We can use value of enable_guc modparam during firmware path selection
and start using firmware status to see if GuC/HuC is being used.
This is first step to make enable_guc modparam read-only.
v2: rebased, don't care about <0 (Chris)
v3: oops
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/gt/uc/intel_guc.h | 5 +++++
drivers/gpu/drm/i915/gt/uc/intel_huc.h | 5 +++++
drivers/gpu/drm/i915/gt/uc/intel_uc.h | 6 ++----
drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c | 23 +++++++++++++++++++++--
4 files changed, 33 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h
index 714e9892aaff..5901506672cd 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h
@@ -172,6 +172,11 @@ int intel_guc_suspend(struct intel_guc *guc);
int intel_guc_resume(struct intel_guc *guc);
struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size);
+static inline bool intel_guc_is_supported(struct intel_guc *guc)
+{
+ return intel_uc_fw_supported(&guc->fw);
+}
+
static inline bool intel_guc_is_running(struct intel_guc *guc)
{
return intel_uc_fw_is_running(&guc->fw);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_huc.h b/drivers/gpu/drm/i915/gt/uc/intel_huc.h
index 4465209ce233..a6ae59b8cb77 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_huc.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_huc.h
@@ -55,6 +55,11 @@ static inline int intel_huc_sanitize(struct intel_huc *huc)
return 0;
}
+static inline bool intel_huc_is_supported(struct intel_huc *huc)
+{
+ return intel_uc_fw_supported(&huc->fw);
+}
+
static inline bool intel_huc_is_authenticated(struct intel_huc *huc)
{
return intel_uc_fw_is_running(&huc->fw);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.h b/drivers/gpu/drm/i915/gt/uc/intel_uc.h
index 66d8b1ee6f1d..cf6c60cffdfb 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.h
@@ -51,8 +51,7 @@ int intel_uc_runtime_resume(struct intel_uc *uc);
static inline bool intel_uc_supports_guc(struct intel_uc *uc)
{
- GEM_BUG_ON(i915_modparams.enable_guc < 0);
- return i915_modparams.enable_guc > 0;
+ return intel_guc_is_supported(&uc->guc);
}
static inline bool intel_uc_supports_guc_submission(struct intel_uc *uc)
@@ -63,8 +62,7 @@ static inline bool intel_uc_supports_guc_submission(struct intel_uc *uc)
static inline bool intel_uc_supports_huc(struct intel_uc *uc)
{
- GEM_BUG_ON(i915_modparams.enable_guc < 0);
- return i915_modparams.enable_guc & ENABLE_GUC_LOAD_HUC;
+ return intel_huc_is_supported(&uc->huc);
}
#endif
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
index ac91e3efd02b..650ad6037b74 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
@@ -132,6 +132,25 @@ __uc_fw_auto_select(struct intel_uc_fw *uc_fw, enum intel_platform p, u8 rev)
uc_fw->path = NULL;
}
}
+
+ /* We don't want to enable GuC/HuC on pre-Gen11 by default */
+ if (i915_modparams.enable_guc == -1 && p < INTEL_ICELAKE)
+ uc_fw->path = NULL;
+}
+
+static const char *__override_guc_firmware_path(void)
+{
+ if (i915_modparams.enable_guc & (ENABLE_GUC_SUBMISSION |
+ ENABLE_GUC_LOAD_HUC))
+ return i915_modparams.guc_firmware_path;
+ return "";
+}
+
+static const char *__override_huc_firmware_path(void)
+{
+ if (i915_modparams.enable_guc & ENABLE_GUC_LOAD_HUC)
+ return i915_modparams.huc_firmware_path;
+ return "";
}
static bool
@@ -139,10 +158,10 @@ __uc_fw_override(struct intel_uc_fw *uc_fw)
{
switch (uc_fw->type) {
case INTEL_UC_FW_TYPE_GUC:
- uc_fw->path = i915_modparams.guc_firmware_path;
+ uc_fw->path = __override_guc_firmware_path();
break;
case INTEL_UC_FW_TYPE_HUC:
- uc_fw->path = i915_modparams.huc_firmware_path;
+ uc_fw->path = __override_huc_firmware_path();
break;
}
--
2.19.2
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