From: Tom O'Rourke <Tom.O'Rourke@xxxxxxxxx>
When frequency requests are made by SLPC, host driver
should not attempt to make frequency requests due to
potential conflicts.
Host-based turbo operations are already avoided when
SLPC is used. This change covers other frequency
requests such as from sysfs or debugfs interfaces.
A later patch in this series updates sysfs/debugfs
interfaces for setting max/min frequencies with SLPC.
v1: Use intel_slpc_active instead of HAS_SLPC (Paulo)
v2-v4: Rebase.
v5: Changed intel_slpc_active to i915.enable_slpc. (Sagar)
Signed-off-by: Tom O'Rourke <Tom.O'Rourke@xxxxxxxxx>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_pm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 9c47d65..0225003 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5385,6 +5385,9 @@ int intel_set_rps(struct drm_i915_private *dev_priv, u8 val)
{
int err;
+ if (i915.enable_slpc)
+ return 0;
+
lockdep_assert_held(&dev_priv->rps.hw_lock);
GEM_BUG_ON(val > dev_priv->rps.max_freq);
GEM_BUG_ON(val < dev_priv->rps.min_freq);
--
1.9.1
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