From 6e7a3f5244356ce079457cb3cfbc58ca01c00a2e Mon Sep 17 00:00:00 2001
From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Date: Thu, 11 Jan 2018 08:24:17 +0000
Subject: [PATCH] drm/i915: Apply headless DMC workaround for CNL
Git-commit: 6e7a3f5244356ce079457cb3cfbc58ca01c00a2e
Patch-mainline: v4.17-rc1
References: FATE#322643 bsc#1055900
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 <tvrtko.ursulin@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100572
Testcase: igt/gem_exec_nop/headless
Cc: Imre Deak <imre.deak@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Dmitry Rogozhkin <dmitry.v.rogozhkin@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180111082417.795-1-tvrtko.ursulin@linux.intel.com
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/i915/intel_runtime_pm.c | 1 +
1 file changed, 1 insertion(+)
--- 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_
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))