diff options
| -rw-r--r-- | drivers/gpu/drm/i915/Makefile | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/pxp/intel_pxp.c | 32 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/pxp/intel_pxp.h | 32 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/pxp/intel_pxp_irq.h | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/pxp/intel_pxp_session.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/pxp/intel_pxp_session.h | 11 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/pxp/intel_pxp_tee.c | 10 |
7 files changed, 57 insertions, 54 deletions
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index a26edcdadc21..26fc2f23c4e0 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -309,15 +309,17 @@ i915-y += \ i915-y += i915_perf.o -# Protected execution platform (PXP) support -i915-$(CONFIG_DRM_I915_PXP) += \ +# Protected execution platform (PXP) support. Base support is required for HuC +i915-y += \ pxp/intel_pxp.o \ + pxp/intel_pxp_tee.o + +i915-$(CONFIG_DRM_I915_PXP) += \ pxp/intel_pxp_cmd.o \ pxp/intel_pxp_debugfs.o \ pxp/intel_pxp_irq.o \ pxp/intel_pxp_pm.o \ - pxp/intel_pxp_session.o \ - pxp/intel_pxp_tee.o + pxp/intel_pxp_session.o # Post-mortem debug and GPU hang state capture i915-$(CONFIG_DRM_I915_CAPTURE_ERROR) += i915_gpu_error.o diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index 69cdaaddc4a9..5efe61f67546 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -103,19 +103,15 @@ static int create_vcs_context(struct intel_pxp *pxp) static void destroy_vcs_context(struct intel_pxp *pxp) { - intel_engine_destroy_pinned_context(fetch_and_zero(&pxp->ce)); + if (pxp->ce) + intel_engine_destroy_pinned_context(fetch_and_zero(&pxp->ce)); } -void intel_pxp_init(struct intel_pxp *pxp) +static void pxp_init_full(struct intel_pxp *pxp) { struct intel_gt *gt = pxp_to_gt(pxp); int ret; - if (!HAS_PXP(gt->i915)) - return; - - mutex_init(&pxp->tee_mutex); - /* * we'll use the completion to check if there is a termination pending, * so we start it as completed and we reinit it when a termination @@ -124,8 +120,7 @@ void intel_pxp_init(struct intel_pxp *pxp) init_completion(&pxp->termination); complete_all(&pxp->termination); - mutex_init(&pxp->arb_mutex); - INIT_WORK(&pxp->session_work, intel_pxp_session_work); + intel_pxp_session_management_init(pxp); ret = create_vcs_context(pxp); if (ret) @@ -143,11 +138,26 @@ out_context: destroy_vcs_context(pxp); } -void intel_pxp_fini(struct intel_pxp *pxp) +void intel_pxp_init(struct intel_pxp *pxp) { - if (!intel_pxp_is_enabled(pxp)) + struct intel_gt *gt = pxp_to_gt(pxp); + + /* we rely on the mei PXP module */ + if (!IS_ENABLED(CONFIG_INTEL_MEI_PXP)) return; + /* + * If HuC is loaded by GSC but PXP is disabled, we can skip the init of + * the full PXP session/object management and just init the tee channel. + */ + if (HAS_PXP(gt->i915)) + pxp_init_full(pxp); + else if (intel_huc_is_loaded_by_gsc(>->uc.huc) && intel_uc_uses_huc(>->uc)) + intel_pxp_tee_component_init(pxp); +} + +void intel_pxp_fini(struct intel_pxp *pxp) +{ pxp->arb_is_valid = false; intel_pxp_tee_component_fini(pxp); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index 73847e535cab..2da309088c6d 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -12,7 +12,6 @@ struct intel_pxp; struct drm_i915_gem_object; -#ifdef CONFIG_DRM_I915_PXP struct intel_gt *pxp_to_gt(const struct intel_pxp *pxp); bool intel_pxp_is_enabled(const struct intel_pxp *pxp); bool intel_pxp_is_active(const struct intel_pxp *pxp); @@ -32,36 +31,5 @@ int intel_pxp_key_check(struct intel_pxp *pxp, bool assign); void intel_pxp_invalidate(struct intel_pxp *pxp); -#else -static inline void intel_pxp_init(struct intel_pxp *pxp) -{ -} - -static inline void intel_pxp_fini(struct intel_pxp *pxp) -{ -} - -static inline int intel_pxp_start(struct intel_pxp *pxp) -{ - return -ENODEV; -} - -static inline bool intel_pxp_is_enabled(const struct intel_pxp *pxp) -{ - return false; -} - -static inline bool intel_pxp_is_active(const struct intel_pxp *pxp) -{ - return false; -} - -static inline int intel_pxp_key_check(struct intel_pxp *pxp, - struct drm_i915_gem_object *obj, - bool assign) -{ - return -ENODEV; -} -#endif #endif /* __INTEL_PXP_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_irq.h b/drivers/gpu/drm/i915/pxp/intel_pxp_irq.h index 8b5793654844..8c292dc86f68 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_irq.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_irq.h @@ -27,6 +27,14 @@ void intel_pxp_irq_handler(struct intel_pxp *pxp, u16 iir); static inline void intel_pxp_irq_handler(struct intel_pxp *pxp, u16 iir) { } + +static inline void intel_pxp_irq_enable(struct intel_pxp *pxp) +{ +} + +static inline void intel_pxp_irq_disable(struct intel_pxp *pxp) +{ +} #endif #endif /* __INTEL_PXP_IRQ_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c index 1bb5b5249157..ecff0935adbf 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c @@ -137,7 +137,7 @@ static void pxp_terminate_complete(struct intel_pxp *pxp) complete_all(&pxp->termination); } -void intel_pxp_session_work(struct work_struct *work) +static void pxp_session_work(struct work_struct *work) { struct intel_pxp *pxp = container_of(work, typeof(*pxp), session_work); struct intel_gt *gt = pxp_to_gt(pxp); @@ -172,3 +172,9 @@ void intel_pxp_session_work(struct work_struct *work) intel_runtime_pm_put(gt->uncore->rpm, wakeref); } + +void intel_pxp_session_management_init(struct intel_pxp *pxp) +{ + mutex_init(&pxp->arb_mutex); + INIT_WORK(&pxp->session_work, pxp_session_work); +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_session.h b/drivers/gpu/drm/i915/pxp/intel_pxp_session.h index ba4c9d2b94b7..903ac52cffa1 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_session.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_session.h @@ -8,8 +8,13 @@ #include <linux/types.h> -struct work_struct; - -void intel_pxp_session_work(struct work_struct *work); +struct intel_pxp; +#ifdef CONFIG_DRM_I915_PXP +void intel_pxp_session_management_init(struct intel_pxp *pxp); +#else +static inline void intel_pxp_session_management_init(struct intel_pxp *pxp) +{ +} +#endif #endif /* __INTEL_PXP_SESSION_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c index 4b6f5655fab5..2c1fc49ecec1 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c @@ -97,7 +97,8 @@ static int i915_pxp_tee_component_bind(struct device *i915_kdev, return 0; /* the component is required to fully start the PXP HW */ - intel_pxp_init_hw(pxp); + if (intel_pxp_is_enabled(pxp)) + intel_pxp_init_hw(pxp); intel_runtime_pm_put(&i915->runtime_pm, wakeref); @@ -111,8 +112,9 @@ static void i915_pxp_tee_component_unbind(struct device *i915_kdev, struct intel_pxp *pxp = i915_dev_to_pxp(i915_kdev); intel_wakeref_t wakeref; - with_intel_runtime_pm_if_in_use(&i915->runtime_pm, wakeref) - intel_pxp_fini_hw(pxp); + if (intel_pxp_is_enabled(pxp)) + with_intel_runtime_pm_if_in_use(&i915->runtime_pm, wakeref) + intel_pxp_fini_hw(pxp); mutex_lock(&pxp->tee_mutex); pxp->pxp_component = NULL; @@ -130,6 +132,8 @@ int intel_pxp_tee_component_init(struct intel_pxp *pxp) struct intel_gt *gt = pxp_to_gt(pxp); struct drm_i915_private *i915 = gt->i915; + mutex_init(&pxp->tee_mutex); + ret = component_add_typed(i915->drm.dev, &i915_pxp_tee_component_ops, I915_COMPONENT_PXP); if (ret < 0) { |