GitHub/LineageOS/android_kernel_motorola_exynos9610.git
10 years agodrm/i915: Simplify relocate_entry_gtt() and make 64-bit safe
Chris Wilson [Sun, 10 Aug 2014 05:29:11 +0000 (06:29 +0100)]
drm/i915: Simplify relocate_entry_gtt() and make 64-bit safe

Even though we should not try to use 4+GiB GTTs on 32-bit systems, by
using a local variable we can future proof the code whilst making it
easier to read.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Appease checkpatch a bit.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Remove redundant list_empty(eb->vmas) tests in execbuffer
Chris Wilson [Sun, 10 Aug 2014 05:29:10 +0000 (06:29 +0100)]
drm/i915: Remove redundant list_empty(eb->vmas) tests in execbuffer

Part of the pre-validation for an execbuffer call is that there is at
least one object in the execlist. As we bail if we fail to lookup any
object, we can be sure that after the eb_lookup_vma() there is at least
one object in the vma list and so we do not need to assert.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ben Widawsky <benjamin.widawsky@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Pre-validate the NEED_GTTS flag for execbuffer
Chris Wilson [Sun, 10 Aug 2014 05:29:08 +0000 (06:29 +0100)]
drm/i915: Pre-validate the NEED_GTTS flag for execbuffer

We have an implementation requirement that precludes the user from
requesting a ggtt entry when the device is operating in ppgtt mode. Move
the current check from inside the execbuffer object collation to the
prevalidation phase.

v2: Roll both invalid flags checks into one

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Fix secure dispatch with full ppgtt
Daniel Vetter [Mon, 11 Aug 2014 10:08:58 +0000 (12:08 +0200)]
drm/i915: Fix secure dispatch with full ppgtt

Based upon a hunk from a patch from Chris Wilson, but augmented to:
- Process the batch in the full ppgtt vm so that self-relocations
  match again with userspace's expectations..
- Add a comment why plain pin for the global gtt binding is safe at
  that point.

v2: Drop local bind_vm variable (Chris).

v3: Explain why this works despite the lack of proper active tracking
for the ggtt batch vma.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ben Widawsky <benjamin.widawsky@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Agnostic INTEL_INFO
Chris Wilson [Sat, 9 Aug 2014 18:18:43 +0000 (19:18 +0100)]
drm/i915: Agnostic INTEL_INFO

Adapt the macro so that we can pass either the struct drm_device or the
struct drm_i915_private pointers and get the answer we want. Over time,
my plan is to convert all users over to using drm_i915_private and so
trimming down the pointer dance. Having spent a few hours chasing that
goal and achieved over 8k of object code saving, it appears to be a
worthwhile target. This interim macro allows us to slowly convert over.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Drop the (struct drm_device *) cast per the m-l discussion.
Also explain the seemingly unecessary first cast.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Double check ring is idle before declaring the GPU wedged
Chris Wilson [Mon, 11 Aug 2014 08:21:35 +0000 (09:21 +0100)]
drm/i915: Double check ring is idle before declaring the GPU wedged

During ring initialisation, sometimes we observe, though not in
production hardware, that the idle flag is not set even though the ring
is empty. Double check before giving up.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Remove set but unused 'gt_perf_status'
Damien Lespiau [Sat, 9 Aug 2014 22:00:58 +0000 (23:00 +0100)]
drm/i915: Remove set but unused 'gt_perf_status'

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Make intel_disable_shared_dpll() static
Damien Lespiau [Sat, 9 Aug 2014 22:00:56 +0000 (23:00 +0100)]
drm/i915: Make intel_disable_shared_dpll() static

Found with sparse.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Copy PCI device id into the device info block
Chris Wilson [Sat, 9 Aug 2014 18:18:42 +0000 (19:18 +0100)]
drm/i915: Copy PCI device id into the device info block

This is so that we can make the drm_i915_private->info always the
preferred source for chipset type and feature queries.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Remove fenced_gpu_access and pending_fenced_gpu_access
Chris Wilson [Sat, 9 Aug 2014 16:37:24 +0000 (17:37 +0100)]
drm/i915: Remove fenced_gpu_access and pending_fenced_gpu_access

This migrates the fence tracking onto the existing seqno
infrastructure so that the later conversion to tracking via requests is
simplified.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Force CPU relocations if not GTT mapped
Chris Wilson [Mon, 11 Aug 2014 10:00:12 +0000 (12:00 +0200)]
drm/i915: Force CPU relocations if not GTT mapped

Move the decision on whether we need to have a mappable object during
execbuffer to the fore and then reuse that decision by propagating the
flag through to reservation. As a corollary, before doing the actual
relocation through the GTT, we can make sure that we do have a GTT
mapping through which to operate.

Note that the key to make this work is to ditch the
obj->map_and_fenceable unbind optimization - with full ppgtt it
doesn't make a lot of sense any more anyway.

v2: Revamp and resend to ease future patches.
v3: Refresh patch rationale

References: https://bugs.freedesktop.org/show_bug.cgi?id=81094
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ben Widawsky <benjamin.widawsky@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
[danvet: Explain why obj->map_and_fenceable is key and split out the
secure batch fix.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Only perform set-to-gtt domain for objects bound to the global gtt
Chris Wilson [Sat, 9 Aug 2014 16:37:22 +0000 (17:37 +0100)]
drm/i915: Only perform set-to-gtt domain for objects bound to the global gtt

If an object is not bound into the global GTT, then it cannot be
accessed via the GTT. This restores the original code that was muddled
by ppGTT. In the process, we remove a WARN that had long outlived its
usefulness and was simply being coded around instead.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Fix wrong number of HDMI translation entries
Damien Lespiau [Sat, 9 Aug 2014 15:29:31 +0000 (16:29 +0100)]
drm/i915: Fix wrong number of HDMI translation entries

I keep telling myself that those tables aren't great because their size
is the number of dwords we need to program and not the number of entries
(number of dwords = number of entries * 2).

And... I got it wrong when I refactored the code. Fortunately, it was
only wrong when the VBT table (or the code parsing it) is itself
erroneous. Long story short, it shouldn't matter, but still, there's a
potential array overflow and random programming of the DDI translation
tables.

Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
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>
10 years agodrm/i915: Continuation of future readiness series
Sonika Jindal [Mon, 11 Aug 2014 03:36:39 +0000 (09:06 +0530)]
drm/i915: Continuation of future readiness series

Removing the check for HAS_PCH_SPLIT, it looks redundant here. Anyways all the
platforms are checked separately.

v2: Reordering as per the gen (Ville)

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: fix i915_interrupt_info on BDW
Paulo Zanoni [Fri, 8 Aug 2014 20:45:32 +0000 (17:45 -0300)]
drm/i915: fix i915_interrupt_info on BDW

Currently, if the machine is runtime suspended an you read the file,
you will get an "Unclaimed register" error message.

Testcase: igt/pm_rpm/debugfs-read
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Call .update_primary_plane in intel_{enable, disable}_primary_hw_plane()
Ville Syrjälä [Fri, 8 Aug 2014 18:51:11 +0000 (21:51 +0300)]
drm/i915: Call .update_primary_plane in intel_{enable, disable}_primary_hw_plane()

Make the intel_{enable,disable}_primary_hw_plane() simply call
.update_primary_plane(), thus eliminating the rmw from these functions
which should help the poor old 830M.

Now we can also remove the .update_primary_plane() from the
.crtc_enable() hooks because we end up calling it via
intel_crtc_enable_planes()->intel_enable_primary_hw_plane().

This also has the nice benefit of making primary planes a bit closer to
the way we handle sprite planes during modesets.

v2: Just write 0 to DSPCNTR and DSPSURF/DSPADDR if the plane is (to be)
    disabled. Quicker, and more importantly avoids an oops when fb==NULL
    due to BIOS fb takeover failure.
    Pimp the commit message a bit (Matt)
v3: Drop useless primary_enabled checks when setting DISPLAY_PLANE_ENABLE

Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Eliminate rmw from .update_primary_plane()
Ville Syrjälä [Fri, 8 Aug 2014 18:51:10 +0000 (21:51 +0300)]
drm/i915: Eliminate rmw from .update_primary_plane()

Move the entire DSPCNTR register setup into the .update_primary_plane()
functions. That's where it belongs anyway and it'll also help 830M which
has the extra problem that plane registers reads will return the value
latched at the last vblank, not the value that was last written.

Also move DSPPOS and DSPSIZE setup there.

v2: Don't move variable initialization to avoid churn later

Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Fix erroneous conversion to u8
Damien Lespiau [Fri, 8 Aug 2014 18:25:57 +0000 (19:25 +0100)]
drm/i915: Fix erroneous conversion to u8

adj was defined as u8. The issue is last_adj can be negative and adj is
initialized with:

  adj = dev_priv->rps.last_adj;

and we were also happily doing things like:

  if (adj < 0)

(thank static analysers!)

v2: Make new_delay an int in case we overflow the u8 in the intermediate
    computations. new_delay will get clamped at the end anyway. (Ville)

Cc: Deepak S <deepak.s@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
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>
10 years agodrm/i915: Update DRIVER_DATE to 20140808
Daniel Vetter [Fri, 8 Aug 2014 18:44:59 +0000 (20:44 +0200)]
drm/i915: Update DRIVER_DATE to 20140808

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: No busy-loop wait_for in the ring init code
Daniel Vetter [Thu, 7 Aug 2014 14:05:39 +0000 (16:05 +0200)]
drm/i915: No busy-loop wait_for in the ring init code

Doing a 1s wait (tops) with the cpu is a bit excessive. Tune it down
like everything else in that code.

v2: Also insert the missing space Chris spotted.

Cc: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Add sprite watermark programming for VLV and CHV
Gajanan Bhat [Thu, 7 Aug 2014 11:33:30 +0000 (17:03 +0530)]
drm/i915: Add sprite watermark programming for VLV and CHV

Program DDL register as part of sprite watermark programming for CHV and VLV.

v2: Rename DRAIN_LATENCY_MAX by DRAIN_LATENCY_MASK

v3: Addressed review comments by Ville
    - Changed Sprite DDL definitions to more generic to avoid multiple if-else
    - Changed bit masking to customary form
    - Changed to bitwise shorthand operator for sprite_dl assignment

Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Round-up clock and limit drain latency
Gajanan Bhat [Tue, 5 Aug 2014 17:45:54 +0000 (23:15 +0530)]
drm/i915: Round-up clock and limit drain latency

Round up clock computation and limit drain latency to maximum of 0x7F.

Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Generalize drain latency computation
Gajanan Bhat [Wed, 6 Aug 2014 20:28:24 +0000 (01:58 +0530)]
drm/i915: Generalize drain latency computation

Modify drain latency computation to use it for any plane. Same function can be
used for primary, cursor and sprite planes.

v2: Adressed review comments by Imre and Ville.
    - Moved clock round up in separate patch
    - Added WARN check for clock and pixel size
    - Simplified bit masking
    - Use cursor_base instead of reg read

v3: Changed to bitwise shorthand operator for plane_dl assignment.

Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Free pending page flip events at .preclose()
Ville Syrjälä [Wed, 6 Aug 2014 11:02:51 +0000 (14:02 +0300)]
drm/i915: Free pending page flip events at .preclose()

If there are pending page flips when the fd gets closed those page
flips may have events associated to them. When the page flip eventually
completes it will queue the event to file_priv->event_list, but that
may be too late and file_priv->event_list has already been cleaned up.
Thus we leak a bit of kernel memory in the form of the event structure.

To avoid such problems clear out such pending events from
intel_crtc->unpin_work at ->preclose(). Any event that already made it
to file_priv->event_list will get cleaned up by the drm_release_events()
a bit later.

We can ignore the file_priv->event_space accounting since file_priv is
going away. This is already how drm core deals with pending vblank
events, which are maintained by the drm core.

What saves us from a total disaster (ie. dereferencing and alrady
freed file_priv) is the fact that the fb descruction triggers a modeset
and there we wait for pending flips.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: clean up PPGTT checking logic
Jesse Barnes [Tue, 5 Aug 2014 14:51:18 +0000 (07:51 -0700)]
drm/i915: clean up PPGTT checking logic

sanitize_enable_ppgtt is the function that checks all the conditions,
honoring a forced ppgtt status or doing auto-detect as necessary.  Just
make sure it returns the right value in all cases and use that in the
macros instead of the confusing intel_enable_ppgtt() function.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
[danvet: Don't reenable full ppgtt through the backdoor.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Polish the chv cmnlane resrt macros
Ville Syrjälä [Fri, 27 Jun 2014 16:52:13 +0000 (19:52 +0300)]
drm/i915: Polish the chv cmnlane resrt macros

Replace the semi-funky cmnlane assert/deassert macros with something a
bit more conventional. Also protect the macro arguments properly (also
for  PHY_POWERGOOD()).

Reviewed-by: Rafael Barbalho <rafael.barbalho@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Hack to tie both common lanes together on chv
Ville Syrjälä [Fri, 27 Jun 2014 16:49:57 +0000 (19:49 +0300)]
drm/i915: Hack to tie both common lanes together on chv

It looks like frobbing the cmnreset line on pne PHY disturbs the other
PHY on chv. The result is a black screen. On HDMI it's just a flash of
black, but DP usually falls over and can't get back up.

As a workaround set up the power domains so that both common lane
wells power up and down together. I also tried leaving the cmnreset
deasserted even the if the power well goes down but that didn't seem
acceptable to the PHY.

Reviewed-by: Rafael Barbalho <rafael.barbalho@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Add cherryview_update_wm()
Ville Syrjälä [Thu, 26 Jun 2014 14:03:06 +0000 (17:03 +0300)]
drm/i915: Add cherryview_update_wm()

CHV has a third pipe so we need to compute the watermarks for its
planes. Add cherryview_update_wm() to do just that.

v2: Rebase on top of Imre's cxsr changes
v3: Pass crtc to vlv_update_drain_latency()

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Update DDL only for current CRTC
Gajanan Bhat [Wed, 16 Jul 2014 12:54:03 +0000 (18:24 +0530)]
drm/i915: Update DDL only for current CRTC

Instead of looping through all CRTCs, update DDL for current CRTC for which
watermark is being updated.
CHV is confirmed to have precision of 32/64 which is same as VLV.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Parametrize VLV_DDL registers
Ville Syrjälä [Thu, 26 Jun 2014 14:02:37 +0000 (17:02 +0300)]
drm/i915: Parametrize VLV_DDL registers

The VLV/CHV DDL registers are uniform, and neatly enough the register
offsets are sane so we can easily unify them to a single set of defines
and just pass the pipe as the parameter to compute the register offset.

Note that we now fill out the drain latency for pipe C on CHV which we
didn't do before. The rest of the pipe C watermarks are still untouched
but that will be remedied later by adding a proper cherryview_update_wm()
function.

v2: Add a note about CHV pipe C changes (Paulo)

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Fill out the FWx watermark register defines
Ville Syrjälä [Wed, 11 Jun 2014 13:51:18 +0000 (16:51 +0300)]
drm/i915: Fill out the FWx watermark register defines

Add defines for all the watermark registers on modernish gmch platforms.

VLV has increased the number of bits available for certain watermaks so
expand the masks appropriately. Also vlv and chv have added some extra
FW registers.

Not sure what happened on chv because a new register called FW9 is now
at the offset where FW7 was on vlv, while FW7 and FW8 (another new
register) have been moved off somewhere else. Oh well, well just need
two defines for FW7 then.

v2: Fix DSPHOWM1 offset (Paulo)

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm: Resetting rotation property
Sonika Jindal [Tue, 5 Aug 2014 05:56:57 +0000 (11:26 +0530)]
drm: Resetting rotation property

Reset rotation property to 0.

v2: Resetting after disabling the plane

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Add rotation property for sprites
Ville Syrjälä [Tue, 5 Aug 2014 05:56:55 +0000 (11:26 +0530)]
drm/i915: Add rotation property for sprites

Sprite planes support 180 degree rotation. The lower layers are now in
place, so hook in the standard rotation property to expose the feature
to the users.

v2: Moving rotation_property to mode_config

Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm: Add rotation_property to mode_config
Sonika Jindal [Tue, 5 Aug 2014 05:56:54 +0000 (11:26 +0530)]
drm: Add rotation_property to mode_config

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Make intel_plane_restore() return an error
Ville Syrjälä [Tue, 5 Aug 2014 05:56:53 +0000 (11:26 +0530)]
drm/i915: Make intel_plane_restore() return an error

Propagate the error from intel_update_plane() up through
intel_plane_restore() to the caller. This will be used for
rollback purposes when setting properties fails.

Cc: dri-devel@lists.freedesktop.org
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>
10 years agodrm/i915: Add 180 degree sprite rotation support
Ville Syrjälä [Tue, 5 Aug 2014 05:56:52 +0000 (11:26 +0530)]
drm/i915: Add 180 degree sprite rotation support

The sprite planes (in fact all display planes starting from gen4)
support 180 degree rotation. Add the relevant low level bits to the
sprite code to make use of that feature.

The upper layers are not yet plugged in.

v2: HSW handles the rotated buffer offset automagically

v3: BDW also handles the rotated buffer offset automagically

Testcase: igt/kms_rotation_crc
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Sagar Kamble <sagar.a.kamble@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Introduce a for_each_intel_encoder() macro
Damien Lespiau [Tue, 5 Aug 2014 10:29:37 +0000 (11:29 +0100)]
drm/i915: Introduce a for_each_intel_encoder() macro

Following the established idom, let's provide a macro to iterate through
the encoders.

spatch helps, once more, for the substitution:

  @@
  iterator name list_for_each_entry;
  iterator name for_each_intel_encoder;
  struct intel_encoder * encoder;
  struct drm_device * dev;
  @@
  -list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
  +for_each_intel_encoder(dev, encoder) {
    ...
  }

I also modified a few call sites by hand where a pointer to mode_config
was directly used (to avoid overflowing 80 chars).

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
[danvet: Wrap paramters correctly in the macro and remove spurious
space checkpatch noticed.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Demote the DRRS messages to debug messages
Damien Lespiau [Tue, 5 Aug 2014 09:39:42 +0000 (10:39 +0100)]
drm/i915: Demote the DRRS messages to debug messages

While those messages are interesting, there aren't _that_ interesting.
We don't need them in the kernel logs by default.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: remove duplicate register defines
Paulo Zanoni [Fri, 1 Aug 2014 19:19:54 +0000 (16:19 -0300)]
drm/i915: remove duplicate register defines

cat i915_reg.h | sort | uniq -d | grep define

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Remove now useless comments about the translation values
Damien Lespiau [Fri, 1 Aug 2014 10:07:57 +0000 (11:07 +0100)]
drm/i915: Remove now useless comments about the translation values

We used to carry a default HDMI value in entry 9, but this entry got
removed for both HSW and BDW.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915/bdw: Remove the HDMI/DVI entry from the DP/eDP/FDI tables
Damien Lespiau [Fri, 1 Aug 2014 10:07:56 +0000 (11:07 +0100)]
drm/i915/bdw: Remove the HDMI/DVI entry from the DP/eDP/FDI tables

We always write entries 0 to 8 from the DDI translation tables and then
entry 9 for HDMI/DVI with the help of the VBT. We then don't need the
failsafe HDMI entry in the DP/eDP/FDI tables.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915/bdw: Provide the BDW specific HDMI buffer translation table
Damien Lespiau [Fri, 1 Aug 2014 10:07:55 +0000 (11:07 +0100)]
drm/i915/bdw: Provide the BDW specific HDMI buffer translation table

Among the changes, the tables has only 10 entries instead of 12 on HSW
and the index the the 800mV/0dB entry has changed.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Gather the HDMI level shifter logic into one place
Damien Lespiau [Fri, 1 Aug 2014 10:07:54 +0000 (11:07 +0100)]
drm/i915: Gather the HDMI level shifter logic into one place

The knowledge about the HDMI/DVI DDI translation table was scattered
around.
  - info->hdmi_level_shift was initialized with 6, the index of the 800
    mV, 0dB translation
  - A check on the VBT value was done to ensure it wasn't overflowing
    the translation table (< 0xC)
  - The actual programming was done in intel_ddi.c

As we need to change that knowledge for Broadwell, let's gather
everything into one place.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Introduce FBC False Color for debug purposes.
Rodrigo Vivi [Fri, 1 Aug 2014 09:04:45 +0000 (02:04 -0700)]
drm/i915: Introduce FBC False Color for debug purposes.

With this bit enabled, HW changes the color when compressing frames for
debug purposes.

ALthough the simple way to enable a single bit is over intel_reg_write,
this value is overwriten on next update_fbc so depending on the workload
it is not possible to set this bit with intel-gpu-tools. So this patch
introduces a persistent way to enable false color over debugfs.

v2: Use DEFINE_SIMPLE_ATTRIBUTE as Daniel suggested
v3: (Ville) only do false color for IVB+ since according to spec bit is
    MBZ before IVB.
v4: We don't have FBC on valleyview nor on cherryview (Ben)
v5: s/!HAS_PCH_SPLIT/!HAS_FBC (Ville)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Align intel_dsi*.c files a bit
Daniel Vetter [Wed, 30 Jul 2014 20:34:27 +0000 (22:34 +0200)]
drm/i915: Align intel_dsi*.c files a bit

I'm not really that insisting on checkpath compliance, but ragged
function paramter alignment does get me. Please adjust your editor to
just do this for you.

Cc: Shobhit Kumar <shobhit.kumar@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Add support for Video Burst Mode for MIPI DSI
Shobhit Kumar [Wed, 30 Jul 2014 15:04:57 +0000 (20:34 +0530)]
drm/i915: Add support for Video Burst Mode for MIPI DSI

v2: Updated the error log as suggested by Imre

Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Clarify CHV swing margin/deemph bits
Ville Syrjälä [Fri, 27 Jun 2014 23:04:03 +0000 (02:04 +0300)]
drm/i915: Clarify CHV swing margin/deemph bits

CHV display PHY registes have two swing margin/deemph settings. Make it
clear which ones we're using.

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>
10 years agodrm/i915: Call intel_{dp, hdmi}_prepare for chv
Ville Syrjälä [Fri, 27 Jun 2014 23:04:02 +0000 (02:04 +0300)]
drm/i915: Call intel_{dp, hdmi}_prepare for chv

CHV was forgotten the intel_{dp,hdmi}_prepare() were introduced (or the
chv patches were still in flight?). Call these when enabling the ports.

Things tend to work much better when we actually write something
to the port registers :)

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>
10 years agodrm/i915: Split chv_update_pll() apart
Ville Syrjälä [Fri, 27 Jun 2014 23:04:00 +0000 (02:04 +0300)]
drm/i915: Split chv_update_pll() apart

Split chv_update_pll() into two parts ala:
 commit bdd4b6a655749970cc632aafc5fd596c07b60b1c
 Author: Daniel Vetter <daniel.vetter@ffwll.ch>
 Date:   Thu Apr 24 23:55:11 2014 +0200

    drm/i915: Extract vlv_prepare_pll

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>
10 years agodrm/i915: Leave DPLL ref clocks on
Ville Syrjälä [Fri, 27 Jun 2014 23:03:59 +0000 (02:03 +0300)]
drm/i915: Leave DPLL ref clocks on

We enable the DPLL refclock already when bringing up the cmnlane power
well, so also leave it on when otherwise disabling the DPLL.

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>
10 years agodrm/i915: Disable cdclk changes for chv until Punit is ready
Ville Syrjälä [Fri, 27 Jun 2014 23:03:58 +0000 (02:03 +0300)]
drm/i915: Disable cdclk changes for chv until Punit is ready

Punit seems a bit WIP still. Disable cdclk changes until we have
hardware where it works.

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>
10 years agodrm/i915: Add cdclk change support for chv
Ville Syrjälä [Fri, 27 Jun 2014 23:03:57 +0000 (02:03 +0300)]
drm/i915: Add cdclk change support for chv

Looks like the Punit is supposed to support the 400MHz cdclk directly on
chv, so we don't need the vlv tricks.

FIXME: Punit doesn't seem ready for this yet on current hw

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>
10 years agod rm/i915: freeze display before the interrupts and GT
Paulo Zanoni [Thu, 17 Jul 2014 20:43:46 +0000 (17:43 -0300)]
d rm/i915: freeze display before the interrupts and GT

Since we started using intel_runtime_pm_disable_interrupts() at normal
(non-runtime) suspend/resume, we had to remove a WARN from
ironlake_disable_display_irq to avoid a case where we were doing the
correct thing and the WARN was not really needed. The problem is that
the WARN was useful in other cases, and its removal can hide some bugs
that we would catch automatically.

To be able to add back the WARN, we have to call intel_crtc_control()
before interrupts are disabled, which is what this patch currently
does.

Also notice that Ville's patch from the Watermarks series "drm/i915:
Leave interrupts enabled while disabling crtcs during suspend" also
did a change that's equivalent to the one we're doing on this patch,
with the exception that its original patch, when applied to the
current tree, procduces a WARN.

Related commits:

commit daa390e5ee45cc051d6bf37b296901f2f92b002d
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
    drm/i915: don't warn if IRQs are disabled when shutting down display IRQs

commit e11aa362308f5de467ce355a2a2471321b15a35c
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
    drm/i915: use runtime irq suspend/resume in freeze/thaw

Note that the function part of this patch has already been done in

commit 0e32b39ceed665bfa4a77a4bc307b6652b991632
Author: Dave Airlie <airlied@redhat.com>
Date:   Fri May 2 14:02:48 2014 +1000

    drm/i915: add DP 1.2 MST support (v0.7)

with the fixup

commit 09b64267c1f72f2670fcde9f11e5453ce365ca23
Author: Dave Airlie <airlied@redhat.com>
Date:   Wed Jul 23 14:25:24 2014 +1000

    drm/i915: don't suspend gt until after we disable irqs and display (v2)

so all that's left from Paulo's patch is reinstating the WARNING.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Explain conflict resolution with Dave's DP MST patches with a
note in the commit message.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Make ddi_clock_gate() HSW/BDW specific
Daniel Vetter [Tue, 29 Jul 2014 18:57:08 +0000 (20:57 +0200)]
drm/i915: Make ddi_clock_gate() HSW/BDW specific

Turns out we were again way too naive and optimistic, of course things
will change.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Split the CDCLK retrieval per-platform
Damien Lespiau [Tue, 29 Jul 2014 17:06:24 +0000 (18:06 +0100)]
drm/i915: Split the CDCLK retrieval per-platform

This is only going to get worse, so split it now to avoid adding more
cases to the if/else ladder.

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Make intel_ddi_calculate_wrpll() HSW/BDW specific
Damien Lespiau [Tue, 29 Jul 2014 17:06:23 +0000 (18:06 +0100)]
drm/i915: Make intel_ddi_calculate_wrpll() HSW/BDW specific

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Split the BDW/HSW specific shared pll selection
Damien Lespiau [Tue, 29 Jul 2014 17:06:22 +0000 (18:06 +0100)]
drm/i915: Split the BDW/HSW specific shared pll selection

We'll need a different algorithm to select the shared DPLL.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Fix stale comment for intel_ddi_pll_select()
Damien Lespiau [Tue, 29 Jul 2014 17:06:21 +0000 (18:06 +0100)]
drm/i915: Fix stale comment for intel_ddi_pll_select()

Since the run-time PM on DPMS series, this function has an outdated
comment. Refresh it a bit.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Restrict hsw_dp_set_ddi_pll_sel() to HSW/BDW
Damien Lespiau [Tue, 29 Jul 2014 17:06:20 +0000 (18:06 +0100)]
drm/i915: Restrict hsw_dp_set_ddi_pll_sel() to HSW/BDW

Future platform will use config->ddi_pll_sel in a different way.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Extract the HSW/BDW shared dpll init code
Damien Lespiau [Tue, 29 Jul 2014 17:06:19 +0000 (18:06 +0100)]
drm/i915: Extract the HSW/BDW shared dpll init code

So we can easily provide an alternate implementation in the future.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Extract the HSW DDI selection code into its own function
Damien Lespiau [Tue, 29 Jul 2014 17:06:18 +0000 (18:06 +0100)]
drm/i915: Extract the HSW DDI selection code into its own function

Future platform will slightly change that.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Add a space to the shared DPLL debug message
Damien Lespiau [Tue, 29 Jul 2014 17:06:17 +0000 (18:06 +0100)]
drm/i915: Add a space to the shared DPLL debug message

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Specify when the PLL hw state fields are valid
Damien Lespiau [Tue, 29 Jul 2014 17:06:16 +0000 (18:06 +0100)]
drm/i915: Specify when the PLL hw state fields are valid

Not all those fields are valid on a given platform. Make it explicit.

Unions could also be used, but were cluttering some code paths with
if/else ladders.

v2: Don't use anonymous unions (Daniel)

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Add DP training pattern 3 for CHV
Ville Syrjälä [Fri, 27 Jun 2014 23:04:25 +0000 (02:04 +0300)]
drm/i915: Add DP training pattern 3 for CHV

CHV supports DP training pattern 3. Add the required stuff.

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>
10 years agodrm/i915: Split a few long debug prints
Ville Syrjälä [Fri, 27 Jun 2014 23:04:18 +0000 (02:04 +0300)]
drm/i915: Split a few long debug prints

Split some WM debug prints to multiple lines. This shouldn't hurt
grappability since the important part is at the start and the rest
is just repeated stuff for each pipe.

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>
10 years agodrm/i915: Fix read back of plane stride register
Rafael Barbalho [Mon, 28 Jul 2014 18:56:27 +0000 (19:56 +0100)]
drm/i915: Fix read back of plane stride register

According to the specifications bit 6 is actually valid in the stride register.

Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rafael Barbalho <rafael.barbalho@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Add chv port D TX wells
Ville Syrjälä [Fri, 27 Jun 2014 23:04:13 +0000 (02:04 +0300)]
drm/i915: Add chv port D TX wells

Add the TX wells for port D. The Punit subsystem numbers are a total
guess at this time. Also I'm not sure these even exist. Certainly the
Punit in current hardware doesn't deal with these.

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>
10 years agodrm/i915: Add chv port B and C TX wells
Ville Syrjälä [Fri, 27 Jun 2014 23:04:12 +0000 (02:04 +0300)]
drm/i915: Add chv port B and C TX wells

Add the TX wells for ports B and C just like on VLV.

Again Punit doesn't seem ready (or the wells don't even exist anymore)
so leave it iffed out.

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>
10 years agodrm/i915: Add per-pipe power wells for chv
Ville Syrjälä [Fri, 27 Jun 2014 23:04:11 +0000 (02:04 +0300)]
drm/i915: Add per-pipe power wells for chv

CHV has a power well for each pipe. Add the code to deal with them.

The Punit in current hardware doesn't seem ready for this yet, so
leave it iffed out.

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>
10 years agodrm/i915: Add disp2d power well for chv
Ville Syrjälä [Fri, 27 Jun 2014 23:04:10 +0000 (02:04 +0300)]
drm/i915: Add disp2d power well for chv

Not sure if it's still there since chv has per-pipe power wells.
At least with current Punit this doesn't work. Also the display
irq handling would need to be adjusted for pipe C. So leave the
code iffed out for now.

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>
10 years agodrm/i915: Kill intel_reset_dpio()
Ville Syrjälä [Fri, 27 Jun 2014 23:04:09 +0000 (02:04 +0300)]
drm/i915: Kill intel_reset_dpio()

Both VLV and CHV handle the cmnreset stuff in the power well code now,
so intel_reset_dpio() is no longer needed.

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>
10 years agodrm/i915: Add chv cmnlane power wells
Ville Syrjälä [Fri, 27 Jun 2014 23:04:08 +0000 (02:04 +0300)]
drm/i915: Add chv cmnlane power wells

CHV has two display PHYs so there are also two cmnlane power wells. Add
the approriate code to power the wells up/down.

Like on VLV we do the cmnreset assert/deassert and the DPLL refclock
enabling at approriate times.

This code actually works on my bsw.

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>
10 years agodrm/i915: Add chv_power_wells[]
Ville Syrjälä [Fri, 27 Jun 2014 23:04:07 +0000 (02:04 +0300)]
drm/i915: Add chv_power_wells[]

Add chv_power_wells[] so we can start to build up the power well support
for chv. Just the "always on" well there initialy.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Rafael Barbalho <rafael.barbalho@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Kill intel_crtc->vbl_wait
Ville Syrjälä [Thu, 22 May 2014 16:00:50 +0000 (19:00 +0300)]
drm/i915: Kill intel_crtc->vbl_wait

Share the waitqueue that drm_irq uses when performing the vblank evade
trick for atomic pipe updates.

v2: Keep intel_pipe_handle_vblank() (Chris)

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm: Add drm_crtc_vblank_waitqueue()
Ville Syrjälä [Thu, 22 May 2014 16:36:03 +0000 (19:36 +0300)]
drm: Add drm_crtc_vblank_waitqueue()

Add a small static inline helper to grab the vblank wait queue based on
the drm_crtc.

This is useful for drivers to do internal vblank waits using
wait_event() & co.

v2: Pimp commit message (Daniel)
    Add kernel doc (Daniel)

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: State readout and cross-checking for dp_m2_n2
Vandana Kannan [Tue, 5 Aug 2014 14:51:23 +0000 (07:51 -0700)]
drm/i915: State readout and cross-checking for dp_m2_n2

Adding relevant read out comparison code, in check_crtc_state, for the new
member of crtc_config, dp_m2_n2, which was introduced to store link_m_n
values for a DP downclock mode (if available). Suggested by Daniel.

v2: Changed patch title.
Daniel's review comments incorporated.
Added relevant state readout code for M2_N2. dp_m2_n2 comparison to be done
only when high RR is not in use (This is because alternate m_n register
programming will be done only when low RR is being used).

v3: Modified call to get_m2_n2 which had dp_m_n as param by mistake.
Compare dp_m_n and dp_m2_n2 for gen 7 and below. compare the structures
based on DRRS state for gen 8 and above.
Save and restore M2 N2 registers for gen 7 and below

v4: For Gen>=8, check M_N registers against dp_m_n and dp_m2_n2 as there is
only one set of M_N registers

v5: Removed the chunk which saves and restores M2_N2 registers. Modified
get_m_n() to get M2_N2 registers as well. Modified the macro which compares
hw.dp_m_n against sw.dp_m2_n2/sw.dp_m_n for gen > 8.

v6: Added check to compare dp_m2_n2 only when DRRS is enabled

v7: Modified drrs check to use has_drrs

v8: Add has_drrs check before reading M2_N2 registers

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Set M2_N2 registers during mode set
Vandana Kannan [Tue, 5 Aug 2014 14:51:22 +0000 (07:51 -0700)]
drm/i915: Set M2_N2 registers during mode set

For Gen < 8, set M2_N2 registers on every mode set. This is required to make
sure M2_N2 registers are set during boot, resume from sleep for cross-
checking the state. The register is set only if DRRS is supported.

v2: Patch rebased

v3: Daniel's review comments
- Removed HAS_DRRS(dev) and added bool has_drrs to pipe_config to
track drrs support

v4: Jesse's review comments
- Made changes to set m2_n2 in intel_dp_set_m_n()

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agoRevert "drm/i915: Enable semaphores on BDW"
Rodrigo Vivi [Mon, 4 Aug 2014 18:15:19 +0000 (11:15 -0700)]
Revert "drm/i915: Enable semaphores on BDW"

This reverts commit 521e62e49a42661a4ee0102644517dbe2f100a23.

Although POST_SYNC brought a bit of stability to Semaphores on BDW
it didn't solved all issues and some hungs can still occour when
semaphores are enabled on BDW. Also some sloweness can be found on some
igt tests, althoguth it apparently doesn't affect real workloads.

Besides that, no real performance gain was found on our tests with different
and even multiple workloads.

Let's disable it again for now. At least until we are sure it is safe
to re-enable it.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: read HEAD register back in init_ring_common() to enforce ordering
Jiri Kosina [Thu, 7 Aug 2014 14:29:53 +0000 (16:29 +0200)]
drm/i915: read HEAD register back in init_ring_common() to enforce ordering

Withtout this, ring initialization fails reliabily during resume with

[drm:init_ring_common] *ERROR* render ring initialization failed ctl 0001f001 head ffffff8804 tail 00000000 start 000e4000

This is not a complete fix, but it is verified to make the ring
initialization failures during resume much less likely.

We were not able to root-cause this bug (likely HW-specific to Gen4 chips)
yet. This is therefore used as a ducttape before problem is fully
understood and proper fix created, so that people don't suffer from
completely unusable systems in the meantime.

The discussion and debugging is happening at

https://bugs.freedesktop.org/show_bug.cgi?id=76554

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Fix crash when failing to parse MIPI VBT
Rafael Barbalho [Thu, 24 Jul 2014 14:16:12 +0000 (15:16 +0100)]
drm/i915: Fix crash when failing to parse MIPI VBT

This particular nasty presented itself while trying to register the
intelfb device (intel_fbdev.c). During the process of registering the device
the driver will disable the crtc via i9xx_crtc_disable. These will
also disable the panel using the generic mipi panel functions in
dsi_mod_vbt_generic.c. The stale MIPI generic data sequence pointers would
cause a crash within those functions. However, all of this is happening
while console_lock is held from do_register_framebuffer inside fbcon.c. Which
means that you got kernel log and just the device appearing to reboot/hang for
no apparent reason.

The fault started from the FB_EVENT_FB_REGISTERED event using the
fb_notifier_call_chain call in fbcon.c.

This regression has been introduced in

commit d3b542fcfc72d7724585e3fd2c5e75351bc3df47
Author: Shobhit Kumar <shobhit.kumar@intel.com>
Date:   Mon Apr 14 11:00:34 2014 +0530

    drm/i915: Add parsing support for new MIPI blocks in VBT

Cc: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Rafael Barbalho <rafael.barbalho@intel.com>
Reviewed-by: Shobhit Kumar <shobhit.kumar@intel.com>
[danvet: Add regression citation.]
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Bring GPU Freq to min while suspending.
Deepak S [Tue, 5 Aug 2014 14:51:20 +0000 (07:51 -0700)]
drm/i915: Bring GPU Freq to min while suspending.

We might be leaving the PGU Frequency (and thus vnn) high during the suspend.
Flusing the delayed work queue should take care of this.

Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Fix DEIER and GTIER collecting for BDW.
Rodrigo Vivi [Tue, 5 Aug 2014 17:07:13 +0000 (10:07 -0700)]
drm/i915: Fix DEIER and GTIER collecting for BDW.

BDW has many other Display Engine interrupts and GT interrupts registers.
Collecting it properly on gpu_error_state.

On debugfs all was properly listed already but besides we were also listing old
DEIER and GTIER that doesn't exist on BDW anymore. This was causing
unclaimed register messages

v2: Fix small issues of first version and don't read DEIER regs when pipe's
    power well is disabled
v3: bikeshed accepted: use enum pipe pipe instead of int i for pipe interection
v4: Ben notice previous version was checking for display_power_enabled without
    using propper locks. Using _unlocked version isn't reliable and we cannot
    get this registers when power well is off. So let's avoid getting all DE_IER
    per pipe for now. If someone think this is an useful information it can be
    added later.
v5: Ben: put back debugfs stuff that might be coverred by pm_get and use
      gen >= 8 trying to predict future.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=81701
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: (v3) Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Don't accumulate hangcheck score on forward progress
Mika Kuoppala [Tue, 5 Aug 2014 14:16:26 +0000 (17:16 +0300)]
drm/i915: Don't accumulate hangcheck score on forward progress

If the actual head has progressed forward inside a batch (request),
don't accumulate hangcheck score.

As the hangcheck score in increased only by acthd jumping backwards,
the result is that we only declare an active batch as stuck if it is
trapped inside a loop. Or that the looping will dominate the batch
progression so that it overcomes the bonus that forward progress gives.

v2: Improved commit message (Chris Wilson)

Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
[danvet: s/active_loop/active (loop)/ as requested by Chris.]
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Add the WaCsStallBeforeStateCacheInvalidate:bdw workaround.
Kenneth Graunke [Mon, 27 Jan 2014 22:20:16 +0000 (14:20 -0800)]
drm/i915: Add the WaCsStallBeforeStateCacheInvalidate:bdw workaround.

On Broadwell, any PIPE_CONTROL with the "State Cache Invalidate" bit set
must be preceded by a PIPE_CONTROL with the "CS Stall" bit set.

Documented on the BSpec 3D workarounds page.

Reviewed-by: Rafael Barbalho <rafael.barbalho@intel.com>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
[vsyrjala: add chv w/a note too]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Refactor Broadwell PIPE_CONTROL emission into a helper.
Kenneth Graunke [Fri, 27 Jun 2014 23:04:20 +0000 (02:04 +0300)]
drm/i915: Refactor Broadwell PIPE_CONTROL emission into a helper.

We'll want to reuse this for a workaround.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Rmove now unused int.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Fix threshold for choosing 32 vs. 64 precisions for VLV DDL values
Ville Syrjälä [Fri, 27 Jun 2014 21:40:34 +0000 (00:40 +0300)]
drm/i915: Fix threshold for choosing 32 vs. 64 precisions for VLV DDL values

The DDL registers can hold 7bit numbers. Make the most of those seven
bits by adjusting the threshold where we switch between the 64 vs. 32
precision multipliers.

Also we compute 'entries' to make the decision about precision, and then
we recompute the same value to calculate the actual drain latency. Just
use the already calculate 'entries' there.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Fix drain latency precision multipler for VLV
Zhenyu Wang [Thu, 27 Feb 2014 22:50:06 +0000 (06:50 +0800)]
drm/i915: Fix drain latency precision multipler for VLV

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Collect gtier properly on HSW.
Rodrigo Vivi [Fri, 1 Aug 2014 16:12:27 +0000 (09:12 -0700)]
drm/i915: Collect gtier properly on HSW.

GTIER and DEIER doesn't have same interface on HSW so this "or" operation
makes the information provided useless.

v2: since we have gtier variable already let's split for everybody
and avoid the strange | op.
    Also avoid overriding the value that was set for vlv. In this case I
    believe that we should reorganize the whole function, but I'll respect
    the comment that ask to not touch the order and let this organization
    work to be done later.
v3: moving VLV check to the right place.

Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Tune down MCH_SSKPD values warning
Daniel Vetter [Mon, 4 Aug 2014 09:17:25 +0000 (11:17 +0200)]
drm/i915: Tune down MCH_SSKPD values warning

Users often can't do anything about this since their vendors stopped
providing BIOS updates. Also we seem to be able to hack around it
with increased latency values, and thus far the only reports have
been for screens with really high resolutions. So tune it down to a
level where only developers can see it.

Also drop some of the end-user fluff.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Tune done rc6 enabling output
Daniel Vetter [Mon, 4 Aug 2014 09:15:56 +0000 (11:15 +0200)]
drm/i915: Tune done rc6 enabling output

Power users spot this and then get adventurous and try to adjust
module driver options. Nothing good ever came out of that, so
hide it better.

Reviewed-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>
10 years agodrm/i915: Don't require dev->struct_mutex in psr_match_conditions
Daniel Vetter [Mon, 4 Aug 2014 08:45:00 +0000 (10:45 +0200)]
drm/i915: Don't require dev->struct_mutex in psr_match_conditions

Since I've reworked psr support to no longer require x-tiling we don't
check any state protected by the Giant GEM Lock. So drop that check.

Also boo for lockdep_assert_held for not yelling when lockdep is
disabled.

Cc: Paulo Zanoni <przanoni@gmail.com>
Reported-by: Paulo Zanoni <przanoni@gmail.com>
Acked-by: Paulo Zanoni <przanoni@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Fix error state collecting
Rodrigo Vivi [Fri, 1 Aug 2014 11:51:30 +0000 (04:51 -0700)]
drm/i915: Fix error state collecting

Fix signal_offset when recording semaphore state on BDW.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: fix VDD state tracking after system resume
Imre Deak [Thu, 31 Jul 2014 11:03:36 +0000 (14:03 +0300)]
drm/i915: fix VDD state tracking after system resume

Just like during booting the BIOS can leave the VDD bit enabled after
system resume. So apply the same state sanitization there too. This
fixes a problem where after resume the port power domain refcount gets
unbalanced.

v2:
- unchanged
v3:
- call edp sanitizing from the encoder reset handler (Daniel)

Reported-and-tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Add correct hw/sw config check for DSI encoder
Shobhit Kumar [Wed, 30 Jul 2014 15:02:37 +0000 (20:32 +0530)]
drm/i915: Add correct hw/sw config check for DSI encoder

Check in vlv_crtc_clock_get if DPLL is enabled before calling dpio read.
It will not be enabled for DSI and avoid dpio read WARN dumps.

Absence of ->get_config was causing other WARN dumps as well. Update
dpll_hw_state as well correctly

v2: Address review comments by Daniel
    - Check if DPLL is enabled rather than checking pipe output type
    - set adjusted_mode->flags to 0 in compute_config rather than using
      pipe_config->quirks
    - Add helper function in intel_dsi_pll.c and use that in intel_dsi.c
    - updated dpll_hw_state correctly
    - Updated commit message and title

v3: Address review comments by Imre
    - Proper masking of P1, M1 fields while computing divisors
    - assert in case of bpp mismatch
    - guard for divide by 0 while computing pclk
    - Use ARRAY_SIZE instead of direct calculation

Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: factor out intel_edp_panel_vdd_sanitize
Imre Deak [Wed, 30 Jul 2014 12:57:31 +0000 (15:57 +0300)]
drm/i915: factor out intel_edp_panel_vdd_sanitize

This will be needed by an upcoming patch too that needs to sanitize the
VDD state during resume. The additional async disabling is only needed
for the resume path, here it doesn't make a difference since we enable
VDD right after the sanitize call.

v2:
- don't set intel_dp ptr for non-eDP encoders (Ville)

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: wait for all DSI FIFOs to be empty
Shobhit Kumar [Sat, 12 Jul 2014 11:47:22 +0000 (17:17 +0530)]
drm/i915: wait for all DSI FIFOs to be empty

Ensure that the DSI packets for a particular sequence are completely
sent before going ahead in the enabling or disabling of the panel

Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: work around warning in i915_gem_gtt
Pavel Machek [Mon, 28 Jul 2014 11:20:58 +0000 (13:20 +0200)]
drm/i915: work around warning in i915_gem_gtt

Gcc warns that addr might be used uninitialized. It may not, but I see
why gcc gets confused.

Additionally, hiding code with side-effects inside WARN_ON() argument
seems uncool, so I moved it outside.

Signed-off-by: Pavel Machek <pavel@ucw.cz>
[danvet: Add obligatory /* shuts up gcc */ comment.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Update DRIVER_DATE to 20140725
Daniel Vetter [Fri, 25 Jul 2014 20:53:39 +0000 (22:53 +0200)]
drm/i915: Update DRIVER_DATE to 20140725

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/ttm: Pass GFP flags in order to avoid deadlock.
Tetsuo Handa [Sun, 3 Aug 2014 11:02:31 +0000 (20:02 +0900)]
drm/ttm: Pass GFP flags in order to avoid deadlock.

Commit 7dc19d5a "drivers: convert shrinkers to new count/scan API" added
deadlock warnings that ttm_page_pool_free() and ttm_dma_page_pool_free()
are currently doing GFP_KERNEL allocation.

But these functions did not get updated to receive gfp_t argument.
This patch explicitly passes sc->gfp_mask or GFP_KERNEL to these functions,
and removes the deadlock warning.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: stable <stable@kernel.org> [2.6.35+]
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/ttm: Fix possible stack overflow by recursive shrinker calls.
Tetsuo Handa [Sun, 3 Aug 2014 11:02:03 +0000 (20:02 +0900)]
drm/ttm: Fix possible stack overflow by recursive shrinker calls.

While ttm_dma_pool_shrink_scan() tries to take mutex before doing GFP_KERNEL
allocation, ttm_pool_shrink_scan() does not do it. This can result in stack
overflow if kmalloc() in ttm_page_pool_free() triggered recursion due to
memory pressure.

  shrink_slab()
  => ttm_pool_shrink_scan()
     => ttm_page_pool_free()
        => kmalloc(GFP_KERNEL)
           => shrink_slab()
              => ttm_pool_shrink_scan()
                 => ttm_page_pool_free()
                    => kmalloc(GFP_KERNEL)

Change ttm_pool_shrink_scan() to do like ttm_dma_pool_shrink_scan() does.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: stable <stable@kernel.org> [2.6.35+]
Signed-off-by: Dave Airlie <airlied@redhat.com>