From 069d40f5834ad26a58f269225a7e13af17019062 Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@intel.com>
Date: Tue, 3 Oct 2017 12:51:59 +0300
Subject: [PATCH] drm/i915/glk: Fix DMC/DC state idleness calculation
Git-commit: 069d40f5834ad26a58f269225a7e13af17019062
Patch-mainline: v4.14-rc4
References: FATE#322643 bsc#1055900
No-fix: b7208a3f3e52791571df064fb96025ad48edd1bf
According to BSpec GLK like BXT needs to ignore the idle state of cores
before starting the DMC firmware's DC state handler.
Fixes: dbb28b5c3d3c ("drm/i915/DMC/GLK: Load DMC on GLK")
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171003095159.711-2-imre.deak@intel.com
(cherry picked from commit b7208a3f3e52791571df064fb96025ad48edd1bf)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/i915/intel_csr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/i915/intel_csr.c
+++ b/drivers/gpu/drm/i915/intel_csr.c
@@ -216,7 +216,7 @@ static void gen9_set_dc_state_debugmask(
mask = DC_STATE_DEBUG_MASK_MEMORY_UP;
- if (IS_BROXTON(dev_priv))
+ if (IS_GEN9_LP(dev_priv))
mask |= DC_STATE_DEBUG_MASK_CORES;
/* The below bit doesn't need to be cleared ever afterwards */