[Mesa-dev] [PATCH 5/7] anv: Implement VK_KHX_external_memory_capabilities

Jason Ekstrand jason at jlekstrand.net
Mon Feb 27 18:25:03 UTC 2017


From: Chad Versace <chadversary at chromium.org>

This is a complete but trivial implementation. It's trivial becasue We
support no external memory capabilities yet.  Most of the real work in
this commit is in reworking the UUIDs advertised by the driver.
---
 src/intel/vulkan/anv_device.c           | 53 +++++++++++++++++++++++++++++----
 src/intel/vulkan/anv_entrypoints_gen.py |  1 +
 src/intel/vulkan/anv_formats.c          | 44 ++++++++++++++++++++++++++-
 src/intel/vulkan/anv_private.h          |  2 ++
 4 files changed, 93 insertions(+), 7 deletions(-)

diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index 3609670..9ee2e02 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -74,11 +74,37 @@ anv_physical_device_init_uuids(struct anv_physical_device *device)
    if (sha1_ctx == NULL)
       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 
+   /* The pipeline cache UUID is used for determining when a pipeline cache is
+    * invalid.  It needs both a driver build and the PCI ID of the device.
+    */
    _mesa_sha1_update(sha1_ctx, build_id_data(note), build_id_len);
    _mesa_sha1_update(sha1_ctx, &device->chipset_id, sizeof(device->chipset_id));
    _mesa_sha1_final(sha1_ctx, sha1);
    memcpy(device->pipeline_cache_uuid, sha1, VK_UUID_SIZE);
 
+   /* The driver UUID is used for determining sharability of images and memory
+    * between two Vulkan instances in separate processes.  People who want to
+    * share memory need to also check the device UUID (below) so all this
+    * needs to be is the build-id.
+    */
+   memcpy(device->driver_uuid, build_id_data(note), VK_UUID_SIZE);
+
+   sha1_ctx = _mesa_sha1_init();
+   if (sha1_ctx == NULL)
+      return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
+
+   /* The device UUID uniquely identifies the given device within the machine.
+    * Since we never have more than one device, this doesn't need to be a real
+    * UUID.  However, on the off-chance that someone tries to use this to
+    * cache pre-tiled images or something of the like, we use the PCI ID and
+    * some bits if ISL info to ensure that this is safe.
+    */
+   _mesa_sha1_update(sha1_ctx, &device->chipset_id, sizeof(device->chipset_id));
+   _mesa_sha1_update(sha1_ctx, &device->isl_dev.has_bit6_swizzling,
+                     sizeof(device->isl_dev.has_bit6_swizzling));
+   _mesa_sha1_final(sha1_ctx, sha1);
+   memcpy(device->device_uuid, sha1, VK_UUID_SIZE);
+
    return VK_SUCCESS;
 }
 
@@ -163,10 +189,6 @@ anv_physical_device_init(struct anv_physical_device *device,
       goto fail;
    }
 
-   result = anv_physical_device_init_uuids(device);
-   if (result != VK_SUCCESS)
-      goto fail;
-
    bool swizzled = anv_gem_get_bit6_swizzle(fd, I915_TILING_X);
 
    /* GENs prior to 8 do not support EU/Subslice info */
@@ -206,14 +228,18 @@ anv_physical_device_init(struct anv_physical_device *device,
    device->compiler->shader_debug_log = compiler_debug_log;
    device->compiler->shader_perf_log = compiler_perf_log;
 
+   isl_device_init(&device->isl_dev, &device->info, swizzled);
+
+   result = anv_physical_device_init_uuids(device);
+   if (result != VK_SUCCESS)
+      goto fail;
+
    result = anv_init_wsi(device);
    if (result != VK_SUCCESS) {
       ralloc_free(device->compiler);
       goto fail;
    }
 
-   isl_device_init(&device->isl_dev, &device->info, swizzled);
-
    device->local_fd = fd;
    return VK_SUCCESS;
 
@@ -257,6 +283,10 @@ static const VkExtensionProperties global_extensions[] = {
       .extensionName = VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME,
       .specVersion = 1,
    },
+   {
+      .extensionName = VK_KHX_EXTERNAL_MEMORY_CAPABILITIES_EXTENSION_NAME,
+      .specVersion = 1,
+   },
 };
 
 static const VkExtensionProperties device_extensions[] = {
@@ -668,10 +698,21 @@ void anv_GetPhysicalDeviceProperties2KHR(
     VkPhysicalDevice                            physicalDevice,
     VkPhysicalDeviceProperties2KHR*             pProperties)
 {
+   ANV_FROM_HANDLE(anv_physical_device, pdevice, physicalDevice);
+
    anv_GetPhysicalDeviceProperties(physicalDevice, &pProperties->properties);
 
    vk_foreach_struct(ext, pProperties->pNext) {
       switch (ext->sType) {
+      case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ID_PROPERTIES_KHX: {
+         VkPhysicalDeviceIDPropertiesKHX *id_props =
+            (VkPhysicalDeviceIDPropertiesKHX *)ext;
+         memcpy(id_props->deviceUUID, pdevice->device_uuid, VK_UUID_SIZE);
+         memcpy(id_props->driverUUID, pdevice->driver_uuid, VK_UUID_SIZE);
+         /* The LUID is for Windows. */
+         id_props->deviceLUIDValid = false;
+         break;
+      }
       default:
          anv_debug_ignored_stype(ext->sType);
          break;
diff --git a/src/intel/vulkan/anv_entrypoints_gen.py b/src/intel/vulkan/anv_entrypoints_gen.py
index 93511ec..6cf9f5f 100644
--- a/src/intel/vulkan/anv_entrypoints_gen.py
+++ b/src/intel/vulkan/anv_entrypoints_gen.py
@@ -37,6 +37,7 @@ supported_extensions = [
    'VK_KHR_wayland_surface',
    'VK_KHR_xcb_surface',
    'VK_KHR_xlib_surface',
+   'VK_KHX_external_memory_capabilities',
 ]
 
 # We generate a static hash table for entry point lookup
diff --git a/src/intel/vulkan/anv_formats.c b/src/intel/vulkan/anv_formats.c
index 6005791..8f230ea 100644
--- a/src/intel/vulkan/anv_formats.c
+++ b/src/intel/vulkan/anv_formats.c
@@ -671,13 +671,44 @@ VkResult anv_GetPhysicalDeviceImageFormatProperties2KHR(
 
    vk_foreach_struct(ext, pImageFormatProperties->pNext) {
       switch (ext->sType) {
+      case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_IMAGE_FORMAT_INFO_KHX: {
+         const VkPhysicalDeviceExternalImageFormatInfoKHX *ext_info =
+            (const VkPhysicalDeviceExternalImageFormatInfoKHX *)ext;
+         if (ext_info->handleType != 0) {
+            /* FINISHME: Support at least one external memory type for images.
+             *
+             * From the Vulkan 1.x spec:
+             *    If handleType is not compatible with [the stuff in] in
+             *    VkPhysicalDeviceImageFormatInfo2KHR, then
+             *    vkGetPhysicalDeviceImageFormatProperties2KHR returns
+             *    VK_ERROR_FORMAT_NOT_SUPPORTED.
+             */
+            result = vk_errorf(VK_ERROR_FORMAT_NOT_SUPPORTED,
+                              "unsupported VkExternalMemoryTypeFlagBitsKHX 0x%x",
+                              ext_info->handleType);
+            if (result != VK_SUCCESS)
+               goto fail;
+         }
+         break;
+      }
       default:
          anv_debug_ignored_stype(ext->sType);
          break;
       }
    }
 
-   return VK_SUCCESS;
+fail:
+   if (result == VK_ERROR_FORMAT_NOT_SUPPORTED) {
+      /* From the Vulkan 1.x spec:
+       *    If the combination of parameters to
+       *    vkGetPhysicalDeviceImageFormatProperties2KHR is not supported by the
+       *    implementation for use in vkCreateImage, then all members of
+       *    imageFormatProperties will be filled with zero.
+       */
+      pImageFormatProperties->imageFormatProperties = (VkImageFormatProperties) {0};
+   }
+
+   return result;
 }
 
 void anv_GetPhysicalDeviceSparseImageFormatProperties(
@@ -703,3 +734,14 @@ void anv_GetPhysicalDeviceSparseImageFormatProperties2KHR(
    /* Sparse images are not yet supported. */
    *pPropertyCount = 0;
 }
+
+void anv_GetPhysicalDeviceExternalBufferPropertiesKHX(
+    VkPhysicalDevice                             physicalDevice,
+    const VkPhysicalDeviceExternalBufferInfoKHX* pExternalBufferInfo,
+    VkExternalBufferPropertiesKHX*               pExternalBufferProperties)
+{
+   anv_finishme("Handle external buffers");
+
+   pExternalBufferProperties->externalMemoryProperties =
+      (VkExternalMemoryPropertiesKHX) {0};
+}
diff --git a/src/intel/vulkan/anv_private.h b/src/intel/vulkan/anv_private.h
index a4fd707..816ee8a 100644
--- a/src/intel/vulkan/anv_private.h
+++ b/src/intel/vulkan/anv_private.h
@@ -531,6 +531,8 @@ struct anv_physical_device {
     uint32_t                                    subslice_total;
 
     uint8_t                                     pipeline_cache_uuid[VK_UUID_SIZE];
+    uint8_t                                     driver_uuid[VK_UUID_SIZE];
+    uint8_t                                     device_uuid[VK_UUID_SIZE];
 
     struct wsi_device                       wsi_device;
     int                                         local_fd;
-- 
2.5.0.400.gff86faf



More information about the mesa-dev mailing list