Upcoming Gen11 GuC firmware requires new interface that is incompatible
with existing pre-Gen11 firmwares. Updated firmwares for pre-Gen11 will
arrive later. In the meantime sanitize the enable_guc option so that we
can enable HuC authentication but nothing else on pre-Gen11.
Signed-off-by: Michal Wajdeczko <michal.wajdec...@intel.com>
Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.v...@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospu...@intel.com>
Cc: Michel Thierry <michel.thie...@intel.com>
Cc: John Spotswood <john.a.spotsw...@intel.com>
Cc: Vinay Belgaumkar <vinay.belgaum...@intel.com>
Cc: Tony Ye <tony...@intel.com>
Cc: Anusha Srivatsa <anusha.sriva...@intel.com>
Cc: Jeff Mcgee <jeff.mc...@intel.com>
Cc: Antonio Argenziano <antonio.argenzi...@intel.com>
Cc: Sujaritha Sundaresan <sujaritha.sundare...@intel.com>
---
drivers/gpu/drm/i915/intel_uc.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 7a3a4ca..185b29b 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
*i915)
enable_guc |= ENABLE_GUC_LOAD_HUC;
/* Any platform specific fine-tuning can be done here */
+ if (INTEL_GEN(i915) < 11)
+ enable_guc &= ~ENABLE_GUC_SUBMISSION;
return enable_guc;
}
@@ -115,6 +117,13 @@ static void sanitize_options_early(struct drm_i915_private
*i915)
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(i915) < 11) {
+ DRM_WARN("Incompatible option detected: %s=%d, %s!\n",
+ "enable_guc", i915_modparams.enable_guc,
+ "submission not supported");
+ }
+
/* 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",
@@ -292,6 +301,12 @@ int intel_uc_init(struct drm_i915_private *i915)
return ret;
if (USES_GUC_SUBMISSION(i915)) {
+
+ if (INTEL_GEN(i915) < 11) {
+ intel_guc_fini(guc);
+ return -EIO;
+ }
+
/*
* This is stuff we need to have available at fw load time
* if we are planning to enable submission later
--
1.9.1
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