linux-kernel - Re: [Intel-gfx] linux-next: Tree for Jul 25 [ call-trace: drm

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Date:	Fri, 26 Jul 2013 11:16:04 +0200
From:	Daniel Vetter <daniel.vetter@...ll.ch>
To:	Sedat Dilek <sedat.dilek@...il.com>,
	David Herrmann <dh.herrmann@...il.com>
Cc:	Chris Wilson <chris@...is-wilson.co.uk>,
	Jani Nikula <jani.nikula@...ux.intel.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	intel-gfx <intel-gfx@...ts.freedesktop.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	DRI <dri-devel@...ts.freedesktop.org>,
	linux-next <linux-next@...r.kernel.org>
Subject: Re: [Intel-gfx] linux-next: Tree for Jul 25 [ call-trace: drm |
 drm-intel related? ]

On Fri, Jul 26, 2013 at 11:11 AM, Sedat Dilek <sedat.dilek@...il.com> wrote:

> I have compared next-20130725 VS. next-20130726:
>
> $ head -2313 next-20130725-VS-next-20130726.diff | grep ^+ | grep i915
> +      drm/i915: Colocate all GT access routines in the same file
> +      drm/i915: Use a private interface for register access within GT
> +      drm/i915: Use the common register access functions for NOTRACE variants
> +      drm/i915: Squash gen lookup through multiple indirections
> inside GT access
> +      drm/i915: Convert the register access tracepoint to be conditional
> +      drm/i915: fix the racy object accounting
> +      drm/i915: dvo_ch7xxx: fix vsync polarity setting
> +      drm/i915: initialize gt_lock early with other spin locks
> +      Revert "ACPI / video / i915: No ACPI backlight if firmware
> expects Windows 8"
> + drivers/gpu/drm/i915/Makefile                      |    2 +
> + drivers/gpu/drm/i915/dvo_ch7xxx.c                  |    2 +-
> + drivers/gpu/drm/i915/i915_debugfs.c                |  836 +--
> + drivers/gpu/drm/i915/i915_dma.c                    |   91 +-
> + drivers/gpu/drm/i915/i915_drv.c                    |  292 +-
> + drivers/gpu/drm/i915/i915_drv.h                    |  413 +-
> + drivers/gpu/drm/i915/i915_gem.c                    |  411 +-
> + drivers/gpu/drm/i915/i915_irq.c                    | 1347 ++---
> + drivers/gpu/drm/i915/i915_trace.h                  |   16 +-
> + drivers/gpu/drm/i915/intel_display.c               | 1065 ++--
> + drivers/gpu/drm/i915/intel_drv.h                   |   36 +-
> + drivers/gpu/drm/i915/intel_pm.c                    |  431 +-
> + drivers/gpu/drm/i915/intel_uncore.c                |  595 +++
>
> Any hints which of the commits could be culprit?

None, it's the vma offset manager stuff in drm-next.

diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 3613b50..1f76572 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -666,7 +666,7 @@ int drm_gem_mmap(struct file *filp, struct
vm_area_struct *vma)
        }

        obj = container_of(node, struct drm_gem_object, vma_node);
-       ret = drm_gem_mmap_obj(obj, drm_vma_node_size(node), vma);
+       ret = drm_gem_mmap_obj(obj, drm_vma_node_size(node) << PAGE_SHIFT, vma);

        mutex_unlock(&dev->struct_mutex);


That should fix stuff up again, David Herrmann is working on a real
patch already.

Cheers, Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
--
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