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wasi-nn: fix tensor_data abi for wasi_ephemeral_nn (#4379)

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it's "(list u8)" in the witx definition.

the new definition matches both of our own host definition
(struct tensor_wasm) and wasmtime.

cf. https://github.com/bytecodealliance/wasm-micro-runtime/issues/4352
This commit is contained in:
YAMAMOTO Takashi 2025-06-19 15:18:36 +09:00 committed by GitHub
parent a29f3943ef
commit aa53d648fa
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4 changed files with 14 additions and 6 deletions
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7
core/iwasm/libraries/wasi-nn/include/wasi_nn.h
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@ -108,14 +108,13 @@ WASI_NN_NAME(compute)
WASI_NN_ERROR_TYPE
WASI_NN_NAME(get_output)
(WASI_NN_NAME(graph_execution_context) ctx, uint32_t index,
WASI_NN_NAME(tensor_data) output_tensor, uint32_t output_tensor_max_size,
uint8_t *output_tensor, uint32_t output_tensor_max_size,
uint32_t *output_tensor_size) WASI_NN_IMPORT("get_output");
#else
WASI_NN_ERROR_TYPE
WASI_NN_NAME(get_output)
(graph_execution_context ctx, uint32_t index,
WASI_NN_NAME(tensor_data) output_tensor, uint32_t *output_tensor_size)
WASI_NN_IMPORT("get_output");
(graph_execution_context ctx, uint32_t index, uint8_t *output_tensor,
uint32_t *output_tensor_size) WASI_NN_IMPORT("get_output");
#endif
#endif

7
core/iwasm/libraries/wasi-nn/include/wasi_nn_types.h
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@ -99,7 +99,14 @@ typedef enum {
// 4-byte f32 elements would have a data array of length 16). Naturally, this
// representation requires some knowledge of how to lay out data in
// memory--e.g., using row-major ordering--and could perhaps be improved.
#if WASM_ENABLE_WASI_EPHEMERAL_NN != 0 && defined(__wasm__)
typedef struct {
uint8_t *buf;
uint32_t size;
} WASI_NN_NAME(tensor_data);
#else
typedef uint8_t *WASI_NN_NAME(tensor_data);
#endif
// A tensor.
typedef struct {

3
wamr-wasi-extensions/samples/nn-cli/main.c
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@ -266,7 +266,8 @@ set_input(char *options)
wasi_ephemeral_nn_error nnret;
wasi_ephemeral_nn_graph_execution_context c =
map_get(&contexts, context_id);
tensor.data = buf;
tensor.data.buf = buf;
tensor.data.size = sz;
nnret = wasi_ephemeral_nn_set_input(c, idx, &tensor);
unmap_file(buf, sz);
if (nnret != wasi_ephemeral_nn_error_success) {

3
wamr-wasi-extensions/samples/nn/app.c
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@ -147,7 +147,8 @@ main(int argc, char **argv)
wasi_ephemeral_nn_tensor tensor = {
.dimensions = { .buf = (uint32_t[]){1, 3, 224, 224,}, .size = 4, },
.type = wasi_ephemeral_nn_type_fp32,
.data = tensordata,
.data.buf = tensordata,
.data.size = tensordatasz,
};
nnret = wasi_ephemeral_nn_set_input(ctx, 0, &tensor);
unmap_file(tensordata, tensordatasz);