From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clark Williams Subject: Re: [ANNOUNCE] 4.0.4-rt1 Date: Tue, 26 May 2015 08:34:49 -0500 Message-ID: <20150526083449.5357059b@sluggy> References: <20150519213923.GA26363@linutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: linux-rt-users , LKML , Thomas Gleixner , rostedt@goodmis.org, John Kacur To: Sebastian Andrzej Siewior Return-path: In-Reply-To: <20150519213923.GA26363@linutronix.de> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-rt-users.vger.kernel.org On Tue, 19 May 2015 23:39:23 +0200 Sebastian Andrzej Siewior wrote: > Dear RT folks! > > I'm pleased to announce the v4.0.4-rt1 patch set. > Sebastian, The i915 driver has a 'WARN_ON(!in_interrupt())' in the display handler, which whines constantly on the RT kernel (since the interrupt is actually handled in a threaded handler and not actual interrupt context). Ifdef it out for PREEMPT_RT_FULL. Signed-off-by: Clark Williams --- drivers/gpu/drm/i915/intel_display.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index f75173c20f47..f532b22f56ba 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -9745,7 +9745,9 @@ void intel_check_page_flip(struct drm_device *dev, int pipe) struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); +#ifndef CONFIG_PREEMPT_RT_FULL WARN_ON(!in_interrupt()); +#endif if (crtc == NULL) return;