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#include "backend-dispatched.h"
#include "backend-virgl-apir.h"
#include "ggml-backend-impl.h"
#include "ggml-backend.h"
#include "ggml-impl.h"
#include "shared/apir_backend.h"
#include <cstdint>
uint32_t backend_backend_graph_compute(apir_encoder * enc, apir_decoder * dec, virgl_apir_context * ctx) {
GGML_UNUSED(ctx);
GGML_UNUSED(enc);
static bool async_backend_initialized = false;
static bool async_backend;
if (!async_backend_initialized) {
ggml_backend_dev_props props;
dev->iface.get_props(dev, &props);
async_backend = props.caps.async;
async_backend_initialized = true;
}
uint32_t shmem_res_id;
apir_decode_virtgpu_shmem_res_id(dec, &shmem_res_id);
const void * shmem_data = ctx->iface->get_shmem_ptr(ctx->ctx_id, shmem_res_id);
if (!shmem_data) {
GGML_LOG_ERROR(GGML_VIRTGPU_BCK "%s: Couldn't get the shmem addr from virgl\n", __func__);
apir_decoder_set_fatal(dec);
return 1;
}
size_t cgraph_size;
apir_decode_size_t(dec, &cgraph_size);
apir_decoder secondary_dec = apir_new_decoder((const char *) shmem_data, cgraph_size);
ggml_cgraph * cgraph = apir_decode_ggml_cgraph(&secondary_dec, cgraph_size);
ggml_status status;
#if APIR_BACKEND_CHECK_SUPPORTS_OP == 1
for (int idx = 0; idx < cgraph->n_nodes; idx++) {
ggml_tensor * op = ggml_graph_node(cgraph, idx);
if (dev->iface.supports_op(dev, op)) {
continue;
}
GGML_LOG_ERROR(GGML_VIRTGPU_BCK "%s: Graph node %d (%s) not supported by the backend\n", idx, ggml_op_desc(op));
status = GGML_STATUS_ABORTED;
apir_encode_ggml_status(enc, &status);
return 0;
}
#endif
status = bck->iface.graph_compute(bck, cgraph);
if (async_backend) {
bck->iface.synchronize(bck);
}
apir_encode_ggml_status(enc, &status);
return 0;
}
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