The framebuffer needs to be unpinned in the crtc->disable callback
because of previous pinning in psb_intel_pipe_set_base(). This will fix
a memory leak where the framebuffer was released but not unpinned
properly. This patch only affects Poulsbo.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=889511
Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=812113
Cc: stable@vger.kernel.org
Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

Old code assumed framebuffer starts at base of stolen memory. Since the
addition of hardware cursors, this might not be true anymore so add the
gtt offset to the calculation.
Reported-by: NHolger Schurig <holgerschurig@gmail.com>
Tested-by: NHolger Schurig <holgerschurig@gmail.com>
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

By having a higher max resolution we can now set up a virtual
framebuffer that spans several monitors. 4096 should be ok since we're
gen 3 or higher and should be enough for most dual head setups.
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

Backlight hotkeys weren't working before on certain cedartrail laptops.

The source of this problem is that the hotkeys' ASLE opregion interrupts
were simply ignored. Driver seemed to expect the interrupt to be
associated with a pipe, but it wasn't.

Accepting the ASLE interrupt without an associated pipe event flag fixes
the issue, the backlight code is called when needed, making the
brightness keys work properly.

[patrik: This patch affects irq handling on any netbook with opregion support]

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=833597
Reference: http://lists.freedesktop.org/archives/dri-devel/2012-July/025279.html
Cc: stable@kernel.org
Signed-off-by: NAnisse Astier <anisse@astier.eu>
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

This makes it easier to see what's going on during resume/restore.
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

This patch fixes a bug introduced by:

commit 749387dc
Author: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Date:   Sun Apr 7 16:35:50 2013 +0200
drm/gma500: Fix hibernation problems on sdvo encoders

The bug is triggered when we do a mode set on a sdvo encoder with all
connectors in the disconnected state. A crtc is considered enabled by
drm even though all of its connectors are disconnected. Work around
this by adding a check in our sdvo restore function.

Also remove the unneeded dpms on. Prepare and Commit will take care of
that.
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

Last version of this patch is not clear enough and X86 duplicated.

This patch fixes build failure of v3.9-rc5 and rc6.
When config ACPI_VIDEO as m, DRM_GMA500 as y, here comes the failure.
GMA5/600 needs acpi_video just like nouveau.
And some tab type fix by the way.

Failure message:
drivers/built-in.o: In function `psb_driver_load':
kernel-3.9-rc5/drivers/gpu/drm/gma500/psb_drv.c:340: \
	undefined reference to `acpi_video_register'
make: *** [vmlinux] Error 1
Signed-off-by: NXiong Zhou <jencce.kernel@gmail.com>
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

The state of the SDVO chip is more difficult to save than the LVDS so we do a
full mode set on the crtc to get SDVO operational again. The SDVOB/C register is
also stored just in case we have special bits set in the future.
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

Currently we do whatever is done during suspend/resume but we might need some
more work for hibernation so keep them in separate functions.
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

This patch activates the rebuilding of the gtt. Currently we reinitialize the
gtt by inserting the stolen pages again and map the rest to our scratch page.
Then we go about restoring the needed ranges. This is a bit overkill but right
now we don't have that much to restore so better safe than sorry.
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

By having 'drm' and 'fb' in the fb screeninfo id, pm-utils will leave us
alone. Otherwise we'll have quirks up to our ears and resume will break.
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

Both VGA and HDMI connectors are available on my Asus EeePC X101CH.
This patch will cause output to be shown on either when plugged in.
For both, it shows the leftmost 800x600, of the 1024x600 on LVDS.
Signed-off-by: NKero van Gelder <kero@chello.nl>
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

Remove unused defines that we'll never use and fix naming in some include guards
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

psb_intel_crtc_gamma_set() and psb_intel_crtc_destroy() aren't used outside of
psb_intel_display.c right now so no need to expose them.
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

This makes it easier to read. We do the same for cdv so it becomes more
consistent as well.
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

i9xx_clock() and i8xx_clock() did the same calc and psb_intel_clock() just
called i9xx_clock() so just move it all into psb_intel_clock().

The same calculation is duplicated in cdv_intel_display.c as well so maybe we
can share it later on.
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

The use of pointer sender should be after the NULL check.
Signed-off-by: NSyam Sidhardhan <s.syam@samsung.com>
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

Replaced calls kzalloc followed by memcpy with call to kmemdup.
Patch found using coccinelle.
Signed-off-by: NAlexandru Gheorghiu <gheorghiuandru@gmail.com>
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

commit f9f23a77(gma500: remove no_fb bits)
remove all the drm_psb_no_fb relations code in gma500 except this line code,
so remove it also.
Signed-off-by: NWang YanQing <udknight@gmail.com>
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

The values of n, m1 and m2 needs to be subtracted by 2 before writing them to
the FP register. The dot clock calculation already thinks of these values in
register form so we must also specify them as such.
Signed-off-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

The fb helper lost its support for reallocating an fb completely, so
no need to return special success values any more.
Reviewed-by: NRob Clark <robdclark@gmail.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

This should be done in the drivers for two reasons:
- it gets in the way of fastboot efforts
- it links the fb helpers with the crtc helpers instead of going
  through the real interface vfuncs, forcing i915 to fake all the
  ->disable callbacks used by the crtc helper to avoid ugly Oopsen

v2: Resolve conflicts since drivers still call
drm_fb_helper_single_add_all_connectors.
Reviewed-by: NRob Clark <robdclark@gmail.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

There's no reason kgdb.h itself needs to include the 8250 serial port
header file.  So push it down to the _very_ limited number of individual
drivers that need the values in that file, and fix up the places where
people really wanted serial_core.h and platform_device.h.
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

CC: Dave Airlie <airlied@redhat.com>
CC: Alan Cox <alan@linux.intel.com>
CC: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Signed-off-by: NKees Cook <keescook@chromium.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

We have two classes of framebuffer
- Created by the driver (atm only for fbdev), and the driver holds
  onto the last reference count until destruction.
- Created by userspace and associated with a given fd. These
  framebuffers will be reaped when their assoiciated fb is closed.

Now these two cases are set up differently, the framebuffers are on
different lists and hence destruction needs to clean up different
things. Also, for userspace framebuffers we remove them from any
current usage, whereas for internal framebuffers it is assumed that
the driver has done this already.

Long story short, we need two different ways to cleanup such drivers.
Three functions are involved in total:
- drm_framebuffer_remove: Convenience function which removes the fb
  from all active usage and then drops the passed-in reference.
- drm_framebuffer_unregister_private: Will remove driver-private
  framebuffers from relevant lists and drop the corresponding
  references. Should be called for driver-private framebuffers before
  dropping the last reference (or like for a lot of the drivers where
  the fbdev is embedded someplace else, before doing the cleanup
  manually).
- drm_framebuffer_cleanup: Final cleanup for both classes of fbs,
  should be called by the driver's ->destroy callback once the last
  reference is gone.

This patch just rolls out the new interfaces and updates all drivers
(by adding calls to drm_framebuffer_unregister_private at all the
right places)- no functional changes yet. Follow-on patches will move
drm core code around and update the lifetime management for
framebuffers, so that we are no longer required to keep framebuffers
alive by locking mode_config.mutex.

I've also updated the kerneldoc already.

vmwgfx seems to again be a bit special, at least I haven't figured out
how the fbdev support in that driver works. It smells like it's
external though.

v2: The i915 driver creates another private framebuffer in the
load-detect code. Adjust its cleanup code, too.
Reviewed-by: NRob Clark <rob@ti.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

Only two places:
- suspend/resume
- Some really strange mode validation tool with too much funny-lucking
  hand-rolled conversion code.
- The recently-added lastclose fbdev restore code.

Better safe than sorry, so convert both places to keep the locking
semantics as much as possible.
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

Doing this within the fb->destroy callback leads to a locking
nightmare. And all other drm drivers that restore the fbcon do
it in lastclose, too.

With this adjustments all fb->destroy callbacks optionally drop
references to any gem objects used as backing storage, call
drm_framebuffer_cleanup and then kfree the struct. Which nicely
simplifies the locking for framebuffer unreferencing and freeing,
since this doesn't require that we hold the mode_config lock. A
slight exception is the vmwgfx surface backed framebuffer, it also
calls drm_master_put and removes the object from a device-private
framebuffer list. Both seem to have solid locking in place already.

Conclusion is that now it is no longer required to hold the
mode_config lock while freeing a framebuffer.

v2: Drop the corresponding mutex_lock WARN check from
drm_framebuffer_unreference.

v3: Use just the mode_config lock not modeset_lock_all, due to patch
reordering.
Acked-by: NAlan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

With more fine-grained locking we can no longer rely on the big
mode_config lock to prevent concurrent access to mode resources
like framebuffers. Instead a framebuffer becomes accessible to
other threads as soon as it is added to the relevant lookup
structures. Hence it needs to be fully set up by the time drivers
call drm_framebuffer_init.

This patch here is the drivers part of that reorg. Nothing really fancy
going on safe for three special cases.

- exynos needs to be careful to properly unref all handles.
- nouveau gets a resource leak fixed for free: one of the error
  cases didn't cleanup the framebuffer, which is now moot since
  the framebuffer is only registered once it is fully set up.
- vmwgfx requires a slight reordering of operations, I'm hoping I didn't
  break anything (but it's refcount management only, so should be safe).

v2: Split out exynos, since it's a bit more hairy than expected.

v3: Drop bogus cirrus hunk noticed by Richard Wilbur.

v4: Split out vmwgfx since there's a small change in return values.

Reviewed-by: Rob Clark <rob@ti.com> (core + omapdrm)
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, and __devexit
from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: NRob Clark <rob@ti.com>

Drop the NULL test for dev since it never be NULL.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

There are still some mysteries left, in particular how (and in
fact if) the EDID is supposed to work on the HDMI port. However
the basic stuff now works and I can plug my Q550 into an HDMI
display and get the expected results.

[v2: cleans up space/tab and other formatting as per Dave's
 request]
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

A long time ago, in v2.4, VM_RESERVED kept swapout process off VMA,
currently it lost original meaning but still has some effects:

 | effect                 | alternative flags
-+------------------------+---------------------------------------------
1| account as reserved_vm | VM_IO
2| skip in core dump      | VM_IO, VM_DONTDUMP
3| do not merge or expand | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP
4| do not mlock           | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP

This patch removes reserved_vm counter from mm_struct.  Seems like nobody
cares about it, it does not exported into userspace directly, it only
reduces total_vm showed in proc.

Thus VM_RESERVED can be replaced with VM_IO or pair VM_DONTEXPAND | VM_DONTDUMP.

remap_pfn_range() and io_remap_pfn_range() set VM_IO|VM_DONTEXPAND|VM_DONTDUMP.
remap_vmalloc_range() set VM_DONTEXPAND | VM_DONTDUMP.

[akpm@linux-foundation.org: drivers/vfio/pci/vfio_pci.c fixup]
Signed-off-by: NKonstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Carsten Otte <cotte@de.ibm.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Eric Paris <eparis@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Morris <james.l.morris@oracle.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Kentaro Takeda <takedakn@nttdata.co.jp>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Venkatesh Pallipadi <venki@google.com>
Acked-by: NLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Convert #include "..." to #include <path/...> in drivers/gpu/.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Acked-by: NDave Airlie <airlied@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NThomas Gleixner <tglx@linutronix.de>
Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: NDave Jones <davej@redhat.com>

Remove redundant DRM UAPI header #inclusions from drivers/gpu/.

Remove redundant #inclusions of core DRM UAPI headers (drm.h, drm_mode.h and
drm_sarea.h).  They are now #included via drmP.h and drm_crtc.h via a preceding
patch.

Without this patch and the patch to make include the UAPI headers from the core
headers, after the UAPI split, the DRM C sources cannot find these UAPI headers
because the DRM code relies on specific -I flags to make #include "..."  work
on headers in include/drm/ - but that does not work after the UAPI split without
adding more -I flags.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Acked-by: NDave Airlie <airlied@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NThomas Gleixner <tglx@linutronix.de>
Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: NDave Jones <davej@redhat.com>

This patch removes a unused struct psb_intel_connector

Sparse gives a warning:
drivers/gpu/drm/gma500/cdv_intel_hdmi.c:142:30: warning:
	unused variable ‘psb_intel_connector’ [-Wunused-variable]
Signed-off-by: NEmil Goode <emilgoode@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

The register map patches didn't set one value for the GMA600 which
means the Fujitsu Q550 dies on boot with the GMA500 driver enabled.

Add the map entry so we don't read from the device MMIO + 0 by mistake.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Cc: Horses <stable@vger.kernel.org>
Signed-off-by: NDave Airlie <airlied@redhat.com>