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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-10 18:03:47 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-15 01:35:39 +0300 |
| commit | 17136d548e1b5ecd947da996f125907a671313d9 (patch) | |
| tree | 9a90eb2bea1f9b7514427aac730c0f3f07a1db0f /drivers/gpu/drm/i915/i915_irq.c | |
| parent | db4c5e0b726f021e864e887e6b49ad6ecebabf5a (diff) | |
| download | linux-17136d548e1b5ecd947da996f125907a671313d9.tar.xz | |
drm/i915: Don't accidentally increase the frequency in handling DOWN rps
If we receive a DOWN_TIMEOUT rps interrupt, we respond by reducing the
GPU clocks significantly. Before we do, double check that the frequency
we pick is actually a decrease.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170210150348.22146-2-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 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 27c13193f7a2..86cca37a4e4f 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1186,7 +1186,7 @@ static void gen6_pm_rps_work(struct work_struct *work) } else if (pm_iir & GEN6_PM_RP_DOWN_TIMEOUT) { if (dev_priv->rps.cur_freq > dev_priv->rps.efficient_freq) new_delay = dev_priv->rps.efficient_freq; - else + else if (dev_priv->rps.cur_freq > dev_priv->rps.min_freq_softlimit) new_delay = dev_priv->rps.min_freq_softlimit; adj = 0; } else if (pm_iir & GEN6_PM_RP_DOWN_THRESHOLD) { |