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authorDaniel Vetter <daniel.vetter@ffwll.ch>2015-04-01 13:43:46 +0200
committerJani Nikula <jani.nikula@intel.com>2015-04-14 17:03:12 +0300
commit37ef01ab5d24d1d520dc79f6a98099d451c2a901 (patch)
treeed1e53e3d615e3189d81151e03ed7eec350b57e0
parente0d6149b3debce1a7e17dfda7c2829935917dc58 (diff)
drm/i915: Dont enable CS_PARSER_ERROR interrupts at alldrm-intel-next-fixes-2015-04-15
We stopped handling them in commit aaecdf611a05cac26a94713bad25297e60225c29 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Tue Nov 4 15:52:22 2014 +0100 drm/i915: Stop gathering error states for CS error interrupts but just clearing is apparently not enough: A sufficiently dead gpu left behind by firmware (*cough* coreboot *cough*) can keep the gpu in an endless loop of such interrupts, eventually leading to the nmi firing. And definitely to what looks like a machine hang. Since we don't even enable these interrupts on gen5+ let's do the same on earlier platforms. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=93171 Tested-by: Mono <mono-for-kernel-org@donderklumpen.de> Tested-by: info@gluglug.org.uk Cc: stable@vger.kernel.org Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
-rw-r--r--drivers/gpu/drm/i915/i915_irq.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 14ecb4d13a1a..6d494432b19f 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -3598,14 +3598,12 @@ static int i8xx_irq_postinstall(struct drm_device *dev)
~(I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
- I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT |
- I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT);
+ I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT);
I915_WRITE16(IMR, dev_priv->irq_mask);
I915_WRITE16(IER,
I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
- I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT |
I915_USER_INTERRUPT);
POSTING_READ16(IER);
@@ -3767,14 +3765,12 @@ static int i915_irq_postinstall(struct drm_device *dev)
I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
- I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT |
- I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT);
+ I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT);
enable_mask =
I915_ASLE_INTERRUPT |
I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
- I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT |
I915_USER_INTERRUPT;
if (I915_HAS_HOTPLUG(dev)) {

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