Commit 9b5de596 authored by Alex Deucher's avatar Alex Deucher

drm/radeon/dpm: implement force performance level for TN

Allows you to force the selected performance level via sysfs.
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 5d5e5591
......@@ -103,6 +103,7 @@ typedef uint8_t PPSMC_Result;
#define PPSMC_MSG_DPM_Config ((uint32_t) 0x102)
#define PPSMC_MSG_DPM_ForceState ((uint32_t) 0x104)
#define PPSMC_MSG_PG_SIMD_Config ((uint32_t) 0x108)
#define PPSMC_MSG_DPM_N_LevelsDisabled ((uint32_t) 0x112)
#define PPSMC_MSG_DCE_RemoveVoltageAdjustment ((uint32_t) 0x11d)
#define PPSMC_MSG_DCE_AllowVoltageAdjustment ((uint32_t) 0x11e)
#define PPSMC_MSG_UVD_DPM_Config ((uint32_t) 0x124)
......
......@@ -2115,6 +2115,7 @@ static struct radeon_asic trinity_asic = {
.get_mclk = &trinity_dpm_get_mclk,
.print_power_state = &trinity_dpm_print_power_state,
.debugfs_print_current_performance_level = &trinity_dpm_debugfs_print_current_performance_level,
.force_performance_level = &trinity_dpm_force_performance_level,
},
.pflip = {
.pre_page_flip = &evergreen_pre_page_flip,
......
......@@ -636,6 +636,8 @@ void trinity_dpm_print_power_state(struct radeon_device *rdev,
struct radeon_ps *ps);
void trinity_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
struct seq_file *m);
int trinity_dpm_force_performance_level(struct radeon_device *rdev,
enum radeon_dpm_forced_level level);
/* DCE6 - SI */
void dce6_bandwidth_update(struct radeon_device *rdev);
......
......@@ -1158,6 +1158,37 @@ static void trinity_setup_nbp_sim(struct radeon_device *rdev,
}
}
int trinity_dpm_force_performance_level(struct radeon_device *rdev,
enum radeon_dpm_forced_level level)
{
struct trinity_power_info *pi = trinity_get_pi(rdev);
struct radeon_ps *rps = &pi->current_rps;
struct trinity_ps *ps = trinity_get_ps(rps);
int i, ret;
if (ps->num_levels <= 1)
return 0;
if (level == RADEON_DPM_FORCED_LEVEL_HIGH) {
/* not supported by the hw */
return -EINVAL;
} else if (level == RADEON_DPM_FORCED_LEVEL_LOW) {
ret = trinity_dpm_n_levels_disabled(rdev, ps->num_levels - 1);
if (ret)
return ret;
} else {
for (i = 0; i < ps->num_levels; i++) {
ret = trinity_dpm_n_levels_disabled(rdev, 0);
if (ret)
return ret;
}
}
rdev->pm.dpm.forced_level = level;
return 0;
}
int trinity_dpm_pre_set_power_state(struct radeon_device *rdev)
{
struct trinity_power_info *pi = trinity_get_pi(rdev);
......@@ -1190,6 +1221,7 @@ int trinity_dpm_set_power_state(struct radeon_device *rdev)
trinity_force_level_0(rdev);
trinity_unforce_levels(rdev);
trinity_set_uvd_clock_after_set_eng_clock(rdev, new_ps, old_ps);
rdev->pm.dpm.forced_level = RADEON_DPM_FORCED_LEVEL_AUTO;
}
trinity_release_mutex(rdev);
......
......@@ -121,6 +121,7 @@ struct trinity_power_info {
int trinity_dpm_config(struct radeon_device *rdev, bool enable);
int trinity_uvd_dpm_config(struct radeon_device *rdev);
int trinity_dpm_force_state(struct radeon_device *rdev, u32 n);
int trinity_dpm_n_levels_disabled(struct radeon_device *rdev, u32 n);
int trinity_dpm_no_forced_level(struct radeon_device *rdev);
int trinity_dce_enable_voltage_adjustment(struct radeon_device *rdev,
bool enable);
......
......@@ -73,6 +73,13 @@ int trinity_dpm_force_state(struct radeon_device *rdev, u32 n)
return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_ForceState);
}
int trinity_dpm_n_levels_disabled(struct radeon_device *rdev, u32 n)
{
WREG32_SMC(SMU_SCRATCH0, n);
return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_N_LevelsDisabled);
}
int trinity_uvd_dpm_config(struct radeon_device *rdev)
{
return trinity_notify_message_to_smu(rdev, PPSMC_MSG_UVD_DPM_Config);
......
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