Comment # 6
on bug 96487
from Alex Deucher
The hardware automatically adjusts the clock speeds on demand based on GPU load
when in auto mode. Trinity/richland chips do not support forcing to high.
>From the driver code in trinity_dpm.c:
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;
}
You are receiving this mail because:
- You are the assignee for the bug.
_______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
