1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2014-2018 Broadcom
* Copyright © 2019 Collabora ltd.
*/
#ifndef _PANFROST_DRM_H_
#define _PANFROST_DRM_H_
#include "drm.h"
#if defined(__cplusplus)
extern "C" {
#endif
#define DRM_PANFROST_SUBMIT 0x00
#define DRM_PANFROST_WAIT_BO 0x01
#define DRM_PANFROST_CREATE_BO 0x02
#define DRM_PANFROST_MMAP_BO 0x03
#define DRM_PANFROST_GET_PARAM 0x04
#define DRM_PANFROST_GET_BO_OFFSET 0x05
#define DRM_PANFROST_PERFCNT_ENABLE 0x06
#define DRM_PANFROST_PERFCNT_DUMP 0x07
#define DRM_PANFROST_MADVISE 0x08
#define DRM_IOCTL_PANFROST_SUBMIT DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_SUBMIT, struct drm_panfrost_submit)
#define DRM_IOCTL_PANFROST_WAIT_BO DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_WAIT_BO, struct drm_panfrost_wait_bo)
#define DRM_IOCTL_PANFROST_CREATE_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_CREATE_BO, struct drm_panfrost_create_bo)
#define DRM_IOCTL_PANFROST_MMAP_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_MMAP_BO, struct drm_panfrost_mmap_bo)
#define DRM_IOCTL_PANFROST_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_GET_PARAM, struct drm_panfrost_get_param)
#define DRM_IOCTL_PANFROST_GET_BO_OFFSET DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_GET_BO_OFFSET, struct drm_panfrost_get_bo_offset)
#define DRM_IOCTL_PANFROST_MADVISE DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_MADVISE, struct drm_panfrost_madvise)
/*
* Unstable ioctl(s): only exposed when the unsafe unstable_ioctls module
* param is set to true.
* All these ioctl(s) are subject to deprecation, so please don't rely on
* them for anything but debugging purpose.
*/
#define DRM_IOCTL_PANFROST_PERFCNT_ENABLE DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_PERFCNT_ENABLE, struct drm_panfrost_perfcnt_enable)
#define DRM_IOCTL_PANFROST_PERFCNT_DUMP DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_PERFCNT_DUMP, struct drm_panfrost_perfcnt_dump)
#define PANFROST_JD_REQ_FS (1 << 0)
/**
* struct drm_panfrost_submit - ioctl argument for submitting commands to the 3D
* engine.
*
* This asks the kernel to have the GPU execute a render command list.
*/
struct drm_panfrost_submit {
/** Address to GPU mapping of job descriptor */
__u64 jc;
/** An optional array of sync objects to wait on before starting this job. */
__u64 in_syncs;
/** Number of sync objects to wait on before starting this job. */
__u32 in_sync_count;
/** An optional sync object to place the completion fence in. */
__u32 out_sync;
/** Pointer to a u32 array of the BOs that are referenced by the job. */
__u64 bo_handles;
/** Number of BO handles passed in (size is that times 4). */
__u32 bo_handle_count;
/** A combination of PANFROST_JD_REQ_* */
__u32 requirements;
};
/**
* struct drm_panfrost_wait_bo - ioctl argument for waiting for
* completion of the last DRM_PANFROST_SUBMIT on a BO.
*
* This is useful for cases where multiple processes might be
* rendering to a BO and you want to wait for all rendering to be
* completed.
*/
struct drm_panfrost_wait_bo {
__u32 handle;
__u32 pad;
__s64 timeout_ns; /* absolute */
};
#define PANFROST_BO_NOEXEC 1
#define PANFROST_BO_HEAP 2
/**
* struct drm_panfrost_create_bo - ioctl argument for creating Panfrost BOs.
*
* There are currently no values for the flags argument, but it may be
* used in a future extension.
*/
struct drm_panfrost_create_bo {
__u32 size;
__u32 flags;
/** Returned GEM handle for the BO. */
__u32 handle;
/* Pad, must be zero-filled. */
__u32 pad;
/**
* Returned offset for the BO in the GPU address space. This offset
* is private to the DRM fd and is valid for the lifetime of the GEM
* handle.
*
* This offset value will always be nonzero, since various HW
* units treat 0 specially.
*/
__u64 offset;
};
/**
* struct drm_panfrost_mmap_bo - ioctl argument for mapping Panfrost BOs.
*
* This doesn't actually perform an mmap. Instead, it returns the
* offset you need to use in an mmap on the DRM device node. This
* means that tools like valgrind end up knowing about the mapped
* memory.
*
* There are currently no values for the flags argument, but it may be
* used in a future extension.
*/
struct drm_panfrost_mmap_bo {
/** Handle for the object being mapped. */
__u32 handle;
__u32 flags;
/** offset into the drm node to use for subsequent mmap call. */
__u64 offset;
};
enum drm_panfrost_param {
DRM_PANFROST_PARAM_GPU_PROD_ID,
DRM_PANFROST_PARAM_GPU_REVISION,
DRM_PANFROST_PARAM_SHADER_PRESENT,
DRM_PANFROST_PARAM_TILER_PRESENT,
DRM_PANFROST_PARAM_L2_PRESENT,
DRM_PANFROST_PARAM_STACK_PRESENT,
DRM_PANFROST_PARAM_AS_PRESENT,
DRM_PANFROST_PARAM_JS_PRESENT,
DRM_PANFROST_PARAM_L2_FEATURES,
DRM_PANFROST_PARAM_CORE_FEATURES,
DRM_PANFROST_PARAM_TILER_FEATURES,
DRM_PANFROST_PARAM_MEM_FEATURES,
DRM_PANFROST_PARAM_MMU_FEATURES,
DRM_PANFROST_PARAM_THREAD_FEATURES,
DRM_PANFROST_PARAM_MAX_THREADS,
DRM_PANFROST_PARAM_THREAD_MAX_WORKGROUP_SZ,
DRM_PANFROST_PARAM_THREAD_MAX_BARRIER_SZ,
DRM_PANFROST_PARAM_COHERENCY_FEATURES,
DRM_PANFROST_PARAM_TEXTURE_FEATURES0,
DRM_PANFROST_PARAM_TEXTURE_FEATURES1,
DRM_PANFROST_PARAM_TEXTURE_FEATURES2,
DRM_PANFROST_PARAM_TEXTURE_FEATURES3,
DRM_PANFROST_PARAM_JS_FEATURES0,
DRM_PANFROST_PARAM_JS_FEATURES1,
DRM_PANFROST_PARAM_JS_FEATURES2,
DRM_PANFROST_PARAM_JS_FEATURES3,
DRM_PANFROST_PARAM_JS_FEATURES4,
DRM_PANFROST_PARAM_JS_FEATURES5,
DRM_PANFROST_PARAM_JS_FEATURES6,
DRM_PANFROST_PARAM_JS_FEATURES7,
DRM_PANFROST_PARAM_JS_FEATURES8,
DRM_PANFROST_PARAM_JS_FEATURES9,
DRM_PANFROST_PARAM_JS_FEATURES10,
DRM_PANFROST_PARAM_JS_FEATURES11,
DRM_PANFROST_PARAM_JS_FEATURES12,
DRM_PANFROST_PARAM_JS_FEATURES13,
DRM_PANFROST_PARAM_JS_FEATURES14,
DRM_PANFROST_PARAM_JS_FEATURES15,
DRM_PANFROST_PARAM_NR_CORE_GROUPS,
DRM_PANFROST_PARAM_THREAD_TLS_ALLOC,
};
struct drm_panfrost_get_param {
__u32 param;
__u32 pad;
__u64 value;
};
/**
* Returns the offset for the BO in the GPU address space for this DRM fd.
* This is the same value returned by drm_panfrost_create_bo, if that was called
* from this DRM fd.
*/
struct drm_panfrost_get_bo_offset {
__u32 handle;
__u32 pad;
__u64 offset;
};
struct drm_panfrost_perfcnt_enable {
__u32 enable;
/*
* On bifrost we have 2 sets of counters, this parameter defines the
* one to track.
*/
__u32 counterset;
};
struct drm_panfrost_perfcnt_dump {
__u64 buf_ptr;
};
/* madvise provides a way to tell the kernel in case a buffers contents
* can be discarded under memory pressure, which is useful for userspace
* bo cache where we want to optimistically hold on to buffer allocate
* and potential mmap, but allow the pages to be discarded under memory
* pressure.
*
* Typical usage would involve madvise(DONTNEED) when buffer enters BO
* cache, and madvise(WILLNEED) if trying to recycle buffer from BO cache.
* In the WILLNEED case, 'retained' indicates to userspace whether the
* backing pages still exist.
*/
#define PANFROST_MADV_WILLNEED 0 /* backing pages are needed, status returned in 'retained' */
#define PANFROST_MADV_DONTNEED 1 /* backing pages not needed */
struct drm_panfrost_madvise {
__u32 handle; /* in, GEM handle */
__u32 madv; /* in, PANFROST_MADV_x */
__u32 retained; /* out, whether backing store still exists */
};
#if defined(__cplusplus)
}
#endif
#endif /* _PANFROST_DRM_H_ */
|
