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| author |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-06-05 16:20:46 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-06-09 21:03:47 +0200 |
| commit | a4de05268e674e8ed31df6348269e22d6c6a1803 (patch) | |
| tree | dac2230e1d8bbc65f9be00a6dec0c7c9952d6923 /drivers/video/console | |
| parent | drm/i915: Fixup global gtt cleanup (diff) | |
| download | wireguard-linux-a4de05268e674e8ed31df6348269e22d6c6a1803.tar.xz wireguard-linux-a4de05268e674e8ed31df6348269e22d6c6a1803.zip | |
drm/i915: Kick out vga console
Touching the VGA resources on an IVB EFI machine causes hard hangs when
we then kick out the efifb. Ouch.
Apparently this also prevents unclaimed register errors on hsw and
hard machine hangs on my i855gm when trying to unbind fbcon.
Also, we want this to make I915_FBDEV=n safe.
v2: Rebase and pimp commit message.
v3: We also need to unregister the vga console, otherwise the unbind
of the fb console before module unload might resurrect it again.
v4: Ignore errors when the vga console is already unregistered - this
can happen when e.g. reloading i915.ko.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67813
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> (v1)
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/console')
| -rw-r--r-- | drivers/video/console/dummycon.c | 1 | ||||
| -rw-r--r-- | drivers/video/console/vgacon.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c index b63860f7beab..40bec8d64b0a 100644 --- a/drivers/video/console/dummycon.c +++ b/drivers/video/console/dummycon.c @@ -77,3 +77,4 @@ const struct consw dummy_con = { .con_set_palette = DUMMY, .con_scrolldelta = DUMMY, }; +EXPORT_SYMBOL_GPL(dummy_con); diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c index 9d8feac67637..84acd6223dc5 100644 --- a/drivers/video/console/vgacon.c +++ b/drivers/video/console/vgacon.c @@ -1440,5 +1440,6 @@ const struct consw vga_con = { .con_build_attr = vgacon_build_attr, .con_invert_region = vgacon_invert_region, }; +EXPORT_SYMBOL(vga_con); MODULE_LICENSE("GPL"); |