From patchwork Fri Jun 21 10:15:53 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Andrzej Siewior X-Patchwork-Id: 2761401 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id E0B789F756 for ; Fri, 21 Jun 2013 10:41:09 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 10848201EA for ; Fri, 21 Jun 2013 10:41:09 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id C6D8E2004F for ; Fri, 21 Jun 2013 10:41:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8E33EE6574 for ; Fri, 21 Jun 2013 03:41:07 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org X-Greylist: delayed 1492 seconds by postgrey-1.32 at gabe; Fri, 21 Jun 2013 03:40:57 PDT Received: from Galois.linutronix.de (www.linutronix.de [62.245.132.108]) by gabe.freedesktop.org (Postfix) with ESMTP id 6EC68E64EF; Fri, 21 Jun 2013 03:40:57 -0700 (PDT) Received: from localhost ([127.0.0.1] helo=localhost.localdomain) by Galois.linutronix.de with esmtp (Exim 4.72) (envelope-from ) id 1UpyNv-0005MU-Jx; Fri, 21 Jun 2013 12:16:03 +0200 From: Sebastian Andrzej Siewior To: Daniel Vetter Date: Fri, 21 Jun 2013 12:15:53 +0200 Message-Id: <1371809753-16052-1-git-send-email-bigeasy@linutronix.de> X-Mailer: git-send-email 1.8.3.1 X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1, SHORTCIRCUIT=-0.0001 Cc: David Airlie , intel-gfx@lists.freedesktop.org, Sebastian Andrzej Siewior , dri-devel@lists.freedesktop.org Subject: [Intel-gfx] [PATCH] drm/i915: move i915_trace_irq_get() out of the tracing macro X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org X-Spam-Status: No, score=-5.7 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP There is a report on RT about "BUG: scheduling while atomic" because the sleeping lock is taken in tracing context. This patch simply moves locking operation out of the tracing macro. Reported-by: Joakim Hernberg [C.Emde@osadl.org: pull out seqno and define it so it compiled] Signed-off-by: Sebastian Andrzej Siewior --- drivers/gpu/drm/i915/i915_gem_execbuffer.c | 5 ++++- drivers/gpu/drm/i915/i915_trace.h | 1 - drivers/gpu/drm/i915/intel_ringbuffer.h | 2 ++ 3 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 87a3227..fa5b45f 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -844,6 +844,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data, struct intel_ring_buffer *ring; u32 ctx_id = i915_execbuffer2_get_context_id(*args); u32 exec_start, exec_len; + u32 seqno; u32 mask, flags; int ret, mode, i; bool need_relocs; @@ -1081,7 +1082,9 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data, goto err; } - trace_i915_gem_ring_dispatch(ring, intel_ring_get_seqno(ring), flags); + seqno = intel_ring_get_seqno(ring); + trace_i915_gem_ring_dispatch(ring, seqno, flags); + i915_trace_irq_get(ring, seqno); i915_gem_execbuffer_move_to_active(&eb->objects, ring); i915_gem_execbuffer_retire_commands(dev, file, ring, batch_obj); diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h index 3db4a68..29217db 100644 --- a/drivers/gpu/drm/i915/i915_trace.h +++ b/drivers/gpu/drm/i915/i915_trace.h @@ -244,7 +244,6 @@ TRACE_EVENT(i915_gem_ring_dispatch, __entry->ring = ring->id; __entry->seqno = seqno; __entry->flags = flags; - i915_trace_irq_get(ring, seqno); ), TP_printk("dev=%u, ring=%u, seqno=%u, flags=%x", diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 799f04c..13ffe58 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -262,8 +262,10 @@ static inline u32 intel_ring_get_seqno(struct intel_ring_buffer *ring) static inline void i915_trace_irq_get(struct intel_ring_buffer *ring, u32 seqno) { +#ifdef CONFIG_TRACEPOINTS if (ring->trace_irq_seqno == 0 && ring->irq_get(ring)) ring->trace_irq_seqno = seqno; +#endif } /* DRI warts */