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Commit efb792c4 authored by Hawking Zhang's avatar Hawking Zhang Committed by Alex Deucher
Browse files

drm/amd/powerplay: add get_temperature interface for raven 



Signed-off-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 5746f36d

drivers/gpu/drm/amd/powerplay/hwmgr/rv_hwmgr.c

+25 −2
Original line number Diff line number Diff line
@@ -35,6 +35,7 @@ 
#include "rv_hwmgr.h"

#include "power_state.h"

#include "rv_smumgr.h"

#include "pp_soc15.h"



#define RAVEN_MAX_DEEPSLEEP_DIVIDER_ID     5

#define RAVEN_MINIMUM_ENGINE_CLOCK         800   //8Mhz, the low boundary of engine clock allowed on this chip
@@ -42,7 +43,6 @@ 
#define RAVEN_DISPCLK_BYPASS_THRESHOLD     10000 //100mhz

#define SMC_RAM_END                     0x40000





static const unsigned long PhwRaven_Magic = (unsigned long) PHM_Rv_Magic;

int rv_display_clock_voltage_request(struct pp_hwmgr *hwmgr,

		struct pp_display_clock_request *clock_req);
@@ -613,6 +613,7 @@ static int rv_hwmgr_backend_init(struct pp_hwmgr *hwmgr) 
	hwmgr->platform_descriptor.minimumClocksReductionPercentage = 50;



	rv_init_vq_budget_table(hwmgr);



	return result;

}
@@ -981,11 +982,33 @@ static int rv_get_max_high_clocks(struct pp_hwmgr *hwmgr, struct amd_pp_simple_c 
	return -EINVAL;

}



static int rv_thermal_get_temperature(struct pp_hwmgr *hwmgr)

{

	uint32_t reg_offset = soc15_get_register_offset(THM_HWID, 0,

			mmTHM_TCON_CUR_TMP_BASE_IDX, mmTHM_TCON_CUR_TMP);

	uint32_t reg_value = cgs_read_register(hwmgr->device, reg_offset);

	int cur_temp =

		(reg_value & THM_TCON_CUR_TMP__CUR_TEMP_MASK) >> THM_TCON_CUR_TMP__CUR_TEMP__SHIFT;



	if (cur_temp & THM_TCON_CUR_TMP__CUR_TEMP_RANGE_SEL_MASK)

		cur_temp = ((cur_temp / 8) - 49) * PP_TEMPERATURE_UNITS_PER_CENTIGRADES;

	else

		cur_temp = (cur_temp / 8) * PP_TEMPERATURE_UNITS_PER_CENTIGRADES;



	return cur_temp;

}



static int rv_read_sensor(struct pp_hwmgr *hwmgr, int idx,

			  void *value, int *size)

{

	switch (idx) {

	case AMDGPU_PP_SENSOR_GPU_TEMP:

		*((uint32_t *)value) = rv_thermal_get_temperature(hwmgr);

		return 0;

	default:

		return -EINVAL;

	}

}



static const struct pp_hwmgr_func rv_hwmgr_funcs = {

	.backend_init = rv_hwmgr_backend_init,