Ville Syrjälä ac840ae535 drm/i915: Re-enable GGTT earlier during resume on pre-gen6 platforms ... Move the intel_enable_gtt() call to happen before we touch the GTT during resume. Right now it's done way too late. Before commit ebb7c78d35 ("agp/intel-gtt: Only register fake agp driver for gen1") it was actually done earlier on account of also getting called from the resume hook of the fake agp driver. With the fake agp driver no longer getting registered we must move the call up. The symptoms I've seen on my 830 machine include lowmem corruption, other kinds of memory corruption, and straight up hung machine during or just after resume. Not really sure what causes the memory corruption, but so far I've not seen any with this fix. I think we shouldn't really need to call this during init, but we have been doing that so I've decided to keep the call. However moving that call earlier could be prudent as well. Doing it right after the intel-gtt probe seems appropriate. Also tested this on 946gz,elk,ilk and all seemed quite happy with this change. v2: Reorder init_hw vs. enable_hw functions (Chris) Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: drm-intel-fixes@lists.freedesktop.org Fixes: ebb7c78d35 ("agp/intel-gtt: Only register fake agp driver for gen1") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1462559755-353-1-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>		2016-05-10 12:29:33 +03:00
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drm	drm/i915: Re-enable GGTT earlier during resume on pre-gen6 platforms	2016-05-10 12:29:33 +03:00
host1x	Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux	2016-03-21 13:48:00 -07:00
ipu-v3	gpu: ipu-v3: ipu-dmfc: Rename ipu_dmfc_init_channel to ipu_dmfc_config_wait4eot	2016-03-31 11:24:33 +02:00
vga	vga_switcheroo: Add support for switching only the DDC	2016-02-09 11:21:07 +01:00
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