vkCmdPipelineBarrier2(3)

C Specification

To record a pipeline barrier, call:

// Provided by VK_VERSION_1_3
void vkCmdPipelineBarrier2(
    VkCommandBuffer                             commandBuffer,
    const VkDependencyInfo*                     pDependencyInfo);

or the equivalent command

// Provided by VK_KHR_synchronization2
void vkCmdPipelineBarrier2KHR(
    VkCommandBuffer                             commandBuffer,
    const VkDependencyInfo*                     pDependencyInfo);

Parameters

commandBuffer is the command buffer into which the command is recorded.
pDependencyInfo is a pointer to a VkDependencyInfo structure defining the scopes of this operation.

Description

When vkCmdPipelineBarrier2 is submitted to a queue, it defines memory dependencies between commands that were submitted to the same queue before it, and those submitted to the same queue after it.

The first synchronization scope and access scope of each memory dependency defined by pDependencyInfo are applied to operations that occurred earlier in submission order.

The second synchronization scope and access scope of each memory dependency defined by pDependencyInfo are applied to operations that occurred later in submission order.

If vkCmdPipelineBarrier2 is recorded within a render pass instance, the synchronization scopes are limited to operations within the same subpass , or must follow the restrictions for Tile Image Access Synchronization if the render pass instance was started with vkCmdBeginRendering .

Valid Usage

VUID-vkCmdPipelineBarrier2-None-07889
If vkCmdPipelineBarrier2 is called within a render pass instance using a VkRenderPass object, the render pass must have been created with at least one subpass dependency that expresses a dependency from the current subpass to itself, does not include VK_DEPENDENCY_BY_REGION_BIT if this command does not, does not include VK_DEPENDENCY_VIEW_LOCAL_BIT if this command does not, and has synchronization scopes and access scopes that are all supersets of the scopes defined in this command
VUID-vkCmdPipelineBarrier2-bufferMemoryBarrierCount-01178
If vkCmdPipelineBarrier2 is called within a render pass instance using a VkRenderPass object, it must not include any buffer memory barriers
VUID-vkCmdPipelineBarrier2-image-04073
If vkCmdPipelineBarrier2 is called within a render pass instance using a VkRenderPass object, the image member of any image memory barrier included in this command must be an attachment used in the current subpass both as an input attachment, and as either a color or depth/stencil attachment
VUID-vkCmdPipelineBarrier2-oldLayout-01181
If vkCmdPipelineBarrier2 is called within a render pass instance, the oldLayout and newLayout members of any image memory barrier included in this command must be equal
VUID-vkCmdPipelineBarrier2-srcQueueFamilyIndex-01182
If vkCmdPipelineBarrier2 is called within a render pass instance, the srcQueueFamilyIndex and dstQueueFamilyIndex members of any memory barrier included in this command must be equal
VUID-vkCmdPipelineBarrier2-None-07890
If vkCmdPipelineBarrier2 is called within a render pass instance, and the source stage masks of any memory barriers include framebuffer-space stages, destination stage masks of all memory barriers must only include framebuffer-space stages
VUID-vkCmdPipelineBarrier2-dependencyFlags-07891
If vkCmdPipelineBarrier2 is called within a render pass instance, and and the source stage masks of any memory barriers include framebuffer-space stages, then dependencyFlags must include VK_DEPENDENCY_BY_REGION_BIT
VUID-vkCmdPipelineBarrier2-None-07892
If vkCmdPipelineBarrier2 is called within a render pass instance, the source and destination stage masks of any memory barriers must only include graphics pipeline stages
VUID-vkCmdPipelineBarrier2-dependencyFlags-01186
If vkCmdPipelineBarrier2 is called outside of a render pass instance, the dependency flags must not include VK_DEPENDENCY_VIEW_LOCAL_BIT
VUID-vkCmdPipelineBarrier2-None-07893
If vkCmdPipelineBarrier2 is called inside a render pass instance, and there is more than one view in the current subpass, dependency flags must include VK_DEPENDENCY_VIEW_LOCAL_BIT
VUID-vkCmdPipelineBarrier2-shaderTileImageColorReadAccess-08718
If vkCmdPipelineBarrier2 is called within a render pass instance and none of the shaderTileImageColorReadAccess, shaderTileImageDepthReadAccess, shaderTileImageStencilReadAccess features are enabled, the render pass must not have been started with vkCmdBeginRendering
VUID-vkCmdPipelineBarrier2-None-08719
If vkCmdPipelineBarrier2 is called within a render pass instance started with vkCmdBeginRendering, it must adhere to the restrictions in Explicit Render Pass Tile Image Access Synchronization
VUID-vkCmdPipelineBarrier2-synchronization2-03848
The synchronization2 feature must be enabled
VUID-vkCmdPipelineBarrier2-srcStageMask-03849
The srcStageMask member of any element of the pMemoryBarriers, pBufferMemoryBarriers, or pImageMemoryBarriers members of pDependencyInfo must only include pipeline stages valid for the queue family that was used to create the command pool that commandBuffer was allocated from
VUID-vkCmdPipelineBarrier2-dstStageMask-03850
The dstStageMask member of any element of the pMemoryBarriers, pBufferMemoryBarriers, or pImageMemoryBarriers members of pDependencyInfo must only include pipeline stages valid for the queue family that was used to create the command pool that commandBuffer was allocated from

Valid Usage (Implicit)

VUID-vkCmdPipelineBarrier2-commandBuffer-parameter
commandBuffer must be a valid VkCommandBuffer handle
VUID-vkCmdPipelineBarrier2-pDependencyInfo-parameter
pDependencyInfo must be a valid pointer to a valid VkDependencyInfo structure
VUID-vkCmdPipelineBarrier2-commandBuffer-recording
commandBuffer must be in the recording state
VUID-vkCmdPipelineBarrier2-commandBuffer-cmdpool
The VkCommandPool that commandBuffer was allocated from must support transfer, graphics, compute, decode, or encode operations

Host Synchronization

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