P4 to Git Change 2037301 by ssahasra@ssahasra-hip-vdi on 2019/11/26 22:42:25

SWDEV-204782 - introduce hostcall

	Hostcall is a service that allows a kernel to submit requests to the
	host using shared buffers, and block until a response is received. This
	will eventually replace the shared buffer currently used for printf, and
	repurposes the same hidden kernel argument.

	When the runtime launches a kernel that requires the hostcall service it
	performs the following actions:
	- Launch a hostcall listener thread if it is not already running.
	- Locate the hostcall buffer for the corresponding hardware queue, or
	  create a new one.
	- Register the new hostcall buffer with the listener thread.
	- Set the hostcall buffer pointer as an implicit argument to the kernel.

Affected files ...

... //depot/stg/opencl/drivers/opencl/make/hip.git/tests/Makefile#21 edit
... //depot/stg/opencl/drivers/opencl/make/hip.git/tests/build/Makefile.hip_tests#31 edit
... //depot/stg/opencl/drivers/opencl/make/hip.git/tests/scripts/hip_hostcall_tests.txt#1 add
... //depot/stg/opencl/drivers/opencl/make/hip.git/tests/scripts/run_all_tests.sh#22 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/devkernel.cpp#30 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/devkernel.hpp#19 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocdevice.cpp#143 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocdevice.hpp#45 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rochostcall.cpp#1 add
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rochostcall.hpp#1 add
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocvirtual.cpp#92 edit

rocclr/runtime/device/devkernel.hpp

@@ -111,7 +111,8 @@ static const std::map<std::string,ValueKind> ArgValueKind =
   {"HiddenPrintfBuffer",      ValueKind::HiddenPrintfBuffer},
   {"HiddenDefaultQueue",      ValueKind::HiddenDefaultQueue},
   {"HiddenCompletionAction",  ValueKind::HiddenCompletionAction},
-  {"HiddenMultigridSyncArg",  ValueKind::HiddenMultiGridSyncArg}
+  {"HiddenMultigridSyncArg",  ValueKind::HiddenMultiGridSyncArg},
+  {"HiddenHostcallBuffer",    ValueKind::HiddenHostcallBuffer},
 };
 
 static const std::map<std::string,ValueType> ArgValueType =
@@ -225,7 +226,8 @@ static const std::map<std::string,ValueKind> ArgValueKindV3 =
   {"hidden_printf_buffer",      ValueKind::HiddenPrintfBuffer},
   {"hidden_default_queue",      ValueKind::HiddenDefaultQueue},
   {"hidden_completion_action",  ValueKind::HiddenCompletionAction},
-  {"hidden_multigrid_sync_arg", ValueKind::HiddenMultiGridSyncArg}
+  {"hidden_multigrid_sync_arg", ValueKind::HiddenMultiGridSyncArg},
+  {"hidden_hostcall_buffer",    ValueKind::HiddenHostcallBuffer},
 };
 
 static const std::map<std::string,ValueType> ArgValueTypeV3 =
@@ -320,7 +322,8 @@ struct KernelParameterDescriptor {
     ImageObject = 11,
     SamplerObject = 12,
     QueueObject = 13,
-    HiddenMultiGridSync = 14
+    HiddenMultiGridSync = 14,
+    HiddenHostcallBuffer = 15,
   };
   clk_value_type_t type_;  //!< The parameter's type
   size_t offset_;          //!< Its offset in the parameter's stack