1 //===--- amdgpu/impl/interop_hsa.cpp ------------------------------ C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 #include "interop_hsa.h"
9 #include "internal.h"
10
interop_hsa_get_symbol_info(const std::map<std::string,atl_symbol_info_t> & SymbolInfoTable,int DeviceId,const char * symbol,void ** var_addr,unsigned int * var_size)11 hsa_status_t interop_hsa_get_symbol_info(
12 const std::map<std::string, atl_symbol_info_t> &SymbolInfoTable,
13 int DeviceId, const char *symbol, void **var_addr, unsigned int *var_size) {
14 /*
15 // Typical usage:
16 void *var_addr;
17 size_t var_size;
18 interop_hsa_get_symbol_addr(gpu_place, "symbol_name", &var_addr,
19 &var_size);
20 impl_memcpy(signal, host_add, var_addr, var_size);
21 */
22
23 if (!symbol || !var_addr || !var_size)
24 return HSA_STATUS_ERROR;
25
26 // get the symbol info
27 std::string symbolStr = std::string(symbol);
28 auto It = SymbolInfoTable.find(symbolStr);
29 if (It != SymbolInfoTable.end()) {
30 atl_symbol_info_t info = It->second;
31 *var_addr = reinterpret_cast<void *>(info.addr);
32 *var_size = info.size;
33 return HSA_STATUS_SUCCESS;
34 } else {
35 *var_addr = NULL;
36 *var_size = 0;
37 return HSA_STATUS_ERROR;
38 }
39 }
40
interop_hsa_get_kernel_info(const std::map<std::string,atl_kernel_info_t> & KernelInfoTable,int DeviceId,const char * kernel_name,hsa_executable_symbol_info_t kernel_info,uint32_t * value)41 hsa_status_t interop_hsa_get_kernel_info(
42 const std::map<std::string, atl_kernel_info_t> &KernelInfoTable,
43 int DeviceId, const char *kernel_name,
44 hsa_executable_symbol_info_t kernel_info, uint32_t *value) {
45 /*
46 // Typical usage:
47 uint32_t value;
48 interop_hsa_get_kernel_addr(gpu_place, "kernel_name",
49 HSA_EXECUTABLE_SYMBOL_INFO_KERNEL_KERNARG_SEGMENT_SIZE,
50 &val);
51 */
52
53 if (!kernel_name || !value)
54 return HSA_STATUS_ERROR;
55
56 hsa_status_t status = HSA_STATUS_SUCCESS;
57 // get the kernel info
58 std::string kernelStr = std::string(kernel_name);
59 auto It = KernelInfoTable.find(kernelStr);
60 if (It != KernelInfoTable.end()) {
61 atl_kernel_info_t info = It->second;
62 switch (kernel_info) {
63 case HSA_EXECUTABLE_SYMBOL_INFO_KERNEL_GROUP_SEGMENT_SIZE:
64 *value = info.group_segment_size;
65 break;
66 case HSA_EXECUTABLE_SYMBOL_INFO_KERNEL_PRIVATE_SEGMENT_SIZE:
67 *value = info.private_segment_size;
68 break;
69 case HSA_EXECUTABLE_SYMBOL_INFO_KERNEL_KERNARG_SEGMENT_SIZE:
70 // return the size for non-implicit args
71 *value = info.kernel_segment_size - sizeof(impl_implicit_args_t);
72 break;
73 default:
74 *value = 0;
75 status = HSA_STATUS_ERROR;
76 break;
77 }
78 } else {
79 *value = 0;
80 status = HSA_STATUS_ERROR;
81 }
82
83 return status;
84 }
85