From: Tvrtko Ursulin <[email protected]>

With firmware 1.07 having fixed the state corruption issue, we can enable
the headless GT performance workaround for CNL as well. (Equivalent to
b68763741aa2 ("drm/i915: Restore GT performance in headless mode with DMC
loaded") on other affected platforms.)

Signed-off-by: Tvrtko Ursulin <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100572
Testcase: igt/gem_exec_nop/headless
Cc: Imre Deak <[email protected]>
Cc: Chris Wilson <[email protected]>
Cc: Dmitry Rogozhkin <[email protected]>
---
 drivers/gpu/drm/i915/intel_runtime_pm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c 
b/drivers/gpu/drm/i915/intel_runtime_pm.c
index d758da6156a8..4996c4ea8a80 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -1848,6 +1848,7 @@ void intel_display_power_put(struct drm_i915_private 
*dev_priv,
        BIT_ULL(POWER_DOMAIN_INIT))
 #define CNL_DISPLAY_DC_OFF_POWER_DOMAINS (             \
        CNL_DISPLAY_POWERWELL_2_POWER_DOMAINS |         \
+       BIT_ULL(POWER_DOMAIN_GT_IRQ) |                  \
        BIT_ULL(POWER_DOMAIN_MODESET) |                 \
        BIT_ULL(POWER_DOMAIN_AUX_A) |                   \
        BIT_ULL(POWER_DOMAIN_INIT))
-- 
2.14.1

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