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3bace359 JZ |
1 | /* |
2 | * Copyright 2015 Advanced Micro Devices, Inc. | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | * OTHER DEALINGS IN THE SOFTWARE. | |
21 | * | |
22 | */ | |
23 | #include <linux/types.h> | |
24 | #include <linux/kernel.h> | |
25 | #include <linux/slab.h> | |
26 | #include "hwmgr.h" | |
27 | ||
28 | static int phm_run_table(struct pp_hwmgr *hwmgr, | |
29 | struct phm_runtime_table_header *rt_table, | |
30 | void *input, | |
31 | void *output, | |
32 | void *temp_storage) | |
33 | { | |
34 | int result = 0; | |
35 | phm_table_function *function; | |
36 | ||
37 | for (function = rt_table->function_list; NULL != *function; function++) { | |
38 | int tmp = (*function)(hwmgr, input, output, temp_storage, result); | |
39 | ||
40 | if (tmp == PP_Result_TableImmediateExit) | |
41 | break; | |
42 | if (tmp) { | |
43 | if (0 == result) | |
44 | result = tmp; | |
45 | if (rt_table->exit_error) | |
46 | break; | |
47 | } | |
48 | } | |
49 | ||
50 | return result; | |
51 | } | |
52 | ||
53 | int phm_dispatch_table(struct pp_hwmgr *hwmgr, | |
54 | struct phm_runtime_table_header *rt_table, | |
55 | void *input, void *output) | |
56 | { | |
57 | int result = 0; | |
58 | void *temp_storage = NULL; | |
59 | ||
60 | if (hwmgr == NULL || rt_table == NULL || rt_table->function_list == NULL) { | |
61 | printk(KERN_ERR "[ powerplay ] Invalid Parameter!\n"); | |
62 | return 0; /*temp return ture because some function not implement on some asic */ | |
63 | } | |
64 | ||
65 | if (0 != rt_table->storage_size) { | |
66 | temp_storage = kzalloc(rt_table->storage_size, GFP_KERNEL); | |
67 | if (temp_storage == NULL) { | |
68 | printk(KERN_ERR "[ powerplay ] Could not allocate table temporary storage\n"); | |
69 | return -1; | |
70 | } | |
71 | } | |
72 | ||
73 | result = phm_run_table(hwmgr, rt_table, input, output, temp_storage); | |
74 | ||
75 | if (NULL != temp_storage) | |
76 | kfree(temp_storage); | |
77 | ||
78 | return result; | |
79 | } | |
80 | ||
81 | int phm_construct_table(struct pp_hwmgr *hwmgr, | |
82 | struct phm_master_table_header *master_table, | |
83 | struct phm_runtime_table_header *rt_table) | |
84 | { | |
85 | uint32_t function_count = 0; | |
86 | const struct phm_master_table_item *table_item; | |
87 | uint32_t size; | |
88 | phm_table_function *run_time_list; | |
89 | phm_table_function *rtf; | |
90 | ||
91 | if (hwmgr == NULL || master_table == NULL || rt_table == NULL) { | |
92 | printk(KERN_ERR "[ powerplay ] Invalid Parameter!\n"); | |
93 | return -1; | |
94 | } | |
95 | ||
96 | for (table_item = master_table->master_list; | |
97 | NULL != table_item->tableFunction; table_item++) { | |
98 | if ((NULL == table_item->isFunctionNeededInRuntimeTable) || | |
99 | (table_item->isFunctionNeededInRuntimeTable(hwmgr))) | |
100 | function_count++; | |
101 | } | |
102 | ||
103 | size = (function_count + 1) * sizeof(phm_table_function); | |
104 | run_time_list = kzalloc(size, GFP_KERNEL); | |
105 | if (NULL == run_time_list) | |
106 | return -1; | |
107 | ||
108 | rtf = run_time_list; | |
109 | for (table_item = master_table->master_list; | |
110 | NULL != table_item->tableFunction; table_item++) { | |
111 | if ((rtf - run_time_list) > function_count) { | |
112 | printk(KERN_ERR "[ powerplay ] Check function results have changed\n"); | |
113 | kfree(run_time_list); | |
114 | return -1; | |
115 | } | |
116 | ||
117 | if ((NULL == table_item->isFunctionNeededInRuntimeTable) || | |
118 | (table_item->isFunctionNeededInRuntimeTable(hwmgr))) { | |
119 | *(rtf++) = table_item->tableFunction; | |
120 | } | |
121 | } | |
122 | ||
123 | if ((rtf - run_time_list) > function_count) { | |
124 | printk(KERN_ERR "[ powerplay ] Check function results have changed\n"); | |
125 | kfree(run_time_list); | |
126 | return -1; | |
127 | } | |
128 | ||
129 | *rtf = NULL; | |
130 | rt_table->function_list = run_time_list; | |
131 | rt_table->exit_error = (0 != (master_table->flags & PHM_MasterTableFlag_ExitOnError)); | |
132 | rt_table->storage_size = master_table->storage_size; | |
133 | return 0; | |
134 | } | |
135 | ||
136 | int phm_destroy_table(struct pp_hwmgr *hwmgr, | |
137 | struct phm_runtime_table_header *rt_table) | |
138 | { | |
139 | if (hwmgr == NULL || rt_table == NULL) { | |
140 | printk(KERN_ERR "[ powerplay ] Invalid Parameter\n"); | |
141 | return -1; | |
142 | } | |
143 | ||
144 | if (NULL == rt_table->function_list) | |
145 | return 0; | |
146 | ||
147 | kfree(rt_table->function_list); | |
148 | ||
149 | rt_table->function_list = NULL; | |
150 | rt_table->storage_size = 0; | |
151 | rt_table->exit_error = false; | |
152 | ||
153 | return 0; | |
154 | } |