Move the intel vulkan driver to src/intel/vulkan

1 files changed, 758 insertions, 0 deletions

diff --git a/src/intel/vulkan/anv_wsi_x11.c b/src/intel/vulkan/anv_wsi_x11.c
new file mode 100644
index 00000000000..843a6b62504
--- /dev/null
+++ b/src/intel/vulkan/anv_wsi_x11.c
@@ -0,0 +1,758 @@
+/*
+ * Copyright © 2015 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <xcb/xcb.h>
+#include <xcb/dri3.h>
+#include <xcb/present.h>
+
+#include "anv_wsi.h"
+
+#include "util/hash_table.h"
+
+struct wsi_x11_connection {
+   bool has_dri3;
+   bool has_present;
+};
+
+struct wsi_x11 {
+   struct anv_wsi_interface base;
+
+   pthread_mutex_t                              mutex;
+   /* Hash table of xcb_connection -> wsi_x11_connection mappings */
+   struct hash_table *connections;
+};
+
+static struct wsi_x11_connection *
+wsi_x11_connection_create(struct anv_instance *instance, xcb_connection_t *conn)
+{
+   xcb_query_extension_cookie_t dri3_cookie, pres_cookie;
+   xcb_query_extension_reply_t *dri3_reply, *pres_reply;
+
+   struct wsi_x11_connection *wsi_conn =
+      anv_alloc(&instance->alloc, sizeof(*wsi_conn), 8,
+                VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
+   if (!wsi_conn)
+      return NULL;
+
+   dri3_cookie = xcb_query_extension(conn, 4, "DRI3");
+   pres_cookie = xcb_query_extension(conn, 7, "PRESENT");
+
+   dri3_reply = xcb_query_extension_reply(conn, dri3_cookie, NULL);
+   pres_reply = xcb_query_extension_reply(conn, pres_cookie, NULL);
+   if (dri3_reply == NULL || pres_reply == NULL) {
+      free(dri3_reply);
+      free(pres_reply);
+      anv_free(&instance->alloc, wsi_conn);
+      return NULL;
+   }
+
+   wsi_conn->has_dri3 = dri3_reply->present != 0;
+   wsi_conn->has_present = pres_reply->present != 0;
+
+   free(dri3_reply);
+   free(pres_reply);
+
+   return wsi_conn;
+}
+
+static void
+wsi_x11_connection_destroy(struct anv_instance *instance,
+                           struct wsi_x11_connection *conn)
+{
+   anv_free(&instance->alloc, conn);
+}
+
+static struct wsi_x11_connection *
+wsi_x11_get_connection(struct anv_instance *instance, xcb_connection_t *conn)
+{
+   struct wsi_x11 *wsi =
+      (struct wsi_x11 *)instance->wsi[VK_ICD_WSI_PLATFORM_XCB];
+
+   pthread_mutex_lock(&wsi->mutex);
+
+   struct hash_entry *entry = _mesa_hash_table_search(wsi->connections, conn);
+   if (!entry) {
+      /* We're about to make a bunch of blocking calls.  Let's drop the
+       * mutex for now so we don't block up too badly.
+       */
+      pthread_mutex_unlock(&wsi->mutex);
+
+      struct wsi_x11_connection *wsi_conn =
+         wsi_x11_connection_create(instance, conn);
+
+      pthread_mutex_lock(&wsi->mutex);
+
+      entry = _mesa_hash_table_search(wsi->connections, conn);
+      if (entry) {
+         /* Oops, someone raced us to it */
+         wsi_x11_connection_destroy(instance, wsi_conn);
+      } else {
+         entry = _mesa_hash_table_insert(wsi->connections, conn, wsi_conn);
+      }
+   }
+
+   pthread_mutex_unlock(&wsi->mutex);
+
+   return entry->data;
+}
+
+static const VkSurfaceFormatKHR formats[] = {
+   { .format = VK_FORMAT_B8G8R8A8_SRGB, },
+};
+
+static const VkPresentModeKHR present_modes[] = {
+   VK_PRESENT_MODE_MAILBOX_KHR,
+};
+
+static xcb_screen_t *
+get_screen_for_root(xcb_connection_t *conn, xcb_window_t root)
+{
+   xcb_screen_iterator_t screen_iter =
+      xcb_setup_roots_iterator(xcb_get_setup(conn));
+
+   for (; screen_iter.rem; xcb_screen_next (&screen_iter)) {
+      if (screen_iter.data->root == root)
+         return screen_iter.data;
+   }
+
+   return NULL;
+}
+
+static xcb_visualtype_t *
+screen_get_visualtype(xcb_screen_t *screen, xcb_visualid_t visual_id,
+                      unsigned *depth)
+{
+   xcb_depth_iterator_t depth_iter =
+      xcb_screen_allowed_depths_iterator(screen);
+
+   for (; depth_iter.rem; xcb_depth_next (&depth_iter)) {
+      xcb_visualtype_iterator_t visual_iter =
+         xcb_depth_visuals_iterator (depth_iter.data);
+
+      for (; visual_iter.rem; xcb_visualtype_next (&visual_iter)) {
+         if (visual_iter.data->visual_id == visual_id) {
+            if (depth)
+               *depth = depth_iter.data->depth;
+            return visual_iter.data;
+         }
+      }
+   }
+
+   return NULL;
+}
+
+static xcb_visualtype_t *
+connection_get_visualtype(xcb_connection_t *conn, xcb_visualid_t visual_id,
+                          unsigned *depth)
+{
+   xcb_screen_iterator_t screen_iter =
+      xcb_setup_roots_iterator(xcb_get_setup(conn));
+
+   /* For this we have to iterate over all of the screens which is rather
+    * annoying.  Fortunately, there is probably only 1.
+    */
+   for (; screen_iter.rem; xcb_screen_next (&screen_iter)) {
+      xcb_visualtype_t *visual = screen_get_visualtype(screen_iter.data,
+                                                       visual_id, depth);
+      if (visual)
+         return visual;
+   }
+
+   return NULL;
+}
+
+static xcb_visualtype_t *
+get_visualtype_for_window(xcb_connection_t *conn, xcb_window_t window,
+                          unsigned *depth)
+{
+   xcb_query_tree_cookie_t tree_cookie;
+   xcb_get_window_attributes_cookie_t attrib_cookie;
+   xcb_query_tree_reply_t *tree;
+   xcb_get_window_attributes_reply_t *attrib;
+
+   tree_cookie = xcb_query_tree(conn, window);
+   attrib_cookie = xcb_get_window_attributes(conn, window);
+
+   tree = xcb_query_tree_reply(conn, tree_cookie, NULL);
+   attrib = xcb_get_window_attributes_reply(conn, attrib_cookie, NULL);
+   if (attrib == NULL || tree == NULL) {
+      free(attrib);
+      free(tree);
+      return NULL;
+   }
+
+   xcb_window_t root = tree->root;
+   xcb_visualid_t visual_id = attrib->visual;
+   free(attrib);
+   free(tree);
+
+   xcb_screen_t *screen = get_screen_for_root(conn, root);
+   if (screen == NULL)
+      return NULL;
+
+   return screen_get_visualtype(screen, visual_id, depth);
+}
+
+static bool
+visual_has_alpha(xcb_visualtype_t *visual, unsigned depth)
+{
+   uint32_t rgb_mask = visual->red_mask |
+                       visual->green_mask |
+                       visual->blue_mask;
+
+   uint32_t all_mask = 0xffffffff >> (32 - depth);
+
+   /* Do we have bits left over after RGB? */
+   return (all_mask & ~rgb_mask) != 0;
+}
+
+VkBool32 anv_GetPhysicalDeviceXcbPresentationSupportKHR(
+    VkPhysicalDevice                            physicalDevice,
+    uint32_t                                    queueFamilyIndex,
+    xcb_connection_t*                           connection,
+    xcb_visualid_t                              visual_id)
+{
+   ANV_FROM_HANDLE(anv_physical_device, device, physicalDevice);
+
+   struct wsi_x11_connection *wsi_conn =
+      wsi_x11_get_connection(device->instance, connection);
+
+   if (!wsi_conn->has_dri3) {
+      fprintf(stderr, "vulkan: No DRI3 support\n");
+      return false;
+   }
+
+   unsigned visual_depth;
+   if (!connection_get_visualtype(connection, visual_id, &visual_depth))
+      return false;
+
+   if (visual_depth != 24 && visual_depth != 32)
+      return false;
+
+   return true;
+}
+
+static VkResult
+x11_surface_get_support(VkIcdSurfaceBase *icd_surface,
+                        struct anv_physical_device *device,
+                        uint32_t queueFamilyIndex,
+                        VkBool32* pSupported)
+{
+   VkIcdSurfaceXcb *surface = (VkIcdSurfaceXcb *)icd_surface;
+
+   struct wsi_x11_connection *wsi_conn =
+      wsi_x11_get_connection(device->instance, surface->connection);
+   if (!wsi_conn)
+      return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
+
+   if (!wsi_conn->has_dri3) {
+      fprintf(stderr, "vulkan: No DRI3 support\n");
+      *pSupported = false;
+      return VK_SUCCESS;
+   }
+
+   unsigned visual_depth;
+   if (!get_visualtype_for_window(surface->connection, surface->window,
+                                  &visual_depth)) {
+      *pSupported = false;
+      return VK_SUCCESS;
+   }
+
+   if (visual_depth != 24 && visual_depth != 32) {
+      *pSupported = false;
+      return VK_SUCCESS;
+   }
+
+   *pSupported = true;
+   return VK_SUCCESS;
+}
+
+static VkResult
+x11_surface_get_capabilities(VkIcdSurfaceBase *icd_surface,
+                             struct anv_physical_device *device,
+                             VkSurfaceCapabilitiesKHR *caps)
+{
+   VkIcdSurfaceXcb *surface = (VkIcdSurfaceXcb *)icd_surface;
+   xcb_get_geometry_cookie_t geom_cookie;
+   xcb_generic_error_t *err;
+   xcb_get_geometry_reply_t *geom;
+   unsigned visual_depth;
+
+   geom_cookie = xcb_get_geometry(surface->connection, surface->window);
+
+   /* This does a round-trip.  This is why we do get_geometry first and
+    * wait to read the reply until after we have a visual.
+    */
+   xcb_visualtype_t *visual =
+      get_visualtype_for_window(surface->connection, surface->window,
+                                &visual_depth);
+
+   geom = xcb_get_geometry_reply(surface->connection, geom_cookie, &err);
+   if (geom) {
+      VkExtent2D extent = { geom->width, geom->height };
+      caps->currentExtent = extent;
+      caps->minImageExtent = extent;
+      caps->maxImageExtent = extent;
+   } else {
+      /* This can happen if the client didn't wait for the configure event
+       * to come back from the compositor.  In that case, we don't know the
+       * size of the window so we just return valid "I don't know" stuff.
+       */
+      caps->currentExtent = (VkExtent2D) { -1, -1 };
+      caps->minImageExtent = (VkExtent2D) { 1, 1 };
+      caps->maxImageExtent = (VkExtent2D) { INT16_MAX, INT16_MAX };
+   }
+   free(err);
+   free(geom);
+
+   if (visual_has_alpha(visual, visual_depth)) {
+      caps->supportedCompositeAlpha = VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR |
+                                      VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
+   } else {
+      caps->supportedCompositeAlpha = VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR |
+                                      VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
+   }
+
+   caps->minImageCount = 2;
+   caps->maxImageCount = 4;
+   caps->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
+   caps->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
+   caps->maxImageArrayLayers = 1;
+   caps->supportedUsageFlags =
+      VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
+      VK_IMAGE_USAGE_SAMPLED_BIT |
+      VK_IMAGE_USAGE_TRANSFER_DST_BIT |
+      VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
+
+   return VK_SUCCESS;
+}
+
+static VkResult
+x11_surface_get_formats(VkIcdSurfaceBase *surface,
+                        struct anv_physical_device *device,
+                        uint32_t *pSurfaceFormatCount,
+                        VkSurfaceFormatKHR *pSurfaceFormats)
+{
+   if (pSurfaceFormats == NULL) {
+      *pSurfaceFormatCount = ARRAY_SIZE(formats);
+      return VK_SUCCESS;
+   }
+
+   assert(*pSurfaceFormatCount >= ARRAY_SIZE(formats));
+   typed_memcpy(pSurfaceFormats, formats, *pSurfaceFormatCount);
+   *pSurfaceFormatCount = ARRAY_SIZE(formats);
+
+   return VK_SUCCESS;
+}
+
+static VkResult
+x11_surface_get_present_modes(VkIcdSurfaceBase *surface,
+                              struct anv_physical_device *device,
+                              uint32_t *pPresentModeCount,
+                              VkPresentModeKHR *pPresentModes)
+{
+   if (pPresentModes == NULL) {
+      *pPresentModeCount = ARRAY_SIZE(present_modes);
+      return VK_SUCCESS;
+   }
+
+   assert(*pPresentModeCount >= ARRAY_SIZE(present_modes));
+   typed_memcpy(pPresentModes, present_modes, *pPresentModeCount);
+   *pPresentModeCount = ARRAY_SIZE(present_modes);
+
+   return VK_SUCCESS;
+}
+
+static VkResult
+x11_surface_create_swapchain(VkIcdSurfaceBase *surface,
+                             struct anv_device *device,
+                             const VkSwapchainCreateInfoKHR* pCreateInfo,
+                             const VkAllocationCallbacks* pAllocator,
+                             struct anv_swapchain **swapchain);
+
+VkResult anv_CreateXcbSurfaceKHR(
+    VkInstance                                  _instance,
+    const VkXcbSurfaceCreateInfoKHR*            pCreateInfo,
+    const VkAllocationCallbacks*                pAllocator,
+    VkSurfaceKHR*                               pSurface)
+{
+   ANV_FROM_HANDLE(anv_instance, instance, _instance);
+
+   assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR);
+
+   VkIcdSurfaceXcb *surface;
+
+   surface = anv_alloc2(&instance->alloc, pAllocator, sizeof *surface, 8,
+                        VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
+   if (surface == NULL)
+      return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
+
+   surface->base.platform = VK_ICD_WSI_PLATFORM_XCB;
+   surface->connection = pCreateInfo->connection;
+   surface->window = pCreateInfo->window;
+
+   *pSurface = _VkIcdSurfaceBase_to_handle(&surface->base);
+
+   return VK_SUCCESS;
+}
+
+struct x11_image {
+   struct anv_image *                        image;
+   struct anv_device_memory *                memory;
+   xcb_pixmap_t                              pixmap;
+   xcb_get_geometry_cookie_t                 geom_cookie;
+   bool                                      busy;
+};
+
+struct x11_swapchain {
+   struct anv_swapchain                        base;
+
+   xcb_connection_t *                           conn;
+   xcb_window_t                                 window;
+   xcb_gc_t                                     gc;
+   VkExtent2D                                   extent;
+   uint32_t                                     image_count;
+   uint32_t                                     next_image;
+   struct x11_image                             images[0];
+};
+
+static VkResult
+x11_get_images(struct anv_swapchain *anv_chain,
+               uint32_t* pCount, VkImage *pSwapchainImages)
+{
+   struct x11_swapchain *chain = (struct x11_swapchain *)anv_chain;
+
+   if (pSwapchainImages == NULL) {
+      *pCount = chain->image_count;
+      return VK_SUCCESS;
+   }
+
+   assert(chain->image_count <= *pCount);
+   for (uint32_t i = 0; i < chain->image_count; i++)
+      pSwapchainImages[i] = anv_image_to_handle(chain->images[i].image);
+
+   *pCount = chain->image_count;
+
+   return VK_SUCCESS;
+}
+
+static VkResult
+x11_acquire_next_image(struct anv_swapchain *anv_chain,
+                       uint64_t timeout,
+                       VkSemaphore semaphore,
+                       uint32_t *image_index)
+{
+   struct x11_swapchain *chain = (struct x11_swapchain *)anv_chain;
+   struct x11_image *image = &chain->images[chain->next_image];
+
+   if (image->busy) {
+      xcb_generic_error_t *err;
+      xcb_get_geometry_reply_t *geom =
+         xcb_get_geometry_reply(chain->conn, image->geom_cookie, &err);
+      if (!geom) {
+         free(err);
+         return vk_error(VK_ERROR_OUT_OF_DATE_KHR);
+      }
+
+      if (geom->width != chain->extent.width ||
+          geom->height != chain->extent.height) {
+         free(geom);
+         return vk_error(VK_ERROR_OUT_OF_DATE_KHR);
+      }
+      free(geom);
+
+      image->busy = false;
+   }
+
+   *image_index = chain->next_image;
+   chain->next_image = (chain->next_image + 1) % chain->image_count;
+   return VK_SUCCESS;
+}
+
+static VkResult
+x11_queue_present(struct anv_swapchain *anv_chain,
+                  struct anv_queue *queue,
+                  uint32_t image_index)
+{
+   struct x11_swapchain *chain = (struct x11_swapchain *)anv_chain;
+   struct x11_image *image = &chain->images[image_index];
+
+   assert(image_index < chain->image_count);
+
+   xcb_void_cookie_t cookie;
+
+   cookie = xcb_copy_area(chain->conn,
+                          image->pixmap,
+                          chain->window,
+                          chain->gc,
+                          0, 0,
+                          0, 0,
+                          chain->extent.width,
+                          chain->extent.height);
+   xcb_discard_reply(chain->conn, cookie.sequence);
+
+   image->geom_cookie = xcb_get_geometry(chain->conn, chain->window);
+   image->busy = true;
+
+   xcb_flush(chain->conn);
+
+   return VK_SUCCESS;
+}
+
+static VkResult
+x11_swapchain_destroy(struct anv_swapchain *anv_chain,
+                      const VkAllocationCallbacks *pAllocator)
+{
+   struct x11_swapchain *chain = (struct x11_swapchain *)anv_chain;
+   xcb_void_cookie_t cookie;
+
+   for (uint32_t i = 0; i < chain->image_count; i++) {
+      struct x11_image *image = &chain->images[i];
+
+      if (image->busy)
+         xcb_discard_reply(chain->conn, image->geom_cookie.sequence);
+
+      cookie = xcb_free_pixmap(chain->conn, image->pixmap);
+      xcb_discard_reply(chain->conn, cookie.sequence);
+
+      /* TODO: Delete images and free memory */
+   }
+
+   anv_free2(&chain->base.device->alloc, pAllocator, chain);
+
+   return VK_SUCCESS;
+}
+
+static VkResult
+x11_surface_create_swapchain(VkIcdSurfaceBase *icd_surface,
+                             struct anv_device *device,
+                             const VkSwapchainCreateInfoKHR *pCreateInfo,
+                             const VkAllocationCallbacks* pAllocator,
+                             struct anv_swapchain **swapchain_out)
+{
+   VkIcdSurfaceXcb *surface = (VkIcdSurfaceXcb *)icd_surface;
+   struct x11_swapchain *chain;
+   xcb_void_cookie_t cookie;
+   VkResult result;
+
+   int num_images = pCreateInfo->minImageCount;
+
+   assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
+
+   size_t size = sizeof(*chain) + num_images * sizeof(chain->images[0]);
+   chain = anv_alloc2(&device->alloc, pAllocator, size, 8,
+                      VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
+   if (chain == NULL)
+      return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
+
+   chain->base.device = device;
+   chain->base.destroy = x11_swapchain_destroy;
+   chain->base.get_images = x11_get_images;
+   chain->base.acquire_next_image = x11_acquire_next_image;
+   chain->base.queue_present = x11_queue_present;
+
+   chain->conn = surface->connection;
+   chain->window = surface->window;
+   chain->extent = pCreateInfo->imageExtent;
+   chain->image_count = num_images;
+   chain->next_image = 0;
+
+   for (uint32_t i = 0; i < chain->image_count; i++) {
+      VkDeviceMemory memory_h;
+      VkImage image_h;
+      struct anv_image *image;
+      struct anv_surface *surface;
+      struct anv_device_memory *memory;
+
+      anv_image_create(anv_device_to_handle(device),
+         &(struct anv_image_create_info) {
+            .isl_tiling_flags = ISL_TILING_X_BIT,
+            .stride = 0,
+            .vk_info =
+         &(VkImageCreateInfo) {
+            .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
+            .imageType = VK_IMAGE_TYPE_2D,
+            .format = pCreateInfo->imageFormat,
+            .extent = {
+               .width = pCreateInfo->imageExtent.width,
+               .height = pCreateInfo->imageExtent.height,
+               .depth = 1
+            },
+            .mipLevels = 1,
+            .arrayLayers = 1,
+            .samples = 1,
+            /* FIXME: Need a way to use X tiling to allow scanout */
+            .tiling = VK_IMAGE_TILING_OPTIMAL,
+            .usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
+            .flags = 0,
+         }},
+         NULL,
+         &image_h);
+
+      image = anv_image_from_handle(image_h);
+      assert(anv_format_is_color(image->format));
+
+      surface = &image->color_surface;
+
+      anv_AllocateMemory(anv_device_to_handle(device),
+         &(VkMemoryAllocateInfo) {
+            .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
+            .allocationSize = image->size,
+            .memoryTypeIndex = 0,
+         },
+         NULL /* XXX: pAllocator */,
+         &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);
+
+      int ret = anv_gem_set_tiling(device, memory->bo.gem_handle,
+                                   surface->isl.row_pitch, I915_TILING_X);
+      if (ret) {
+         /* FINISHME: Choose a better error. */
+         result = vk_errorf(VK_ERROR_OUT_OF_DEVICE_MEMORY,
+                            "set_tiling failed: %m");
+         goto fail;
+      }
+
+      int fd = anv_gem_handle_to_fd(device, memory->bo.gem_handle);
+      if (fd == -1) {
+         /* FINISHME: Choose a better error. */
+         result = vk_errorf(VK_ERROR_OUT_OF_DEVICE_MEMORY,
+                            "handle_to_fd failed: %m");
+         goto fail;
+      }
+
+      uint32_t bpp = 32;
+      uint32_t depth = 24;
+      xcb_pixmap_t pixmap = xcb_generate_id(chain->conn);
+
+      cookie =
+         xcb_dri3_pixmap_from_buffer_checked(chain->conn,
+                                             pixmap,
+                                             chain->window,
+                                             image->size,
+                                             pCreateInfo->imageExtent.width,
+                                             pCreateInfo->imageExtent.height,
+                                             surface->isl.row_pitch,
+                                             depth, bpp, fd);
+
+      chain->images[i].image = image;
+      chain->images[i].memory = memory;
+      chain->images[i].pixmap = pixmap;
+      chain->images[i].busy = false;
+
+      xcb_discard_reply(chain->conn, cookie.sequence);
+   }
+
+   chain->gc = xcb_generate_id(chain->conn);
+   if (!chain->gc) {
+      /* FINISHME: Choose a better error. */
+      result = vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
+      goto fail;
+   }
+
+   cookie = xcb_create_gc(chain->conn,
+                          chain->gc,
+                          chain->window,
+                          XCB_GC_GRAPHICS_EXPOSURES,
+                          (uint32_t []) { 0 });
+   xcb_discard_reply(chain->conn, cookie.sequence);
+
+   *swapchain_out = &chain->base;
+
+   return VK_SUCCESS;
+
+ fail:
+   return result;
+}
+
+VkResult
+anv_x11_init_wsi(struct anv_instance *instance)
+{
+   struct wsi_x11 *wsi;
+   VkResult result;
+
+   wsi = anv_alloc(&instance->alloc, sizeof(*wsi), 8,
+                   VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
+   if (!wsi) {
+      result = vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
+      goto fail;
+   }
+
+   int ret = pthread_mutex_init(&wsi->mutex, NULL);
+   if (ret != 0) {
+      if (ret == ENOMEM) {
+         result = vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
+      } else {
+         /* FINISHME: Choose a better error. */
+         result = vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
+      }
+
+      goto fail_alloc;
+   }
+
+   wsi->connections = _mesa_hash_table_create(NULL, _mesa_hash_pointer,
+                                              _mesa_key_pointer_equal);
+   if (!wsi->connections) {
+      result = vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
+      goto fail_mutex;
+   }
+
+   wsi->base.get_support = x11_surface_get_support;
+   wsi->base.get_capabilities = x11_surface_get_capabilities;
+   wsi->base.get_formats = x11_surface_get_formats;
+   wsi->base.get_present_modes = x11_surface_get_present_modes;
+   wsi->base.create_swapchain = x11_surface_create_swapchain;
+
+   instance->wsi[VK_ICD_WSI_PLATFORM_XCB] = &wsi->base;
+
+   return VK_SUCCESS;
+
+fail_mutex:
+   pthread_mutex_destroy(&wsi->mutex);
+fail_alloc:
+   anv_free(&instance->alloc, wsi);
+fail:
+   instance->wsi[VK_ICD_WSI_PLATFORM_XCB] = NULL;
+
+   return result;
+}
+
+void
+anv_x11_finish_wsi(struct anv_instance *instance)
+{
+   struct wsi_x11 *wsi =
+      (struct wsi_x11 *)instance->wsi[VK_ICD_WSI_PLATFORM_XCB];
+
+   if (wsi) {
+      _mesa_hash_table_destroy(wsi->connections, NULL);
+
+      pthread_mutex_destroy(&wsi->mutex);
+
+      anv_free(&instance->alloc, wsi);
+   }
+}