Commit graph

6931 commits

Author SHA1 Message Date
Ben Skeggs
9d6ba0b58c drm/nvc0/pm: very initial mclk freq change
Loads of magic missing, this will probably blow up if you try it.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:31:34 +10:00
Ben Skeggs
a94ba1fcac drm/nvd9/pm: oops, fix timing calc
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:31:32 +10:00
Ben Skeggs
6b91d6b056 drm/nvc0/pm: enable mpll src pll, and calc mpll coefficients
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:31:30 +10:00
Ben Skeggs
a1da205f42 drm/nvc0/pm: start filling in memory reclocking stubs 2012-05-24 16:31:29 +10:00
Ben Skeggs
19a1e47799 drm/nva3/pm: another few magic regs, and slightly better 0x004018 handling
Not entirely convinced 0x004018 transitions are correct yet, but, it's
an improvement.

The 750MHz value comes from fiddling with the binary driver + coolbits on
two different DDR3 NVA8 chipsets (T510 NVS3100M, and NVS300), not a clue
where this number comes from.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:31:27 +10:00
Ben Skeggs
2b20fd0ab4 drm/nva3/pm: initial attempt at handling 111100/111104
Probably not quite right, but this is enough now to make NVS300 reclock
between all 3 of its perflvls correctly.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:31:25 +10:00
Ben Skeggs
5f54d29ee9 drm/nva3/pm: make pll->pll mode work
This probably wants a cleanup, but I'm holding off until I know for sure
how the rest of the things that need doing fit together.

Tested on NVS300 by hacking up perflvl 1 to require PLL mode, and switching
between perflvl 3 and 1.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:31:23 +10:00
Ben Skeggs
001a3990f6 drm/nva3/pm: attempt to bash a few 0x100200 bits correctly
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:31:21 +10:00
Ben Skeggs
4719b55be5 drm/nva3/pm: begin to restructure memory clock changes + another magic
The binary driver appears to do various bits and pieces of the memory
clock frequency change at different times, depending on the particular
transition that's occuring.  I've attempted to replicate this here
for div->pll, pll->div and div->div transitions.

With some additional (patches upcoming) magic regs being bashed, this
allows me to correctly transition between all 3 perflvls on NVS300.

pll->pll transitions will *not* work correctly at the moment, pending
me tricking the binary driver into doing one and seeing how to correctly
handle it.

This patch also handles (hopefully) 0x1110e0, which appears to need
changing depending on whether in PLL or divider mode.. Maybe.  We'll
see.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:31:20 +10:00
Ben Skeggs
30e533900e drm/nva3/pm: more random unknown PFB regs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:31:18 +10:00
Ben Skeggs
27740383dd drm/nva3/pm: initial attempt at more magic PFB regs
The reg calculation may get moved elsewhere at some point, but lets
figure out what exactly we need to do first.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:31:16 +10:00
Ben Skeggs
65115bb05a drm/nva3/pm: hook up to ram reclocking helper
This gets us a start on memory timings.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:31:14 +10:00
Ben Skeggs
074e747a6d drm/nva3/pm: introduce more paranoia
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:31:12 +10:00
Dave Airlie
41ceeeb25d drm/nouveau/radeon: add static const to the dma-buf ops.
Reported-by: wfg@linux.intel.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-23 14:10:27 +01:00
Dave Airlie
6a101cb209 drm/i915: make some dmabuf things static
these functions and the table can all be static/static const.

Reported-by: wfg@linux.intel.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-23 14:09:32 +01:00
Dave Airlie
5288b7b205 drm: update ast/cirrus/mgag200 for change in TTM api
New drivers merged after changes were done in prime TTM code.

Fix build.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-23 14:08:41 +01:00
Alex Deucher
40f5cf9969 drm/radeon: add PRIME support (v2)
This adds prime->fd and fd->prime support to radeon.
It passes the sg object to ttm and then populates
the gart entries using it.

Compile tested only.

v2: stub kmap + use new helpers + add reimporting

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-23 10:47:11 +01:00
Daniel Vetter
1286ff7397 i915: add dmabuf/prime buffer sharing support.
This adds handle->fd and fd->handle support to i915, this is to allow
for offloading of rendering in one direction and outputs in the other.

v2 from Daniel Vetter:
- fixup conflicts with the prepare/finish gtt prep work.
- implement ppgtt binding support.

Note that we have squat i-g-t testcoverage for any of the lifetime and
access rules dma_buf/prime support brings along. And there are quite a
few intricate situations here.

Also note that the integration with the existing code is a bit
hackish, especially around get_gtt_pages and put_gtt_pages. It imo
would be easier with the prep code from Chris Wilson's unbound series,
but that is for 3.6.

Also note that I didn't bother to put the new prepare/finish gtt hooks
to good use by moving the dma_buf_map/unmap_attachment calls in there
(like we've originally planned for).

Last but not least this patch is only compile-tested, but I've changed
very little compared to Dave Airlie's version. So there's a decent
chance v2 on drm-next works as well as v1 on 3.4-rc.

v3: Right when I've hit sent I've noticed that I've screwed up one
obj->sg_list (for dmar support) and obj->sg_table (for prime support)
disdinction. We should be able to merge these 2 paths, but that's
material for another patch.

v4: fix the error reporting bugs pointed out by ickle.

v5: fix another error, and stop non-gtt mmaps on shared objects
stop pread/pwrite on imported objects, add fake kmap

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-05-23 10:47:10 +01:00
Dave Airlie
22b33e8ed0 nouveau: add PRIME support
This adds prime->fd and fd->prime support to nouveau,
it passes the SG object to TTM, and then populates the
GART entries using it.

v2: add stubbed kmap + use new function to fill out pages array
for faulting + add reimport test.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-23 10:46:55 +01:00
Dave Airlie
129b78bfca ttm: add prime sharing support to TTM (v2)
This adds the ability for ttm common code to take an SG table
and use it as the backing for a slave TTM object.

The drivers can then populate their GTT tables using the SG object.

v2: make sure to setup VM for sg bos as well.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-23 10:46:27 +01:00
Dave Airlie
96503f592f udl: add prime fd->handle support.
udl can only be used as an output offload so doesn't need to support
handle->fd direction.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-23 10:46:05 +01:00
Dave Airlie
0ff926c7d4 drm/prime: add exported buffers to current fprivs imported buffer list (v2)
If userspace attempts to import a buffer it exported on the same device,
we need to return the same GEM handle for it, not a new handle pointing
at the same GEM object.

v2: move removals into a single fn, no need to set to NULL. (Chris Wilson)

Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-23 10:46:03 +01:00
Dave Airlie
51ab7ba267 drm/prime: introduce sg->pages/addr arrays helper
the ttm drivers need this currently, in order to get fault handling
working and efficient.

It also allows addrs to be NULL for devices like udl.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-23 10:45:57 +01:00
Rob Clark
4d93914ae3 drm: add plane properties
The omapdrm driver uses this for setting per-overlay rotation.  It
is likely also useful for setting YUV->RGB colorspace conversion
matrix, etc.

Signed-off-by: Rob Clark <rob@ti.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:54:30 +01:00
Rob Clark
49e2754578 drm: add bitmask property type
A bitmask property is similar to an enum.  The enum value is a bit
position (0-63), and valid property values consist of a mask of
zero or more of (1 << enum_val[n]).

[airlied: 1LL -> 1ULL]

Signed-off-by: Rob Clark <rob@ti.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:54:16 +01:00
Dave Airlie
345f3b9035 Merge branch 'exynos-drm-next' of git://git.infradead.org/users/kmpark/linux-samsung into drm-core-next
* 'exynos-drm-next' of git://git.infradead.org/users/kmpark/linux-samsung:
  drm/exynos: add G2D driver
  drm/exynos: added vp scaling feature for hdmi
  drm/exynos: added source size to overlay structure
  drm/exynos: add additional display mode for hdmi
  drm/exynos: enable dvi mode for dvi monitor
  drm/exynos: fixed wrong pageflip finish event for interlace mode
  drm/exynos: add PM functions for hdmi and mixer
  drm/exynos: add dpms for hdmi
  drm/exynos: use threaded irq for hdmi hotplug
  drm/exynos: use platform_get_irq_byname for hdmi
  drm/exynos: cleanup for hdmi platform data
  drm/exynos: added a feature to get gem buffer information.
  drm/exynos: added drm prime feature.
  drm/exynos: added cache attribute support for gem.
  vgaarb: Provide dummy default device functions
2012-05-22 10:39:57 +01:00
Laurent Pinchart
ebe0f2442c drm: Make the CRTC gamma_set operation optional
Drivers for hardware without gamma support should not be forced to
implement a no-op gamma set operation.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Rob Clark <rob.clark@linaro.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:35:15 +01:00
Laurent Pinchart
e6ecefaadf drm: Constify drm_mode_config_funcs pointer
The DRM mode config functions structure declared by drivers and pointed
to by the drm_mode_config funcs field is never modified. Make it a const
pointer.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Rob Clark <rob.clark@linaro.org>
Reviwed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:35:07 +01:00
Laurent Pinchart
78b68556a9 drm: Constify gem_vm_ops pointer
The GEM vm operations structure is passed to the VM core that stores it
in a const field. There vm operations structures can thus be const in
DRM as well.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Rob Clark <rob.clark@linaro.org>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:34:53 +01:00
Laurent Pinchart
3b02ab8893 drm: Miscellaneous typo fixes and documentation updates
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:34:33 +01:00
Laurent Pinchart
4a1b071427 drm: Don't initialize local ret variable when not needed
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:32:58 +01:00
Laurent Pinchart
7eb3b2c83d drm: Delete the vblank timer synchronously at cleanup time
A race condition exists in drm_vblank_cleanup() if the vblank disable
timer callback runs after freeing the memory that its callback function
tries to access. Fix this by deleting the timer synchronously.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:30:58 +01:00
Corentin Chary
af437cfd35 drm/backlight: initialize struct backlight_properties properly
The power field was never correctly initialized.

[airlied: just took the two drm specific bits]

Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:29:46 +01:00
Adam Jackson
6225ee05ea drm/nouveau/dp: Probe branch/sink OUIs (v2)
(airlied: v2: fix missing struct - fixes compile)

Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:29:02 +01:00
Adam Jackson
40c5d87647 drm/radeon/dp: Probe branch/sink OUIs
Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:19:03 +01:00
Adam Jackson
0d19832853 drm/i915/dp: Probe branch/sink OUIs
Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:18:47 +01:00
Alan Cox
7beff62ee3 gma500: Fix Poulsbo suspend/resume crash on devices with SDVO ports
Reported-by: Guillaume Clément <guillaume@baobob.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:15:45 +01:00
Patrik Jakobsson
bc79482914 gma500: handle poulsbo cursor restriction
Poulsbo needs a physical address in the cursor base register. We allocate a
stolen memory buffer and copy the cursor image provided by userspace into it.
When/If we get our own userspace driver we can map this stolen memory directly.
The patch also adds a mark in chip ops so we can identify devices that has this
requirement.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:15:34 +01:00
Alan Cox
ac0a5dd6ae gma500: Prevent endless loop in panel power up sequence
Some devices don't have a panel connected to LVDS and thus will never power up.
This patch checks the power sequence progress bits in PP_STATUS to prevent an
endless loop on such devices.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:15:29 +01:00
Rafał Miłecki
3299de9558 drm/radeon/hdmi: compile audio status in 1 function
This optmizes calls, registers reads and assignments.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:14:16 +01:00
Dave Airlie
c284815deb nouveau: nouveau_set_bo_placement takes TTM flags
This seems to be wrong to me, spotted while thinking about dma-buf.

Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22 10:11:56 +01:00
Dave Airlie
f15b4ca2cc Merge tag 'drm-intel-next-2012-05-20' of git://people.freedesktop.org/~danvet/drm-intel into drm-core-next
Daniel wrote:

The last pull I'd like to squeeze into 3.5, safe for the hsw stuff mostly
bugfixes:
- last few patches for basic hsw enabling (Eugeni, infoframe support by
 Paulo)
- Fix up infoframe support, we've hopefully squashed all the cargo-culting
 in there (Paulo). Among all the issues, this finally fixes some of the
 infoframe regressions seen on g4x and snb systems.
- Fixup sdvo infoframe support, this fixes a regression from 2.6.37.
- Correctly enable semaphores on snb, we've enabled it already for 3.5,
 but the dmar check was slightly wrong.
- gen6 irq fixlets from Chris.
- disable gmbus on i830, the hw seems to be simply broken.
- fix up the pch pll fallout (Chris & me).
- for_each_ring macro from Chris - I've figured I'll merge this now to
 avoid backport pain.
- complain when the rps state isn't what we expect (Chris). Note that this
 is shockingly easy to hit and hence pretty much will cause a regression
 report. But it only tells us that the gpu turbo state got out of whack,
 a problem we know off since a long time (it cause the gpu to get stuck a
 a fixed frequency, usually the lowest one). Chris is working on a fix,
 but we haven't yet found a magic formula that works perfectly (only
 patches that massively reduce the frequency of this happening).
- MAINTAINERS patch, I'm now officially the guy to beat up."

* tag 'drm-intel-next-2012-05-20' of git://people.freedesktop.org/~danvet/drm-intel: (57 commits)
  drm/i915: IBX has a fixed pch pll to pch pipe mapping
  drm/i915: implement hsw_write_infoframe
  drm/i915: small hdmi coding style cleanups
  drm/i915: fixup infoframe support for sdvo
  drm/i915: Enable the PCH PLL for all generations after link training
  drm/i915: Convert BUG_ON(!pll->active) and friends to a WARN
  drm/i915: don't clobber the pipe param in sanitize_modesetting
  drm/i915: disable gmbus on i830
  drm/i915: Replace the feature tests for BLT/BSD with ring init checks
  drm/i915: Check whether the ring is initialised prior to dispatch
  drm/i915: Introduce for_each_ring() macro
  drm/i915: Assert that the transcoder is indeed off before modifying it
  drm/i915: hook Haswell devices in place
  drm/i915: prepare HDMI link for Haswell
  drm/i915: move HDMI structs to shared location
  drm/i915: add WR PLL programming table
  drm/i915: add support for DDI-controlled digital outputs
  drm/i915: detect digital outputs on Haswell
  drm/i915: program iCLKIP on Lynx Point
  drm/i915: program WM_LINETIME on Haswell
  ...
2012-05-21 08:17:42 +01:00
Daniel Vetter
98b6bd998a drm/i915: IBX has a fixed pch pll to pch pipe mapping
This should fix breakage introduced in

commit ee7b9f93fd
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Fri Apr 20 17:11:53 2012 +0100

    drm/i915: manage PCH PLLs separately from pipes

v2: Add a DRM_DEBUG_KMS message to explain why a given pll was
selected, suggested by Chris Wilson.

v3: Actually run git add.

Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=49712
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-05-20 20:48:35 +02:00
Paulo Zanoni
2da8af5405 drm/i915: implement hsw_write_infoframe
Both the control and data registers are completely different now.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-05-20 17:52:35 +02:00
Paulo Zanoni
ed517fbbbd drm/i915: small hdmi coding style cleanups
- Changed the coding style of auxiliary infoframe functions to make
  them smaller
- Fixed the column alignment of some function definitions
- Remove definition of "struct drm_crtc" in some places as they're
  used only to retrieve "struct intel_crtc"

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-05-20 17:51:51 +02:00
Daniel Vetter
81014b9d0b drm/i915: fixup infoframe support for sdvo
At least the worst offenders:
- SDVO specifies that the encoder should compute the ecc. Testing also
  shows that we must not send the ecc field, so copy the dip_infoframe
  struct to a temporay place and avoid the ecc field. This way the avi
  infoframe is exactly 17 bytes long, which agrees with what the spec
  mandates as a minimal storage capacity (with the ecc field it would
  be 18 bytes).
- Only 17 when sending the avi infoframe. The SDVO spec explicitly
  says that sending more data than what the device announces results
  in undefined behaviour.
- Add __attribute__((packed)) to the avi and spd infoframes, for
  otherwise they're wrongly aligned. Noticed because the avi infoframe
  ended up being 18 bytes large instead of 17. We haven't noticed this
  yet because we don't use the uint16_t fields yet (which are the only
  ones that would be wrongly aligned).

This regression has been introduce by

3c17fe4b8f is the first bad commit
commit 3c17fe4b8f
Author: David Härdeman <david@hardeman.nu>
Date:   Fri Sep 24 21:44:32 2010 +0200

    i915: enable AVI infoframe for intel_hdmi.c [v4]

Patch tested on my g33 with a sdvo hdmi adaptor.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=25732
Tested-by: Peter Ross <pross@xvid.org> (G35 SDVO-HDMI)
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-05-20 17:11:11 +02:00
Dave Airlie
64172ccbe2 drm/kms: fix Kconfig for new drivers.
Reported-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-20 10:10:53 +01:00
Chris Wilson
6f13b7b5be drm/i915: Enable the PCH PLL for all generations after link training
Hidden away within one chipset specific path was the necessary logic to
turn on the PLL. This needs to be done everywhere in order for us to
drive any display! As such as soon as we tested on a non-CougarPoint
chipset, we failed to bring up any DisplayPorts and generated a nice set
of assertion failures in the process. At least one part of our logic is
working, the part that assumes that we have no idea what we are doing.

Reported-by: guang.a.yang@intel.com
References: https://bugs.freedesktop.org/show_bug.cgi?id=49712
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-05-19 23:10:01 +02:00
Chris Wilson
48da64a8bf drm/i915: Convert BUG_ON(!pll->active) and friends to a WARN
Turn a fatal lockup into a merely blank display with lots of shouty
messages.

v2: Whilst in the area, convert the other BUG_ON into less fatal errors.
In particular, note that we may be called on a PCH platform not using
PLLs, such as Haswell, and so we do not always want to BUG_ON(!pll)

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-05-19 23:09:50 +02:00
Daniel Vetter
a9dcf84b14 drm/i915: don't clobber the pipe param in sanitize_modesetting
... we need it later on in the function to clean up pipe <-> plane
associations. This regression has been introduced in

commit f47166d2b0
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Thu Mar 22 15:00:50 2012 +0000

    drm/i915: Sanitize BIOS debugging bits from PIPECONF

Spotted by staring at debug output of an (as it turns out) totally
unrelated bug.

v2: I've totally failed to do the s/pipe/i/ correctly, spotted by
Chris Wilson.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Cc: stable@kernel.org (the regression was Cc: stable, too)
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-05-19 22:42:54 +02:00