blob: 20f20e0755881ee868bf7995b8600d8e4697e679 [file] [log] [blame]
/*
* Copyright 2015 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/delay.h"
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include "cgs_common.h"
#include "power_state.h"
#include "hwmgr.h"
#include "pppcielanes.h"
#include "pp_debug.h"
#include "ppatomctrl.h"
#include "ppsmc.h"
#define VOLTAGE_SCALE 4
extern int cz_hwmgr_init(struct pp_hwmgr *hwmgr);
extern int tonga_hwmgr_init(struct pp_hwmgr *hwmgr);
extern int fiji_hwmgr_init(struct pp_hwmgr *hwmgr);
extern int polaris10_hwmgr_init(struct pp_hwmgr *hwmgr);
int hwmgr_init(struct amd_pp_init *pp_init, struct pp_instance *handle)
{
struct pp_hwmgr *hwmgr;
if ((handle == NULL) || (pp_init == NULL))
return -EINVAL;
hwmgr = kzalloc(sizeof(struct pp_hwmgr), GFP_KERNEL);
if (hwmgr == NULL)
return -ENOMEM;
handle->hwmgr = hwmgr;
hwmgr->smumgr = handle->smu_mgr;
hwmgr->device = pp_init->device;
hwmgr->chip_family = pp_init->chip_family;
hwmgr->chip_id = pp_init->chip_id;
hwmgr->hw_revision = pp_init->rev_id;
hwmgr->usec_timeout = AMD_MAX_USEC_TIMEOUT;
hwmgr->power_source = PP_PowerSource_AC;
switch (hwmgr->chip_family) {
case AMD_FAMILY_CZ:
cz_hwmgr_init(hwmgr);
break;
case AMD_FAMILY_VI:
switch (hwmgr->chip_id) {
case CHIP_TONGA:
tonga_hwmgr_init(hwmgr);
break;
case CHIP_FIJI:
fiji_hwmgr_init(hwmgr);
break;
case CHIP_POLARIS11:
case CHIP_POLARIS10:
polaris10_hwmgr_init(hwmgr);
break;
default:
return -EINVAL;
}
break;
default:
return -EINVAL;
}
phm_init_dynamic_caps(hwmgr);
return 0;
}
int hwmgr_fini(struct pp_hwmgr *hwmgr)
{
if (hwmgr == NULL || hwmgr->ps == NULL)
return -EINVAL;
/* do hwmgr finish*/
kfree(hwmgr->backend);
kfree(hwmgr->start_thermal_controller.function_list);
kfree(hwmgr->set_temperature_range.function_list);
kfree(hwmgr->ps);
kfree(hwmgr);
return 0;
}
int hw_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;
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;
hwmgr->current_ps = hwmgr->request_ps = state;
}
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;
}
/**
* Returns once the part of the register indicated by the mask has
* reached the given value.
*/
int phm_wait_on_register(struct pp_hwmgr *hwmgr, uint32_t index,
uint32_t value, uint32_t mask)
{
uint32_t i;
uint32_t cur_value;
if (hwmgr == NULL || hwmgr->device == NULL) {
printk(KERN_ERR "[ powerplay ] Invalid Hardware Manager!");
return -EINVAL;
}
for (i = 0; i < hwmgr->usec_timeout; i++) {
cur_value = cgs_read_register(hwmgr->device, index);
if ((cur_value & mask) == (value & mask))
break;
udelay(1);
}
/* timeout means wrong logic*/
if (i == hwmgr->usec_timeout)
return -1;
return 0;
}
int phm_wait_for_register_unequal(struct pp_hwmgr *hwmgr,
uint32_t index, uint32_t value, uint32_t mask)
{
uint32_t i;
uint32_t cur_value;
if (hwmgr == NULL || hwmgr->device == NULL) {
printk(KERN_ERR "[ powerplay ] Invalid Hardware Manager!");
return -EINVAL;
}
for (i = 0; i < hwmgr->usec_timeout; i++) {
cur_value = cgs_read_register(hwmgr->device, index);
if ((cur_value & mask) != (value & mask))
break;
udelay(1);
}
/* timeout means wrong logic*/
if (i == hwmgr->usec_timeout)
return -1;
return 0;
}
/**
* Returns once the part of the register indicated by the mask has
* reached the given value.The indirect space is described by giving
* the memory-mapped index of the indirect index register.
*/
void phm_wait_on_indirect_register(struct pp_hwmgr *hwmgr,
uint32_t indirect_port,
uint32_t index,
uint32_t value,
uint32_t mask)
{
if (hwmgr == NULL || hwmgr->device == NULL) {
printk(KERN_ERR "[ powerplay ] Invalid Hardware Manager!");
return;
}
cgs_write_register(hwmgr->device, indirect_port, index);
phm_wait_on_register(hwmgr, indirect_port + 1, mask, value);
}
void phm_wait_for_indirect_register_unequal(struct pp_hwmgr *hwmgr,
uint32_t indirect_port,
uint32_t index,
uint32_t value,
uint32_t mask)
{
if (hwmgr == NULL || hwmgr->device == NULL) {
printk(KERN_ERR "[ powerplay ] Invalid Hardware Manager!");
return;
}
cgs_write_register(hwmgr->device, indirect_port, index);
phm_wait_for_register_unequal(hwmgr, indirect_port + 1,
value, mask);
}
bool phm_cf_want_uvd_power_gating(struct pp_hwmgr *hwmgr)
{
return phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_UVDPowerGating);
}
bool phm_cf_want_vce_power_gating(struct pp_hwmgr *hwmgr)
{
return phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_VCEPowerGating);
}
int phm_trim_voltage_table(struct pp_atomctrl_voltage_table *vol_table)
{
uint32_t i, j;
uint16_t vvalue;
bool found = false;
struct pp_atomctrl_voltage_table *table;
PP_ASSERT_WITH_CODE((NULL != vol_table),
"Voltage Table empty.", return -EINVAL);
table = kzalloc(sizeof(struct pp_atomctrl_voltage_table),
GFP_KERNEL);
if (NULL == table)
return -EINVAL;
table->mask_low = vol_table->mask_low;
table->phase_delay = vol_table->phase_delay;
for (i = 0; i < vol_table->count; i++) {
vvalue = vol_table->entries[i].value;
found = false;
for (j = 0; j < table->count; j++) {
if (vvalue == table->entries[j].value) {
found = true;
break;
}
}
if (!found) {
table->entries[table->count].value = vvalue;
table->entries[table->count].smio_low =
vol_table->entries[i].smio_low;
table->count++;
}
}
memcpy(vol_table, table, sizeof(struct pp_atomctrl_voltage_table));
kfree(table);
return 0;
}
int phm_get_svi2_mvdd_voltage_table(struct pp_atomctrl_voltage_table *vol_table,
phm_ppt_v1_clock_voltage_dependency_table *dep_table)
{
uint32_t i;
int result;
PP_ASSERT_WITH_CODE((0 != dep_table->count),
"Voltage Dependency Table empty.", return -EINVAL);
PP_ASSERT_WITH_CODE((NULL != vol_table),
"vol_table empty.", return -EINVAL);
vol_table->mask_low = 0;
vol_table->phase_delay = 0;
vol_table->count = dep_table->count;
for (i = 0; i < dep_table->count; i++) {
vol_table->entries[i].value = dep_table->entries[i].mvdd;
vol_table->entries[i].smio_low = 0;
}
result = phm_trim_voltage_table(vol_table);
PP_ASSERT_WITH_CODE((0 == result),
"Failed to trim MVDD table.", return result);
return 0;
}
int phm_get_svi2_vddci_voltage_table(struct pp_atomctrl_voltage_table *vol_table,
phm_ppt_v1_clock_voltage_dependency_table *dep_table)
{
uint32_t i;
int result;
PP_ASSERT_WITH_CODE((0 != dep_table->count),
"Voltage Dependency Table empty.", return -EINVAL);
PP_ASSERT_WITH_CODE((NULL != vol_table),
"vol_table empty.", return -EINVAL);
vol_table->mask_low = 0;
vol_table->phase_delay = 0;
vol_table->count = dep_table->count;
for (i = 0; i < dep_table->count; i++) {
vol_table->entries[i].value = dep_table->entries[i].vddci;
vol_table->entries[i].smio_low = 0;
}
result = phm_trim_voltage_table(vol_table);
PP_ASSERT_WITH_CODE((0 == result),
"Failed to trim VDDCI table.", return result);
return 0;
}
int phm_get_svi2_vdd_voltage_table(struct pp_atomctrl_voltage_table *vol_table,
phm_ppt_v1_voltage_lookup_table *lookup_table)
{
int i = 0;
PP_ASSERT_WITH_CODE((0 != lookup_table->count),
"Voltage Lookup Table empty.", return -EINVAL);
PP_ASSERT_WITH_CODE((NULL != vol_table),
"vol_table empty.", return -EINVAL);
vol_table->mask_low = 0;
vol_table->phase_delay = 0;
vol_table->count = lookup_table->count;
for (i = 0; i < vol_table->count; i++) {
vol_table->entries[i].value = lookup_table->entries[i].us_vdd;
vol_table->entries[i].smio_low = 0;
}
return 0;
}
void phm_trim_voltage_table_to_fit_state_table(uint32_t max_vol_steps,
struct pp_atomctrl_voltage_table *vol_table)
{
unsigned int i, diff;
if (vol_table->count <= max_vol_steps)
return;
diff = vol_table->count - max_vol_steps;
for (i = 0; i < max_vol_steps; i++)
vol_table->entries[i] = vol_table->entries[i + diff];
vol_table->count = max_vol_steps;
return;
}
int phm_reset_single_dpm_table(void *table,
uint32_t count, int max)
{
int i;
struct vi_dpm_table *dpm_table = (struct vi_dpm_table *)table;
PP_ASSERT_WITH_CODE(count <= max,
"Fatal error, can not set up single DPM table entries to exceed max number!",
);
dpm_table->count = count;
for (i = 0; i < max; i++)
dpm_table->dpm_level[i].enabled = false;
return 0;
}
void phm_setup_pcie_table_entry(
void *table,
uint32_t index, uint32_t pcie_gen,
uint32_t pcie_lanes)
{
struct vi_dpm_table *dpm_table = (struct vi_dpm_table *)table;
dpm_table->dpm_level[index].value = pcie_gen;
dpm_table->dpm_level[index].param1 = pcie_lanes;
dpm_table->dpm_level[index].enabled = 1;
}
int32_t phm_get_dpm_level_enable_mask_value(void *table)
{
int32_t i;
int32_t mask = 0;
struct vi_dpm_table *dpm_table = (struct vi_dpm_table *)table;
for (i = dpm_table->count; i > 0; i--) {
mask = mask << 1;
if (dpm_table->dpm_level[i - 1].enabled)
mask |= 0x1;
else
mask &= 0xFFFFFFFE;
}
return mask;
}
uint8_t phm_get_voltage_index(
struct phm_ppt_v1_voltage_lookup_table *lookup_table, uint16_t voltage)
{
uint8_t count = (uint8_t) (lookup_table->count);
uint8_t i;
PP_ASSERT_WITH_CODE((NULL != lookup_table),
"Lookup Table empty.", return 0);
PP_ASSERT_WITH_CODE((0 != count),
"Lookup Table empty.", return 0);
for (i = 0; i < lookup_table->count; i++) {
/* find first voltage equal or bigger than requested */
if (lookup_table->entries[i].us_vdd >= voltage)
return i;
}
/* voltage is bigger than max voltage in the table */
return i - 1;
}
uint16_t phm_find_closest_vddci(struct pp_atomctrl_voltage_table *vddci_table, uint16_t vddci)
{
uint32_t i;
for (i = 0; i < vddci_table->count; i++) {
if (vddci_table->entries[i].value >= vddci)
return vddci_table->entries[i].value;
}
PP_ASSERT_WITH_CODE(false,
"VDDCI is larger than max VDDCI in VDDCI Voltage Table!",
return vddci_table->entries[i-1].value);
}
int phm_find_boot_level(void *table,
uint32_t value, uint32_t *boot_level)
{
int result = -EINVAL;
uint32_t i;
struct vi_dpm_table *dpm_table = (struct vi_dpm_table *)table;
for (i = 0; i < dpm_table->count; i++) {
if (value == dpm_table->dpm_level[i].value) {
*boot_level = i;
result = 0;
}
}
return result;
}
int phm_get_sclk_for_voltage_evv(struct pp_hwmgr *hwmgr,
phm_ppt_v1_voltage_lookup_table *lookup_table,
uint16_t virtual_voltage_id, int32_t *sclk)
{
uint8_t entryId;
uint8_t voltageId;
struct phm_ppt_v1_information *table_info =
(struct phm_ppt_v1_information *)(hwmgr->pptable);
PP_ASSERT_WITH_CODE(lookup_table->count != 0, "Lookup table is empty", return -EINVAL);
/* search for leakage voltage ID 0xff01 ~ 0xff08 and sckl */
for (entryId = 0; entryId < table_info->vdd_dep_on_sclk->count; entryId++) {
voltageId = table_info->vdd_dep_on_sclk->entries[entryId].vddInd;
if (lookup_table->entries[voltageId].us_vdd == virtual_voltage_id)
break;
}
PP_ASSERT_WITH_CODE(entryId < table_info->vdd_dep_on_sclk->count,
"Can't find requested voltage id in vdd_dep_on_sclk table!",
return -EINVAL;
);
*sclk = table_info->vdd_dep_on_sclk->entries[entryId].clk;
return 0;
}
/**
* Initialize Dynamic State Adjustment Rule Settings
*
* @param hwmgr the address of the powerplay hardware manager.
*/
int phm_initializa_dynamic_state_adjustment_rule_settings(struct pp_hwmgr *hwmgr)
{
uint32_t table_size;
struct phm_clock_voltage_dependency_table *table_clk_vlt;
struct phm_ppt_v1_information *pptable_info = (struct phm_ppt_v1_information *)(hwmgr->pptable);
/* initialize vddc_dep_on_dal_pwrl table */
table_size = sizeof(uint32_t) + 4 * sizeof(struct phm_clock_voltage_dependency_record);
table_clk_vlt = (struct phm_clock_voltage_dependency_table *)kzalloc(table_size, GFP_KERNEL);
if (NULL == table_clk_vlt) {
printk(KERN_ERR "[ powerplay ] Can not allocate space for vddc_dep_on_dal_pwrl! \n");
return -ENOMEM;
} else {
table_clk_vlt->count = 4;
table_clk_vlt->entries[0].clk = PP_DAL_POWERLEVEL_ULTRALOW;
table_clk_vlt->entries[0].v = 0;
table_clk_vlt->entries[1].clk = PP_DAL_POWERLEVEL_LOW;
table_clk_vlt->entries[1].v = 720;
table_clk_vlt->entries[2].clk = PP_DAL_POWERLEVEL_NOMINAL;
table_clk_vlt->entries[2].v = 810;
table_clk_vlt->entries[3].clk = PP_DAL_POWERLEVEL_PERFORMANCE;
table_clk_vlt->entries[3].v = 900;
pptable_info->vddc_dep_on_dal_pwrl = table_clk_vlt;
hwmgr->dyn_state.vddc_dep_on_dal_pwrl = table_clk_vlt;
}
return 0;
}
int phm_hwmgr_backend_fini(struct pp_hwmgr *hwmgr)
{
if (NULL != hwmgr->dyn_state.vddc_dep_on_dal_pwrl) {
kfree(hwmgr->dyn_state.vddc_dep_on_dal_pwrl);
hwmgr->dyn_state.vddc_dep_on_dal_pwrl = NULL;
}
if (NULL != hwmgr->backend) {
kfree(hwmgr->backend);
hwmgr->backend = NULL;
}
return 0;
}
uint32_t phm_get_lowest_enabled_level(struct pp_hwmgr *hwmgr, uint32_t mask)
{
uint32_t level = 0;
while (0 == (mask & (1 << level)))
level++;
return level;
}
void phm_apply_dal_min_voltage_request(struct pp_hwmgr *hwmgr)
{
struct phm_ppt_v1_information *table_info =
(struct phm_ppt_v1_information *)hwmgr->pptable;
struct phm_clock_voltage_dependency_table *table =
table_info->vddc_dep_on_dal_pwrl;
struct phm_ppt_v1_clock_voltage_dependency_table *vddc_table;
enum PP_DAL_POWERLEVEL dal_power_level = hwmgr->dal_power_level;
uint32_t req_vddc = 0, req_volt, i;
if (!table || table->count <= 0
|| dal_power_level < PP_DAL_POWERLEVEL_ULTRALOW
|| dal_power_level > PP_DAL_POWERLEVEL_PERFORMANCE)
return;
for (i = 0; i < table->count; i++) {
if (dal_power_level == table->entries[i].clk) {
req_vddc = table->entries[i].v;
break;
}
}
vddc_table = table_info->vdd_dep_on_sclk;
for (i = 0; i < vddc_table->count; i++) {
if (req_vddc <= vddc_table->entries[i].vddc) {
req_volt = (((uint32_t)vddc_table->entries[i].vddc) * VOLTAGE_SCALE);
smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
PPSMC_MSG_VddC_Request, req_volt);
return;
}
}
printk(KERN_ERR "DAL requested level can not"
" found a available voltage in VDDC DPM Table \n");
}