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drm/radeon/dpm: add thermal dpm support for CI

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Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2014-09-15 02:15:04 -04:00
parent e03cea367f
commit 0e4ed1c190
3 changed files with 31 additions and 0 deletions
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27
drivers/gpu/drm/radeon/ci_dpm.c
View File

@ -714,6 +714,25 @@ static int ci_enable_smc_cac(struct radeon_device *rdev, bool enable)
return ret;
}
static int ci_enable_thermal_based_sclk_dpm(struct radeon_device *rdev,
bool enable)
{
struct ci_power_info *pi = ci_get_pi(rdev);
PPSMC_Result smc_result = PPSMC_Result_OK;
if (pi->thermal_sclk_dpm_enabled) {
if (enable)
smc_result = ci_send_msg_to_smc(rdev, PPSMC_MSG_ENABLE_THERMAL_DPM);
else
smc_result = ci_send_msg_to_smc(rdev, PPSMC_MSG_DISABLE_THERMAL_DPM);
}
if (smc_result == PPSMC_Result_OK)
return 0;
else
return -EINVAL;
}
static int ci_power_control_set_level(struct radeon_device *rdev)
{
struct ci_power_info *pi = ci_get_pi(rdev);
@ -5177,6 +5196,12 @@ int ci_dpm_enable(struct radeon_device *rdev)
ci_enable_auto_throttle_source(rdev, RADEON_DPM_AUTO_THROTTLE_SRC_THERMAL, true);
ret = ci_enable_thermal_based_sclk_dpm(rdev, true);
if (ret) {
DRM_ERROR("ci_enable_thermal_based_sclk_dpm failed\n");
return ret;
}
ci_thermal_start_thermal_controller(rdev);
ci_update_current_ps(rdev, boot_ps);
@ -5240,6 +5265,7 @@ void ci_dpm_disable(struct radeon_device *rdev)
ci_reset_to_default(rdev);
ci_dpm_stop_smc(rdev);
ci_force_switch_to_arb_f0(rdev);
ci_enable_thermal_based_sclk_dpm(rdev, false);
ci_update_current_ps(rdev, boot_ps);
}
@ -5639,6 +5665,7 @@ int ci_dpm_init(struct radeon_device *rdev)
pi->sclk_dpm_key_disabled = 0;
pi->mclk_dpm_key_disabled = 0;
pi->pcie_dpm_key_disabled = 0;
pi->thermal_sclk_dpm_enabled = 0;
/* mclk dpm is unstable on some R7 260X cards with the old mc ucode */
if ((rdev->pdev->device == 0x6658) &&

1
drivers/gpu/drm/radeon/ci_dpm.h
View File

@ -239,6 +239,7 @@ struct ci_power_info {
u32 sclk_dpm_key_disabled;
u32 mclk_dpm_key_disabled;
u32 pcie_dpm_key_disabled;
u32 thermal_sclk_dpm_enabled;
struct ci_pcie_perf_range pcie_gen_performance;
struct ci_pcie_perf_range pcie_lane_performance;
struct ci_pcie_perf_range pcie_gen_powersaving;

3
drivers/gpu/drm/radeon/ppsmc.h
View File

@ -162,6 +162,9 @@ typedef uint8_t PPSMC_Result;
#define PPSMC_MSG_Remove_DC_Clamp ((uint16_t) 0x191)
#define PPSMC_MSG_SetFanPwmMax ((uint16_t) 0x19A)
#define PPSMC_MSG_ENABLE_THERMAL_DPM ((uint16_t) 0x19C)
#define PPSMC_MSG_DISABLE_THERMAL_DPM ((uint16_t) 0x19D)
#define PPSMC_MSG_API_GetSclkFrequency ((uint16_t) 0x200)
#define PPSMC_MSG_API_GetMclkFrequency ((uint16_t) 0x201)