Halide 22.0.0 Halide compiler and libraries

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HalideRuntimeHexagonDma.h
Go to the documentation of this file.
1#ifndef HALIDE_HALIDERUNTIMEHEXAGONDMA_H
2#define HALIDE_HALIDERUNTIMEHEXAGONDMA_H
3
4/** \file
5 * Routines specific to the Halide Hexagon DMA host-side runtime.
6 */
7
8// Don't include HalideRuntime.h if the contents of it were already pasted into a generated header above this one
9#ifndef HALIDE_HALIDERUNTIME_H
10
11#include "HalideRuntime.h"
12
13#endif
14
15// Don't include HalideRuntimeHexagonHost.h if the contents of it were already pasted into a generated header above this one
16#ifndef HALIDE_HALIDERUNTIMEHEXAGONHOST_H
17
18#include "HalideRuntimeHexagonHost.h"
19
20#endif
21
22#ifdef __cplusplus
23 extern "C" {
24#endif
25
26/**
27 * \defgroup rt_hexagon_dma Halide Hexagon DMA runtime
28 * @{
29 */
30
31/**
32 * Image Formats to prepare the application for DMA Transfer
33 */
34 typedef enum {
35 halide_hexagon_fmt_RawData,
36 halide_hexagon_fmt_NV12,
37 halide_hexagon_fmt_NV12_Y,
38 halide_hexagon_fmt_NV12_UV,
39 halide_hexagon_fmt_P010,
40 halide_hexagon_fmt_P010_Y,
41 halide_hexagon_fmt_P010_UV,
42 halide_hexagon_fmt_TP10,
43 halide_hexagon_fmt_TP10_Y,
44 halide_hexagon_fmt_TP10_UV,
45 halide_hexagon_fmt_NV124R,
46 halide_hexagon_fmt_NV124R_Y,
47 halide_hexagon_fmt_NV124R_UV
48} halide_hexagon_image_fmt_t;
49
50 extern const struct halide_device_interface_t *halide_hexagon_dma_device_interface();
51
52/** This API is used to set up the DMA device interface to be used for DMA transfer. This also internally
53 * creates the DMA device handle and populates all the Buffer related parameters (width, height, stride)
54 * to be used for DMA configuration.
55 */
56 extern int halide_hexagon_dma_device_wrap_native(void *user_context, struct halide_buffer_t *buf,
57 uint64_t mem);
58
59/** Detach the Input/Output Buffer from DMA device handle and deallocate the DMA device handle buffer allocation
60 * This API also frees up the DMA device and makes it available for another usage.
61 */
62 extern int halide_hexagon_dma_device_detach_native(void *user_context, struct halide_buffer_t *buf);
63
64/** This API will allocate a DMA Engine needed for DMA read/write. This is the first step Before
65 * a buffer can be used in a copy operation (i.e. a DMA read/write operation).
66 */
67 extern int halide_hexagon_dma_allocate_engine(void *user_context, void **dma_engine);
68
69/** This API free up the allocated DMA engine. This need to be called after a user program ends
70 * all the DMA Operations and make it available for subsequent DMA transfers */
71 extern int halide_hexagon_dma_deallocate_engine(void *user_context, void *dma_engine);
72
73/** This API Prepares a buffer for DMA Read Operation. This will setup the DMA format, direction (read).
74 * Will also make necessary adjustments to the DMA frame parameters based on Image format provided.
75 */
76 extern int halide_hexagon_dma_prepare_for_copy_to_host(void *user_context, struct halide_buffer_t *buf,
77 void *dma_engine, bool is_ubwc, halide_hexagon_image_fmt_t fmt);
78
79/** This API Prepares a buffer for DMA Write Operation. This will setup the DMA format, direction (write).
80 * Will also make necessary adjustments to the DMA frame parameters based on Image format provided.
81 */
82 extern int halide_hexagon_dma_prepare_for_copy_to_device(void *user_context, struct halide_buffer_t *buf,
83 void *dma_engine, bool is_ubwc,
84 halide_hexagon_image_fmt_t fmt);
85
86/** This API is used to frees up the DMA Resources associated with the buffer.
87 * TODO: Currently this API is a dummy as all the necessary freeing is done in an another API.
88 * This will be used in future.
89 */
90 extern int halide_hexagon_dma_unprepare(void *user_context, struct halide_buffer_t *buf);
91
92/** This API is used to setup the hexagon Operation modes. We will setup the necessary Operating frequency
93 * based on the power mode chosen. Check the structure halide_hexagon_power_mode_t defined in Halide HalideRuntimeHexagonHost.h
94 * for the supported power modes.
95 */
96 extern int halide_hexagon_dma_power_mode_voting(void *user_context, halide_hexagon_power_mode_t cornercase);
97
98///@}
99
100#ifdef __cplusplus
101} // End extern "C"
102#endif
103
104#endif // HALIDE_HALIDERUNTIMEHEXAGONDMA_H
HalideRuntime.h
This file declares the routines used by Halide internally in its runtime.
HalideRuntimeHexagonHost.h
Routines specific to the Halide Hexagon host-side runtime.
halide_hexagon_power_mode_t
halide_hexagon_power_mode_t
Power modes for Hexagon.
Definition HalideRuntimeHexagonHost.h:69
halide_hexagon_dma_prepare_for_copy_to_host
int halide_hexagon_dma_prepare_for_copy_to_host(void *user_context, struct halide_buffer_t *buf, void *dma_engine, bool is_ubwc, halide_hexagon_image_fmt_t fmt)
This API Prepares a buffer for DMA Read Operation.
halide_hexagon_dma_power_mode_voting
int halide_hexagon_dma_power_mode_voting(void *user_context, halide_hexagon_power_mode_t cornercase)
This API is used to setup the hexagon Operation modes.
halide_hexagon_image_fmt_t
halide_hexagon_image_fmt_t
Image Formats to prepare the application for DMA Transfer.
Definition HalideRuntimeHexagonDma.h:34
halide_hexagon_dma_device_detach_native
int halide_hexagon_dma_device_detach_native(void *user_context, struct halide_buffer_t *buf)
Detach the Input/Output Buffer from DMA device handle and deallocate the DMA device handle buffer all...
halide_hexagon_dma_device_interface
const struct halide_device_interface_t * halide_hexagon_dma_device_interface()
halide_hexagon_dma_prepare_for_copy_to_device
int halide_hexagon_dma_prepare_for_copy_to_device(void *user_context, struct halide_buffer_t *buf, void *dma_engine, bool is_ubwc, halide_hexagon_image_fmt_t fmt)
This API Prepares a buffer for DMA Write Operation.
halide_hexagon_dma_device_wrap_native
int halide_hexagon_dma_device_wrap_native(void *user_context, struct halide_buffer_t *buf, uint64_t mem)
This API is used to set up the DMA device interface to be used for DMA transfer.
halide_hexagon_dma_allocate_engine
int halide_hexagon_dma_allocate_engine(void *user_context, void **dma_engine)
This API will allocate a DMA Engine needed for DMA read/write.
halide_hexagon_dma_deallocate_engine
int halide_hexagon_dma_deallocate_engine(void *user_context, void *dma_engine)
This API free up the allocated DMA engine.
halide_hexagon_dma_unprepare
int halide_hexagon_dma_unprepare(void *user_context, struct halide_buffer_t *buf)
This API is used to frees up the DMA Resources associated with the buffer.
halide_hexagon_fmt_NV124R_Y
@ halide_hexagon_fmt_NV124R_Y
Definition HalideRuntimeHexagonDma.h:46
halide_hexagon_fmt_TP10_Y
@ halide_hexagon_fmt_TP10_Y
Definition HalideRuntimeHexagonDma.h:43
halide_hexagon_fmt_RawData
@ halide_hexagon_fmt_RawData
Definition HalideRuntimeHexagonDma.h:35
halide_hexagon_fmt_NV124R_UV
@ halide_hexagon_fmt_NV124R_UV
Definition HalideRuntimeHexagonDma.h:47
halide_hexagon_fmt_NV12
@ halide_hexagon_fmt_NV12
Definition HalideRuntimeHexagonDma.h:36
halide_hexagon_fmt_TP10
@ halide_hexagon_fmt_TP10
Definition HalideRuntimeHexagonDma.h:42
halide_hexagon_fmt_P010_UV
@ halide_hexagon_fmt_P010_UV
Definition HalideRuntimeHexagonDma.h:41
halide_hexagon_fmt_NV124R
@ halide_hexagon_fmt_NV124R
Definition HalideRuntimeHexagonDma.h:45
halide_hexagon_fmt_NV12_Y
@ halide_hexagon_fmt_NV12_Y
Definition HalideRuntimeHexagonDma.h:37
halide_hexagon_fmt_NV12_UV
@ halide_hexagon_fmt_NV12_UV
Definition HalideRuntimeHexagonDma.h:38
halide_hexagon_fmt_P010
@ halide_hexagon_fmt_P010
Definition HalideRuntimeHexagonDma.h:39
halide_hexagon_fmt_P010_Y
@ halide_hexagon_fmt_P010_Y
Definition HalideRuntimeHexagonDma.h:40
halide_hexagon_fmt_TP10_UV
@ halide_hexagon_fmt_TP10_UV
Definition HalideRuntimeHexagonDma.h:44
uint64_t
unsigned __INT64_TYPE__ uint64_t
Definition runtime_internal.h:23
halide_buffer_t
The raw representation of an image passed around by generated Halide code.
Definition HalideRuntime.h:1569
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:797
user_context
void * user_context
Definition vulkan_resources.h:178