From patchwork Thu Sep 7 00:20:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alan Previn X-Patchwork-Id: 13376001 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2B69AEE14C3 for ; Thu, 7 Sep 2023 00:20:42 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AEAE010E73C; Thu, 7 Sep 2023 00:20:37 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id E65B310E20C; Thu, 7 Sep 2023 00:20:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1694046034; x=1725582034; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=UQp34hxGzm9t3ksorX30dU31mKbMRnWycgOvYxhsT7A=; b=KuN1BLyjKjIORUFq+bY42hm/npKU4/a3SnHk6wcZLnzSc8jsPGwfkMdH nITb2v1JXL6ktUvZRbzTjY8BQ8+E5EzyIXmvY/DQp8uA2xID6ljs7Is1e EZrblYDgkYgdKCWCvJ+wqw8dSMjergF+LodY5h27W5QRi/o0PJ1K5L2Rl 3mGmoxlOnENYxyXGxo5qB3jE+pwDnQEBDHJ0ZyfSFBZU7ny5LsWj/TKAb zPptGSJUHIG3Knz5VJpBfwIDjpYZyiNgl0smTibgio/GrapzAhWJs8t01 ssbn7eTZgZuOzYxihk7OcbbnlDZQYU73ip/USefSAB6IQdK6M9xbqnoDs g==; X-IronPort-AV: E=McAfee;i="6600,9927,10825"; a="443606342" X-IronPort-AV: E=Sophos;i="6.02,233,1688454000"; d="scan'208";a="443606342" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Sep 2023 17:20:34 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10825"; a="865376868" X-IronPort-AV: E=Sophos;i="6.02,233,1688454000"; d="scan'208";a="865376868" Received: from aalteres-desk.fm.intel.com ([10.80.57.53]) by orsmga004.jf.intel.com with ESMTP; 06 Sep 2023 17:20:33 -0700 From: Alan Previn To: intel-gfx@lists.freedesktop.org Date: Wed, 6 Sep 2023 17:20:32 -0700 Message-Id: <20230907002032.81587-1-alan.previn.teres.alexis@intel.com> X-Mailer: git-send-email 2.39.0 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v1 1/1] drm/i915/pxp: Add drm_dbgs for critical PXP events. X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dri-devel@lists.freedesktop.org, Alan Previn Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Debugging PXP issues can't even begin without understanding precedding sequence of events. Add drm_dbg into the most important PXP events. Signed-off-by: Alan Previn --- drivers/gpu/drm/i915/gt/uc/intel_gsc_proxy.c | 2 ++ drivers/gpu/drm/i915/pxp/intel_pxp.c | 10 ++++++++-- drivers/gpu/drm/i915/pxp/intel_pxp_irq.c | 4 ++-- drivers/gpu/drm/i915/pxp/intel_pxp_session.c | 6 +++++- drivers/gpu/drm/i915/pxp/intel_pxp_types.h | 1 + 5 files changed, 18 insertions(+), 5 deletions(-) base-commit: 5008076127a9599704e98fb4de3761743d943dd0 diff --git a/drivers/gpu/drm/i915/gt/uc/intel_gsc_proxy.c b/drivers/gpu/drm/i915/gt/uc/intel_gsc_proxy.c index 5f138de3c14f..61216c4abaec 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_gsc_proxy.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_gsc_proxy.c @@ -321,6 +321,7 @@ static int i915_gsc_proxy_component_bind(struct device *i915_kdev, mutex_lock(&gsc->proxy.mutex); gsc->proxy.component = data; gsc->proxy.component->mei_dev = mei_kdev; + gt_dbg(gt, "GSC proxy mei component bound\n"); mutex_unlock(&gsc->proxy.mutex); return 0; @@ -342,6 +343,7 @@ static void i915_gsc_proxy_component_unbind(struct device *i915_kdev, with_intel_runtime_pm(&i915->runtime_pm, wakeref) intel_uncore_rmw(gt->uncore, HECI_H_CSR(MTL_GSC_HECI2_BASE), HECI_H_CSR_IE | HECI_H_CSR_RST, 0); + gt_dbg(gt, "GSC proxy mei component unbound\n"); } static const struct component_ops i915_gsc_proxy_component_ops = { diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index dc327cf40b5a..d285f10bbacc 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -303,6 +303,8 @@ static int __pxp_global_teardown_final(struct intel_pxp *pxp) if (!pxp->arb_is_valid) return 0; + + drm_dbg(&pxp->ctrl_gt->i915->drm, "PXP: %s invoked", __func__); /* * To ensure synchronous and coherent session teardown completion * in response to suspend or shutdown triggers, don't use a worker. @@ -324,6 +326,8 @@ static int __pxp_global_teardown_restart(struct intel_pxp *pxp) if (pxp->arb_is_valid) return 0; + + drm_dbg(&pxp->ctrl_gt->i915->drm, "PXP: %s invoked", __func__); /* * The arb-session is currently inactive and we are doing a reset and restart * due to a runtime event. Use the worker that was designed for this. @@ -414,10 +418,12 @@ int intel_pxp_start(struct intel_pxp *pxp) int ret = 0; ret = intel_pxp_get_readiness_status(pxp, PXP_READINESS_TIMEOUT); - if (ret < 0) + if (ret < 0) { + drm_dbg(&pxp->ctrl_gt->i915->drm, "PXP: explicit %s failed on readiness with %d", __func__, ret); return ret; - else if (ret > 1) + } else if (ret > 1) { return -EIO; /* per UAPI spec, user may retry later */ + } mutex_lock(&pxp->arb_mutex); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_irq.c b/drivers/gpu/drm/i915/pxp/intel_pxp_irq.c index 91e9622c07d0..0637b1d36356 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_irq.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_irq.c @@ -40,11 +40,11 @@ void intel_pxp_irq_handler(struct intel_pxp *pxp, u16 iir) GEN12_DISPLAY_APP_TERMINATED_PER_FW_REQ_INTERRUPT)) { /* immediately mark PXP as inactive on termination */ intel_pxp_mark_termination_in_progress(pxp); - pxp->session_events |= PXP_TERMINATION_REQUEST | PXP_INVAL_REQUIRED; + pxp->session_events |= PXP_TERMINATION_REQUEST | PXP_INVAL_REQUIRED | PXP_EVENT_TYPE_IRQ; } if (iir & GEN12_DISPLAY_STATE_RESET_COMPLETE_INTERRUPT) - pxp->session_events |= PXP_TERMINATION_COMPLETE; + pxp->session_events |= PXP_TERMINATION_COMPLETE | PXP_EVENT_TYPE_IRQ; if (pxp->session_events) queue_work(system_unbound_wq, &pxp->session_work); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c index 0a3e66b0265e..2041dd5221e7 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c @@ -137,8 +137,10 @@ void intel_pxp_terminate(struct intel_pxp *pxp, bool post_invalidation_needs_res static void pxp_terminate_complete(struct intel_pxp *pxp) { /* Re-create the arb session after teardown handle complete */ - if (fetch_and_zero(&pxp->hw_state_invalidated)) + if (fetch_and_zero(&pxp->hw_state_invalidated)) { + drm_dbg(&pxp->ctrl_gt->i915->drm, "PXP: %s to create arb_session after invalidation", __func__); pxp_create_arb_session(pxp); + } complete_all(&pxp->termination); } @@ -157,6 +159,8 @@ static void pxp_session_work(struct work_struct *work) if (!events) return; + drm_dbg(>->i915->drm, "PXP: %s invoked with event-flags 0x%08x", __func__, events); + if (events & PXP_INVAL_REQUIRED) intel_pxp_invalidate(pxp); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h index 7e11fa8034b2..07864b584cf4 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h @@ -124,6 +124,7 @@ struct intel_pxp { #define PXP_TERMINATION_REQUEST BIT(0) #define PXP_TERMINATION_COMPLETE BIT(1) #define PXP_INVAL_REQUIRED BIT(2) +#define PXP_EVENT_TYPE_IRQ BIT(3) }; #endif /* __INTEL_PXP_TYPES_H__ */