Release 4.15 drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c
/*
* Copyright 2017 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include "pp_psm.h"
int psm_init_power_state_table(struct pp_hwmgr *hwmgr)
{
int result;
unsigned int i;
unsigned int table_entries;
struct pp_power_state *state;
int size;
if (hwmgr->hwmgr_func->get_num_of_pp_table_entries == NULL)
return -EINVAL;
if (hwmgr->hwmgr_func->get_power_state_size == NULL)
return -EINVAL;
hwmgr->num_ps = table_entries = hwmgr->hwmgr_func->get_num_of_pp_table_entries(hwmgr);
hwmgr->ps_size = size = hwmgr->hwmgr_func->get_power_state_size(hwmgr) +
sizeof(struct pp_power_state);
hwmgr->ps = kzalloc(size * table_entries, GFP_KERNEL);
if (hwmgr->ps == NULL)
return -ENOMEM;
hwmgr->request_ps = kzalloc(size, GFP_KERNEL);
if (hwmgr->request_ps == NULL) {
kfree(hwmgr->ps);
hwmgr->ps = NULL;
return -ENOMEM;
}
hwmgr->current_ps = kzalloc(size, GFP_KERNEL);
if (hwmgr->current_ps == NULL) {
kfree(hwmgr->request_ps);
kfree(hwmgr->ps);
hwmgr->request_ps = NULL;
hwmgr->ps = NULL;
return -ENOMEM;
}
state = hwmgr->ps;
for (i = 0; i < table_entries; i++) {
result = hwmgr->hwmgr_func->get_pp_table_entry(hwmgr, i, state);
if (state->classification.flags & PP_StateClassificationFlag_Boot) {
hwmgr->boot_ps = state;
memcpy(hwmgr->current_ps, state, size);
memcpy(hwmgr->request_ps, state, size);
}
state->id = i + 1; /* assigned unique num for every power state id */
if (state->classification.flags & PP_StateClassificationFlag_Uvd)
hwmgr->uvd_ps = state;
state = (struct pp_power_state *)((unsigned long)state + size);
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Rex Zhu | 328 | 100.00% | 1 | 100.00% |
| Total | 328 | 100.00% | 1 | 100.00% |
int psm_fini_power_state_table(struct pp_hwmgr *hwmgr)
{
if (hwmgr == NULL)
return -EINVAL;
kfree(hwmgr->current_ps);
kfree(hwmgr->request_ps);
kfree(hwmgr->ps);
hwmgr->request_ps = NULL;
hwmgr->ps = NULL;
hwmgr->current_ps = NULL;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Rex Zhu | 62 | 100.00% | 1 | 100.00% |
| Total | 62 | 100.00% | 1 | 100.00% |
static int psm_get_ui_state(struct pp_hwmgr *hwmgr,
enum PP_StateUILabel ui_label,
unsigned long *state_id)
{
struct pp_power_state *state;
int table_entries;
int i;
table_entries = hwmgr->num_ps;
state = hwmgr->ps;
for (i = 0; i < table_entries; i++) {
if (state->classification.ui_label & ui_label) {
*state_id = state->id;
return 0;
}
state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
}
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Rex Zhu | 103 | 100.00% | 1 | 100.00% |
| Total | 103 | 100.00% | 1 | 100.00% |
static int psm_get_state_by_classification(struct pp_hwmgr *hwmgr,
enum PP_StateClassificationFlag flag,
unsigned long *state_id)
{
struct pp_power_state *state;
int table_entries;
int i;
table_entries = hwmgr->num_ps;
state = hwmgr->ps;
for (i = 0; i < table_entries; i++) {
if (state->classification.flags & flag) {
*state_id = state->id;
return 0;
}
state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
}
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Rex Zhu | 103 | 100.00% | 1 | 100.00% |
| Total | 103 | 100.00% | 1 | 100.00% |
static int psm_set_states(struct pp_hwmgr *hwmgr, unsigned long state_id)
{
struct pp_power_state *state;
int table_entries;
int i;
table_entries = hwmgr->num_ps;
state = hwmgr->ps;
for (i = 0; i < table_entries; i++) {
if (state->id == state_id) {
memcpy(hwmgr->request_ps, state, hwmgr->ps_size);
return 0;
}
state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
}
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Rex Zhu | 102 | 100.00% | 1 | 100.00% |
| Total | 102 | 100.00% | 1 | 100.00% |
int psm_set_boot_states(struct pp_hwmgr *hwmgr)
{
unsigned long state_id;
int ret = -EINVAL;
if (!psm_get_state_by_classification(hwmgr, PP_StateClassificationFlag_Boot,
&state_id))
ret = psm_set_states(hwmgr, state_id);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Rex Zhu | 45 | 100.00% | 1 | 100.00% |
| Total | 45 | 100.00% | 1 | 100.00% |
int psm_set_performance_states(struct pp_hwmgr *hwmgr)
{
unsigned long state_id;
int ret = -EINVAL;
if (!psm_get_ui_state(hwmgr, PP_StateUILabel_Performance,
&state_id))
ret = psm_set_states(hwmgr, state_id);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Rex Zhu | 45 | 100.00% | 1 | 100.00% |
| Total | 45 | 100.00% | 1 | 100.00% |
int psm_set_user_performance_state(struct pp_hwmgr *hwmgr,
enum PP_StateUILabel label_id,
struct pp_power_state **state)
{
int table_entries;
int i;
table_entries = hwmgr->num_ps;
*state = hwmgr->ps;
restart_search:
for (i = 0; i < table_entries; i++) {
if ((*state)->classification.ui_label & label_id)
return 0;
*state = (struct pp_power_state *)((uintptr_t)*state + hwmgr->ps_size);
}
switch (label_id) {
case PP_StateUILabel_Battery:
case PP_StateUILabel_Balanced:
label_id = PP_StateUILabel_Performance;
goto restart_search;
default:
break;
}
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Rex Zhu | 109 | 93.16% | 1 | 50.00% |
| Tom St Denis | 8 | 6.84% | 1 | 50.00% |
| Total | 117 | 100.00% | 2 | 100.00% |
int psm_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr, bool skip,
struct pp_power_state *new_ps)
{
struct pp_power_state *pcurrent;
struct pp_power_state *requested;
bool equal;
if (skip)
return 0;
phm_display_configuration_changed(hwmgr);
if (new_ps != NULL)
requested = new_ps;
else
requested = hwmgr->request_ps;
pcurrent = hwmgr->current_ps;
phm_apply_state_adjust_rules(hwmgr, requested, pcurrent);
if (pcurrent == NULL || (0 != phm_check_states_equal(hwmgr,
&pcurrent->hardware, &requested->hardware, &equal)))
equal = false;
if (!equal || phm_check_smc_update_required_for_display_configuration(hwmgr)) {
phm_set_power_state(hwmgr, &pcurrent->hardware, &requested->hardware);
memcpy(hwmgr->current_ps, hwmgr->request_ps, hwmgr->ps_size);
}
phm_notify_smc_display_config_after_ps_adjustment(hwmgr);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Rex Zhu | 157 | 100.00% | 2 | 100.00% |
| Total | 157 | 100.00% | 2 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Rex Zhu | 1067 | 99.26% | 2 | 66.67% |
| Tom St Denis | 8 | 0.74% | 1 | 33.33% |
| Total | 1075 | 100.00% | 3 | 100.00% |
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