As we already track GuC/HuC uses by other means than modparam
there is no point in sanitizing it. Just scan modparam for
major discrepancies between what was requested vs actual.
v2: rebased, reworded info messages
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/gt/uc/intel_uc.c | 92 ++++++++-------------------
1 file changed, 28 insertions(+), 64 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.c b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
index 5d674e418e5e..1ea9b4f23b24 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
@@ -55,78 +55,42 @@ static int __intel_uc_reset_hw(struct intel_uc *uc)
return ret;
}
-static int __get_platform_enable_guc(struct intel_uc *uc)
+static void __confirm_options(struct intel_uc *uc)
{
- struct intel_uc_fw *guc_fw = &uc->guc.fw;
- struct intel_uc_fw *huc_fw = &uc->huc.fw;
- int enable_guc = 0;
-
- if (!HAS_GT_UC(uc_to_gt(uc)->i915))
- return 0;
-
- /* We don't want to enable GuC/HuC on pre-Gen11 by default */
- if (INTEL_GEN(uc_to_gt(uc)->i915) < 11)
- return 0;
-
- if (intel_uc_fw_supported(guc_fw) && intel_uc_fw_supported(huc_fw))
- enable_guc |= ENABLE_GUC_LOAD_HUC;
-
- return enable_guc;
-}
-
-/**
- * sanitize_options_early - sanitize uC related modparam options
- * @uc: the intel_uc structure
- *
- * In case of "enable_guc" option this function will attempt to modify
- * it only if it was initially set to "auto(-1)". Default value for this
- * modparam varies between platforms and it is hardcoded in driver code.
- * Any other modparam value is only monitored against availability of the
- * related hardware or firmware definitions.
- */
-static void sanitize_options_early(struct intel_uc *uc)
-{
- struct intel_uc_fw *guc_fw = &uc->guc.fw;
- struct intel_uc_fw *huc_fw = &uc->huc.fw;
-
- /* A negative value means "use platform default" */
- if (i915_modparams.enable_guc < 0)
- i915_modparams.enable_guc = __get_platform_enable_guc(uc);
-
- DRM_DEBUG_DRIVER("enable_guc=%d (submission:%s huc:%s)\n",
+ DRM_DEBUG_DRIVER("enable_guc=%d (guc:%s submission:%s huc:%s)\n",
i915_modparams.enable_guc,
+ yesno(intel_uc_supports_guc(uc)),
yesno(intel_uc_supports_guc_submission(uc)),
yesno(intel_uc_supports_huc(uc)));
- /* Verify GuC firmware availability */
- if (intel_uc_supports_guc(uc) && !intel_uc_fw_supported(guc_fw)) {
- DRM_WARN("Incompatible option detected: enable_guc=%d, "
- "but GuC is not supported!\n",
- i915_modparams.enable_guc);
- DRM_INFO("Disabling GuC/HuC loading!\n");
- i915_modparams.enable_guc = 0;
- }
+ if (i915_modparams.enable_guc == -1)
+ return;
- /* Verify HuC firmware availability */
- if (intel_uc_supports_huc(uc) && !intel_uc_fw_supported(huc_fw)) {
- DRM_WARN("Incompatible option detected: enable_guc=%d, "
- "but HuC is not supported!\n",
- i915_modparams.enable_guc);
- DRM_INFO("Disabling HuC loading!\n");
- i915_modparams.enable_guc &= ~ENABLE_GUC_LOAD_HUC;
+ if (i915_modparams.enable_guc == 0) {
+ GEM_BUG_ON(intel_uc_supports_guc(uc));
+ GEM_BUG_ON(intel_uc_supports_guc_submission(uc));
+ GEM_BUG_ON(intel_uc_supports_huc(uc));
+ return;
}
- /* XXX: GuC submission is unavailable for now */
- if (intel_uc_supports_guc_submission(uc)) {
- DRM_INFO("Incompatible option detected: enable_guc=%d, "
- "but GuC submission is not supported!\n",
- i915_modparams.enable_guc);
- DRM_INFO("Switching to non-GuC submission mode!\n");
- i915_modparams.enable_guc &= ~ENABLE_GUC_SUBMISSION;
- }
+ if (!intel_uc_supports_guc(uc))
+ DRM_INFO("Incompatible option enable_guc=%d - %s\n",
+ i915_modparams.enable_guc, "GuC is not supported!");
+
+ if (i915_modparams.enable_guc & ENABLE_GUC_LOAD_HUC &&
+ !intel_uc_supports_huc(uc))
+ DRM_INFO("Incompatible option enable_guc=%d - %s\n",
+ i915_modparams.enable_guc, "HuC is not supported!");
+
+ if (i915_modparams.enable_guc & ENABLE_GUC_SUBMISSION &&
+ !intel_uc_supports_guc_submission(uc))
+ DRM_INFO("Incompatible option enable_guc=%d - %s\n",
+ i915_modparams.enable_guc, "GuC submission is N/A");
- /* Make sure that sanitization was done */
- GEM_BUG_ON(i915_modparams.enable_guc < 0);
+ if (i915_modparams.enable_guc & ~(ENABLE_GUC_SUBMISSION ||
+ ENABLE_GUC_LOAD_HUC))
+ DRM_INFO("Incompatible option enable_guc=%d - %s\n",
+ i915_modparams.enable_guc, "undocumented flag");
}
void intel_uc_init_early(struct intel_uc *uc)
@@ -134,7 +98,7 @@ void intel_uc_init_early(struct intel_uc *uc)
intel_guc_init_early(&uc->guc);
intel_huc_init_early(&uc->huc);
- sanitize_options_early(uc);
+ __confirm_options(uc);
}
void intel_uc_cleanup_early(struct intel_uc *uc)
--
2.19.2
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