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drm/i915/glk: Fix DMC/DC state idleness calculation

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According to BSpec GLK like BXT needs to ignore the idle state of cores
before starting the DMC firmware's DC state handler.

Fixes: dbb28b5c3d ("drm/i915/DMC/GLK: Load DMC on GLK")
Cc: Anusha Srivatsa <[email protected]>
Cc: Rodrigo Vivi <[email protected]>
Signed-off-by: Imre Deak <[email protected]>
Reviewed-by: Rodrigo Vivi <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit b7208a3f3e)
Signed-off-by: Rodrigo Vivi <[email protected]>
This commit is contained in:
Imre Deak 2017-10-03 12:51:59 +03:00 • committed by Rodrigo Vivi
commit 069d40f583
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/intel_csr.c
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@ -216,7 +216,7 @@ static void gen9_set_dc_state_debugmask(struct drm_i915_private *dev_priv)
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 */