drm/i915/ehl: Set proper eu slice/subslice parameters for EHL

EHL has a different number of subslices.

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Bob Paauwe <bob.j.paauwe@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190322175847.25707-5-rodrigo.vivi@intel.com

diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index db00110cbb2e14276fdceec9077547fdcdbc5c3d..e0ac908bb4e9872cdce462998f1770439ea15e9d 100644 (file)
--- 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);