[Intel-gfx] [PATCH 7/9] drm/i915/ehl: Set proper eu slice/subslice parameters for EHL

[Rodrigo Vivi]

From: Bob Paauwe <bob.j.paauwe at intel.com>

EHL has a different number of subslices.

Cc: Lucas De Marchi <lucas.demarchi at intel.com>
Signed-off-by: Bob Paauwe <bob.j.paauwe at intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
 drivers/gpu/drm/i915/intel_device_info.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index c8c0f4134bdb..31411f1cdbb4 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -156,9 +156,15 @@ static void gen11_sseu_info_init(struct drm_i915_private *dev_priv)
 	u8 eu_en;
 	int s;
 
-	sseu->max_slices = 1;
-	sseu->max_subslices = 8;
-	sseu->max_eus_per_subslice = 8;
+	if (IS_ELKHARTLAKE(dev_priv)) {
+		sseu->max_slices = 1;
+		sseu->max_subslices = 4;
+		sseu->max_eus_per_subslice = 8;
+	} else {
+		sseu->max_slices = 1;
+		sseu->max_subslices = 8;
+		sseu->max_eus_per_subslice = 8;
+	}
 
 	s_en = I915_READ(GEN11_GT_SLICE_ENABLE) & GEN11_GT_S_ENA_MASK;
 	ss_en = ~I915_READ(GEN11_GT_SUBSLICE_DISABLE);
-- 
2.20.1