forked from Minki/linux
e90b62277b
Also adjust phm_construct_table to take a const pointer Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Nils Wallménius <nils.wallmenius@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
161 lines
4.6 KiB
C
161 lines
4.6 KiB
C
/*
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* Copyright 2015 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include "hwmgr.h"
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static int phm_run_table(struct pp_hwmgr *hwmgr,
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struct phm_runtime_table_header *rt_table,
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void *input,
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void *output,
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void *temp_storage)
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{
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int result = 0;
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phm_table_function *function;
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if (rt_table->function_list == NULL) {
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printk(KERN_INFO "[ powerplay ] this function not implement!\n");
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return 0;
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}
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for (function = rt_table->function_list; NULL != *function; function++) {
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int tmp = (*function)(hwmgr, input, output, temp_storage, result);
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if (tmp == PP_Result_TableImmediateExit)
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break;
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if (tmp) {
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if (0 == result)
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result = tmp;
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if (rt_table->exit_error)
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break;
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}
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}
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return result;
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}
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int phm_dispatch_table(struct pp_hwmgr *hwmgr,
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struct phm_runtime_table_header *rt_table,
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void *input, void *output)
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{
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int result = 0;
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void *temp_storage = NULL;
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if (hwmgr == NULL || rt_table == NULL) {
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printk(KERN_ERR "[ powerplay ] Invalid Parameter!\n");
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return -EINVAL;
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}
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if (0 != rt_table->storage_size) {
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temp_storage = kzalloc(rt_table->storage_size, GFP_KERNEL);
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if (temp_storage == NULL) {
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printk(KERN_ERR "[ powerplay ] Could not allocate table temporary storage\n");
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return -ENOMEM;
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}
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}
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result = phm_run_table(hwmgr, rt_table, input, output, temp_storage);
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if (NULL != temp_storage)
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kfree(temp_storage);
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return result;
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}
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int phm_construct_table(struct pp_hwmgr *hwmgr,
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const struct phm_master_table_header *master_table,
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struct phm_runtime_table_header *rt_table)
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{
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uint32_t function_count = 0;
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const struct phm_master_table_item *table_item;
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uint32_t size;
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phm_table_function *run_time_list;
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phm_table_function *rtf;
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if (hwmgr == NULL || master_table == NULL || rt_table == NULL) {
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printk(KERN_ERR "[ powerplay ] Invalid Parameter!\n");
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return -EINVAL;
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}
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for (table_item = master_table->master_list;
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NULL != table_item->tableFunction; table_item++) {
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if ((NULL == table_item->isFunctionNeededInRuntimeTable) ||
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(table_item->isFunctionNeededInRuntimeTable(hwmgr)))
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function_count++;
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}
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size = (function_count + 1) * sizeof(phm_table_function);
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run_time_list = kzalloc(size, GFP_KERNEL);
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if (NULL == run_time_list)
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return -ENOMEM;
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rtf = run_time_list;
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for (table_item = master_table->master_list;
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NULL != table_item->tableFunction; table_item++) {
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if ((rtf - run_time_list) > function_count) {
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printk(KERN_ERR "[ powerplay ] Check function results have changed\n");
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kfree(run_time_list);
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return -EINVAL;
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}
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if ((NULL == table_item->isFunctionNeededInRuntimeTable) ||
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(table_item->isFunctionNeededInRuntimeTable(hwmgr))) {
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*(rtf++) = table_item->tableFunction;
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}
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}
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if ((rtf - run_time_list) > function_count) {
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printk(KERN_ERR "[ powerplay ] Check function results have changed\n");
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kfree(run_time_list);
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return -EINVAL;
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}
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*rtf = NULL;
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rt_table->function_list = run_time_list;
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rt_table->exit_error = (0 != (master_table->flags & PHM_MasterTableFlag_ExitOnError));
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rt_table->storage_size = master_table->storage_size;
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return 0;
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}
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int phm_destroy_table(struct pp_hwmgr *hwmgr,
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struct phm_runtime_table_header *rt_table)
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{
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if (hwmgr == NULL || rt_table == NULL) {
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printk(KERN_ERR "[ powerplay ] Invalid Parameter\n");
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return -EINVAL;
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}
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if (NULL == rt_table->function_list)
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return 0;
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kfree(rt_table->function_list);
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rt_table->function_list = NULL;
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rt_table->storage_size = 0;
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rt_table->exit_error = false;
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return 0;
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}
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