diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_gt_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_gt_pm.c | 43 |
1 files changed, 18 insertions, 25 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c index 45b68a17da4d..d1c2f034296a 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c @@ -126,17 +126,7 @@ static bool reset_engines(struct intel_gt *gt) return __intel_gt_reset(gt, ALL_ENGINES) == 0; } -/** - * intel_gt_sanitize: called after the GPU has lost power - * @gt: the i915 GT container - * @force: ignore a failed reset and sanitize engine state anyway - * - * Anytime we reset the GPU, either with an explicit GPU reset or through a - * PCI power cycle, the GPU loses state and we must reset our state tracking - * to match. Note that calling intel_gt_sanitize() if the GPU has not - * been reset results in much confusion! - */ -void intel_gt_sanitize(struct intel_gt *gt, bool force) +static void gt_sanitize(struct intel_gt *gt, bool force) { struct intel_engine_cs *engine; enum intel_engine_id id; @@ -189,6 +179,10 @@ int intel_gt_resume(struct intel_gt *gt) enum intel_engine_id id; int err; + err = intel_gt_has_init_error(gt); + if (err) + return err; + GT_TRACE(gt, "\n"); /* @@ -201,30 +195,26 @@ int intel_gt_resume(struct intel_gt *gt) intel_uncore_forcewake_get(gt->uncore, FORCEWAKE_ALL); intel_rc6_sanitize(>->rc6); + gt_sanitize(gt, true); + if (intel_gt_is_wedged(gt)) { + err = -EIO; + goto out_fw; + } /* Only when the HW is re-initialised, can we replay the requests */ err = intel_gt_init_hw(gt); if (err) { dev_err(gt->i915->drm.dev, "Failed to initialize GPU, declaring it wedged!\n"); - intel_gt_set_wedged(gt); - goto err_fw; + goto err_wedged; } intel_rps_enable(>->rps); intel_llc_enable(>->llc); for_each_engine(engine, gt, id) { - struct intel_context *ce; - intel_engine_pm_get(engine); - ce = engine->kernel_context; - if (ce) { - GEM_BUG_ON(!intel_context_is_pinned(ce)); - ce->ops->reset(ce); - } - engine->serial++; /* kernel context lost */ err = engine->resume(engine); @@ -233,7 +223,7 @@ int intel_gt_resume(struct intel_gt *gt) dev_err(gt->i915->drm.dev, "Failed to restart %s (%d)\n", engine->name, err); - break; + goto err_wedged; } } @@ -243,11 +233,14 @@ int intel_gt_resume(struct intel_gt *gt) user_forcewake(gt, false); -err_fw: +out_fw: intel_uncore_forcewake_put(gt->uncore, FORCEWAKE_ALL); intel_gt_pm_put(gt); - return err; + +err_wedged: + intel_gt_set_wedged(gt); + goto out_fw; } static void wait_for_suspend(struct intel_gt *gt) @@ -315,7 +308,7 @@ void intel_gt_suspend_late(struct intel_gt *gt) intel_llc_disable(>->llc); } - intel_gt_sanitize(gt, false); + gt_sanitize(gt, false); GT_TRACE(gt, "\n"); } |