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22a5a1459f
* Update release number to 124.
Github Issues:
* Fix Makefile SPECREMARK macro to work when not building in a git tree
(public issue 992).
* Ignore pname:aspectMask for unused attachments in
slink:VkSubpassDescription2KHR valid usage statements (public pull
request 1028).
* Minor markup / spelling fixes (public pull requests 1035, 1045).
Internal Issues:
* Fix markup in Valid Usage statement for slink:VkCreateFramebuffer
(internal issue 1823).
* Add a new <<synchronization-signal-operation-order, _signal operation
order_>> section to the synchronization chapter which describes in
detail the ordering guarantees provided by the API between fence and
semaphore signal operations (internal merge request 3368).
* Move generated `appendix/meta/` files into the Makefile GENERATED
directory (internal merge request 3381).
New Extensions
* `<<VK_KHR_shader_clock>>`
* `<<VK_KHR_timeline_semaphore>>`
87 lines
2.1 KiB
Plaintext
87 lines
2.1 KiB
Plaintext
include::{generated}/meta/VK_NV_shader_sm_builtins.txt[]
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*Last Modified Date*::
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2019-05-28
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*Interactions and External Dependencies*::
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- This extension requires
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{spirv}/NV/SPV_NV_shader_sm_builtins.html[`SPV_NV_shader_sm_builtins`].
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- This extension enables
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https://github.com/KhronosGroup/GLSL/blob/master/extensions/nv/GLSL_NV_shader_sm_builtins.txt[`GL_NV_shader_sm_builtins`]
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for GLSL source languages.
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*Contributors*::
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- Jeff Bolz, NVIDIA
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- Eric Werness, NVIDIA
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=== Description
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This extension provides the ability to determine device-specific properties
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on NVIDIA GPUs.
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It provides the number of streaming multiprocessors (SMs), the maximum
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number of warps (subgroups) that can run on an SM, and shader builtins to
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enable invocations to identify which SM and warp a shader invocation is
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executing on.
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This extension enables support for the SPIR-V code:ShaderSMBuiltinsNV
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capability.
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These properties and built-ins should: typically only be used for debugging
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purposes.
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=== New Object Types
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None.
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=== New Enum Constants
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* Extending elink:VkStructureType:
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** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_SM_BUILTINS_FEATURES_NV
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** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_SM_BUILTINS_PROPERTIES_NV
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=== New Enums
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None.
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=== New Structures
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* slink:VkPhysicalDeviceShaderSMBuiltinsFeaturesNV
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* slink:VkPhysicalDeviceShaderSMBuiltinsPropertiesNV
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=== New Functions
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None.
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=== New or Modified Built-In Variables
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* <<interfaces-builtin-variables-warpspersmnv,code:WarpsPerSMNV>>
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* <<interfaces-builtin-variables-smcountnv,code:SMCountNV>>
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* <<interfaces-builtin-variables-warpidnv,code:WarpIDNV>>
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* <<interfaces-builtin-variables-smidnv,code:SMIDNV>>
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=== New SPIR-V Capabilities
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* <<spirvenv-capabilities-table-shadersmbuiltins,code:ShaderSMBuiltinsNV>>
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=== Issues
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. What should we call this extension?
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+
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--
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RESOLVED: Using NV_shader_sm_builtins.
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Other options considered included:
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* NV_shader_smid - but SMID is really easy to typo/confuse as SIMD.
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* NV_shader_sm_info - but *Info* is typically reserved for input
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structures
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--
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=== Version History
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* Revision 1, 2019-05-28 (Daniel Koch)
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- Internal revisions
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