vkCmdUpdatePipelineIndirectBufferNV(3)

C Specification

To save a compute pipeline’s metadata at a device address call:

// Provided by VK_NV_device_generated_commands_compute
void vkCmdUpdatePipelineIndirectBufferNV(
    VkCommandBuffer                             commandBuffer,
    VkPipelineBindPoint                         pipelineBindPoint,
    VkPipeline                                  pipeline);

Parameters

commandBuffer is the command buffer into which the command will be recorded.
pipelineBindPoint is a VkPipelineBindPoint value specifying the type of pipeline whose metadata will be saved.
pipeline is the pipeline whose metadata will be saved.

Description

vkCmdUpdatePipelineIndirectBufferNV is only allowed outside of a render pass. This command is treated as a “transfer” operation for the purposes of synchronization barriers. The writes to the address must be synchronized using stages VK_PIPELINE_STAGE_2_COPY_BIT and VK_PIPELINE_STAGE_COMMAND_PREPROCESS_BIT_NV and with access masks VK_ACCESS_MEMORY_WRITE_BIT and VK_ACCESS_COMMAND_PREPROCESS_READ_BIT_NV respectively before using the results in preprocessing.

Valid Usage

VUID-vkCmdUpdatePipelineIndirectBufferNV-pipelineBindPoint-09018
pipelineBindPoint must be VK_PIPELINE_BIND_POINT_COMPUTE
VUID-vkCmdUpdatePipelineIndirectBufferNV-pipeline-09019
pipeline must have been created with VK_PIPELINE_CREATE_INDIRECT_BINDABLE_BIT_NV flag set
VUID-vkCmdUpdatePipelineIndirectBufferNV-pipeline-09020
pipeline must have been created with VkComputePipelineIndirectBufferInfoNV structure specifying a valid address where its metadata will be saved
VUID-vkCmdUpdatePipelineIndirectBufferNV-deviceGeneratedComputePipelines-09021
The VkPhysicalDeviceDeviceGeneratedCommandsComputeFeaturesNV::deviceGeneratedComputePipelines feature must be enabled

Valid Usage (Implicit)

VUID-vkCmdUpdatePipelineIndirectBufferNV-commandBuffer-parameter
commandBuffer must be a valid VkCommandBuffer handle
VUID-vkCmdUpdatePipelineIndirectBufferNV-pipelineBindPoint-parameter
pipelineBindPoint must be a valid VkPipelineBindPoint value
VUID-vkCmdUpdatePipelineIndirectBufferNV-pipeline-parameter
pipeline must be a valid VkPipeline handle
VUID-vkCmdUpdatePipelineIndirectBufferNV-commandBuffer-recording
commandBuffer must be in the recording state
VUID-vkCmdUpdatePipelineIndirectBufferNV-commandBuffer-cmdpool
The VkCommandPool that commandBuffer was allocated from must support transfer, graphics, or compute operations
VUID-vkCmdUpdatePipelineIndirectBufferNV-renderpass
This command must only be called outside of a render pass instance
VUID-vkCmdUpdatePipelineIndirectBufferNV-videocoding
This command must only be called outside of a video coding scope
VUID-vkCmdUpdatePipelineIndirectBufferNV-commonparent
Both of commandBuffer, and pipeline must have been created, allocated, or retrieved from the same VkDevice

Host Synchronization

Host access to commandBuffer must be externally synchronized
Host access to the VkCommandPool that commandBuffer was allocated from must be externally synchronized