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#include "virtgpu-forward-impl.h"
void * apir_buffer_get_base(virtgpu * gpu, apir_buffer_context_t * buffer_context) {
apir_encoder * encoder;
apir_decoder * decoder;
ApirForwardReturnCode ret;
REMOTE_CALL_PREPARE(gpu, encoder, APIR_COMMAND_TYPE_BUFFER_GET_BASE);
apir_encode_apir_buffer_host_handle_t(encoder, &buffer_context->host_handle);
REMOTE_CALL(gpu, encoder, decoder, ret);
uintptr_t base;
apir_decode_uintptr_t(decoder, &base);
remote_call_finish(gpu, encoder, decoder);
return (void *) base;
}
void apir_buffer_set_tensor(virtgpu * gpu,
apir_buffer_context_t * buffer_context,
ggml_tensor * tensor,
const void * data,
size_t offset,
size_t size) {
apir_encoder * encoder;
apir_decoder * decoder;
ApirForwardReturnCode ret;
REMOTE_CALL_PREPARE(gpu, encoder, APIR_COMMAND_TYPE_BUFFER_SET_TENSOR);
apir_encode_apir_buffer_host_handle_t(encoder, &buffer_context->host_handle);
apir_encode_ggml_tensor(encoder, tensor);
virtgpu_shmem temp_shmem; // Local storage for large buffers
virtgpu_shmem * shmem = &temp_shmem;
bool using_shared_shmem = false;
if (size <= gpu->data_shmem.mmap_size) {
// Lock mutex before using shared data_shmem buffer
if (mtx_lock(&gpu->data_shmem_mutex) != thrd_success) {
GGML_ABORT(GGML_VIRTGPU "%s: Failed to lock data_shmem mutex", __func__);
}
using_shared_shmem = true;
shmem = &gpu->data_shmem;
} else if (virtgpu_shmem_create(gpu, size, shmem)) {
GGML_ABORT(GGML_VIRTGPU "%s: Couldn't allocate the guest-host shared buffer", __func__);
}
memcpy(shmem->mmap_ptr, data, size);
apir_encode_virtgpu_shmem_res_id(encoder, shmem->res_id);
apir_encode_size_t(encoder, &offset);
apir_encode_size_t(encoder, &size);
REMOTE_CALL(gpu, encoder, decoder, ret);
remote_call_finish(gpu, encoder, decoder);
// Unlock mutex before cleanup
if (using_shared_shmem) {
mtx_unlock(&gpu->data_shmem_mutex);
} else {
virtgpu_shmem_destroy(gpu, shmem);
}
return;
}
void apir_buffer_get_tensor(virtgpu * gpu,
apir_buffer_context_t * buffer_context,
const ggml_tensor * tensor,
void * data,
size_t offset,
size_t size) {
apir_encoder * encoder;
apir_decoder * decoder;
ApirForwardReturnCode ret;
REMOTE_CALL_PREPARE(gpu, encoder, APIR_COMMAND_TYPE_BUFFER_GET_TENSOR);
apir_encode_apir_buffer_host_handle_t(encoder, &buffer_context->host_handle);
apir_encode_ggml_tensor(encoder, tensor);
virtgpu_shmem temp_shmem; // Local storage for large buffers
virtgpu_shmem * shmem = &temp_shmem;
bool using_shared_shmem = false;
if (size <= gpu->data_shmem.mmap_size) {
// Lock mutex before using shared data_shmem buffer
if (mtx_lock(&gpu->data_shmem_mutex) != thrd_success) {
GGML_ABORT(GGML_VIRTGPU "%s: Failed to lock data_shmem mutex", __func__);
}
using_shared_shmem = true;
shmem = &gpu->data_shmem;
} else if (virtgpu_shmem_create(gpu, size, shmem)) {
GGML_ABORT(GGML_VIRTGPU "%s: Couldn't allocate the guest-host shared buffer", __func__);
}
apir_encode_virtgpu_shmem_res_id(encoder, shmem->res_id);
apir_encode_size_t(encoder, &offset);
apir_encode_size_t(encoder, &size);
REMOTE_CALL(gpu, encoder, decoder, ret);
memcpy(data, shmem->mmap_ptr, size);
remote_call_finish(gpu, encoder, decoder);
// Unlock mutex before cleanup
if (using_shared_shmem) {
mtx_unlock(&gpu->data_shmem_mutex);
} else {
virtgpu_shmem_destroy(gpu, shmem);
}
}
bool apir_buffer_cpy_tensor(virtgpu * gpu,
apir_buffer_context_t * buffer_context,
const ggml_tensor * src,
const ggml_tensor * dst) {
apir_encoder * encoder;
apir_decoder * decoder;
ApirForwardReturnCode ret;
REMOTE_CALL_PREPARE(gpu, encoder, APIR_COMMAND_TYPE_BUFFER_CPY_TENSOR);
apir_encode_apir_buffer_host_handle_t(encoder, &buffer_context->host_handle);
apir_encode_ggml_tensor(encoder, src);
apir_encode_ggml_tensor(encoder, dst);
REMOTE_CALL(gpu, encoder, decoder, ret);
bool ret_val;
apir_decode_bool_t(decoder, &ret_val);
remote_call_finish(gpu, encoder, decoder);
return ret_val;
}
void apir_buffer_clear(virtgpu * gpu, apir_buffer_context_t * buffer_context, uint8_t value) {
apir_encoder * encoder;
apir_decoder * decoder;
ApirForwardReturnCode ret;
REMOTE_CALL_PREPARE(gpu, encoder, APIR_COMMAND_TYPE_BUFFER_CLEAR);
apir_encode_apir_buffer_host_handle_t(encoder, &buffer_context->host_handle);
apir_encode_uint8_t(encoder, &value);
REMOTE_CALL(gpu, encoder, decoder, ret);
remote_call_finish(gpu, encoder, decoder);
}
void apir_buffer_free_buffer(virtgpu * gpu, apir_buffer_context_t * buffer_context) {
apir_encoder * encoder;
apir_decoder * decoder;
ApirForwardReturnCode ret;
REMOTE_CALL_PREPARE(gpu, encoder, APIR_COMMAND_TYPE_BUFFER_FREE_BUFFER);
apir_encode_apir_buffer_host_handle_t(encoder, &buffer_context->host_handle);
REMOTE_CALL(gpu, encoder, decoder, ret);
remote_call_finish(gpu, encoder, decoder);
}
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