Commit Graph

3730 Commits

Author SHA1 Message Date
Jani Nikula
e518634b43 drm/i915/dsi: use vlv and bxt prefixes for the global DSI functions
Avoid confusion with the functions to be added for the new ICL or gen 11
DSI implementation by renaming the current DSI functions. While at it,
permutate the words in the function names to make them all start with
"vlv_dsi" or "vlv_dsi_pll" etc.

Reduce the platform abstractions in the PLL file while at it, moving the
checks to vlv_dsi.c instead, where we typically already have the
necessary if ladders.

Leave the static functions as-is for now; they could be renamed later if
needed.

No functional changes.

v2: use "gen7" prefix.

v3: use "vlv" and "bxt" prefixes, reduce the abstractions.

References: https://patchwork.freedesktop.org/series/44823/
Cc: Madhav Chauhan <madhav.chauhan@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Madhav Chauhan <madhav.chauhan@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180705132509.12881-2-jani.nikula@intel.com
2018-07-06 10:54:05 +03:00
Gustavo A. R. Silva
f0d759f038 drm/i915: Mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 141432
Addresses-Coverity-ID: 141433
Addresses-Coverity-ID: 141434
Addresses-Coverity-ID: 141435
Addresses-Coverity-ID: 141436
Addresses-Coverity-ID: 1357360
Addresses-Coverity-ID: 1357403
Addresses-Coverity-ID: 1357433
Addresses-Coverity-ID: 1392622
Addresses-Coverity-ID: 1415273
Addresses-Coverity-ID: 1435752
Addresses-Coverity-ID: 1441500
Addresses-Coverity-ID: 1454596
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180628223541.GA17665@embeddedor.com
2018-07-05 16:40:51 +03:00
Dhinakaran Pandiyan
abdd322f68 drm/i915: Remove unnecessary check for unsupported modifiers for NV12
There is already a check to allow only RGB8888 formats with CCS
modifiers.

Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180628061854.6430-1-dhinakaran.pandiyan@intel.com
2018-07-02 10:37:38 -07:00
Thomas Zimmermann
ef196b5c2f drm/i915: Replace drm_connector_{un/reference} with put,get functions
This patch unifies the naming of DRM functions for reference counting
of struct drm_connector. The resulting code is more aligned with the
rest of the Linux kernel interfaces.

Signed-off-by: Thomas Zimmermann <tdz@users.sourceforge.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180618110154.30462-2-tdz@users.sourceforge.net
2018-06-28 19:09:21 +02:00
Imre Deak
525280552b drm/i915/ddi: Get AUX power domain for DP main link too
So far we got an AUX power domain reference only for the duration of DP
AUX transfers. However, the following suggests that we also need these
for main link functionality:
- The specification doesn't state whether it's needed or not for main
  link functionality, but suggests that these power wells need to be
  enabled already during display core initialization (Sequences to
  Initialize Display).
- For PSR we need to keep the AUX power well enabled.
- On ICL combo PHY ports (non-TC) the AUX power well is needed for
  link training too: while the port is enabled with a DP link training
  test pattern trying to toggle the AUX power well will time out.
- On ICL MG PHY ports (TC) the AUX power well is needed also for main
  link functionality (both in DP and HDMI modes).
- Windows enables these power wells both for main and AUX lane
  functionality.

Based on the above take an AUX power reference for main link
functionality too. This makes a difference only on GEN10+ (GLK+)
platforms, where we have separate port specific AUX power wells.

For PSR we still need to distinguish between port A and the other
ports, since on port A DC states must stay enabled for main link
functionality, but DC states must be disabled for driver initiated
AUX transfers. So re-use the corresponding helper from intel_psr.c.

Since we take now a reference for main link functionality on all DP
ports we can forgo taking the separate power ref for PSR functionality.

v2:
- Make sure DC states stay enabled when taking the ref on port A.
  (Ville)

v3: (Ville)
- Fix comment about logic for encoders without a crtc state and
  add FIXME note for a simplification to avoid calling get_power_domains
  in such cases.
- Use intel_crtc_has_dp_encoder() instead !intel_crtc_has_type(HDMI).

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
[Clarified code comments in intel_ddi_main_link_aux_domain() and
 intel_ddi_get_power_domains() (Imre)]
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180621184449.26634-1-imre.deak@intel.com
2018-06-26 13:00:52 +03:00
Chris Wilson
8d52e44780 drm/i915: Defer modeset cleanup to a secondary task
If we avoid cleaning up the old state immediately in
intel_atomic_commit_tail() and defer it to a second task, we can avoid
taking heavily contended locks when the caller is ready to procede.
Subsequent modesets will wait for the cleanup operation (either directly
via the ordered modeset wq or indirectly through the atomic helperr)
which keeps the number of inflight cleanup tasks in check.

As an example, during reset an immediate modeset is performed to disable
the displays before the HW is reset, which must avoid struct_mutex to
avoid recursion. Moving the cleanup to a separate task, defers acquiring
the struct_mutex to after the GPU is running again, allowing it to
complete. Even in a few patches time (optimist!) when we no longer
require struct_mutex to unpin the framebuffers, it will still be good
practice to minimise the number of contention points along reset. The
mutex dependency still exists (as one modeset flushes the other), but in
the short term it resolves the deadlock for simple reset cases.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101600
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180623103951.23889-1-chris@chris-wilson.co.uk
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-06-25 16:27:56 +01:00
Vandita Kulkarni
e16a375086 drm/i915: Enable hw workaround to bypass alpha
Alpha blending with alpha 0 and 0xff passes through
alpha math and rounding logic causing differences
compared to fully transparent or opaque plane,resulting
in CRC mismatch.
This WA on icl and above enables hardware to bypass alpha
math and rounding for per pixel alpha values of 00 and 0xff

v2: Fix patchwork checkpatch warnings.

Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1529594036-25036-1-git-send-email-vandita.kulkarni@intel.com
2018-06-21 20:25:00 +02:00
Ville Syrjälä
ad77c537ea drm/i915: Check timings against hardware maximums
Validate that all display timings fit within the number of bits
we have in the transcoder timing registers.

The limits are:
hsw+:
 4k: vdisplay, vblank_start
 8k: everything else
gen3+:
 4k: h/vdisplay, h/vblank_start
 8k: everything else
gen2:
 2k: h/vdisplay, h/vblank_start
 4k: everything else

Also document the fact that the mode_config.max_width/height limits
refer to just the max framebuffer dimensions we support. Which may
be larger than the max hdisplay/vdisplay.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180615174406.12258-2-ville.syrjala@linux.intel.com
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
2018-06-19 17:18:24 +03:00
Ville Syrjälä
98fac1d5c5 drm/i915: Nuke the cursor size defines
No point in having this extra indireciton for the cursor max size.
So drop the defines and just write out the raw numbers. Makes it
easier to see what's going on.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180615174406.12258-1-ville.syrjala@linux.intel.com
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
2018-06-19 17:18:24 +03:00
Paulo Zanoni
00c92d929a drm/i915/icl: unconditionally init DDI for every port
On ICP, port present straps (from SFUSE_STRAP PCH register) are no
longer supported. Software should determine the presence through BIOS
VBT, hotplug or other mechanisms.

v2: Improve commit message (Lucas).

Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180522002558.29262-14-paulo.r.zanoni@intel.com
2018-06-14 14:53:58 -07:00
Paulo Zanoni
970888e7d1 drm/i915/icl: add icelake_get_ddi_pll()
Implement the hardware state readout code.

Thanks to Animesh Manna for spotting this problem.

Cc: Animesh Manna <animesh.manna@intel.com>
Credits-to: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180522002558.29262-11-paulo.r.zanoni@intel.com
2018-06-14 14:53:19 -07:00
Imre Deak
afb2c4437d drm/i915/ddi: Push pipe clock enabling to encoders
On ICL the pipe clock needs to be enabled before setting the HDMI
infoframe, but these steps are in the reverse order atm. Move the pipe
clock enabling to the encoders, so reordering of the two steps can be
done in a clean way.

No functional change.

v2:
- Rebased on drm-tip.

Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180613172746.18525-1-imre.deak@intel.com
2018-06-14 19:50:07 +03:00
Imre Deak
24a28179ec drm/i915/ddi: s/crtc->config/old_crtc_state in haswell_crtc_disable()
crtc->config points to the old crtc state at the point
display.crtc_disable() is called, so use the more descriptive pointer
instead.

v2:
- Convert one remaining instance of the ptr in the function. (Ville)

Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180613170710.15080-2-imre.deak@intel.com
2018-06-14 19:50:02 +03:00
Ville Syrjälä
e4dd27aadd drm/i915: Allow DBLSCAN user modes with eDP/LVDS/DSI
When encountering a connector with the scaling mode property both
intel and modesetting ddxs sometimes add tons of DBLSCAN modes
to the output's mode list. The idea presumably being that since the
output will be going through the panel fitter anyway we can pretend
to use any kind of mode.

Sadly that means we can't reject user modes with the DBLSCAN flag
until we know whether we're going to be using the panel's native
mode or the user mode directly. Doing otherwise means X clients using
xf86vidmode/xrandr will get a protocol error (and often self
terminate as a result) when the kernel refuses to use the requested
mode with the DBLSCAN flag.

To undo the regression we'll move the DBLSCAN checks into the
connector->mode_valid() and encoder->compute_config() hooks.

Cc: stable@vger.kernel.org
Cc: Vito Caputo <vcaputo@pengaru.com>
Reported-by: Vito Caputo <vcaputo@pengaru.com>
Fixes: e995ca0b81 ("drm/i915: Provide a device level .mode_valid() hook")
References: https://lkml.org/lkml/2018/5/21/715
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180524125403.23445-1-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106804
Tested-by: Arkadiusz Miskiewicz <arekm@maven.pl>
2018-06-13 21:08:14 +03:00
Paulo Zanoni
ac213c1b45 drm/i915/icl: introduce tc_port
Add and enum for TC ports and auxiliary functions to handle them.
Icelake brings a lot of registers and other things that only apply to
the TC ports and are indexed starting from 0, so having an enum for
tc_ports that starts at 0 really helps the indexing.

This patch is based on previous patches written by Dhinakaran Pandiyan
and Mahesh Kumar.

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Mahesh Kumar <mahesh1.kumar@intel.com>
Reviewed-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180522002558.29262-4-paulo.r.zanoni@intel.com
2018-06-01 16:04:56 -07:00
Ville Syrjälä
0a59952b24 drm/i915: Configure SKL+ scaler initial phase correctly
Set up the SKL+ scaler initial phase registers correctly. Otherwise
we start fetching the data from the center of the first pixel instead
of the top-left corner, which obviously then leads to right/bottom edges
replicating data excessively as the data runs out half a pixel too soon.

Cc: Vidya Srinivas <vidya.srinivas@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180521185613.5097-2-ville.syrjala@linux.intel.com
Reviewed-By: Vidya Srinivas <vidya.srinivas@intel.com>
2018-06-01 18:40:19 +03:00
Ville Syrjälä
012d79e6a3 drm/i915: Remove bogus NV12 PLANE_COLOR_CTL setup
We already handle the color encoding mode properly. Remove the broken
NV12 special case.

Cc: Vidya Srinivas <vidya.srinivas@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Fixes: 8ed30ab6ac ("drm/i915: Enable YUV to RGB for Gen10 in Plane Ctrl Reg")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180521185613.5097-1-ville.syrjala@linux.intel.com
Reviewed-By: Vidya Srinivas <vidya.srinivas@intel.com>
2018-06-01 18:40:19 +03:00
Ville Syrjälä
e876b78c5f drm/i915: Disable trickle feed for SNB/IVB cursors
We disable trickle feed whenever possible, except for the cursors
on SNB/IVB. Let's try disabling it there too if for no other reason
than consistency.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180130203807.13721-5-ville.syrjala@linux.intel.com
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
2018-06-01 18:40:19 +03:00
Ville Syrjälä
b99b9ec1d3 drm/i915: Clean up cursor defines
Use MCURSOR_ instead of CURSOR_ as the prefix for the non-845/865
cursor defines consistently, and move the pipe CSC enable bit next
to the other non-845/865 cursor defines.

v2: Take care of gvt uses as well
v3: Another gvt use popped up

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180131143709.875-1-ville.syrjala@linux.intel.com
Reviewed-by: Mika Kahola <mika.kahola@intel.com> #v2
2018-06-01 18:40:19 +03:00
Ville Syrjälä
eade6c8944 drm/i915: Have plane->get_hw_state() return the current pipe
Like we do for encoder let's make the plane->get_hw_state() return
the pipe to which the plane is currently attached. We don't currently
allow planes to move between the pipes, but perhaps one day we will.

In either case this makes the code more uniform and perhaps makes
intel_plane_mapping_ok() slightly more clear.

Note that for i965 and g4x planes A and B still have pipe select bits
but they're hardwired to pipe A and B respectively. This means we can
safely interpret those bits just like on gen2/3. This allows the
same readout code work for plane C (which can still be assigned
to eiter pipe on i965) should we ever expose it.

g4x no longer allows moving the cursor planes between the pipes,
but the pipe select bits can still be set in the register. Thus
we have to ignore those bits. OTOH i965 still allows the cursors
to move between pipes thus we have to trust the bits there.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180130203807.13721-3-ville.syrjala@linux.intel.com
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
2018-06-01 18:40:19 +03:00
Maarten Lankhorst
d6cae4aa30 drm/i915: Call intel_opregion_notify_encoder in intel_sanitize_encoder, v2.
Normally this is called on a modeset, but the call is missing when
we inherit the mode from the BIOS, so make sure it's called somewhere
in hardware readout.

Changes since v1:
- Unconditionally call intel_opregion_notify_encoder. (Ville)

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180516085038.36785-1-maarten.lankhorst@linux.intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2018-05-31 10:42:37 +02:00
Ville Syrjälä
2b5b63126e drm/i915: Simplify ilk-ivb underrun suppression
Let's suppress the underruns around every modeset sequence instead
of trying to avoid it. Planes are disabled at this point anyway so
we don't really gain anything from keeping the underrun reporting
enabled. Also for PCH ports we already suppress all underruns here
anyway so trying avoid it for the CPU eDP doesn't seem all that
important.

Maybe this gets rid of some lingering spurious underruns?

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180524190406.2973-2-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2018-05-25 22:19:29 +03:00
Ville Syrjälä
ea80a661fe drm/i915: Try to suppress more spurious PCH underruns on ILK-IVB
My ILK seems to generate a spurious PCH underrun with most interlaced
HDMI modes. Add a second vblank wait to avoid it.

We have seen some spurious PCH underruns still in CI as well, some
of which seem to be progressive DP. The logs also point towards some
spurious underrins with progressive HDMI on SNB. While I don't have
a solid explanation for those let's try to kill all the birds with one
stone and always do the double wait.

Buzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106387
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180524190406.2973-1-ville.syrjala@linux.intel.com
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
2018-05-25 18:00:26 +03:00
Ville Syrjälä
10ed55e4d9 drm/i915: Initialize panel_pipe to INVALID_PIPE
We can always figure out which pipe is affected by the panel power
sequencer lockout mechanism. So no need for the pipe A fallback
anymore. The only case we may have to worry about is an invalid
port select in the power sequencer, but INVALID_PIPE is just fine
in that case. We'll get the WARN about the bogus pps port select
anyway.

Cc: Jani Nikula <jani.nikula@intel.com>
Suggested-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180523145718.22932-1-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2018-05-25 18:00:26 +03:00
José Roberto de Souza
c894d63c6b drm/i915/icl: Disable pipe CSC and gamma in cursor plane
'Pipe CSC enable' bit is more than just deprecated in ICL+, it was
disabled in commit 077ef1f09c ("drm/i915/icl: Don't set pipe
CSC/Gamma in PLANE_COLOR_CTL") for primary and sprite planes as it was
causing those planes to be rendered as always black but it was not
disabled in cursor plane, also causing it to be rendered as black.

As mentioned in the commit referenced above, this is a workaround
too and the CSC and gamma per plane values needs to be setup before
enable CSC and gamma again.

BSpec: 4278 and 7635

Cc: James Ausmus <james.ausmus@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180518201547.15793-1-jose.souza@intel.com
2018-05-23 10:26:51 -07:00
Ville Syrjälä
f0d2b758e0 drm/i915: WARN if power sequencer is not connected to the LVDS port on pre-ilk
We don't support using the power sequencer with other ports besides LVDS
on pre-ilk platforms. WARN if someone has mistakenly connected the power
sequencer to the wrong port.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180518152931.13104-7-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2018-05-23 17:23:07 +03:00
Ville Syrjälä
4c23dea48b drm/i915: Implement the missing bits of assert_panel_unlocked()
Add the missing eDP port handling into assert_panel_unlocked(). We now
have intel_dp_port_enabled() which makes this trivial.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180518152931.13104-6-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2018-05-23 17:23:07 +03:00
Ville Syrjälä
59b74c497a drm/i915: Clean up DP pipe select bits
Clean up the DP pipe select bits. To make the whole situation a bit
less ugly we'll start to share the same code between .get_hw_state(),
the port state asserts, and the VLV power sequencer code.

v2: Return PIPE_A for cpt/ppt when the port isn't selected by
    any transcoder. Returning INVALID_PIPE explodes *somewhere*
    on some machines (can't immediately see where though). This
    now matches the old behaviour.
v3: Order the defines shift,mask,value (Jani)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180518152931.13104-4-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2018-05-23 17:23:07 +03:00
Ville Syrjälä
5a0b385e1c drm/i915: Nuke intel_trans_dp_port_sel()
for_each_encoder_on_crtc() is legacy and shouldn't be used by atomic
drivers. Let's throw out intel_trans_dp_port_sel() and replace it
with intel_get_crtc_new_encoder() which looks the atomic state instead.

Since we now have to call intel_get_crtc_new_encoder() during the commit
phase we'll need to plumb in the top level atomic state. The
crtc_state->state pointers are no longer valid at that point.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180518152931.13104-3-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2018-05-23 17:23:07 +03:00
Ville Syrjälä
f67dc6d886 drm/i915: Parametrize TRANS_DP_PORT_SEL
Parametrize the TRANS_DP_PORT_SEL macros.

v2: WARN for bogus ports (Jani)
    Order the defines mask,value (Jani)

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180518152931.13104-2-ville.syrjala@linux.intel.com
2018-05-23 17:23:07 +03:00
Ville Syrjälä
f606bc6d9d drm/i915: Move intel_ddi_get_crtc_new_encoder() out from ddi code
The ddi code no longer uses intel_ddi_get_crtc_new_encoder(). Move it
elsewhere where we have some users left.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180518152931.13104-1-ville.syrjala@linux.intel.com
2018-05-23 17:23:07 +03:00
Daniel Stone
a268bcd764 drm/i915: Move GEM BO inside drm_framebuffer
Since drm_framebuffer can now store GEM objects directly, place them
there rather than in our own subclass.

v2: Only hold a single reference per framebuffer, not per plane. (Ville)
v3: Drop NULL check in intel_fb_obj. (Ville)

Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: intel-gfx@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20180518143008.4120-2-daniels@collabora.com
2018-05-22 09:44:04 +01:00
Daniel Stone
a5ff7a45c9 drm/i915: Use intel_fb_obj() everywhere
We already have a macro to pull the GEM object from a FB, so use it
everywhere. We'll make use of this later to move the object storage.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: intel-gfx@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20180518143008.4120-1-daniels@collabora.com
2018-05-22 09:44:02 +01:00
Paulo Zanoni
c8af5274c3 drm/i915: enable the pipe/transcoder/planes later on HSW+
For all platforms that run haswell_crtc_enable, our spec tells us to
configure the transcoder clocks and do link training before it tells
us to set pipeconf and the other pipe/transcoder/plane registers.

Starting from Icelake, we get machine hangs if we try to touch the
pipe/transcoder registers without having the clocks configured and not
having some chicken bits set. So this patch changes
haswell_crtc_enable() to issue the calls at the appropriate order
mandated by the spec.

While setting the appropriate chicken bits would also work here, it's
better if we actually program the hardware the way it is intended to
be programmed. And the chicken bit also has some theoretical downsides
that may or may not affect us. Also, correctly programming the
hardware does not prevent us from setting the chicken bits in a later
patch in case we decide to.

v2: Don't forget link training (Ville).

Cc: Arthur J Runyan <arthur.j.runyan@intel.com>
Cc: James Ausmus <james.ausmus@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180502215851.30736-1-paulo.r.zanoni@intel.com
2018-05-17 15:35:10 -07:00
Ville Syrjälä
762034675e drm/i915: Clean up SDVO pipe select bits
Clean up the SDVO pipe select bits. To make the whole situation a bit
less ugly we'll start to share the same code between .get_hw_state()
and the port state asserts.

v2: Order the defines shift,mask,value (Jani)

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180514172423.9302-3-ville.syrjala@linux.intel.com
2018-05-17 19:33:38 +03:00
Ville Syrjälä
a44628b929 drm/i915: Clean up LVDS pipe select bits
Clean up the LVDS pipe select bits. To make the whole situation a bit
less ugly we'll start to share the same code between .get_hw_state()
and the port state asserts.

v2: Order the defines shift,mask,value (Jani)
    Drop ruperfluous braces and whitesapce changes (Jani)
    Combine masks in compute_is_dual_link_lvds() (Jani)
v3: Fix LVDS_PIPE_SEL_MASK_CPT

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180514182827.28629-1-ville.syrjala@linux.intel.com
2018-05-17 19:32:26 +03:00
Ville Syrjälä
6102a8ee8a drm/i915: Clean up ADPA pipe select bits
Clean up the ADPA pipe select bits. To make the whole situation a bit
less ugly we'll start to share the same code between .get_hw_state()
and the port state asserts.

v2: Order the defines shift,mask,value (Jani)

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180514172423.9302-1-ville.syrjala@linux.intel.com
2018-05-17 19:29:49 +03:00
Chandra Konduru
c0b56ab544 drm/i915: Add NV12 as supported format for primary plane
This patch adds NV12 to list of supported formats for
primary plane

v2: Rebased (Chandra Konduru)

v3: Rebased (me)

v4: Review comments by Ville addressed
Removed the skl_primary_formats_with_nv12 and
added NV12 case in existing skl_primary_formats

v5: Rebased (me)

v6: Missed the Tested-by/Reviewed-by in the previous series
Adding the same to commit message in this version.

v7: Review comments by Ville addressed
	Restricting the NV12 for BXT and on PIPE A and B
Rebased (me)

v8: Rebased (me)
Modified restricting the NV12 support for both BXT and KBL.

v9: Rebased (me)

v10: Addressed review comments from Maarten.
	Adding NV12 inside skl_primary_formats itself.

v11: Adding Reviewed By tag from Shashank Sharma

v12: Addressed review comments from Juha-Pekka Heikkila
"NV12 not to be supported by SKL"

v13: Addressed review comments from Ville
Added skl_pri_planar_formats to include NV12
and skl_plane_has_planar function to check for
NV12 support on plane. Added NV12 format to
skl_mod_supported. These were review comments
from Kristian Høgsberg <hoegsberg@gmail.com>

v14: Added reviewed by from Juha-Pekka Heikkila

v15: Rebased the series

v16: Added all tiling support under mod supported
for NV12. Credits to Megha Aggarwal

v17: Added RB by Maarten and Kristian

v18: Review comments from Maarten addressed -
Removing BROXTON support for NV12 due to WA826

v19: Addressed review comments from Maarten
Make changes to skl_mod_supported

Credits-to: Megha Aggarwal megha.aggarwal@intel.com
Credits-to: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Tested-by: Clinton Taylor <clinton.a.taylor@intel.com>
Reviewed-by: Kristian Høgsberg <hoegsberg@gmail.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Clinton Taylor <clinton.a.taylor@intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Signed-off-by: Nabendu Maiti <nabendu.bikash.maiti@intel.com>
Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1526074397-10457-6-git-send-email-vidya.srinivas@intel.com
2018-05-11 10:19:48 +02:00
Chandra Konduru
e44134f267 drm/i915: Add NV12 support to intel_framebuffer_init
This patch adds NV12 as supported format
to intel_framebuffer_init and performs various checks.

v2:
-Fix an issue in checks added (Chandra Konduru)

v3: rebased (me)

v4: Review comments by Ville addressed
Added platform check for NV12 in intel_framebuffer_init
Removed offset checks for NV12 case

v5: Addressed review comments by Clinton A Taylor
This NV12 support only correctly works on SKL.
Plane color space conversion is different on GLK and later platforms
causing the colors to display incorrectly.
Ville's plane color space property patch series
in review will fix this issue.
- Restricted the NV12 case in intel_framebuffer_init to
SKL and BXT only.

v6: Rebased (me)

v7: Addressed review comments by Ville
Restricting the NV12 to BXT for now.

v8: Rebased (me)
Restricting the NV12 changes to BXT and KBL for now.

v9: Rebased (me)

v10: NV12 supported by all GEN >= 9.
Making this change in intel_framebuffer_init. This is
part of addressing Maarten's review comments.
Comment under v8 no longer applicable

v11: Addressed review comments from Shashank Sharma

v12: Adding Reviewed By from Shashank Sharma

v13: Addressed review comments from Juha-Pekka Heikkila
"NV12 not to be supported by SKL"

v14: Addressed review comments from Maarten.
Add checks for fb width height for NV12 and fail the fb
creation if check fails. Added reviewed by from
Juha-Pekka Heikkila

v15: Rebased the series

v16: Setting the minimum value during fb creating to 16
as per Bspec for NV12. Earlier minimum was expected
to be > 16. Now changed it to >=16.

v17: Adding restriction to framebuffer_init - the fb
width and height should be a multiplier of 4

v18: Added RB from Maarten. Included Maarten's review comments
Dont allow CCS formats for fb creation of NV12

v19: Review comments from Maarten addressed -
Removing BROXTON support for NV12 due to WA826

Credits-to: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Tested-by: Clinton Taylor <clinton.a.taylor@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Reviewed-by: Clinton Taylor <clinton.a.taylor@intel.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Signed-off-by: Nabendu Maiti <nabendu.bikash.maiti@intel.com>
Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1526074397-10457-5-git-send-email-vidya.srinivas@intel.com
2018-05-11 10:19:48 +02:00
Maarten Lankhorst
5d794288fc drm/i915: Add skl_check_nv12_surface for NV12
We skip src trunction/adjustments for
NV12 case and handle the sizes directly.
Without this, pipe fifo underruns are seen on APL/KBL.

v2: For NV12, making the src coordinates multiplier of 4

v3: Moving all the src coords handling code for NV12
to skl_check_nv12_surface

v4: Added RB from Mika

v5: Rebased the series. Removed checks of mult of 4 in
skl_update_scaler, Added NV12 condition in intel_check_sprite_plane
where src x/w is being checked for mult of 2 for yuv planes.

v6: Made changes to skl_check_nv12_surface as per WA#1106

Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1526074397-10457-4-git-send-email-vidya.srinivas@intel.com
2018-05-11 10:19:48 +02:00
Vidya Srinivas
6deef9b605 drm/i915: Enable Display WA 0528
Possible hang with NV12 plane surface formats.
WA: When the plane source pixel format is NV12,
the CHICKEN_PIPESL_* register bit 22 must be set to 1
and the render decompression must not be enabled
on any of the planes in that pipe.

v2: removed unnecessary POSTING_READ

v3: Added RB from Maarten

v4: Removed support for NV12 for BROXTON

Credits-to: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1526074397-10457-3-git-send-email-vidya.srinivas@intel.com
2018-05-11 10:19:43 +02:00
Maarten Lankhorst
8e02115194 drm/i915: Enable display workaround 827 for all planes, v2.
The workaround was applied only to the primary plane, but is required
on all planes. Iterate over all planes in the crtc atomic check to see
if the workaround is enabled, and only perform the actual toggling in
the pre/post plane update functions.

Changes since v1:
- Track active NV12 planes in a nv12_planes bitmask. (Ville)

v2: Removing BROXTON support for NV12 due to WA826

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1526074397-10457-2-git-send-email-vidya.srinivas@intel.com
2018-05-11 09:53:22 +02:00
Paulo Zanoni
c27e917e2b drm/i915/icl: add basic support for the ICL clocks
This commit introduces the definitions for the ICL clocks and adds the
basic functions to the shared DPLL framework. It adds code for the
Enable and Disable sequences for some PLLs, but it does not have the
code to compute the actual PLL values, which are marked as TODO
comments and should be introduced as separate commits.

Special thanks to James Ausmus for investigating and fixing a bug with
the placement of icl_unmap_plls_to_ports() function.

v2:
 - Rebase around dpll_lock changes.
v3:
 - The spec now says what the timeouts should be.
 - Touch DPCLKA_CFGCR0_ICL at the appropriate time so we don't freeze
   the machine.
 - Checkpatch found a white space problem.
 - Small adjustments before upstreaming.
v4:
 - Move the ICL checks out of the *map_plls_to_ports() functions
  (James)
 - Add extra encoder check (James)
 - Call icl_unmap_plls_to_ports() later (James)
v5:
 - Rebase after the pll struct changes.
v6:
 - Properly make the unmap function based on encoders_post_disable()
   with regarding to checks and iterators.
 - Address checkpatch comment on "min = max = x()".

Cc: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: James Ausmus <james.ausmus@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180427231436.9353-1-paulo.r.zanoni@intel.com
2018-05-07 16:42:47 -07:00
Ville Syrjälä
bd4cd03c81 drm/i915: Correctly populate user mode h/vdisplay with pipe src size during readout
During state readout we first read out the pipe src size, store
that information in the user mode h/vdisplay, but later on we overwrite
that with the actual crtc timings. That makes our read out crtc state
inconsistent with itself when the BIOS has enabled the panel fitter to
scale the pipe contents. Let's preserve the pipe src size based
information in the user mode to make things consistent again.

This fixes a problem introduced by commit a2936e3d9a ("drm/i915:
Use drm_mode_get_hv_timing() to populate plane clip rectangle")
where the inconsistent state is now leading the plane clipping code
to report a failure on account the plane dst coordinates not matching
the user mode size. Previously we did the plane clipping based on
the pipe src size instead and thus never noticed the inconsistency.

The failure manifests as a WARN:
[    0.762117] [drm:intel_dump_pipe_config [i915]] requested mode:
[    0.762142] [drm:drm_mode_debug_printmodeline [drm]] Modeline 0:"1366x768" 60 72143 1366 1414 1446 1526 768 771 777 784 0x40 0xa
...
[    0.762327] [drm:intel_dump_pipe_config [i915]] port clock: 72143, pipe src size: 1024x768, pixel rate 72143
...
[    0.764666] [drm:drm_atomic_helper_check_plane_state [drm_kms_helper]] Plane must cover entire CRTC
[    0.764690] [drm:drm_rect_debug_print [drm]] dst: 1024x768+0+0
[    0.764711] [drm:drm_rect_debug_print [drm]] clip: 1366x768+0+0
[    0.764713] ------------[ cut here ]------------
[    0.764714] Could not determine valid watermarks for inherited state
[    0.764792] WARNING: CPU: 4 PID: 159 at drivers/gpu/drm/i915/intel_display.c:14584 intel_modeset_init+0x3ce/0x19d0 [i915]
...

Cc: FadeMind <fademind@gmail.com>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reported-by: FadeMind <fademind@gmail.com>
Reported-by: Dave Jones <davej@codemonkey.org.uk>
Tested-by: Dave Jones <davej@codemonkey.org.uk>
References: https://lists.freedesktop.org/archives/intel-gfx/2018-April/163186.html
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105992
Fixes: a2936e3d9a ("drm/i915: Use drm_mode_get_hv_timing() to populate plane clip rectangle")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180426163015.14232-1-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Tested-by: FadeMind <fademind@gmail.com>
2018-05-03 18:09:39 +03:00
Jani Nikula
53f071e19d Merge drm/drm-next into drm-intel-next-queued
Need d224985a5e ("sched/wait, drivers/drm: Convert wait_on_atomic_t()
usage to the new wait_var_event() API") in dinq to be able to fix
https://bugs.freedesktop.org/show_bug.cgi?id=106085.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2018-05-02 12:20:32 +03:00
Mahesh Kumar
aa9664ffe8 drm/i915/icl: Enable 2nd DBuf slice only when needed
ICL has two slices of DBuf, each slice of size 1024 blocks.
We should not always enable slice-2. It should be enabled only if
display total required BW is > 12GBps OR more than 1 pipes are enabled.

Changes since V1:
 - typecast total_data_rate to u64 before multiplication to solve any
   possible overflow (Rodrigo)
 - fix where skl_wm_get_hw_state was memsetting ddb, resulting
   enabled_slices to become zero
 - Fix the logic of calculating ddb_size
Changes since V2:
 - If no-crtc is part of commit required_slices will have value "0",
   don't try to disable DBuf slice.
Changes since V3:
 - Create a generic helper to enable/disable slice
 - don't return early if total_data_rate is 0, it may be cursor only
   commit, or atomic modeset without any plane.
Changes since V4:
 - Solve checkpatch warnings
 - use kernel types u8/u64 instead of uint8_t/uint64_t
Changes since V5:
 - Rebase

Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180426142517.16643-3-mahesh1.kumar@intel.com
2018-04-27 17:11:51 -07:00
Mahesh Kumar
74bd8004e4 drm/i915/icl: track dbuf slice-2 status
This patch adds support to start tracking status of DBUF slices.
This is foundation to introduce support for enabling/disabling second
DBUF slice dynamically for ICL.

Changes Since V1:
 - use kernel type u8 over uint8_t

Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Reviewed-by: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180426142517.16643-2-mahesh1.kumar@intel.com
2018-04-27 17:11:49 -07:00
James Ausmus
077ef1f09c drm/i915/icl: Don't set pipe CSC/Gamma in PLANE_COLOR_CTL
These fields have been deprecated and moved in ICL+. Stop setting the
bits.

They have moved to GAMMA_MODE and CSC_MODE, respectively. This patch
is just to stop incorrectly setting bits in PLANE_COLOR_CTL while
we're waiting for the new replacement functionality to be done.

v2: Drop useless comment, and change !(GEN >= 11) to (GEN < 11). (Ville)

v3: No changes

v4 (from Paulo): Rebase.

Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180328215803.13835-2-paulo.r.zanoni@intel.com
2018-04-27 13:40:09 -07:00
Ville Syrjälä
eadd2721d0 drm/i915: Protect PIPE_CONF_CHECK macros with do {} while(0)
Make the PIPE_CONF_CHECK macros a bit more robust by wrapping them
in do {} while(0). Avoids funky sirprises when you try put an 'else'
after a PIPE_CONF_CHECK invocation...

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180316183625.16316-1-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> #irc
2018-04-19 18:17:47 +03:00
Chris Wilson
b7268c5eed drm/i915: Pack params to engine->schedule() into a struct
Today we only want to pass along the priority to engine->schedule(), but
in the future we want to have much more control over the various aspects
of the GPU during a context's execution, for example controlling the
frequency allowed. As we need an ever growing number of parameters for
scheduling, move those into a struct for convenience.

v2: Move the anonymous struct into its own function for legibility and
ye olde gcc.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180418184052.7129-3-chris@chris-wilson.co.uk
2018-04-18 21:09:11 +01:00