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111
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1 /* phsa-rt.h -- Data structures and functions of the PHSA device side runtime
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2 scheduler, and HSAIL built-ins.
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3
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131
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4 Copyright (C) 2015-2018 Free Software Foundation, Inc.
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111
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5 Contributed by Pekka Jaaskelainen <pekka.jaaskelainen@parmance.com>
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6 for General Processor Tech.
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7
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8 Permission is hereby granted, free of charge, to any person obtaining a
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9 copy of this software and associated documentation files
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10 (the "Software"), to deal in the Software without restriction, including
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11 without limitation the rights to use, copy, modify, merge, publish,
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12 distribute, sublicense, and/or sell copies of the Software, and to
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13 permit persons to whom the Software is furnished to do so, subject to
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14 the following conditions:
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15
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16 The above copyright notice and this permission notice shall be included
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17 in all copies or substantial portions of the Software.
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18
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19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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20 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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21 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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22 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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23 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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24 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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25 USE OR OTHER DEALINGS IN THE SOFTWARE.
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26 */
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27
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28 #ifndef PHSA_RT_H
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29 #define PHSA_RT_H
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30
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31 #include <stdbool.h>
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32 #include <stdint.h>
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33 #include "hsa.h"
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34
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35 #define PHSA_MAX_WG_SIZE 1024 * 10
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36
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37 /* Pointer type for the public facing kernel launcher function generated
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38 by gccbrig. This launches the actual kernel for all work groups and
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39 work items in the grid. */
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40 typedef void (*gccbrigKernelLauncherFunc) (void *context, void *);
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41
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42 /* Pointer type for kernel functions produced by gccbrig from the HSAIL.
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43 This is private from outside the device binary and only called by
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44 the launcher. */
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45 typedef void (*gccbrigKernelFunc) (unsigned char *, void *, void *, uint32_t,
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46 void *);
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47
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48 /* Context data that is passed to the kernel function, initialized
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49 by the runtime to the current launch information. The data is
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50 used by different id functions etc.
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51
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52 The struct is used by both the launcher and the targeted device,
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53 thus the fields must have the same alignment/padding in both sides.
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54 */
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55 typedef struct
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56 {
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57 /* Data set by the HSA Runtime's kernel launcher. */
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58 hsa_kernel_dispatch_packet_t *dp;
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59
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60 size_t packet_id;
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61
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62 /* Data set by the device-side launcher. */
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63 gccbrigKernelFunc kernel;
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64
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65 /* The range of a work groups this dispatch should execute. */
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66 size_t wg_min_x;
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67 size_t wg_min_y;
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68 size_t wg_min_z;
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69
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70 size_t wg_max_x;
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71 size_t wg_max_y;
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72 size_t wg_max_z;
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73
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74 /* The barrier used to synch the work-items before executing a new WG. */
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75 void *wg_start_barrier;
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76
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77 /* The barrier to wait at after executing a work-group. */
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78 void *wg_completion_barrier;
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79
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80 /* The barrier used to synchronize WIs in case of the 'barrier' HSAIL
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81 instruction. */
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82 void *wg_sync_barrier;
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83
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84 /* This should be set to the flat address of the beginning of the group
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85 segment. */
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86 size_t group_segment_start_addr;
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87
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88 /* This must be set to the correct aligned flat address space location from
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89 where the kernel can actually read its arguments. Might point to the
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90 original global kernarg space. */
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91 void *kernarg_addr;
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92 } PHSAKernelLaunchData;
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93
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94 #endif
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