Commit Graph

376393 Commits

Author SHA1 Message Date
Marcelo Tosatti
7e6d72c15f vgacon.c: add cond reschedule points in vgacon_do_font_op
Booting a 64-vcpu KVM guest, with CONFIG_PREEMPT_VOLUNTARY,
can result in a soft lockup:

BUG: soft lockup - CPU#41 stuck for 67s! [setfont:1505]
 RIP: 0010:[<ffffffff812c48da>]
[<ffffffff812c48da>] vgacon_do_font_op.clone.0+0x1ba/0x550

This is due to the 8192 (cmapsz) IO operations taking longer than expected
due to lock contention in QEMU.

Add conditional resched points in between writes allowing other tasks to
execute.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-26 16:27:55 +10:00
Daniel Vetter
5cef29aa52 drm: fix fb leak in setcrtc
Drivers are allowed (actually have to) disable unrelated crtcs in
their ->set_config callback (when we steal all the connectors from
that crtc). If they do that they'll clear crtc->fb to NULL.

Which results in a refcount leak, since the drm core is keeping track
of that reference.

To fix this track the old fb of all crtcs and adjust references for
all of them. Of course, since we only hold an additional reference for
the fb for the current crtc we need to increase refcounts before we
drop the old one.

This approach has the benefit that it inches us a bit closer to an
atomic modeset world, where we want to update the config of all crtcs
in one step.

This regression has been introduce in the framebuffer refcount
conversion, specifically in

commit b0d1232589
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Tue Dec 11 01:07:12 2012 +0100

    drm: refcounting for crtc framebuffers

Reported-by: Russell King <linux@arm.linux.org.uk>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-25 13:04:11 +10:00
Daniel Vetter
cc85e1217f drm: check that ->set_config properly updates the fb
Historically drm lacked fb refcounting, so the updating of crtc->fb
was done by the lower levels at a point convenient to get their own
refcounting (e.g. refcounts for the underlying gem bo, pinning
refcounts) right. With the introduction of refcounted fbs the drm core
handled the fb refcounts, but still relied on drivers to update the
crtc->fb pointer (this approach required the least invasive changes in
drivers).

Enforce this contract with a WARN_ON.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-25 13:04:10 +10:00
Daniel Vetter
372835a852 drm/crtc-helper: explicit DPMS on after modeset
Atm the crtc helper implementation of set_config has really
inconsisten semantics: If just an fb update is good enough, dpms state
will be left as-is, but if we do a full modeset we force everything to
dpms on.

This change has already been applied to the i915 modeset code in

commit e3de42b684
Author: Imre Deak <imre.deak@intel.com>
Date:   Fri May 3 19:44:07 2013 +0200

    drm/i915: force full modeset if the connector is in DPMS OFF mode

which according to Greg KH seems to aim for a new record in most
Bugzilla: links in a commit message.

The history of this dpms forcing is pretty interesting. This patch
here is an almost-revert of

commit 811aaa55ba
Author: Keith Packard <keithp@keithp.com>
Date:   Thu Feb 3 16:57:28 2011 -0800

    drm: Only set DPMS ON when actually configuring a mode

which fixed the bug of trying to dpms on disabled outputs, but
introduced the new discrepancy between an fb update only and full
modesets. The actual introduction of this goes back to

commit bf9dc102e2
Author: Keith Packard <keithp@keithp.com>
Date:   Fri Nov 26 10:45:58 2010 -0800

    drm: Set connector DPMS status to ON in drm_crtc_helper_set_config

And if you'd dig around in the i915 driver code there's even more fun
around forcing dpms on and losing our heads and temper of the
resulting inconsistencies. Especially the DP re-training code had tons
of funny stuff in it.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-25 11:01:30 +10:00
Daniel Vetter
cbdfebc972 drm/crtc-helper: no need to check for fb->depth/bpp
... since we already check for fb->pixel_format, which encodes all
this. The other two fields are only for backwards compat of older
drivers (and we might want to look into eventually just killing them).

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-25 11:01:09 +10:00
Daniel Vetter
e58de88078 drm/crtc-helpers: Enforce sane set_config api
There's no point in trying to clean up after driver-bugs, so just blow
up. Furthermore it's an interface abuse to set no mode but have an fb
and aslo to try to set an fb without enough connectors. These two
spefici cases of interface abuse have been committed by the fb helper,
but that's been fixed meanwhile in

commit 7e53f3a423
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Mon Jan 21 10:52:17 2013 +0100

    drm/fb-helper: fixup set_config semantics

The i915 driver has been shipping since a while with these BUGs with
no reports, so should be save.

Note that this drops an ugly case where we clear crtc->fb behind the
upper levels back and so cause a refcounting mayhem, which Russell
Kins spotted while trying to hunt down a drm framebuffer leak.

Reported-by: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-25 11:00:53 +10:00
Al Viro
fdcdec06a3 drm_vm: drop explicit VM_IO setting
io_remap_pfn_range already sets this internally.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-24 06:26:50 +10:00
Benoit Parrot
dc28aa072f gpu:drm:tilcdc: get preferred_bpp value from DT
The preferred_bpp value in currently hard-coded to 16.
This causes color corruption on the am335x-evm lcd panel which
requires 32 bpp instead. This changes attempts to use the configured
bpp value from the DT or built-in panel-info struct.

Signed-off-by: Benoit Parrot <bparrot@ti.com>
Acked-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-20 14:08:01 +10:00
Laurent Pinchart
d6f76f3707 drm/shmobile: Drop usage of removed drm_plane enabled field
The enabled field has been removed from struct drm_plane. Don't use it
in the driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-20 14:06:39 +10:00
Christopher Harvey
279119776d drm/mgag200: Don't do full cleanup if mgag200_device_init fails
Running mgag200_driver_unload when the driver init fails early on
causes functions like drm_mode_config_cleanup to be called. The
problem is, drm_mode_config_cleanup crashes because the corresponding
init hasn't happend yet. There really isn't anything to cleanup after
mgag200_device_init, so we can just pass the error code upwards.

Acked-by: Julia Lemire <jlemire@matrox.com>
Signed-off-by: Christopher Harvey <charvey@matrox.com>
Acked-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-06-17 19:42:49 +10:00
Christopher Harvey
a080db9fdd drm/mgag200: Hardware cursor support
G200 cards support, at best, 16 colour palleted images for the cursor
so we do a conversion in the cursor_set function, and reject cursors
with more than 16 colours, or cursors with partial transparency. Xorg
falls back gracefully to software cursors in this case.

We can't disable/enable the cursor hardware without causing momentary
corruption around the cursor. Instead, once the cursor is on we leave
it on, and simulate turning the cursor off by moving it
offscreen. This works well.

Since we can't disable -> update -> enable the cursors, we double
buffer cursor icons, then just move the base address that points to
the old cursor, to the new. This also works well, but uses an extra
page of memory.

The cursor buffers are lazily-allocated on first cursor_set. This is
to make sure they don't take priority over any framebuffers in case of
limited memory.

Here is a representation of how the bitmap for the cursor is mapped in G200 memory :

  Each line of color cursor use 6 Slices of 8 bytes. Slices 0 to 3
  are used for the 4bpp bitmap, slice 4 for XOR mask and slice 5 for
  AND mask. Each line has the following format:

      //      Byte 0  Byte 1  Byte 2  Byte 3  Byte 4  Byte 5  Byte 6 Byte 7
      //
      // S0:  P00-01  P02-03  P04-05  P06-07  P08-09  P10-11  P12-13 P14-15
      // S1:  P16-17  P18-19  P20-21  P22-23  P24-25  P26-27  P28-29 P30-31
      // S2:  P32-33  P34-35  P36-37  P38-39  P40-41  P42-43  P44-45 P46-47
      // S3:  P48-49  P50-51  P52-53  P54-55  P56-57  P58-59  P60-61 P62-63
      // S4:  X63-56  X55-48  X47-40  X39-32  X31-24  X23-16  X15-08 X07-00
      // S5:  A63-56  A55-48  A47-40  A39-32  A31-24  A23-16  A15-08 A07-00
      //
      //       S0 to S5      = Slices 0 to 5
      //       P00 to P63    = Bitmap - pixels 0 to 63
      //       X00 to X63    = always 0 - pixels 0 to 63
      //       A00 to A63    = transparent markers - pixels 0 to 63
      //                       1 means colour, 0 means transparent

Signed-off-by: Christopher Harvey <charvey@matrox.com>
Signed-off-by: Mathieu Larouche <mathieu.larouche@matrox.com>
Acked-by: Julia Lemire <jlemire@matrox.com>
Tested-by: Julia Lemire <jlemire@matrox.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-06-17 19:42:48 +10:00
Ville Syrjälä
fb85ac4da8 drm: Drop all the stub gamma_get, gamma_set, load_lut functions from drivers
Many of the drivers didn't implement palette/gamma handling, but were forced
to provide stubs for the hooks to avoid drm_fb_helper from oopsing. Now that
the hooks are optional, we can eliminate all the stubs.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-06-17 19:42:47 +10:00
Ville Syrjälä
04c0c569d4 drm/fb-helper: Make load_lut and gamma_set/gamma_get hooks optional
Check whether the crtc provides the load_lut callback before calling it.
This allows the driver to provide the hook only for those CRTCs that
actually have the hardware support for it.

Also check whether the driver provided the fb_helper gamma_set/gamma_get
hooks. It's a driver bug if it allows non-truecolor fbdev visuals w/o
these hooks, but auditing all the drivers is too tedious. So just slap
a big WARN_ON() there and bail out before things start to explode.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-06-17 19:42:47 +10:00
Ville Syrjälä
8391a3d5bc drm/fb-helper: Don't clobber the display palette when fbdev isn't bound
Perform the drm_fb_helper_is_bound() check to avoid clobbering the
display palette of some other KMS client.

While at it, fix up the locking by grabbing all modeset locks for the
duration of the fb_setcmap operation.

v2: Make a note of the locking changes in the commit message

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-06-17 19:42:46 +10:00
Ville Syrjälä
778ad903f9 drm: Remove some unused stuff from drm_plane
There's a bunch of unused members inside drm_plane, bloating the size of
the structure needlessly. Eliminate them.

v2: Remove all of it from kernel-doc too

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-06-17 19:42:46 +10:00
Ville Syrjälä
b72447cdf1 drm/i915: Drop bogus fbdev sprite disable code
plane->enabled is never set, so this code didn't do anything.

Also drm_fb_helper_restore_fbdev_mode() will now disable all cursors
and sprites for us, so we don't have to bother anymore.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-06-17 19:42:45 +10:00
Ville Syrjälä
35f2c3ae76 drm: Add kernel-doc for plane functions
v2: Follow the drm_crtc documentation fixes

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-06-17 18:34:40 +10:00
Ville Syrjälä
3858bc5d53 drm/fb-helper: Disable cursors and planes when restoring fbdev mode
Cursors and plane can obscure whatever fbdev wants to show the user.
Disable them all in drm_fb_helper_restore_fbdev_mode.

After the cursors and planes have been disabled, user space needs to
explicitly re-enable them to make them visible again.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-06-17 18:33:16 +10:00
Ville Syrjälä
9125e61868 drm: Add drm_plane_force_disable()
drm_plane_force_disable() will forcibly disable the plane even if user
had previously requested the plane to be enabled.

This can be used to force planes to be off when restoring the fbdev
mode.

The code was simply pulled from drm_framebuffer_remove(), which now
calls the new function as well.

v2: Check plane->fb in drm_plane_force_disable(), drop bogus comment
    about disabling crtc

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-06-17 18:32:54 +10:00
Ville Syrjälä
e6e792092e drm/edid: Add both 60Hz and 59.94Hz CEA modes to connector's mode list
Having both modes can be beneficial for video playback cases. If you can
match the video framerate exactly, and the audio and video clocks come
from the same source, you should be able to avoid dropped/repeated
frames without expensive operations such as resampling the audio to
match video output rate.

Rather than add both variants based on the CEA extension short video
descriptors in do_cea_modes(), add only one variant there. Once all
the EDID has been fully probed, do a loop over the entire probed mode
list, during which we add the other variants for all modes that match
CEA modes. This allows us to match modes that didn't come via the CEA
short video descriptors. For example one Samsung TV here doesn't have
the 640x480-60 mode as a SVD, but instead it's specified via a detailed
timing descriptor.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 08:51:31 +10:00
Ville Syrjälä
a5d0f5766f drm/vmwgfx: Don't access file_priv in cursor_set when handle==0
We want to disable the cursor by calling ->cursor_set() with handle=0
from places where we don't have a file_priv, so don't try to access it
unless necessary.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 08:47:32 +10:00
Ville Syrjälä
ad6f5c3433 drm: Improve drm_crtc documentation
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 08:40:37 +10:00
Dave Airlie
e6dfcc5303 Merge tag 'drm-intel-next-2013-06-01' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
Daniel writes:
Another round of drm-intel-next for 3.11. Highlights:
- Haswell IPS support (Paulo Zanoni)
- VECS support on Haswell (Ben Widawsky, Xiang Haihao, ...)
- Haswell watermark fixes (Paulo Zanoni)
- "Make the gun bigger again" multithread fence fix from Chris.
- i915_error_state finnally no longer fails with -ENOMEM! Big thanks to
  Mika for tackling this.
- vlv sideband locking fixes from Jani
- Hangcheck prep work for arb_robustness support (Mika&Chris)
- edp vs cpu port confusion clean-up from Imre
- pile of smaller fixes and cleanups all over.

* tag 'drm-intel-next-2013-06-01' of git://people.freedesktop.org/~danvet/drm-intel: (70 commits)
  drm/i915: add i915_ips_status debugfs entry
  drm/i915: add enable_ips module option
  drm/i915: implement IPS feature
  drm/i915: fix up the edp power well check
  drm/i915: add I915_PARAM_HAS_VEBOX to i915_getparam
  drm/i915: add I915_EXEC_VEBOX to i915_gem_do_execbuffer()
  drm/i915: add VEBOX into debugfs
  drm/i915: Enable vebox interrupts
  drm/i915: vebox interrupt get/put
  drm/i915: consolidate interrupt naming scheme
  drm/i915: Convert irq_refounct to struct
  drm/i915: make PM interrupt writes non-destructive
  drm/i915: Add PM regs to pre/post install
  drm/i915: Create an ivybridge_irq_preinstall
  drm/i915: Create a more generic pm handler for hsw+
  drm/i915: add support for 5/6 data buffer partitioning on Haswell
  drm/i915: properly set HSW WM_LP watermarks
  drm/i915: properly set HSW WM_PIPE registers
  drm/i915: fix pch_nop support
  drm/i915: Vebox ringbuffer init
  ...
2013-06-11 08:38:56 +10:00
Ville Syrjälä
9bc3cd5673 drm: Sort connector modes based on vrefresh
Keeping the modes sorted by vrefresh before the pixel clock makes the
mode list somehow more pleasing to the eye.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 08:35:51 +10:00
Ville Syrjälä
990256aec2 drm: Add probed modes in probe order
Keeping the modes in the same order as we probe them makes it a bit
easier to track what's happening.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 08:35:04 +10:00
Ville Syrjälä
72e45e9267 drm: Preserve the list head in drm_mode_copy
Preserve the destination mode's list head in drm_mode_copy. Just
in case someone decides that it's a good idea to overwrite a mode which
happens to be on some list,

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 08:34:23 +10:00
Thomas Meyer
f6fb754dc6 drm/cma: Cocci spatch "ptr_ret.spatch"
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 08:30:54 +10:00
Thomas Meyer
f2a5da4ff2 drm/prime: Cocci spatch "err_cast.spatch"
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 08:30:49 +10:00
Thomas Meyer
8d06cd0af6 drm: Cocci spatch "memdup.spatch"
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 08:29:22 +10:00
Dave Airlie
edee06b6f6 Merge branch 'drm/next' of git://linuxtv.org/pinchartl/fbdev into drm-next
GEM CMA PRIME support from Laurent.

* 'drm/next' of git://linuxtv.org/pinchartl/fbdev:
  drm: GEM CMA: Add DRM PRIME support
  drm: GEM CMA: Split object mapping into GEM mapping and CMA mapping
  drm: GEM CMA: Split object creation into object alloc and DMA memory alloc
  drm/omap: Use drm_gem_mmap_obj() to implement dma-buf mmap
  drm/gem: Split drm_gem_mmap() into object search and object mapping
2013-06-11 08:14:21 +10:00
Ville Syrjälä
d20d317480 drm: Constify the pretty-print functions
The structures and strings involved with various pretty-print functions
aren't meant to be modified, so make them all const. The exception is
drm_connector_enum_list which does get modified in drm_connector_init().

While at it move the drm_get_connector_status_name() prototype from
drmP.h to drm_crtc.h where it belongs.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 08:13:56 +10:00
Ville Syrjälä
4ee62c7669 drm/i915: Print pretty names for pixel formats
Use drm_get_format_name to print more readable pixel format names
in debug output.

Also unify the debug messages to say "unsupported pixel format",
which better describes what is going on.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 08:13:55 +10:00
Ville Syrjälä
6ba6d03e69 drm: Print pretty names for pixel formats
Rather than just printing the pixel format as a hex number, decode the
fourcc into human readable form, and also decode the LE vs. BE flag.

Keep printing the raw hex number too in case it contains non-printable
characters.

Some examples what the new drm_get_format_name() produces:
DRM_FORMAT_XRGB8888: "XR24 little-endian (0x34325258)"
DRM_FORMAT_YUYV: "YUYV little-endian (0x56595559)"
DRM_FORMAT_RGB565|DRM_FORMAT_BIG_ENDIAN: "RG16 big-endian (0xb6314752)"
Unprintable characters: "D??? big-endian (0xff7f0244)"

v2: Fix patch author

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 08:13:54 +10:00
Maarten Lankhorst
ca793f75d9 drm: move pinning/unpinning to buffer attach
This allows importing bo's to own device to work without requiring that the buffer is pinned in GART.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 07:54:21 +10:00
Maarten Lankhorst
102d6dba30 drm: add unpin function to prime helpers
Prevents buffers from being pinned forever.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 07:51:11 +10:00
Laurent Pinchart
71d7282a0f drm: GEM CMA: Add DRM PRIME support
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2013-06-08 09:14:05 +02:00
Laurent Pinchart
ebaf9e033e drm: GEM CMA: Split object mapping into GEM mapping and CMA mapping
The CMA-specific mapping code will be used to implement dma-buf mmap
support.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-06-08 09:14:05 +02:00
Laurent Pinchart
a5ed8940d3 drm: GEM CMA: Split object creation into object alloc and DMA memory alloc
This allows creating a GEM CMA object without an associated DMA memory
buffer, and will be used to implement DRM PRIME support.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2013-06-08 09:14:04 +02:00
Laurent Pinchart
bda3fdaa0f drm/omap: Use drm_gem_mmap_obj() to implement dma-buf mmap
The dma-buf mmap code was copied from the GEM mmap implementation.
Replace it with the new drm_gem_mmap_obj() function.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2013-06-08 09:14:04 +02:00
Laurent Pinchart
1c5aafa6ee drm/gem: Split drm_gem_mmap() into object search and object mapping
The drm_gem_mmap() function first finds the GEM object to be mapped
based on the fake mmap offset and then maps the object. Split the object
mapping code into a standalone drm_gem_mmap_obj() function that can be
used to implement dma-buf mmap() operations.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2013-06-08 09:14:03 +02:00
Steffen Trumtrar
328a4719b6 drm_modes: videomode: add doubleclk flag
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-03 18:42:35 +10:00
Steffen Trumtrar
2d178a4abb video: of: display_timing: add doubleclk flag
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-03 18:42:34 +10:00
Steffen Trumtrar
267fdd92bb video: display_timing: add doubleclk flag
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-03 18:42:32 +10:00
Steffen Trumtrar
f583662347 video: display_timing: make parameter const
As the device_node pointer is not changed in of_get_display_timing and
parse_timing_property it can be a const pointer.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-03 18:42:31 +10:00
Paulo Zanoni
92d44621ad drm/i915: add i915_ips_status debugfs entry
It just prints whether it's supported/enabled/disabled. Feature
requested by the power management team.

v2: Checkpatch started complaining about seq_printf with 1 argument.

Requested-by: Kristen Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-05-31 21:40:20 +02:00
Paulo Zanoni
3c4ca58c12 drm/i915: add enable_ips module option
IPS is still enabled by default. Feature requested by the power
management team.

This should also help testing the feature on some early pre-production
hardware where there were relationship problems between IPS and PSR.

v2: Rebase on top of the newest IPS implementation.
v3: Check i915_enable_ips at compute_config, not supports_ips, so the
    kernel parameter will be ignored at haswell_get_pipe_config.

Requested-by: Kristen Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-05-31 21:40:08 +02:00
Paulo Zanoni
42db64efcd drm/i915: implement IPS feature
Intermediate Pixel Storage is a feature that should reduce the number
of times the display engine wakes up memory to read pixels, so it
should allow deeper PC states. IPS can only be enabled on ULT pipe A
with 8:8:8 pipe pixel formats.

With eDP 1920x1080 and correct watermarks but without FBC this moves
my PC7 residency from 2.5% to around 38%.

v2: - It's tied to pipe A, not port A
    - Add pipe_config support (Chris)
    - Add some assertions (Chris)
    - Rebase against latest dinq
v3: - Don't ever set ips_enabled to false (Daniel)
    - Only check for ips_enabled at hsw_disable_ips (Daniel)
v4: - Add hsw_compute_ips_config (Daniel)
    - Use the new dump_pipe_config (Daniel)

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-05-31 21:39:55 +02:00
Daniel Vetter
e7a639c445 drm/i915: fix up the edp power well check
Now that we track the cpu transcoder we need accurately in the pipe
config we can finally fix up the transcoder check. With the current
code eDP on port D will be broken since we'd errornously cut the
power.

For reference see

commit 2124b72e62
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date:   Fri Mar 22 14:07:23 2013 -0300

    drm/i915: don't disable the power well yet

v2:
- Kill the now outdated comment (Paulo)
- Add the missing crtc->base.enabled check and consolidate it (Paulo)
- Smash all checks together, looks neater that way.

v3: Kill the unused encoder variable.

Cc: Takashi Iwai <tiwai@suse.de>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-05-31 21:00:29 +02:00
Xiang, Haihao
a1f2cc73c7 drm/i915: add I915_PARAM_HAS_VEBOX to i915_getparam
This will let userland only try to use the new ring
when the appropriate kernel is present

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-05-31 20:54:22 +02:00
Xiang, Haihao
82f91b6e93 drm/i915: add I915_EXEC_VEBOX to i915_gem_do_execbuffer()
A user can run batchbuffer via VEBOX ring.

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-05-31 20:54:21 +02:00