Halide
device_interface.h
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1 #ifndef HALIDE_DEVICE_INTERFACE_H
2 #define HALIDE_DEVICE_INTERFACE_H
3 
4 #ifndef WEAK
5 #include "runtime_internal.h"
6 #endif
7 
8 extern "C" {
9 
11  // These next two methods are used to reference count the runtime code
12  // these function pointers point to. They should always be initialized
13  // to halide_use_jit_module and halide_release_jit_module and Halide's JIT
14  // arranges for this to reference count the container for the code. In AOT
15  // compilation, these are empty functions which do nothing.
16  void (*use_module)();
17  void (*release_module)();
19  int (*device_free)(void *user_context, struct halide_buffer_t *buf);
20  int (*device_sync)(void *user_context, struct halide_buffer_t *buf);
22  int (*copy_to_host)(void *user_context, struct halide_buffer_t *buf);
26  int (*buffer_copy)(void *user_context, struct halide_buffer_t *src,
27  const struct halide_device_interface_t *dst_device_interface, struct halide_buffer_t *dst);
28  int (*device_crop)(void *user_context,
29  const struct halide_buffer_t *src,
30  struct halide_buffer_t *dst);
31  int (*device_slice)(void *user_context,
32  const struct halide_buffer_t *src,
33  int slice_dim, int slice_pos,
34  struct halide_buffer_t *dst);
36  struct halide_buffer_t *buf);
37  int (*wrap_native)(void *user_context, struct halide_buffer_t *buf, uint64_t handle);
39 };
40 
45 extern WEAK int halide_default_buffer_copy(void *user_context, struct halide_buffer_t *src,
46  const struct halide_device_interface_t *dst_device_interface,
47  struct halide_buffer_t *dst);
48 extern WEAK int halide_default_device_crop(void *user_context, const struct halide_buffer_t *src,
49  struct halide_buffer_t *dst);
50 extern WEAK int halide_default_device_slice(void *user_context, const struct halide_buffer_t *src,
51  int slice_dim, int slice_pos, struct halide_buffer_t *dst);
55 }
56 
57 #endif // HALIDE_DEVICE_INTERFACE_H
halide_device_interface_impl_t::device_malloc
int(* device_malloc)(void *user_context, struct halide_buffer_t *buf)
Definition: device_interface.h:18
halide_device_interface_impl_t::device_free
int(* device_free)(void *user_context, struct halide_buffer_t *buf)
Definition: device_interface.h:19
halide_default_device_crop
WEAK int halide_default_device_crop(void *user_context, const struct halide_buffer_t *src, struct halide_buffer_t *dst)
halide_device_interface_impl_t::copy_to_device
int(* copy_to_device)(void *user_context, struct halide_buffer_t *buf)
Definition: device_interface.h:23
halide_default_device_and_host_free
WEAK int halide_default_device_and_host_free(void *user_context, struct halide_buffer_t *buf, const struct halide_device_interface_t *device_interface)
uint64_t
unsigned __INT64_TYPE__ uint64_t
Definition: runtime_internal.h:19
halide_device_interface_impl_t::device_crop
int(* device_crop)(void *user_context, const struct halide_buffer_t *src, struct halide_buffer_t *dst)
Definition: device_interface.h:28
halide_device_interface_impl_t::buffer_copy
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)
Definition: device_interface.h:26
halide_default_buffer_copy
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)
halide_device_interface_impl_t::release_module
void(* release_module)()
Definition: device_interface.h:17
halide_device_interface_impl_t::device_slice
int(* device_slice)(void *user_context, const struct halide_buffer_t *src, int slice_dim, int slice_pos, struct halide_buffer_t *dst)
Definition: device_interface.h:31
halide_device_interface_impl_t::device_release_crop
int(* device_release_crop)(void *user_context, struct halide_buffer_t *buf)
Definition: device_interface.h:35
halide_device_interface_impl_t::detach_native
int(* detach_native)(void *user_context, struct halide_buffer_t *buf)
Definition: device_interface.h:38
halide_device_interface_impl_t
Definition: device_interface.h:10
halide_default_device_detach_native
WEAK int halide_default_device_detach_native(void *user_context, struct halide_buffer_t *buf)
halide_default_device_and_host_malloc
WEAK int halide_default_device_and_host_malloc(void *user_context, struct halide_buffer_t *buf, const struct halide_device_interface_t *device_interface)
halide_device_interface_impl_t::device_sync
int(* device_sync)(void *user_context, struct halide_buffer_t *buf)
Definition: device_interface.h:20
halide_device_interface_impl_t::device_release
int(* device_release)(void *user_context)
Definition: device_interface.h:21
halide_device_interface_impl_t::wrap_native
int(* wrap_native)(void *user_context, struct halide_buffer_t *buf, uint64_t handle)
Definition: device_interface.h:37
dst
char * dst
Definition: printer.h:32
halide_device_interface_impl_t::device_and_host_free
int(* device_and_host_free)(void *user_context, struct halide_buffer_t *buf)
Definition: device_interface.h:25
halide_buffer_t
The raw representation of an image passed around by generated Halide code.
Definition: HalideRuntime.h:1404
halide_default_device_slice
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)
halide_device_interface_impl_t::device_and_host_malloc
int(* device_and_host_malloc)(void *user_context, struct halide_buffer_t *buf)
Definition: device_interface.h:24
buf
char * buf
Definition: printer.h:32
halide_device_interface_impl_t::copy_to_host
int(* copy_to_host)(void *user_context, struct halide_buffer_t *buf)
Definition: device_interface.h:22
halide_device_interface_t
Each GPU API provides a halide_device_interface_t struct pointing to the code that manages device all...
Definition: HalideRuntime.h:721
halide_device_interface_impl_t::use_module
void(* use_module)()
Definition: device_interface.h:16
halide_default_device_release_crop
WEAK int halide_default_device_release_crop(void *user_context, struct halide_buffer_t *buf)
WEAK
#define WEAK
Definition: runtime_internal.h:50
runtime_internal.h
halide_default_device_wrap_native
WEAK int halide_default_device_wrap_native(void *user_context, struct halide_buffer_t *buf, uint64_t handle)
user_context
void * user_context
Definition: printer.h:33
halide_buffer_t::device_interface
const struct halide_device_interface_t * device_interface
The interface used to interpret the above handle.
Definition: HalideRuntime.h:1409