mesa/src/freedreno/vulkan/tu_device.c

/*
 * Copyright © 2016 Red Hat.
 * Copyright © 2016 Bas Nieuwenhuizen
 *
 * based in part on anv driver which is:
 * 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 "tu_private.h"
#include "util/debug.h"
#include "util/disk_cache.h"
#include "util/strtod.h"
#include "vk_format.h"
#include "vk_util.h"
#include <fcntl.h>
#include <stdbool.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/sysinfo.h>
#include <unistd.h>
#include <xf86drm.h>
#include <msm_drm.h>

static int
tu_device_get_cache_uuid(uint16_t family, void *uuid)
{
   uint32_t mesa_timestamp;
   uint16_t f = family;
   memset(uuid, 0, VK_UUID_SIZE);
   if (!disk_cache_get_function_timestamp(tu_device_get_cache_uuid,
                                          &mesa_timestamp))
      return -1;

   memcpy(uuid, &mesa_timestamp, 4);
   memcpy((char *)uuid + 4, &f, 2);
   snprintf((char *)uuid + 6, VK_UUID_SIZE - 10, "tu");
   return 0;
}

static void
tu_get_driver_uuid(void *uuid)
{
   memset(uuid, 0, VK_UUID_SIZE);
}

static void
tu_get_device_uuid(void *uuid)
{
   tu_use_args(uuid);
   tu_stub();
}

VkResult
tu_bo_init_new(struct tu_device *dev, struct tu_bo *bo, uint64_t size)
{
   /* TODO: Choose better flags. As of 2018-11-12, freedreno/drm/msm_bo.c
    * always sets `flags = MSM_BO_WC`, and we copy that behavior here.
    */
   uint32_t gem_handle = tu_gem_new(dev, size, MSM_BO_WC);
   if (!gem_handle)
      goto fail_new;

   /* Calling DRM_MSM_GEM_INFO forces the kernel to allocate backing pages. We
    * want immediate backing pages because vkAllocateMemory and friends must
    * not lazily fail.
    *
    * TODO(chadv): Must we really call DRM_MSM_GEM_INFO to acquire backing
    * pages? I infer so from reading comments in msm_bo.c:bo_allocate(), but
    * maybe I misunderstand.
    */

   /* TODO: Do we need 'offset' if we have 'iova'? */
   uint64_t offset = tu_gem_info_offset(dev, bo->gem_handle);
   if (!offset)
      goto fail_info;

   uint64_t iova = tu_gem_info_iova(dev, bo->gem_handle);
   if (!iova)
      goto fail_info;

   *bo = (struct tu_bo) {
      .gem_handle = gem_handle,
      .size = size,
      .offset = offset,
      .iova = iova,
   };

   return VK_SUCCESS;

fail_info:
      tu_gem_close(dev, bo->gem_handle);
fail_new:
      return vk_error(dev->instance, VK_ERROR_OUT_OF_DEVICE_MEMORY);
}

VkResult
tu_bo_map(struct tu_device *dev, struct tu_bo *bo)
{
   if (bo->map)
      return VK_SUCCESS;

   /* TODO: Should we use the wrapper os_mmap() like Freedreno does? */
   void *map = mmap(0, bo->size, PROT_READ | PROT_WRITE, MAP_SHARED,
                    dev->physical_device->local_fd, bo->offset);
   if (map == MAP_FAILED)
      return vk_error(dev->instance, VK_ERROR_MEMORY_MAP_FAILED);

   return VK_SUCCESS;
}

void
tu_bo_finish(struct tu_device *dev, struct tu_bo *bo)
{
   assert(bo->gem_handle);

   if (bo->map)
      munmap(bo->map, bo->size);

   tu_gem_close(dev, bo->gem_handle);
}

static VkResult
tu_physical_device_init(struct tu_physical_device *device,
                        struct tu_instance *instance,
                        drmDevicePtr drm_device)
{
   const char *path = drm_device->nodes[DRM_NODE_RENDER];
   VkResult result = VK_SUCCESS;
   drmVersionPtr version;
   int fd;
   int master_fd = -1;
   struct fd_pipe *tmp_pipe = NULL;
   uint64_t val;

   fd = open(path, O_RDWR | O_CLOEXEC);
   if (fd < 0) {
      return vk_errorf(instance, VK_ERROR_INCOMPATIBLE_DRIVER,
                       "failed to open device %s", path);
   }

   /* Version 1.3 added MSM_INFO_IOVA. */
   const int min_version_major = 1;
   const int min_version_minor = 3;

   version = drmGetVersion(fd);
   if (!version) {
      close(fd);
      return vk_errorf(instance, VK_ERROR_INCOMPATIBLE_DRIVER,
                       "failed to query kernel driver version for device %s",
                       path);
   }

   if (strcmp(version->name, "msm")) {
      drmFreeVersion(version);
      if (master_fd != -1)
         close(master_fd);
      close(fd);
      return vk_errorf(instance, VK_ERROR_INCOMPATIBLE_DRIVER,
                       "device %s does not use the msm kernel driver", path);
   }

   if (version->version_major != 1 || version->version_minor < 3) {
      result = vk_errorf(instance, VK_ERROR_INCOMPATIBLE_DRIVER,
                         "kernel driver for device %s has version %d.%d, "
                         "but Vulkan requires version >= %d.%d",
                         path,
                         version->version_major, version->version_minor,
                         min_version_major, min_version_minor);
      drmFreeVersion(version);
      close(fd);
      return result;
   }

   drmFreeVersion(version);

   if (instance->debug_flags & TU_DEBUG_STARTUP)
      tu_logi("Found compatible device '%s'.", path);

   device->_loader_data.loaderMagic = ICD_LOADER_MAGIC;
   device->instance = instance;
   assert(strlen(path) < ARRAY_SIZE(device->path));
   strncpy(device->path, path, ARRAY_SIZE(device->path));

   if (instance->enabled_extensions.KHR_display) {
      master_fd = open(drm_device->nodes[DRM_NODE_PRIMARY], O_RDWR | O_CLOEXEC);
      if (master_fd >= 0) {
         /* TODO: free master_fd is accel is not working? */
      }
   }

   device->master_fd = master_fd;
   device->local_fd = fd;

   device->drm_device = fd_device_new_dup(fd);
   if (!device->drm_device) {
      result = vk_errorf(
        instance, VK_ERROR_INITIALIZATION_FAILED, "could not create the libdrm device");
       goto fail;
   }

   tmp_pipe = fd_pipe_new(device->drm_device, FD_PIPE_3D);
   if (!tmp_pipe) {
      result = vk_errorf(
        instance, VK_ERROR_INITIALIZATION_FAILED, "could not open the 3D pipe");
      goto fail;
   }

   if (fd_pipe_get_param(tmp_pipe, FD_GPU_ID, &val)) {
      result = vk_errorf(
        instance, VK_ERROR_INITIALIZATION_FAILED, "could not get GPU ID");
      goto fail;
   }
   device->gpu_id = val;

   if (fd_pipe_get_param(tmp_pipe, FD_GMEM_SIZE, &val)) {
      result = vk_errorf(
        instance, VK_ERROR_INITIALIZATION_FAILED, "could not get GMEM size");
      goto fail;
   }
   device->gmem_size = val;

   fd_pipe_del(tmp_pipe);
   tmp_pipe = NULL;

   memset(device->name, 0, sizeof(device->name));
   sprintf(device->name, "FD%d", device->gpu_id);

   switch(device->gpu_id) {
   case 530:
   case 630:
      break;
   default:
      result = vk_errorf(instance, VK_ERROR_INITIALIZATION_FAILED,
                         "device %s is unsupported", device->name);
      goto fail;
   }
   if (tu_device_get_cache_uuid(device->gpu_id, device->cache_uuid)) {
      result = vk_errorf(
        instance, VK_ERROR_INITIALIZATION_FAILED, "cannot generate UUID");
      goto fail;
   }

   /* The gpu id is already embedded in the uuid so we just pass "tu"
    * when creating the cache.
    */
   char buf[VK_UUID_SIZE * 2 + 1];
   disk_cache_format_hex_id(buf, device->cache_uuid, VK_UUID_SIZE * 2);
   device->disk_cache = disk_cache_create(device->name, buf, 0);

   fprintf(stderr,
           "WARNING: tu is not a conformant vulkan implementation, "
           "testing use only.\n");

   tu_get_driver_uuid(&device->device_uuid);
   tu_get_device_uuid(&device->device_uuid);

   tu_fill_device_extension_table(device, &device->supported_extensions);

   if (result != VK_SUCCESS) {
      vk_error(instance, result);
      goto fail;
   }

   return VK_SUCCESS;

fail:
   if (tmp_pipe)
      fd_pipe_del(tmp_pipe);
   if (device->drm_device)
      fd_device_del(device->drm_device);
   close(fd);
   if (master_fd != -1)
      close(master_fd);
   return result;
}

static void
tu_physical_device_finish(struct tu_physical_device *device)
{
   disk_cache_destroy(device->disk_cache);
   close(device->local_fd);
   if (device->master_fd != -1)
      close(device->master_fd);
}

static void *
default_alloc_func(void *pUserData,
                   size_t size,
                   size_t align,
                   VkSystemAllocationScope allocationScope)
{
   return malloc(size);
}

static void *
default_realloc_func(void *pUserData,
                     void *pOriginal,
                     size_t size,
                     size_t align,
                     VkSystemAllocationScope allocationScope)
{
   return realloc(pOriginal, size);
}

static void
default_free_func(void *pUserData, void *pMemory)
{
   free(pMemory);
}

static const VkAllocationCallbacks default_alloc = {
   .pUserData = NULL,
   .pfnAllocation = default_alloc_func,
   .pfnReallocation = default_realloc_func,
   .pfnFree = default_free_func,
};

static const struct debug_control tu_debug_options[] = { { "startup",
                                                            TU_DEBUG_STARTUP },
                                                          { NULL, 0 } };

const char *
tu_get_debug_option_name(int id)
{
   assert(id < ARRAY_SIZE(tu_debug_options) - 1);
   return tu_debug_options[id].string;
}

static int
tu_get_instance_extension_index(const char *name)
{
   for (unsigned i = 0; i < TU_INSTANCE_EXTENSION_COUNT; ++i) {
      if (strcmp(name, tu_instance_extensions[i].extensionName) == 0)
         return i;
   }
   return -1;
}

VkResult
tu_CreateInstance(const VkInstanceCreateInfo *pCreateInfo,
                  const VkAllocationCallbacks *pAllocator,
                  VkInstance *pInstance)
{
   struct tu_instance *instance;
   VkResult result;

   assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO);

   uint32_t client_version;
   if (pCreateInfo->pApplicationInfo &&
       pCreateInfo->pApplicationInfo->apiVersion != 0) {
      client_version = pCreateInfo->pApplicationInfo->apiVersion;
   } else {
      tu_EnumerateInstanceVersion(&client_version);
   }

   instance = vk_zalloc2(&default_alloc,
                         pAllocator,
                         sizeof(*instance),
                         8,
                         VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
   if (!instance)
      return vk_error(NULL, VK_ERROR_OUT_OF_HOST_MEMORY);

   instance->_loader_data.loaderMagic = ICD_LOADER_MAGIC;

   if (pAllocator)
      instance->alloc = *pAllocator;
   else
      instance->alloc = default_alloc;

   instance->api_version = client_version;
   instance->physical_device_count = -1;

   instance->debug_flags =
     parse_debug_string(getenv("TU_DEBUG"), tu_debug_options);

   if (instance->debug_flags & TU_DEBUG_STARTUP)
      tu_logi("Created an instance");

   for (uint32_t i = 0; i < pCreateInfo->enabledExtensionCount; i++) {
      const char *ext_name = pCreateInfo->ppEnabledExtensionNames[i];
      int index = tu_get_instance_extension_index(ext_name);

      if (index < 0 || !tu_supported_instance_extensions.extensions[index]) {
         vk_free2(&default_alloc, pAllocator, instance);
         return vk_error(instance, VK_ERROR_EXTENSION_NOT_PRESENT);
      }

      instance->enabled_extensions.extensions[index] = true;
   }

   result = vk_debug_report_instance_init(&instance->debug_report_callbacks);
   if (result != VK_SUCCESS) {
      vk_free2(&default_alloc, pAllocator, instance);
      return vk_error(instance, result);
   }

   _mesa_locale_init();

   VG(VALGRIND_CREATE_MEMPOOL(instance, 0, false));

   *pInstance = tu_instance_to_handle(instance);

   return VK_SUCCESS;
}

void
tu_DestroyInstance(VkInstance _instance,
                   const VkAllocationCallbacks *pAllocator)
{
   TU_FROM_HANDLE(tu_instance, instance, _instance);

   if (!instance)
      return;

   for (int i = 0; i < instance->physical_device_count; ++i) {
      tu_physical_device_finish(instance->physical_devices + i);
   }

   VG(VALGRIND_DESTROY_MEMPOOL(instance));

   _mesa_locale_fini();

   vk_debug_report_instance_destroy(&instance->debug_report_callbacks);

   vk_free(&instance->alloc, instance);
}

static VkResult
tu_enumerate_devices(struct tu_instance *instance)
{
   /* TODO: Check for more devices ? */
   drmDevicePtr devices[8];
   VkResult result = VK_ERROR_INCOMPATIBLE_DRIVER;
   int max_devices;

   instance->physical_device_count = 0;

   max_devices = drmGetDevices2(0, devices, ARRAY_SIZE(devices));

   if (instance->debug_flags & TU_DEBUG_STARTUP)
      tu_logi("Found %d drm nodes", max_devices);

   if (max_devices < 1)
      return vk_error(instance, VK_ERROR_INCOMPATIBLE_DRIVER);

   for (unsigned i = 0; i < (unsigned)max_devices; i++) {
      if (devices[i]->available_nodes & 1 << DRM_NODE_RENDER &&
          devices[i]->bustype == DRM_BUS_PLATFORM) {

         result = tu_physical_device_init(instance->physical_devices +
                                             instance->physical_device_count,
                                          instance,
                                          devices[i]);
         if (result == VK_SUCCESS)
            ++instance->physical_device_count;
         else if (result != VK_ERROR_INCOMPATIBLE_DRIVER)
            break;
      }
   }
   drmFreeDevices(devices, max_devices);

   return result;
}

VkResult
tu_EnumeratePhysicalDevices(VkInstance _instance,
                            uint32_t *pPhysicalDeviceCount,
                            VkPhysicalDevice *pPhysicalDevices)
{
   TU_FROM_HANDLE(tu_instance, instance, _instance);
   VK_OUTARRAY_MAKE(out, pPhysicalDevices, pPhysicalDeviceCount);

   VkResult result;

   if (instance->physical_device_count < 0) {
      result = tu_enumerate_devices(instance);
      if (result != VK_SUCCESS && result != VK_ERROR_INCOMPATIBLE_DRIVER)
         return result;
   }

   for (uint32_t i = 0; i < instance->physical_device_count; ++i) {
      vk_outarray_append(&out, p) {
         *p = tu_physical_device_to_handle(instance->physical_devices + i);
      }

   }

   return vk_outarray_status(&out);
}

VkResult
tu_EnumeratePhysicalDeviceGroups(
   VkInstance _instance,
   uint32_t *pPhysicalDeviceGroupCount,
   VkPhysicalDeviceGroupProperties *pPhysicalDeviceGroupProperties)
{
   TU_FROM_HANDLE(tu_instance, instance, _instance);
   VK_OUTARRAY_MAKE(out, pPhysicalDeviceGroupProperties, pPhysicalDeviceGroupCount);
   VkResult result;

   if (instance->physical_device_count < 0) {
      result = tu_enumerate_devices(instance);
      if (result != VK_SUCCESS && result != VK_ERROR_INCOMPATIBLE_DRIVER)
         return result;
   }

   for (uint32_t i = 0; i < instance->physical_device_count; ++i) {
      vk_outarray_append(&out, p) {
         p->physicalDeviceCount = 1;
         p->physicalDevices[0] =
           tu_physical_device_to_handle(instance->physical_devices + i);
         p->subsetAllocation = false;
      }
   }

   return vk_outarray_status(&out);
}

void
tu_GetPhysicalDeviceFeatures(VkPhysicalDevice physicalDevice,
                             VkPhysicalDeviceFeatures *pFeatures)
{
   memset(pFeatures, 0, sizeof(*pFeatures));

   *pFeatures = (VkPhysicalDeviceFeatures){
      .robustBufferAccess = false,
      .fullDrawIndexUint32 = false,
      .imageCubeArray = false,
      .independentBlend = false,
      .geometryShader = false,
      .tessellationShader = false,
      .sampleRateShading = false,
      .dualSrcBlend = false,
      .logicOp = false,
      .multiDrawIndirect = false,
      .drawIndirectFirstInstance = false,
      .depthClamp = false,
      .depthBiasClamp = false,
      .fillModeNonSolid = false,
      .depthBounds = false,
      .wideLines = false,
      .largePoints = false,
      .alphaToOne = false,
      .multiViewport = false,
      .samplerAnisotropy = false,
      .textureCompressionETC2 = false,
      .textureCompressionASTC_LDR = false,
      .textureCompressionBC = false,
      .occlusionQueryPrecise = false,
      .pipelineStatisticsQuery = false,
      .vertexPipelineStoresAndAtomics = false,
      .fragmentStoresAndAtomics = false,
      .shaderTessellationAndGeometryPointSize = false,
      .shaderImageGatherExtended = false,
      .shaderStorageImageExtendedFormats = false,
      .shaderStorageImageMultisample = false,
      .shaderUniformBufferArrayDynamicIndexing = false,
      .shaderSampledImageArrayDynamicIndexing = false,
      .shaderStorageBufferArrayDynamicIndexing = false,
      .shaderStorageImageArrayDynamicIndexing = false,
      .shaderStorageImageReadWithoutFormat = false,
      .shaderStorageImageWriteWithoutFormat = false,
      .shaderClipDistance = false,
      .shaderCullDistance = false,
      .shaderFloat64 = false,
      .shaderInt64 = false,
      .shaderInt16 = false,
      .sparseBinding = false,
      .variableMultisampleRate = false,
      .inheritedQueries = false,
   };
}

void
tu_GetPhysicalDeviceFeatures2(VkPhysicalDevice physicalDevice,
                              VkPhysicalDeviceFeatures2KHR *pFeatures)
{
   vk_foreach_struct(ext, pFeatures->pNext)
   {
      switch (ext->sType) {
         case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VARIABLE_POINTER_FEATURES_KHR: {
            VkPhysicalDeviceVariablePointerFeaturesKHR *features = (void *)ext;
            features->variablePointersStorageBuffer = false;
            features->variablePointers = false;
            break;
         }
         case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_FEATURES_KHR: {
            VkPhysicalDeviceMultiviewFeaturesKHR *features =
              (VkPhysicalDeviceMultiviewFeaturesKHR *)ext;
            features->multiview = false;
            features->multiviewGeometryShader = false;
            features->multiviewTessellationShader = false;
            break;
         }
         case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_DRAW_PARAMETER_FEATURES: {
            VkPhysicalDeviceShaderDrawParameterFeatures *features =
              (VkPhysicalDeviceShaderDrawParameterFeatures *)ext;
            features->shaderDrawParameters = false;
            break;
         }
         case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROTECTED_MEMORY_FEATURES: {
            VkPhysicalDeviceProtectedMemoryFeatures *features =
              (VkPhysicalDeviceProtectedMemoryFeatures *)ext;
            features->protectedMemory = false;
            break;
         }
         case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_16BIT_STORAGE_FEATURES: {
            VkPhysicalDevice16BitStorageFeatures *features =
              (VkPhysicalDevice16BitStorageFeatures *)ext;
            features->storageBuffer16BitAccess = false;
            features->uniformAndStorageBuffer16BitAccess = false;
            features->storagePushConstant16 = false;
            features->storageInputOutput16 = false;
            break;
         }
         case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_YCBCR_CONVERSION_FEATURES: {
            VkPhysicalDeviceSamplerYcbcrConversionFeatures *features =
              (VkPhysicalDeviceSamplerYcbcrConversionFeatures *)ext;
            features->samplerYcbcrConversion = false;
            break;
         }
         case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DESCRIPTOR_INDEXING_FEATURES_EXT: {
            VkPhysicalDeviceDescriptorIndexingFeaturesEXT *features =
              (VkPhysicalDeviceDescriptorIndexingFeaturesEXT *)ext;
            features->shaderInputAttachmentArrayDynamicIndexing = false;
            features->shaderUniformTexelBufferArrayDynamicIndexing = false;
            features->shaderStorageTexelBufferArrayDynamicIndexing = false;
            features->shaderUniformBufferArrayNonUniformIndexing = false;
            features->shaderSampledImageArrayNonUniformIndexing = false;
            features->shaderStorageBufferArrayNonUniformIndexing = false;
            features->shaderStorageImageArrayNonUniformIndexing = false;
            features->shaderInputAttachmentArrayNonUniformIndexing = false;
            features->shaderUniformTexelBufferArrayNonUniformIndexing = false;
            features->shaderStorageTexelBufferArrayNonUniformIndexing = false;
            features->descriptorBindingUniformBufferUpdateAfterBind = false;
            features->descriptorBindingSampledImageUpdateAfterBind = false;
            features->descriptorBindingStorageImageUpdateAfterBind = false;
            features->descriptorBindingStorageBufferUpdateAfterBind = false;
            features->descriptorBindingUniformTexelBufferUpdateAfterBind = false;
            features->descriptorBindingStorageTexelBufferUpdateAfterBind = false;
            features->descriptorBindingUpdateUnusedWhilePending = false;
            features->descriptorBindingPartiallyBound = false;
            features->descriptorBindingVariableDescriptorCount = false;
            features->runtimeDescriptorArray = false;
            break;
         }
         case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_CONDITIONAL_RENDERING_FEATURES_EXT: {
            VkPhysicalDeviceConditionalRenderingFeaturesEXT *features =
              (VkPhysicalDeviceConditionalRenderingFeaturesEXT *)ext;
            features->conditionalRendering = false;
            features->inheritedConditionalRendering = false;
            break;
         }
         default:
            break;
      }
   }
   return tu_GetPhysicalDeviceFeatures(physicalDevice, &pFeatures->features);
}

void
tu_GetPhysicalDeviceProperties(VkPhysicalDevice physicalDevice,
                               VkPhysicalDeviceProperties *pProperties)
{
   TU_FROM_HANDLE(tu_physical_device, pdevice, physicalDevice);
   VkSampleCountFlags sample_counts = 0xf;

   /* make sure that the entire descriptor set is addressable with a signed
    * 32-bit int. So the sum of all limits scaled by descriptor size has to
    * be at most 2 GiB. the combined image & samples object count as one of
    * both. This limit is for the pipeline layout, not for the set layout, but
    * there is no set limit, so we just set a pipeline limit. I don't think
    * any app is going to hit this soon. */
   size_t max_descriptor_set_size =
     ((1ull << 31) - 16 * MAX_DYNAMIC_BUFFERS) /
     (32 /* uniform buffer, 32 due to potential space wasted on alignment */ +
      32 /* storage buffer, 32 due to potential space wasted on alignment */ +
      32 /* sampler, largest when combined with image */ +
      64 /* sampled image */ + 64 /* storage image */);

   VkPhysicalDeviceLimits limits = {
      .maxImageDimension1D = (1 << 14),
      .maxImageDimension2D = (1 << 14),
      .maxImageDimension3D = (1 << 11),
      .maxImageDimensionCube = (1 << 14),
      .maxImageArrayLayers = (1 << 11),
      .maxTexelBufferElements = 128 * 1024 * 1024,
      .maxUniformBufferRange = UINT32_MAX,
      .maxStorageBufferRange = UINT32_MAX,
      .maxPushConstantsSize = MAX_PUSH_CONSTANTS_SIZE,
      .maxMemoryAllocationCount = UINT32_MAX,
      .maxSamplerAllocationCount = 64 * 1024,
      .bufferImageGranularity = 64,          /* A cache line */
      .sparseAddressSpaceSize = 0xffffffffu, /* buffer max size */
      .maxBoundDescriptorSets = MAX_SETS,
      .maxPerStageDescriptorSamplers = max_descriptor_set_size,
      .maxPerStageDescriptorUniformBuffers = max_descriptor_set_size,
      .maxPerStageDescriptorStorageBuffers = max_descriptor_set_size,
      .maxPerStageDescriptorSampledImages = max_descriptor_set_size,
      .maxPerStageDescriptorStorageImages = max_descriptor_set_size,
      .maxPerStageDescriptorInputAttachments = max_descriptor_set_size,
      .maxPerStageResources = max_descriptor_set_size,
      .maxDescriptorSetSamplers = max_descriptor_set_size,
      .maxDescriptorSetUniformBuffers = max_descriptor_set_size,
      .maxDescriptorSetUniformBuffersDynamic = MAX_DYNAMIC_UNIFORM_BUFFERS,
      .maxDescriptorSetStorageBuffers = max_descriptor_set_size,
      .maxDescriptorSetStorageBuffersDynamic = MAX_DYNAMIC_STORAGE_BUFFERS,
      .maxDescriptorSetSampledImages = max_descriptor_set_size,
      .maxDescriptorSetStorageImages = max_descriptor_set_size,
      .maxDescriptorSetInputAttachments = max_descriptor_set_size,
      .maxVertexInputAttributes = 32,
      .maxVertexInputBindings = 32,
      .maxVertexInputAttributeOffset = 2047,
      .maxVertexInputBindingStride = 2048,
      .maxVertexOutputComponents = 128,
      .maxTessellationGenerationLevel = 64,
      .maxTessellationPatchSize = 32,
      .maxTessellationControlPerVertexInputComponents = 128,
      .maxTessellationControlPerVertexOutputComponents = 128,
      .maxTessellationControlPerPatchOutputComponents = 120,
      .maxTessellationControlTotalOutputComponents = 4096,
      .maxTessellationEvaluationInputComponents = 128,
      .maxTessellationEvaluationOutputComponents = 128,
      .maxGeometryShaderInvocations = 127,
      .maxGeometryInputComponents = 64,
      .maxGeometryOutputComponents = 128,
      .maxGeometryOutputVertices = 256,
      .maxGeometryTotalOutputComponents = 1024,
      .maxFragmentInputComponents = 128,
      .maxFragmentOutputAttachments = 8,
      .maxFragmentDualSrcAttachments = 1,
      .maxFragmentCombinedOutputResources = 8,
      .maxComputeSharedMemorySize = 32768,
      .maxComputeWorkGroupCount = { 65535, 65535, 65535 },
      .maxComputeWorkGroupInvocations = 2048,
      .maxComputeWorkGroupSize = { 2048, 2048, 2048 },
      .subPixelPrecisionBits = 4 /* FIXME */,
      .subTexelPrecisionBits = 4 /* FIXME */,
      .mipmapPrecisionBits = 4 /* FIXME */,
      .maxDrawIndexedIndexValue = UINT32_MAX,
      .maxDrawIndirectCount = UINT32_MAX,
      .maxSamplerLodBias = 16,
      .maxSamplerAnisotropy = 16,
      .maxViewports = MAX_VIEWPORTS,
      .maxViewportDimensions = { (1 << 14), (1 << 14) },
      .viewportBoundsRange = { INT16_MIN, INT16_MAX },
      .viewportSubPixelBits = 8,
      .minMemoryMapAlignment = 4096, /* A page */
      .minTexelBufferOffsetAlignment = 1,
      .minUniformBufferOffsetAlignment = 4,
      .minStorageBufferOffsetAlignment = 4,
      .minTexelOffset = -32,
      .maxTexelOffset = 31,
      .minTexelGatherOffset = -32,
      .maxTexelGatherOffset = 31,
      .minInterpolationOffset = -2,
      .maxInterpolationOffset = 2,
      .subPixelInterpolationOffsetBits = 8,
      .maxFramebufferWidth = (1 << 14),
      .maxFramebufferHeight = (1 << 14),
      .maxFramebufferLayers = (1 << 10),
      .framebufferColorSampleCounts = sample_counts,
      .framebufferDepthSampleCounts = sample_counts,
      .framebufferStencilSampleCounts = sample_counts,
      .framebufferNoAttachmentsSampleCounts = sample_counts,
      .maxColorAttachments = MAX_RTS,
      .sampledImageColorSampleCounts = sample_counts,
      .sampledImageIntegerSampleCounts = VK_SAMPLE_COUNT_1_BIT,
      .sampledImageDepthSampleCounts = sample_counts,
      .sampledImageStencilSampleCounts = sample_counts,
      .storageImageSampleCounts = VK_SAMPLE_COUNT_1_BIT,
      .maxSampleMaskWords = 1,
      .timestampComputeAndGraphics = true,
      .timestampPeriod = 1,
      .maxClipDistances = 8,
      .maxCullDistances = 8,
      .maxCombinedClipAndCullDistances = 8,
      .discreteQueuePriorities = 1,
      .pointSizeRange = { 0.125, 255.875 },
      .lineWidthRange = { 0.0, 7.9921875 },
      .pointSizeGranularity = (1.0 / 8.0),
      .lineWidthGranularity = (1.0 / 128.0),
      .strictLines = false, /* FINISHME */
      .standardSampleLocations = true,
      .optimalBufferCopyOffsetAlignment = 128,
      .optimalBufferCopyRowPitchAlignment = 128,
      .nonCoherentAtomSize = 64,
   };

   *pProperties = (VkPhysicalDeviceProperties){
      .apiVersion = tu_physical_device_api_version(pdevice),
      .driverVersion = vk_get_driver_version(),
      .vendorID = 0, /* TODO */
      .deviceID = 0,
      .deviceType = VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU,
      .limits = limits,
      .sparseProperties = { 0 },
   };

   strcpy(pProperties->deviceName, pdevice->name);
   memcpy(pProperties->pipelineCacheUUID, pdevice->cache_uuid, VK_UUID_SIZE);
}

void
tu_GetPhysicalDeviceProperties2(VkPhysicalDevice physicalDevice,
                                VkPhysicalDeviceProperties2KHR *pProperties)
{
   TU_FROM_HANDLE(tu_physical_device, pdevice, physicalDevice);
   tu_GetPhysicalDeviceProperties(physicalDevice, &pProperties->properties);

   vk_foreach_struct(ext, pProperties->pNext)
   {
      switch (ext->sType) {
         case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PUSH_DESCRIPTOR_PROPERTIES_KHR: {
            VkPhysicalDevicePushDescriptorPropertiesKHR *properties =
              (VkPhysicalDevicePushDescriptorPropertiesKHR *)ext;
            properties->maxPushDescriptors = MAX_PUSH_DESCRIPTORS;
            break;
         }
         case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ID_PROPERTIES_KHR: {
            VkPhysicalDeviceIDPropertiesKHR *properties =
              (VkPhysicalDeviceIDPropertiesKHR *)ext;
            memcpy(properties->driverUUID, pdevice->driver_uuid, VK_UUID_SIZE);
            memcpy(properties->deviceUUID, pdevice->device_uuid, VK_UUID_SIZE);
            properties->deviceLUIDValid = false;
            break;
         }
         case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_PROPERTIES_KHR: {
            VkPhysicalDeviceMultiviewPropertiesKHR *properties =
              (VkPhysicalDeviceMultiviewPropertiesKHR *)ext;
            properties->maxMultiviewViewCount = MAX_VIEWS;
            properties->maxMultiviewInstanceIndex = INT_MAX;
            break;
         }
         case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_POINT_CLIPPING_PROPERTIES_KHR: {
            VkPhysicalDevicePointClippingPropertiesKHR *properties =
              (VkPhysicalDevicePointClippingPropertiesKHR *)ext;
            properties->pointClippingBehavior =
              VK_POINT_CLIPPING_BEHAVIOR_ALL_CLIP_PLANES_KHR;
            break;
         }
         case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MAINTENANCE_3_PROPERTIES: {
            VkPhysicalDeviceMaintenance3Properties *properties =
              (VkPhysicalDeviceMaintenance3Properties *)ext;
            /* Make sure everything is addressable by a signed 32-bit int, and
             * our largest descriptors are 96 bytes. */
            properties->maxPerSetDescriptors = (1ull << 31) / 96;
            /* Our buffer size fields allow only this much */
            properties->maxMemoryAllocationSize = 0xFFFFFFFFull;
            break;
         }
         default:
            break;
      }
   }
}

static const VkQueueFamilyProperties
tu_queue_family_properties = {
   .queueFlags = VK_QUEUE_GRAPHICS_BIT |
                 VK_QUEUE_COMPUTE_BIT |
                 VK_QUEUE_TRANSFER_BIT,
   .queueCount = 1,
   .timestampValidBits = 64,
   .minImageTransferGranularity = (VkExtent3D) { 1, 1, 1 },
};

void
tu_GetPhysicalDeviceQueueFamilyProperties(
   VkPhysicalDevice physicalDevice,
   uint32_t *pQueueFamilyPropertyCount,
   VkQueueFamilyProperties *pQueueFamilyProperties)
{
   VK_OUTARRAY_MAKE(out, pQueueFamilyProperties, pQueueFamilyPropertyCount);

   vk_outarray_append(&out, p) {
      *p = tu_queue_family_properties;
   }
}

void
tu_GetPhysicalDeviceQueueFamilyProperties2(
   VkPhysicalDevice physicalDevice,
   uint32_t *pQueueFamilyPropertyCount,
   VkQueueFamilyProperties2KHR *pQueueFamilyProperties)
{
   VK_OUTARRAY_MAKE(out, pQueueFamilyProperties, pQueueFamilyPropertyCount);

   vk_outarray_append(&out, p) {
      p->queueFamilyProperties = tu_queue_family_properties;
   }
}

static uint64_t
tu_get_system_heap_size()
{
   struct sysinfo info;
   sysinfo(&info);

   uint64_t total_ram = (uint64_t)info.totalram * (uint64_t)info.mem_unit;

   /* We don't want to burn too much ram with the GPU.  If the user has 4GiB
    * or less, we use at most half.  If they have more than 4GiB, we use 3/4.
    */
   uint64_t available_ram;
   if (total_ram <= 4ull * 1024ull * 1024ull * 1024ull)
      available_ram = total_ram / 2;
   else
      available_ram = total_ram * 3 / 4;

   return available_ram;
}

void
tu_GetPhysicalDeviceMemoryProperties(
   VkPhysicalDevice physicalDevice,
   VkPhysicalDeviceMemoryProperties *pMemoryProperties)
{
   pMemoryProperties->memoryHeapCount = 1;
   pMemoryProperties->memoryHeaps[0].size = tu_get_system_heap_size();
   pMemoryProperties->memoryHeaps[0].flags = VK_MEMORY_HEAP_DEVICE_LOCAL_BIT;

   pMemoryProperties->memoryTypeCount = 1;
   pMemoryProperties->memoryTypes[0].propertyFlags = VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT |
                                                     VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
                                                     VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
   pMemoryProperties->memoryTypes[0].heapIndex = 0;
}

void
tu_GetPhysicalDeviceMemoryProperties2(
   VkPhysicalDevice physicalDevice,
   VkPhysicalDeviceMemoryProperties2KHR *pMemoryProperties)
{
   return tu_GetPhysicalDeviceMemoryProperties(
     physicalDevice, &pMemoryProperties->memoryProperties);
}

static int
tu_queue_init(struct tu_device *device,
              struct tu_queue *queue,
              uint32_t queue_family_index,
              int idx,
              VkDeviceQueueCreateFlags flags)
{
   queue->_loader_data.loaderMagic = ICD_LOADER_MAGIC;
   queue->device = device;
   queue->queue_family_index = queue_family_index;
   queue->queue_idx = idx;
   queue->flags = flags;

   return VK_SUCCESS;
}

static void
tu_queue_finish(struct tu_queue *queue)
{
}

static int
tu_get_device_extension_index(const char *name)
{
   for (unsigned i = 0; i < TU_DEVICE_EXTENSION_COUNT; ++i) {
      if (strcmp(name, tu_device_extensions[i].extensionName) == 0)
         return i;
   }
   return -1;
}

VkResult
tu_CreateDevice(VkPhysicalDevice physicalDevice,
                const VkDeviceCreateInfo *pCreateInfo,
                const VkAllocationCallbacks *pAllocator,
                VkDevice *pDevice)
{
   TU_FROM_HANDLE(tu_physical_device, physical_device, physicalDevice);
   VkResult result;
   struct tu_device *device;

   /* Check enabled features */
   if (pCreateInfo->pEnabledFeatures) {
      VkPhysicalDeviceFeatures supported_features;
      tu_GetPhysicalDeviceFeatures(physicalDevice, &supported_features);
      VkBool32 *supported_feature = (VkBool32 *)&supported_features;
      VkBool32 *enabled_feature = (VkBool32 *)pCreateInfo->pEnabledFeatures;
      unsigned num_features =
        sizeof(VkPhysicalDeviceFeatures) / sizeof(VkBool32);
      for (uint32_t i = 0; i < num_features; i++) {
         if (enabled_feature[i] && !supported_feature[i])
            return vk_error(physical_device->instance,
                            VK_ERROR_FEATURE_NOT_PRESENT);
      }
   }

   device = vk_zalloc2(&physical_device->instance->alloc,
                       pAllocator,
                       sizeof(*device),
                       8,
                       VK_SYSTEM_ALLOCATION_SCOPE_DEVICE);
   if (!device)
      return vk_error(physical_device->instance, VK_ERROR_OUT_OF_HOST_MEMORY);

   device->_loader_data.loaderMagic = ICD_LOADER_MAGIC;
   device->instance = physical_device->instance;
   device->physical_device = physical_device;

   if (pAllocator)
      device->alloc = *pAllocator;
   else
      device->alloc = physical_device->instance->alloc;

   for (uint32_t i = 0; i < pCreateInfo->enabledExtensionCount; i++) {
      const char *ext_name = pCreateInfo->ppEnabledExtensionNames[i];
      int index = tu_get_device_extension_index(ext_name);
      if (index < 0 ||
          !physical_device->supported_extensions.extensions[index]) {
         vk_free(&device->alloc, device);
         return vk_error(physical_device->instance,
                         VK_ERROR_EXTENSION_NOT_PRESENT);
      }

      device->enabled_extensions.extensions[index] = true;
   }

   for (unsigned i = 0; i < pCreateInfo->queueCreateInfoCount; i++) {
      const VkDeviceQueueCreateInfo *queue_create =
        &pCreateInfo->pQueueCreateInfos[i];
      uint32_t qfi = queue_create->queueFamilyIndex;
      device->queues[qfi] =
        vk_alloc(&device->alloc,
                 queue_create->queueCount * sizeof(struct tu_queue),
                 8,
                 VK_SYSTEM_ALLOCATION_SCOPE_DEVICE);
      if (!device->queues[qfi]) {
         result = VK_ERROR_OUT_OF_HOST_MEMORY;
         goto fail;
      }

      memset(device->queues[qfi],
             0,
             queue_create->queueCount * sizeof(struct tu_queue));

      device->queue_count[qfi] = queue_create->queueCount;

      for (unsigned q = 0; q < queue_create->queueCount; q++) {
         result = tu_queue_init(
           device, &device->queues[qfi][q], qfi, q, queue_create->flags);
         if (result != VK_SUCCESS)
            goto fail;
      }
   }

   VkPipelineCacheCreateInfo ci;
   ci.sType = VK_STRUCTURE_TYPE_PIPELINE_CACHE_CREATE_INFO;
   ci.pNext = NULL;
   ci.flags = 0;
   ci.pInitialData = NULL;
   ci.initialDataSize = 0;
   VkPipelineCache pc;
   result =
     tu_CreatePipelineCache(tu_device_to_handle(device), &ci, NULL, &pc);
   if (result != VK_SUCCESS)
      goto fail;

   device->mem_cache = tu_pipeline_cache_from_handle(pc);

   *pDevice = tu_device_to_handle(device);
   return VK_SUCCESS;

fail:
   for (unsigned i = 0; i < TU_MAX_QUEUE_FAMILIES; i++) {
      for (unsigned q = 0; q < device->queue_count[i]; q++)
         tu_queue_finish(&device->queues[i][q]);
      if (device->queue_count[i])
         vk_free(&device->alloc, device->queues[i]);
   }

   vk_free(&device->alloc, device);
   return result;
}

void
tu_DestroyDevice(VkDevice _device, const VkAllocationCallbacks *pAllocator)
{
   TU_FROM_HANDLE(tu_device, device, _device);

   if (!device)
      return;

   for (unsigned i = 0; i < TU_MAX_QUEUE_FAMILIES; i++) {
      for (unsigned q = 0; q < device->queue_count[i]; q++)
         tu_queue_finish(&device->queues[i][q]);
      if (device->queue_count[i])
         vk_free(&device->alloc, device->queues[i]);
   }

   VkPipelineCache pc = tu_pipeline_cache_to_handle(device->mem_cache);
   tu_DestroyPipelineCache(tu_device_to_handle(device), pc, NULL);

   vk_free(&device->alloc, device);
}

VkResult
tu_EnumerateInstanceLayerProperties(uint32_t *pPropertyCount,
                                    VkLayerProperties *pProperties)
{
   *pPropertyCount = 0;
   return VK_SUCCESS;
}

VkResult
tu_EnumerateDeviceLayerProperties(VkPhysicalDevice physicalDevice,
                                  uint32_t *pPropertyCount,
                                  VkLayerProperties *pProperties)
{
   *pPropertyCount = 0;
   return VK_SUCCESS;
}

void
tu_GetDeviceQueue2(VkDevice _device,
                   const VkDeviceQueueInfo2 *pQueueInfo,
                   VkQueue *pQueue)
{
   TU_FROM_HANDLE(tu_device, device, _device);
   struct tu_queue *queue;

   queue =
     &device->queues[pQueueInfo->queueFamilyIndex][pQueueInfo->queueIndex];
   if (pQueueInfo->flags != queue->flags) {
      /* From the Vulkan 1.1.70 spec:
       *
       * "The queue returned by vkGetDeviceQueue2 must have the same
       * flags value from this structure as that used at device
       * creation time in a VkDeviceQueueCreateInfo instance. If no
       * matching flags were specified at device creation time then
       * pQueue will return VK_NULL_HANDLE."
       */
      *pQueue = VK_NULL_HANDLE;
      return;
   }

   *pQueue = tu_queue_to_handle(queue);
}

void
tu_GetDeviceQueue(VkDevice _device,
                  uint32_t queueFamilyIndex,
                  uint32_t queueIndex,
                  VkQueue *pQueue)
{
   const VkDeviceQueueInfo2 info =
     (VkDeviceQueueInfo2){.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_INFO_2,
                          .queueFamilyIndex = queueFamilyIndex,
                          .queueIndex = queueIndex };

   tu_GetDeviceQueue2(_device, &info, pQueue);
}

VkResult
tu_QueueSubmit(VkQueue _queue,
               uint32_t submitCount,
               const VkSubmitInfo *pSubmits,
               VkFence _fence)
{
   return VK_SUCCESS;
}

VkResult
tu_QueueWaitIdle(VkQueue _queue)
{
   return VK_SUCCESS;
}

VkResult
tu_DeviceWaitIdle(VkDevice _device)
{
   TU_FROM_HANDLE(tu_device, device, _device);

   for (unsigned i = 0; i < TU_MAX_QUEUE_FAMILIES; i++) {
      for (unsigned q = 0; q < device->queue_count[i]; q++) {
         tu_QueueWaitIdle(tu_queue_to_handle(&device->queues[i][q]));
      }
   }
   return VK_SUCCESS;
}

VkResult
tu_EnumerateInstanceExtensionProperties(const char *pLayerName,
                                        uint32_t *pPropertyCount,
                                        VkExtensionProperties *pProperties)
{
   VK_OUTARRAY_MAKE(out, pProperties, pPropertyCount);

   /* We spport no lyaers */
   if (pLayerName)
      return vk_error(NULL, VK_ERROR_LAYER_NOT_PRESENT);

   for (int i = 0; i < TU_INSTANCE_EXTENSION_COUNT; i++) {
      if (tu_supported_instance_extensions.extensions[i]) {
         vk_outarray_append(&out, prop) { *prop = tu_instance_extensions[i]; }
      }
   }

   return vk_outarray_status(&out);
}

VkResult
tu_EnumerateDeviceExtensionProperties(VkPhysicalDevice physicalDevice,
                                      const char *pLayerName,
                                      uint32_t *pPropertyCount,
                                      VkExtensionProperties *pProperties)
{
   /* We spport no lyaers */
   TU_FROM_HANDLE(tu_physical_device, device, physicalDevice);
   VK_OUTARRAY_MAKE(out, pProperties, pPropertyCount);

   /* We spport no lyaers */
   if (pLayerName)
      return vk_error(NULL, VK_ERROR_LAYER_NOT_PRESENT);

   for (int i = 0; i < TU_DEVICE_EXTENSION_COUNT; i++) {
      if (device->supported_extensions.extensions[i]) {
         vk_outarray_append(&out, prop) { *prop = tu_device_extensions[i]; }
      }
   }

   return vk_outarray_status(&out);
}

PFN_vkVoidFunction
tu_GetInstanceProcAddr(VkInstance _instance, const char *pName)
{
   TU_FROM_HANDLE(tu_instance, instance, _instance);

   return tu_lookup_entrypoint_checked(pName,
                                        instance ? instance->api_version : 0,
                                        instance ? &instance->enabled_extensions
                                                 : NULL,
                                        NULL);
}

/* The loader wants us to expose a second GetInstanceProcAddr function
 * to work around certain LD_PRELOAD issues seen in apps.
 */
PUBLIC
VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL
vk_icdGetInstanceProcAddr(VkInstance instance, const char *pName);

PUBLIC
VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL
vk_icdGetInstanceProcAddr(VkInstance instance, const char *pName)
{
   return tu_GetInstanceProcAddr(instance, pName);
}

PFN_vkVoidFunction
tu_GetDeviceProcAddr(VkDevice _device, const char *pName)
{
   TU_FROM_HANDLE(tu_device, device, _device);

   return tu_lookup_entrypoint_checked(pName,
                                        device->instance->api_version,
                                        &device->instance->enabled_extensions,
                                        &device->enabled_extensions);
}

static VkResult
tu_alloc_memory(struct tu_device *device,
                const VkMemoryAllocateInfo *pAllocateInfo,
                const VkAllocationCallbacks *pAllocator,
                VkDeviceMemory *pMem)
{
   struct tu_device_memory *mem;
   VkResult result;

   assert(pAllocateInfo->sType == VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO);

   if (pAllocateInfo->allocationSize == 0) {
      /* Apparently, this is allowed */
      *pMem = VK_NULL_HANDLE;
      return VK_SUCCESS;
   }

   mem = vk_alloc2(&device->alloc,
                   pAllocator,
                   sizeof(*mem),
                   8,
                   VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
   if (mem == NULL)
      return vk_error(device->instance, VK_ERROR_OUT_OF_HOST_MEMORY);

   result = tu_bo_init_new(device, &mem->bo, pAllocateInfo->allocationSize);
   if (!result) {
      vk_free2(&device->alloc, pAllocator, mem);
      return result;
   }

   mem->size = pAllocateInfo->allocationSize;
   mem->type_index = pAllocateInfo->memoryTypeIndex;

   mem->map = NULL;
   mem->user_ptr = NULL;

   *pMem = tu_device_memory_to_handle(mem);

   return VK_SUCCESS;
}

VkResult
tu_AllocateMemory(VkDevice _device,
                  const VkMemoryAllocateInfo *pAllocateInfo,
                  const VkAllocationCallbacks *pAllocator,
                  VkDeviceMemory *pMem)
{
   TU_FROM_HANDLE(tu_device, device, _device);
   return tu_alloc_memory(device, pAllocateInfo, pAllocator, pMem);
}

void
tu_FreeMemory(VkDevice _device,
              VkDeviceMemory _mem,
              const VkAllocationCallbacks *pAllocator)
{
   TU_FROM_HANDLE(tu_device, device, _device);
   TU_FROM_HANDLE(tu_device_memory, mem, _mem);

   if (mem == NULL)
      return;

   tu_bo_finish(device, &mem->bo);
   vk_free2(&device->alloc, pAllocator, mem);
}

VkResult
tu_MapMemory(VkDevice _device,
             VkDeviceMemory _memory,
             VkDeviceSize offset,
             VkDeviceSize size,
             VkMemoryMapFlags flags,
             void **ppData)
{
   TU_FROM_HANDLE(tu_device, device, _device);
   TU_FROM_HANDLE(tu_device_memory, mem, _memory);
   VkResult result;

   if (mem == NULL) {
      *ppData = NULL;
      return VK_SUCCESS;
   }

   if (mem->user_ptr) {
      *ppData = mem->user_ptr;
   } else  if (!mem->map){
      result = tu_bo_map(device, &mem->bo);
      if (result != VK_SUCCESS)
         return result;
      mem->map = mem->bo.map;
   } else
      *ppData = mem->map;

   if (*ppData) {
      *ppData += offset;
      return VK_SUCCESS;
   }

   return vk_error(device->instance, VK_ERROR_MEMORY_MAP_FAILED);
}

void
tu_UnmapMemory(VkDevice _device, VkDeviceMemory _memory)
{
   /* I do not see any unmapping done by the freedreno Gallium driver. */
}

VkResult
tu_FlushMappedMemoryRanges(VkDevice _device,
                           uint32_t memoryRangeCount,
                           const VkMappedMemoryRange *pMemoryRanges)
{
   return VK_SUCCESS;
}

VkResult
tu_InvalidateMappedMemoryRanges(VkDevice _device,
                                uint32_t memoryRangeCount,
                                const VkMappedMemoryRange *pMemoryRanges)
{
   return VK_SUCCESS;
}

void
tu_GetBufferMemoryRequirements(VkDevice _device,
                               VkBuffer _buffer,
                               VkMemoryRequirements *pMemoryRequirements)
{
   TU_FROM_HANDLE(tu_buffer, buffer, _buffer);

   pMemoryRequirements->memoryTypeBits = 1;
   pMemoryRequirements->alignment = 16;
   pMemoryRequirements->size =
     align64(buffer->size, pMemoryRequirements->alignment);
}

void
tu_GetBufferMemoryRequirements2(
   VkDevice device,
   const VkBufferMemoryRequirementsInfo2KHR *pInfo,
   VkMemoryRequirements2KHR *pMemoryRequirements)
{
   tu_GetBufferMemoryRequirements(
     device, pInfo->buffer, &pMemoryRequirements->memoryRequirements);
}

void
tu_GetImageMemoryRequirements(VkDevice _device,
                              VkImage _image,
                              VkMemoryRequirements *pMemoryRequirements)
{
   TU_FROM_HANDLE(tu_image, image, _image);

   pMemoryRequirements->memoryTypeBits = 1;
   pMemoryRequirements->size = image->size;
   pMemoryRequirements->alignment = image->alignment;
}

void
tu_GetImageMemoryRequirements2(VkDevice device,
                               const VkImageMemoryRequirementsInfo2KHR *pInfo,
                               VkMemoryRequirements2KHR *pMemoryRequirements)
{
   tu_GetImageMemoryRequirements(
     device, pInfo->image, &pMemoryRequirements->memoryRequirements);
}

void
tu_GetImageSparseMemoryRequirements(
   VkDevice device,
   VkImage image,
   uint32_t *pSparseMemoryRequirementCount,
   VkSparseImageMemoryRequirements *pSparseMemoryRequirements)
{
   tu_stub();
}

void
tu_GetImageSparseMemoryRequirements2(
   VkDevice device,
   const VkImageSparseMemoryRequirementsInfo2KHR *pInfo,
   uint32_t *pSparseMemoryRequirementCount,
   VkSparseImageMemoryRequirements2KHR *pSparseMemoryRequirements)
{
   tu_stub();
}

void
tu_GetDeviceMemoryCommitment(VkDevice device,
                             VkDeviceMemory memory,
                             VkDeviceSize *pCommittedMemoryInBytes)
{
   *pCommittedMemoryInBytes = 0;
}

VkResult
tu_BindBufferMemory2(VkDevice device,
                     uint32_t bindInfoCount,
                     const VkBindBufferMemoryInfoKHR *pBindInfos)
{
   return VK_SUCCESS;
}

VkResult
tu_BindBufferMemory(VkDevice device,
                    VkBuffer buffer,
                    VkDeviceMemory memory,
                    VkDeviceSize memoryOffset)
{
   const VkBindBufferMemoryInfoKHR info = {
      .sType = VK_STRUCTURE_TYPE_BIND_BUFFER_MEMORY_INFO_KHR,
      .buffer = buffer,
      .memory = memory,
      .memoryOffset = memoryOffset
   };

   return tu_BindBufferMemory2(device, 1, &info);
}

VkResult
tu_BindImageMemory2(VkDevice device,
                    uint32_t bindInfoCount,
                    const VkBindImageMemoryInfoKHR *pBindInfos)
{
   return VK_SUCCESS;
}

VkResult
tu_BindImageMemory(VkDevice device,
                   VkImage image,
                   VkDeviceMemory memory,
                   VkDeviceSize memoryOffset)
{
   const VkBindImageMemoryInfoKHR info = {
      .sType = VK_STRUCTURE_TYPE_BIND_BUFFER_MEMORY_INFO_KHR,
      .image = image,
      .memory = memory,
      .memoryOffset = memoryOffset
   };

   return tu_BindImageMemory2(device, 1, &info);
}

VkResult
tu_QueueBindSparse(VkQueue _queue,
                   uint32_t bindInfoCount,
                   const VkBindSparseInfo *pBindInfo,
                   VkFence _fence)
{
   return VK_SUCCESS;
}

VkResult
tu_CreateFence(VkDevice _device,
               const VkFenceCreateInfo *pCreateInfo,
               const VkAllocationCallbacks *pAllocator,
               VkFence *pFence)
{
   TU_FROM_HANDLE(tu_device, device, _device);

   struct tu_fence *fence = vk_alloc2(&device->alloc,
                                       pAllocator,
                                       sizeof(*fence),
                                       8,
                                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);

   if (!fence)
      return vk_error(device->instance, VK_ERROR_OUT_OF_HOST_MEMORY);

   *pFence = tu_fence_to_handle(fence);

   return VK_SUCCESS;
}

void
tu_DestroyFence(VkDevice _device,
                VkFence _fence,
                const VkAllocationCallbacks *pAllocator)
{
   TU_FROM_HANDLE(tu_device, device, _device);
   TU_FROM_HANDLE(tu_fence, fence, _fence);

   if (!fence)
      return;

   vk_free2(&device->alloc, pAllocator, fence);
}

VkResult
tu_WaitForFences(VkDevice _device,
                 uint32_t fenceCount,
                 const VkFence *pFences,
                 VkBool32 waitAll,
                 uint64_t timeout)
{
   return VK_SUCCESS;
}

VkResult
tu_ResetFences(VkDevice _device, uint32_t fenceCount, const VkFence *pFences)
{
   return VK_SUCCESS;
}

VkResult
tu_GetFenceStatus(VkDevice _device, VkFence _fence)
{
   return VK_SUCCESS;
}

// Queue semaphore functions

VkResult
tu_CreateSemaphore(VkDevice _device,
                   const VkSemaphoreCreateInfo *pCreateInfo,
                   const VkAllocationCallbacks *pAllocator,
                   VkSemaphore *pSemaphore)
{
   TU_FROM_HANDLE(tu_device, device, _device);

   struct tu_semaphore *sem = vk_alloc2(&device->alloc,
                                         pAllocator,
                                         sizeof(*sem),
                                         8,
                                         VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
   if (!sem)
      return vk_error(device->instance, VK_ERROR_OUT_OF_HOST_MEMORY);

   *pSemaphore = tu_semaphore_to_handle(sem);
   return VK_SUCCESS;
}

void
tu_DestroySemaphore(VkDevice _device,
                    VkSemaphore _semaphore,
                    const VkAllocationCallbacks *pAllocator)
{
   TU_FROM_HANDLE(tu_device, device, _device);
   TU_FROM_HANDLE(tu_semaphore, sem, _semaphore);
   if (!_semaphore)
      return;

   vk_free2(&device->alloc, pAllocator, sem);
}

VkResult
tu_CreateEvent(VkDevice _device,
               const VkEventCreateInfo *pCreateInfo,
               const VkAllocationCallbacks *pAllocator,
               VkEvent *pEvent)
{
   TU_FROM_HANDLE(tu_device, device, _device);
   struct tu_event *event = vk_alloc2(&device->alloc,
                                       pAllocator,
                                       sizeof(*event),
                                       8,
                                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);

   if (!event)
      return vk_error(device->instance, VK_ERROR_OUT_OF_HOST_MEMORY);

   *pEvent = tu_event_to_handle(event);

   return VK_SUCCESS;
}

void
tu_DestroyEvent(VkDevice _device,
                VkEvent _event,
                const VkAllocationCallbacks *pAllocator)
{
   TU_FROM_HANDLE(tu_device, device, _device);
   TU_FROM_HANDLE(tu_event, event, _event);

   if (!event)
      return;
   vk_free2(&device->alloc, pAllocator, event);
}

VkResult
tu_GetEventStatus(VkDevice _device, VkEvent _event)
{
   TU_FROM_HANDLE(tu_event, event, _event);

   if (*event->map == 1)
      return VK_EVENT_SET;
   return VK_EVENT_RESET;
}

VkResult
tu_SetEvent(VkDevice _device, VkEvent _event)
{
   TU_FROM_HANDLE(tu_event, event, _event);
   *event->map = 1;

   return VK_SUCCESS;
}

VkResult
tu_ResetEvent(VkDevice _device, VkEvent _event)
{
   TU_FROM_HANDLE(tu_event, event, _event);
   *event->map = 0;

   return VK_SUCCESS;
}

VkResult
tu_CreateBuffer(VkDevice _device,
                const VkBufferCreateInfo *pCreateInfo,
                const VkAllocationCallbacks *pAllocator,
                VkBuffer *pBuffer)
{
   TU_FROM_HANDLE(tu_device, device, _device);
   struct tu_buffer *buffer;

   assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO);

   buffer = vk_alloc2(&device->alloc,
                      pAllocator,
                      sizeof(*buffer),
                      8,
                      VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
   if (buffer == NULL)
      return vk_error(device->instance, VK_ERROR_OUT_OF_HOST_MEMORY);

   buffer->size = pCreateInfo->size;
   buffer->usage = pCreateInfo->usage;
   buffer->flags = pCreateInfo->flags;

   *pBuffer = tu_buffer_to_handle(buffer);

   return VK_SUCCESS;
}

void
tu_DestroyBuffer(VkDevice _device,
                 VkBuffer _buffer,
                 const VkAllocationCallbacks *pAllocator)
{
   TU_FROM_HANDLE(tu_device, device, _device);
   TU_FROM_HANDLE(tu_buffer, buffer, _buffer);

   if (!buffer)
      return;

   vk_free2(&device->alloc, pAllocator, buffer);
}

static uint32_t
tu_surface_max_layer_count(struct tu_image_view *iview)
{
   return iview->type == VK_IMAGE_VIEW_TYPE_3D
            ? iview->extent.depth
            : (iview->base_layer + iview->layer_count);
}

VkResult
tu_CreateFramebuffer(VkDevice _device,
                     const VkFramebufferCreateInfo *pCreateInfo,
                     const VkAllocationCallbacks *pAllocator,
                     VkFramebuffer *pFramebuffer)
{
   TU_FROM_HANDLE(tu_device, device, _device);
   struct tu_framebuffer *framebuffer;

   assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO);

   size_t size =
     sizeof(*framebuffer) +
     sizeof(struct tu_attachment_info) * pCreateInfo->attachmentCount;
   framebuffer = vk_alloc2(
     &device->alloc, pAllocator, size, 8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
   if (framebuffer == NULL)
      return vk_error(device->instance, VK_ERROR_OUT_OF_HOST_MEMORY);

   framebuffer->attachment_count = pCreateInfo->attachmentCount;
   framebuffer->width = pCreateInfo->width;
   framebuffer->height = pCreateInfo->height;
   framebuffer->layers = pCreateInfo->layers;
   for (uint32_t i = 0; i < pCreateInfo->attachmentCount; i++) {
      VkImageView _iview = pCreateInfo->pAttachments[i];
      struct tu_image_view *iview = tu_image_view_from_handle(_iview);
      framebuffer->attachments[i].attachment = iview;

      framebuffer->width = MIN2(framebuffer->width, iview->extent.width);
      framebuffer->height = MIN2(framebuffer->height, iview->extent.height);
      framebuffer->layers =
        MIN2(framebuffer->layers, tu_surface_max_layer_count(iview));
   }

   *pFramebuffer = tu_framebuffer_to_handle(framebuffer);
   return VK_SUCCESS;
}

void
tu_DestroyFramebuffer(VkDevice _device,
                      VkFramebuffer _fb,
                      const VkAllocationCallbacks *pAllocator)
{
   TU_FROM_HANDLE(tu_device, device, _device);
   TU_FROM_HANDLE(tu_framebuffer, fb, _fb);

   if (!fb)
      return;
   vk_free2(&device->alloc, pAllocator, fb);
}

static void
tu_init_sampler(struct tu_device *device,
                struct tu_sampler *sampler,
                const VkSamplerCreateInfo *pCreateInfo)
{
}

VkResult
tu_CreateSampler(VkDevice _device,
                 const VkSamplerCreateInfo *pCreateInfo,
                 const VkAllocationCallbacks *pAllocator,
                 VkSampler *pSampler)
{
   TU_FROM_HANDLE(tu_device, device, _device);
   struct tu_sampler *sampler;

   assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO);

   sampler = vk_alloc2(&device->alloc,
                       pAllocator,
                       sizeof(*sampler),
                       8,
                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
   if (!sampler)
      return vk_error(device->instance, VK_ERROR_OUT_OF_HOST_MEMORY);

   tu_init_sampler(device, sampler, pCreateInfo);
   *pSampler = tu_sampler_to_handle(sampler);

   return VK_SUCCESS;
}

void
tu_DestroySampler(VkDevice _device,
                  VkSampler _sampler,
                  const VkAllocationCallbacks *pAllocator)
{
   TU_FROM_HANDLE(tu_device, device, _device);
   TU_FROM_HANDLE(tu_sampler, sampler, _sampler);

   if (!sampler)
      return;
   vk_free2(&device->alloc, pAllocator, sampler);
}

/* vk_icd.h does not declare this function, so we declare it here to
 * suppress Wmissing-prototypes.
 */
PUBLIC VKAPI_ATTR VkResult VKAPI_CALL
vk_icdNegotiateLoaderICDInterfaceVersion(uint32_t *pSupportedVersion);

PUBLIC VKAPI_ATTR VkResult VKAPI_CALL
vk_icdNegotiateLoaderICDInterfaceVersion(uint32_t *pSupportedVersion)
{
   /* For the full details on loader interface versioning, see
   * <https://github.com/KhronosGroup/Vulkan-LoaderAndValidationLayers/blob/master/loader/LoaderAndLayerInterface.md>.
   * What follows is a condensed summary, to help you navigate the large and
   * confusing official doc.
   *
   *   - Loader interface v0 is incompatible with later versions. We don't
   *     support it.
   *
   *   - In loader interface v1:
   *       - The first ICD entrypoint called by the loader is
   *         vk_icdGetInstanceProcAddr(). The ICD must statically expose this
   *         entrypoint.
   *       - The ICD must statically expose no other Vulkan symbol unless it is
   *         linked with -Bsymbolic.
   *       - Each dispatchable Vulkan handle created by the ICD must be
   *         a pointer to a struct whose first member is VK_LOADER_DATA. The
   *         ICD must initialize VK_LOADER_DATA.loadMagic to ICD_LOADER_MAGIC.
   *       - The loader implements vkCreate{PLATFORM}SurfaceKHR() and
   *         vkDestroySurfaceKHR(). The ICD must be capable of working with
   *         such loader-managed surfaces.
   *
   *    - Loader interface v2 differs from v1 in:
   *       - The first ICD entrypoint called by the loader is
   *         vk_icdNegotiateLoaderICDInterfaceVersion(). The ICD must
   *         statically expose this entrypoint.
   *
   *    - Loader interface v3 differs from v2 in:
   *        - The ICD must implement vkCreate{PLATFORM}SurfaceKHR(),
   *          vkDestroySurfaceKHR(), and other API which uses VKSurfaceKHR,
   *          because the loader no longer does so.
   */
   *pSupportedVersion = MIN2(*pSupportedVersion, 3u);
   return VK_SUCCESS;
}

void
tu_GetPhysicalDeviceExternalSemaphoreProperties(
   VkPhysicalDevice physicalDevice,
   const VkPhysicalDeviceExternalSemaphoreInfoKHR *pExternalSemaphoreInfo,
   VkExternalSemaphorePropertiesKHR *pExternalSemaphoreProperties)
{
   pExternalSemaphoreProperties->exportFromImportedHandleTypes = 0;
   pExternalSemaphoreProperties->compatibleHandleTypes = 0;
   pExternalSemaphoreProperties->externalSemaphoreFeatures = 0;
}

void
tu_GetPhysicalDeviceExternalFenceProperties(
   VkPhysicalDevice physicalDevice,
   const VkPhysicalDeviceExternalFenceInfoKHR *pExternalFenceInfo,
   VkExternalFencePropertiesKHR *pExternalFenceProperties)
{
   pExternalFenceProperties->exportFromImportedHandleTypes = 0;
   pExternalFenceProperties->compatibleHandleTypes = 0;
   pExternalFenceProperties->externalFenceFeatures = 0;
}

VkResult
tu_CreateDebugReportCallbackEXT(
   VkInstance _instance,
   const VkDebugReportCallbackCreateInfoEXT *pCreateInfo,
   const VkAllocationCallbacks *pAllocator,
   VkDebugReportCallbackEXT *pCallback)
{
   TU_FROM_HANDLE(tu_instance, instance, _instance);
   return vk_create_debug_report_callback(&instance->debug_report_callbacks,
                                          pCreateInfo,
                                          pAllocator,
                                          &instance->alloc,
                                          pCallback);
}

void
tu_DestroyDebugReportCallbackEXT(VkInstance _instance,
                                 VkDebugReportCallbackEXT _callback,
                                 const VkAllocationCallbacks *pAllocator)
{
   TU_FROM_HANDLE(tu_instance, instance, _instance);
   vk_destroy_debug_report_callback(&instance->debug_report_callbacks,
                                    _callback,
                                    pAllocator,
                                    &instance->alloc);
}

void
tu_DebugReportMessageEXT(VkInstance _instance,
                         VkDebugReportFlagsEXT flags,
                         VkDebugReportObjectTypeEXT objectType,
                         uint64_t object,
                         size_t location,
                         int32_t messageCode,
                         const char *pLayerPrefix,
                         const char *pMessage)
{
   TU_FROM_HANDLE(tu_instance, instance, _instance);
   vk_debug_report(&instance->debug_report_callbacks,
                   flags,
                   objectType,
                   object,
                   location,
                   messageCode,
                   pLayerPrefix,
                   pMessage);
}

void
tu_GetDeviceGroupPeerMemoryFeatures(
   VkDevice device,
   uint32_t heapIndex,
   uint32_t localDeviceIndex,
   uint32_t remoteDeviceIndex,
   VkPeerMemoryFeatureFlags *pPeerMemoryFeatures)
{
   assert(localDeviceIndex == remoteDeviceIndex);

   *pPeerMemoryFeatures = VK_PEER_MEMORY_FEATURE_COPY_SRC_BIT |
                          VK_PEER_MEMORY_FEATURE_COPY_DST_BIT |
                          VK_PEER_MEMORY_FEATURE_GENERIC_SRC_BIT |
                          VK_PEER_MEMORY_FEATURE_GENERIC_DST_BIT;
}