1 files changed, 151 insertions, 0 deletions
diff --git a/src/core/CL/CLMutableCommandBuffer.cpp b/src/core/CL/CLMutableCommandBuffer.cpp
new file mode 100644
index 0000000000..0e078d8416
--- /dev/null
+++ b/src/core/CL/CLMutableCommandBuffer.cpp
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2023 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "src/core/CL/CLMutableCommandBuffer.h"
+
+#include "arm_compute/core/Error.h"
+
+#include "src/common/utils/Log.h"
+#include "src/core/CL/CLUtils.h"
+
+namespace arm_compute
+{
+
+CLMutableCommandBuffer::CLMutableCommandBuffer(cl_command_queue queue) : CLCommandBuffer()
+{
+    cl_int status = CL_SUCCESS;
+
+    cl_command_buffer_properties_khr properties[] = {
+        CL_COMMAND_BUFFER_FLAGS_KHR,
+        CL_COMMAND_BUFFER_MUTABLE_KHR,
+        0,
+    };
+
+    _cb = clCreateCommandBufferKHR(1, &queue, properties, &status);
+    handle_cl_error("clCreateCommandBufferKHR", status);
+}
+
+CLMutableCommandBuffer::~CLMutableCommandBuffer()
+{
+    const auto status = clReleaseCommandBufferKHR(_cb);
+    if (status != CL_SUCCESS)
+    {
+        const std::string error_message = "clReleaseCommandBufferKHR - Error code: " + std::to_string(status);
+        ARM_COMPUTE_LOG_ERROR_ACL(error_message);
+    }
+}
+
+void CLMutableCommandBuffer::add_kernel(cl_kernel          kernel,
+                                        const cl::NDRange &offset,
+                                        const cl::NDRange &global,
+                                        const cl::NDRange &local)
+{
+    ARM_COMPUTE_ERROR_ON(state() != State::Created);
+
+    cl_mutable_command_khr mutable_handle = nullptr;
+
+    cl_ndrange_kernel_command_properties_khr properties[] = {
+        CL_MUTABLE_DISPATCH_UPDATABLE_FIELDS_KHR,
+        CL_MUTABLE_DISPATCH_ARGUMENTS_KHR,
+        0,
+    };
+
+    const auto error = clCommandNDRangeKernelKHR(
+        _cb, nullptr, properties, kernel, global.dimensions(), offset.dimensions() != 0 ? offset.get() : nullptr,
+        global.get(), local.dimensions() != 0 ? local.get() : nullptr, 0, nullptr, nullptr, &mutable_handle);
+
+    handle_cl_error("clCommandNDRangeKernelKHR", error);
+
+    cl_mutable_dispatch_config_khr mut_dispatch_cfg{};
+    mut_dispatch_cfg.type    = CL_STRUCTURE_TYPE_MUTABLE_DISPATCH_CONFIG_KHR;
+    mut_dispatch_cfg.command = mutable_handle;
+
+    _mut_dispatch_cfgs.emplace_back(mut_dispatch_cfg);
+}
+
+void CLMutableCommandBuffer::add_mutable_argument_generic(cl_uint arg_idx, const void *value, size_t size)
+{
+    ARM_COMPUTE_ERROR_ON(state() != State::Created);
+
+    cl_mutable_dispatch_arg_khr cfg{};
+    cfg.arg_index = arg_idx;
+    cfg.arg_size  = size;
+    cfg.arg_value = value;
+
+    _mut_arg_cfgs.emplace_back(cfg);
+    ++_mut_dispatch_cfgs.back().num_args;
+}
+
+void CLMutableCommandBuffer::finalize()
+{
+    ARM_COMPUTE_ERROR_ON(state() != State::Created);
+
+    const auto error = clFinalizeCommandBufferKHR(_cb);
+    handle_cl_error("clFinalizeCommandBufferKHR", error);
+
+    state(State::Finalized);
+
+    _mut_dispatch_cfgs.shrink_to_fit();
+    _mut_arg_cfgs.shrink_to_fit();
+
+    size_t arg_no = 0;
+
+    for (auto &mut_dispatch_cfg : _mut_dispatch_cfgs)
+    {
+        ARM_COMPUTE_ERROR_ON(arg_no >= _mut_arg_cfgs.size());
+        mut_dispatch_cfg.arg_list = &_mut_arg_cfgs[arg_no];
+
+        arg_no += mut_dispatch_cfg.num_args;
+    }
+
+    _mut_cfg.type                  = CL_STRUCTURE_TYPE_MUTABLE_BASE_CONFIG_KHR;
+    _mut_cfg.next                  = nullptr;
+    _mut_cfg.num_mutable_dispatch  = _mut_dispatch_cfgs.size();
+    _mut_cfg.mutable_dispatch_list = &_mut_dispatch_cfgs[0];
+}
+
+void CLMutableCommandBuffer::update()
+{
+    ARM_COMPUTE_ERROR_ON(state() != State::Finalized);
+
+    const auto error = clUpdateMutableCommandsKHR(_cb, &_mut_cfg);
+
+    handle_cl_error("clUpdateMutableCommandsKHR", error);
+}
+
+void CLMutableCommandBuffer::enqueue()
+{
+    ARM_COMPUTE_ERROR_ON(state() != State::Finalized);
+
+    const auto error = clEnqueueCommandBufferKHR(0, nullptr, _cb, 0, nullptr, nullptr);
+
+    handle_cl_error("clEnqueueCommandBufferKHR", error);
+}
+
+bool CLMutableCommandBuffer::is_finalized() const
+{
+    return state() == State::Finalized;
+}
+
+} // namespace arm_compute