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drm/amd/powerplay: add helper function to get voltage id in votage table 

Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
steinar/wifi_calib_4_9_kernel
Rex Zhu 2016-09-12 15:17:37 +08:00 committed by Alex Deucher
parent 9597f40365
commit 8bea2527fa
2 changed files with 23 additions and 2 deletions
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21
drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
View File

@ -443,6 +443,27 @@ uint8_t phm_get_voltage_index(
return i - 1;
}
uint8_t phm_get_voltage_id(pp_atomctrl_voltage_table *voltage_table,
uint32_t voltage)
{
uint8_t count = (uint8_t) (voltage_table->count);
uint8_t i = 0;
PP_ASSERT_WITH_CODE((NULL != voltage_table),
"Voltage Table empty.", return 0;);
PP_ASSERT_WITH_CODE((0 != count),
"Voltage Table empty.", return 0;);
for (i = 0; i < count; i++) {
/* find first voltage bigger than requested */
if (voltage_table->entries[i].value >= 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;

4
drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
View File

@ -685,6 +685,8 @@ extern void phm_trim_voltage_table_to_fit_state_table(uint32_t max_vol_steps, st
extern int phm_reset_single_dpm_table(void *table, uint32_t count, int max);
extern void phm_setup_pcie_table_entry(void *table, uint32_t index, uint32_t pcie_gen, uint32_t pcie_lanes);
extern int32_t phm_get_dpm_level_enable_mask_value(void *table);
extern uint8_t phm_get_voltage_id(struct pp_atomctrl_voltage_table *voltage_table,
uint32_t voltage);
extern uint8_t phm_get_voltage_index(struct phm_ppt_v1_voltage_lookup_table *lookup_table, uint16_t voltage);
extern uint16_t phm_find_closest_vddci(struct pp_atomctrl_voltage_table *vddci_table, uint16_t vddci);
extern int phm_find_boot_level(void *table, uint32_t value, uint32_t *boot_level);
@ -709,8 +711,6 @@ extern void phm_apply_dal_min_voltage_request(struct pp_hwmgr *hwmgr);
PHM_FIELD_SHIFT(reg, field))
/* Operations on named fields. */
#define PHM_READ_FIELD(device, reg, field) \