvd2 = 0;
    }

src/vulkan/anv_device.c

@@ -1070,6 +1070,7 @@ anv_bo_init_new(struct anv_bo *bo, struct anv_device *device, uint64_t size)
    bo->index = 0;
    bo->offset = 0;
    bo->size = size;
+   bo->is_winsys_bo = false;
 
    return VK_SUCCESS;
 }

src/vulkan/anv_private.h

@@ -297,6 +297,12 @@ struct anv_bo {
 
    uint64_t size;
    void *map;
+
+   /* We need to set the WRITE flag on winsys bos so GEM will know we're
+    * writing to them and synchronize uses on other rings (eg if the display
+    * server uses the blitter ring).
+    */
+   bool is_winsys_bo;
 };
 
 /* Represents a lock-free linked list of "free" things.  This is used by

src/vulkan/anv_wsi_wayland.c

@@ -656,6 +656,7 @@ wsi_wl_image_init(struct wsi_wl_swapchain *chain, struct wsi_wl_image *image,
       goto fail_image;
 
    image->memory = anv_device_memory_from_handle(vk_memory);
+   image->memory->bo.is_winsys_bo = true;
 
    result = anv_BindImageMemory(vk_device, vk_image, vk_memory, 0);
 

src/vulkan/anv_wsi_x11.c

@@ -624,6 +624,7 @@ x11_surface_create_swapchain(VkIcdSurfaceBase *icd_surface,
          &memory_h);
 
       memory = anv_device_memory_from_handle(memory_h);
+      memory->bo.is_winsys_bo = true;
 
       anv_BindImageMemory(VK_NULL_HANDLE, anv_image_to_handle(image),
                           memory_h, 0);