drm/i915/guc: Enable GuC CTB communication on Gen11

Gen11 GuC firmware expects H2G command messages to be sent over CTB
(command transport buffers).

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: John Spotswood <john.a.spotswood@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190527183613.17076-15-michal.wajdeczko@intel.com

diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index d7c07a9474979dcd7e5ebb4ebe0c9d26197b0ec0..fc66d7f348fc6c12dccbfda8346c60df6f1b99a3 100644 (file)
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -746,6 +746,7 @@ static const struct intel_device_info intel_cannonlake_info = {
        }, \
        GEN(11), \
        .ddb_size = 2048, \
+       .has_guc_ct = 1, \
        .has_logical_ring_elsq = 1, \
        .color = { .degamma_lut_size = 33, .gamma_lut_size = 1024 }