From patchwork Thu Feb 14 02:57:08 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Santa, Carlos" X-Patchwork-Id: 10811639 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 54B44746 for ; Thu, 14 Feb 2019 02:57:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 40C1F2DB83 for ; Thu, 14 Feb 2019 02:57:46 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 34BB92DB9C; Thu, 14 Feb 2019 02:57:46 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id AB2E92DB83 for ; Thu, 14 Feb 2019 02:57:45 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B92F26E846; Thu, 14 Feb 2019 02:57:44 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 953286E846 for ; Thu, 14 Feb 2019 02:57:41 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Feb 2019 18:57:41 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,367,1544515200"; d="scan'208";a="124345890" Received: from miryad.jf.intel.com ([10.54.74.35]) by fmsmga008.fm.intel.com with ESMTP; 13 Feb 2019 18:57:41 -0800 From: Carlos Santa To: intel-gfx@lists.freedesktop.org Date: Wed, 13 Feb 2019 18:57:08 -0800 Message-Id: <20190214025713.34150-2-carlos.santa@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190214025713.34150-1-carlos.santa@intel.com> References: <20190214025713.34150-1-carlos.santa@intel.com> Subject: [Intel-gfx] [PATCH v3 1/6] drm/i915: Add engine reset count in get-reset-stats ioctl X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Michel Thierry MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: Michel Thierry Users/tests relying on the total reset count will start seeing a smaller number since most of the hangs can be handled by engine reset. Note that if reset engine x, context a running on engine y will be unaware and unaffected. To start the discussion, include just a total engine reset count. If it is deemed useful, it can be extended to report each engine separately. Our igt's gem_reset_stats test will need changes to ignore the pad field, since it can now return reset_engine_count. v2: s/engine_reset/reset_engine/, use union in uapi to not break compatibility. v3: Keep rejecting attempts to use pad as input (Antonio) v4: Rebased. v5: Rebased. Cc: Chris Wilson Cc: Mika Kuoppala Cc: Antonio Argenziano Cc: Cc: Tvrtko Ursulin Signed-off-by: Michel Thierry Signed-off-by: Carlos Santa --- drivers/gpu/drm/i915/i915_gem_context.c | 12 ++++++++++-- include/uapi/drm/i915_drm.h | 6 +++++- 2 files changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index 459f8eae1c39..cbfe8f2eb3f2 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -1889,6 +1889,8 @@ int i915_gem_context_reset_stats_ioctl(struct drm_device *dev, struct drm_i915_private *dev_priv = to_i915(dev); struct drm_i915_reset_stats *args = data; struct i915_gem_context *ctx; + struct intel_engine_cs *engine; + enum intel_engine_id id; int ret; if (args->flags || args->pad) @@ -1907,10 +1909,16 @@ int i915_gem_context_reset_stats_ioctl(struct drm_device *dev, * we should wrap the hangstats with a seqlock. */ - if (capable(CAP_SYS_ADMIN)) + if (capable(CAP_SYS_ADMIN)) { args->reset_count = i915_reset_count(&dev_priv->gpu_error); - else + for_each_engine(engine, dev_priv, id) + args->reset_engine_count += + i915_reset_engine_count(&dev_priv->gpu_error, + engine); + } else { args->reset_count = 0; + args->reset_engine_count = 0; + } args->batch_active = atomic_read(&ctx->guilty_count); args->batch_pending = atomic_read(&ctx->active_count); diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index cc03ef9f885f..3f2c89740b0e 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -1642,7 +1642,11 @@ struct drm_i915_reset_stats { /* Number of batches lost pending for execution, for this context */ __u32 batch_pending; - __u32 pad; + union { + __u32 pad; + /* Engine resets since boot/module reload, for all contexts */ + __u32 reset_engine_count; + }; }; struct drm_i915_gem_userptr {