1 files changed, 42 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index 4babfc6ee45b..a504281e2afa 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -158,6 +158,45 @@ static u16 compute_eu_total(const struct sseu_dev_info *sseu)
 	return total;
 }
 
+static void gen11_sseu_info_init(struct drm_i915_private *dev_priv)
+{
+	struct sseu_dev_info *sseu = &mkwrite_device_info(dev_priv)->sseu;
+	u8 s_en;
+	u32 ss_en, ss_en_mask;
+	u8 eu_en;
+	int s;
+
+	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);
+	ss_en_mask = BIT(sseu->max_subslices) - 1;
+	eu_en = ~(I915_READ(GEN11_EU_DISABLE) & GEN11_EU_DIS_MASK);
+
+	for (s = 0; s < sseu->max_slices; s++) {
+		if (s_en & BIT(s)) {
+			int ss_idx = sseu->max_subslices * s;
+			int ss;
+
+			sseu->slice_mask |= BIT(s);
+			sseu->subslice_mask[s] = (ss_en >> ss_idx) & ss_en_mask;
+			for (ss = 0; ss < sseu->max_subslices; ss++) {
+				if (sseu->subslice_mask[s] & BIT(ss))
+					sseu_set_eus(sseu, s, ss, eu_en);
+			}
+		}
+	}
+	sseu->eu_per_subslice = hweight8(eu_en);
+	sseu->eu_total = compute_eu_total(sseu);
+
+	/* ICL has no power gating restrictions. */
+	sseu->has_slice_pg = 1;
+	sseu->has_subslice_pg = 1;
+	sseu->has_eu_pg = 1;
+}
+
 static void gen10_sseu_info_init(struct drm_i915_private *dev_priv)
 {
 	struct sseu_dev_info *sseu = &mkwrite_device_info(dev_priv)->sseu;
@@ -768,8 +807,10 @@ void intel_device_info_runtime_init(struct intel_device_info *info)
 		broadwell_sseu_info_init(dev_priv);
 	else if (INTEL_GEN(dev_priv) == 9)
 		gen9_sseu_info_init(dev_priv);
-	else if (INTEL_GEN(dev_priv) >= 10)
+	else if (INTEL_GEN(dev_priv) == 10)
 		gen10_sseu_info_init(dev_priv);
+	else if (INTEL_INFO(dev_priv)->gen >= 11)
+		gen11_sseu_info_init(dev_priv);
 
 	/* Initialize command stream timestamp frequency */
 	info->cs_timestamp_frequency_khz = read_timestamp_frequency(dev_priv);