diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-10 15:03:48 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-14 22:35:46 +0000 |
| commit | bd64818dfe3b19ecdcf47a7b0726c4b59ff4fb5e (patch) | |
| tree | 302075cf966f871965a015b6bf32be457fc30d20 /drivers/gpu/drm/i915/i915_irq.c | |
| parent | 17136d548e1b5ecd947da996f125907a671313d9 (diff) | |
drm/i915: Only apply the jump to the "efficient RPS" frequency on startup
Currently we apply the jump to rpe if we are below it and the GPU needs
more power. For some GPUs, the rpe is 75% of the maximum range causing
us to dramatically overshoot low power applications *and* unable to
reach the low frequency that can most efficiently deliver their
workload.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170210150348.22146-3-chris@chris-wilson.co.uk
Reviewed-by: Radoslaw Szwichtenberg <radoslaw.szwichtenberg@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 86cca37a4e4f..84fda3fce4b8 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1173,14 +1173,6 @@ static void gen6_pm_rps_work(struct work_struct *work) if (new_delay >= dev_priv->rps.max_freq_softlimit) adj = 0; - /* - * For better performance, jump directly - * to RPe if we're below it. - */ - if (new_delay < dev_priv->rps.efficient_freq - adj) { - new_delay = dev_priv->rps.efficient_freq; - adj = 0; - } } else if (client_boost || any_waiters(dev_priv)) { adj = 0; } else if (pm_iir & GEN6_PM_RP_DOWN_TIMEOUT) { |