Squash of all the patches from the series: https://patchwork.freedesktop.org/series/109429/ Above series is not a prerequisite to showcase the design changes being proposed in the next set of patches but will be in the same order dependency as here. NOTE: that series will be going through a major redesign based on the latest review comments. Signed-off-by: Alan Previn <alan.previn.teres.alexis@xxxxxxxxx> --- .../drm/i915/display/skl_universal_plane.c | 2 +- drivers/gpu/drm/i915/gem/i915_gem_context.c | 6 +- drivers/gpu/drm/i915/gem/i915_gem_create.c | 2 +- .../gpu/drm/i915/gem/i915_gem_execbuffer.c | 2 +- drivers/gpu/drm/i915/i915_drv.h | 4 - drivers/gpu/drm/i915/pxp/intel_pxp.c | 83 ++++++++++++++++--- drivers/gpu/drm/i915/pxp/intel_pxp.h | 16 +++- drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c | 2 +- drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.c | 8 +- drivers/gpu/drm/i915/pxp/intel_pxp_irq.c | 4 +- drivers/gpu/drm/i915/pxp/intel_pxp_pm.c | 8 +- drivers/gpu/drm/i915/pxp/intel_pxp_tee.c | 18 +++- 12 files changed, 114 insertions(+), 41 deletions(-) diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c index 76490cc59d8f..3436bf433c10 100644 --- a/drivers/gpu/drm/i915/display/skl_universal_plane.c +++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c @@ -1848,7 +1848,7 @@ static bool bo_has_valid_encryption(struct drm_i915_gem_object *obj) { struct drm_i915_private *i915 = to_i915(obj->base.dev); - return intel_pxp_key_check(&to_gt(i915)->pxp, obj, false) == 0; + return intel_pxp_key_check(i915, obj, false) == 0; } static bool pxp_is_borked(struct drm_i915_gem_object *obj) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c index 7f2831efc798..15c3d435093a 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c @@ -257,7 +257,7 @@ static int proto_context_set_protected(struct drm_i915_private *i915, if (!protected) { pc->uses_protected_content = false; - } else if (!intel_pxp_is_enabled(&to_gt(i915)->pxp)) { + } else if (!intel_pxp_is_enabled(i915)) { ret = -ENODEV; } else if ((pc->user_flags & BIT(UCONTEXT_RECOVERABLE)) || !(pc->user_flags & BIT(UCONTEXT_BANNABLE))) { @@ -271,8 +271,8 @@ static int proto_context_set_protected(struct drm_i915_private *i915, */ pc->pxp_wakeref = intel_runtime_pm_get(&i915->runtime_pm); - if (!intel_pxp_is_active(&to_gt(i915)->pxp)) - ret = intel_pxp_start(&to_gt(i915)->pxp); + if (!intel_pxp_is_active(i915)) + ret = intel_pxp_start(i915); } return ret; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_create.c b/drivers/gpu/drm/i915/gem/i915_gem_create.c index 33673fe7ee0a..e44803f9bec4 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_create.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_create.c @@ -384,7 +384,7 @@ static int ext_set_protected(struct i915_user_extension __user *base, void *data if (ext.flags) return -EINVAL; - if (!intel_pxp_is_enabled(&to_gt(ext_data->i915)->pxp)) + if (!intel_pxp_is_enabled(ext_data->i915)) return -ENODEV; ext_data->flags |= I915_BO_PROTECTED; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c index 29e9e8d5b6fe..9943d5827300 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c @@ -869,7 +869,7 @@ static struct i915_vma *eb_lookup_vma(struct i915_execbuffer *eb, u32 handle) */ if (i915_gem_context_uses_protected_content(eb->gem_context) && i915_gem_object_is_protected(obj)) { - err = intel_pxp_key_check(&vm->gt->pxp, obj, true); + err = intel_pxp_key_check(vm->gt->i915, obj, true); if (err) { i915_gem_object_put(obj); return ERR_PTR(err); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index a380db36d52c..a171ad57fe73 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -918,10 +918,6 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915, #define HAS_GLOBAL_MOCS_REGISTERS(dev_priv) (INTEL_INFO(dev_priv)->has_global_mocs) -#define HAS_PXP(dev_priv) ((IS_ENABLED(CONFIG_DRM_I915_PXP) && \ - INTEL_INFO(dev_priv)->has_pxp) && \ - VDBOX_MASK(to_gt(dev_priv))) - #define HAS_GMCH(dev_priv) (INTEL_INFO(dev_priv)->display.has_gmch) #define HAS_GMD_ID(i915) (INTEL_INFO(i915)->has_gmd_id) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index 5efe61f67546..58219beecfa4 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -9,6 +9,7 @@ #include "intel_pxp_tee.h" #include "gem/i915_gem_context.h" #include "gt/intel_context.h" +#include "gt/intel_gt.h" #include "i915_drv.h" /** @@ -44,16 +45,63 @@ struct intel_gt *pxp_to_gt(const struct intel_pxp *pxp) return container_of(pxp, struct intel_gt, pxp); } -bool intel_pxp_is_enabled(const struct intel_pxp *pxp) +static bool _gt_needs_teelink(struct intel_gt *gt) +{ + /* TODO: MTL won't rely on CONFIG_INTEL_MEI_PXP but on GSC engine */ + return (IS_ENABLED(CONFIG_INTEL_MEI_PXP) && intel_huc_is_loaded_by_gsc(>->uc.huc) && + intel_uc_uses_huc(>->uc)); +} + +bool intel_pxp_supported_on_gt(const struct intel_pxp *pxp) +{ + /* TODO: MTL won't rely on CONFIG_INTEL_MEI_PXP but on GSC engine */ + return (IS_ENABLED(CONFIG_INTEL_MEI_PXP) && IS_ENABLED(CONFIG_DRM_I915_PXP) && + INTEL_INFO((pxp_to_gt(pxp))->i915)->has_pxp && VDBOX_MASK(pxp_to_gt(pxp))); +} + +bool intel_pxp_is_enabled_on_gt(const struct intel_pxp *pxp) { return pxp->ce; } -bool intel_pxp_is_active(const struct intel_pxp *pxp) +struct intel_gt *intel_pxp_get_owning_gt(struct drm_i915_private *i915) +{ + struct intel_gt *gt = NULL; + int i = 0; + + for_each_gt(gt, i915, i) { + /* There can be only one GT that supports PXP */ + if (intel_pxp_supported_on_gt(>->pxp)) + return gt; + } + return NULL; +} + +bool intel_pxp_is_enabled(struct drm_i915_private *i915) +{ + struct intel_gt *gt = intel_pxp_get_owning_gt(i915); + + if (!gt) + return false; + + return intel_pxp_is_enabled_on_gt(>->pxp); +} + +bool intel_pxp_is_active_on_gt(const struct intel_pxp *pxp) { return pxp->arb_is_valid; } +bool intel_pxp_is_active(struct drm_i915_private *i915) +{ + struct intel_gt *gt = intel_pxp_get_owning_gt(i915); + + if (!gt) + return false; + + return intel_pxp_is_active_on_gt(>->pxp); +} + /* KCR register definitions */ #define KCR_INIT _MMIO(0x320f0) /* Setting KCR Init bit is required after system boot */ @@ -142,17 +190,13 @@ void intel_pxp_init(struct intel_pxp *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)) + if (intel_pxp_supported_on_gt(pxp)) pxp_init_full(pxp); - else if (intel_huc_is_loaded_by_gsc(>->uc.huc) && intel_uc_uses_huc(>->uc)) + else if (_gt_needs_teelink(gt)) intel_pxp_tee_component_init(pxp); } @@ -202,11 +246,18 @@ static bool pxp_component_bound(struct intel_pxp *pxp) * the arb session is restarted from the irq work when we receive the * termination completion interrupt */ -int intel_pxp_start(struct intel_pxp *pxp) +int intel_pxp_start(struct drm_i915_private *i915) { + struct intel_gt *gt = intel_pxp_get_owning_gt(i915); + struct intel_pxp *pxp; int ret = 0; - if (!intel_pxp_is_enabled(pxp)) + if (!gt) + return -ENODEV; + + pxp = >->pxp; + + if (!intel_pxp_is_enabled_on_gt(pxp)) return -ENODEV; if (wait_for(pxp_component_bound(pxp), 250)) @@ -249,11 +300,19 @@ void intel_pxp_fini_hw(struct intel_pxp *pxp) intel_pxp_irq_disable(pxp); } -int intel_pxp_key_check(struct intel_pxp *pxp, +int intel_pxp_key_check(struct drm_i915_private *i915, struct drm_i915_gem_object *obj, bool assign) { - if (!intel_pxp_is_active(pxp)) + struct intel_gt *gt = intel_pxp_get_owning_gt(i915); + struct intel_pxp *pxp; + + if (!gt) + return -ENODEV; + + pxp = >->pxp; + + if (!intel_pxp_is_active_on_gt(pxp)) return -ENODEV; if (!i915_gem_object_is_protected(obj)) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index 2da309088c6d..6fe1595a84d6 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -11,10 +11,18 @@ struct intel_pxp; struct drm_i915_gem_object; +struct drm_i915_private; + +struct intel_gt *intel_pxp_get_owning_gt(struct drm_i915_private *i915); 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); + +bool intel_pxp_supported_on_gt(const struct intel_pxp *pxp); + +bool intel_pxp_is_enabled_on_gt(const struct intel_pxp *pxp); +bool intel_pxp_is_enabled(struct drm_i915_private *i915); +bool intel_pxp_is_active_on_gt(const struct intel_pxp *pxp); +bool intel_pxp_is_active(struct drm_i915_private *i915); void intel_pxp_init(struct intel_pxp *pxp); void intel_pxp_fini(struct intel_pxp *pxp); @@ -24,9 +32,9 @@ void intel_pxp_fini_hw(struct intel_pxp *pxp); void intel_pxp_mark_termination_in_progress(struct intel_pxp *pxp); -int intel_pxp_start(struct intel_pxp *pxp); +int intel_pxp_start(struct drm_i915_private *i915); -int intel_pxp_key_check(struct intel_pxp *pxp, +int intel_pxp_key_check(struct drm_i915_private *i915, struct drm_i915_gem_object *obj, bool assign); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c index f41e45763d0d..f322a49ebadc 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c @@ -99,7 +99,7 @@ int intel_pxp_terminate_session(struct intel_pxp *pxp, u32 id) u32 *cs; int err = 0; - if (!intel_pxp_is_enabled(pxp)) + if (!intel_pxp_is_enabled_on_gt(pxp)) return 0; rq = i915_request_create(ce); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.c b/drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.c index 4359e8be4101..52a808fd4704 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.c @@ -18,14 +18,14 @@ static int pxp_info_show(struct seq_file *m, void *data) { struct intel_pxp *pxp = m->private; struct drm_printer p = drm_seq_file_printer(m); - bool enabled = intel_pxp_is_enabled(pxp); + bool enabled = intel_pxp_is_enabled_on_gt(pxp); if (!enabled) { drm_printf(&p, "pxp disabled\n"); return 0; } - drm_printf(&p, "active: %s\n", str_yes_no(intel_pxp_is_active(pxp))); + drm_printf(&p, "active: %s\n", str_yes_no(intel_pxp_is_active_on_gt(pxp))); drm_printf(&p, "instance counter: %u\n", pxp->key_instance); return 0; @@ -43,7 +43,7 @@ static int pxp_terminate_set(void *data, u64 val) struct intel_pxp *pxp = data; struct intel_gt *gt = pxp_to_gt(pxp); - if (!intel_pxp_is_active(pxp)) + if (!intel_pxp_is_active_on_gt(pxp)) return -ENODEV; /* simulate a termination interrupt */ @@ -70,7 +70,7 @@ void intel_pxp_debugfs_register(struct intel_pxp *pxp, struct dentry *gt_root) if (!gt_root) return; - if (!HAS_PXP((pxp_to_gt(pxp)->i915))) + if (!intel_pxp_supported_on_gt(pxp)) return; root = debugfs_create_dir("pxp", gt_root); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_irq.c b/drivers/gpu/drm/i915/pxp/intel_pxp_irq.c index c28be430718a..c25c1979cccc 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_irq.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_irq.c @@ -22,7 +22,7 @@ void intel_pxp_irq_handler(struct intel_pxp *pxp, u16 iir) { struct intel_gt *gt = pxp_to_gt(pxp); - if (GEM_WARN_ON(!intel_pxp_is_enabled(pxp))) + if (GEM_WARN_ON(!intel_pxp_is_enabled_on_gt(pxp))) return; lockdep_assert_held(gt->irq_lock); @@ -86,7 +86,7 @@ void intel_pxp_irq_disable(struct intel_pxp *pxp) * called in a path were the driver consider the session as valid and * doesn't call a termination on restart. */ - GEM_WARN_ON(intel_pxp_is_active(pxp)); + GEM_WARN_ON(intel_pxp_is_active_on_gt(pxp)); spin_lock_irq(gt->irq_lock); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c index 6a7d4e2ee138..19ac8828cbde 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c @@ -11,7 +11,7 @@ void intel_pxp_suspend_prepare(struct intel_pxp *pxp) { - if (!intel_pxp_is_enabled(pxp)) + if (!intel_pxp_is_enabled_on_gt(pxp)) return; pxp->arb_is_valid = false; @@ -23,7 +23,7 @@ void intel_pxp_suspend(struct intel_pxp *pxp) { intel_wakeref_t wakeref; - if (!intel_pxp_is_enabled(pxp)) + if (!intel_pxp_is_enabled_on_gt(pxp)) return; with_intel_runtime_pm(&pxp_to_gt(pxp)->i915->runtime_pm, wakeref) { @@ -34,7 +34,7 @@ void intel_pxp_suspend(struct intel_pxp *pxp) void intel_pxp_resume(struct intel_pxp *pxp) { - if (!intel_pxp_is_enabled(pxp)) + if (!intel_pxp_is_enabled_on_gt(pxp)) return; /* @@ -50,7 +50,7 @@ void intel_pxp_resume(struct intel_pxp *pxp) void intel_pxp_runtime_suspend(struct intel_pxp *pxp) { - if (!intel_pxp_is_enabled(pxp)) + if (!intel_pxp_is_enabled_on_gt(pxp)) return; pxp->arb_is_valid = false; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c index b0c9170b1395..b9198e961cb6 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c @@ -20,8 +20,12 @@ static inline struct intel_pxp *i915_dev_to_pxp(struct device *i915_kdev) { struct drm_i915_private *i915 = kdev_to_i915(i915_kdev); + struct intel_gt *gt = intel_pxp_get_owning_gt(i915); - return &to_gt(i915)->pxp; + if (!gt) + return NULL; + + return >->pxp; } static int intel_pxp_tee_io_message(struct intel_pxp *pxp, @@ -128,10 +132,16 @@ static int i915_pxp_tee_component_bind(struct device *i915_kdev, { struct drm_i915_private *i915 = kdev_to_i915(i915_kdev); struct intel_pxp *pxp = i915_dev_to_pxp(i915_kdev); - struct intel_uc *uc = &pxp_to_gt(pxp)->uc; + struct intel_uc *uc; intel_wakeref_t wakeref; int ret = 0; + if (!pxp) { + drm_warn(&i915->drm, "tee comp binding without a PXP-owner GT\n"); + return -ENODEV; + } + uc = &pxp_to_gt(pxp)->uc; + mutex_lock(&pxp->tee_mutex); pxp->pxp_component = data; pxp->pxp_component->tee_dev = tee_kdev; @@ -152,7 +162,7 @@ static int i915_pxp_tee_component_bind(struct device *i915_kdev, return 0; /* the component is required to fully start the PXP HW */ - if (intel_pxp_is_enabled(pxp)) + if (intel_pxp_is_enabled_on_gt(pxp)) intel_pxp_init_hw(pxp); intel_runtime_pm_put(&i915->runtime_pm, wakeref); @@ -167,7 +177,7 @@ 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; - if (intel_pxp_is_enabled(pxp)) + if (intel_pxp_is_enabled_on_gt(pxp)) with_intel_runtime_pm_if_in_use(&i915->runtime_pm, wakeref) intel_pxp_fini_hw(pxp); -- 2.34.1
