Commit Graph

6199 Commits

Author SHA1 Message Date
Brad Volkin
113a047633 drm/i915: Add more registers to the whitelist for mesa
These are additional registers needed for performance monitoring and
ARB_draw_indirect extensions in mesa.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76719
Cc: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Brad Volkin <bradley.d.volkin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
[danvet: Squash in fixup from Brad requested by Ken.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 21:54:05 +02:00
Damien Lespiau
932aae4253 drm/i915: Remove misleading debug message
haswell_write_eld() is also used on broadwell, so let's not explicitely
mention Haswell. The rest of the function has plenty of debug output
which will print the function name, so we know where we are anyway.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 15:16:36 +02:00
Damien Lespiau
d0e1f1cbe3 drm/i915: Rename GEN8_PIPE_FLIP_DONE to PRIMARY_FLIP_DONE
It is now clear that this interrupt is for the primary plane and not
something global to the pipe. It also matches what the spec calls it.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 15:15:16 +02:00
Mika Kuoppala
88b4aa8770 drm/i915: add flags to i915_ring_stop
Piglit runner and QA are both looking at the dmesg for
DRM_ERRORs with test cases. Add a flag to control those
when we they are expected from related test cases.

Also add flag to control if contexts should be banned
that introduced the hang. Hangcheck is timer based and
preventing bans by adding sleeps to testcases makes
testing slower.

v2: intel_ring_stopped(), readable comment (Chris)
v3: keep compatibility (Daniel)

References: https://bugs.freedesktop.org/show_bug.cgi?id=75876
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 15:07:42 +02:00
Chris Wilson
ce7ec768d6 drm/i915: dma_buf_vunmap is presumed not to fail, don't let it
Since dma_buf_vunmap() procedes blithely on ignorant of whether the
driver failed to actually unmap the backing storage for the dma-buf, we
need to make a best-effort to do so. This involves not allowing
ourselves to be susceptible to signals causing us to leak the storage.

This should have been detectable with the current i-g-t as a misplaced
signal should have left the pages pinned upon freeing the object where
we have a warning in place.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 15:03:05 +02:00
Damien Lespiau
f476828a74 drm/i915/bdw: Use the GEN8 SRM when qeueing a flip
Comment from Ben: It's a bit unclear whether we need this dance still
on bdw.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:58:46 +02:00
Damien Lespiau
b76bfebab5 drm/i915/bdw: Provide a gen8 version of SRM
GEN8 now has a qword to code for 48bit addresses.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:58:27 +02:00
Damien Lespiau
7ec55f46da drm/i915: Protect the argument expansion in LRI and SRM macros
It seems like it wouldn't be too unlikely to be wanting to use a an
expression in the macro argument and things could go very wrong.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:57:20 +02:00
Jesse Barnes
13732ba749 drm/i915: move infoframe setting to after pll enable v3
Needs to happen after clock is running or it doesn't behave correctly.

v2: fix subject (Ville)
    make it clearer that this occurs in pre_enable (Paulo)
    misc bikesheds (Paulo)

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:48:19 +02:00
Jesse Barnes
759c85e778 drm/i915: enable HDMI mode on VLV when an HDMI sink is detected
Allows sending of the null packets for conformance.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:47:34 +02:00
Jesse Barnes
4d47dfb8ef drm/i915/vlv: disable AVI infoframe emission when writing infoframes
We also do a disable later when we write a specific infoframe, but here
we do it to prevent sending a stale one before updating the infoframes.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:47:13 +02:00
Jesse Barnes
6a2b8021d2 drm/i915/vlv: write the port field in the per-pipe DIP control reg
In case we end up bouncing these around between ports.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:46:49 +02:00
Ville Syrjälä
4e97508123 drm/i916: Refactor WM register maximums
We will have another use for the maximum watermark values that the
registers can hold. Pull those out into separate functions.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:43:10 +02:00
Ville Syrjälä
fe392efdae drm/i915: Skip watermark merging for inactive pipes
Even though the inactive pipes should have their watermarks set to all 0
with enable=true, we can possibly shave off a few cycles by completely
skipping the merge procedure for inactive pipes.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:43:09 +02:00
Ville Syrjälä
2a44b76bb5 drm/i915: Add some more tracked state to intel_pipe_wm
intel_pipe_wm will be used to track the state in different stages
of the watermark update process. For that we need to keep a bit
more state in intel_pipe_wm.

We also need to separate the multi-pipe intel_wm_config computation
from ilk_compute_wm_parameters() as that one deals with the future
state, and we need the intel_wm_config to match the current hardware
state at the time we do the watermark merging for multiple pipes.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: Frob conflict.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:42:03 +02:00
Ben Widawsky
17d36749a5 drm/i915: Dump the whole context object.
As we've learned over time, the HW context is just a series of GPU
commands that we're able to decode without any changes in
intel_error_decode. Since many bugs recently have been implicated in
the HW context state, it makes sense to dump the whole context object
in a form which can be parsed.

Sample:
render ring --- HW Context = 0x042db000
ringbuffer (render ring) at 0x0160c000; HEAD points to: 0x0160c000
0x0160c000:      0x00000000: MI_NOOP
0x0160c004:      0x00000000: MI_NOOP
0x0160c008:      0x00000000: MI_NOOP
0x0160c00c:      0x00000000: MI_NOOP
0x0160c010:      0x00000000: MI_NOOP
0x0160c014:      0x00000000: MI_NOOP
0x0160c018:      0x00000000: MI_NOOP
0x0160c01c:      0x00000000: MI_NOOP

Unfortunately, our decoder isn't quite smart enough to deal with the
variable length LRIs - but that is a tools problem.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Clarify commit message a bit, seems to have lost a few
crucial words.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:37:13 +02:00
Jesse Barnes
9393707190 drm/i915: warn when a vblank wait times out
This always indicates a bug somewhere.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:37:12 +02:00
Ben Widawsky
935f38d694 drm/i915: Unref context on failed eb_create
I opted to do this instead of grabbing the context reference after
eb_create since eb_create can potentially call the shrinker, and that
makes things very complicated. This simple patch balances the ref count
without requiring a great deal of review to make sure the shrinker path
is safe.

Theoretically (by design) the shrinker can end up destroying a context,
which enforces the reasoning for doing the fix this way instead of
moving the reference to later in the function.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:37:11 +02:00
Ville Syrjälä
cfa7698bd4 drm/i915: Don't read sprite LP2+ registers on ILK/SNB
Sprite LP2+ registers don't exist on ILK/SNB so don't read them.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:37:10 +02:00
Ville Syrjälä
ad2ac08bf3 drm/i915: Make contexts non-snooped on non-LLC platforms
We don't do CPU access to GPU contexts so making the GPU access snoop
the CPU caches seems silly, and potentially expensive.

v2: Use !IS_VALLEYVIEW instead of HAS_LLC as this is really
    about what the PTEs can represent.
    Add a comment clarifying the situation.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:37:10 +02:00
Akash Goel
4e04632e88 drm/i915/vlv:Implement the WA 'WaDisable_RenderCache_OperationalFlush'
On Gen4+ platforms (except BDW), Render Cache Operational flush
cannot be enabled.
This WA is apparently required for all Gen4+ platforms,except BDW.
In BDW, the bit has been repurposed otherwise.
This has been tested only on vlv.

v2: Corrected the code regarding the wrong usage of
MASKED_BIT_DISABLE (Chris)

v3: Enhancing the scope of WA to Gen4+ platforms except BDW (Ville)

v4: Adding WA for g4x, crestline, broadwater (Ville)

Signed-off-by: Akash Goel <akash.goel@intel.com>
Signed-off-by: Sourab Gupta <sourab.gupta@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:37:09 +02:00
Daniel Vetter
8cbf320209 Merge remote-tracking branch 'airlied/drm-next' into HEAD
Backmerge drm-next after the big s/crtc->fb/crtc->primary->fb/
cocinelle patch to avoid endless amounts of conflict hilarity in my
-next queue for 3.16.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-09 14:33:47 +02:00
Dave Airlie
9f97ba806a Merge tag 'drm-intel-fixes-2014-04-04' of git://anongit.freedesktop.org/drm-intel into drm-next
Merge window -fixes pull request as usual. Well, I did sneak in Jani's
drm_i915_private_t typedef removal, need to have fun with a big sed job
too ;-)

Otherwise:
- hdmi interlaced fixes (Jesse&Ville)
- pipe error/underrun/crc tracking fixes, regression in late 3.14-rc (but
  not cc: stable since only really relevant for igt runs)
- large cursor wm fixes (Chris)
- fix gpu turbo boost/throttle again, was getting stuck due to vlv rps
  patches (Chris+Imre)
- fix runtime pm fallout (Paulo)
- bios framebuffer inherit fix (Chris)
- a few smaller things

* tag 'drm-intel-fixes-2014-04-04' of git://anongit.freedesktop.org/drm-intel: (196 commits)
  Skip intel_crt_init for Dell XPS 8700
  drm/i915: vlv: fix RPS interrupt mask setting
  Revert "drm/i915/vlv: fixup DDR freq detection per Punit spec"
  drm/i915: move power domain init earlier during system resume
  drm/i915: Fix the computation of required fb size for pipe
  drm/i915: don't get/put runtime PM at the debugfs forcewake file
  drm/i915: fix WARNs when reading DDI state while suspended
  drm/i915: don't read cursor registers on powered down pipes
  drm/i915: get runtime PM at i915_display_info
  drm/i915: don't read pp_ctrl_reg if we're suspended
  drm/i915: get runtime PM at i915_reg_read_ioctl
  drm/i915: don't schedule force_wake_timer at gen6_read
  drm/i915: vlv: reserve the GT power context only once during driver init
  drm/i915: prefer struct drm_i915_private to drm_i915_private_t
  drm/i915/overlay: prefer struct drm_i915_private to drm_i915_private_t
  drm/i915/ringbuffer: prefer struct drm_i915_private to drm_i915_private_t
  drm/i915/display: prefer struct drm_i915_private to drm_i915_private_t
  drm/i915/irq: prefer struct drm_i915_private to drm_i915_private_t
  drm/i915/gem: prefer struct drm_i915_private to drm_i915_private_t
  drm/i915/dma: prefer struct drm_i915_private to drm_i915_private_t
  ...
2014-04-05 16:14:21 +10:00
Giacomo Comes
10b6ee4a87 Skip intel_crt_init for Dell XPS 8700
The Dell XPS 8700 has a onboard Display port and HDMI port and no VGA port.
The call intel_crt_init freeze the machine, so skip such call.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=73559
Signed-off-by: Giacomo Comes <comes at naic.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-04 09:30:53 +02:00
Imre Deak
09c87db8b4 drm/i915: vlv: fix RPS interrupt mask setting
This typo may lead to missed RPS interrupts and as a result a too
low or too high frequency for the current workload. The interrupt mask
will be set properly at a subsequent GPU idle event, but can get
corrupted again at the next RPS up/down event.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-04 09:30:52 +02:00
Deepak S
f6d519481b Revert "drm/i915/vlv: fixup DDR freq detection per Punit spec"
As per the inputs provided by hardware team  we still use DDR
Rates as 0,1=800, 2=1066, 3=1333.
With this change, Turbo freqs used on current machines matches.

This reverts commit f64a28a7c5.

commit f64a28a7c5
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Mon Nov 4 16:07:00 2013 -0800

     drm/i915/vlv: fixup DDR freq detection per Punit spec

v2: Add reference to previous commit which changed this. (Daniel)

Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-04 09:30:51 +02:00
Imre Deak
76c4b25008 drm/i915: move power domain init earlier during system resume
During resume the intel hda audio driver depends on the i915 driver
reinitializing the audio power domain. Since the order of calling the
i915 resume handler wrt. that of the audio driver is not guaranteed,
move the power domain reinitialization step to the resume_early
handler. This is guaranteed to run before the resume handler of any
other driver.

The power domain initialization in turn requires us to enable the i915
pci device first, so move that part earlier too.

Accordingly disabling of the i915 pci device should happen after the
audio suspend handler ran. So move the disabling later from the i915
resume handler to the resume_late handler.

v2:
- move intel_uncore_sanitize/early_sanitize earlier too, so they don't
  get reordered wrt. intel_power_domains_init_hw()

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76152
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Cc: stable@vger.kernel.org
[danvet: Add cc: stable and loud comments that this is just a hack.]
[danvet: Fix "Should it be static?" sparse warning reported by Wu
Fengguang's kbuilder.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-04 09:30:10 +02:00
Lauri Kasanen
62347f9e0f drm: Add support for two-ended allocation, v3
Clients like i915 need to segregate cache domains within the GTT which
can lead to small amounts of fragmentation. By allocating the uncached
buffers from the bottom and the cacheable buffers from the top, we can
reduce the amount of wasted space and also optimize allocation of the
mappable portion of the GTT to only those buffers that require CPU
access through the GTT.

For other drivers, allocating small bos from one end and large ones
from the other helps improve the quality of fragmentation.

Based on drm_mm work by Chris Wilson.

v3: Changed to use a TTM placement flag
v2: Updated kerneldoc

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Christian König <deathsimple@vodafone.de>
Signed-off-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: David Airlie <airlied@redhat.com>
2014-04-04 09:28:14 +10:00
Ville Syrjälä
04feced98a drm/i915: Provide a bit more info when pipestat bits are wrong
Print the enable_mask and status_mask from
__i915_{enable,disable}_pipestat() when the caller has messed them up
somehow.

v2: Use pipe_name() (Damien)
    Fix a typo in the commit message

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-03 17:23:47 +02:00
Chris Wilson
9991ae787a drm/i915: Move all ring resets before setting the HWS page
In commit a51435a313
Author: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com>
Date:   Wed Mar 12 16:39:40 2014 +0530

    drm/i915: disable rings before HW status page setup

we reordered stopping the rings to do so before we set the HWS register.
However, there is an extra workaround for g45 to reset the rings twice,
and for consistency we should apply that workaround before setting the
HWS to be sure that the rings are truly stopped.

Cc: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com>
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>
2014-04-03 17:16:45 +02:00
Ben Widawsky
057f6a8ad7 drm/i915: Invariably invalidate before ctx switch
We have been setting the bit which was originally BIOS dependent since:
commit f05bb0c7b6
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Sun Jan 20 16:33:32 2013 +0000

    drm/i915: GFX_MODE Flush TLB Invalidate Mode must be '1' for scanline waits

Therefore, we do not need to try to figure it out dynamically and we can
just always invalidate the TLBs.

It's a partial revert of:
commit 12b0286f49
Author: Ben Widawsky <ben@bwidawsk.net>
Date:   Mon Jun 4 14:42:50 2012 -0700

    drm/i915: possibly invalidate TLB before context switch

The original commit attempted to only invalidate when necessary
(very much a relic from the old days). Now, we can just always invalidate.

I guess the old TODO still exists. Since we seem to have abandoned ILK
contexts however, there isn't much point in even remembering.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-03 11:41:39 +02:00
Rafael Barbalho
eb6008ad30 drm/i915: Fix framecount offset
The framecount register was still using the old PIPE macro instead
of the new PIPE2 macro

Signed-off-by: Rafael Barbalho <rafael.barbalho@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-03 11:29:37 +02:00
Ville Syrjälä
0d95e11b7e drm/i915: Warn when DPIO read returns 0xffffffff
DPIO reads from groups/broadcast register offsets for PCS and
TX return all 1's. If that result gets used for something
we'll probably end up doing something wrong. So warn when that
happens.

FIXME there might be some registers where all 1's is a valid value,
so ideally we should check the register offset instead...

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: copypaste the FIXME comment into the code.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-03 11:28:39 +02:00
Ville Syrjälä
2070f00c79 drm/i915: Move DP M/N setup from update_pll to mode_set for gmch platforms
There's no point in hiding the DP M/N setup in the update_pll functions.
Just move it to the mode_set function.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-03 11:26:56 +02:00
Ville Syrjälä
a2a5b15c51 drm/i915: Fix debugfs PDP register dump
Iterate over all the PDP registers instead of just printing PDP0 four
times in gen8 PPGTT debugfs info.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-03 11:26:07 +02:00
Daniel Vetter
5db6c735ea drm/i915: dmesg output for VT-d testing
Our validation guys want to have a positive proof that the gfx driver
is indeed using VT-d, since setting up a gfx stack, especially in
early bring-up and by people not versed in linux gfx is a bit tricky.
So provide just that.

Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-03 11:24:02 +02:00
Daniel Vetter
7a10dfa638 drm/i915: Add debug module option for VTd validation
VTd has a few too many "outright disable the damn thing" workarounds
accumulated and for validation we want a simple knob to make sure we
disable them all.

Since this is for bdw+ validation and atm we don't have any
workarounds for bdw this option currently does nothing. So currently
this is just a placeholder to make sure reality will match with the
documented process for our validation people.

v2: Fix up param description (Jani).

v3: Actually git add ...

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-03 11:23:11 +02:00
Dave Airlie
66e514c14a Merge tag 'drm-intel-next-2014-03-21' of git://anongit.freedesktop.org/drm-intel into drm-next
- Inherit/reuse firmwar framebuffers (for real this time) from Jesse, less
  flicker for fastbooting.
- More flexible cloning for hdmi (Ville).
- Some PPGTT fixes from Ben.
- Ring init fixes from Naresh Kumar.
- set_cache_level regression fixes for the vma conversion from Ville&Chris.
- Conversion to the new dp aux helpers (Jani).
- Unification of runtime pm with pc8 support from Paulo, prep work for runtime
  pm on other platforms than HSW.
- Larger cursor sizes (Sagar Kamble).
- Piles of improvements and fixes all over, as usual.

* tag 'drm-intel-next-2014-03-21' of git://anongit.freedesktop.org/drm-intel: (75 commits)
  drm/i915: Include a note about the dangers of I915_READ64/I915_WRITE64
  drm/i915/sdvo: fix questionable return value check
  drm/i915: Fix unsafe loop iteration over vma whilst unbinding them
  drm/i915: Enabling 128x128 and 256x256 ARGB Cursor Support
  drm/i915: Print how many objects are shared in per-process stats
  drm/i915: Per-process stats work better when evaluated per-process
  drm/i915: remove rps local variables
  drm/i915: Remove extraneous MMIO for RPS
  drm/i915: Rename and comment all the RPS *stuff*
  drm/i915: Store the HW min frequency as min_freq
  drm/i915: Fix coding style for RPS
  drm/i915: Reorganize the overclock code
  drm/i915: init pm.suspended earlier
  drm/i915: update the PC8 and runtime PM documentation
  drm/i915: rename __hsw_do_{en, dis}able_pc8
  drm/i915: kill struct i915_package_c8
  drm/i915: move pc8.irqs_disabled to pm.irqs_disabled
  drm/i915: remove dev_priv->pc8.enabled
  drm/i915: don't get/put PC8 when getting/putting power wells
  drm/i915: make intel_aux_display_runtime_get get runtime PM, not PC8
  ...

Conflicts:
	drivers/gpu/drm/i915/intel_display.c
	drivers/gpu/drm/i915/intel_dp.c
2014-04-03 07:51:54 +10:00
Paulo Zanoni
4b28a1f3ef drm/i915: fix infinite loop at gen6_update_ring_freq
If I boot my Broadwell machine to X on a system with Mesa Gallium
llvmpipe instead of i965, then kill X and try to run pm_pc8.c, when we
disable PC8 and call gen6_update_ring_freq(), we will get stuck on an
infinite loop because the frequencies are zero and the variables are
unsigned. This happens because we never ran any batch, so we did not
enable RC6, so the variables are zero. If I run gem_exec_nop before
running pm_pc8, everything works as expected because gem_exec_nop
makes RC6 be enabled.

This commit should prevent the infinite loop, which IMHO is already a
good reason to be merged, but it is not the proper fix to the "RC6 is
not being enabled" problem.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-02 16:57:19 +02:00
Paulo Zanoni
9926ada128 drm/i915: only check for irqs_disabled when disabling LCPLL
Because if we keep the current code, we'll get tons of WARNs on
Broadwell, since the code is Haswell-specific.

We could have also added a Broadwell-specific code there, but it's not
really needed since we never disable LCPLL with the hotplug interrupts
still enabled. So keep the easy-and-simple-to-maintain solution until
we actually need something else.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-02 16:57:07 +02:00
Akash Goel
01fa03021f drm/i915: Enabling the TLB invalidate bit in GFX Mode register
This patch Enables the bit for TLB invalidate in GFX Mode register
for Gen7.

According to bspec,  When enabled this bit limits the invalidation
of the TLB only to batch buffer boundaries, to pipe_control
commands which have the TLB invalidation bit set and sync flushes.
If disabled, the TLB caches are flushed for every full flush of
the pipeline.

Tested only on vlv platform. Chris has tested on ivb and hsw
platforms.

v2: Adding the explicit enabling of this bit for all Gen7 platforms
instead of only vlv (Chris)

Signed-off-by: Akash Goel <akash.goel@intel.com>
Signed-off-by: Sourab Gupta <sourab.gupta@intel.com>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk> #ivb, hsw -Chris
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Add w/a markers as suggested by Ville.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-02 13:54:02 +02:00
Jani Nikula
86a2512124 drm/i915: fix command parser debug print format mismatches
Drop the cast from the pointer diff to fix:

drivers/gpu/drm/i915/i915_cmd_parser.c:405:4: warning: format '%td' expects
argument of type 'ptrdiff_t', but argument 5 has type 'long unsigned int'
[-Wformat]

While at it, use %u for u32.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
[danvet: After conflict resolution only the "While at it, ..." part
was left standing ...]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-02 11:38:42 +02:00
Brad Volkin
6e66ea137f drm/i915: Track OACONTROL register enable/disable during parsing
There is some thought that the data from the performance counters enabled
via OACONTROL should only be available to the process that enabled counting.
To limit snooping, require that any batch buffer which sets OACONTROL to a
non-zero value also sets it back to 0 before the end of the batch.

This requires limiting OACONTROL writes to happen via MI_LOAD_REGISTER_IMM
so that we can access the value being written. This should be in line with
the expected use case for writing OACONTROL.

v2: Drop an unnecessary '? true : false'

Cc: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Brad Volkin <bradley.d.volkin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-02 11:34:58 +02:00
Brad Volkin
b651000b22 drm/i915: Refactor cmd parser checks into a function
This brings the code a little more in line with kernel coding style.

Signed-off-by: Brad Volkin <bradley.d.volkin@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-02 11:34:22 +02:00
Brad Volkin
300233ee23 drm/i915: BUG_ON() when cmd/reg tables are not sorted
As suggested during review, this makes it much more obvious
when the tables are not sorted.

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Brad Volkin <bradley.d.volkin@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-02 11:33:51 +02:00
Zhenyu Wang
85b8d5c215 drm/i915: Allow i915_pc8_status debug info on BDW
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-02 09:26:56 +02:00
Ben Widawsky
13ffadd1f9 drm/i915/bdw: Expand FADD to 64bit
For error state, like the recent modification to ACTHD, FADD also gets
an upper dword. This is useful for debug to make sure the fetch address
and head are similar.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-02 09:21:44 +02:00
Ville Syrjälä
64bed78820 drm/i915: Implement WaProgramMiArbOnOffAroundMiSetContext:bdw
BSpec seems to tell us we need the MI_ARB_ON_OFF w/a around
MI_SET_CONTEXT on gen8.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-02 09:11:22 +02:00
Chris Wilson
bc104d1f10 drm/i915: Fix the computation of required fb size for pipe
The computation of required framebuffer size in

commit d978ef1445
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Fri Mar 7 08:57:51 2014 -0800

    drm/i915: Wrap the preallocated BIOS framebuffer and preserve for KMS fbcon v12

is too optimistic, and would rely on the invariant fb being
reconstructed to exactly fit each pipe (and probably ignore hardware
limits). Instead, we want to compute the upper bound on what the display
engine will access and ensure that is within the inherited framebuffer.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-02 09:10:01 +02:00
Matt Roper
f4510a2752 drm: Replace crtc fb with primary plane fb (v3)
Now that CRTC's have a primary plane, there's no need to track the
framebuffer in the CRTC.  Replace all references to the CRTC fb with the
primary plane's fb.

This patch was generated by the Coccinelle semantic patching tool using
the following rules:

        @@ struct drm_crtc C; @@
        -   (C).fb
        +   C.primary->fb

        @@ struct drm_crtc *C; @@
        -   (C)->fb
        +   C->primary->fb

v3: Generate patch via coccinelle.  Actual removal of crtc->fb has been
    moved to a subsequent patch.

v2: Fixup several lingering crtc->fb instances that were missed in the
    first patch iteration.  [Rob Clark]

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2014-04-01 20:18:28 -04:00