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drm/amd/powerplay: add get_temperature interface for raven

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Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hawking Zhang 2017-05-23 21:14:19 +08:00 committed by Alex Deucher
parent 5746f36dac
commit efb792c4b2
1 changed files with 25 additions and 2 deletions
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27
drivers/gpu/drm/amd/powerplay/hwmgr/rv_hwmgr.c
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@ -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;
}
@ -981,10 +982,32 @@ 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)
{
return -EINVAL;
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 = {