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1 | /* workitems.h -- Types for context data passed as hidden parameters to special |
2 | built-ins. | |
3 | ||
a5544970 | 4 | Copyright (C) 2015-2019 Free Software Foundation, Inc. |
5fd1486c PJ |
5 | Contributed by Pekka Jaaskelainen <pekka.jaaskelainen@parmance.com> |
6 | for General Processor Tech. | |
7 | ||
8 | Permission is hereby granted, free of charge, to any person obtaining a | |
9 | copy of this software and associated documentation files | |
10 | (the "Software"), to deal in the Software without restriction, including | |
11 | without limitation the rights to use, copy, modify, merge, publish, | |
12 | distribute, sublicense, and/or sell copies of the Software, and to | |
13 | permit persons to whom the Software is furnished to do so, subject to | |
14 | the following conditions: | |
15 | ||
16 | The above copyright notice and this permission notice shall be included | |
17 | in all copies or substantial portions of the Software. | |
18 | ||
19 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
20 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
21 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
22 | IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, | |
23 | DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | |
24 | OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE | |
25 | USE OR OTHER DEALINGS IN THE SOFTWARE. | |
26 | */ | |
27 | ||
28 | #ifndef PHSA_RT_WORKITEMS_H | |
29 | #define PHSA_RT_WORKITEMS_H | |
30 | ||
31 | /* As the simple fibers implementation relies only on ucontext, we can | |
32 | assume is found by default as it is part of glibc. However, for partial | |
33 | HSAIL support on platforms without having it available, the following define | |
34 | can be undefined. */ | |
35 | #define HAVE_FIBERS | |
36 | ||
37 | #ifdef HAVE_FIBERS | |
38 | #include "fibers.h" | |
39 | #endif | |
40 | ||
41 | #include <stdint.h> | |
42 | #include "phsa-rt.h" | |
43 | ||
44 | /* Data identifying a single work-group instance. */ | |
45 | ||
46 | typedef struct | |
47 | { | |
5fd1486c PJ |
48 | /* This is 1 in case there are more work groups to execute. |
49 | If 0, the work-item threads should finish themselves. */ | |
50 | int more_wgs; | |
51 | ||
52 | /* If the local size does not evenly divide the grid size, will have | |
53 | leftover WIs in the last execution. */ | |
54 | int leftover_wg; | |
55 | int last_wg; | |
56 | ||
57 | /* (Flat) pointer to the beginning of the group segment allocated | |
58 | to the work-group. */ | |
59 | void *group_base_ptr; | |
60 | ||
d4b7f2ee PJ |
61 | /* The offset in the group memory for the kernel local group variables. |
62 | To support module scope group variables, there might be need to preseve | |
63 | room for them in the beginning of the group segment. */ | |
64 | uint32_t initial_group_offset; | |
65 | ||
5fd1486c PJ |
66 | /* Similarly to the private segment that gets space allocated for all |
67 | WIs in the work-group. */ | |
68 | void *private_base_ptr; | |
69 | uint32_t private_segment_total_size; | |
70 | ||
71 | /* The first flat address of the group segment allocated for | |
72 | the given work group. */ | |
73 | uint64_t group_segment_base_addr; | |
74 | ||
75 | /* Offset from the beginning of the private segment to the start of | |
76 | the previously allocated chunk of dynamic work-item memory (alloca) | |
77 | by any WI in the WG. | |
78 | ||
79 | Initially set to private_segment_total_size to denote no dynamic | |
80 | allocations have been made. The dynamic allocations are done downwards | |
81 | from the private segment end. */ | |
82 | uint32_t alloca_stack_p; | |
83 | /* The position of the first word in the current function's alloca | |
84 | stack frame. Initialized to point outside the private segment. */ | |
85 | uint32_t alloca_frame_p; | |
86 | ||
080dc243 PJ |
87 | /* The group id of the currently executed WG. This is for fiber based |
88 | execution. The group ids are duplicated also to the per WI context | |
89 | struct for simplified single pointer access in the GCCBRIG produced | |
90 | code. | |
91 | */ | |
92 | ||
93 | uint32_t x; | |
94 | uint32_t y; | |
95 | uint32_t z; | |
96 | ||
5fd1486c PJ |
97 | } PHSAWorkGroup; |
98 | ||
99 | /* Data identifying a single work-item, passed to the work-item thread in case | |
100 | of a fiber based work-group execution. */ | |
101 | ||
102 | typedef struct | |
103 | { | |
080dc243 PJ |
104 | /* NOTE: These members STARTing here should not be moved as they are |
105 | accessed directly by code emitted by BRIG FE. */ | |
106 | ||
107 | /* The local id of the current WI. */ | |
108 | ||
109 | uint32_t x; | |
110 | uint32_t y; | |
111 | uint32_t z; | |
112 | ||
113 | /* The group id of the currently executed WG. */ | |
114 | ||
115 | uint32_t group_x; | |
116 | uint32_t group_y; | |
117 | uint32_t group_z; | |
118 | ||
119 | /* The local size of a complete WG. */ | |
120 | ||
121 | uint32_t wg_size_x; | |
122 | uint32_t wg_size_y; | |
123 | uint32_t wg_size_z; | |
124 | ||
125 | /* The local size of the current WG. */ | |
126 | ||
127 | uint32_t cur_wg_size_x; | |
128 | uint32_t cur_wg_size_y; | |
129 | uint32_t cur_wg_size_z; | |
130 | ||
131 | /* NOTE: Fixed members END here. */ | |
132 | ||
5fd1486c PJ |
133 | PHSAKernelLaunchData *launch_data; |
134 | /* Identifies and keeps book of the currently executed WG of the WI swarm. */ | |
135 | volatile PHSAWorkGroup *wg; | |
5fd1486c PJ |
136 | #ifdef HAVE_FIBERS |
137 | fiber_t fiber; | |
138 | #endif | |
080dc243 | 139 | } __attribute__((packed)) PHSAWorkItem; |
5fd1486c PJ |
140 | |
141 | ||
142 | #endif |