Sanitize the enable_guc option so that we can enable HuC authentication,
but nothing else. The firmware interface has changed quite dramatically
in Gen11, so it will take a while before we can submit workloads to the
GuC with guarantees.
Signed-off-by: Oscar Mateo <oscar.ma...@intel.com>
Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
Cc: Michal Wajdeczko <michal.wajdec...@intel.com>
Cc: John Spotswood <john.a.spotsw...@intel.com>
Cc: Tony Ye <tony...@intel.com>
Cc: Anusha Srivatsa <anusha.sriva...@intel.com>
---
drivers/gpu/drm/i915/intel_uc.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 1cffaf7..d2a935c 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -63,6 +63,8 @@ static int __get_platform_enable_guc(struct drm_i915_private
*dev_priv)
enable_guc |= ENABLE_GUC_LOAD_HUC;
/* Any platform specific fine-tuning can be done here */
+ if (INTEL_GEN(dev_priv) >= 11)
+ enable_guc &= ~ENABLE_GUC_SUBMISSION;
return enable_guc;
}
@@ -115,6 +117,14 @@ static void sanitize_options_early(struct drm_i915_private
*dev_priv)
yesno(intel_uc_is_using_guc_submission()),
yesno(intel_uc_is_using_huc()));
+ /* Verify GuC submission support */
+ if (intel_uc_is_using_guc_submission() && INTEL_GEN(dev_priv) >= 11) {
+ DRM_WARN("Incompatible option detected: %s=%d, %s!\n",
+ "enable_guc", i915_modparams.enable_guc,
+ "submission not supported");
+ i915_modparams.enable_guc &= ~ENABLE_GUC_SUBMISSION;
+ }
+
/* Verify GuC firmware availability */
if (intel_uc_is_using_guc() && !intel_uc_fw_is_selected(guc_fw)) {
DRM_WARN("Incompatible option detected: %s=%d, %s!\n",
--
1.9.1
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