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| author |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-10-23 10:56:12 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-10-23 11:55:14 +0200 |
| commit | 97e5ed1111dcc5300a0f59a55248cd243937a8ab (patch) | |
| tree | 65a789e2363dfc56b6b31f7dbb82fec8a6db8326 /drivers/gpu/drm/i915/i915_irq.c | |
| parent | drm/i915: Grab execlist spinlock to avoid post-reset concurrency issues. (diff) | |
| download | linux-dev-97e5ed1111dcc5300a0f59a55248cd243937a8ab.tar.xz linux-dev-97e5ed1111dcc5300a0f59a55248cd243937a8ab.zip | |
drm/i915: shut up gen8+ SDE irq dmesg noise
We get tons of cases where the master interrupt handler apparently set
a bit, with the SDEIIR disagreeing. No idea what's going on there, but
it's consistent on gen8+, no one seems to care about it and it's
making CI results flaky.
Shut it up.
No idea what's going on here, but we've had fun with PCH interrupts
before:
commit 44498aea293b37af1d463acd9658cdce1ecdf427
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Fri Feb 22 17:05:28 2013 -0300
drm/i915: also disable south interrupts when handling them
Note that there's a regression report in Bugzilla, and other
regression reports on the mailing lists keep croping up. But no ill
effects have ever been reported. But for paranoia still keep the
message at a debug level as a breadcrumb, just in case.
This message was introduced in
commit 38cc46d73ed99dd7002f1406002e52d7975d16cc
Author: Oscar Mateo <oscar.mateo@intel.com>
Date: Mon Jun 16 16:10:59 2014 +0100
drm/i915/bdw: Ack interrupts before handling them (GEN8)
v2: Improve commit message a bit.
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1445590572-23631-2-git-send-email-daniel.vetter@ffwll.ch
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92084
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80896
Acked-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index a2bcdcffbfcf..bd1962527687 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -2353,9 +2353,13 @@ static irqreturn_t gen8_irq_handler(int irq, void *arg) spt_irq_handler(dev, pch_iir); else cpt_irq_handler(dev, pch_iir); - } else - DRM_ERROR("The master control interrupt lied (SDE)!\n"); - + } else { + /* + * Like on previous PCH there seems to be something + * fishy going on with forwarding PCH interrupts. + */ + DRM_DEBUG_DRIVER("The master control interrupt lied (SDE)!\n"); + } } I915_WRITE_FW(GEN8_MASTER_IRQ, GEN8_MASTER_IRQ_CONTROL); |