v3dv: implement vk{Create,Destroy}Buffer

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>

diff --git a/src/broadcom/vulkan/v3dv_device.c b/src/broadcom/vulkan/v3dv_device.c
index aabe2a4..398ceec 100644 (file)
--- a/src/broadcom/vulkan/v3dv_device.c
+++ b/src/broadcom/vulkan/v3dv_device.c
@@ -1299,3 +1299,48 @@ v3dv_BindImageMemory(VkDevice _device,
 
    return VK_SUCCESS;
 }
+
+VkResult
+v3dv_CreateBuffer(VkDevice  _device,
+                  const VkBufferCreateInfo *pCreateInfo,
+                  const VkAllocationCallbacks *pAllocator,
+                  VkBuffer *pBuffer)
+{
+   V3DV_FROM_HANDLE(v3dv_device, device, _device);
+   struct v3dv_buffer *buffer;
+
+   assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO);
+   assert(pCreateInfo->usage != 0);
+
+   /* We don't support any flags for now */
+   assert(pCreateInfo->flags == 0);
+
+   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->alignment = 256; /* nonCoherentAtomSize */
+
+   assert((buffer->size & 0xffffffff) == buffer->size);
+
+   *pBuffer = v3dv_buffer_to_handle(buffer);
+
+   return VK_SUCCESS;
+}
+
+void
+v3dv_DestroyBuffer(VkDevice _device,
+                   VkBuffer _buffer,
+                   const VkAllocationCallbacks *pAllocator)
+{
+   V3DV_FROM_HANDLE(v3dv_device, device, _device);
+   V3DV_FROM_HANDLE(v3dv_buffer, buffer, _buffer);
+
+   if (!buffer)
+      return;
+
+   vk_free2(&device->alloc, pAllocator, buffer);
+}

diff --git a/src/broadcom/vulkan/v3dv_private.h b/src/broadcom/vulkan/v3dv_private.h
index b4a4494..268593b 100644 (file)
--- a/src/broadcom/vulkan/v3dv_private.h
+++ b/src/broadcom/vulkan/v3dv_private.h
@@ -295,6 +295,12 @@ struct v3dv_image_view {
    uint32_t offset;
 };
 
+struct v3dv_buffer {
+   VkDeviceSize size;
+   VkBufferUsageFlags usage;
+   uint32_t alignment;
+};
+
 struct v3dv_shader_module {
    unsigned char sha1[20];
    uint32_t size;
@@ -392,6 +398,7 @@ V3DV_DEFINE_HANDLE_CASTS(v3dv_instance, VkInstance)
 V3DV_DEFINE_HANDLE_CASTS(v3dv_physical_device, VkPhysicalDevice)
 V3DV_DEFINE_HANDLE_CASTS(v3dv_queue, VkQueue)
 
+V3DV_DEFINE_NONDISP_HANDLE_CASTS(v3dv_buffer, VkBuffer)
 V3DV_DEFINE_NONDISP_HANDLE_CASTS(v3dv_device_memory, VkDeviceMemory)
 V3DV_DEFINE_NONDISP_HANDLE_CASTS(v3dv_image, VkImage)
 V3DV_DEFINE_NONDISP_HANDLE_CASTS(v3dv_image_view, VkImageView)