Add CL_PLATFORM_UNLOADABLE_KHR and layers deinitialization.

KhronosGroup · Sep 4, 2024 · 3042c3b · 3042c3b
1 parent 77c7152
commit 3042c3b
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Showing 4 changed files with 42 additions and 6 deletions.
diff --git a/api/cl_khr_icd.asciidoc b/api/cl_khr_icd.asciidoc
@@ -273,11 +273,18 @@ Returned by {clGetPlatformIDs} when no platforms are found:
 
   * {CL_PLATFORM_NOT_FOUND_KHR}
 
-New in version 2.0.0, used as a value in the pointer to
-`clGetPlatformIDs` in the dispatch structure:
+New in version 2.0.0.
+
+Used as a value in the pointer to `clGetPlatformIDs` in
+the dispatch structure:
 
   * `CL_ICD2_TAG_KHR`
 
+Used as a parameter name to query if a platform can be unlaoded by the ICD
+Loader:
+
+  * {CL_PLATFORM_UNLOADABLE_KHR}
+
 === Issues
 
   . Some OpenCL functions do not take an object argument from which their

diff --git a/api/opencl_platform_layer.asciidoc b/api/opencl_platform_layer.asciidoc
@@ -337,6 +337,11 @@ include::{generated}/api/version-notes/CL_PLATFORM_ICD_SUFFIX_KHR.asciidoc[]
   | {char_TYPE}[]
     | The function name suffix used to identify extension functions to be
       directed to this platform by the ICD Loader.
+| {CL_PLATFORM_UNLOADABLE_KHR_anchor}
+
+include::{generated}/api/version-notes/CL_PLATFORM_UNLOADABLE_KHR.asciidoc[]
+  | {cl_bool_TYPE}
+    | The platform can be unloaded by the ICD Loader.
 endif::cl_khr_icd[]
 |====
 

diff --git a/extensions/cl_loader_layers.asciidoc b/extensions/cl_loader_layers.asciidoc
@@ -21,6 +21,7 @@ interception layers (Layer ICDs) for OpenCL.
 |====
 | *Date*     | *Version* | *Description*
 | 2020-11-04 | 1.0.0     | First assigned version.
+| 2024-09-04 | 2.0.0     | Deinitialization support.
 |====
 
 ==== Contributors
@@ -45,6 +46,8 @@ cl_int clInitLayer(cl_uint                 num_entries,
                    const cl_icd_dispatch  *target_dispatch,
                    cl_uint                *num_entries_ret,
                    const cl_icd_dispatch **layer_dispatch_ret);
+
+cl_int clDeinitLayer(void);
 ----
 
 [[cl_loader_layers-new-api-types]]
@@ -72,12 +75,13 @@ Accepted as _param_name_ to the function *clGetLayerInfo*:
 === New API Tokens
 
 Returned by *clGetLayerInfo* when supplied *CL_LAYER_API_VERSION*
-and the corresponding layer implements version 1.0.0 of the layer
-API:
+and the corresponding layer implements version 1.0.0 or 2.0.0 of
+the layer API:
 
 [source,opencl]
 ----
 #define CL_LAYER_API_VERSION_100 100
+#define CL_LAYER_API_VERSION_200 200
 ----
 
 [[cl_loader_layers-new-environment-variables]]
@@ -173,6 +177,18 @@ Otherwise, it returns one of the following errors.
     _target_dispatch_ is a `NULL` value, or _num_entries_ret_ is a `NULL`
     value, or _layer_dispatch_ret_ is a `NULL` value.
 
+==== Layer Deinitialization
+
+[open,refpage='clDeinitLayer',desc='Deinitialize an OpenCL layer',type='protos']
+Deinitilization of a layer can be achieved with the function:
+[source,opencl]
+
+----
+cl_int clInitLayer(void);
+----
+
+*clDeinitLayer* returns *CL_SUCCESS* if the function is executed successfully.
+
 [[cl_loader_layers-source-code]]
 === Source Code
 

diff --git a/xml/cl.xml b/xml/cl.xml
@@ -522,6 +522,7 @@ server's OpenCL/api-docs repository.
 
     <enums name="Constants.cl_loader_layers" vendor="Khronos" comment="Defined Layer API version, in cl_layer.h">
         <enum value="100"           name="CL_LAYER_API_VERSION_100"/>
+        <enum value="200"           name="CL_LAYER_API_VERSION_200"/>
     </enums>
 
     <enums start="0" end="-999" name="ErrorCodes.0" vendor="Khronos" comment="Error codes start at 0 and decrease">
@@ -1422,7 +1423,8 @@ server's OpenCL/api-docs repository.
         <enum value="0x0908"        name="CL_PLATFORM_COMMAND_BUFFER_CAPABILITIES_KHR"/>
             <unused start="0x0909" end="0x091F" comment="Reserved to Khronos"/>
         <enum value="0x0920"        name="CL_PLATFORM_ICD_SUFFIX_KHR"/>
-            <unused start="0x0921" end="0x09FF" comment="Vendor extensions"/>
+        <enum value="0x0921"        name="CL_PLATFORM_UNLOADABLE_KHR"/>
+            <unused start="0x0922" end="0x09FF" comment="Vendor extensions"/>
     </enums>
 
     <enums start="0x1000" end="0x107F" name="cl_device_info" vendor="Khronos">
@@ -4246,6 +4248,9 @@ server's OpenCL/api-docs repository.
             <param><type>cl_uint</type>*                                <name>num_entries_ret</name></param>
             <param>const <type>cl_icd_dispatch</type>**                 <name>layer_dispatch_ret</name></param>
         </command>
+        <command>
+            <proto><type>cl_int</type>                                  <name>clDeinitLayer</name></proto>
+        </command>
         <command>
             <proto><type>cl_int</type>                                  <name>clGetICDLoaderInfoOCLICD</name></proto>
             <param><type>cl_icdl_info</type>                            <name>param_name</name></param>
@@ -5625,6 +5630,7 @@ server's OpenCL/api-docs repository.
             </require>
             <require comment="cl_platform_info">
                 <enum name="CL_PLATFORM_ICD_SUFFIX_KHR"/>
+                <enum name="CL_PLATFORM_UNLOADABLE_KHR"/>
             </require>
             <require comment="Error codes">
                 <enum name="CL_PLATFORM_NOT_FOUND_KHR"/>
@@ -5638,7 +5644,7 @@ server's OpenCL/api-docs repository.
                 <command name="clIcdSetPlatformDispatchDataKHR"/>
             </require>
         </extension>
-        <extension name="cl_loader_layers" revision="1.0.0" supported="opencl">
+        <extension name="cl_loader_layers" revision="2.0.0" supported="opencl">
             <require>
                 <type name="CL/cl_icd.h"/>
             </require>
@@ -5652,10 +5658,12 @@ server's OpenCL/api-docs repository.
             </require>
             <require comment="Misc API enums">
                 <enum name="CL_LAYER_API_VERSION_100"/>
+                <enum name="CL_LAYER_API_VERSION_200"/>
             </require>
             <require>
                 <command name="clGetLayerInfo"/>
                 <command name="clInitLayer"/>
+                <command name="clDeinitLayer"/>
             </require>
         </extension>
         <extension name="cl_loader_info" revision="1.0.0" supported="opencl">