Halide 19.0.0
Halide compiler and libraries
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device_interface.h
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1#ifndef HALIDE_RUNTIME_DEVICE_INTERFACE_H
2#define HALIDE_RUNTIME_DEVICE_INTERFACE_H
3
4#include "HalideRuntime.h"
5
6extern "C" {
7
9 // These next two methods are used to reference count the runtime code
10 // these function pointers point to. They should always be initialized
11 // to halide_use_jit_module and halide_release_jit_module and Halide's JIT
12 // arranges for this to reference count the container for the code. In AOT
13 // compilation, these are empty functions which do nothing.
14 void (*use_module)();
15 void (*release_module)();
16 int (*device_malloc)(void *user_context, struct halide_buffer_t *buf);
17 int (*device_free)(void *user_context, struct halide_buffer_t *buf);
18 int (*device_sync)(void *user_context, struct halide_buffer_t *buf);
19 int (*device_release)(void *user_context);
20 int (*copy_to_host)(void *user_context, struct halide_buffer_t *buf);
21 int (*copy_to_device)(void *user_context, struct halide_buffer_t *buf);
22 int (*device_and_host_malloc)(void *user_context, struct halide_buffer_t *buf);
23 int (*device_and_host_free)(void *user_context, struct halide_buffer_t *buf);
24 int (*buffer_copy)(void *user_context, struct halide_buffer_t *src,
25 const struct halide_device_interface_t *dst_device_interface, struct halide_buffer_t *dst);
26 int (*device_crop)(void *user_context,
27 const struct halide_buffer_t *src,
28 struct halide_buffer_t *dst);
29 int (*device_slice)(void *user_context,
30 const struct halide_buffer_t *src,
31 int slice_dim, int slice_pos,
32 struct halide_buffer_t *dst);
33 int (*device_release_crop)(void *user_context,
34 struct halide_buffer_t *buf);
35 int (*wrap_native)(void *user_context, struct halide_buffer_t *buf, uint64_t handle);
36 int (*detach_native)(void *user_context, struct halide_buffer_t *buf);
37};
38
39extern WEAK int halide_default_device_and_host_malloc(void *user_context, struct halide_buffer_t *buf,
41extern WEAK int halide_default_device_and_host_free(void *user_context, struct halide_buffer_t *buf,
43extern WEAK int halide_default_buffer_copy(void *user_context, struct halide_buffer_t *src,
44 const struct halide_device_interface_t *dst_device_interface,
45 struct halide_buffer_t *dst);
46extern WEAK int halide_default_device_crop(void *user_context, const struct halide_buffer_t *src,
47 struct halide_buffer_t *dst);
48extern WEAK int halide_default_device_slice(void *user_context, const struct halide_buffer_t *src,
49 int slice_dim, int slice_pos, struct halide_buffer_t *dst);
50extern WEAK int halide_default_device_release_crop(void *user_context, struct halide_buffer_t *buf);
51extern WEAK int halide_default_device_wrap_native(void *user_context, struct halide_buffer_t *buf, uint64_t handle);
52extern WEAK int halide_default_device_detach_native(void *user_context, struct halide_buffer_t *buf);
53}
54
55#endif // HALIDE_RUNTIME_DEVICE_INTERFACE_H
This file declares the routines used by Halide internally in its runtime.
WEAK int halide_default_device_and_host_malloc(void *user_context, struct halide_buffer_t *buf, const struct halide_device_interface_t *device_interface)
WEAK int halide_default_device_and_host_free(void *user_context, struct halide_buffer_t *buf, const struct halide_device_interface_t *device_interface)
WEAK int halide_default_device_wrap_native(void *user_context, struct halide_buffer_t *buf, uint64_t handle)
WEAK int halide_default_device_detach_native(void *user_context, struct halide_buffer_t *buf)
WEAK int halide_default_device_crop(void *user_context, const struct halide_buffer_t *src, struct halide_buffer_t *dst)
WEAK int halide_default_buffer_copy(void *user_context, struct halide_buffer_t *src, const struct halide_device_interface_t *dst_device_interface, struct halide_buffer_t *dst)
WEAK int halide_default_device_release_crop(void *user_context, struct halide_buffer_t *buf)
WEAK int halide_default_device_slice(void *user_context, const struct halide_buffer_t *src, int slice_dim, int slice_pos, struct halide_buffer_t *dst)
unsigned __INT64_TYPE__ uint64_t
#define WEAK
The raw representation of an image passed around by generated Halide code.
const struct halide_device_interface_t * device_interface
The interface used to interpret the above handle.
int(* wrap_native)(void *user_context, struct halide_buffer_t *buf, uint64_t handle)
int(* device_slice)(void *user_context, const struct halide_buffer_t *src, int slice_dim, int slice_pos, struct halide_buffer_t *dst)
int(* device_free)(void *user_context, struct halide_buffer_t *buf)
int(* device_release_crop)(void *user_context, struct halide_buffer_t *buf)
int(* device_crop)(void *user_context, const struct halide_buffer_t *src, struct halide_buffer_t *dst)
int(* detach_native)(void *user_context, struct halide_buffer_t *buf)
int(* device_and_host_malloc)(void *user_context, struct halide_buffer_t *buf)
int(* buffer_copy)(void *user_context, struct halide_buffer_t *src, const struct halide_device_interface_t *dst_device_interface, struct halide_buffer_t *dst)
int(* copy_to_host)(void *user_context, struct halide_buffer_t *buf)
int(* device_sync)(void *user_context, struct halide_buffer_t *buf)
int(* copy_to_device)(void *user_context, struct halide_buffer_t *buf)
int(* device_release)(void *user_context)
int(* device_malloc)(void *user_context, struct halide_buffer_t *buf)
int(* device_and_host_free)(void *user_context, struct halide_buffer_t *buf)
Each GPU API provides a halide_device_interface_t struct pointing to the code that manages device all...