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 <[email protected]> Cc: Daniele Ceraolo Spurio <[email protected]> Cc: Chris Wilson <[email protected]> Reviewed-by: Chris Wilson <[email protected]> --- 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 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
