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drm/amd/powerplay: add atomctrl function to calculate CZ sclk dividers 

Use atombios to calculate the values.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2015-11-13 22:00:01 -05:00
parent 92b05d827d
commit d39d5c2c9d
2 changed files with 25 additions and 0 deletions
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22
drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c
View File

@ -313,6 +313,28 @@ int atomctrl_get_memory_pll_dividers_vi(struct pp_hwmgr *hwmgr,
return result;
}
int atomctrl_get_engine_pll_dividers_kong(struct pp_hwmgr *hwmgr,
uint32_t clock_value,
pp_atomctrl_clock_dividers_kong *dividers)
{
COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V4 pll_parameters;
int result;
pll_parameters.ulClock = clock_value;
result = cgs_atom_exec_cmd_table
(hwmgr->device,
GetIndexIntoMasterTable(COMMAND, ComputeMemoryEnginePLL),
&pll_parameters);
if (0 == result) {
dividers->pll_post_divider = pll_parameters.ucPostDiv;
dividers->real_clock = pll_parameters.ulClock;
}
return result;
}
int atomctrl_get_engine_pll_dividers_vi(
struct pp_hwmgr *hwmgr,
uint32_t clock_value,

3
drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.h
View File

@ -233,6 +233,9 @@ extern bool atomctrl_is_voltage_controled_by_gpio_v3(struct pp_hwmgr *hwmgr, uin
extern int atomctrl_get_voltage_table_v3(struct pp_hwmgr *hwmgr, uint8_t voltage_type, uint8_t voltage_mode, pp_atomctrl_voltage_table *voltage_table);
extern int atomctrl_get_memory_pll_dividers_vi(struct pp_hwmgr *hwmgr,
uint32_t clock_value, pp_atomctrl_memory_clock_param *mpll_param);
extern int atomctrl_get_engine_pll_dividers_kong(struct pp_hwmgr *hwmgr,
uint32_t clock_value,
pp_atomctrl_clock_dividers_kong *dividers);
extern int atomctrl_read_efuse(void *device, uint16_t start_index,
uint16_t end_index, uint32_t mask, uint32_t *efuse);
extern int atomctrl_calculate_voltage_evv_on_sclk(struct pp_hwmgr *hwmgr, uint8_t voltage_type,