Commit Graph

441906 Commits

Author SHA1 Message Date
Daniel Vetter
acfa75b02e drm/i915: Simplify audio handling on DDI ports
There's no need to check whether audio is enabled (which for ddi ports
is done through the crtc->eld_vld flag) since at the cost of a
potentially unecessary register rmw cycle we can unconditionally do
this.

Note that the edp check is just paranoia since we won't ever call the
write_eld function for an edp panel.

Reviewed-by: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-16 11:58:18 +02:00
Daniel Vetter
9f04003e2b drm/i915/sdvo: use config->has_hdmi_sink
This way we can rely on the state cross-checker to have a bit
assurance that we'll get it right.

Reviewed-by: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-16 11:58:09 +02:00
Daniel Vetter
b5a9fa09ea drm/i915: state readout and cross checking for limited_color_range
At least on those platforms which have a simple bit and don't rely
on the fully programmable CSC unit to do this.

Note that with the current code this includes CHV, but I guess that
platform will match BYT.

Reviewed-by: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-16 11:58:01 +02:00
Daniel Vetter
69f5acc839 drm/i915/sdvo: Use pipe_config->limited_color_range consistently
We in the pre_enable hook we should only rely on the pipe config and
not on some other state set through properties or detect functions.

Reviewed-by: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-16 11:57:53 +02:00
Daniel Vetter
6897b4b5d3 drm/i915: Track hdmi mode in the pipe config
Also add state readout and cross-check support. The only invasive change
is wiring up the new flag to the ->set_infoframes callbacks.

Reviewed-by: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-16 11:57:44 +02:00
Daniel Vetter
abac6a009c drm/i915/hdmi: Enable hdmi mode on g4x, too
For compliance we really should be sending NULL infoframes always
when we detect a hdmi capable monitor. Also remove the now redudant
setting for the has_audio case and enforce that audio is only
possible with a hdmi sink.

Reviewed-by: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-16 11:57:33 +02:00
Mika Kuoppala
b7bb243924 drm/i915: Enable rc6 with bdw
Everything should be in place so enable rc6/rps for bdw.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-15 23:15:54 +02:00
Mika Kuoppala
8fd9c1a9d7 drm/i915: Fix rc6 options debug info
by correctly displaying result and requested.

Suggested-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-15 23:15:45 +02:00
Deepak S
baccd4586e drm/i915: Enable PM Interrupts target via Display Interface.
In BDW, Apart from unmasking up/down threshold interrupts. we need
to umask bit 32 of PM_INTRMASK to route interrupts to target via Display
Interface.

v2: Add (1<<31) mask (Ville)

v3: Add Gen check for the mask (ville)

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-15 23:14:56 +02:00
Ben Widawsky
0961021aef drm/i915/bdw: Implement a basic PM interrupt handler
Almost all of it is reusable from the existing code. The primary
difference is we need to do even less in the interrupt handler, since
interrupts are not shared in the same way.

The patch is mostly a copy-paste of the existing snb+ code, with updates
to the relevant parts requiring changes to the interrupt handling. As
such it /should/ be relatively trivial. It's highly likely that I missed
some places where I need a gen8 version of the PM interrupts, but it has
become invisible to me by now.

This patch could probably be split into adding the new functions,
followed by actually handling the interrupts. Since the code is
currently disabled (and broken) I think the patch stands better by
itself.

v2: Move the commit about not touching the ringbuffer interrupt to the
snb_* function where it belongs (Rodrigo)

v3: Rebased on Paulo's runtime PM changes

v4: Not well validated, but rebase on
commit 730488b2ed
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date:   Fri Mar 7 20:12:32 2014 -0300

    drm/i915: kill dev_priv->pm.regsave

v5: Rebased on latest code base. (Deepak)

v6: Remove conflict markers, Unnecessary empty line and use right
IIR interrupt (Ville)

v7: mask modified without rmw (Ville Syrjälä)

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-15 23:14:32 +02:00
Mika Kuoppala
6e450ab24d drm/i915: Bail out early on gen6_signal if no semaphores
If we dont have semaphores enabled, we allocate 4
dwords for signalling. But end up emitting more regardless.

Fix this by bailing out early if semaphores are not enabled.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78274
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78283
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-15 23:14:13 +02:00
Shobhit Kumar
df38e6558d drm/i915: MIPI PPS delays added
Added as generic parameters which will be initialized in the panel
driver and are specific to panels.

Backlight delays have also kept as placeholders and will be used used
once we have MIPI backlight enabling support

Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-15 22:44:21 +02:00
Shobhit Kumar
cf4dbd2ecb drm/i915: MIPI init count programming as generic parameter
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-15 22:44:05 +02:00
Shobhit Kumar
dfba2e2d33 drm/i915: Correct MIPI operation mode as per expected values from VBT
In VBT fields operation mode is 0 for Video mode and 1 for command mode.
This field will be directly used as is in generic panel driver. So
adjust accordingly.

Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-15 22:43:48 +02:00
Mika Kuoppala
229b0489aa drm/i915: add null render states for gen6, gen7 and gen8
These are generated with intel-gpu-tools/tools/null_state_gen

v2: Don't use header file for states (Daniel Vetter)

v3: Proper URB state size for gen8/GT3 (Damien Lespiau)

Tested-by: Kristen Carlson Accardi <kristen@linux.intel.com> (v1)
Tested-by: Oscar Mateo <oscar.mateo@intel.com> (v2)
Acked-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-14 19:17:08 +02:00
Mika Kuoppala
9d0a6fa6c5 drm/i915: add render state initialization
HW guys say that it is not a cool idea to let device
go into rc6 without proper 3d pipeline state.

For each new uninitialized context, generate a
valid null render state to be run on context
creation.

This patch introduces a skeleton with empty states.

v2: - No need to vmap (Chris Wilson)
    - use .c files for state (Daniel Vetter)
    - no need to flush as i915_add_request does it
    - remove parameter for batch alloc size
    - don't wait for the init (Ben Widawsky)

v3: - move to cpu/gpu (Chris Wilson)

Tested-by: Kristen Carlson Accardi <kristen@linux.intel.com> (v1)
Tested-by: Oscar Mateo <oscar.mateo@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-14 19:16:13 +02:00
Daniel Vetter
8b1bc9b4f1 drm/i915: Only do gtt cleanup in vma_unbind for the global vma
Otherwise we end up tearing down fences when e.g. the client quits
way too early. Might or might not fix a fence pin_count BUG Ville has
reported.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-14 18:39:54 +02:00
Daniel Vetter
aff10b30a1 drm/i915: Don't drop pinned fences
Userspace can currently provoke this when e.g. trying to use a pinned
scanout as a cursor or overlay target. Later on that might lead to
some fun fence pin count mayhem.

Spurred by Ville's report that something goes wrong here and
originally I've thought that this might slip through the pwrite gtt
fastpath. But that one checks of obj tiling, so should be ok.

But one thing that _does_ blow up is the vma unbinding with more than
one address space. The next patch will fix this.

v2: Use a WARN_ON - Chris pointed out that we already catch all cases
so userspace can't provoke this like I've originally feared.

While reviewing relevant code I've noticed a pile of DRM_ERROR in the
overlay&cursor code which are all triggerable by userspace. Tune them
down while at it.

v3: Split out the DRM_ERROR->DRM_DEBUG_KMS change into a separate patch,
as requested by Chris.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-14 18:39:31 +02:00
Daniel Vetter
2206e6a11b drm/i915: use dev_priv directly in i915_driver_unload
Noticed while playing with coccinelle.

Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-14 13:12:24 +02:00
Chris Wilson
c0c97622c1 drm/i915: Use the connector name in fbdev debug messages
During initial probing of the modes to assign to the fbdev console, we
use the CRTC and connector ids. These are much harder for us to
understand than if we used their actual names (or pipe in the CRTC
case). Similarly, we want to manually print the mode size rather than
rely on mode->name being set.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-14 12:10:45 +02:00
Damien Lespiau
70e1e0ec02 drm/i915: Use for_each_crtc() when iterating through the CRTCs
Patch done using the following semantic patch (thanks Daniel for the
help!)

  @@
  iterator name list_for_each_entry;
  iterator name for_each_crtc;
  struct drm_crtc * crtc;
  struct drm_device * dev;
  @@
  -list_for_each_entry(crtc,&dev->mode_config.crtc_list, head) {
  +for_each_crtc(dev,crtc) {
  	...
  }

Followed by a couple of fixups by hand (that spatch doesn't match the
cases where list_for_each_entry() is not followed by a set of '{', '}',
but I couldn't figure out a way to leave the '{' out of the iterator
match).

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-14 00:38:46 +02:00
Damien Lespiau
d79b814d2f drm/i915: Introduce a for_each_crtc() macro
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-14 00:38:38 +02:00
Damien Lespiau
d3fcc808b2 drm/i915: Use for_each_intel_crtc() when iterating through intel_crtcs
Generated using the semantic patch:

  @@
  iterator name list_for_each_entry;
  iterator name for_each_intel_crtc;
  struct intel_crtc * crtc;
  struct drm_device * dev;
  @@
  -list_for_each_entry(crtc,&dev->mode_config.crtc_list,...) {
  +for_each_intel_crtc(dev,crtc) {
	...
  }

Followed by a couple of fixups by hand (that spatch doesn't match the
cases where list_for_each_entry() is not followed by a set of '{', '}',
but I couldn't figure out a way to leave the '{' out of the iterator
match).

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-14 00:38:24 +02:00
Damien Lespiau
d063ae48c4 drm/i915: Introduce a for_each_intel_crtc() macro
Fed up with having that long list_for_each_entry() invocation?

Use for_each_intel_crtc()!

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-14 00:38:18 +02:00
Damien Lespiau
546c81fd1a drm/i915: Use ilk_wm_max_level() in latency debugfs files
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
[danvet: Squash in patch that exported ilk_wm_max_level.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-13 20:01:48 +02:00
Damien Lespiau
9f25d00742 drm/i915: Don't cast void* pointers
That's not necessary and makes the code not as neat as it could be.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-13 18:45:37 +02:00
Daniel Vetter
ffd93f2480 drm/i915: Work-around garbage DR4 from UXA
Somehow UXA submits a completely bogus DR4 value since essentially
forever. It was originally introduced in

commit bade7d7d2505a10a8a7d24b084aff9742e2d6d64
Author: Eric Anholt <eric@anholt.net>
Date:   Fri Jun 6 14:03:25 2008 -0700

    Use the DRM for submitting batchbuffers when available.

and dutifully copied around ever since. Since we want to keep the
general dirt catching around just special case the UXA value.

This regression was introduced in

commit 9cb346648d
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Apr 24 08:09:11 2014 +0200

    drm/i915: Catch dirt in unused execbuffer fields

Comment from Chris' review:

"To be fair, it is a sensible value if one supposes a Region style API to
cliprects. Under that API, DR[14] define the extents of the clip region,
and ((0,0), (0,0)) [DR1==DR4==0] would mean all clipped, do not draw
anything."

v2: Pimp commit message a bit and remove the double space.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78494
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jörg Otte <jrg.otte@gmail.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-13 17:16:13 +02:00
Daniel Vetter
d8ffa60b52 drm/i915: WARN_ON fence pin leaks
The fence pin count should always be <= the bo pin count. If that's
not the case then we have a funny problem and are leaking references
somewhere.

Which means we can catch fence pin leaks by checking for the same
upper limit as we do for the bo pin count. Inspired by a discussion
with Ville about a fence leak igt testcase.

v2: Also check for fence->pin_count <= ggtt_vma->pin_count, since that
might catch a leak even quicker. Also de-inline them, they're getting
too big.

v3: Don't separately check for MAX_PIN_COUNT since the > vma->pin_count
check will catch that already (Chris).

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-13 17:16:12 +02:00
Ville Syrjälä
56ef52cad5 drm/i915: Kill vblank waits after pipe enable on gmch platforms
The pipe might not start to actually run until the port has been enabled
(depends on the platform and port type). So don't try to wait for vblank
after we enabled the pipe but haven't yet enabled the port.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
References: https://bugs.freedesktop.org/show_bug.cgi?id=77297
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-13 17:16:04 +02:00
Ville Syrjälä
9ab0460b1b drm/i915: Disable/enable planes as the first/last thing during modeset on gmch platforms
We already moved the plane disable/enable to happen as the first/last
thing on every other platforms. Follow suit with gmch platforms.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Frob drm_vblank_on conflict, as usual.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-13 14:13:25 +02:00
Oscar Mateo
d153337958 drm/i915: Ringbuffer signal func for the second BSD ring
This is missing in:

commit 78325f2d27
Author: Ben Widawsky <benjamin.widawsky@intel.com>
Date:   Tue Apr 29 14:52:29 2014 -0700

    drm/i915: Virtualize the ringbuffer signal func

Looks to me like a rebase side-effect...

Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-13 14:13:24 +02:00
Ville Syrjälä
36dfcea47a x86/gpu: Sprinkle const, __init and __initconst to stolen memory quirks
gen8_stolen_size() is missing __init, so add it.

Also all the intel_stolen_funcs structures can be marked
__initconst.

intel_stolen_ids[] can also be made const if we replace the
__initdata with __initconst.

Cc: Ingo Molnar <mingo@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-13 14:13:23 +02:00
Damien Lespiau
3e3b2c3908 x86/gpu: Implement stolen memory size early quirk for CHV
CHV uses the same bits as SNB/VLV to code the Graphics Mode Select field
(GFX stolen memory size) with the addition of finer granularity modes:
4MB increments from 0x11 (8MB) to 0x1d.

Values strictly above 0x1d are either reserved or not supported.

v2: 4MB increments, not 8MB. 32MB has been omitted from the list of new
    values (Ville Syrjälä)

v3: Also correctly interpret GGMS (GTT Graphics Memory Size) (Ville
    Syrjälä)

v4: Don't assign a value that needs 20bits or more to a u16 (Rafael
    Barbalho)

[vsyrjala: v5: Split from i915 changes and add chv_stolen_funcs]

Cc: Ingo Molnar <mingo@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rafael Barbalho <rafael.barbalho@intel.com>
Tested-by: Rafael Barbalho <rafael.barbalho@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-13 14:13:23 +02:00
Damien Lespiau
d7f25f23d2 drm/i915/chv: Implement stolen memory size detection
CHV uses the same bits as SNB/VLV to code the Graphics Mode Select field
(GFX stolen memory size) with the addition of finer granularity modes:
4MB increments from 0x11 (8MB) to 0x1d.

Values strictly above 0x1d are either reserved or not supported.

v2: 4MB increments, not 8MB. 32MB has been omitted from the list of new
    values (Ville Syrjälä)

v3: Also correctly interpret GGMS (GTT Graphics Memory Size) (Ville
    Syrjälä)

v4: Don't assign a value that needs 20bits or more to a u16 (Rafael
    Barbalho)

[vsyrjala: v5: Split the early quirks to another patch]

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rafael Barbalho <rafael.barbalho@intel.com>
Tested-by: Rafael Barbalho <rafael.barbalho@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-13 14:13:22 +02:00
Ville Syrjälä
7895a81dcf drm/i915/chv: CHV doesn't have CRT output
No CRT output on CHV, so don't call intel_crt_init().

v2: Don't disable CRT on HAS.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v1)
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-13 14:13:18 +02:00
Ville Syrjälä
70b23a980e drm/i915/chv: Add DPLL state readout support
Add chv_crtc_clock_get() to read out the DPLL settings.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
[danvet: Fix compile due to bikeshedded headers in an earlier patch.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-13 14:13:06 +02:00
Chon Ming Lee
44f37d1f52 drm/i915/chv: Pipe select change for DP and HDMI
With additional of pipe C, current 1 bit registers for pipe select
for HDMI and DP are no longer able to gather for 3 pipes. As a result,
new bits location in the same registers are added.

For HDMI, VLV uses bit 30, CHV uses bit 24-25.

For DP, VLV uses bit 30, CHV uses bit 16-17.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-12 19:50:16 +02:00
Chon Ming Lee
e4a1d8467d drm/i915/chv: Add phy supports for Cherryview
Added programming phy layer for CHV based on "Application note for 1273
CHV Display phy".

v2: Rebase the code and do some cleanup.
v3: Rework based on Ville review.
    -Fix the macro where the ch info need to swap, and add parens to ?
	 operator.
	-Fix wrong bit define for DPIO_PCS_SWING_CALC_0 and
	 DPIO_PCS_SWING_CALC_1 and rename for meaningful.
    -Add some comments for CHV specific DPIO registers.
    -Change the dp margin registery value to decimal to align with the
	 doc.
	-Fix the not clearing some value in vlv_dpio_read before write again.
    -Create new hdmi/dp encoder function for chv instead of share with
	valleyview.
v4: Rebase the code after rename the DPIO registers define and upstream
	change.
    Based on Ville review.
    -For unique transition scale selection, after Ville point out, look
	 like the doc might wrong for the bit 26.  Use bit 27 for ch0 and
	 ch1.
	-Break up some dpio write value into two/three steps for readability.
	-Remove unrelated change.
    -Add some shift define for some registers instead just give the hex
	value.
    -Fix a bug where write to wrong VLV_TX_DW3.
v5: Based on Ville review.
	- Move tx lane latency optimal setting from chv_dp_pre_pll_enable to
	  chv_pre_enable_dp, and chv_hdmi_pre_pll_enable to
	  chv_hdmi_pre_enable respectively.
 	- Fix typo in one margin_reg_value for DP_TRAIN_VOLTAGE_SWING_400.
	- Clear DPIO_TX_UNIQ_TRANS_SCALE_EN for DP and HDMI.
	- Mask the old deemph and swing bits for hdmi.
v6: Remove stub for pre_pll_enable for dp and hdmi.

Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[vsyrjala: Don't touch panel power sequencing on DP]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-12 19:50:15 +02:00
Chon Ming Lee
9d556c99ed drm/i915/chv: Add update and enable pll for Cherryview
Added programming PLL for CHV based on "Application note for 1273 CHV
Display phy".

v2:  -Break the common lane reset into another patch.
     -Break the clock calculation into another patch.

    -The changes are based on Ville review.
    -Rework based on DPIO register define naming convention change.
    -Break the dpio write into few lines to improve readability.
    -Correct the udelay during chv_enable_pll.
    -clean up some magic numbers with some new define.
    -program the afc recal bit which was missed.

v3: Based on Ville review
	-  minor correction of the bit defination
    - add deassert/propagate data lane reset

v4: Corrected the udelay between dclkp enable and pll enable.
	Minor comment and better way to clear the TX lane reset.

v5: Squash in fixup from Rafael Barbalho.

[vsyrjala: v6: Polish the defines (Imre)]

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-12 19:50:14 +02:00
Chon Ming Lee
ef9348c860 drm/i915/chv: find the best divisor for the target clock v4
Based on the chv clock limit, find the best divisor.

The divisor data has been verified with this spreadsheet.
P1273_DPLL_Programming Spreadsheet.

v2: Rebase the code and change the chv_find_best_dpll based on new
standard way to use intel_PLL_is_valid.  Besides, clean up some extra
variables.

v3: Ville suggest better fixed point for m2 calculation.

v4: -Add comment for the limit is compute using fast clock. (Ville)
	-Don't pass the request clock to chv_clock, as the same function will
	 be use clock readout, which doens't have request clock. (Ville)
	-Add and use DIV_ROUND_CLOSEST_ULL to consistent with other clock
	calculation. (Ville)
	-Fix the dp m2 after m2 has stored fixed point. (Ville)

Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
[vsyrjala: Avoid div-by-zero in chv_clock()]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-12 19:50:14 +02:00
Chon Ming Lee
076ed3b295 drm/i915/chv: Trigger phy common lane reset
During cold boot, the display controller needs to deassert the common
lane reset.  Only do it once during intel_init_dpio for both PHYx2 and
PHYx1.

Besides, assert the common lane reset when disable pll.  This still
to be determined whether need to do it by driver.

Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
[vsyrjala: Don't disable DPIO PLL when using DSI]
[vsyrjala: Don't call vlv_disable_pll() by accident on CHV]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
[danvet: Move part of a moved comment back as suggested by Imre since
it's valid for both byt and chv.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-12 19:50:13 +02:00
Chon Ming Lee
eb69b0e59a drm/i915/chv: Add vlv_pipe_to_channel
Cherryview has 3 pipes.  Some of the pll dpio offset calculation is
based on pipe number.  Need to use vlv_pipe_to_channel to calculate the
correct phy channel to use for the pipe.

Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-12 19:50:12 +02:00
Chon Ming Lee
00fc31b72e drm/i915/chv: Update Cherryview DPLL changes to support Port D. v2
The additional DPLL registers added to support Port D.  Besides, add
some new PHY control and status registers based on B-spec.

v2: Based on Ville review
	- Corrected DPIO_PHY_STATUS offset and name.
    - Rebase based on upstream change after introduce enum dpio_phy and
      enum dpio_channel.

v3: Rebased on top of Antti's 3-pipe prep patch. Note that the new offsets for
the DPLL registers aren't in place yet, so this introduces a slight regression.
But since 3 pipe support isn't fully enabled yet anyaway in -internal this
shouldn't matter too much.

Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-12 19:50:12 +02:00
Chon Ming Lee
a09cadddde drm/i915/chv: Add DPIO offset for Cherryview. v3
CHV has 2 display phys.  First phy (IOSF offset 0x1A) has two channels,
and second phy (IOSF offset 0x12) has single channel.  The first phy is
used for port B and port C, while second phy is only for port D.

v2: Move the pipe to determine which phy to select for
vlv_dpio_read/vlv_dpio_write to another patch. (Daniel)
v3: Rebase the code based on rework on how to calculate DPIO offset.

Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-12 19:50:11 +02:00
Ville Syrjälä
c294c545f7 drm/i915/chv: Add DDL register defines for Cherryview
Fill in the sprite bits for DDL1/DDL2 registers, and add DDL3.

Still need to write the code to use these...

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-12 19:50:11 +02:00
Ville Syrjälä
7d87a7f709 srm/i915/chv: Add Cherryview PCI IDs
v2: Update to also fill in the new num_pipes field.

v3: Rebase on top of the pciid extraction.

v4: Switch from info->has*ring to info->ring mask. Also add VEBOX support whiel
at it.

v5: s/CHV_PCI_IDS/CHV_IDS/, and drop the trailing '\'

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-12 19:50:07 +02:00
Ville Syrjälä
a4565da8ae drm/i915/chv: Initial clock gating support for Cherryview
CHV clock gating isn't identical to VLV, so add a new function
for it. This is only a start, and further changes are needed as
the details become available.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-12 19:50:00 +02:00
Ville Syrjälä
74e1ca8cf0 drm/i915/chv: Add Cherryview interrupt registers into debugfs
Make i915_gem_interrupt debugfs file functional on CHV.

FIXME: Extract helpers for gt/display blocks to shrink the function a
bit and avoid duplication between bdw/chv (and other similar cases for
upstream).

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-12 19:49:59 +02:00
Daniel Vetter
45a83f84b7 drm/i915: Drop unecessary casts in i915_irq.c
Inspired by a review bikeshed from Jani.

Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-12 19:49:50 +02:00
Ville Syrjälä
43f328d77b drm/i915/chv: Preliminary interrupt support for Cherryview
CHV has the Gen8 master interrupt register, as well as Gen8
GT/PCU interrupt registers.

The display block is based on VLV, with the main difference
of adding pipe C.

v2: Rewrite the order of operations to make more sense
    Don't bail out if MASTER_CTL register doesn't show an interrupt,
    as display interrupts aren't reported there.

v3: Rebase on top of Egbert Eich's hpd irq handling rework by using
the relevant port hotplug logic like for vlv.

v4: Rebase on top of Ben's gt irq #define refactoring.

v5: Squash in gen8_gt_irq_handler refactoring from Zhao Yakui
<yakui.zhao@intel.com>

v6: Adapt to upstream changes, dev_priv->irq_received is gone.

v7: Enable 3 the commented-out 3 pipe support.

v8: Rebase on top of Paulo's irq setup rework, use the renamed macros from
upstream.

v9: Grab irq_lock around i915_enable_pipestat()

FIXME: There's probably some potential for more shared code between bdw and chv.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v2)
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
[danvet: Drop the unnecessary cast Jani spotted.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-12 19:49:41 +02:00